v7.0.9

- Extract year from releaseDate using substring(0, 4) in both hooks
- Add year field to templateData in single download functions
- Add year field to templateData in bulk download functions
- Allows parseTemplate() to correctly replace {year} placeholder instead of defaulting to '0000'
- Fixes folder structure generation when year is used in filename or folder templates

Co-authored-by: Diego Glez <diego@example.com>

.github/FUNDING.yml

@@ -0,0 +1,3 @@
+github: afkarxyz
+ko_fi: afkarxyz
+buy_me_a_coffee: afkarxyz

.gitignore

@@ -61,4 +61,4 @@ test
 
 # Build notes (optional - uncomment if you don't want to commit)
 # BUILD_NOTES.md
-build.txt
+push.bat

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 afkarxyz
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1,4 +1,6 @@
 [![GitHub All Releases](https://img.shields.io/github/downloads/afkarxyz/SpotiFLAC/total?style=for-the-badge)](https://github.com/afkarxyz/SpotiFLAC/releases)
+[![Telegram Channel](https://img.shields.io/badge/CHANNEL-2CA5E0?style=for-the-badge&logo=telegram&logoColor=white)](https://t.me/spotiflac)
+[![Telegram Community](https://img.shields.io/badge/COMMUNITY-2CA5E0?style=for-the-badge&logo=telegram&logoColor=white)](https://t.me/spotiflac_chat)
 
 ![Image](https://github.com/user-attachments/assets/a6e92fdd-2944-45c1-83e8-e23a26c827af)
 
@@ -10,18 +12,92 @@ Get Spotify tracks in true FLAC from Tidal, Qobuz & Amazon Music — no account
 ![macOS](https://img.shields.io/badge/macOS-10.13%2B-000000?style=for-the-badge&logo=apple&logoColor=white)
 ![Linux](https://img.shields.io/badge/Linux-Any-FCC624?style=for-the-badge&logo=linux&logoColor=white)
 
+<a href="https://trendshift.io/repositories/15737" target="_blank"><img src="https://trendshift.io/api/badge/repositories/15737" alt="afkarxyz%2FSpotiFLAC | Trendshift" style="width: 250px; height: 55px;" width="250" height="55"/></a>
+
 </div>
 
 ### [Download](https://github.com/afkarxyz/SpotiFLAC/releases)
 
 ## Screenshot
 
-![Image](https://github.com/user-attachments/assets/afe01529-bcf0-4486-8792-62af26adafee)
+![Image](https://github.com/user-attachments/assets/adbdc056-bace-44a9-8ba6-898b4526b65a)
 
-## Other project
+## Other projects
 
-### [SpotiDownloader](https://github.com/afkarxyz/SpotiDownloader) 
+### [SpotiFLAC Next](https://github.com/spotiverse/SpotiFLAC-Next)
 
-Get Spotify tracks in MP3 and FLAC via the spotidownloader.com API
+Get Spotify tracks in Hi-Res lossless FLACs — no account required.
 
-[![Ko-fi](https://ko-fi.com/img/githubbutton_sm.svg)](https://ko-fi.com/afkarxyz)
+### [SpotiDownloader](https://github.com/afkarxyz/SpotiDownloader)
+
+Get Spotify tracks in MP3 and FLAC via spotidownloader.com
+
+### [SpotubeDL](https://spotubedl.com)
+
+Download Spotify Tracks, Albums, Playlists as MP3/OGG/Opus with High Quality.
+
+### [SpotiFLAC (Mobile)](https://github.com/zarzet/SpotiFLAC-Mobile)
+
+SpotiFLAC for Android & iOS — maintained by [@zarzet](https://github.com/zarzet)
+
+## FAQ
+
+### Is this software free?
+
+_Yes. This software is completely free.
+You do not need an account, login, or subscription.
+All you need is an internet connection._
+
+### Can using this software get my Spotify account suspended or banned?
+
+_No.
+This software has no connection to your Spotify account.
+Spotify data is obtained through reverse engineering of the Spotify Web Player, not through user authentication._
+
+### Where does the audio come from?
+
+_The audio is fetched using third-party APIs._
+
+### Why does metadata fetching sometimes fail?
+
+_This usually happens because your IP address has been rate-limited.
+You can wait and try again later, or use a VPN to bypass the rate limit._
+
+### Why does Windows Defender or antivirus flag or delete the file?
+
+_This is a false positive.
+It likely happens because the executable is compressed using UPX._
+
+_If you are concerned, you can fork the repository and build the software yourself from source._
+
+### Want to support the project?
+
+_If this software is useful and brings you value,
+consider supporting the project by buying me a coffee.
+Your support helps keep development going._
+
+[![Ko-fi](https://img.shields.io/badge/Support%20me%20on%20Ko--fi-72a5f2?style=for-the-badge&logo=ko-fi&logoColor=white)](https://ko-fi.com/afkarxyz)
+[![Buy Me A Coffee](https://img.shields.io/badge/Buy%20Me%20a%20Coffee-ffdd00?style=for-the-badge&logo=buy-me-a-coffee&logoColor=black)](https://www.buymeacoffee.com/afkarxyz)
+
+## Disclaimer
+
+This project is for **educational and private use only**. The developer does not condone or encourage copyright infringement.
+
+**SpotiFLAC** is a third-party tool and is not affiliated with, endorsed by, or connected to Spotify, Tidal, Qobuz, Amazon Music, or any other streaming service.
+
+You are solely responsible for:
+
+1. Ensuring your use of this software complies with your local laws.
+2. Reading and adhering to the Terms of Service of the respective platforms.
+3. Any legal consequences resulting from the misuse of this tool.
+
+The software is provided "as is", without warranty of any kind. The author assumes no liability for any bans, damages, or legal issues arising from its use.
+
+## API Credits
+
+- **Tidal**: [hifi-api](https://github.com/binimum/hifi-api)
+- **Qobuz**: [dabmusic.xyz](https://dabmusic.xyz), [squid.wtf](https://squid.wtf), [jumo-dl](https://jumo-dl.pages.dev/)
+
+> [!TIP]
+>
+> **Star Us**, You will receive all release notifications from GitHub without any delay ~

backend/amazon.go

@@ -5,10 +5,10 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"math/rand"
 	"net/http"
 	"net/url"
 	"os"
+	"os/exec"
 	"path/filepath"
 	"regexp"
 	"strings"
@@ -16,11 +16,8 @@ import (
 )
 
 type AmazonDownloader struct {
-	client           *http.Client
-	regions          []string
-	lastAPICallTime  time.Time
-	apiCallCount     int
-	apiCallResetTime time.Time
+	client  *http.Client
+	regions []string
 }
 
 type SongLinkResponse struct {
@@ -29,19 +26,9 @@ type SongLinkResponse struct {
 	} `json:"linksByPlatform"`
 }
 
-type DoubleDoubleSubmitResponse struct {
-	Success bool   `json:"success"`
-	ID      string `json:"id"`
-}
-
-type DoubleDoubleStatusResponse struct {
-	Status         string `json:"status"`
-	FriendlyStatus string `json:"friendlyStatus"`
-	URL            string `json:"url"`
-	Current        struct {
-		Name   string `json:"name"`
-		Artist string `json:"artist"`
-	} `json:"current"`
+type AmazonStreamResponse struct {
+	StreamURL     string `json:"streamUrl"`
+	DecryptionKey string `json:"decryptionKey"`
 }
 
 func NewAmazonDownloader() *AmazonDownloader {
@@ -49,100 +36,36 @@ func NewAmazonDownloader() *AmazonDownloader {
 		client: &http.Client{
 			Timeout: 120 * time.Second,
 		},
-		regions:          []string{"us", "eu"},
-		apiCallResetTime: time.Now(),
+		regions: []string{"us", "eu"},
 	}
 }
 
-func (a *AmazonDownloader) getRandomUserAgent() string {
-	return fmt.Sprintf("Mozilla/5.0 (Macintosh; Intel Mac OS X 10_%d_%d) AppleWebKit/%d.%d (KHTML, like Gecko) Chrome/%d.0.%d.%d Safari/%d.%d",
-		rand.Intn(4)+11, rand.Intn(5)+4,
-		rand.Intn(7)+530, rand.Intn(7)+30,
-		rand.Intn(25)+80, rand.Intn(1500)+3000, rand.Intn(65)+60,
-		rand.Intn(7)+530, rand.Intn(6)+30)
-}
-
 func (a *AmazonDownloader) GetAmazonURLFromSpotify(spotifyTrackID string) (string, error) {
-	// Rate limiting: max 10 requests per minute (song.link API limit)
-	// Reset counter every minute
-	now := time.Now()
-	if now.Sub(a.apiCallResetTime) >= time.Minute {
-		a.apiCallCount = 0
-		a.apiCallResetTime = now
-	}
 
-	// If we've hit the limit, wait until the next minute
-	if a.apiCallCount >= 9 { // Use 9 to be safe (limit is 10)
-		waitTime := time.Minute - now.Sub(a.apiCallResetTime)
-		if waitTime > 0 {
-			fmt.Printf("Rate limit reached, waiting %v...\n", waitTime.Round(time.Second))
-			time.Sleep(waitTime)
-			a.apiCallCount = 0
-			a.apiCallResetTime = time.Now()
-		}
-	}
+	spotifyBase := "https://open.spotify.com/track/"
+	spotifyURL := fmt.Sprintf("%s%s", spotifyBase, spotifyTrackID)
 
-	// Add delay between requests (6 seconds = 10 requests per minute)
-	if !a.lastAPICallTime.IsZero() {
-		timeSinceLastCall := now.Sub(a.lastAPICallTime)
-		minDelay := 7 * time.Second // 7 seconds to be safe
-		if timeSinceLastCall < minDelay {
-			waitTime := minDelay - timeSinceLastCall
-			fmt.Printf("Rate limiting: waiting %v...\n", waitTime.Round(time.Second))
-			time.Sleep(waitTime)
-		}
-	}
-
-	// Decode base64 API URL
-	spotifyBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9vcGVuLnNwb3RpZnkuY29tL3RyYWNrLw==")
-	spotifyURL := fmt.Sprintf("%s%s", string(spotifyBase), spotifyTrackID)
-
-	apiBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9hcGkuc29uZy5saW5rL3YxLWFscGhhLjEvbGlua3M/dXJsPQ==")
-	apiURL := fmt.Sprintf("%s%s", string(apiBase), url.QueryEscape(spotifyURL))
+	apiBase := "https://api.song.link/v1-alpha.1/links?url="
+	apiURL := fmt.Sprintf("%s%s", apiBase, url.QueryEscape(spotifyURL))
 
 	req, err := http.NewRequest("GET", apiURL, nil)
 	if err != nil {
 		return "", fmt.Errorf("failed to create request: %w", err)
 	}
-
-	req.Header.Set("User-Agent", a.getRandomUserAgent())
+	req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36")
 
 	fmt.Println("Getting Amazon URL...")
 
-	// Retry logic for rate limit errors
-	maxRetries := 3
-	var resp *http.Response
-	for i := 0; i < maxRetries; i++ {
-		resp, err = a.client.Do(req)
-		if err != nil {
-			return "", fmt.Errorf("failed to get Amazon URL: %w", err)
-		}
-
-		// Update rate limit tracking
-		a.lastAPICallTime = time.Now()
-		a.apiCallCount++
-
-		if resp.StatusCode == 429 { // Too Many Requests
-			resp.Body.Close()
-			if i < maxRetries-1 {
-				waitTime := 15 * time.Second
-				fmt.Printf("Rate limited by API, waiting %v before retry...\n", waitTime)
-				time.Sleep(waitTime)
-				continue
-			}
-			return "", fmt.Errorf("API rate limit exceeded after %d retries", maxRetries)
-		}
-
-		if resp.StatusCode != 200 {
-			resp.Body.Close()
-			return "", fmt.Errorf("API returned status %d", resp.StatusCode)
-		}
-
-		break
+	resp, err := a.client.Do(req)
+	if err != nil {
+		return "", fmt.Errorf("failed to get Amazon URL: %w", err)
 	}
 	defer resp.Body.Close()
 
-	// Read body first to handle encoding issues and provide better error messages
+	if resp.StatusCode != 200 {
+		return "", fmt.Errorf("API returned status %d", resp.StatusCode)
+	}
+
 	body, err := io.ReadAll(resp.Body)
 	if err != nil {
 		return "", fmt.Errorf("failed to read response body: %w", err)
@@ -154,7 +77,7 @@ func (a *AmazonDownloader) GetAmazonURLFromSpotify(spotifyTrackID string) (strin
 
 	var songLinkResp SongLinkResponse
 	if err := json.Unmarshal(body, &songLinkResp); err != nil {
-		// Truncate body for error message (max 200 chars)
+
 		bodyStr := string(body)
 		if len(bodyStr) > 200 {
 			bodyStr = bodyStr[:200] + "..."
@@ -169,7 +92,6 @@ func (a *AmazonDownloader) GetAmazonURLFromSpotify(spotifyTrackID string) (strin
 
 	amazonURL := amazonLink.URL
 
-	// Convert album URL to track URL if needed
 	if strings.Contains(amazonURL, "trackAsin=") {
 		parts := strings.Split(amazonURL, "trackAsin=")
 		if len(parts) > 1 {
@@ -183,206 +105,178 @@ func (a *AmazonDownloader) GetAmazonURLFromSpotify(spotifyTrackID string) (strin
 	return amazonURL, nil
 }
 
-func (a *AmazonDownloader) DownloadFromService(amazonURL, outputDir string) (string, error) {
-	var lastError error
+func (a *AmazonDownloader) DownloadFromAfkarXYZ(amazonURL, outputDir, quality string) (string, error) {
 
-	for _, region := range a.regions {
-		fmt.Printf("\nTrying region: %s...\n", region)
-		// Decode base64 service URL
-		serviceBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly8=")
-		serviceDomain, _ := base64.StdEncoding.DecodeString("LmRvdWJsZWRvdWJsZS50b3A=")
-		baseURL := fmt.Sprintf("%s%s%s", string(serviceBase), region, string(serviceDomain))
-
-		// Step 1: Submit download request
-		encodedURL := url.QueryEscape(amazonURL)
-		submitURL := fmt.Sprintf("%s/dl?url=%s", baseURL, encodedURL)
-
-		req, err := http.NewRequest("GET", submitURL, nil)
-		if err != nil {
-			lastError = fmt.Errorf("failed to create request: %w", err)
-			continue
-		}
-
-		req.Header.Set("User-Agent", a.getRandomUserAgent())
-
-		fmt.Println("Submitting download request...")
-		resp, err := a.client.Do(req)
-		if err != nil {
-			lastError = fmt.Errorf("failed to submit request: %w", err)
-			continue
-		}
-
-		if resp.StatusCode != 200 {
-			resp.Body.Close()
-			lastError = fmt.Errorf("submit failed with status %d", resp.StatusCode)
-			continue
-		}
-
-		var submitResp DoubleDoubleSubmitResponse
-		if err := json.NewDecoder(resp.Body).Decode(&submitResp); err != nil {
-			resp.Body.Close()
-			lastError = fmt.Errorf("failed to decode submit response: %w", err)
-			continue
-		}
-		resp.Body.Close()
-
-		if !submitResp.Success || submitResp.ID == "" {
-			lastError = fmt.Errorf("submit request failed")
-			continue
-		}
-
-		downloadID := submitResp.ID
-		fmt.Printf("Download ID: %s\n", downloadID)
-
-		// Step 2: Poll for completion
-		statusURL := fmt.Sprintf("%s/dl/%s", baseURL, downloadID)
-		fmt.Println("Waiting for download to complete...")
-
-		maxWait := 300 * time.Second
-		elapsed := time.Duration(0)
-		pollInterval := 3 * time.Second
-
-		for elapsed < maxWait {
-			time.Sleep(pollInterval)
-			elapsed += pollInterval
-
-			statusReq, err := http.NewRequest("GET", statusURL, nil)
-			if err != nil {
-				continue
-			}
-
-			statusReq.Header.Set("User-Agent", a.getRandomUserAgent())
-
-			statusResp, err := a.client.Do(statusReq)
-			if err != nil {
-				fmt.Printf("\rStatus check failed, retrying...")
-				continue
-			}
-
-			if statusResp.StatusCode != 200 {
-				statusResp.Body.Close()
-				fmt.Printf("\rStatus check failed (status %d), retrying...", statusResp.StatusCode)
-				continue
-			}
-
-			var status DoubleDoubleStatusResponse
-			if err := json.NewDecoder(statusResp.Body).Decode(&status); err != nil {
-				statusResp.Body.Close()
-				fmt.Printf("\rInvalid JSON response, retrying...")
-				continue
-			}
-			statusResp.Body.Close()
-
-			if status.Status == "done" {
-				fmt.Println("\nDownload ready!")
-
-				// Build download URL
-				fileURL := status.URL
-				if strings.HasPrefix(fileURL, "./") {
-					fileURL = fmt.Sprintf("%s/%s", baseURL, fileURL[2:])
-				} else if strings.HasPrefix(fileURL, "/") {
-					fileURL = fmt.Sprintf("%s%s", baseURL, fileURL)
-				}
-
-				trackName := status.Current.Name
-				artist := status.Current.Artist
-
-				fmt.Printf("Downloading: %s - %s\n", artist, trackName)
-
-				// Download file
-				downloadReq, err := http.NewRequest("GET", fileURL, nil)
-				if err != nil {
-					lastError = fmt.Errorf("failed to create download request: %w", err)
-					break
-				}
-
-				downloadReq.Header.Set("User-Agent", a.getRandomUserAgent())
-
-				fileResp, err := a.client.Do(downloadReq)
-				if err != nil {
-					lastError = fmt.Errorf("failed to download file: %w", err)
-					break
-				}
-				defer fileResp.Body.Close()
-
-				if fileResp.StatusCode != 200 {
-					lastError = fmt.Errorf("download failed with status %d", fileResp.StatusCode)
-					break
-				}
-
-				// Generate filename
-				fileName := fmt.Sprintf("%s - %s.flac", artist, trackName)
-				for _, char := range `<>:"/\|?*` {
-					fileName = strings.ReplaceAll(fileName, string(char), "")
-				}
-				fileName = strings.TrimSpace(fileName)
-
-				filePath := filepath.Join(outputDir, fileName)
-
-				// Save file
-				out, err := os.Create(filePath)
-				if err != nil {
-					lastError = fmt.Errorf("failed to create file: %w", err)
-					break
-				}
-				defer out.Close()
-
-				fmt.Println("Downloading...")
-				// Use progress writer to track download
-				pw := NewProgressWriter(out)
-				_, err = io.Copy(pw, fileResp.Body)
-				if err != nil {
-					out.Close()
-					return "", fmt.Errorf("failed to write file: %w", err)
-				}
-
-				// Print final size
-				fmt.Printf("\rDownloaded: %.2f MB (Complete)\n", float64(pw.GetTotal())/(1024*1024))
-				fmt.Println("Download complete!")
-				return filePath, nil
-
-			} else if status.Status == "error" {
-				errorMsg := status.FriendlyStatus
-				if errorMsg == "" {
-					errorMsg = "Unknown error"
-				}
-				lastError = fmt.Errorf("processing failed: %s", errorMsg)
-				break
-			} else {
-				// Still processing
-				friendlyStatus := status.FriendlyStatus
-				if friendlyStatus == "" {
-					friendlyStatus = status.Status
-				}
-				fmt.Printf("\r%s...", friendlyStatus)
-			}
-		}
-
-		if elapsed >= maxWait {
-			lastError = fmt.Errorf("download timeout")
-			fmt.Printf("\nError with %s region: %v\n", region, lastError)
-			continue
-		}
-
-		if lastError != nil {
-			fmt.Printf("\nError with %s region: %v\n", region, lastError)
-		}
+	asinRegex := regexp.MustCompile(`(B[0-9A-Z]{9})`)
+	asin := asinRegex.FindString(amazonURL)
+	if asin == "" {
+		return "", fmt.Errorf("failed to extract ASIN from URL: %s", amazonURL)
 	}
 
-	return "", fmt.Errorf("all regions failed. Last error: %v", lastError)
+	apiURL := fmt.Sprintf("https://amazon.afkarxyz.fun/api/track/%s", asin)
+	req, err := http.NewRequest("GET", apiURL, nil)
+	if err != nil {
+		return "", err
+	}
+	req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36")
+
+	fmt.Printf("Fetching from Amazon API (ASIN: %s)...\n", asin)
+	resp, err := a.client.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		return "", fmt.Errorf("Amazon API returned status %d", resp.StatusCode)
+	}
+
+	bodyBytes, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", err
+	}
+
+	var apiResp AmazonStreamResponse
+	if err := json.Unmarshal(bodyBytes, &apiResp); err != nil {
+		return "", fmt.Errorf("failed to decode response: %w", err)
+	}
+
+	if apiResp.StreamURL == "" {
+		return "", fmt.Errorf("no stream URL found in response")
+	}
+
+	downloadURL := apiResp.StreamURL
+	fileName := fmt.Sprintf("%s.m4a", asin)
+	filePath := filepath.Join(outputDir, fileName)
+
+	out, err := os.Create(filePath)
+	if err != nil {
+		return "", err
+	}
+	defer out.Close()
+
+	dlReq, _ := http.NewRequest("GET", downloadURL, nil)
+	dlReq.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36")
+
+	dlResp, err := a.client.Do(dlReq)
+	if err != nil {
+		return "", err
+	}
+	defer dlResp.Body.Close()
+
+	fmt.Printf("Downloading track: %s\n", fileName)
+	pw := NewProgressWriter(out)
+	_, err = io.Copy(pw, dlResp.Body)
+	if err != nil {
+		out.Close()
+		os.Remove(filePath)
+		return "", err
+	}
+
+	fmt.Printf("\rDownloaded: %.2f MB (Complete)\n", float64(pw.GetTotal())/(1024*1024))
+
+	if apiResp.DecryptionKey != "" {
+		fmt.Printf("Decrypting file...\n")
+
+		ffprobePath, err := GetFFprobePath()
+		var codec string
+		if err == nil {
+			cmdProbe := exec.Command(ffprobePath,
+				"-v", "quiet",
+				"-select_streams", "a:0",
+				"-show_entries", "stream=codec_name",
+				"-of", "default=noprint_wrappers=1:nokey=1",
+				filePath,
+			)
+			setHideWindow(cmdProbe)
+			codecOutput, _ := cmdProbe.Output()
+			codec = strings.TrimSpace(string(codecOutput))
+			fmt.Printf("Detected codec: %s\n", codec)
+		}
+
+		targetExt := ".m4a"
+		if codec == "flac" {
+			targetExt = ".flac"
+		}
+
+		decryptedFilename := "dec_" + fileName + targetExt
+
+		if targetExt == ".flac" && strings.HasSuffix(fileName, ".m4a") {
+			decryptedFilename = "dec_" + strings.TrimSuffix(fileName, ".m4a") + ".flac"
+		}
+
+		decryptedPath := filepath.Join(outputDir, decryptedFilename)
+
+		ffmpegPath, err := GetFFmpegPath()
+		if err != nil {
+			return "", fmt.Errorf("ffmpeg not found for decryption: %w", err)
+		}
+
+		if err := ValidateExecutable(ffmpegPath); err != nil {
+			return "", fmt.Errorf("invalid ffmpeg executable: %w", err)
+		}
+
+		key := strings.TrimSpace(apiResp.DecryptionKey)
+
+		cmd := exec.Command(ffmpegPath,
+			"-decryption_key", key,
+			"-i", filePath,
+			"-c", "copy",
+			"-y",
+			decryptedPath,
+		)
+
+		setHideWindow(cmd)
+		output, err := cmd.CombinedOutput()
+		if err != nil {
+
+			outStr := string(output)
+			if len(outStr) > 500 {
+				outStr = outStr[len(outStr)-500:]
+			}
+			return "", fmt.Errorf("ffmpeg decryption failed: %v\nTail Output: %s", err, outStr)
+		}
+
+		if info, err := os.Stat(decryptedPath); err != nil || info.Size() == 0 {
+			return "", fmt.Errorf("decrypted file missing or empty")
+		}
+
+		if err := os.Remove(filePath); err != nil {
+			fmt.Printf("Warning: Failed to remove encrypted file: %v\n", err)
+		}
+
+		finalPath := filepath.Join(outputDir, strings.TrimPrefix(decryptedFilename, "dec_"))
+		if err := os.Rename(decryptedPath, finalPath); err != nil {
+			return "", fmt.Errorf("failed to rename decrypted file: %w", err)
+		}
+		filePath = finalPath
+
+		fmt.Println("Decryption successful")
+	}
+
+	return filePath, nil
 }
 
-func (a *AmazonDownloader) DownloadByURL(amazonURL, outputDir, filenameFormat string, includeTrackNumber bool, position int, spotifyTrackName, spotifyArtistName, spotifyAlbumName, spotifyAlbumArtist, spotifyReleaseDate, spotifyCoverURL, spotifyISRC string, spotifyTrackNumber, spotifyDiscNumber, spotifyTotalTracks int, embedMaxQualityCover bool) (string, error) {
-	// Create output directory if needed
+func (a *AmazonDownloader) DownloadFromService(amazonURL, outputDir, quality string) (string, error) {
+	return a.DownloadFromAfkarXYZ(amazonURL, outputDir, quality)
+}
+
+func (a *AmazonDownloader) DownloadByURL(amazonURL, outputDir, quality, filenameFormat, playlistName, playlistOwner string, includeTrackNumber bool, position int, spotifyTrackName, spotifyArtistName, spotifyAlbumName, spotifyAlbumArtist, spotifyReleaseDate, spotifyCoverURL string, spotifyTrackNumber, spotifyDiscNumber, spotifyTotalTracks int, embedMaxQualityCover bool, spotifyTotalDiscs int, spotifyCopyright, spotifyPublisher, spotifyURL string, useFirstArtistOnly bool) (string, error) {
+
 	if outputDir != "." {
 		if err := os.MkdirAll(outputDir, 0755); err != nil {
 			return "", fmt.Errorf("failed to create output directory: %w", err)
 		}
 	}
 
-	// Check if file with expected name already exists (Amazon doesn't provide ISRC before download)
 	if spotifyTrackName != "" && spotifyArtistName != "" {
-		expectedFilename := BuildExpectedFilename(spotifyTrackName, spotifyArtistName, spotifyAlbumName, spotifyAlbumArtist, spotifyReleaseDate, filenameFormat, includeTrackNumber, position, spotifyDiscNumber, false)
+		filenameArtist := spotifyArtistName
+		filenameAlbumArtist := spotifyAlbumArtist
+		if useFirstArtistOnly {
+			filenameArtist = GetFirstArtist(spotifyArtistName)
+			filenameAlbumArtist = GetFirstArtist(spotifyAlbumArtist)
+		}
+		expectedFilename := BuildExpectedFilename(spotifyTrackName, filenameArtist, spotifyAlbumName, filenameAlbumArtist, spotifyReleaseDate, filenameFormat, playlistName, playlistOwner, includeTrackNumber, position, spotifyDiscNumber, false)
 		expectedPath := filepath.Join(outputDir, expectedFilename)
 
 		if fileInfo, err := os.Stat(expectedPath); err == nil && fileInfo.Size() > 0 {
@@ -391,31 +285,60 @@ func (a *AmazonDownloader) DownloadByURL(amazonURL, outputDir, filenameFormat st
 		}
 	}
 
+	isrcChan := make(chan string, 1)
+	if spotifyURL != "" {
+		go func() {
+			var isrc string
+			parts := strings.Split(spotifyURL, "/")
+			if len(parts) > 0 {
+				sID := strings.Split(parts[len(parts)-1], "?")[0]
+				if sID != "" {
+					client := NewSongLinkClient()
+					if val, err := client.GetISRC(sID); err == nil {
+						isrc = val
+					}
+				}
+			}
+			isrcChan <- isrc
+		}()
+	} else {
+		close(isrcChan)
+	}
+
 	fmt.Printf("Using Amazon URL: %s\n", amazonURL)
 
-	// Download from service
-	filePath, err := a.DownloadFromService(amazonURL, outputDir)
+	filePath, err := a.DownloadFromService(amazonURL, outputDir, quality)
 	if err != nil {
 		return "", err
 	}
 
-	// Rename file based on Spotify metadata
+	var isrc string
+	if spotifyURL != "" {
+		isrc = <-isrcChan
+	}
+
+	originalFileDir := filepath.Dir(filePath)
+	originalFileBase := strings.TrimSuffix(filepath.Base(filePath), filepath.Ext(filePath))
+
 	if spotifyTrackName != "" && spotifyArtistName != "" {
 		safeArtist := sanitizeFilename(spotifyArtistName)
-		safeTitle := sanitizeFilename(spotifyTrackName)
-		safeAlbum := sanitizeFilename(spotifyAlbumName)
 		safeAlbumArtist := sanitizeFilename(spotifyAlbumArtist)
 
-		// Extract year from release date
+		if useFirstArtistOnly {
+			safeArtist = sanitizeFilename(GetFirstArtist(spotifyArtistName))
+			safeAlbumArtist = sanitizeFilename(GetFirstArtist(spotifyAlbumArtist))
+		}
+
+		safeTitle := sanitizeFilename(spotifyTrackName)
+		safeAlbum := sanitizeFilename(spotifyAlbumName)
+
 		year := ""
 		if len(spotifyReleaseDate) >= 4 {
 			year = spotifyReleaseDate[:4]
 		}
 
-		// Build filename based on format settings
 		var newFilename string
 
-		// Check if format is a template (contains {})
 		if strings.Contains(filenameFormat, "{") {
 			newFilename = filenameFormat
 			newFilename = strings.ReplaceAll(newFilename, "{title}", safeTitle)
@@ -424,43 +347,43 @@ func (a *AmazonDownloader) DownloadByURL(amazonURL, outputDir, filenameFormat st
 			newFilename = strings.ReplaceAll(newFilename, "{album_artist}", safeAlbumArtist)
 			newFilename = strings.ReplaceAll(newFilename, "{year}", year)
 
-			// Handle disc number
 			if spotifyDiscNumber > 0 {
 				newFilename = strings.ReplaceAll(newFilename, "{disc}", fmt.Sprintf("%d", spotifyDiscNumber))
 			} else {
 				newFilename = strings.ReplaceAll(newFilename, "{disc}", "")
 			}
 
-			// Handle track number - if position is 0, remove {track} and surrounding separators
 			if position > 0 {
 				newFilename = strings.ReplaceAll(newFilename, "{track}", fmt.Sprintf("%02d", position))
 			} else {
-				// Remove {track} with common separators
+
 				newFilename = regexp.MustCompile(`\{track\}\.\s*`).ReplaceAllString(newFilename, "")
 				newFilename = regexp.MustCompile(`\{track\}\s*-\s*`).ReplaceAllString(newFilename, "")
 				newFilename = regexp.MustCompile(`\{track\}\s*`).ReplaceAllString(newFilename, "")
 			}
 		} else {
-			// Legacy format support
+
 			switch filenameFormat {
 			case "artist-title":
 				newFilename = fmt.Sprintf("%s - %s", safeArtist, safeTitle)
 			case "title":
 				newFilename = safeTitle
-			default: // "title-artist"
+			default:
 				newFilename = fmt.Sprintf("%s - %s", safeTitle, safeArtist)
 			}
 
-			// Add track number prefix if enabled (legacy behavior)
 			if includeTrackNumber && position > 0 {
 				newFilename = fmt.Sprintf("%02d. %s", position, newFilename)
 			}
 		}
 
-		newFilename = newFilename + ".flac"
+		ext := filepath.Ext(filePath)
+		if ext == "" {
+			ext = ".flac"
+		}
+		newFilename = newFilename + ext
 		newFilePath := filepath.Join(outputDir, newFilename)
 
-		// Rename file
 		if err := os.Rename(filePath, newFilePath); err != nil {
 			fmt.Printf("Warning: Failed to rename file: %v\n", err)
 		} else {
@@ -469,11 +392,10 @@ func (a *AmazonDownloader) DownloadByURL(amazonURL, outputDir, filenameFormat st
 		}
 	}
 
-	// Embed Spotify metadata (replace Amazon's embedded metadata)
 	fmt.Println("Embedding Spotify metadata...")
 
 	coverPath := ""
-	// Download Spotify cover (with max resolution if enabled)
+
 	if spotifyCoverURL != "" {
 		coverPath = filePath + ".cover.jpg"
 		coverClient := NewCoverClient()
@@ -486,47 +408,59 @@ func (a *AmazonDownloader) DownloadByURL(amazonURL, outputDir, filenameFormat st
 		}
 	}
 
-	// Determine track number to embed
-	// Use Spotify track number (album track number) if available, otherwise use position
 	trackNumberToEmbed := spotifyTrackNumber
 	if trackNumberToEmbed == 0 {
-		trackNumberToEmbed = position // Fallback to playlist position
-	}
-	if trackNumberToEmbed == 0 {
-		trackNumberToEmbed = 1 // Default to track 1 for single track downloads without track number
+		trackNumberToEmbed = 1
 	}
 
-	// Build metadata from Spotify
 	metadata := Metadata{
 		Title:       spotifyTrackName,
 		Artist:      spotifyArtistName,
 		Album:       spotifyAlbumName,
 		AlbumArtist: spotifyAlbumArtist,
-		Date:        spotifyReleaseDate, // Recorded date (full date YYYY-MM-DD)
+		Date:        spotifyReleaseDate,
 		TrackNumber: trackNumberToEmbed,
-		TotalTracks: spotifyTotalTracks, // Total tracks in album from Spotify
-		DiscNumber:  spotifyDiscNumber,  // Disc number from Spotify
-		ISRC:        spotifyISRC,        // Use ISRC from Spotify
+		TotalTracks: spotifyTotalTracks,
+		DiscNumber:  spotifyDiscNumber,
+		TotalDiscs:  spotifyTotalDiscs,
+		URL:         spotifyURL,
+		Copyright:   spotifyCopyright,
+		Publisher:   spotifyPublisher,
 		Description: "https://github.com/afkarxyz/SpotiFLAC",
+		ISRC:        isrc,
 	}
 
-	if err := EmbedMetadata(filePath, metadata, coverPath); err != nil {
+	if err := EmbedMetadataToConvertedFile(filePath, metadata, coverPath); err != nil {
 		fmt.Printf("Warning: Failed to embed metadata: %v\n", err)
 	} else {
 		fmt.Println("Metadata embedded successfully")
 	}
 
+	if strings.HasSuffix(strings.ToLower(filePath), ".flac") {
+
+		originalM4aPath := filepath.Join(originalFileDir, originalFileBase+".m4a")
+		if _, err := os.Stat(originalM4aPath); err == nil {
+			if err := os.Remove(originalM4aPath); err != nil {
+				fmt.Printf("Warning: Failed to remove M4A file: %v\n", err)
+			} else {
+				fmt.Printf("Cleaned up original M4A file: %s\n", filepath.Base(originalM4aPath))
+			}
+		}
+	}
+
 	fmt.Println("Done")
 	fmt.Println("✓ Downloaded successfully from Amazon Music")
 	return filePath, nil
 }
 
-func (a *AmazonDownloader) DownloadBySpotifyID(spotifyTrackID, outputDir, filenameFormat string, includeTrackNumber bool, position int, spotifyTrackName, spotifyArtistName, spotifyAlbumName, spotifyAlbumArtist, spotifyReleaseDate, spotifyCoverURL, spotifyISRC string, spotifyTrackNumber, spotifyDiscNumber, spotifyTotalTracks int, embedMaxQualityCover bool) (string, error) {
-	// Get Amazon URL from Spotify track ID
+func (a *AmazonDownloader) DownloadBySpotifyID(spotifyTrackID, outputDir, quality, filenameFormat, playlistName, playlistOwner string, includeTrackNumber bool, position int, spotifyTrackName, spotifyArtistName, spotifyAlbumName, spotifyAlbumArtist, spotifyReleaseDate, spotifyCoverURL string, spotifyTrackNumber, spotifyDiscNumber, spotifyTotalTracks int, embedMaxQualityCover bool, spotifyTotalDiscs int, spotifyCopyright, spotifyPublisher, spotifyURL string,
+	useFirstArtistOnly bool,
+) (string, error) {
+
 	amazonURL, err := a.GetAmazonURLFromSpotify(spotifyTrackID)
 	if err != nil {
 		return "", err
 	}
 
-	return a.DownloadByURL(amazonURL, outputDir, filenameFormat, includeTrackNumber, position, spotifyTrackName, spotifyArtistName, spotifyAlbumName, spotifyAlbumArtist, spotifyReleaseDate, spotifyCoverURL, spotifyISRC, spotifyTrackNumber, spotifyDiscNumber, spotifyTotalTracks, embedMaxQualityCover)
+	return a.DownloadByURL(amazonURL, outputDir, quality, filenameFormat, playlistName, playlistOwner, includeTrackNumber, position, spotifyTrackName, spotifyArtistName, spotifyAlbumName, spotifyAlbumArtist, spotifyReleaseDate, spotifyCoverURL, spotifyTrackNumber, spotifyDiscNumber, spotifyTotalTracks, embedMaxQualityCover, spotifyTotalDiscs, spotifyCopyright, spotifyPublisher, spotifyURL, useFirstArtistOnly)
 }

backend/analysis.go

@@ -9,7 +9,6 @@ import (
 	mewflac "github.com/mewkiz/flac"
 )
 
-// AnalysisResult contains the audio analysis data
 type AnalysisResult struct {
 	FilePath      string        `json:"file_path"`
 	FileSize      int64         `json:"file_size"`
@@ -25,19 +24,16 @@ type AnalysisResult struct {
 	Spectrum      *SpectrumData `json:"spectrum,omitempty"`
 }
 
-// AnalyzeTrack performs audio analysis on a FLAC file
 func AnalyzeTrack(filepath string) (*AnalysisResult, error) {
 	if !fileExists(filepath) {
 		return nil, fmt.Errorf("file does not exist: %s", filepath)
 	}
 
-	// Get file size
 	fileInfo, err := os.Stat(filepath)
 	if err != nil {
 		return nil, fmt.Errorf("failed to get file info: %w", err)
 	}
 
-	// Parse FLAC file
 	f, err := flac.ParseFile(filepath)
 	if err != nil {
 		return nil, fmt.Errorf("failed to parse FLAC file: %w", err)
@@ -48,68 +44,55 @@ func AnalyzeTrack(filepath string) (*AnalysisResult, error) {
 		FileSize: fileInfo.Size(),
 	}
 
-	// Extract basic audio properties from STREAMINFO block
 	if len(f.Meta) > 0 {
 		streamInfo := f.Meta[0]
 		if streamInfo.Type == flac.StreamInfo {
-			// Read STREAMINFO data
+
 			data := streamInfo.Data
 			if len(data) >= 18 {
-				// Sample rate (bits 10-29 of bytes 10-13)
+
 				result.SampleRate = uint32(data[10])<<12 | uint32(data[11])<<4 | uint32(data[12])>>4
 
-				// Channels (bits 30-32 of byte 12)
 				result.Channels = ((data[12] >> 1) & 0x07) + 1
 
-				// Bits per sample (bits 33-37 of bytes 12-13)
 				result.BitsPerSample = ((data[12]&0x01)<<4 | data[13]>>4) + 1
 
-				// Total samples (bits 38-73 of bytes 13-17)
 				result.TotalSamples = uint64(data[13]&0x0F)<<32 |
 					uint64(data[14])<<24 |
 					uint64(data[15])<<16 |
 					uint64(data[16])<<8 |
 					uint64(data[17])
 
-				// Calculate duration
 				if result.SampleRate > 0 {
 					result.Duration = float64(result.TotalSamples) / float64(result.SampleRate)
 				}
 
-				// Read min/max frame size and block size for additional analysis
-				// Min block size (bytes 0-1)
-				// Max block size (bytes 2-3)
-				// These can give us hints about encoding quality
 			}
 		}
 	}
 
-	// Analyze spectrum and calculate real audio metrics
 	spectrum, err := AnalyzeSpectrum(filepath)
 	if err != nil {
-		// Log error but continue
+
 		fmt.Printf("Warning: failed to analyze spectrum: %v\n", err)
 	} else {
 		result.Spectrum = spectrum
-		// Calculate dynamic range, peak, and RMS from decoded samples
+
 		calculateRealAudioMetrics(result, filepath)
 	}
 
-	// Set bit depth
 	result.BitDepth = fmt.Sprintf("%d-bit", result.BitsPerSample)
 
 	return result, nil
 }
 
-// calculateRealAudioMetrics calculates actual dynamic range, peak, and RMS from decoded audio
 func calculateRealAudioMetrics(result *AnalysisResult, filepath string) {
-	// Decode FLAC to get actual samples
+
 	samples, err := decodeFLACForMetrics(filepath)
 	if err != nil {
 		return
 	}
 
-	// Calculate peak amplitude
 	var peak float64
 	var sumSquares float64
 
@@ -124,20 +107,16 @@ func calculateRealAudioMetrics(result *AnalysisResult, filepath string) {
 		sumSquares += sample * sample
 	}
 
-	// Convert peak to dB (reference: 1.0 = 0 dBFS)
 	peakDB := 20.0 * math.Log10(peak)
 	result.PeakAmplitude = peakDB
 
-	// Calculate RMS (Root Mean Square)
 	rms := math.Sqrt(sumSquares / float64(len(samples)))
 	rmsDB := 20.0 * math.Log10(rms)
 	result.RMSLevel = rmsDB
 
-	// Dynamic range is the difference between peak and RMS
 	result.DynamicRange = peakDB - rmsDB
 }
 
-// decodeFLACForMetrics decodes FLAC file and returns normalized samples for metric calculation
 func decodeFLACForMetrics(filepath string) ([]float64, error) {
 	stream, err := mewflac.ParseFile(filepath)
 	if err != nil {
@@ -145,24 +124,20 @@ func decodeFLACForMetrics(filepath string) ([]float64, error) {
 	}
 	defer stream.Close()
 
-	// Limit samples to prevent memory issues (10 million samples = ~3.8 minutes at 44.1kHz)
 	maxSamples := 10000000
 	samples := make([]float64, 0, maxSamples)
 
-	// Read all audio frames
 	for {
 		frame, err := stream.ParseNext()
 		if err != nil {
 			break
 		}
 
-		// Get samples from first channel (mono or left channel)
 		var channelSamples []int32
 		if len(frame.Subframes) > 0 {
 			channelSamples = frame.Subframes[0].Samples
 		}
 
-		// Normalize samples to -1.0 to 1.0 range
 		maxVal := float64(int64(1) << (stream.Info.BitsPerSample - 1))
 		for _, sample := range channelSamples {
 			if len(samples) >= maxSamples {
@@ -187,3 +162,46 @@ func GetFileSize(filepath string) (int64, error) {
 	}
 	return info.Size(), nil
 }
+
+func GetTrackMetadata(filepath string) (*AnalysisResult, error) {
+	if !fileExists(filepath) {
+		return nil, fmt.Errorf("file does not exist: %s", filepath)
+	}
+
+	fileInfo, err := os.Stat(filepath)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get file info: %w", err)
+	}
+
+	f, err := flac.ParseFile(filepath)
+	if err != nil {
+		return nil, fmt.Errorf("failed to parse FLAC file: %w", err)
+	}
+
+	result := &AnalysisResult{
+		FilePath: filepath,
+		FileSize: fileInfo.Size(),
+	}
+
+	if len(f.Meta) > 0 {
+		streamInfo := f.Meta[0]
+		if streamInfo.Type == flac.StreamInfo {
+			data := streamInfo.Data
+			if len(data) >= 18 {
+				result.SampleRate = uint32(data[10])<<12 | uint32(data[11])<<4 | uint32(data[12])>>4
+				result.BitsPerSample = ((data[12]&0x01)<<4 | data[13]>>4) + 1
+				result.TotalSamples = uint64(data[13]&0x0F)<<32 |
+					uint64(data[14])<<24 |
+					uint64(data[15])<<16 |
+					uint64(data[16])<<8 |
+					uint64(data[17])
+
+				if result.SampleRate > 0 {
+					result.Duration = float64(result.TotalSamples) / float64(result.SampleRate)
+				}
+			}
+		}
+	}
+	result.BitDepth = fmt.Sprintf("%d-bit", result.BitsPerSample)
+	return result, nil
+}

backend/config.go

@@ -6,13 +6,12 @@ import (
 )
 
 func GetDefaultMusicPath() string {
-	// Get user's home directory
+
 	homeDir, err := os.UserHomeDir()
 	if err != nil {
-		// Fallback to Public Music if can't get home dir
+
 		return "C:\\Users\\Public\\Music"
 	}
 
-	// Return path to user's Music folder
 	return filepath.Join(homeDir, "Music")
 }

backend/cover.go

@@ -12,12 +12,11 @@ import (
 )
 
 const (
-	// Spotify image size codes
-	spotifySize640 = "ab67616d0000b273" // 640x640
-	spotifySizeMax = "ab67616d000082c1" // Max resolution
+	spotifySize300 = "ab67616d00001e02"
+	spotifySize640 = "ab67616d0000b273"
+	spotifySizeMax = "ab67616d000082c1"
 )
 
-// CoverDownloadRequest represents a request to download cover art
 type CoverDownloadRequest struct {
 	CoverURL       string `json:"cover_url"`
 	TrackName      string `json:"track_name"`
@@ -32,7 +31,6 @@ type CoverDownloadRequest struct {
 	DiscNumber     int    `json:"disc_number"`
 }
 
-// CoverDownloadResponse represents the response from cover download
 type CoverDownloadResponse struct {
 	Success       bool   `json:"success"`
 	Message       string `json:"message"`
@@ -41,26 +39,36 @@ type CoverDownloadResponse struct {
 	AlreadyExists bool   `json:"already_exists,omitempty"`
 }
 
-// CoverClient handles cover art downloading
+type HeaderDownloadRequest struct {
+	HeaderURL  string `json:"header_url"`
+	ArtistName string `json:"artist_name"`
+	OutputDir  string `json:"output_dir"`
+}
+
+type HeaderDownloadResponse struct {
+	Success       bool   `json:"success"`
+	Message       string `json:"message"`
+	File          string `json:"file,omitempty"`
+	Error         string `json:"error,omitempty"`
+	AlreadyExists bool   `json:"already_exists,omitempty"`
+}
+
 type CoverClient struct {
 	httpClient *http.Client
 }
 
-// NewCoverClient creates a new cover client
 func NewCoverClient() *CoverClient {
 	return &CoverClient{
 		httpClient: &http.Client{Timeout: 30 * time.Second},
 	}
 }
 
-// buildCoverFilename builds the cover filename based on settings (same as track filename)
 func buildCoverFilename(trackName, artistName, albumName, albumArtist, releaseDate, filenameFormat string, includeTrackNumber bool, position, discNumber int) string {
 	safeTitle := sanitizeFilename(trackName)
 	safeArtist := sanitizeFilename(artistName)
 	safeAlbum := sanitizeFilename(albumName)
 	safeAlbumArtist := sanitizeFilename(albumArtist)
 
-	// Extract year from release date (format: YYYY-MM-DD or YYYY)
 	year := ""
 	if len(releaseDate) >= 4 {
 		year = releaseDate[:4]
@@ -68,7 +76,6 @@ func buildCoverFilename(trackName, artistName, albumName, albumArtist, releaseDa
 
 	var filename string
 
-	// Check if format is a template (contains {})
 	if strings.Contains(filenameFormat, "{") {
 		filename = filenameFormat
 		filename = strings.ReplaceAll(filename, "{title}", safeTitle)
@@ -77,72 +84,67 @@ func buildCoverFilename(trackName, artistName, albumName, albumArtist, releaseDa
 		filename = strings.ReplaceAll(filename, "{album_artist}", safeAlbumArtist)
 		filename = strings.ReplaceAll(filename, "{year}", year)
 
-		// Handle disc number
 		if discNumber > 0 {
 			filename = strings.ReplaceAll(filename, "{disc}", fmt.Sprintf("%d", discNumber))
 		} else {
 			filename = strings.ReplaceAll(filename, "{disc}", "")
 		}
 
-		// Handle track number - if position is 0, remove {track} and surrounding separators
 		if position > 0 {
 			filename = strings.ReplaceAll(filename, "{track}", fmt.Sprintf("%02d", position))
 		} else {
-			// Remove {track} with common separators
+
 			filename = regexp.MustCompile(`\{track\}\.\s*`).ReplaceAllString(filename, "")
 			filename = regexp.MustCompile(`\{track\}\s*-\s*`).ReplaceAllString(filename, "")
 			filename = regexp.MustCompile(`\{track\}\s*`).ReplaceAllString(filename, "")
 		}
 	} else {
-		// Legacy format support
+
 		switch filenameFormat {
 		case "artist-title":
 			filename = fmt.Sprintf("%s - %s", safeArtist, safeTitle)
+		case "title-artist":
+			filename = fmt.Sprintf("%s - %s", safeTitle, safeArtist)
 		case "title":
 			filename = safeTitle
-		default: // "title-artist"
+		default:
 			filename = fmt.Sprintf("%s - %s", safeTitle, safeArtist)
 		}
 
-		// Add track number prefix if enabled (legacy behavior)
 		if includeTrackNumber && position > 0 {
-			filename = fmt.Sprintf("%02d. %s", position, filename)
+			filename = fmt.Sprintf("%02d - %s", position, filename)
 		}
 	}
 
-	return filename + ".jpg"
+	return filename + ".cover.jpg"
 }
 
-// getMaxResolutionURL converts a Spotify cover URL to max resolution
-// Falls back to original URL if max resolution is not available
-func (c *CoverClient) getMaxResolutionURL(coverURL string) string {
-	// Try to convert to max resolution
-	if strings.Contains(coverURL, spotifySize640) {
-		maxURL := strings.Replace(coverURL, spotifySize640, spotifySizeMax, 1)
-		// Check if max resolution URL is available
-		resp, err := c.httpClient.Head(maxURL)
-		if err == nil && resp.StatusCode == http.StatusOK {
-			return maxURL
-		}
+func convertSmallToMedium(imageURL string) string {
+	if strings.Contains(imageURL, spotifySize300) {
+		return strings.Replace(imageURL, spotifySize300, spotifySize640, 1)
 	}
-	// Return original URL as fallback
-	return coverURL
+	return imageURL
+}
+
+func (c *CoverClient) getMaxResolutionURL(imageURL string) string {
+
+	mediumURL := convertSmallToMedium(imageURL)
+	if strings.Contains(mediumURL, spotifySize640) {
+		return strings.Replace(mediumURL, spotifySize640, spotifySizeMax, 1)
+	}
+	return mediumURL
 }
 
-// DownloadCoverToPath downloads cover art from URL to a specific path
-// If embedMaxQualityCover is true, it will try to get max resolution
 func (c *CoverClient) DownloadCoverToPath(coverURL, outputPath string, embedMaxQualityCover bool) error {
 	if coverURL == "" {
 		return fmt.Errorf("cover URL is required")
 	}
 
-	// Use max quality URL if setting is enabled
-	downloadURL := coverURL
+	downloadURL := convertSmallToMedium(coverURL)
 	if embedMaxQualityCover {
-		downloadURL = c.getMaxResolutionURL(coverURL)
+		downloadURL = c.getMaxResolutionURL(downloadURL)
 	}
 
-	// Download cover image
 	resp, err := c.httpClient.Get(downloadURL)
 	if err != nil {
 		return fmt.Errorf("failed to download cover: %v", err)
@@ -153,14 +155,12 @@ func (c *CoverClient) DownloadCoverToPath(coverURL, outputPath string, embedMaxQ
 		return fmt.Errorf("failed to download cover: HTTP %d", resp.StatusCode)
 	}
 
-	// Create file
 	file, err := os.Create(outputPath)
 	if err != nil {
 		return fmt.Errorf("failed to create file: %v", err)
 	}
 	defer file.Close()
 
-	// Write content to file
 	_, err = io.Copy(file, resp.Body)
 	if err != nil {
 		return fmt.Errorf("failed to write cover file: %v", err)
@@ -169,7 +169,6 @@ func (c *CoverClient) DownloadCoverToPath(coverURL, outputPath string, embedMaxQ
 	return nil
 }
 
-// DownloadCover downloads cover art for a single track
 func (c *CoverClient) DownloadCover(req CoverDownloadRequest) (*CoverDownloadResponse, error) {
 	if req.CoverURL == "" {
 		return &CoverDownloadResponse{
@@ -178,7 +177,6 @@ func (c *CoverClient) DownloadCover(req CoverDownloadRequest) (*CoverDownloadRes
 		}, fmt.Errorf("cover URL is required")
 	}
 
-	// Create output directory if it doesn't exist
 	outputDir := req.OutputDir
 	if outputDir == "" {
 		outputDir = GetDefaultMusicPath()
@@ -193,15 +191,13 @@ func (c *CoverClient) DownloadCover(req CoverDownloadRequest) (*CoverDownloadRes
 		}, err
 	}
 
-	// Generate filename using same format as track
 	filenameFormat := req.FilenameFormat
 	if filenameFormat == "" {
-		filenameFormat = "title-artist" // default
+		filenameFormat = "title-artist"
 	}
 	filename := buildCoverFilename(req.TrackName, req.ArtistName, req.AlbumName, req.AlbumArtist, req.ReleaseDate, filenameFormat, req.TrackNumber, req.Position, req.DiscNumber)
 	filePath := filepath.Join(outputDir, filename)
 
-	// Check if file already exists
 	if fileInfo, err := os.Stat(filePath); err == nil && fileInfo.Size() > 0 {
 		return &CoverDownloadResponse{
 			Success:       true,
@@ -211,10 +207,8 @@ func (c *CoverClient) DownloadCover(req CoverDownloadRequest) (*CoverDownloadRes
 		}, nil
 	}
 
-	// Try to get max resolution URL, fallback to original
 	downloadURL := c.getMaxResolutionURL(req.CoverURL)
 
-	// Download cover image
 	resp, err := c.httpClient.Get(downloadURL)
 	if err != nil {
 		return &CoverDownloadResponse{
@@ -231,7 +225,6 @@ func (c *CoverClient) DownloadCover(req CoverDownloadRequest) (*CoverDownloadRes
 		}, fmt.Errorf("HTTP %d", resp.StatusCode)
 	}
 
-	// Create file
 	file, err := os.Create(filePath)
 	if err != nil {
 		return &CoverDownloadResponse{
@@ -241,7 +234,6 @@ func (c *CoverClient) DownloadCover(req CoverDownloadRequest) (*CoverDownloadRes
 	}
 	defer file.Close()
 
-	// Write content to file
 	_, err = io.Copy(file, resp.Body)
 	if err != nil {
 		return &CoverDownloadResponse{
@@ -256,3 +248,278 @@ func (c *CoverClient) DownloadCover(req CoverDownloadRequest) (*CoverDownloadRes
 		File:    filePath,
 	}, nil
 }
+
+func (c *CoverClient) DownloadHeader(req HeaderDownloadRequest) (*HeaderDownloadResponse, error) {
+	if req.HeaderURL == "" {
+		return &HeaderDownloadResponse{
+			Success: false,
+			Error:   "Header URL is required",
+		}, fmt.Errorf("header URL is required")
+	}
+
+	if req.ArtistName == "" {
+		return &HeaderDownloadResponse{
+			Success: false,
+			Error:   "Artist name is required",
+		}, fmt.Errorf("artist name is required")
+	}
+
+	outputDir := req.OutputDir
+	if outputDir == "" {
+		outputDir = GetDefaultMusicPath()
+	} else {
+		outputDir = NormalizePath(outputDir)
+	}
+
+	artistFolder := filepath.Join(outputDir, sanitizeFilename(req.ArtistName))
+	if err := os.MkdirAll(artistFolder, 0755); err != nil {
+		return &HeaderDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to create artist folder: %v", err),
+		}, err
+	}
+
+	filename := sanitizeFilename(req.ArtistName) + "_Header.jpg"
+	filePath := filepath.Join(artistFolder, filename)
+
+	if fileInfo, err := os.Stat(filePath); err == nil && fileInfo.Size() > 0 {
+		return &HeaderDownloadResponse{
+			Success:       true,
+			Message:       "Header file already exists",
+			File:          filePath,
+			AlreadyExists: true,
+		}, nil
+	}
+
+	resp, err := c.httpClient.Get(req.HeaderURL)
+	if err != nil {
+		return &HeaderDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to download header: %v", err),
+		}, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return &HeaderDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to download header: HTTP %d", resp.StatusCode),
+		}, fmt.Errorf("HTTP %d", resp.StatusCode)
+	}
+
+	file, err := os.Create(filePath)
+	if err != nil {
+		return &HeaderDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to create file: %v", err),
+		}, err
+	}
+	defer file.Close()
+
+	_, err = io.Copy(file, resp.Body)
+	if err != nil {
+		return &HeaderDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to write header file: %v", err),
+		}, err
+	}
+
+	return &HeaderDownloadResponse{
+		Success: true,
+		Message: "Header downloaded successfully",
+		File:    filePath,
+	}, nil
+}
+
+type GalleryImageDownloadRequest struct {
+	ImageURL   string `json:"image_url"`
+	ArtistName string `json:"artist_name"`
+	ImageIndex int    `json:"image_index"`
+	OutputDir  string `json:"output_dir"`
+}
+
+type GalleryImageDownloadResponse struct {
+	Success       bool   `json:"success"`
+	Message       string `json:"message"`
+	File          string `json:"file,omitempty"`
+	Error         string `json:"error,omitempty"`
+	AlreadyExists bool   `json:"already_exists,omitempty"`
+}
+
+func (c *CoverClient) DownloadGalleryImage(req GalleryImageDownloadRequest) (*GalleryImageDownloadResponse, error) {
+	if req.ImageURL == "" {
+		return &GalleryImageDownloadResponse{
+			Success: false,
+			Error:   "Image URL is required",
+		}, fmt.Errorf("image URL is required")
+	}
+
+	if req.ArtistName == "" {
+		return &GalleryImageDownloadResponse{
+			Success: false,
+			Error:   "Artist name is required",
+		}, fmt.Errorf("artist name is required")
+	}
+
+	outputDir := req.OutputDir
+	if outputDir == "" {
+		outputDir = GetDefaultMusicPath()
+	} else {
+		outputDir = NormalizePath(outputDir)
+	}
+
+	artistFolder := filepath.Join(outputDir, sanitizeFilename(req.ArtistName))
+	if err := os.MkdirAll(artistFolder, 0755); err != nil {
+		return &GalleryImageDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to create artist folder: %v", err),
+		}, err
+	}
+
+	filename := sanitizeFilename(req.ArtistName) + fmt.Sprintf("_Gallery_%d.jpg", req.ImageIndex+1)
+	filePath := filepath.Join(artistFolder, filename)
+
+	if fileInfo, err := os.Stat(filePath); err == nil && fileInfo.Size() > 0 {
+		return &GalleryImageDownloadResponse{
+			Success:       true,
+			Message:       "Gallery image file already exists",
+			File:          filePath,
+			AlreadyExists: true,
+		}, nil
+	}
+
+	resp, err := c.httpClient.Get(req.ImageURL)
+	if err != nil {
+		return &GalleryImageDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to download gallery image: %v", err),
+		}, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return &GalleryImageDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to download gallery image: HTTP %d", resp.StatusCode),
+		}, fmt.Errorf("HTTP %d", resp.StatusCode)
+	}
+
+	file, err := os.Create(filePath)
+	if err != nil {
+		return &GalleryImageDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to create file: %v", err),
+		}, err
+	}
+	defer file.Close()
+
+	_, err = io.Copy(file, resp.Body)
+	if err != nil {
+		return &GalleryImageDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to write gallery image file: %v", err),
+		}, err
+	}
+
+	return &GalleryImageDownloadResponse{
+		Success: true,
+		Message: "Gallery image downloaded successfully",
+		File:    filePath,
+	}, nil
+}
+
+type AvatarDownloadRequest struct {
+	AvatarURL  string `json:"avatar_url"`
+	ArtistName string `json:"artist_name"`
+	OutputDir  string `json:"output_dir"`
+}
+
+type AvatarDownloadResponse struct {
+	Success       bool   `json:"success"`
+	Message       string `json:"message"`
+	File          string `json:"file,omitempty"`
+	Error         string `json:"error,omitempty"`
+	AlreadyExists bool   `json:"already_exists,omitempty"`
+}
+
+func (c *CoverClient) DownloadAvatar(req AvatarDownloadRequest) (*AvatarDownloadResponse, error) {
+	if req.AvatarURL == "" {
+		return &AvatarDownloadResponse{
+			Success: false,
+			Error:   "Avatar URL is required",
+		}, fmt.Errorf("avatar URL is required")
+	}
+
+	if req.ArtistName == "" {
+		return &AvatarDownloadResponse{
+			Success: false,
+			Error:   "Artist name is required",
+		}, fmt.Errorf("artist name is required")
+	}
+
+	outputDir := req.OutputDir
+	if outputDir == "" {
+		outputDir = GetDefaultMusicPath()
+	} else {
+		outputDir = NormalizePath(outputDir)
+	}
+
+	artistFolder := filepath.Join(outputDir, sanitizeFilename(req.ArtistName))
+	if err := os.MkdirAll(artistFolder, 0755); err != nil {
+		return &AvatarDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to create artist folder: %v", err),
+		}, err
+	}
+
+	filename := sanitizeFilename(req.ArtistName) + "_Avatar.jpg"
+	filePath := filepath.Join(artistFolder, filename)
+
+	if fileInfo, err := os.Stat(filePath); err == nil && fileInfo.Size() > 0 {
+		return &AvatarDownloadResponse{
+			Success:       true,
+			Message:       "Avatar file already exists",
+			File:          filePath,
+			AlreadyExists: true,
+		}, nil
+	}
+
+	resp, err := c.httpClient.Get(req.AvatarURL)
+	if err != nil {
+		return &AvatarDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to download avatar: %v", err),
+		}, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return &AvatarDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to download avatar: HTTP %d", resp.StatusCode),
+		}, fmt.Errorf("HTTP %d", resp.StatusCode)
+	}
+
+	file, err := os.Create(filePath)
+	if err != nil {
+		return &AvatarDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to create file: %v", err),
+		}, err
+	}
+	defer file.Close()
+
+	_, err = io.Copy(file, resp.Body)
+	if err != nil {
+		return &AvatarDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to write avatar file: %v", err),
+		}, err
+	}
+
+	return &AvatarDownloadResponse{
+		Success: true,
+		Message: "Avatar downloaded successfully",
+		File:    filePath,
+	}, nil
+}

backend/ffmpeg.go

@@ -13,11 +13,11 @@ import (
 	"runtime"
 	"strings"
 	"sync"
+	"time"
 
 	"github.com/ulikunitz/xz"
 )
 
-// decodeBase64 decodes a base64 encoded string
 func decodeBase64(encoded string) (string, error) {
 	decoded, err := base64.StdEncoding.DecodeString(encoded)
 	if err != nil {
@@ -26,6 +26,45 @@ func decodeBase64(encoded string) (string, error) {
 	return string(decoded), nil
 }
 
+func ValidateExecutable(path string) error {
+	cleanedPath := filepath.Clean(path)
+	if cleanedPath == "" {
+		return fmt.Errorf("empty path")
+	}
+
+	if !filepath.IsAbs(cleanedPath) {
+		return fmt.Errorf("path must be absolute: %s", path)
+	}
+
+	info, err := os.Stat(cleanedPath)
+	if err != nil {
+		return fmt.Errorf("failed to stat file: %w", err)
+	}
+
+	if info.IsDir() {
+		return fmt.Errorf("path is a directory: %s", path)
+	}
+
+	if runtime.GOOS != "windows" {
+		if info.Mode()&0111 == 0 {
+			return fmt.Errorf("file is not executable: %s", path)
+		}
+	}
+
+	base := filepath.Base(cleanedPath)
+	validNames := map[string]bool{
+		"ffmpeg":      true,
+		"ffmpeg.exe":  true,
+		"ffprobe":     true,
+		"ffprobe.exe": true,
+	}
+	if !validNames[base] {
+		return fmt.Errorf("invalid executable name: %s", base)
+	}
+
+	return nil
+}
+
 const (
 	ffmpegWindowsURL = "aHR0cHM6Ly9naXRodWIuY29tL0J0Yk4vRkZtcGVnLUJ1aWxkcy9yZWxlYXNlcy9kb3dubG9hZC9sYXRlc3QvZmZtcGVnLW1hc3Rlci1sYXRlc3Qtd2luNjQtZ3BsLnppcA=="
 	ffmpegLinuxURL   = "aHR0cHM6Ly9naXRodWIuY29tL0J0Yk4vRkZtcGVnLUJ1aWxkcy9yZWxlYXNlcy9kb3dubG9hZC9sYXRlc3QvZmZtcGVnLW1hc3Rlci1sYXRlc3QtbGludXg2NC1ncGwudGFyLnh6"
@@ -33,7 +72,6 @@ const (
 	ffprobeMacOSURL  = "aHR0cHM6Ly9ldmVybWVldC5jeC9mZm1wZWcvZ2V0cmVsZWFzZS9mZnByb2JlL3ppcA=="
 )
 
-// GetFFmpegDir returns the directory where ffmpeg should be stored
 func GetFFmpegDir() (string, error) {
 	homeDir, err := os.UserHomeDir()
 	if err != nil {
@@ -42,7 +80,6 @@ func GetFFmpegDir() (string, error) {
 	return filepath.Join(homeDir, ".spotiflac"), nil
 }
 
-// GetFFmpegPath returns the full path to the ffmpeg executable
 func GetFFmpegPath() (string, error) {
 	ffmpegDir, err := GetFFmpegDir()
 	if err != nil {
@@ -54,10 +91,19 @@ func GetFFmpegPath() (string, error) {
 		ffmpegName = "ffmpeg.exe"
 	}
 
-	return filepath.Join(ffmpegDir, ffmpegName), nil
+	localPath := filepath.Join(ffmpegDir, ffmpegName)
+	if _, err := os.Stat(localPath); err == nil {
+		return localPath, nil
+	}
+
+	path, err := exec.LookPath(ffmpegName)
+	if err == nil {
+		return path, nil
+	}
+
+	return localPath, nil
 }
 
-// GetFFprobePath returns the full path to the ffprobe executable in app directory
 func GetFFprobePath() (string, error) {
 	ffmpegDir, err := GetFFmpegDir()
 	if err != nil {
@@ -69,70 +115,74 @@ func GetFFprobePath() (string, error) {
 		ffprobeName = "ffprobe.exe"
 	}
 
-	ffprobePath := filepath.Join(ffmpegDir, ffprobeName)
-	if _, err := os.Stat(ffprobePath); err == nil {
-		return ffprobePath, nil
+	localPath := filepath.Join(ffmpegDir, ffprobeName)
+	if _, err := os.Stat(localPath); err == nil {
+		return localPath, nil
 	}
 
-	return "", fmt.Errorf("ffprobe not found in app directory")
+	path, err := exec.LookPath(ffprobeName)
+	if err == nil {
+		return path, nil
+	}
+
+	return localPath, fmt.Errorf("ffprobe not found in app directory or system path")
 }
 
-// IsFFprobeInstalled checks if ffprobe is installed in the app directory
 func IsFFprobeInstalled() (bool, error) {
 	ffprobePath, err := GetFFprobePath()
 	if err != nil {
 		return false, nil
 	}
 
-	// Verify it's executable
+	if err := ValidateExecutable(ffprobePath); err != nil {
+		return false, nil
+	}
+
 	cmd := exec.Command(ffprobePath, "-version")
 	setHideWindow(cmd)
 	err = cmd.Run()
 	return err == nil, nil
 }
 
-// IsFFmpegInstalled checks if ffmpeg is installed in the app directory
 func IsFFmpegInstalled() (bool, error) {
 	ffmpegPath, err := GetFFmpegPath()
 	if err != nil {
 		return false, err
 	}
 
-	_, err = os.Stat(ffmpegPath)
-	if os.IsNotExist(err) {
+	if err := ValidateExecutable(ffmpegPath); err != nil {
 		return false, nil
 	}
-	if err != nil {
-		return false, err
-	}
 
-	// Verify it's executable
 	cmd := exec.Command(ffmpegPath, "-version")
-	// Hide console window on Windows
+
 	setHideWindow(cmd)
 	err = cmd.Run()
 	return err == nil, nil
 }
 
-// DownloadFFmpeg downloads and extracts ffmpeg to the app directory
 func DownloadFFmpeg(progressCallback func(int)) error {
+
+	SetDownloadProgress(0)
+	SetDownloadSpeed(0)
+	SetDownloading(true)
+	defer SetDownloading(false)
+
 	ffmpegDir, err := GetFFmpegDir()
 	if err != nil {
 		return err
 	}
 
-	// Create directory if it doesn't exist
 	if err := os.MkdirAll(ffmpegDir, 0755); err != nil {
 		return fmt.Errorf("failed to create ffmpeg directory: %w", err)
 	}
 
-	// For macOS, download ffmpeg and ffprobe separately (only if not already installed)
 	if runtime.GOOS == "darwin" {
 		ffmpegInstalled, _ := IsFFmpegInstalled()
 		ffprobeInstalled, _ := IsFFprobeInstalled()
 
 		if !ffmpegInstalled && !ffprobeInstalled {
-			// Download both
+
 			ffmpegURL, _ := decodeBase64(ffmpegMacOSURL)
 			fmt.Printf("[FFmpeg] Downloading ffmpeg from: %s\n", ffmpegURL)
 			if err := downloadAndExtract(ffmpegURL, ffmpegDir, progressCallback, 0, 50); err != nil {
@@ -145,14 +195,14 @@ func DownloadFFmpeg(progressCallback func(int)) error {
 				return fmt.Errorf("failed to download ffprobe: %w", err)
 			}
 		} else if !ffmpegInstalled {
-			// Only download ffmpeg
+
 			ffmpegURL, _ := decodeBase64(ffmpegMacOSURL)
 			fmt.Printf("[FFmpeg] Downloading ffmpeg from: %s\n", ffmpegURL)
 			if err := downloadAndExtract(ffmpegURL, ffmpegDir, progressCallback, 0, 100); err != nil {
 				return err
 			}
 		} else if !ffprobeInstalled {
-			// Only download ffprobe
+
 			ffprobeURL, _ := decodeBase64(ffprobeMacOSURL)
 			fmt.Printf("[FFmpeg] Downloading ffprobe from: %s\n", ffprobeURL)
 			if err := downloadAndExtract(ffprobeURL, ffmpegDir, progressCallback, 0, 100); err != nil {
@@ -162,7 +212,6 @@ func DownloadFFmpeg(progressCallback func(int)) error {
 		return nil
 	}
 
-	// For Windows/Linux: single archive contains both ffmpeg and ffprobe
 	var encodedURL string
 	switch runtime.GOOS {
 	case "windows":
@@ -173,7 +222,6 @@ func DownloadFFmpeg(progressCallback func(int)) error {
 		return fmt.Errorf("unsupported operating system: %s", runtime.GOOS)
 	}
 
-	// Decode URL
 	url, err := decodeBase64(encodedURL)
 	if err != nil {
 		return fmt.Errorf("failed to decode ffmpeg URL: %w", err)
@@ -188,9 +236,8 @@ func DownloadFFmpeg(progressCallback func(int)) error {
 	return nil
 }
 
-// downloadAndExtract downloads a file and extracts it
 func downloadAndExtract(url, destDir string, progressCallback func(int), progressStart, progressEnd int) error {
-	// Create temporary file for download
+
 	tmpFile, err := os.CreateTemp("", "ffmpeg-*")
 	if err != nil {
 		return fmt.Errorf("failed to create temp file: %w", err)
@@ -198,7 +245,6 @@ func downloadAndExtract(url, destDir string, progressCallback func(int), progres
 	defer os.Remove(tmpFile.Name())
 	defer tmpFile.Close()
 
-	// Download the file
 	resp, err := http.Get(url)
 	if err != nil {
 		return fmt.Errorf("failed to download: %w", err)
@@ -211,8 +257,16 @@ func downloadAndExtract(url, destDir string, progressCallback func(int), progres
 
 	totalSize := resp.ContentLength
 	var downloaded int64
+	lastTime := time.Now()
+	var lastBytes int64
+
+	if totalSize > 0 {
+		totalSizeMB := float64(totalSize) / (1024 * 1024)
+		fmt.Printf("[FFmpeg] Total size: %.2f MB\n", totalSizeMB)
+	} else {
+		fmt.Printf("[FFmpeg] Downloading... (size unknown)\n")
+	}
 
-	// Create a progress reader
 	buf := make([]byte, 32*1024)
 	for {
 		n, err := resp.Body.Read(buf)
@@ -222,12 +276,46 @@ func downloadAndExtract(url, destDir string, progressCallback func(int), progres
 				return fmt.Errorf("failed to write to temp file: %w", writeErr)
 			}
 			downloaded += int64(n)
+
+			mbDownloaded := float64(downloaded) / (1024 * 1024)
+			now := time.Now()
+			timeDiff := now.Sub(lastTime).Seconds()
+			var speedMBps float64
+
+			if timeDiff > 0.1 {
+				bytesDiff := float64(downloaded - lastBytes)
+				speedMBps = (bytesDiff / (1024 * 1024)) / timeDiff
+				lastTime = now
+				lastBytes = downloaded
+			}
+
+			SetDownloadProgress(mbDownloaded)
+			if speedMBps > 0 {
+				SetDownloadSpeed(speedMBps)
+			}
+
 			if totalSize > 0 && progressCallback != nil {
-				// Scale progress between progressStart and progressEnd
 				rawProgress := float64(downloaded) / float64(totalSize)
 				scaledProgress := progressStart + int(rawProgress*float64(progressEnd-progressStart))
 				progressCallback(scaledProgress)
 			}
+
+			if totalSize > 0 {
+				percent := float64(downloaded) * 100 / float64(totalSize)
+				if speedMBps > 0 {
+					fmt.Printf("\r[FFmpeg] Downloading: %.2f MB / %.2f MB (%.1f%%) - %.2f MB/s",
+						mbDownloaded, float64(totalSize)/(1024*1024), percent, speedMBps)
+				} else {
+					fmt.Printf("\r[FFmpeg] Downloading: %.2f MB / %.2f MB (%.1f%%)",
+						mbDownloaded, float64(totalSize)/(1024*1024), percent)
+				}
+			} else {
+				if speedMBps > 0 {
+					fmt.Printf("\r[FFmpeg] Downloading: %.2f MB - %.2f MB/s", mbDownloaded, speedMBps)
+				} else {
+					fmt.Printf("\r[FFmpeg] Downloading: %.2f MB", mbDownloaded)
+				}
+			}
 		}
 		if err == io.EOF {
 			break
@@ -239,16 +327,20 @@ func downloadAndExtract(url, destDir string, progressCallback func(int), progres
 
 	tmpFile.Close()
 
-	fmt.Printf("[FFmpeg] Download complete, extracting...\n")
+	if totalSize > 0 {
+		fmt.Printf("\r[FFmpeg] Download complete: %.2f MB / %.2f MB (100%%)          \n",
+			float64(downloaded)/(1024*1024), float64(totalSize)/(1024*1024))
+	} else {
+		fmt.Printf("\r[FFmpeg] Download complete: %.2f MB          \n", float64(downloaded)/(1024*1024))
+	}
+	fmt.Printf("[FFmpeg] Extracting...\n")
 
-	// Extract the archive based on file type
 	if strings.HasSuffix(url, ".tar.xz") || runtime.GOOS == "linux" {
 		return extractTarXz(tmpFile.Name(), destDir)
 	}
 	return extractZip(tmpFile.Name(), destDir)
 }
 
-// extractZip extracts ffmpeg and ffprobe from a zip archive (skips ffplay)
 func extractZip(zipPath, destDir string) error {
 	r, err := zip.OpenReader(zipPath)
 	if err != nil {
@@ -280,7 +372,7 @@ func extractZip(zipPath, destDir string) error {
 			destPath = filepath.Join(destDir, ffprobeName)
 			foundFFprobe = true
 		} else {
-			// Skip ffplay and other files
+
 			continue
 		}
 
@@ -308,7 +400,6 @@ func extractZip(zipPath, destDir string) error {
 		fmt.Printf("[FFmpeg] Extracted to: %s\n", destPath)
 	}
 
-	// At least one of ffmpeg or ffprobe should be found
 	if !foundFFmpeg && !foundFFprobe {
 		return fmt.Errorf("neither ffmpeg nor ffprobe found in archive")
 	}
@@ -323,7 +414,6 @@ func extractZip(zipPath, destDir string) error {
 	return nil
 }
 
-// extractTarXz extracts ffmpeg and ffprobe from a tar.xz archive (skips ffplay)
 func extractTarXz(tarXzPath, destDir string) error {
 	file, err := os.Open(tarXzPath)
 	if err != nil {
@@ -366,7 +456,7 @@ func extractTarXz(tarXzPath, destDir string) error {
 			destPath = filepath.Join(destDir, ffprobeName)
 			foundFFprobe = true
 		} else {
-			// Skip ffplay and other files
+
 			continue
 		}
 
@@ -387,7 +477,6 @@ func extractTarXz(tarXzPath, destDir string) error {
 		fmt.Printf("[FFmpeg] Extracted to: %s\n", destPath)
 	}
 
-	// At least one of ffmpeg or ffprobe should be found
 	if !foundFFmpeg && !foundFFprobe {
 		return fmt.Errorf("neither ffmpeg nor ffprobe found in archive")
 	}
@@ -402,15 +491,13 @@ func extractTarXz(tarXzPath, destDir string) error {
 	return nil
 }
 
-// ConvertAudioRequest represents a request to convert audio files
 type ConvertAudioRequest struct {
 	InputFiles   []string `json:"input_files"`
-	OutputFormat string   `json:"output_format"` // mp3, m4a
-	Bitrate      string   `json:"bitrate"`       // e.g., "320k", "256k", "192k", "128k" (ignored for ALAC)
-	Codec        string   `json:"codec"`         // For m4a: "aac" (lossy) or "alac" (lossless). Default: "aac"
+	OutputFormat string   `json:"output_format"`
+	Bitrate      string   `json:"bitrate"`
+	Codec        string   `json:"codec"`
 }
 
-// ConvertAudioResult represents the result of a single file conversion
 type ConvertAudioResult struct {
 	InputFile  string `json:"input_file"`
 	OutputFile string `json:"output_file"`
@@ -418,13 +505,16 @@ type ConvertAudioResult struct {
 	Error      string `json:"error,omitempty"`
 }
 
-// ConvertAudio converts audio files using ffmpeg while preserving metadata
 func ConvertAudio(req ConvertAudioRequest) ([]ConvertAudioResult, error) {
 	ffmpegPath, err := GetFFmpegPath()
 	if err != nil {
 		return nil, fmt.Errorf("failed to get ffmpeg path: %w", err)
 	}
 
+	if err := ValidateExecutable(ffmpegPath); err != nil {
+		return nil, fmt.Errorf("invalid ffmpeg executable: %w", err)
+	}
+
 	installed, err := IsFFmpegInstalled()
 	if err != nil || !installed {
 		return nil, fmt.Errorf("ffmpeg is not installed")
@@ -434,7 +524,6 @@ func ConvertAudio(req ConvertAudioRequest) ([]ConvertAudioResult, error) {
 	var wg sync.WaitGroup
 	var mu sync.Mutex
 
-	// Convert files in parallel
 	for i, inputFile := range req.InputFiles {
 		wg.Add(1)
 		go func(idx int, inputFile string) {
@@ -444,16 +533,13 @@ func ConvertAudio(req ConvertAudioRequest) ([]ConvertAudioResult, error) {
 				InputFile: inputFile,
 			}
 
-			// Get input file info
 			inputExt := strings.ToLower(filepath.Ext(inputFile))
 			baseName := strings.TrimSuffix(filepath.Base(inputFile), inputExt)
 			inputDir := filepath.Dir(inputFile)
 
-			// Determine output directory: same as input file location + subfolder (MP3 or M4A)
 			outputFormatUpper := strings.ToUpper(req.OutputFormat)
 			outputDir := filepath.Join(inputDir, outputFormatUpper)
 
-			// Create output directory if it doesn't exist
 			if err := os.MkdirAll(outputDir, 0755); err != nil {
 				result.Error = fmt.Sprintf("failed to create output directory: %v", err)
 				result.Success = false
@@ -463,11 +549,9 @@ func ConvertAudio(req ConvertAudioRequest) ([]ConvertAudioResult, error) {
 				return
 			}
 
-			// Determine output path
 			outputExt := "." + strings.ToLower(req.OutputFormat)
 			outputFile := filepath.Join(outputDir, baseName+outputExt)
 
-			// Skip if same format
 			if inputExt == outputExt {
 				result.Error = "Input and output formats are the same"
 				result.Success = false
@@ -479,9 +563,14 @@ func ConvertAudio(req ConvertAudioRequest) ([]ConvertAudioResult, error) {
 
 			result.OutputFile = outputFile
 
-			// Extract cover art and lyrics from input file before conversion
 			var coverArtPath string
 			var lyrics string
+			var inputMetadata Metadata
+
+			inputMetadata, err = ExtractFullMetadataFromFile(inputFile)
+			if err != nil {
+				fmt.Printf("[FFmpeg] Warning: Failed to extract metadata from %s: %v\n", inputFile, err)
+			}
 
 			coverArtPath, _ = ExtractCoverArt(inputFile)
 			lyrics, err = ExtractLyrics(inputFile)
@@ -493,49 +582,42 @@ func ConvertAudio(req ConvertAudioRequest) ([]ConvertAudioResult, error) {
 				fmt.Printf("[FFmpeg] No lyrics found in %s\n", inputFile)
 			}
 
-			// Build ffmpeg command
+			inputMetadata.Lyrics = lyrics
+
 			args := []string{
 				"-i", inputFile,
-				"-y", // Overwrite output
+				"-y",
 			}
 
-			// Add codec and bitrate based on output format
 			switch req.OutputFormat {
 			case "mp3":
 				args = append(args,
 					"-codec:a", "libmp3lame",
 					"-b:a", req.Bitrate,
-					"-map", "0:a", // Map audio stream
-					"-map_metadata", "0", // Copy all metadata
-					"-id3v2_version", "3", // Use ID3v2.3 for better compatibility
+					"-map", "0:a",
+					"-id3v2_version", "3",
 				)
-				// Map video stream if exists (for cover art)
-				args = append(args, "-map", "0:v?", "-c:v", "copy")
 			case "m4a":
-				// Determine codec: ALAC (lossless) or AAC (lossy)
+
 				codec := req.Codec
 				if codec == "" {
-					codec = "aac" // Default to AAC for backward compatibility
+					codec = "aac"
 				}
 
 				if codec == "alac" {
-					// ALAC - Apple Lossless (no bitrate needed)
+
 					args = append(args,
 						"-codec:a", "alac",
-						"-map", "0:a", // Map audio stream
-						"-map_metadata", "0", // Copy all metadata
+						"-map", "0:a",
 					)
 				} else {
-					// AAC - lossy with bitrate
+
 					args = append(args,
 						"-codec:a", "aac",
 						"-b:a", req.Bitrate,
-						"-map", "0:a", // Map audio stream
-						"-map_metadata", "0", // Copy all metadata
+						"-map", "0:a",
 					)
 				}
-				// Map video stream for cover art in M4A
-				args = append(args, "-map", "0:v?", "-c:v", "copy", "-disposition:v:0", "attached_pic")
 			}
 
 			args = append(args, outputFile)
@@ -543,7 +625,7 @@ func ConvertAudio(req ConvertAudioRequest) ([]ConvertAudioResult, error) {
 			fmt.Printf("[FFmpeg] Converting: %s -> %s\n", inputFile, outputFile)
 
 			cmd := exec.Command(ffmpegPath, args...)
-			// Hide console window on Windows
+
 			setHideWindow(cmd)
 			output, err := cmd.CombinedOutput()
 			if err != nil {
@@ -552,21 +634,17 @@ func ConvertAudio(req ConvertAudioRequest) ([]ConvertAudioResult, error) {
 				mu.Lock()
 				results[idx] = result
 				mu.Unlock()
-				// Clean up temp cover art file if exists
+
 				if coverArtPath != "" {
 					os.Remove(coverArtPath)
 				}
 				return
 			}
 
-			// Embed cover art and lyrics after conversion if they were extracted
-			if coverArtPath != "" {
-				if err := EmbedCoverArtOnly(outputFile, coverArtPath); err != nil {
-					fmt.Printf("[FFmpeg] Warning: Failed to embed cover art: %v\n", err)
-				} else {
-					fmt.Printf("[FFmpeg] Cover art embedded successfully\n")
-				}
-				os.Remove(coverArtPath) // Clean up temp file
+			if err := EmbedMetadataToConvertedFile(outputFile, inputMetadata, coverArtPath); err != nil {
+				fmt.Printf("[FFmpeg] Warning: Failed to embed metadata: %v\n", err)
+			} else {
+				fmt.Printf("[FFmpeg] Metadata embedded successfully\n")
 			}
 
 			if lyrics != "" {
@@ -577,6 +655,10 @@ func ConvertAudio(req ConvertAudioRequest) ([]ConvertAudioResult, error) {
 				}
 			}
 
+			if coverArtPath != "" {
+				os.Remove(coverArtPath)
+			}
+
 			result.Success = true
 			fmt.Printf("[FFmpeg] Successfully converted: %s\n", outputFile)
 
@@ -590,7 +672,6 @@ func ConvertAudio(req ConvertAudioRequest) ([]ConvertAudioResult, error) {
 	return results, nil
 }
 
-// GetAudioInfo returns information about an audio file
 type AudioFileInfo struct {
 	Path     string `json:"path"`
 	Filename string `json:"filename"`
@@ -598,7 +679,6 @@ type AudioFileInfo struct {
 	Size     int64  `json:"size"`
 }
 
-// GetAudioFileInfo gets information about an audio file
 func GetAudioFileInfo(filePath string) (*AudioFileInfo, error) {
 	info, err := os.Stat(filePath)
 	if err != nil {

backend/ffmpeg_unix.go

@@ -7,8 +7,6 @@ import (
 	"os/exec"
 )
 
-// setHideWindow is a no-op on non-Windows platforms
 func setHideWindow(cmd *exec.Cmd) {
-	// No-op on Unix-like systems
-}
 
+}

backend/ffmpeg_windows.go

@@ -8,10 +8,8 @@ import (
 	"syscall"
 )
 
-// setHideWindow sets HideWindow attribute for Windows processes
 func setHideWindow(cmd *exec.Cmd) {
 	cmd.SysProcAttr = &syscall.SysProcAttr{
 		HideWindow: true,
 	}
 }
-

backend/file_dialog.go

@@ -6,7 +6,6 @@ import (
 	"github.com/wailsapp/wails/v2/pkg/runtime"
 )
 
-// SelectMultipleFiles opens a file dialog to select multiple audio files
 func SelectMultipleFiles(ctx context.Context) ([]string, error) {
 	files, err := runtime.OpenMultipleFilesDialog(ctx, runtime.OpenDialogOptions{
 		Title: "Select Audio Files",
@@ -39,7 +38,6 @@ func SelectMultipleFiles(ctx context.Context) ([]string, error) {
 	return files, nil
 }
 
-// SelectOutputDirectory opens a directory dialog to select output folder
 func SelectOutputDirectory(ctx context.Context) (string, error) {
 	dir, err := runtime.OpenDirectoryDialog(ctx, runtime.OpenDialogOptions{
 		Title: "Select Output Directory",
@@ -49,4 +47,3 @@ func SelectOutputDirectory(ctx context.Context) (string, error) {
 	}
 	return dir, nil
 }
-

backend/filemanager.go

@@ -14,7 +14,6 @@ import (
 	"github.com/go-flac/go-flac"
 )
 
-// FileInfo represents information about a file or folder
 type FileInfo struct {
 	Name     string     `json:"name"`
 	Path     string     `json:"path"`
@@ -23,7 +22,6 @@ type FileInfo struct {
 	Children []FileInfo `json:"children,omitempty"`
 }
 
-// AudioMetadata represents metadata read from an audio file
 type AudioMetadata struct {
 	Title       string `json:"title"`
 	Artist      string `json:"artist"`
@@ -34,7 +32,6 @@ type AudioMetadata struct {
 	Year        string `json:"year"`
 }
 
-// RenamePreview represents a preview of file rename operation
 type RenamePreview struct {
 	OldPath  string        `json:"old_path"`
 	OldName  string        `json:"old_name"`
@@ -44,7 +41,6 @@ type RenamePreview struct {
 	Metadata AudioMetadata `json:"metadata"`
 }
 
-// RenameResult represents the result of a rename operation
 type RenameResult struct {
 	OldPath string `json:"old_path"`
 	NewPath string `json:"new_path"`
@@ -52,7 +48,6 @@ type RenameResult struct {
 	Error   string `json:"error,omitempty"`
 }
 
-// ListDirectory lists files and folders in a directory
 func ListDirectory(dirPath string) ([]FileInfo, error) {
 	entries, err := os.ReadDir(dirPath)
 	if err != nil {
@@ -73,7 +68,6 @@ func ListDirectory(dirPath string) ([]FileInfo, error) {
 			Size:  info.Size(),
 		}
 
-		// If it's a directory, recursively list its contents
 		if entry.IsDir() {
 			children, err := ListDirectory(fileInfo.Path)
 			if err == nil {
@@ -87,13 +81,12 @@ func ListDirectory(dirPath string) ([]FileInfo, error) {
 	return result, nil
 }
 
-// ListAudioFiles lists only audio files (flac, mp3, m4a) in a directory recursively
 func ListAudioFiles(dirPath string) ([]FileInfo, error) {
 	var result []FileInfo
 
 	err := filepath.Walk(dirPath, func(path string, info os.FileInfo, err error) error {
 		if err != nil {
-			return nil // Skip files with errors
+			return nil
 		}
 
 		if info.IsDir() {
@@ -120,7 +113,6 @@ func ListAudioFiles(dirPath string) ([]FileInfo, error) {
 	return result, nil
 }
 
-// ReadAudioMetadata reads metadata from an audio file
 func ReadAudioMetadata(filePath string) (*AudioMetadata, error) {
 	if !fileExists(filePath) {
 		return nil, fmt.Errorf("file does not exist")
@@ -140,7 +132,6 @@ func ReadAudioMetadata(filePath string) (*AudioMetadata, error) {
 	}
 }
 
-// readFlacMetadata reads metadata from a FLAC file
 func readFlacMetadata(filePath string) (*AudioMetadata, error) {
 	f, err := flac.ParseFile(filePath)
 	if err != nil {
@@ -192,7 +183,6 @@ func readFlacMetadata(filePath string) (*AudioMetadata, error) {
 	return metadata, nil
 }
 
-// readMp3Metadata reads metadata from an MP3 file
 func readMp3Metadata(filePath string) (*AudioMetadata, error) {
 	tag, err := id3v2.Open(filePath, id3v2.Options{Parse: true})
 	if err != nil {
@@ -207,14 +197,12 @@ func readMp3Metadata(filePath string) (*AudioMetadata, error) {
 		Year:   tag.Year(),
 	}
 
-	// Get Album Artist (TPE2)
 	if frames := tag.GetFrames("TPE2"); len(frames) > 0 {
 		if textFrame, ok := frames[0].(id3v2.TextFrame); ok {
 			metadata.AlbumArtist = textFrame.Text
 		}
 	}
 
-	// Get Track Number
 	if frames := tag.GetFrames(tag.CommonID("Track number/Position in set")); len(frames) > 0 {
 		if textFrame, ok := frames[0].(id3v2.TextFrame); ok {
 			trackStr := strings.Split(textFrame.Text, "/")[0]
@@ -224,7 +212,6 @@ func readMp3Metadata(filePath string) (*AudioMetadata, error) {
 		}
 	}
 
-	// Get Disc Number
 	if frames := tag.GetFrames(tag.CommonID("Part of a set")); len(frames) > 0 {
 		if textFrame, ok := frames[0].(id3v2.TextFrame); ok {
 			discStr := strings.Split(textFrame.Text, "/")[0]
@@ -237,14 +224,16 @@ func readMp3Metadata(filePath string) (*AudioMetadata, error) {
 	return metadata, nil
 }
 
-// readMetadataWithFFprobe reads metadata from any audio file using ffprobe
 func readMetadataWithFFprobe(filePath string) (*AudioMetadata, error) {
 	ffprobePath, err := GetFFprobePath()
 	if err != nil {
 		return nil, err
 	}
 
-	// Use ffprobe to get metadata in JSON format (both format and stream tags)
+	if err := ValidateExecutable(ffprobePath); err != nil {
+		return nil, fmt.Errorf("invalid ffprobe executable: %w", err)
+	}
+
 	cmd := exec.Command(ffprobePath,
 		"-v", "quiet",
 		"-print_format", "json",
@@ -253,7 +242,6 @@ func readMetadataWithFFprobe(filePath string) (*AudioMetadata, error) {
 		filePath,
 	)
 
-	// Hide console window on Windows
 	setHideWindow(cmd)
 
 	output, err := cmd.Output()
@@ -261,7 +249,6 @@ func readMetadataWithFFprobe(filePath string) (*AudioMetadata, error) {
 		return nil, err
 	}
 
-	// Parse JSON output
 	var result struct {
 		Format struct {
 			Tags map[string]string `json:"tags"`
@@ -277,22 +264,18 @@ func readMetadataWithFFprobe(filePath string) (*AudioMetadata, error) {
 
 	metadata := &AudioMetadata{}
 
-	// Merge tags from format and streams (format tags take priority)
 	allTags := make(map[string]string)
 
-	// First add stream tags
 	for _, stream := range result.Streams {
 		for key, value := range stream.Tags {
 			allTags[strings.ToLower(key)] = value
 		}
 	}
 
-	// Then add format tags (overwrite stream tags)
 	for key, value := range result.Format.Tags {
 		allTags[strings.ToLower(key)] = value
 	}
 
-	// Parse tags
 	for key, value := range allTags {
 		switch key {
 		case "title":
@@ -304,7 +287,7 @@ func readMetadataWithFFprobe(filePath string) (*AudioMetadata, error) {
 		case "album_artist", "albumartist":
 			metadata.AlbumArtist = value
 		case "track":
-			// Format might be "4" or "4/12"
+
 			trackStr := strings.Split(value, "/")[0]
 			if num, err := strconv.Atoi(trackStr); err == nil {
 				metadata.TrackNumber = num
@@ -324,7 +307,6 @@ func readMetadataWithFFprobe(filePath string) (*AudioMetadata, error) {
 	return metadata, nil
 }
 
-// readM4aMetadata reads metadata from an M4A file using ffprobe
 func readM4aMetadata(filePath string) (*AudioMetadata, error) {
 	metadata, err := readMetadataWithFFprobe(filePath)
 	if err != nil {
@@ -333,7 +315,6 @@ func readM4aMetadata(filePath string) (*AudioMetadata, error) {
 	return metadata, nil
 }
 
-// GenerateFilename generates a new filename based on metadata and format template
 func GenerateFilename(metadata *AudioMetadata, format string, ext string) string {
 	if metadata == nil {
 		return ""
@@ -341,38 +322,32 @@ func GenerateFilename(metadata *AudioMetadata, format string, ext string) string
 
 	result := format
 
-	// Extract year (first 4 characters only)
 	year := metadata.Year
 	if len(year) >= 4 {
 		year = year[:4]
 	}
 
-	// Replace placeholders
 	result = strings.ReplaceAll(result, "{title}", sanitizeFilenameForRename(metadata.Title))
 	result = strings.ReplaceAll(result, "{artist}", sanitizeFilenameForRename(metadata.Artist))
 	result = strings.ReplaceAll(result, "{album}", sanitizeFilenameForRename(metadata.Album))
 	result = strings.ReplaceAll(result, "{album_artist}", sanitizeFilenameForRename(metadata.AlbumArtist))
 	result = strings.ReplaceAll(result, "{year}", sanitizeFilenameForRename(year))
 
-	// Track number with padding
 	if metadata.TrackNumber > 0 {
 		result = strings.ReplaceAll(result, "{track}", fmt.Sprintf("%02d", metadata.TrackNumber))
 	} else {
 		result = strings.ReplaceAll(result, "{track}", "")
 	}
 
-	// Disc number
 	if metadata.DiscNumber > 0 {
 		result = strings.ReplaceAll(result, "{disc}", fmt.Sprintf("%d", metadata.DiscNumber))
 	} else {
 		result = strings.ReplaceAll(result, "{disc}", "")
 	}
 
-	// Clean up multiple spaces and trim
 	result = strings.TrimSpace(result)
 	result = strings.Join(strings.Fields(result), " ")
 
-	// Remove leading/trailing separators
 	result = strings.Trim(result, " -._")
 
 	if result == "" {
@@ -382,9 +357,8 @@ func GenerateFilename(metadata *AudioMetadata, format string, ext string) string
 	return result + ext
 }
 
-// sanitizeFilenameForRename removes invalid characters from filename (for rename operations)
 func sanitizeFilenameForRename(name string) string {
-	// Remove characters that are invalid in filenames
+
 	invalid := []string{"<", ">", ":", "\"", "/", "\\", "|", "?", "*"}
 	result := name
 	for _, char := range invalid {
@@ -393,7 +367,6 @@ func sanitizeFilenameForRename(name string) string {
 	return strings.TrimSpace(result)
 }
 
-// PreviewRename generates a preview of rename operations
 func PreviewRename(files []string, format string) []RenamePreview {
 	var previews []RenamePreview
 
@@ -430,7 +403,6 @@ func PreviewRename(files []string, format string) []RenamePreview {
 	return previews
 }
 
-// GetFileSizes returns file sizes for a list of file paths
 func GetFileSizes(files []string) map[string]int64 {
 	result := make(map[string]int64)
 	for _, filePath := range files {
@@ -442,7 +414,6 @@ func GetFileSizes(files []string) map[string]int64 {
 	return result
 }
 
-// RenameFiles renames files based on their metadata
 func RenameFiles(files []string, format string) []RenameResult {
 	var results []RenameResult
 
@@ -472,7 +443,6 @@ func RenameFiles(files []string, format string) []RenameResult {
 		newPath := filepath.Join(filepath.Dir(filePath), newName)
 		result.NewPath = newPath
 
-		// Check if new path already exists (and is different from old path)
 		if newPath != filePath {
 			if _, err := os.Stat(newPath); err == nil {
 				result.Error = "File already exists"
@@ -482,7 +452,6 @@ func RenameFiles(files []string, format string) []RenameResult {
 			}
 		}
 
-		// Rename the file
 		if err := os.Rename(filePath, newPath); err != nil {
 			result.Error = err.Error()
 			result.Success = false

backend/filename.go

@@ -9,15 +9,16 @@ import (
 	"unicode/utf8"
 )
 
-// BuildExpectedFilename builds the expected filename based on track metadata and settings
-func BuildExpectedFilename(trackName, artistName, albumName, albumArtist, releaseDate, filenameFormat string, includeTrackNumber bool, position, discNumber int, useAlbumTrackNumber bool) string {
-	// Sanitize track name and artist name
-	safeTitle := sanitizeFilename(trackName)
-	safeArtist := sanitizeFilename(artistName)
-	safeAlbum := sanitizeFilename(albumName)
-	safeAlbumArtist := sanitizeFilename(albumArtist)
+func BuildExpectedFilename(trackName, artistName, albumName, albumArtist, releaseDate, filenameFormat, playlistName, playlistOwner string, includeTrackNumber bool, position, discNumber int, useAlbumTrackNumber bool) string {
+
+	safeTitle := SanitizeFilename(trackName)
+	safeArtist := SanitizeFilename(artistName)
+	safeAlbum := SanitizeFilename(albumName)
+	safeAlbumArtist := SanitizeFilename(albumArtist)
+
+	safePlaylist := SanitizeFilename(playlistName)
+	safeCreator := SanitizeFilename(playlistOwner)
 
-	// Extract year from release date (format: YYYY-MM-DD or YYYY)
 	year := ""
 	if len(releaseDate) >= 4 {
 		year = releaseDate[:4]
@@ -25,7 +26,6 @@ func BuildExpectedFilename(trackName, artistName, albumName, albumArtist, releas
 
 	var filename string
 
-	// Check if format is a template (contains {})
 	if strings.Contains(filenameFormat, "{") {
 		filename = filenameFormat
 		filename = strings.ReplaceAll(filename, "{title}", safeTitle)
@@ -33,35 +33,34 @@ func BuildExpectedFilename(trackName, artistName, albumName, albumArtist, releas
 		filename = strings.ReplaceAll(filename, "{album}", safeAlbum)
 		filename = strings.ReplaceAll(filename, "{album_artist}", safeAlbumArtist)
 		filename = strings.ReplaceAll(filename, "{year}", year)
+		filename = strings.ReplaceAll(filename, "{playlist}", safePlaylist)
+		filename = strings.ReplaceAll(filename, "{creator}", safeCreator)
 
-		// Handle disc number
 		if discNumber > 0 {
 			filename = strings.ReplaceAll(filename, "{disc}", fmt.Sprintf("%d", discNumber))
 		} else {
 			filename = strings.ReplaceAll(filename, "{disc}", "")
 		}
 
-		// Handle track number - if position is 0, remove {track} and surrounding separators
 		if position > 0 {
 			filename = strings.ReplaceAll(filename, "{track}", fmt.Sprintf("%02d", position))
 		} else {
-			// Remove {track} with common separators like ". " or " - " or ". "
+
 			filename = regexp.MustCompile(`\{track\}\.\s*`).ReplaceAllString(filename, "")
 			filename = regexp.MustCompile(`\{track\}\s*-\s*`).ReplaceAllString(filename, "")
 			filename = regexp.MustCompile(`\{track\}\s*`).ReplaceAllString(filename, "")
 		}
 	} else {
-		// Legacy format support
+
 		switch filenameFormat {
 		case "artist-title":
 			filename = fmt.Sprintf("%s - %s", safeArtist, safeTitle)
 		case "title":
 			filename = safeTitle
-		default: // "title-artist"
+		default:
 			filename = fmt.Sprintf("%s - %s", safeTitle, safeArtist)
 		}
 
-		// Add track number prefix if enabled (legacy behavior)
 		if includeTrackNumber && position > 0 {
 			filename = fmt.Sprintf("%02d. %s", position, filename)
 		}
@@ -70,109 +69,94 @@ func BuildExpectedFilename(trackName, artistName, albumName, albumArtist, releas
 	return filename + ".flac"
 }
 
-// sanitizeFilename removes invalid characters from filename
-func sanitizeFilename(name string) string {
-	// Replace forward slash with space (more natural than underscore)
+func SanitizeFilename(name string) string {
+
 	sanitized := strings.ReplaceAll(name, "/", " ")
 
-	// Remove other invalid filesystem characters (replace with space)
 	re := regexp.MustCompile(`[<>:"\\|?*]`)
 	sanitized = re.ReplaceAllString(sanitized, " ")
 
-	// Remove control characters (0x00-0x1F, 0x7F)
 	var result strings.Builder
 	for _, r := range sanitized {
-		// Keep printable characters and valid Unicode characters
-		// Remove control characters, but keep spaces, tabs, newlines for now
+
 		if r < 0x20 && r != 0x09 && r != 0x0A && r != 0x0D {
 			continue
 		}
 		if r == 0x7F {
 			continue
 		}
-		// Remove emoji and other symbols that might cause issues
-		// Keep letters, numbers, and common punctuation
+
 		if unicode.IsControl(r) && r != 0x09 && r != 0x0A && r != 0x0D {
 			continue
 		}
-		// Remove emoji ranges (most emoji are in these ranges)
-		if (r >= 0x1F300 && r <= 0x1F9FF) || // Miscellaneous Symbols and Pictographs, Emoticons
-			(r >= 0x2600 && r <= 0x26FF) || // Miscellaneous Symbols
-			(r >= 0x2700 && r <= 0x27BF) || // Dingbats
-			(r >= 0xFE00 && r <= 0xFE0F) || // Variation Selectors
-			(r >= 0x1F900 && r <= 0x1F9FF) || // Supplemental Symbols and Pictographs
-			(r >= 0x1F600 && r <= 0x1F64F) || // Emoticons
-			(r >= 0x1F680 && r <= 0x1F6FF) || // Transport and Map Symbols
-			(r >= 0x1F1E0 && r <= 0x1F1FF) { // Regional Indicator Symbols (flags)
-			continue
-		}
+
 		result.WriteRune(r)
 	}
 
 	sanitized = result.String()
 	sanitized = strings.TrimSpace(sanitized)
 
-	// Remove leading/trailing dots and spaces (Windows doesn't allow these)
 	sanitized = strings.Trim(sanitized, ". ")
 
-	// Normalize consecutive spaces to single space
 	re = regexp.MustCompile(`\s+`)
 	sanitized = re.ReplaceAllString(sanitized, " ")
 
-	// Normalize consecutive underscores to single underscore
 	re = regexp.MustCompile(`_+`)
 	sanitized = re.ReplaceAllString(sanitized, "_")
 
-	// Remove leading/trailing underscores and spaces
 	sanitized = strings.Trim(sanitized, "_ ")
 
 	if sanitized == "" {
 		return "Unknown"
 	}
 
-	// Ensure the result is valid UTF-8
 	if !utf8.ValidString(sanitized) {
-		// If invalid UTF-8, try to fix it
+
 		sanitized = strings.ToValidUTF8(sanitized, "_")
 	}
 
 	return sanitized
 }
 
-// NormalizePath only normalizes path separators without modifying folder names
-// Use this for user-provided paths that already exist on the filesystem
+func GetFirstArtist(artistString string) string {
+	if artistString == "" {
+		return ""
+	}
+	delimiters := []string{", ", " & ", " feat. ", " ft. ", " featuring "}
+	for _, d := range delimiters {
+		if idx := strings.Index(strings.ToLower(artistString), d); idx != -1 {
+			return strings.TrimSpace(artistString[:idx])
+		}
+	}
+	return artistString
+}
+
 func NormalizePath(folderPath string) string {
-	// Normalize all forward slashes to backslashes on Windows
+
 	return strings.ReplaceAll(folderPath, "/", string(filepath.Separator))
 }
 
-// SanitizeFolderPath sanitizes each component of a folder path and normalizes separators
-// Use this only for NEW folders being created (artist names, album names, etc.)
 func SanitizeFolderPath(folderPath string) string {
-	// Normalize all forward slashes to backslashes on Windows
+
 	normalizedPath := strings.ReplaceAll(folderPath, "/", string(filepath.Separator))
 
-	// Detect separator
 	sep := string(filepath.Separator)
 
-	// Split path into components
 	parts := strings.Split(normalizedPath, sep)
 	sanitizedParts := make([]string, 0, len(parts))
 
 	for i, part := range parts {
-		// Keep drive letter intact on Windows (e.g., "C:")
+
 		if i == 0 && len(part) == 2 && part[1] == ':' {
 			sanitizedParts = append(sanitizedParts, part)
 			continue
 		}
 
-		// Keep empty first part for absolute paths on Unix (e.g., "/Users/...")
 		if i == 0 && part == "" {
 			sanitizedParts = append(sanitizedParts, part)
 			continue
 		}
 
-		// Sanitize each folder name (but don't replace / or \ since we already normalized)
 		sanitized := sanitizeFolderName(part)
 		if sanitized != "" {
 			sanitizedParts = append(sanitizedParts, sanitized)
@@ -182,8 +166,8 @@ func SanitizeFolderPath(folderPath string) string {
 	return strings.Join(sanitizedParts, sep)
 }
 
-// sanitizeFolderName removes invalid characters from a single folder name
-func sanitizeFolderName(name string) string {
-	// Use the same sanitization as filename
-	return sanitizeFilename(name)
+func sanitizeFolderName(name string) string { return SanitizeFilename(name) }
+
+func sanitizeFilename(name string) string {
+	return SanitizeFilename(name)
 }

backend/folder.go

@@ -14,7 +14,7 @@ func OpenFolderInExplorer(path string) error {
 	switch runtime.GOOS {
 	case "windows":
 		cmd = exec.Command("explorer", path)
-	case "darwin": // macOS
+	case "darwin":
 		cmd = exec.Command("open", path)
 	case "linux":
 		cmd = exec.Command("xdg-open", path)
@@ -26,7 +26,7 @@ func OpenFolderInExplorer(path string) error {
 }
 
 func SelectFolderDialog(ctx context.Context, defaultPath string) (string, error) {
-	// If defaultPath is empty, use default music path
+
 	if defaultPath == "" {
 		defaultPath = GetDefaultMusicPath()
 	}
@@ -41,7 +41,6 @@ func SelectFolderDialog(ctx context.Context, defaultPath string) (string, error)
 		return "", err
 	}
 
-	// If user cancelled, selectedPath will be empty
 	if selectedPath == "" {
 		return "", nil
 	}
@@ -69,10 +68,32 @@ func SelectFileDialog(ctx context.Context) (string, error) {
 		return "", err
 	}
 
-	// If user cancelled, selectedFile will be empty
 	if selectedFile == "" {
 		return "", nil
 	}
 
 	return selectedFile, nil
 }
+
+func SelectImageVideoDialog(ctx context.Context) ([]string, error) {
+	options := wailsRuntime.OpenDialogOptions{
+		Title: "Select Image or Video",
+		Filters: []wailsRuntime.FileFilter{
+			{
+				DisplayName: "Supported Files (*.jpg, *.png, *.mp4, *.mov, ...)",
+				Pattern:     "*.jpg;*.jpeg;*.png;*.gif;*.webp;*.mp4;*.mkv;*.webm;*.mov",
+			},
+			{
+				DisplayName: "All Files (*.*)",
+				Pattern:     "*.*",
+			},
+		},
+	}
+
+	selectedPaths, err := wailsRuntime.OpenMultipleFilesDialog(ctx, options)
+	if err != nil {
+		return nil, err
+	}
+
+	return selectedPaths, nil
+}

backend/history.go

@@ -0,0 +1,326 @@
+package backend
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+	"sort"
+	"time"
+
+	bolt "go.etcd.io/bbolt"
+)
+
+type HistoryItem struct {
+	ID          string `json:"id"`
+	SpotifyID   string `json:"spotify_id"`
+	Title       string `json:"title"`
+	Artists     string `json:"artists"`
+	Album       string `json:"album"`
+	DurationStr string `json:"duration_str"`
+	CoverURL    string `json:"cover_url"`
+	Quality     string `json:"quality"`
+	Format      string `json:"format"`
+	Path        string `json:"path"`
+	Timestamp   int64  `json:"timestamp"`
+}
+
+var historyDB *bolt.DB
+
+const (
+	historyBucket = "DownloadHistory"
+	maxHistory    = 10000
+)
+
+func InitHistoryDB(appName string) error {
+
+	appDir, err := GetFFmpegDir()
+	if err != nil {
+		return err
+	}
+	if _, err := os.Stat(appDir); os.IsNotExist(err) {
+		os.MkdirAll(appDir, 0755)
+	}
+	dbPath := filepath.Join(appDir, "history.db")
+
+	db, err := bolt.Open(dbPath, 0600, &bolt.Options{Timeout: 1 * time.Second})
+	if err != nil {
+		return err
+	}
+
+	err = db.Update(func(tx *bolt.Tx) error {
+		_, err := tx.CreateBucketIfNotExists([]byte(historyBucket))
+		return err
+	})
+
+	if err != nil {
+		db.Close()
+		return err
+	}
+
+	historyDB = db
+	return nil
+}
+
+func CloseHistoryDB() {
+	if historyDB != nil {
+		historyDB.Close()
+	}
+}
+
+func AddHistoryItem(item HistoryItem, appName string) error {
+	if historyDB == nil {
+		if err := InitHistoryDB(appName); err != nil {
+			return err
+		}
+	}
+	return historyDB.Update(func(tx *bolt.Tx) error {
+		b, err := tx.CreateBucketIfNotExists([]byte(historyBucket))
+		if err != nil {
+			return err
+		}
+		id, _ := b.NextSequence()
+
+		item.ID = fmt.Sprintf("%d-%d", time.Now().UnixNano(), id)
+		item.Timestamp = time.Now().Unix()
+
+		buf, err := json.Marshal(item)
+		if err != nil {
+			return err
+		}
+
+		if b.Stats().KeyN >= maxHistory {
+			c := b.Cursor()
+
+			toDelete := maxHistory / 20
+			if toDelete < 1 {
+				toDelete = 1
+			}
+
+			count := 0
+			for k, _ := c.First(); k != nil && count < toDelete; k, _ = c.Next() {
+				if err := b.Delete(k); err != nil {
+					return err
+				}
+				count++
+			}
+		}
+
+		return b.Put([]byte(item.ID), buf)
+	})
+}
+
+func GetHistoryItems(appName string) ([]HistoryItem, error) {
+	if historyDB == nil {
+		if err := InitHistoryDB(appName); err != nil {
+			return nil, err
+		}
+	}
+	var items []HistoryItem
+	err := historyDB.View(func(tx *bolt.Tx) error {
+		b := tx.Bucket([]byte(historyBucket))
+		if b == nil {
+			return nil
+		}
+		c := b.Cursor()
+
+		for k, v := c.First(); k != nil; k, v = c.Next() {
+			var item HistoryItem
+			if err := json.Unmarshal(v, &item); err == nil {
+				items = append(items, item)
+			}
+		}
+		return nil
+	})
+
+	sort.Slice(items, func(i, j int) bool {
+		return items[i].Timestamp > items[j].Timestamp
+	})
+
+	return items, err
+}
+
+func ClearHistory(appName string) error {
+	if historyDB == nil {
+		if err := InitHistoryDB(appName); err != nil {
+			return err
+		}
+	}
+	return historyDB.Update(func(tx *bolt.Tx) error {
+		return tx.DeleteBucket([]byte(historyBucket))
+	})
+}
+
+type FetchHistoryItem struct {
+	ID        string `json:"id"`
+	URL       string `json:"url"`
+	Type      string `json:"type"`
+	Name      string `json:"name"`
+	Info      string `json:"info"`
+	Image     string `json:"image"`
+	Data      string `json:"data"`
+	Timestamp int64  `json:"timestamp"`
+}
+
+const (
+	fetchHistoryBucket = "FetchHistory"
+)
+
+func AddFetchHistoryItem(item FetchHistoryItem, appName string) error {
+	if historyDB == nil {
+		if err := InitHistoryDB(appName); err != nil {
+			return err
+		}
+	}
+	return historyDB.Update(func(tx *bolt.Tx) error {
+		b, err := tx.CreateBucketIfNotExists([]byte(fetchHistoryBucket))
+		if err != nil {
+			return err
+		}
+		id, _ := b.NextSequence()
+
+		if item.URL != "" {
+			c := b.Cursor()
+			for k, v := c.First(); k != nil; k, v = c.Next() {
+				var existing FetchHistoryItem
+				if err := json.Unmarshal(v, &existing); err == nil {
+					if existing.URL == item.URL && existing.Type == item.Type {
+						if err := b.Delete(k); err != nil {
+							return err
+						}
+					}
+				}
+			}
+		}
+
+		item.ID = fmt.Sprintf("%d-%d", time.Now().UnixNano(), id)
+		item.Timestamp = time.Now().Unix()
+
+		buf, err := json.Marshal(item)
+		if err != nil {
+			return err
+		}
+
+		if b.Stats().KeyN >= maxHistory {
+			c := b.Cursor()
+			toDelete := maxHistory / 20
+			if toDelete < 1 {
+				toDelete = 1
+			}
+			count := 0
+			for k, _ := c.First(); k != nil && count < toDelete; k, _ = c.Next() {
+				if err := b.Delete(k); err != nil {
+					return err
+				}
+				count++
+			}
+		}
+
+		return b.Put([]byte(item.ID), buf)
+	})
+}
+
+func GetFetchHistoryItems(appName string) ([]FetchHistoryItem, error) {
+	if historyDB == nil {
+		if err := InitHistoryDB(appName); err != nil {
+			return nil, err
+		}
+	}
+	var items []FetchHistoryItem
+	err := historyDB.View(func(tx *bolt.Tx) error {
+		b := tx.Bucket([]byte(fetchHistoryBucket))
+		if b == nil {
+			return nil
+		}
+		c := b.Cursor()
+
+		for k, v := c.First(); k != nil; k, v = c.Next() {
+			var item FetchHistoryItem
+			if err := json.Unmarshal(v, &item); err == nil {
+				items = append(items, item)
+			}
+		}
+		return nil
+	})
+
+	sort.Slice(items, func(i, j int) bool {
+		return items[i].Timestamp > items[j].Timestamp
+	})
+
+	return items, err
+}
+
+func ClearFetchHistory(appName string) error {
+	if historyDB == nil {
+		if err := InitHistoryDB(appName); err != nil {
+			return err
+		}
+	}
+	return historyDB.Update(func(tx *bolt.Tx) error {
+		return tx.DeleteBucket([]byte(fetchHistoryBucket))
+	})
+}
+
+func ClearFetchHistoryByType(itemType string, appName string) error {
+	if historyDB == nil {
+		if err := InitHistoryDB(appName); err != nil {
+			return err
+		}
+	}
+	return historyDB.Update(func(tx *bolt.Tx) error {
+		b := tx.Bucket([]byte(fetchHistoryBucket))
+		if b == nil {
+			return nil
+		}
+
+		var keysToDelete [][]byte
+
+		c := b.Cursor()
+		for k, v := c.First(); k != nil; k, v = c.Next() {
+			var item FetchHistoryItem
+			if err := json.Unmarshal(v, &item); err == nil {
+				if item.Type == itemType {
+					keysToDelete = append(keysToDelete, k)
+				}
+			}
+		}
+
+		for _, k := range keysToDelete {
+			if err := b.Delete(k); err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+}
+
+func DeleteHistoryItem(id string, appName string) error {
+	if historyDB == nil {
+		if err := InitHistoryDB(appName); err != nil {
+			return err
+		}
+	}
+	return historyDB.Update(func(tx *bolt.Tx) error {
+		b := tx.Bucket([]byte(historyBucket))
+		if b == nil {
+			return nil
+		}
+
+		return b.Delete([]byte(id))
+	})
+}
+
+func DeleteFetchHistoryItem(id string, appName string) error {
+	if historyDB == nil {
+		if err := InitHistoryDB(appName); err != nil {
+			return err
+		}
+	}
+	return historyDB.Update(func(tx *bolt.Tx) error {
+		b := tx.Bucket([]byte(fetchHistoryBucket))
+		if b == nil {
+			return nil
+		}
+		return b.Delete([]byte(id))
+	})
+}

backend/lyrics.go

@@ -14,7 +14,6 @@ import (
 	"time"
 )
 
-// LRCLibResponse represents the LRCLIB API response
 type LRCLibResponse struct {
 	ID           int     `json:"id"`
 	Name         string  `json:"name"`
@@ -27,21 +26,18 @@ type LRCLibResponse struct {
 	SyncedLyrics string  `json:"syncedLyrics"`
 }
 
-// LyricsLine represents a single line of lyrics
 type LyricsLine struct {
 	StartTimeMs string `json:"startTimeMs"`
 	Words       string `json:"words"`
 	EndTimeMs   string `json:"endTimeMs"`
 }
 
-// LyricsResponse represents the API response
 type LyricsResponse struct {
 	Error    bool         `json:"error"`
 	SyncType string       `json:"syncType"`
 	Lines    []LyricsLine `json:"lines"`
 }
 
-// LyricsDownloadRequest represents a request to download lyrics
 type LyricsDownloadRequest struct {
 	SpotifyID           string `json:"spotify_id"`
 	TrackName           string `json:"track_name"`
@@ -57,7 +53,6 @@ type LyricsDownloadRequest struct {
 	DiscNumber          int    `json:"disc_number"`
 }
 
-// LyricsDownloadResponse represents the response from lyrics download
 type LyricsDownloadResponse struct {
 	Success       bool   `json:"success"`
 	Message       string `json:"message"`
@@ -66,27 +61,28 @@ type LyricsDownloadResponse struct {
 	AlreadyExists bool   `json:"already_exists,omitempty"`
 }
 
-// LyricsClient handles lyrics fetching
 type LyricsClient struct {
 	httpClient *http.Client
 }
 
-// NewLyricsClient creates a new lyrics client
 func NewLyricsClient() *LyricsClient {
 	return &LyricsClient{
 		httpClient: &http.Client{Timeout: 15 * time.Second},
 	}
 }
 
-// FetchLyricsWithMetadata fetches lyrics using track name and artist from LRCLIB
-func (c *LyricsClient) FetchLyricsWithMetadata(trackName, artistName string) (*LyricsResponse, error) {
-	// Try LRCLIB API
+func (c *LyricsClient) FetchLyricsWithMetadata(trackName, artistName string, duration int) (*LyricsResponse, error) {
+
 	apiBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9scmNsaWIubmV0L2FwaS9nZXQ/YXJ0aXN0X25hbWU9")
 	apiURL := fmt.Sprintf("%s%s&track_name=%s",
 		string(apiBase),
 		url.QueryEscape(artistName),
 		url.QueryEscape(trackName))
 
+	if duration > 0 {
+		apiURL = fmt.Sprintf("%s&duration=%d", apiURL, duration)
+	}
+
 	resp, err := c.httpClient.Get(apiURL)
 	if err != nil {
 		return nil, fmt.Errorf("failed to fetch from LRCLIB: %v", err)
@@ -107,11 +103,9 @@ func (c *LyricsClient) FetchLyricsWithMetadata(trackName, artistName string) (*L
 		return nil, fmt.Errorf("failed to parse LRCLIB response: %v", err)
 	}
 
-	// Convert LRCLIB response to our LyricsResponse format
 	return c.convertLRCLibToLyricsResponse(&lrcLibResp), nil
 }
 
-// convertLRCLibToLyricsResponse converts LRCLIB response to our standard format
 func (c *LyricsClient) convertLRCLibToLyricsResponse(lrcLib *LRCLibResponse) *LyricsResponse {
 	resp := &LyricsResponse{
 		Error:    false,
@@ -119,7 +113,6 @@ func (c *LyricsClient) convertLRCLibToLyricsResponse(lrcLib *LRCLibResponse) *Ly
 		Lines:    []LyricsLine{},
 	}
 
-	// Prefer synced lyrics, fall back to plain
 	lyricsText := lrcLib.SyncedLyrics
 	if lyricsText == "" {
 		lyricsText = lrcLib.PlainLyrics
@@ -131,7 +124,6 @@ func (c *LyricsClient) convertLRCLibToLyricsResponse(lrcLib *LRCLibResponse) *Ly
 		return resp
 	}
 
-	// Parse synced lyrics format [mm:ss.xx] text
 	lines := strings.Split(lyricsText, "\n")
 	for _, line := range lines {
 		line = strings.TrimSpace(line)
@@ -139,14 +131,12 @@ func (c *LyricsClient) convertLRCLibToLyricsResponse(lrcLib *LRCLibResponse) *Ly
 			continue
 		}
 
-		// Check if line has timestamp [mm:ss.xx]
 		if strings.HasPrefix(line, "[") && len(line) > 10 {
 			closeBracket := strings.Index(line, "]")
 			if closeBracket > 0 {
 				timestamp := line[1:closeBracket]
 				words := strings.TrimSpace(line[closeBracket+1:])
 
-				// Convert [mm:ss.xx] to milliseconds
 				ms := lrcTimestampToMs(timestamp)
 				resp.Lines = append(resp.Lines, LyricsLine{
 					StartTimeMs: fmt.Sprintf("%d", ms),
@@ -156,9 +146,8 @@ func (c *LyricsClient) convertLRCLibToLyricsResponse(lrcLib *LRCLibResponse) *Ly
 			}
 		}
 
-		// Plain lyrics line (no timestamp)
 		resp.Lines = append(resp.Lines, LyricsLine{
-			StartTimeMs: "0",
+			StartTimeMs: "",
 			Words:       line,
 		})
 	}
@@ -166,10 +155,9 @@ func (c *LyricsClient) convertLRCLibToLyricsResponse(lrcLib *LRCLibResponse) *Ly
 	return resp
 }
 
-// lrcTimestampToMs converts LRC timestamp [mm:ss.xx] to milliseconds
 func lrcTimestampToMs(timestamp string) int64 {
 	var minutes, seconds, centiseconds int64
-	// Try parsing mm:ss.xx format
+
 	n, _ := fmt.Sscanf(timestamp, "%d:%d.%d", &minutes, &seconds, &centiseconds)
 	if n >= 2 {
 		return minutes*60*1000 + seconds*1000 + centiseconds*10
@@ -177,7 +165,6 @@ func lrcTimestampToMs(timestamp string) int64 {
 	return 0
 }
 
-// FetchLyricsFromLRCLibSearch fetches lyrics using LRCLIB search API
 func (c *LyricsClient) FetchLyricsFromLRCLibSearch(trackName, artistName string) (*LyricsResponse, error) {
 	query := fmt.Sprintf("%s %s", artistName, trackName)
 	apiBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9scmNsaWIubmV0L2FwaS9zZWFyY2g/cT0=")
@@ -207,7 +194,6 @@ func (c *LyricsClient) FetchLyricsFromLRCLibSearch(trackName, artistName string)
 		return nil, fmt.Errorf("no results found")
 	}
 
-	// Find best match - prefer one with synced lyrics
 	var best *LRCLibResponse
 	for i := range results {
 		if results[i].SyncedLyrics != "" {
@@ -226,41 +212,37 @@ func (c *LyricsClient) FetchLyricsFromLRCLibSearch(trackName, artistName string)
 	return c.convertLRCLibToLyricsResponse(best), nil
 }
 
-// simplifyTrackName removes common suffixes like "(feat. X)", "(Remastered)", etc.
 func simplifyTrackName(name string) string {
-	// Remove content in parentheses
+
 	if idx := strings.Index(name, "("); idx > 0 {
 		name = strings.TrimSpace(name[:idx])
 	}
-	// Remove content after " - " (like "From the Motion Picture")
+
 	if idx := strings.Index(name, " - "); idx > 0 {
 		name = strings.TrimSpace(name[:idx])
 	}
 	return name
 }
 
-// FetchLyricsAllSources tries all LRCLIB sources to get lyrics
-func (c *LyricsClient) FetchLyricsAllSources(spotifyID, trackName, artistName string) (*LyricsResponse, string, error) {
-	// 1. Try LRCLIB exact match
-	resp, err := c.FetchLyricsWithMetadata(trackName, artistName)
+func (c *LyricsClient) FetchLyricsAllSources(spotifyID, trackName, artistName string, duration int) (*LyricsResponse, string, error) {
+
+	resp, err := c.FetchLyricsWithMetadata(trackName, artistName, duration)
 	if err == nil && resp != nil && !resp.Error && len(resp.Lines) > 0 {
 		return resp, "LRCLIB", nil
 	}
 	fmt.Printf("   LRCLIB exact: %v\n", err)
 
-	// 2. Try LRCLIB search
 	resp, err = c.FetchLyricsFromLRCLibSearch(trackName, artistName)
 	if err == nil && resp != nil && !resp.Error && len(resp.Lines) > 0 {
 		return resp, "LRCLIB Search", nil
 	}
 	fmt.Printf("   LRCLIB search: %v\n", err)
 
-	// 3. Try with simplified track name (remove parentheses, subtitles)
 	simplifiedTrack := simplifyTrackName(trackName)
 	if simplifiedTrack != trackName {
 		fmt.Printf("   Trying simplified name: %s\n", simplifiedTrack)
 
-		resp, err = c.FetchLyricsWithMetadata(simplifiedTrack, artistName)
+		resp, err = c.FetchLyricsWithMetadata(simplifiedTrack, artistName, duration)
 		if err == nil && resp != nil && !resp.Error && len(resp.Lines) > 0 {
 			return resp, "LRCLIB (simplified)", nil
 		}
@@ -274,31 +256,31 @@ func (c *LyricsClient) FetchLyricsAllSources(spotifyID, trackName, artistName st
 	return nil, "", fmt.Errorf("lyrics not found in any source")
 }
 
-// ConvertToLRC converts lyrics response to LRC format
 func (c *LyricsClient) ConvertToLRC(lyrics *LyricsResponse, trackName, artistName string) string {
 	var sb strings.Builder
 
-	// Add metadata
 	sb.WriteString(fmt.Sprintf("[ti:%s]\n", trackName))
 	sb.WriteString(fmt.Sprintf("[ar:%s]\n", artistName))
 	sb.WriteString("[by:SpotiFlac]\n")
 	sb.WriteString("\n")
 
-	// Add lyrics lines
 	for _, line := range lyrics.Lines {
 		if line.Words == "" {
 			continue
 		}
 
-		// Convert milliseconds to LRC timestamp format [mm:ss.xx]
-		timestamp := msToLRCTimestamp(line.StartTimeMs)
-		sb.WriteString(fmt.Sprintf("%s%s\n", timestamp, line.Words))
+		if line.StartTimeMs == "" {
+			sb.WriteString(fmt.Sprintf("%s\n", line.Words))
+		} else {
+
+			timestamp := msToLRCTimestamp(line.StartTimeMs)
+			sb.WriteString(fmt.Sprintf("%s%s\n", timestamp, line.Words))
+		}
 	}
 
 	return sb.String()
 }
 
-// msToLRCTimestamp converts milliseconds string to LRC timestamp format [mm:ss.xx]
 func msToLRCTimestamp(msStr string) string {
 	var ms int64
 	fmt.Sscanf(msStr, "%d", &ms)
@@ -311,14 +293,12 @@ func msToLRCTimestamp(msStr string) string {
 	return fmt.Sprintf("[%02d:%02d.%02d]", minutes, seconds, centiseconds)
 }
 
-// buildLyricsFilename builds the lyrics filename based on settings (same as track filename)
 func buildLyricsFilename(trackName, artistName, albumName, albumArtist, releaseDate, filenameFormat string, includeTrackNumber bool, position, discNumber int) string {
 	safeTitle := sanitizeFilename(trackName)
 	safeArtist := sanitizeFilename(artistName)
 	safeAlbum := sanitizeFilename(albumName)
 	safeAlbumArtist := sanitizeFilename(albumArtist)
 
-	// Extract year from release date (format: YYYY-MM-DD or YYYY)
 	year := ""
 	if len(releaseDate) >= 4 {
 		year = releaseDate[:4]
@@ -326,7 +306,6 @@ func buildLyricsFilename(trackName, artistName, albumName, albumArtist, releaseD
 
 	var filename string
 
-	// Check if format is a template (contains {})
 	if strings.Contains(filenameFormat, "{") {
 		filename = filenameFormat
 		filename = strings.ReplaceAll(filename, "{title}", safeTitle)
@@ -335,34 +314,31 @@ func buildLyricsFilename(trackName, artistName, albumName, albumArtist, releaseD
 		filename = strings.ReplaceAll(filename, "{album_artist}", safeAlbumArtist)
 		filename = strings.ReplaceAll(filename, "{year}", year)
 
-		// Handle disc number
 		if discNumber > 0 {
 			filename = strings.ReplaceAll(filename, "{disc}", fmt.Sprintf("%d", discNumber))
 		} else {
 			filename = strings.ReplaceAll(filename, "{disc}", "")
 		}
 
-		// Handle track number - if position is 0, remove {track} and surrounding separators
 		if position > 0 {
 			filename = strings.ReplaceAll(filename, "{track}", fmt.Sprintf("%02d", position))
 		} else {
-			// Remove {track} with common separators
+
 			filename = regexp.MustCompile(`\{track\}\.\s*`).ReplaceAllString(filename, "")
 			filename = regexp.MustCompile(`\{track\}\s*-\s*`).ReplaceAllString(filename, "")
 			filename = regexp.MustCompile(`\{track\}\s*`).ReplaceAllString(filename, "")
 		}
 	} else {
-		// Legacy format support
+
 		switch filenameFormat {
 		case "artist-title":
 			filename = fmt.Sprintf("%s - %s", safeArtist, safeTitle)
 		case "title":
 			filename = safeTitle
-		default: // "title-artist"
+		default:
 			filename = fmt.Sprintf("%s - %s", safeTitle, safeArtist)
 		}
 
-		// Add track number prefix if enabled (legacy behavior)
 		if includeTrackNumber && position > 0 {
 			filename = fmt.Sprintf("%02d. %s", position, filename)
 		}
@@ -371,7 +347,47 @@ func buildLyricsFilename(trackName, artistName, albumName, albumArtist, releaseD
 	return filename + ".lrc"
 }
 
-// DownloadLyrics downloads lyrics for a single track
+func findAudioFileForLyrics(dir, trackName, artistName string) string {
+
+	safeTitle := sanitizeFilename(trackName)
+	safeArtist := sanitizeFilename(artistName)
+
+	audioExts := []string{".flac", ".mp3", ".m4a", ".FLAC", ".MP3", ".M4A"}
+
+	patterns := []string{
+		fmt.Sprintf("%s - %s", safeTitle, safeArtist),
+		fmt.Sprintf("%s - %s", safeArtist, safeTitle),
+		safeTitle,
+	}
+
+	entries, err := os.ReadDir(dir)
+	if err != nil {
+		return ""
+	}
+
+	for _, entry := range entries {
+		if entry.IsDir() {
+			continue
+		}
+
+		filename := entry.Name()
+		baseName := strings.TrimSuffix(filename, filepath.Ext(filename))
+
+		for _, pattern := range patterns {
+			if strings.HasPrefix(baseName, pattern) || strings.Contains(baseName, pattern) {
+				ext := strings.ToLower(filepath.Ext(filename))
+				for _, audioExt := range audioExts {
+					if ext == strings.ToLower(audioExt) {
+						return filepath.Join(dir, filename)
+					}
+				}
+			}
+		}
+	}
+
+	return ""
+}
+
 func (c *LyricsClient) DownloadLyrics(req LyricsDownloadRequest) (*LyricsDownloadResponse, error) {
 	if req.SpotifyID == "" {
 		return &LyricsDownloadResponse{
@@ -380,7 +396,6 @@ func (c *LyricsClient) DownloadLyrics(req LyricsDownloadRequest) (*LyricsDownloa
 		}, fmt.Errorf("spotify ID is required")
 	}
 
-	// Create output directory if it doesn't exist
 	outputDir := req.OutputDir
 	if outputDir == "" {
 		outputDir = GetDefaultMusicPath()
@@ -388,6 +403,25 @@ func (c *LyricsClient) DownloadLyrics(req LyricsDownloadRequest) (*LyricsDownloa
 		outputDir = NormalizePath(outputDir)
 	}
 
+	safeArtist := sanitizeFilename(req.AlbumArtist)
+	if safeArtist == "" {
+		safeArtist = sanitizeFilename(req.ArtistName)
+	}
+	safeAlbum := sanitizeFilename(req.AlbumName)
+
+	if safeArtist != "" && safeAlbum != "" {
+		artistAlbumPath := filepath.Join(outputDir, safeArtist, safeAlbum)
+		if info, err := os.Stat(artistAlbumPath); err == nil && info.IsDir() {
+			outputDir = artistAlbumPath
+		} else {
+
+			artistPath := filepath.Join(outputDir, safeArtist)
+			if info, err := os.Stat(artistPath); err == nil && info.IsDir() {
+				outputDir = artistPath
+			}
+		}
+	}
+
 	if err := os.MkdirAll(outputDir, 0755); err != nil {
 		return &LyricsDownloadResponse{
 			Success: false,
@@ -395,15 +429,13 @@ func (c *LyricsClient) DownloadLyrics(req LyricsDownloadRequest) (*LyricsDownloa
 		}, err
 	}
 
-	// Generate filename using same format as track
 	filenameFormat := req.FilenameFormat
 	if filenameFormat == "" {
-		filenameFormat = "title-artist" // default
+		filenameFormat = "title-artist"
 	}
 	filename := buildLyricsFilename(req.TrackName, req.ArtistName, req.AlbumName, req.AlbumArtist, req.ReleaseDate, filenameFormat, req.TrackNumber, req.Position, req.DiscNumber)
 	filePath := filepath.Join(outputDir, filename)
 
-	// Check if file already exists
 	if fileInfo, err := os.Stat(filePath); err == nil && fileInfo.Size() > 0 {
 		return &LyricsDownloadResponse{
 			Success:       true,
@@ -413,8 +445,17 @@ func (c *LyricsClient) DownloadLyrics(req LyricsDownloadRequest) (*LyricsDownloa
 		}, nil
 	}
 
-	// Fetch lyrics from LRCLIB
-	lyrics, _, err := c.FetchLyricsAllSources(req.SpotifyID, req.TrackName, req.ArtistName)
+	audioDuration := 0
+	audioFile := findAudioFileForLyrics(outputDir, req.TrackName, req.ArtistName)
+	if audioFile != "" {
+		duration, err := GetAudioDuration(audioFile)
+		if err == nil && duration > 0 {
+			audioDuration = int(duration)
+			fmt.Printf("[DownloadLyrics] Found audio file, duration: %d seconds\n", audioDuration)
+		}
+	}
+
+	lyrics, _, err := c.FetchLyricsAllSources(req.SpotifyID, req.TrackName, req.ArtistName, audioDuration)
 	if err != nil {
 		return &LyricsDownloadResponse{
 			Success: false,
@@ -422,10 +463,8 @@ func (c *LyricsClient) DownloadLyrics(req LyricsDownloadRequest) (*LyricsDownloa
 		}, err
 	}
 
-	// Convert to LRC format
 	lrcContent := c.ConvertToLRC(lyrics, req.TrackName, req.ArtistName)
 
-	// Write LRC file
 	if err := os.WriteFile(filePath, []byte(lrcContent), 0644); err != nil {
 		return &LyricsDownloadResponse{
 			Success: false,

backend/metadata.go

@@ -1,13 +1,13 @@
 package backend
 
 import (
+	"encoding/json"
 	"fmt"
 	"os"
 	"os/exec"
 	pathfilepath "path/filepath"
 	"strconv"
 	"strings"
-	"sync"
 
 	id3v2 "github.com/bogem/id3v2/v2"
 	"github.com/go-flac/flacpicture"
@@ -20,14 +20,18 @@ type Metadata struct {
 	Artist      string
 	Album       string
 	AlbumArtist string
-	Date        string // Recorded date (full date YYYY-MM-DD)
-	ReleaseDate string // Release date (full date) - kept for compatibility
+	Date        string
+	ReleaseDate string
 	TrackNumber int
-	TotalTracks int // Total tracks in album
+	TotalTracks int
 	DiscNumber  int
-	ISRC        string
+	TotalDiscs  int
+	URL         string
+	Copyright   string
+	Publisher   string
 	Lyrics      string
 	Description string
+	ISRC        string
 }
 
 func EmbedMetadata(filepath string, metadata Metadata, coverPath string) error {
@@ -70,15 +74,25 @@ func EmbedMetadata(filepath string, metadata Metadata, coverPath string) error {
 	if metadata.DiscNumber > 0 {
 		_ = cmt.Add("DISCNUMBER", strconv.Itoa(metadata.DiscNumber))
 	}
-	if metadata.ISRC != "" {
-		_ = cmt.Add(flacvorbis.FIELD_ISRC, metadata.ISRC)
+	if metadata.TotalDiscs > 0 {
+		_ = cmt.Add("TOTALDISCS", strconv.Itoa(metadata.TotalDiscs))
+	}
+	if metadata.Copyright != "" {
+		_ = cmt.Add("COPYRIGHT", metadata.Copyright)
+	}
+	if metadata.Publisher != "" {
+		_ = cmt.Add("PUBLISHER", metadata.Publisher)
 	}
 	if metadata.Description != "" {
 		_ = cmt.Add("DESCRIPTION", metadata.Description)
 	}
-	// Lyrics is added last to keep it at the bottom
+
+	if metadata.ISRC != "" {
+		_ = cmt.Add("ISRC", metadata.ISRC)
+	}
+
 	if metadata.Lyrics != "" {
-		_ = cmt.Add("LYRICS", metadata.Lyrics) // Or "UNSYNCEDLYRICS" for unsynced
+		_ = cmt.Add("LYRICS", metadata.Lyrics)
 	}
 
 	cmtBlock := cmt.Marshal()
@@ -135,20 +149,17 @@ func fileExists(path string) bool {
 	return err == nil
 }
 
-// extractYear extracts the year from a release date string
-// Handles formats: "YYYY-MM-DD", "YYYY-MM", "YYYY"
 func extractYear(releaseDate string) string {
 	if releaseDate == "" {
 		return ""
 	}
-	// Try to extract year (first 4 digits)
+
 	if len(releaseDate) >= 4 {
 		return releaseDate[:4]
 	}
 	return releaseDate
 }
 
-// EmbedLyricsOnly adds lyrics to a FLAC file while preserving existing metadata
 func EmbedLyricsOnly(filepath string, lyrics string) error {
 	if lyrics == "" {
 		return nil
@@ -171,10 +182,8 @@ func EmbedLyricsOnly(filepath string, lyrics string) error {
 		}
 	}
 
-	// Create new comment block, preserving existing comments
 	cmt := flacvorbis.New()
 
-	// Copy existing comments except LYRICS
 	if existingCmt != nil {
 		for _, comment := range existingCmt.Comments {
 			parts := strings.SplitN(comment, "=", 2)
@@ -187,7 +196,6 @@ func EmbedLyricsOnly(filepath string, lyrics string) error {
 		}
 	}
 
-	// Add lyrics
 	_ = cmt.Add("LYRICS", lyrics)
 
 	cmtBlock := cmt.Marshal()
@@ -204,82 +212,6 @@ func EmbedLyricsOnly(filepath string, lyrics string) error {
 	return nil
 }
 
-// ReadISRCFromFile reads ISRC metadata from a FLAC file
-func ReadISRCFromFile(filepath string) (string, error) {
-	if !fileExists(filepath) {
-		return "", fmt.Errorf("file does not exist")
-	}
-
-	f, err := flac.ParseFile(filepath)
-	if err != nil {
-		return "", fmt.Errorf("failed to parse FLAC file: %w", err)
-	}
-
-	// Find VorbisComment block
-	for _, block := range f.Meta {
-		if block.Type == flac.VorbisComment {
-			cmt, err := flacvorbis.ParseFromMetaDataBlock(*block)
-			if err != nil {
-				continue
-			}
-
-			// Get ISRC field
-			isrcValues, err := cmt.Get(flacvorbis.FIELD_ISRC)
-			if err == nil && len(isrcValues) > 0 {
-				return isrcValues[0], nil
-			}
-		}
-	}
-
-	return "", nil // No ISRC found
-}
-
-// CheckISRCExists checks if a file with the given ISRC already exists in the directory
-func CheckISRCExists(outputDir string, targetISRC string) (string, bool) {
-	if targetISRC == "" {
-		return "", false
-	}
-
-	// Read all .flac files in directory
-	entries, err := os.ReadDir(outputDir)
-	if err != nil {
-		return "", false
-	}
-
-	for _, entry := range entries {
-		if entry.IsDir() {
-			continue
-		}
-
-		// Check only .flac files
-		filename := entry.Name()
-		if len(filename) < 5 || filename[len(filename)-5:] != ".flac" {
-			continue
-		}
-
-		filepath := fmt.Sprintf("%s/%s", outputDir, filename)
-
-		// Read ISRC from file (this will fail for corrupted files)
-		isrc, err := ReadISRCFromFile(filepath)
-		if err != nil {
-			// File is corrupted or unreadable, delete it
-			fmt.Printf("Removing corrupted/unreadable file: %s (error: %v)\n", filepath, err)
-			if removeErr := os.Remove(filepath); removeErr != nil {
-				fmt.Printf("Warning: Failed to remove corrupted file %s: %v\n", filepath, removeErr)
-			}
-			continue
-		}
-
-		// Compare ISRC (case-insensitive)
-		if isrc != "" && strings.EqualFold(isrc, targetISRC) {
-			return filepath, true
-		}
-	}
-
-	return "", false
-}
-
-// ExtractCoverArt extracts cover art from an audio file and saves it to a temporary file
 func ExtractCoverArt(filePath string) (string, error) {
 	ext := strings.ToLower(pathfilepath.Ext(filePath))
 
@@ -293,7 +225,6 @@ func ExtractCoverArt(filePath string) (string, error) {
 	}
 }
 
-// extractCoverFromMp3 extracts cover art from MP3 file
 func extractCoverFromMp3(filePath string) (string, error) {
 	tag, err := id3v2.Open(filePath, id3v2.Options{Parse: true})
 	if err != nil {
@@ -311,7 +242,6 @@ func extractCoverFromMp3(filePath string) (string, error) {
 		return "", fmt.Errorf("invalid picture frame")
 	}
 
-	// Create temporary file
 	tmpFile, err := os.CreateTemp("", "cover-*.jpg")
 	if err != nil {
 		return "", fmt.Errorf("failed to create temp file: %w", err)
@@ -326,7 +256,6 @@ func extractCoverFromMp3(filePath string) (string, error) {
 	return tmpFile.Name(), nil
 }
 
-// extractCoverFromM4AOrFlac extracts cover art from M4A or FLAC file
 func extractCoverFromM4AOrFlac(filePath string) (string, error) {
 	ext := strings.ToLower(pathfilepath.Ext(filePath))
 
@@ -343,7 +272,6 @@ func extractCoverFromM4AOrFlac(filePath string) (string, error) {
 					continue
 				}
 
-				// Create temporary file
 				tmpFile, err := os.CreateTemp("", "cover-*.jpg")
 				if err != nil {
 					return "", fmt.Errorf("failed to create temp file: %w", err)
@@ -361,12 +289,9 @@ func extractCoverFromM4AOrFlac(filePath string) (string, error) {
 		return "", fmt.Errorf("no cover art found")
 	}
 
-	// For M4A, try to extract using ffmpeg or return empty
-	// M4A cover art should be preserved by ffmpeg during conversion
 	return "", nil
 }
 
-// ExtractLyrics extracts lyrics from an audio file
 func ExtractLyrics(filePath string) (string, error) {
 	ext := strings.ToLower(pathfilepath.Ext(filePath))
 
@@ -376,14 +301,13 @@ func ExtractLyrics(filePath string) (string, error) {
 	case ".flac":
 		return extractLyricsFromFlac(filePath)
 	case ".m4a":
-		// M4A lyrics extraction would need different approach
+
 		return "", nil
 	default:
 		return "", fmt.Errorf("unsupported file format: %s", ext)
 	}
 }
 
-// extractLyricsFromMp3 extracts lyrics from MP3 file
 func extractLyricsFromMp3(filePath string) (string, error) {
 	tag, err := id3v2.Open(filePath, id3v2.Options{Parse: true})
 	if err != nil {
@@ -412,7 +336,6 @@ func extractLyricsFromMp3(filePath string) (string, error) {
 	return uslt.Lyrics, nil
 }
 
-// extractLyricsFromFlac extracts lyrics from FLAC file
 func extractLyricsFromFlac(filePath string) (string, error) {
 	f, err := flac.ParseFile(filePath)
 	if err != nil {
@@ -426,7 +349,6 @@ func extractLyricsFromFlac(filePath string) (string, error) {
 				continue
 			}
 
-			// Search through comments for lyrics
 			for _, comment := range cmt.Comments {
 				parts := strings.SplitN(comment, "=", 2)
 				if len(parts) == 2 {
@@ -445,7 +367,6 @@ func extractLyricsFromFlac(filePath string) (string, error) {
 	return "", nil
 }
 
-// EmbedCoverArtOnly embeds cover art into an audio file
 func EmbedCoverArtOnly(filePath string, coverPath string) error {
 	if coverPath == "" || !fileExists(coverPath) {
 		return nil
@@ -457,16 +378,13 @@ func EmbedCoverArtOnly(filePath string, coverPath string) error {
 	case ".mp3":
 		return embedCoverToMp3(filePath, coverPath)
 	case ".m4a":
-		// M4A cover art should be handled by ffmpeg during conversion
-		// If not, we can try to embed using atomicparsley or similar tool
-		// For now, return nil as ffmpeg should handle it
+
 		return nil
 	default:
 		return fmt.Errorf("unsupported file format: %s", ext)
 	}
 }
 
-// embedCoverToMp3 embeds cover art into MP3 file
 func embedCoverToMp3(filePath string, coverPath string) error {
 	tag, err := id3v2.Open(filePath, id3v2.Options{Parse: true})
 	if err != nil {
@@ -474,16 +392,13 @@ func embedCoverToMp3(filePath string, coverPath string) error {
 	}
 	defer tag.Close()
 
-	// Remove existing cover art
 	tag.DeleteFrames(tag.CommonID("Attached picture"))
 
-	// Read cover art
 	artwork, err := os.ReadFile(coverPath)
 	if err != nil {
 		return fmt.Errorf("failed to read cover art: %w", err)
 	}
 
-	// Add new cover art
 	pic := id3v2.PictureFrame{
 		Encoding:    id3v2.EncodingUTF8,
 		MimeType:    "image/jpeg",
@@ -500,27 +415,30 @@ func embedCoverToMp3(filePath string, coverPath string) error {
 	return nil
 }
 
-// EmbedLyricsOnlyMP3 adds lyrics to an MP3 file using ID3v2 USLT frame
 func EmbedLyricsOnlyMP3(filepath string, lyrics string) error {
 	if lyrics == "" {
 		return nil
 	}
 
+	validatedLyrics, err := validateLyricsDuration(lyrics, filepath)
+	if err != nil {
+		fmt.Printf("[EmbedLyricsOnlyMP3] Warning: Failed to validate lyrics duration: %v, using original lyrics\n", err)
+		validatedLyrics = lyrics
+	}
+	lyrics = validatedLyrics
+
 	tag, err := id3v2.Open(filepath, id3v2.Options{Parse: true})
 	if err != nil {
 		return fmt.Errorf("failed to open MP3 file: %w", err)
 	}
 	defer tag.Close()
 
-	// Remove existing USLT frames
 	tag.DeleteFrames(tag.CommonID("Unsynchronised lyrics/text transcription"))
 
-	// Add new USLT frame with lyrics
-	// Use UTF-8 encoding for better compatibility with AIMP and other players
 	usltFrame := id3v2.UnsynchronisedLyricsFrame{
-		Encoding:          id3v2.EncodingUTF8, // Use UTF-8 instead of default encoding
+		Encoding:          id3v2.EncodingUTF8,
 		Language:          "eng",
-		ContentDescriptor: "", // Empty descriptor for better compatibility
+		ContentDescriptor: "",
 		Lyrics:            lyrics,
 	}
 	tag.AddUnsynchronisedLyricsFrame(usltFrame)
@@ -532,27 +450,32 @@ func EmbedLyricsOnlyMP3(filepath string, lyrics string) error {
 	return nil
 }
 
-// embedLyricsToM4A adds lyrics to an M4A file using ffmpeg
 func embedLyricsToM4A(filepath string, lyrics string) error {
-	// Use ffmpeg to embed lyrics into M4A file
-	// M4A uses iTunes metadata format with atom '©lyr' for lyrics
+
+	validatedLyrics, err := validateLyricsDuration(lyrics, filepath)
+	if err != nil {
+		fmt.Printf("[embedLyricsToM4A] Warning: Failed to validate lyrics duration: %v, using original lyrics\n", err)
+		validatedLyrics = lyrics
+	}
+	lyrics = validatedLyrics
+
 	ffmpegPath, err := GetFFmpegPath()
 	if err != nil {
 		return fmt.Errorf("ffmpeg not found: %w", err)
 	}
 
-	// Create temporary output file with proper extension so ffmpeg can detect format
+	if err := ValidateExecutable(ffmpegPath); err != nil {
+		return fmt.Errorf("invalid ffmpeg executable: %w", err)
+	}
+
 	tmpOutputFile := strings.TrimSuffix(filepath, pathfilepath.Ext(filepath)) + ".tmp" + pathfilepath.Ext(filepath)
 	defer func() {
-		// Only remove if file still exists (rename might have failed)
+
 		if _, err := os.Stat(tmpOutputFile); err == nil {
 			os.Remove(tmpOutputFile)
 		}
 	}()
 
-	// Use ffmpeg to copy file and add lyrics metadata
-	// For M4A, we need to use the correct metadata tag format and specify output format
-	// Use -f ipod for M4A format (iPod format is compatible with M4A)
 	cmd := exec.Command(ffmpegPath,
 		"-i", filepath,
 		"-map", "0",
@@ -560,12 +483,11 @@ func embedLyricsToM4A(filepath string, lyrics string) error {
 		"-metadata", "lyrics-eng="+lyrics,
 		"-metadata", "lyrics="+lyrics,
 		"-codec", "copy",
-		"-f", "ipod", // Explicitly specify M4A/iPod format
-		"-y", // Overwrite
+		"-f", "ipod",
+		"-y",
 		tmpOutputFile,
 	)
 
-	// Hide console window on Windows
 	setHideWindow(cmd)
 
 	output, err := cmd.CombinedOutput()
@@ -574,7 +496,6 @@ func embedLyricsToM4A(filepath string, lyrics string) error {
 		return fmt.Errorf("ffmpeg failed to embed lyrics: %s - %w", string(output), err)
 	}
 
-	// Replace original file with new file
 	if err := os.Rename(tmpOutputFile, filepath); err != nil {
 		return fmt.Errorf("failed to replace original file: %w", err)
 	}
@@ -583,12 +504,18 @@ func embedLyricsToM4A(filepath string, lyrics string) error {
 	return nil
 }
 
-// EmbedLyricsOnlyUniversal embeds lyrics to MP3, FLAC, or M4A file
 func EmbedLyricsOnlyUniversal(filepath string, lyrics string) error {
 	if lyrics == "" {
 		return nil
 	}
 
+	validatedLyrics, err := validateLyricsDuration(lyrics, filepath)
+	if err != nil {
+		fmt.Printf("[EmbedLyricsOnlyUniversal] Warning: Failed to validate lyrics duration: %v, using original lyrics\n", err)
+		validatedLyrics = lyrics
+	}
+	lyrics = validatedLyrics
+
 	ext := strings.ToLower(pathfilepath.Ext(filepath))
 	switch ext {
 	case ".mp3":
@@ -602,85 +529,454 @@ func EmbedLyricsOnlyUniversal(filepath string, lyrics string) error {
 	}
 }
 
-// FileExistenceResult represents the result of checking if a file exists
-type FileExistenceResult struct {
-	ISRC       string `json:"isrc"`
-	Exists     bool   `json:"exists"`
-	FilePath   string `json:"file_path,omitempty"`
-	TrackName  string `json:"track_name,omitempty"`
-	ArtistName string `json:"artist_name,omitempty"`
-}
+func GetAudioDuration(filepath string) (float64, error) {
+	ext := strings.ToLower(pathfilepath.Ext(filepath))
 
-// CheckFilesExistParallel checks if multiple files exist in parallel
-// It builds an ISRC index from the output directory once, then checks all tracks against it
-func CheckFilesExistParallel(outputDir string, tracks []struct {
-	ISRC       string
-	TrackName  string
-	ArtistName string
-}) []FileExistenceResult {
-	results := make([]FileExistenceResult, len(tracks))
-
-	// Build ISRC index from output directory (scan once)
-	isrcIndex := buildISRCIndex(outputDir)
-
-	// Check each track against the index (parallel)
-	var wg sync.WaitGroup
-	for i, track := range tracks {
-		wg.Add(1)
-		go func(idx int, t struct {
-			ISRC       string
-			TrackName  string
-			ArtistName string
-		}) {
-			defer wg.Done()
-
-			result := FileExistenceResult{
-				ISRC:       t.ISRC,
-				TrackName:  t.TrackName,
-				ArtistName: t.ArtistName,
-				Exists:     false,
-			}
-
-			if t.ISRC != "" {
-				if filePath, exists := isrcIndex[strings.ToUpper(t.ISRC)]; exists {
-					result.Exists = true
-					result.FilePath = filePath
-				}
-			}
-
-			results[idx] = result
-		}(i, track)
+	if ext == ".flac" {
+		duration, err := getFlacDuration(filepath)
+		if err == nil && duration > 0 {
+			return duration, nil
+		}
 	}
 
-	wg.Wait()
-	return results
+	return getDurationWithFFprobe(filepath)
 }
 
-// buildISRCIndex scans a directory and builds a map of ISRC -> file path
-func buildISRCIndex(outputDir string) map[string]string {
-	index := make(map[string]string)
+func getFlacDuration(filepath string) (float64, error) {
+	f, err := flac.ParseFile(filepath)
+	if err != nil {
+		return 0, err
+	}
 
-	// Walk directory recursively - only check .flac files for SpotiFLAC
-	pathfilepath.Walk(outputDir, func(path string, info os.FileInfo, err error) error {
-		if err != nil || info.IsDir() {
-			return nil
+	if len(f.Meta) > 0 {
+		streamInfo := f.Meta[0]
+		if streamInfo.Type == flac.StreamInfo {
+			data := streamInfo.Data
+			if len(data) >= 18 {
+
+				sampleRate := uint32(data[10])<<12 | uint32(data[11])<<4 | uint32(data[12])>>4
+
+				totalSamples := uint64(data[13]&0x0F)<<32 |
+					uint64(data[14])<<24 |
+					uint64(data[15])<<16 |
+					uint64(data[16])<<8 |
+					uint64(data[17])
+
+				if sampleRate > 0 {
+					return float64(totalSamples) / float64(sampleRate), nil
+				}
+			}
 		}
+	}
 
-		ext := strings.ToLower(pathfilepath.Ext(path))
-		if ext != ".flac" {
-			return nil
-		}
-
-		// Read ISRC from file
-		isrc, err := ReadISRCFromFile(path)
-		if err != nil || isrc == "" {
-			return nil
-		}
-
-		// Store in index (uppercase for case-insensitive matching)
-		index[strings.ToUpper(isrc)] = path
-		return nil
-	})
-
-	return index
+	return 0, fmt.Errorf("could not extract duration from FLAC file")
+}
+
+func getDurationWithFFprobe(filepath string) (float64, error) {
+	ffprobePath, err := GetFFprobePath()
+	if err != nil {
+		return 0, err
+	}
+
+	if err := ValidateExecutable(ffprobePath); err != nil {
+		return 0, fmt.Errorf("invalid ffprobe executable: %w", err)
+	}
+
+	cmd := exec.Command(ffprobePath,
+		"-v", "quiet",
+		"-print_format", "json",
+		"-show_format",
+		filepath,
+	)
+
+	setHideWindow(cmd)
+
+	output, err := cmd.Output()
+	if err != nil {
+		return 0, err
+	}
+
+	var result struct {
+		Format struct {
+			Duration string `json:"duration"`
+		} `json:"format"`
+	}
+
+	if err := json.Unmarshal(output, &result); err != nil {
+		return 0, err
+	}
+
+	if result.Format.Duration == "" {
+		return 0, fmt.Errorf("duration not found in ffprobe output")
+	}
+
+	duration, err := strconv.ParseFloat(result.Format.Duration, 64)
+	if err != nil {
+		return 0, err
+	}
+
+	return duration, nil
+}
+
+func validateLyricsDuration(lyrics string, filepath string) (string, error) {
+
+	duration, err := GetAudioDuration(filepath)
+	if err != nil {
+
+		fmt.Printf("[ValidateLyrics] Warning: Could not get audio duration: %v, skipping validation\n", err)
+		return lyrics, nil
+	}
+
+	if duration <= 0 {
+
+		fmt.Printf("[ValidateLyrics] Warning: Invalid duration (%f seconds), skipping validation\n", duration)
+		return lyrics, nil
+	}
+
+	durationMs := int64(duration * 1000)
+
+	lines := strings.Split(lyrics, "\n")
+	var validLines []string
+
+	for _, line := range lines {
+		trimmedLine := strings.TrimSpace(line)
+		if trimmedLine == "" {
+			validLines = append(validLines, line)
+			continue
+		}
+
+		if strings.HasPrefix(trimmedLine, "[") {
+
+			closeBracket := strings.Index(trimmedLine, "]")
+			if closeBracket > 0 {
+				timestampStr := trimmedLine[1:closeBracket]
+
+				ms := parseLRCTimestamp(timestampStr)
+				if ms >= 0 {
+					if ms <= durationMs {
+						validLines = append(validLines, line)
+					} else {
+						fmt.Printf("[ValidateLyrics] Filtered out line with timestamp %s (exceeds duration %d ms): %s\n", timestampStr, durationMs, trimmedLine)
+					}
+				} else {
+
+					validLines = append(validLines, line)
+				}
+				continue
+			}
+		} else {
+
+			validLines = append(validLines, line)
+		}
+	}
+
+	return strings.Join(validLines, "\n"), nil
+}
+
+func parseLRCTimestamp(timestamp string) int64 {
+	var minutes, seconds, centiseconds int64
+	n, _ := fmt.Sscanf(timestamp, "%d:%d.%d", &minutes, &seconds, &centiseconds)
+	if n >= 2 {
+		return minutes*60*1000 + seconds*1000 + centiseconds*10
+	}
+	return -1
+}
+
+func ExtractFullMetadataFromFile(filePath string) (Metadata, error) {
+	var metadata Metadata
+
+	ffprobePath, err := GetFFprobePath()
+	if err != nil {
+		return metadata, err
+	}
+
+	if err := ValidateExecutable(ffprobePath); err != nil {
+		return metadata, fmt.Errorf("invalid ffprobe executable: %w", err)
+	}
+
+	cmd := exec.Command(ffprobePath,
+		"-v", "quiet",
+		"-print_format", "json",
+		"-show_format",
+		"-show_streams",
+		filePath,
+	)
+
+	setHideWindow(cmd)
+
+	output, err := cmd.Output()
+	if err != nil {
+		return metadata, err
+	}
+
+	var result struct {
+		Format struct {
+			Tags map[string]string `json:"tags"`
+		} `json:"format"`
+		Streams []struct {
+			Tags map[string]string `json:"tags"`
+		} `json:"streams"`
+	}
+
+	if err := json.Unmarshal(output, &result); err != nil {
+		return metadata, err
+	}
+
+	allTags := make(map[string]string)
+
+	for _, stream := range result.Streams {
+		for key, value := range stream.Tags {
+			allTags[strings.ToLower(key)] = value
+		}
+	}
+
+	for key, value := range result.Format.Tags {
+		allTags[strings.ToLower(key)] = value
+	}
+
+	for key, value := range allTags {
+		switch key {
+		case "title":
+			metadata.Title = value
+		case "artist":
+			metadata.Artist = value
+		case "album":
+			metadata.Album = value
+		case "album_artist", "albumartist":
+			metadata.AlbumArtist = value
+		case "date", "year":
+			if metadata.Date == "" || len(value) > len(metadata.Date) {
+				metadata.Date = value
+			}
+		case "track":
+
+			parts := strings.Split(value, "/")
+			if len(parts) > 0 {
+				if num, err := strconv.Atoi(parts[0]); err == nil {
+					metadata.TrackNumber = num
+				}
+			}
+			if len(parts) > 1 {
+				if num, err := strconv.Atoi(parts[1]); err == nil {
+					metadata.TotalTracks = num
+				}
+			}
+		case "disc":
+
+			parts := strings.Split(value, "/")
+			if len(parts) > 0 {
+				if num, err := strconv.Atoi(parts[0]); err == nil {
+					metadata.DiscNumber = num
+				}
+			}
+			if len(parts) > 1 {
+				if num, err := strconv.Atoi(parts[1]); err == nil {
+					metadata.TotalDiscs = num
+				}
+			}
+		case "copyright", "tcop":
+			metadata.Copyright = value
+		case "publisher", "tpub", "label":
+			metadata.Publisher = value
+		case "url":
+			metadata.URL = value
+		case "description", "comment":
+			if metadata.Description == "" {
+				metadata.Description = value
+			}
+		}
+	}
+
+	return metadata, nil
+}
+
+func EmbedMetadataToConvertedFile(filePath string, metadata Metadata, coverPath string) error {
+	ext := strings.ToLower(pathfilepath.Ext(filePath))
+
+	switch ext {
+	case ".flac":
+
+		return EmbedMetadata(filePath, metadata, coverPath)
+	case ".mp3":
+		return embedMetadataToMP3(filePath, metadata, coverPath)
+	case ".m4a":
+		return embedMetadataToM4A(filePath, metadata, coverPath)
+	default:
+		return fmt.Errorf("unsupported file format: %s", ext)
+	}
+}
+
+func embedMetadataToMP3(filePath string, metadata Metadata, coverPath string) error {
+	tag, err := id3v2.Open(filePath, id3v2.Options{Parse: true})
+	if err != nil {
+		return fmt.Errorf("failed to open MP3 file: %w", err)
+	}
+	defer tag.Close()
+
+	tag.DeleteFrames("TXXX")
+
+	if metadata.Title != "" {
+		tag.SetTitle(metadata.Title)
+	}
+	if metadata.Artist != "" {
+		tag.SetArtist(metadata.Artist)
+	}
+	if metadata.Album != "" {
+		tag.SetAlbum(metadata.Album)
+	}
+	if metadata.Date != "" {
+		year := metadata.Date
+		if len(year) >= 4 {
+			year = year[:4]
+		}
+		tag.SetYear(year)
+	}
+
+	if metadata.AlbumArtist != "" {
+		tag.DeleteFrames("TPE2")
+		tag.AddTextFrame("TPE2", id3v2.EncodingUTF8, metadata.AlbumArtist)
+	}
+
+	if metadata.TrackNumber > 0 {
+		tag.DeleteFrames(tag.CommonID("Track number/Position in set"))
+		trackStr := strconv.Itoa(metadata.TrackNumber)
+		if metadata.TotalTracks > 0 {
+			trackStr = fmt.Sprintf("%d/%d", metadata.TrackNumber, metadata.TotalTracks)
+		}
+		tag.AddTextFrame(tag.CommonID("Track number/Position in set"), id3v2.EncodingUTF8, trackStr)
+	}
+
+	if metadata.DiscNumber > 0 {
+		tag.DeleteFrames(tag.CommonID("Part of a set"))
+		discStr := strconv.Itoa(metadata.DiscNumber)
+		if metadata.TotalDiscs > 0 {
+			discStr = fmt.Sprintf("%d/%d", metadata.DiscNumber, metadata.TotalDiscs)
+		}
+		tag.AddTextFrame(tag.CommonID("Part of a set"), id3v2.EncodingUTF8, discStr)
+	}
+
+	if metadata.Copyright != "" {
+		tag.DeleteFrames("TCOP")
+		tag.AddTextFrame("TCOP", id3v2.EncodingUTF8, metadata.Copyright)
+	}
+
+	if metadata.Publisher != "" {
+		tag.DeleteFrames("TPUB")
+		tag.AddTextFrame("TPUB", id3v2.EncodingUTF8, metadata.Publisher)
+	}
+
+	if metadata.ISRC != "" {
+		tag.DeleteFrames("TSRC")
+		tag.AddTextFrame("TSRC", id3v2.EncodingUTF8, metadata.ISRC)
+	}
+
+	if coverPath != "" && fileExists(coverPath) {
+
+		tag.DeleteFrames(tag.CommonID("Attached picture"))
+
+		artwork, err := os.ReadFile(coverPath)
+		if err == nil {
+			pic := id3v2.PictureFrame{
+				Encoding:    id3v2.EncodingUTF8,
+				MimeType:    "image/jpeg",
+				PictureType: id3v2.PTFrontCover,
+				Description: "Cover",
+				Picture:     artwork,
+			}
+			tag.AddAttachedPicture(pic)
+		} else {
+			fmt.Printf("[EmbedMetadataToMP3] Warning: Failed to read cover art file: %v\n", err)
+		}
+	}
+
+	if err := tag.Save(); err != nil {
+		return fmt.Errorf("failed to save MP3 tags: %w", err)
+	}
+
+	return nil
+}
+
+func embedMetadataToM4A(filePath string, metadata Metadata, coverPath string) error {
+	ffmpegPath, err := GetFFmpegPath()
+	if err != nil {
+		return fmt.Errorf("ffmpeg not found: %w", err)
+	}
+
+	if err := ValidateExecutable(ffmpegPath); err != nil {
+		return fmt.Errorf("invalid ffmpeg executable: %w", err)
+	}
+
+	args := []string{
+		"-i", filePath,
+		"-y",
+	}
+
+	if coverPath != "" && fileExists(coverPath) {
+		args = append(args, "-i", coverPath)
+		args = append(args, "-map", "0:a", "-map", "1", "-c:a", "copy", "-c:v", "copy", "-disposition:v:0", "attached_pic")
+	} else {
+		args = append(args, "-map", "0", "-codec", "copy")
+	}
+
+	if metadata.Title != "" {
+		args = append(args, "-metadata", "title="+metadata.Title)
+	}
+	if metadata.Artist != "" {
+		args = append(args, "-metadata", "artist="+metadata.Artist)
+	}
+	if metadata.Album != "" {
+		args = append(args, "-metadata", "album="+metadata.Album)
+	}
+	if metadata.AlbumArtist != "" {
+		args = append(args, "-metadata", "album_artist="+metadata.AlbumArtist)
+	}
+	if metadata.Date != "" {
+		args = append(args, "-metadata", "date="+metadata.Date)
+	}
+	if metadata.TrackNumber > 0 {
+		trackStr := strconv.Itoa(metadata.TrackNumber)
+		if metadata.TotalTracks > 0 {
+			trackStr = fmt.Sprintf("%d/%d", metadata.TrackNumber, metadata.TotalTracks)
+		}
+		args = append(args, "-metadata", "track="+trackStr)
+	}
+	if metadata.DiscNumber > 0 {
+		discStr := strconv.Itoa(metadata.DiscNumber)
+		if metadata.TotalDiscs > 0 {
+			discStr = fmt.Sprintf("%d/%d", metadata.DiscNumber, metadata.TotalDiscs)
+		}
+		args = append(args, "-metadata", "disk="+discStr)
+	}
+	if metadata.Copyright != "" {
+		args = append(args, "-metadata", "copyright="+metadata.Copyright)
+	}
+	if metadata.Publisher != "" {
+		args = append(args, "-metadata", "publisher="+metadata.Publisher)
+	}
+	if metadata.ISRC != "" {
+		args = append(args, "-metadata", "isrc="+metadata.ISRC)
+	}
+
+	tmpOutputFile := strings.TrimSuffix(filePath, pathfilepath.Ext(filePath)) + ".tmp" + pathfilepath.Ext(filePath)
+	defer func() {
+		if _, err := os.Stat(tmpOutputFile); err == nil {
+			os.Remove(tmpOutputFile)
+		}
+	}()
+
+	args = append(args, "-f", "ipod", tmpOutputFile)
+
+	cmd := exec.Command(ffmpegPath, args...)
+	setHideWindow(cmd)
+
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		return fmt.Errorf("ffmpeg failed to embed metadata: %s - %w", string(output), err)
+	}
+
+	if err := os.Rename(tmpOutputFile, filePath); err != nil {
+		return fmt.Errorf("failed to replace original file: %w", err)
+	}
+
+	return nil
 }

backend/progress.go

@@ -7,7 +7,6 @@ import (
 	"time"
 )
 
-// DownloadStatus represents the status of a download item
 type DownloadStatus string
 
 const (
@@ -18,24 +17,22 @@ const (
 	StatusSkipped     DownloadStatus = "skipped"
 )
 
-// DownloadItem represents a single item in the download queue
 type DownloadItem struct {
 	ID           string         `json:"id"`
 	TrackName    string         `json:"track_name"`
 	ArtistName   string         `json:"artist_name"`
 	AlbumName    string         `json:"album_name"`
-	ISRC         string         `json:"isrc"`
+	SpotifyID    string         `json:"spotify_id"`
 	Status       DownloadStatus `json:"status"`
-	Progress     float64        `json:"progress"`      // MB downloaded
-	TotalSize    float64        `json:"total_size"`    // MB total (if known)
-	Speed        float64        `json:"speed"`         // MB/s
-	StartTime    int64          `json:"start_time"`    // Unix timestamp
-	EndTime      int64          `json:"end_time"`      // Unix timestamp
-	ErrorMessage string         `json:"error_message"` // If failed
-	FilePath     string         `json:"file_path"`     // Final file path
+	Progress     float64        `json:"progress"`
+	TotalSize    float64        `json:"total_size"`
+	Speed        float64        `json:"speed"`
+	StartTime    int64          `json:"start_time"`
+	EndTime      int64          `json:"end_time"`
+	ErrorMessage string         `json:"error_message"`
+	FilePath     string         `json:"file_path"`
 }
 
-// Global progress tracker
 var (
 	currentProgress     float64
 	currentProgressLock sync.RWMutex
@@ -44,7 +41,6 @@ var (
 	currentSpeed        float64
 	speedLock           sync.RWMutex
 
-	// Download queue tracking
 	downloadQueue       []DownloadItem
 	downloadQueueLock   sync.RWMutex
 	currentItemID       string
@@ -55,27 +51,24 @@ var (
 	sessionStartLock    sync.RWMutex
 )
 
-// ProgressInfo represents download progress information
 type ProgressInfo struct {
 	IsDownloading bool    `json:"is_downloading"`
 	MBDownloaded  float64 `json:"mb_downloaded"`
 	SpeedMBps     float64 `json:"speed_mbps"`
 }
 
-// DownloadQueueInfo represents the complete download queue state
 type DownloadQueueInfo struct {
 	IsDownloading    bool           `json:"is_downloading"`
 	Queue            []DownloadItem `json:"queue"`
-	CurrentSpeed     float64        `json:"current_speed"`      // MB/s
-	TotalDownloaded  float64        `json:"total_downloaded"`   // MB this session
-	SessionStartTime int64          `json:"session_start_time"` // Unix timestamp
+	CurrentSpeed     float64        `json:"current_speed"`
+	TotalDownloaded  float64        `json:"total_downloaded"`
+	SessionStartTime int64          `json:"session_start_time"`
 	QueuedCount      int            `json:"queued_count"`
 	CompletedCount   int            `json:"completed_count"`
 	FailedCount      int            `json:"failed_count"`
 	SkippedCount     int            `json:"skipped_count"`
 }
 
-// GetDownloadProgress returns current download progress
 func GetDownloadProgress() ProgressInfo {
 	downloadingLock.RLock()
 	downloading := isDownloading
@@ -96,34 +89,30 @@ func GetDownloadProgress() ProgressInfo {
 	}
 }
 
-// SetDownloadSpeed updates the current download speed
 func SetDownloadSpeed(mbps float64) {
 	speedLock.Lock()
 	currentSpeed = mbps
 	speedLock.Unlock()
 }
 
-// SetDownloadProgress updates the current download progress
 func SetDownloadProgress(mbDownloaded float64) {
 	currentProgressLock.Lock()
 	currentProgress = mbDownloaded
 	currentProgressLock.Unlock()
 }
 
-// SetDownloading sets the downloading state
 func SetDownloading(downloading bool) {
 	downloadingLock.Lock()
 	isDownloading = downloading
 	downloadingLock.Unlock()
 
 	if !downloading {
-		// Reset progress when download completes
+
 		SetDownloadProgress(0)
 		SetDownloadSpeed(0)
 	}
 }
 
-// ProgressWriter wraps an io.Writer and reports download progress
 type ProgressWriter struct {
 	writer      io.Writer
 	total       int64
@@ -131,7 +120,7 @@ type ProgressWriter struct {
 	startTime   int64
 	lastTime    int64
 	lastBytes   int64
-	itemID      string // Track which download item this belongs to
+	itemID      string
 }
 
 func NewProgressWriter(writer io.Writer) *ProgressWriter {
@@ -147,7 +136,6 @@ func NewProgressWriter(writer io.Writer) *ProgressWriter {
 	}
 }
 
-// NewProgressWriterWithID creates a progress writer with an item ID for queue tracking
 func NewProgressWriterWithID(writer io.Writer, itemID string) *ProgressWriter {
 	pw := NewProgressWriter(writer)
 	pw.itemID = itemID
@@ -162,13 +150,11 @@ func (pw *ProgressWriter) Write(p []byte) (int, error) {
 	n, err := pw.writer.Write(p)
 	pw.total += int64(n)
 
-	// Report progress every 256KB for smoother updates
 	if pw.total-pw.lastPrinted >= 256*1024 {
 		mbDownloaded := float64(pw.total) / (1024 * 1024)
 
-		// Calculate speed (MB/s)
 		now := getCurrentTimeMillis()
-		timeDiff := float64(now-pw.lastTime) / 1000.0 // seconds
+		timeDiff := float64(now-pw.lastTime) / 1000.0
 		bytesDiff := float64(pw.total - pw.lastBytes)
 
 		var speedMBps float64
@@ -180,10 +166,8 @@ func (pw *ProgressWriter) Write(p []byte) (int, error) {
 			fmt.Printf("\rDownloaded: %.2f MB", mbDownloaded)
 		}
 
-		// Update global progress
 		SetDownloadProgress(mbDownloaded)
 
-		// Update individual item progress if we have an item ID
 		if pw.itemID != "" {
 			UpdateItemProgress(pw.itemID, mbDownloaded, speedMBps)
 		}
@@ -200,10 +184,7 @@ func (pw *ProgressWriter) GetTotal() int64 {
 	return pw.total
 }
 
-// Queue management functions
-
-// AddToQueue adds a new item to the download queue
-func AddToQueue(id, trackName, artistName, albumName, isrc string) {
+func AddToQueue(id, trackName, artistName, albumName, spotifyID string) {
 	downloadQueueLock.Lock()
 	defer downloadQueueLock.Unlock()
 
@@ -212,7 +193,7 @@ func AddToQueue(id, trackName, artistName, albumName, isrc string) {
 		TrackName:  trackName,
 		ArtistName: artistName,
 		AlbumName:  albumName,
-		ISRC:       isrc,
+		SpotifyID:  spotifyID,
 		Status:     StatusQueued,
 		Progress:   0,
 		TotalSize:  0,
@@ -223,7 +204,6 @@ func AddToQueue(id, trackName, artistName, albumName, isrc string) {
 
 	downloadQueue = append(downloadQueue, item)
 
-	// Initialize session start time if this is the first item
 	sessionStartLock.Lock()
 	if sessionStartTime == 0 {
 		sessionStartTime = time.Now().Unix()
@@ -231,7 +211,6 @@ func AddToQueue(id, trackName, artistName, albumName, isrc string) {
 	sessionStartLock.Unlock()
 }
 
-// StartDownloadItem marks an item as currently downloading
 func StartDownloadItem(id string) {
 	downloadQueueLock.Lock()
 	defer downloadQueueLock.Unlock()
@@ -250,7 +229,6 @@ func StartDownloadItem(id string) {
 	currentItemLock.Unlock()
 }
 
-// UpdateItemProgress updates the progress of the current download item
 func UpdateItemProgress(id string, progress, speed float64) {
 	downloadQueueLock.Lock()
 	defer downloadQueueLock.Unlock()
@@ -264,14 +242,12 @@ func UpdateItemProgress(id string, progress, speed float64) {
 	}
 }
 
-// GetCurrentItemID returns the ID of the currently downloading item
 func GetCurrentItemID() string {
 	currentItemLock.RLock()
 	defer currentItemLock.RUnlock()
 	return currentItemID
 }
 
-// CompleteDownloadItem marks an item as completed
 func CompleteDownloadItem(id, filePath string, finalSize float64) {
 	downloadQueueLock.Lock()
 	defer downloadQueueLock.Unlock()
@@ -284,7 +260,6 @@ func CompleteDownloadItem(id, filePath string, finalSize float64) {
 			downloadQueue[i].Progress = finalSize
 			downloadQueue[i].TotalSize = finalSize
 
-			// Add to total downloaded
 			totalDownloadedLock.Lock()
 			totalDownloaded += finalSize
 			totalDownloadedLock.Unlock()
@@ -293,7 +268,6 @@ func CompleteDownloadItem(id, filePath string, finalSize float64) {
 	}
 }
 
-// FailDownloadItem marks an item as failed
 func FailDownloadItem(id, errorMsg string) {
 	downloadQueueLock.Lock()
 	defer downloadQueueLock.Unlock()
@@ -308,7 +282,6 @@ func FailDownloadItem(id, errorMsg string) {
 	}
 }
 
-// SkipDownloadItem marks an item as skipped (already exists)
 func SkipDownloadItem(id, filePath string) {
 	downloadQueueLock.Lock()
 	defer downloadQueueLock.Unlock()
@@ -323,9 +296,8 @@ func SkipDownloadItem(id, filePath string) {
 	}
 }
 
-// GetDownloadQueue returns the complete download queue state
 func GetDownloadQueue() DownloadQueueInfo {
-	// Auto-reset session if all downloads are complete
+
 	ResetSessionIfComplete()
 
 	downloadQueueLock.RLock()
@@ -347,7 +319,6 @@ func GetDownloadQueue() DownloadQueueInfo {
 	sessionStart := sessionStartTime
 	sessionStartLock.RUnlock()
 
-	// Count statuses
 	var queued, completed, failed, skipped int
 	for _, item := range downloadQueue {
 		switch item.Status {
@@ -362,7 +333,6 @@ func GetDownloadQueue() DownloadQueueInfo {
 		}
 	}
 
-	// Create a copy of the queue
 	queueCopy := make([]DownloadItem, len(downloadQueue))
 	copy(queueCopy, downloadQueue)
 
@@ -379,12 +349,10 @@ func GetDownloadQueue() DownloadQueueInfo {
 	}
 }
 
-// ClearDownloadQueue clears all completed, failed, and skipped items from the queue
 func ClearDownloadQueue() {
 	downloadQueueLock.Lock()
 	defer downloadQueueLock.Unlock()
 
-	// Keep only queued and downloading items
 	newQueue := make([]DownloadItem, 0)
 	for _, item := range downloadQueue {
 		if item.Status == StatusQueued || item.Status == StatusDownloading {
@@ -394,7 +362,6 @@ func ClearDownloadQueue() {
 	downloadQueue = newQueue
 }
 
-// ClearAllDownloads clears the entire queue and resets session stats
 func ClearAllDownloads() {
 	downloadQueueLock.Lock()
 	downloadQueue = []DownloadItem{}
@@ -412,13 +379,10 @@ func ClearAllDownloads() {
 	currentItemID = ""
 	currentItemLock.Unlock()
 
-	// Reset current progress and speed
 	SetDownloadProgress(0)
 	SetDownloadSpeed(0)
 }
 
-// CancelAllQueuedItems marks all queued items as skipped (cancelled)
-// This is called when user stops a download or when batch download completes
 func CancelAllQueuedItems() {
 	downloadQueueLock.Lock()
 	defer downloadQueueLock.Unlock()
@@ -432,8 +396,6 @@ func CancelAllQueuedItems() {
 	}
 }
 
-// ResetSessionIfComplete resets session stats if no active or queued downloads
-// Note: Does NOT clear the queue - items remain visible for history
 func ResetSessionIfComplete() {
 	downloadQueueLock.RLock()
 	hasActiveOrQueued := false
@@ -445,8 +407,6 @@ func ResetSessionIfComplete() {
 	}
 	downloadQueueLock.RUnlock()
 
-	// If no active or queued items, reset session stats
-	// But keep the queue items for history visibility
 	if !hasActiveOrQueued {
 		sessionStartLock.Lock()
 		sessionStartTime = 0

backend/qobuz.go

@@ -1,10 +1,10 @@
 package backend
 
 import (
-	"encoding/base64"
 	"encoding/json"
 	"fmt"
 	"io"
+	"math/rand"
 	"net/http"
 	"os"
 	"path/filepath"
@@ -77,10 +77,9 @@ func NewQobuzDownloader() *QobuzDownloader {
 	}
 }
 
-func (q *QobuzDownloader) SearchByISRC(isrc string) (*QobuzTrack, error) {
-	// Decode base64 API URL
-	apiBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly93d3cucW9idXouY29tL2FwaS5qc29uLzAuMi90cmFjay9zZWFyY2g/cXVlcnk9")
-	url := fmt.Sprintf("%s%s&limit=1&app_id=%s", string(apiBase), isrc, q.appID)
+func (q *QobuzDownloader) searchByISRC(isrc string) (*QobuzTrack, error) {
+	apiBase := "https://www.qobuz.com/api.json/0.2/track/search?query="
+	url := fmt.Sprintf("%s%s&limit=1&app_id=%s", apiBase, isrc, q.appID)
 
 	resp, err := q.client.Get(url)
 	if err != nil {
@@ -93,7 +92,7 @@ func (q *QobuzDownloader) SearchByISRC(isrc string) (*QobuzTrack, error) {
 	}
 
 	var searchResp QobuzSearchResponse
-	// Read body first to handle encoding issues
+
 	body, err := io.ReadAll(resp.Body)
 	if err != nil {
 		return nil, fmt.Errorf("failed to read response body: %w", err)
@@ -104,7 +103,7 @@ func (q *QobuzDownloader) SearchByISRC(isrc string) (*QobuzTrack, error) {
 	}
 
 	if err := json.Unmarshal(body, &searchResp); err != nil {
-		// Truncate body for error message (max 200 chars)
+
 		bodyStr := string(body)
 		if len(bodyStr) > 200 {
 			bodyStr = bodyStr[:200] + "..."
@@ -119,93 +118,211 @@ func (q *QobuzDownloader) SearchByISRC(isrc string) (*QobuzTrack, error) {
 	return &searchResp.Tracks.Items[0], nil
 }
 
-func (q *QobuzDownloader) GetDownloadURL(trackID int64, quality string) (string, error) {
-	// Map quality to Qobuz quality code
-	// Qobuz uses: 5 (MP3 320), 6 (FLAC 16-bit), 7 (FLAC 24-bit), 27 (Hi-Res)
-	qualityCode := quality // Use the provided quality parameter
-	if qualityCode == "" {
-		qualityCode = "6" // Default to FLAC 16-bit if not specified
+func decodeXOR(data []byte) string {
+	text := string(data)
+	runes := []rune(text)
+	result := make([]rune, len(runes))
+	for i, char := range runes {
+		key := rune((i * 17) % 128)
+		result[i] = char ^ 253 ^ key
 	}
+	return string(result)
+}
 
-	fmt.Printf("Getting download URL for track ID: %d with requested quality: %s\n", trackID, qualityCode)
-	fmt.Printf("Quality codes: 6=FLAC 16-bit, 7=FLAC 24-bit, 27=Hi-Res\n")
-
-	// Decode base64 API URLs
-	primaryBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9kYWIueWVldC5zdS9hcGkvc3RyZWFtP3RyYWNrSWQ9")
-
-	// Try primary API first
-	primaryURL := fmt.Sprintf("%s%d&quality=%s", string(primaryBase), trackID, qualityCode)
-	fmt.Printf("Qobuz API URL: %s\n", primaryURL)
-
-	resp, err := q.client.Get(primaryURL)
-	if err == nil && resp.StatusCode == 200 {
-		defer resp.Body.Close()
-
-		body, _ := io.ReadAll(resp.Body)
-		fmt.Printf("Primary API response: %s\n", string(body))
-
-		var streamResp QobuzStreamResponse
-		if err := json.Unmarshal(body, &streamResp); err == nil && streamResp.URL != "" {
-			fmt.Printf("Got download URL from primary API\n")
-			return streamResp.URL, nil
-		}
-	}
-	if resp != nil {
-		resp.Body.Close()
+func (q *QobuzDownloader) mapJumoQuality(quality string) int {
+	switch quality {
+	case "6":
+		return 6
+	case "7":
+		return 7
+	case "27":
+		return 27
+	default:
+		return 6
 	}
+}
 
-	// Fallback to secondary API
-	fmt.Println("Primary API failed, trying fallback...")
-	fallbackBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9kYWJtdXNpYy54eXovYXBpL3N0cmVhbT90cmFja0lkPQ==")
-	fallbackURL := fmt.Sprintf("%s%d&quality=%s", string(fallbackBase), trackID, qualityCode)
+func (q *QobuzDownloader) DownloadFromJumo(trackID int64, quality string) (string, error) {
+	formatID := q.mapJumoQuality(quality)
+	region := "US"
+	url := fmt.Sprintf("https://jumo-dl.pages.dev/get?track_id=%d&format_id=%d&region=%s", trackID, formatID, region)
 
-	resp, err = q.client.Get(fallbackURL)
+	client := &http.Client{Timeout: 30 * time.Second}
+
+	req, err := http.NewRequest("GET", url, nil)
 	if err != nil {
-		return "", fmt.Errorf("failed to get download URL: %w", err)
+		return "", err
+	}
+
+	req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36")
+	req.Header.Set("Referer", "https://jumo-dl.pages.dev/")
+
+	resp, err := client.Do(req)
+	if err != nil {
+		return "", err
 	}
 	defer resp.Body.Close()
 
 	if resp.StatusCode != 200 {
-		body, _ := io.ReadAll(resp.Body)
-		fmt.Printf("Fallback API error response: %s\n", string(body))
-		return "", fmt.Errorf("API returned status %d", resp.StatusCode)
+		return "", fmt.Errorf("HTTP %d", resp.StatusCode)
 	}
 
 	body, err := io.ReadAll(resp.Body)
 	if err != nil {
-		return "", fmt.Errorf("failed to read response body: %w", err)
+		return "", err
+	}
+
+	var result struct {
+		URL string `json:"url"`
+	}
+
+	if err := json.Unmarshal(body, &result); err != nil {
+
+		decoded := decodeXOR(body)
+		if err := json.Unmarshal([]byte(decoded), &result); err != nil {
+			return "", fmt.Errorf("failed to parse JSON (plain or XOR): %w", err)
+		}
+	}
+
+	if result.URL != "" {
+		return result.URL, nil
+	}
+
+	return "", fmt.Errorf("URL not found in Jumo response")
+}
+
+func (q *QobuzDownloader) DownloadFromStandard(apiBase string, trackID int64, quality string) (string, error) {
+	apiURL := fmt.Sprintf("%s%d&quality=%s", apiBase, trackID, quality)
+	resp, err := q.client.Get(apiURL)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		return "", fmt.Errorf("status %d", resp.StatusCode)
+	}
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", err
 	}
 
 	if len(body) == 0 {
-		return "", fmt.Errorf("API returned empty response")
+		return "", fmt.Errorf("empty body")
 	}
 
-	fmt.Printf("Fallback API response: %s\n", string(body))
-
 	var streamResp QobuzStreamResponse
-	if err := json.Unmarshal(body, &streamResp); err != nil {
-		// Truncate body for error message (max 200 chars)
-		bodyStr := string(body)
-		if len(bodyStr) > 200 {
-			bodyStr = bodyStr[:200] + "..."
+	if err := json.Unmarshal(body, &streamResp); err == nil && streamResp.URL != "" {
+		return streamResp.URL, nil
+	}
+
+	var nestedResp struct {
+		Data struct {
+			URL string `json:"url"`
+		} `json:"data"`
+	}
+	if err := json.Unmarshal(body, &nestedResp); err == nil && nestedResp.Data.URL != "" {
+		return nestedResp.Data.URL, nil
+	}
+
+	return "", fmt.Errorf("invalid response")
+}
+
+func (q *QobuzDownloader) GetDownloadURL(trackID int64, quality string, allowFallback bool) (string, error) {
+	qualityCode := quality
+	if qualityCode == "" || qualityCode == "5" {
+		qualityCode = "6"
+	}
+
+	fmt.Printf("Getting download URL for track ID: %d with requested quality: %s\n", trackID, qualityCode)
+
+	standardAPIs := []string{
+		"https://dab.yeet.su/api/stream?trackId=",
+		"https://dabmusic.xyz/api/stream?trackId=",
+		"https://qobuz.squid.wtf/api/download-music?track_id=",
+	}
+
+	downloadFunc := func(qual string) (string, error) {
+		type Provider struct {
+			Name string
+			Func func() (string, error)
 		}
-		return "", fmt.Errorf("failed to decode response: %w (response: %s)", err, bodyStr)
+
+		var providers []Provider
+
+		for _, api := range standardAPIs {
+			currentAPI := api
+			providers = append(providers, Provider{
+				Name: "Standard(" + currentAPI + ")",
+				Func: func() (string, error) {
+					return q.DownloadFromStandard(currentAPI, trackID, qual)
+				},
+			})
+		}
+
+		providers = append(providers, Provider{
+			Name: "Jumo-DL",
+			Func: func() (string, error) {
+				return q.DownloadFromJumo(trackID, qual)
+			},
+		})
+
+		rand.Seed(time.Now().UnixNano())
+		rand.Shuffle(len(providers), func(i, j int) { providers[i], providers[j] = providers[j], providers[i] })
+
+		var lastErr error
+		for _, p := range providers {
+
+			fmt.Printf("Trying Provider: %s (Quality: %s)...\n", p.Name, qual)
+
+			url, err := p.Func()
+			if err == nil {
+				fmt.Printf("✓ Success\n")
+				return url, nil
+			}
+
+			fmt.Printf("Provider failed: %v\n", err)
+			lastErr = err
+		}
+		return "", lastErr
 	}
 
-	if streamResp.URL == "" {
-		return "", fmt.Errorf("no download URL available")
+	url, err := downloadFunc(qualityCode)
+	if err == nil {
+		return url, nil
 	}
 
-	fmt.Printf("Got download URL from fallback API\n")
-	return streamResp.URL, nil
+	currentQuality := qualityCode
+
+	if currentQuality == "27" && allowFallback {
+		fmt.Printf("⚠ Download with quality 27 failed, trying fallback to 7 (24-bit Standard)...\n")
+		url, err := downloadFunc("7")
+		if err == nil {
+			fmt.Println("✓ Success with fallback quality 7")
+			return url, nil
+		}
+
+		currentQuality = "7"
+	}
+
+	if currentQuality == "7" && allowFallback {
+		fmt.Printf("⚠ Download with quality 7 failed, trying fallback to 6 (16-bit Lossless)...\n")
+		url, err := downloadFunc("6")
+		if err == nil {
+			fmt.Println("✓ Success with fallback quality 6")
+			return url, nil
+		}
+	}
+
+	return "", fmt.Errorf("all APIs and fallbacks failed. Last error: %v", err)
 }
 
 func (q *QobuzDownloader) DownloadFile(url, filepath string) error {
 	fmt.Println("Starting file download...")
-	// Use a separate client with a longer timeout. The default client's 60s limit
-	// causes downloads to fail on slow connections or for large Hi-Res files.
+
 	downloadClient := &http.Client{
-		Timeout: 5 * time.Minute, // 5 minutes for large files
+		Timeout: 5 * time.Minute,
 	}
 
 	resp, err := downloadClient.Get(url)
@@ -226,14 +343,13 @@ func (q *QobuzDownloader) DownloadFile(url, filepath string) error {
 	defer out.Close()
 
 	fmt.Println("Downloading...")
-	// Use progress writer to track download
+
 	pw := NewProgressWriter(out)
 	_, err = io.Copy(pw, resp.Body)
 	if err != nil {
 		return fmt.Errorf("failed to write file: %w", err)
 	}
 
-	// Print final size
 	fmt.Printf("\rDownloaded: %.2f MB (Complete)\n", float64(pw.GetTotal())/(1024*1024))
 	return nil
 }
@@ -266,19 +382,16 @@ func (q *QobuzDownloader) DownloadCoverArt(coverURL, filepath string) error {
 func buildQobuzFilename(title, artist, album, albumArtist, releaseDate string, trackNumber, discNumber int, format string, includeTrackNumber bool, position int, useAlbumTrackNumber bool) string {
 	var filename string
 
-	// Determine track number to use
 	numberToUse := position
 	if useAlbumTrackNumber && trackNumber > 0 {
 		numberToUse = trackNumber
 	}
 
-	// Extract year from release date (format: YYYY-MM-DD or YYYY)
 	year := ""
 	if len(releaseDate) >= 4 {
 		year = releaseDate[:4]
 	}
 
-	// Check if format is a template (contains {})
 	if strings.Contains(format, "{") {
 		filename = format
 		filename = strings.ReplaceAll(filename, "{title}", title)
@@ -287,34 +400,31 @@ func buildQobuzFilename(title, artist, album, albumArtist, releaseDate string, t
 		filename = strings.ReplaceAll(filename, "{album_artist}", albumArtist)
 		filename = strings.ReplaceAll(filename, "{year}", year)
 
-		// Handle disc number
 		if discNumber > 0 {
 			filename = strings.ReplaceAll(filename, "{disc}", fmt.Sprintf("%d", discNumber))
 		} else {
 			filename = strings.ReplaceAll(filename, "{disc}", "")
 		}
 
-		// Handle track number - if numberToUse is 0, remove {track} and surrounding separators
 		if numberToUse > 0 {
 			filename = strings.ReplaceAll(filename, "{track}", fmt.Sprintf("%02d", numberToUse))
 		} else {
-			// Remove {track} with common separators
+
 			filename = regexp.MustCompile(`\{track\}\.\s*`).ReplaceAllString(filename, "")
 			filename = regexp.MustCompile(`\{track\}\s*-\s*`).ReplaceAllString(filename, "")
 			filename = regexp.MustCompile(`\{track\}\s*`).ReplaceAllString(filename, "")
 		}
 	} else {
-		// Legacy format support
+
 		switch format {
 		case "artist-title":
 			filename = fmt.Sprintf("%s - %s", artist, title)
 		case "title":
 			filename = title
-		default: // "title-artist"
+		default:
 			filename = fmt.Sprintf("%s - %s", title, artist)
 		}
 
-		// Add track number prefix if enabled (legacy behavior)
 		if includeTrackNumber && position > 0 {
 			filename = fmt.Sprintf("%02d. %s", numberToUse, filename)
 		}
@@ -323,22 +433,36 @@ func buildQobuzFilename(title, artist, album, albumArtist, releaseDate string, t
 	return filename + ".flac"
 }
 
-func (q *QobuzDownloader) DownloadByISRC(isrc, outputDir, quality, filenameFormat string, includeTrackNumber bool, position int, spotifyTrackName, spotifyArtistName, spotifyAlbumName, spotifyAlbumArtist, spotifyReleaseDate string, useAlbumTrackNumber bool, spotifyCoverURL string, embedMaxQualityCover bool, spotifyTrackNumber, spotifyDiscNumber, spotifyTotalTracks int) (string, error) {
-	fmt.Printf("Fetching track info for ISRC: %s\n", isrc)
+func (q *QobuzDownloader) DownloadTrack(spotifyID, outputDir, quality, filenameFormat string, includeTrackNumber bool, position int, spotifyTrackName, spotifyArtistName, spotifyAlbumName, spotifyAlbumArtist, spotifyReleaseDate string, useAlbumTrackNumber bool, spotifyCoverURL string, embedMaxQualityCover bool, spotifyTrackNumber, spotifyDiscNumber, spotifyTotalTracks int, spotifyTotalDiscs int, spotifyCopyright, spotifyPublisher, spotifyURL string, allowFallback bool, useFirstArtistOnly bool) (string, error) {
+	var deezerISRC string
+	if spotifyID != "" {
+		songlinkClient := NewSongLinkClient()
+		isrc, err := songlinkClient.GetISRC(spotifyID)
+		if err != nil {
+			return "", fmt.Errorf("failed to get ISRC: %v", err)
+		}
+		deezerISRC = isrc
+	} else {
+		return "", fmt.Errorf("spotify ID is required for Qobuz download")
+	}
+
+	return q.DownloadTrackWithISRC(deezerISRC, spotifyID, outputDir, quality, filenameFormat, includeTrackNumber, position, spotifyTrackName, spotifyArtistName, spotifyAlbumName, spotifyAlbumArtist, spotifyReleaseDate, useAlbumTrackNumber, spotifyCoverURL, embedMaxQualityCover, spotifyTrackNumber, spotifyDiscNumber, spotifyTotalTracks, spotifyTotalDiscs, spotifyCopyright, spotifyPublisher, spotifyURL, allowFallback, useFirstArtistOnly)
+}
+
+func (q *QobuzDownloader) DownloadTrackWithISRC(deezerISRC, spotifyID, outputDir, quality, filenameFormat string, includeTrackNumber bool, position int, spotifyTrackName, spotifyArtistName, spotifyAlbumName, spotifyAlbumArtist, spotifyReleaseDate string, useAlbumTrackNumber bool, spotifyCoverURL string, embedMaxQualityCover bool, spotifyTrackNumber, spotifyDiscNumber, spotifyTotalTracks int, spotifyTotalDiscs int, spotifyCopyright, spotifyPublisher, spotifyURL string, allowFallback bool, useFirstArtistOnly bool) (string, error) {
+	fmt.Printf("Fetching track info for ISRC: %s\n", deezerISRC)
 
-	// Create output directory if it doesn't exist
 	if outputDir != "." {
 		if err := os.MkdirAll(outputDir, 0755); err != nil {
 			return "", fmt.Errorf("failed to create output directory: %w", err)
 		}
 	}
 
-	track, err := q.SearchByISRC(isrc)
+	track, err := q.searchByISRC(deezerISRC)
 	if err != nil {
 		return "", err
 	}
 
-	// All metadata from Spotify - no fallback to Qobuz
 	artists := spotifyArtistName
 	trackTitle := spotifyTrackName
 	albumTitle := spotifyAlbumName
@@ -353,7 +477,7 @@ func (q *QobuzDownloader) DownloadByISRC(isrc, outputDir, quality, filenameForma
 	fmt.Printf("Quality: %s\n", qualityInfo)
 
 	fmt.Println("Getting download URL...")
-	downloadURL, err := q.GetDownloadURL(track.ID, quality)
+	downloadURL, err := q.GetDownloadURL(track.ID, quality, allowFallback)
 	if err != nil {
 		return "", fmt.Errorf("failed to get download URL: %w", err)
 	}
@@ -362,7 +486,6 @@ func (q *QobuzDownloader) DownloadByISRC(isrc, outputDir, quality, filenameForma
 		return "", fmt.Errorf("received empty download URL")
 	}
 
-	// Show partial URL for security
 	urlPreview := downloadURL
 	if len(downloadURL) > 60 {
 		urlPreview = downloadURL[:60] + "..."
@@ -370,17 +493,16 @@ func (q *QobuzDownloader) DownloadByISRC(isrc, outputDir, quality, filenameForma
 	fmt.Printf("Download URL obtained: %s\n", urlPreview)
 
 	safeArtist := sanitizeFilename(artists)
-	safeTitle := sanitizeFilename(trackTitle)
-	safeAlbum := sanitizeFilename(albumTitle)
 	safeAlbumArtist := sanitizeFilename(spotifyAlbumArtist)
 
-	// Check if file with same ISRC already exists (use Spotify ISRC)
-	if existingFile, exists := CheckISRCExists(outputDir, isrc); exists {
-		fmt.Printf("File with ISRC %s already exists: %s\n", isrc, existingFile)
-		return "EXISTS:" + existingFile, nil
+	if useFirstArtistOnly {
+		safeArtist = sanitizeFilename(GetFirstArtist(artists))
+		safeAlbumArtist = sanitizeFilename(GetFirstArtist(spotifyAlbumArtist))
 	}
 
-	// Build filename based on format settings (use Spotify track number)
+	safeTitle := sanitizeFilename(trackTitle)
+	safeAlbum := sanitizeFilename(albumTitle)
+
 	filename := buildQobuzFilename(safeTitle, safeArtist, safeAlbum, safeAlbumArtist, spotifyReleaseDate, spotifyTrackNumber, spotifyDiscNumber, filenameFormat, includeTrackNumber, position, useAlbumTrackNumber)
 	filepath := filepath.Join(outputDir, filename)
 
@@ -397,7 +519,7 @@ func (q *QobuzDownloader) DownloadByISRC(isrc, outputDir, quality, filenameForma
 	fmt.Printf("Downloaded: %s\n", filepath)
 
 	coverPath := ""
-	// Use Spotify cover URL (with max resolution if enabled) - all metadata from Spotify
+
 	if spotifyCoverURL != "" {
 		coverPath = filepath + ".cover.jpg"
 		coverClient := NewCoverClient()
@@ -412,24 +534,26 @@ func (q *QobuzDownloader) DownloadByISRC(isrc, outputDir, quality, filenameForma
 
 	fmt.Println("Embedding metadata and cover art...")
 
-	// Determine track number to embed - ALL from Spotify
 	trackNumberToEmbed := spotifyTrackNumber
-	if position > 0 && !useAlbumTrackNumber {
-		trackNumberToEmbed = position // Use playlist position
+	if trackNumberToEmbed == 0 {
+		trackNumberToEmbed = 1
 	}
 
-	// ALL metadata from Spotify
 	metadata := Metadata{
 		Title:       trackTitle,
 		Artist:      artists,
 		Album:       albumTitle,
 		AlbumArtist: spotifyAlbumArtist,
-		Date:        spotifyReleaseDate, // Recorded date (full date YYYY-MM-DD)
+		Date:        spotifyReleaseDate,
 		TrackNumber: trackNumberToEmbed,
-		TotalTracks: spotifyTotalTracks, // Total tracks in album from Spotify
-		DiscNumber:  spotifyDiscNumber,  // Disc number from Spotify
-		ISRC:        isrc,               // ISRC from Spotify (passed as parameter)
+		TotalTracks: spotifyTotalTracks,
+		DiscNumber:  spotifyDiscNumber,
+		TotalDiscs:  spotifyTotalDiscs,
+		URL:         spotifyURL,
+		Copyright:   spotifyCopyright,
+		Publisher:   spotifyPublisher,
 		Description: "https://github.com/afkarxyz/SpotiFLAC",
+		ISRC:        deezerISRC,
 	}
 
 	if err := EmbedMetadata(filepath, metadata, coverPath); err != nil {

backend/romaji.go

@@ -1,222 +0,0 @@
-package backend
-
-import (
-	"strings"
-	"unicode"
-)
-
-// Hiragana to Romaji mapping
-var hiraganaToRomaji = map[rune]string{
-	'あ': "a", 'い': "i", 'う': "u", 'え': "e", 'お': "o",
-	'か': "ka", 'き': "ki", 'く': "ku", 'け': "ke", 'こ': "ko",
-	'さ': "sa", 'し': "shi", 'す': "su", 'せ': "se", 'そ': "so",
-	'た': "ta", 'ち': "chi", 'つ': "tsu", 'て': "te", 'と': "to",
-	'な': "na", 'に': "ni", 'ぬ': "nu", 'ね': "ne", 'の': "no",
-	'は': "ha", 'ひ': "hi", 'ふ': "fu", 'へ': "he", 'ほ': "ho",
-	'ま': "ma", 'み': "mi", 'む': "mu", 'め': "me", 'も': "mo",
-	'や': "ya", 'ゆ': "yu", 'よ': "yo",
-	'ら': "ra", 'り': "ri", 'る': "ru", 'れ': "re", 'ろ': "ro",
-	'わ': "wa", 'を': "wo", 'ん': "n",
-	// Dakuten (voiced)
-	'が': "ga", 'ぎ': "gi", 'ぐ': "gu", 'げ': "ge", 'ご': "go",
-	'ざ': "za", 'じ': "ji", 'ず': "zu", 'ぜ': "ze", 'ぞ': "zo",
-	'だ': "da", 'ぢ': "ji", 'づ': "zu", 'で': "de", 'ど': "do",
-	'ば': "ba", 'び': "bi", 'ぶ': "bu", 'べ': "be", 'ぼ': "bo",
-	// Handakuten (semi-voiced)
-	'ぱ': "pa", 'ぴ': "pi", 'ぷ': "pu", 'ぺ': "pe", 'ぽ': "po",
-	// Small characters
-	'ゃ': "ya", 'ゅ': "yu", 'ょ': "yo",
-	'っ': "", // Double consonant marker
-	'ぁ': "a", 'ぃ': "i", 'ぅ': "u", 'ぇ': "e", 'ぉ': "o",
-}
-
-// Katakana to Romaji mapping
-var katakanaToRomaji = map[rune]string{
-	'ア': "a", 'イ': "i", 'ウ': "u", 'エ': "e", 'オ': "o",
-	'カ': "ka", 'キ': "ki", 'ク': "ku", 'ケ': "ke", 'コ': "ko",
-	'サ': "sa", 'シ': "shi", 'ス': "su", 'セ': "se", 'ソ': "so",
-	'タ': "ta", 'チ': "chi", 'ツ': "tsu", 'テ': "te", 'ト': "to",
-	'ナ': "na", 'ニ': "ni", 'ヌ': "nu", 'ネ': "ne", 'ノ': "no",
-	'ハ': "ha", 'ヒ': "hi", 'フ': "fu", 'ヘ': "he", 'ホ': "ho",
-	'マ': "ma", 'ミ': "mi", 'ム': "mu", 'メ': "me", 'モ': "mo",
-	'ヤ': "ya", 'ユ': "yu", 'ヨ': "yo",
-	'ラ': "ra", 'リ': "ri", 'ル': "ru", 'レ': "re", 'ロ': "ro",
-	'ワ': "wa", 'ヲ': "wo", 'ン': "n",
-	// Dakuten (voiced)
-	'ガ': "ga", 'ギ': "gi", 'グ': "gu", 'ゲ': "ge", 'ゴ': "go",
-	'ザ': "za", 'ジ': "ji", 'ズ': "zu", 'ゼ': "ze", 'ゾ': "zo",
-	'ダ': "da", 'ヂ': "ji", 'ヅ': "zu", 'デ': "de", 'ド': "do",
-	'バ': "ba", 'ビ': "bi", 'ブ': "bu", 'ベ': "be", 'ボ': "bo",
-	// Handakuten (semi-voiced)
-	'パ': "pa", 'ピ': "pi", 'プ': "pu", 'ペ': "pe", 'ポ': "po",
-	// Small characters
-	'ャ': "ya", 'ュ': "yu", 'ョ': "yo",
-	'ッ': "", // Double consonant marker
-	'ァ': "a", 'ィ': "i", 'ゥ': "u", 'ェ': "e", 'ォ': "o",
-	// Extended katakana
-	'ー': "", // Long vowel mark
-	'ヴ': "vu",
-}
-
-// Combination mappings for きゃ, しゃ, etc.
-var combinationHiragana = map[string]string{
-	"きゃ": "kya", "きゅ": "kyu", "きょ": "kyo",
-	"しゃ": "sha", "しゅ": "shu", "しょ": "sho",
-	"ちゃ": "cha", "ちゅ": "chu", "ちょ": "cho",
-	"にゃ": "nya", "にゅ": "nyu", "にょ": "nyo",
-	"ひゃ": "hya", "ひゅ": "hyu", "ひょ": "hyo",
-	"みゃ": "mya", "みゅ": "myu", "みょ": "myo",
-	"りゃ": "rya", "りゅ": "ryu", "りょ": "ryo",
-	"ぎゃ": "gya", "ぎゅ": "gyu", "ぎょ": "gyo",
-	"じゃ": "ja", "じゅ": "ju", "じょ": "jo",
-	"びゃ": "bya", "びゅ": "byu", "びょ": "byo",
-	"ぴゃ": "pya", "ぴゅ": "pyu", "ぴょ": "pyo",
-}
-
-var combinationKatakana = map[string]string{
-	"キャ": "kya", "キュ": "kyu", "キョ": "kyo",
-	"シャ": "sha", "シュ": "shu", "ショ": "sho",
-	"チャ": "cha", "チュ": "chu", "チョ": "cho",
-	"ニャ": "nya", "ニュ": "nyu", "ニョ": "nyo",
-	"ヒャ": "hya", "ヒュ": "hyu", "ヒョ": "hyo",
-	"ミャ": "mya", "ミュ": "myu", "ミョ": "myo",
-	"リャ": "rya", "リュ": "ryu", "リョ": "ryo",
-	"ギャ": "gya", "ギュ": "gyu", "ギョ": "gyo",
-	"ジャ": "ja", "ジュ": "ju", "ジョ": "jo",
-	"ビャ": "bya", "ビュ": "byu", "ビョ": "byo",
-	"ピャ": "pya", "ピュ": "pyu", "ピョ": "pyo",
-	// Extended combinations
-	"ティ": "ti", "ディ": "di", "トゥ": "tu", "ドゥ": "du",
-	"ファ": "fa", "フィ": "fi", "フェ": "fe", "フォ": "fo",
-	"ウィ": "wi", "ウェ": "we", "ウォ": "wo",
-}
-
-// ContainsJapanese checks if a string contains Japanese characters
-func ContainsJapanese(s string) bool {
-	for _, r := range s {
-		if isHiragana(r) || isKatakana(r) || isKanji(r) {
-			return true
-		}
-	}
-	return false
-}
-
-func isHiragana(r rune) bool {
-	return r >= 0x3040 && r <= 0x309F
-}
-
-func isKatakana(r rune) bool {
-	return r >= 0x30A0 && r <= 0x30FF
-}
-
-func isKanji(r rune) bool {
-	return (r >= 0x4E00 && r <= 0x9FFF) || // CJK Unified Ideographs
-		(r >= 0x3400 && r <= 0x4DBF) // CJK Unified Ideographs Extension A
-}
-
-// JapaneseToRomaji converts Japanese text (hiragana/katakana) to romaji
-// Note: Kanji cannot be converted without a dictionary, so they are kept as-is
-func JapaneseToRomaji(text string) string {
-	if !ContainsJapanese(text) {
-		return text
-	}
-
-	var result strings.Builder
-	runes := []rune(text)
-	i := 0
-
-	for i < len(runes) {
-		// Check for っ/ッ (double consonant)
-		if i < len(runes)-1 && (runes[i] == 'っ' || runes[i] == 'ッ') {
-			nextRomaji := ""
-			if romaji, ok := hiraganaToRomaji[runes[i+1]]; ok {
-				nextRomaji = romaji
-			} else if romaji, ok := katakanaToRomaji[runes[i+1]]; ok {
-				nextRomaji = romaji
-			}
-			if len(nextRomaji) > 0 {
-				result.WriteByte(nextRomaji[0]) // Double the first consonant
-			}
-			i++
-			continue
-		}
-
-		// Check for two-character combinations
-		if i < len(runes)-1 {
-			combo := string(runes[i : i+2])
-			if romaji, ok := combinationHiragana[combo]; ok {
-				result.WriteString(romaji)
-				i += 2
-				continue
-			}
-			if romaji, ok := combinationKatakana[combo]; ok {
-				result.WriteString(romaji)
-				i += 2
-				continue
-			}
-		}
-
-		// Single character conversion
-		r := runes[i]
-		if romaji, ok := hiraganaToRomaji[r]; ok {
-			result.WriteString(romaji)
-		} else if romaji, ok := katakanaToRomaji[r]; ok {
-			result.WriteString(romaji)
-		} else if isKanji(r) {
-			// Keep kanji as-is (would need dictionary for proper conversion)
-			result.WriteRune(r)
-		} else {
-			// Keep other characters (punctuation, spaces, etc.)
-			result.WriteRune(r)
-		}
-		i++
-	}
-
-	return result.String()
-}
-
-// BuildSearchQuery creates a search query from track name and artist
-// Converts Japanese to romaji if present
-func BuildSearchQuery(trackName, artistName string) string {
-	// Convert Japanese to romaji
-	trackRomaji := JapaneseToRomaji(trackName)
-	artistRomaji := JapaneseToRomaji(artistName)
-
-	// Clean up the query - remove special characters that might interfere with search
-	trackClean := cleanSearchQuery(trackRomaji)
-	artistClean := cleanSearchQuery(artistRomaji)
-
-	return strings.TrimSpace(artistClean + " " + trackClean)
-}
-
-// cleanSearchQuery removes special characters that might interfere with search
-func cleanSearchQuery(s string) string {
-	var result strings.Builder
-	for _, r := range s {
-		if unicode.IsLetter(r) || unicode.IsNumber(r) || unicode.IsSpace(r) {
-			result.WriteRune(r)
-		} else if r == '-' || r == '\'' {
-			result.WriteRune(r)
-		}
-	}
-	return strings.TrimSpace(result.String())
-}
-
-// cleanToASCII removes all non-ASCII characters and keeps only letters, numbers, spaces
-// This is useful for creating search queries that work better with Tidal's search
-func cleanToASCII(s string) string {
-	var result strings.Builder
-	for _, r := range s {
-		// Keep only ASCII letters, numbers, spaces, and basic punctuation
-		if (r >= 'a' && r <= 'z') || (r >= 'A' && r <= 'Z') ||
-			(r >= '0' && r <= '9') || r == ' ' || r == '-' || r == '\'' {
-			result.WriteRune(r)
-		} else if r == ',' || r == '.' {
-			// Convert punctuation to space
-			result.WriteRune(' ')
-		}
-	}
-	// Clean up multiple spaces
-	cleaned := strings.Join(strings.Fields(result.String()), " ")
-	return strings.TrimSpace(cleaned)
-}

backend/songlink.go

@@ -7,6 +7,7 @@ import (
 	"io"
 	"net/http"
 	"net/url"
+	"strings"
 	"time"
 )
 
@@ -20,9 +21,9 @@ type SongLinkClient struct {
 type SongLinkURLs struct {
 	TidalURL  string `json:"tidal_url"`
 	AmazonURL string `json:"amazon_url"`
+	ISRC      string `json:"isrc"`
 }
 
-// TrackAvailability represents the availability of a track on different platforms
 type TrackAvailability struct {
 	SpotifyID string `json:"spotify_id"`
 	Tidal     bool   `json:"tidal"`
@@ -42,15 +43,14 @@ func NewSongLinkClient() *SongLinkClient {
 	}
 }
 
-func (s *SongLinkClient) GetAllURLsFromSpotify(spotifyTrackID string) (*SongLinkURLs, error) {
-	// Rate limiting: max 10 requests per minute (song.link API limit)
+func (s *SongLinkClient) GetAllURLsFromSpotify(spotifyTrackID string, region string) (*SongLinkURLs, error) {
+
 	now := time.Now()
 	if now.Sub(s.apiCallResetTime) >= time.Minute {
 		s.apiCallCount = 0
 		s.apiCallResetTime = now
 	}
 
-	// If we've hit the limit, wait until the next minute
 	if s.apiCallCount >= 9 {
 		waitTime := time.Minute - now.Sub(s.apiCallResetTime)
 		if waitTime > 0 {
@@ -61,7 +61,6 @@ func (s *SongLinkClient) GetAllURLsFromSpotify(spotifyTrackID string) (*SongLink
 		}
 	}
 
-	// Add delay between requests (7 seconds to be safe)
 	if !s.lastAPICallTime.IsZero() {
 		timeSinceLastCall := now.Sub(s.lastAPICallTime)
 		minDelay := 7 * time.Second
@@ -72,13 +71,16 @@ func (s *SongLinkClient) GetAllURLsFromSpotify(spotifyTrackID string) (*SongLink
 		}
 	}
 
-	// Decode base64 API URL
 	spotifyBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9vcGVuLnNwb3RpZnkuY29tL3RyYWNrLw==")
 	spotifyURL := fmt.Sprintf("%s%s", string(spotifyBase), spotifyTrackID)
 
 	apiBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9hcGkuc29uZy5saW5rL3YxLWFscGhhLjEvbGlua3M/dXJsPQ==")
 	apiURL := fmt.Sprintf("%s%s", string(apiBase), url.QueryEscape(spotifyURL))
 
+	if region != "" {
+		apiURL += fmt.Sprintf("&userCountry=%s", region)
+	}
+
 	req, err := http.NewRequest("GET", apiURL, nil)
 	if err != nil {
 		return nil, fmt.Errorf("failed to create request: %w", err)
@@ -86,7 +88,6 @@ func (s *SongLinkClient) GetAllURLsFromSpotify(spotifyTrackID string) (*SongLink
 
 	fmt.Println("Getting streaming URLs from song.link...")
 
-	// Retry logic for rate limit errors
 	maxRetries := 3
 	var resp *http.Response
 	for i := 0; i < maxRetries; i++ {
@@ -95,7 +96,6 @@ func (s *SongLinkClient) GetAllURLsFromSpotify(spotifyTrackID string) (*SongLink
 			return nil, fmt.Errorf("failed to get URLs: %w", err)
 		}
 
-		// Update rate limit tracking
 		s.lastAPICallTime = time.Now()
 		s.apiCallCount++
 
@@ -124,7 +124,7 @@ func (s *SongLinkClient) GetAllURLsFromSpotify(spotifyTrackID string) (*SongLink
 			URL string `json:"url"`
 		} `json:"linksByPlatform"`
 	}
-	// Read body first to handle encoding issues
+
 	body, err := io.ReadAll(resp.Body)
 	if err != nil {
 		return nil, fmt.Errorf("failed to read response body: %w", err)
@@ -135,7 +135,7 @@ func (s *SongLinkClient) GetAllURLsFromSpotify(spotifyTrackID string) (*SongLink
 	}
 
 	if err := json.Unmarshal(body, &songLinkResp); err != nil {
-		// Truncate body for error message (max 200 chars)
+
 		bodyStr := string(body)
 		if len(bodyStr) > 200 {
 			bodyStr = bodyStr[:200] + "..."
@@ -145,23 +145,26 @@ func (s *SongLinkClient) GetAllURLsFromSpotify(spotifyTrackID string) (*SongLink
 
 	urls := &SongLinkURLs{}
 
-	// Extract Tidal URL
 	if tidalLink, ok := songLinkResp.LinksByPlatform["tidal"]; ok && tidalLink.URL != "" {
 		urls.TidalURL = tidalLink.URL
 		fmt.Printf("✓ Tidal URL found\n")
 	}
 
-	// Extract Amazon URL
 	if amazonLink, ok := songLinkResp.LinksByPlatform["amazonMusic"]; ok && amazonLink.URL != "" {
 		amazonURL := amazonLink.URL
-		// Convert album URL to track URL if needed
+
 		if len(amazonURL) > 0 {
 			urls.AmazonURL = amazonURL
 			fmt.Printf("✓ Amazon URL found\n")
 		}
 	}
 
-	// Check if at least one URL was found
+	if deezerLink, ok := songLinkResp.LinksByPlatform["deezer"]; ok && deezerLink.URL != "" {
+		if isrc, err := getDeezerISRC(deezerLink.URL); err == nil && isrc != "" {
+			urls.ISRC = isrc
+		}
+	}
+
 	if urls.TidalURL == "" && urls.AmazonURL == "" {
 		return nil, fmt.Errorf("no streaming URLs found")
 	}
@@ -169,16 +172,14 @@ func (s *SongLinkClient) GetAllURLsFromSpotify(spotifyTrackID string) (*SongLink
 	return urls, nil
 }
 
-// CheckTrackAvailability checks the availability of a track on different platforms
-func (s *SongLinkClient) CheckTrackAvailability(spotifyTrackID string, isrc string) (*TrackAvailability, error) {
-	// Rate limiting: max 10 requests per minute (song.link API limit)
+func (s *SongLinkClient) CheckTrackAvailability(spotifyTrackID string) (*TrackAvailability, error) {
+
 	now := time.Now()
 	if now.Sub(s.apiCallResetTime) >= time.Minute {
 		s.apiCallCount = 0
 		s.apiCallResetTime = now
 	}
 
-	// If we've hit the limit, wait until the next minute
 	if s.apiCallCount >= 9 {
 		waitTime := time.Minute - now.Sub(s.apiCallResetTime)
 		if waitTime > 0 {
@@ -189,7 +190,6 @@ func (s *SongLinkClient) CheckTrackAvailability(spotifyTrackID string, isrc stri
 		}
 	}
 
-	// Add delay between requests (7 seconds to be safe)
 	if !s.lastAPICallTime.IsZero() {
 		timeSinceLastCall := now.Sub(s.lastAPICallTime)
 		minDelay := 7 * time.Second
@@ -200,7 +200,6 @@ func (s *SongLinkClient) CheckTrackAvailability(spotifyTrackID string, isrc stri
 		}
 	}
 
-	// Decode base64 API URL
 	spotifyBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9vcGVuLnNwb3RpZnkuY29tL3RyYWNrLw==")
 	spotifyURL := fmt.Sprintf("%s%s", string(spotifyBase), spotifyTrackID)
 
@@ -214,7 +213,6 @@ func (s *SongLinkClient) CheckTrackAvailability(spotifyTrackID string, isrc stri
 
 	fmt.Printf("Checking availability for track: %s\n", spotifyTrackID)
 
-	// Retry logic for rate limit errors
 	maxRetries := 3
 	var resp *http.Response
 	for i := 0; i < maxRetries; i++ {
@@ -223,7 +221,6 @@ func (s *SongLinkClient) CheckTrackAvailability(spotifyTrackID string, isrc stri
 			return nil, fmt.Errorf("failed to check availability: %w", err)
 		}
 
-		// Update rate limit tracking
 		s.lastAPICallTime = time.Now()
 		s.apiCallCount++
 
@@ -252,7 +249,7 @@ func (s *SongLinkClient) CheckTrackAvailability(spotifyTrackID string, isrc stri
 			URL string `json:"url"`
 		} `json:"linksByPlatform"`
 	}
-	// Read body first to handle encoding issues
+
 	body, err := io.ReadAll(resp.Body)
 	if err != nil {
 		return nil, fmt.Errorf("failed to read response body: %w", err)
@@ -263,7 +260,7 @@ func (s *SongLinkClient) CheckTrackAvailability(spotifyTrackID string, isrc stri
 	}
 
 	if err := json.Unmarshal(body, &songLinkResp); err != nil {
-		// Truncate body for error message (max 200 chars)
+
 		bodyStr := string(body)
 		if len(bodyStr) > 200 {
 			bodyStr = bodyStr[:200] + "..."
@@ -275,33 +272,33 @@ func (s *SongLinkClient) CheckTrackAvailability(spotifyTrackID string, isrc stri
 		SpotifyID: spotifyTrackID,
 	}
 
-	// Check Tidal
 	if tidalLink, ok := songLinkResp.LinksByPlatform["tidal"]; ok && tidalLink.URL != "" {
 		availability.Tidal = true
 		availability.TidalURL = tidalLink.URL
 	}
 
-	// Check Amazon
 	if amazonLink, ok := songLinkResp.LinksByPlatform["amazonMusic"]; ok && amazonLink.URL != "" {
 		availability.Amazon = true
 		availability.AmazonURL = amazonLink.URL
 	}
 
-	// Check Qobuz using ISRC (song.link doesn't support Qobuz)
-	if isrc != "" {
-		qobuzAvailable := checkQobuzAvailability(isrc)
-		availability.Qobuz = qobuzAvailable
+	if deezerLink, ok := songLinkResp.LinksByPlatform["deezer"]; ok && deezerLink.URL != "" {
+		deezerURL := deezerLink.URL
+
+		deezerISRC, err := getDeezerISRC(deezerURL)
+		if err == nil && deezerISRC != "" {
+			qobuzAvailable := checkQobuzAvailability(deezerISRC)
+			availability.Qobuz = qobuzAvailable
+		}
 	}
 
 	return availability, nil
 }
 
-// checkQobuzAvailability checks if a track is available on Qobuz using ISRC
 func checkQobuzAvailability(isrc string) bool {
 	client := &http.Client{Timeout: 10 * time.Second}
 	appID := "798273057"
 
-	// Decode base64 API URL
 	apiBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly93d3cucW9idXouY29tL2FwaS5qc29uLzAuMi90cmFjay9zZWFyY2g/cXVlcnk9")
 	searchURL := fmt.Sprintf("%s%s&limit=1&app_id=%s", string(apiBase), isrc, appID)
 
@@ -326,3 +323,147 @@ func checkQobuzAvailability(isrc string) bool {
 
 	return searchResp.Tracks.Total > 0
 }
+
+func (s *SongLinkClient) GetDeezerURLFromSpotify(spotifyTrackID string) (string, error) {
+
+	now := time.Now()
+	if now.Sub(s.apiCallResetTime) >= time.Minute {
+		s.apiCallCount = 0
+		s.apiCallResetTime = now
+	}
+
+	if s.apiCallCount >= 9 {
+		waitTime := time.Minute - now.Sub(s.apiCallResetTime)
+		if waitTime > 0 {
+			fmt.Printf("Rate limit reached, waiting %v...\n", waitTime.Round(time.Second))
+			time.Sleep(waitTime)
+			s.apiCallCount = 0
+			s.apiCallResetTime = time.Now()
+		}
+	}
+
+	if !s.lastAPICallTime.IsZero() {
+		timeSinceLastCall := now.Sub(s.lastAPICallTime)
+		minDelay := 7 * time.Second
+		if timeSinceLastCall < minDelay {
+			waitTime := minDelay - timeSinceLastCall
+			fmt.Printf("Rate limiting: waiting %v...\n", waitTime.Round(time.Second))
+			time.Sleep(waitTime)
+		}
+	}
+
+	spotifyBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9vcGVuLnNwb3RpZnkuY29tL3RyYWNrLw==")
+	spotifyURL := fmt.Sprintf("%s%s", string(spotifyBase), spotifyTrackID)
+
+	apiBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9hcGkuc29uZy5saW5rL3YxLWFscGhhLjEvbGlua3M/dXJsPQ==")
+	apiURL := fmt.Sprintf("%s%s", string(apiBase), url.QueryEscape(spotifyURL))
+
+	req, err := http.NewRequest("GET", apiURL, nil)
+	if err != nil {
+		return "", fmt.Errorf("failed to create request: %w", err)
+	}
+
+	fmt.Println("Getting Deezer URL from song.link...")
+
+	maxRetries := 3
+	var resp *http.Response
+	for i := 0; i < maxRetries; i++ {
+		resp, err = s.client.Do(req)
+		if err != nil {
+			return "", fmt.Errorf("failed to get Deezer URL: %w", err)
+		}
+
+		s.lastAPICallTime = time.Now()
+		s.apiCallCount++
+
+		if resp.StatusCode == 429 {
+			resp.Body.Close()
+			if i < maxRetries-1 {
+				waitTime := 15 * time.Second
+				fmt.Printf("Rate limited by API, waiting %v before retry...\n", waitTime)
+				time.Sleep(waitTime)
+				continue
+			}
+			return "", fmt.Errorf("API rate limit exceeded after %d retries", maxRetries)
+		}
+
+		if resp.StatusCode != 200 {
+			resp.Body.Close()
+			return "", fmt.Errorf("API returned status %d", resp.StatusCode)
+		}
+
+		break
+	}
+	defer resp.Body.Close()
+
+	var songLinkResp struct {
+		LinksByPlatform map[string]struct {
+			URL string `json:"url"`
+		} `json:"linksByPlatform"`
+	}
+	if err := json.NewDecoder(resp.Body).Decode(&songLinkResp); err != nil {
+		return "", fmt.Errorf("failed to decode response: %w", err)
+	}
+
+	deezerLink, ok := songLinkResp.LinksByPlatform["deezer"]
+	if !ok || deezerLink.URL == "" {
+		return "", fmt.Errorf("deezer link not found")
+	}
+
+	deezerURL := deezerLink.URL
+	fmt.Printf("Found Deezer URL: %s\n", deezerURL)
+	return deezerURL, nil
+}
+
+func getDeezerISRC(deezerURL string) (string, error) {
+
+	var trackID string
+	if strings.Contains(deezerURL, "/track/") {
+		parts := strings.Split(deezerURL, "/track/")
+		if len(parts) > 1 {
+			trackID = strings.Split(parts[1], "?")[0]
+			trackID = strings.TrimSpace(trackID)
+		}
+	}
+
+	if trackID == "" {
+		return "", fmt.Errorf("could not extract track ID from Deezer URL: %s", deezerURL)
+	}
+
+	apiURL := fmt.Sprintf("https://api.deezer.com/track/%s", trackID)
+
+	client := &http.Client{Timeout: 10 * time.Second}
+	resp, err := client.Get(apiURL)
+	if err != nil {
+		return "", fmt.Errorf("failed to call Deezer API: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		return "", fmt.Errorf("Deezer API returned status %d", resp.StatusCode)
+	}
+
+	var deezerTrack struct {
+		ID    int64  `json:"id"`
+		ISRC  string `json:"isrc"`
+		Title string `json:"title"`
+	}
+	if err := json.NewDecoder(resp.Body).Decode(&deezerTrack); err != nil {
+		return "", fmt.Errorf("failed to decode Deezer API response: %w", err)
+	}
+
+	if deezerTrack.ISRC == "" {
+		return "", fmt.Errorf("ISRC not found in Deezer API response for track %s", trackID)
+	}
+
+	fmt.Printf("Found ISRC from Deezer: %s (track: %s)\n", deezerTrack.ISRC, deezerTrack.Title)
+	return deezerTrack.ISRC, nil
+}
+
+func (s *SongLinkClient) GetISRC(spotifyID string) (string, error) {
+	deezerURL, err := s.GetDeezerURLFromSpotify(spotifyID)
+	if err != nil {
+		return "", err
+	}
+	return getDeezerISRC(deezerURL)
+}

backend/spectrum.go

@@ -8,7 +8,6 @@ import (
 	"github.com/mewkiz/flac"
 )
 
-// SpectrumData contains frequency spectrum information
 type SpectrumData struct {
 	TimeSlices []TimeSlice `json:"time_slices"`
 	SampleRate int         `json:"sample_rate"`
@@ -17,15 +16,13 @@ type SpectrumData struct {
 	MaxFreq    float64     `json:"max_freq"`
 }
 
-// TimeSlice represents spectrum data at a point in time
 type TimeSlice struct {
 	Time       float64   `json:"time"`
 	Magnitudes []float64 `json:"magnitudes"`
 }
 
-// AnalyzeSpectrum decodes FLAC file and performs FFT analysis
 func AnalyzeSpectrum(filepath string) (*SpectrumData, error) {
-	// Open FLAC file
+
 	stream, err := flac.ParseFile(filepath)
 	if err != nil {
 		return nil, fmt.Errorf("failed to parse FLAC: %w", err)
@@ -36,7 +33,6 @@ func AnalyzeSpectrum(filepath string) (*SpectrumData, error) {
 	sampleRate := int(info.SampleRate)
 	channels := int(info.NChannels)
 
-	// Read audio samples
 	samples, err := readSamples(stream, channels)
 	if err != nil {
 		return nil, fmt.Errorf("failed to read samples: %w", err)
@@ -46,28 +42,23 @@ func AnalyzeSpectrum(filepath string) (*SpectrumData, error) {
 		return nil, fmt.Errorf("no audio samples found")
 	}
 
-	// Calculate spectrum
 	return calculateSpectrum(samples, sampleRate), nil
 }
 
-// readSamples reads and decodes audio samples from FLAC stream
 func readSamples(stream *flac.Stream, channels int) ([]float64, error) {
 	var allSamples []float64
-	maxSamples := 10 * 1024 * 1024 // Limit to ~10 million samples to avoid memory issues
+	maxSamples := 10 * 1024 * 1024
 
-	// Decode frames
 	for {
 		frame, err := stream.ParseNext()
 		if err != nil {
-			// End of stream
+
 			break
 		}
 
-		// Convert samples to float64 and mix channels to mono
 		for i := 0; i < frame.Subframes[0].NSamples; i++ {
 			var sample float64
 
-			// Mix all channels to mono by averaging
 			for ch := 0; ch < channels; ch++ {
 				sample += float64(frame.Subframes[ch].Samples[i])
 			}
@@ -75,7 +66,6 @@ func readSamples(stream *flac.Stream, channels int) ([]float64, error) {
 
 			allSamples = append(allSamples, sample)
 
-			// Limit sample count
 			if len(allSamples) >= maxSamples {
 				return allSamples, nil
 			}
@@ -85,7 +75,6 @@ func readSamples(stream *flac.Stream, channels int) ([]float64, error) {
 	return allSamples, nil
 }
 
-// calculateSpectrum performs FFT analysis on audio samples
 func calculateSpectrum(samples []float64, sampleRate int) *SpectrumData {
 	fftSize := 8192
 	numTimeSlices := 300
@@ -140,7 +129,6 @@ func calculateSpectrum(samples []float64, sampleRate int) *SpectrumData {
 	}
 }
 
-// applyHannWindow applies Hann window to reduce spectral leakage
 func applyHannWindow(samples []float64) []float64 {
 	n := len(samples)
 	windowed := make([]float64, n)
@@ -153,7 +141,6 @@ func applyHannWindow(samples []float64) []float64 {
 	return windowed
 }
 
-// fft performs Fast Fourier Transform using Cooley-Tukey algorithm
 func fft(samples []float64) []complex128 {
 	n := len(samples)
 
@@ -165,7 +152,6 @@ func fft(samples []float64) []complex128 {
 	return fftRecursive(x)
 }
 
-// fftRecursive performs recursive FFT
 func fftRecursive(x []complex128) []complex128 {
 	n := len(x)
 

backend/spotfetch_api.go

@@ -0,0 +1,101 @@
+package backend
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"regexp"
+	"strings"
+	"time"
+)
+
+func GetSpotifyDataWithAPI(ctx context.Context, spotifyURL string, useAPI bool, apiBaseURL string, batch bool, delay time.Duration) (interface{}, error) {
+	if !useAPI || apiBaseURL == "" {
+
+		return GetFilteredSpotifyData(ctx, spotifyURL, batch, delay)
+	}
+
+	spotifyType, id := parseSpotifyURLToTypeAndID(spotifyURL)
+	if spotifyType == "" || id == "" {
+		return nil, fmt.Errorf("invalid Spotify URL: %s", spotifyURL)
+	}
+
+	apiURL := fmt.Sprintf("%s/%s/%s", strings.TrimSuffix(apiBaseURL, "/"), spotifyType, id)
+
+	req, err := http.NewRequestWithContext(ctx, "GET", apiURL, nil)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create API request: %w", err)
+	}
+
+	client := &http.Client{
+		Timeout: 30 * time.Second,
+	}
+
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("SpotFetch API request failed: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("SpotFetch API error: HTTP %d", resp.StatusCode)
+	}
+
+	bodyBytes, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read API response: %w", err)
+	}
+
+	var data interface{}
+
+	switch spotifyType {
+	case "track":
+		var trackResp TrackResponse
+		if err := json.Unmarshal(bodyBytes, &trackResp); err != nil {
+			return nil, fmt.Errorf("failed to decode track response: %w", err)
+		}
+		data = trackResp
+	case "album":
+		var albumResp AlbumResponsePayload
+		if err := json.Unmarshal(bodyBytes, &albumResp); err != nil {
+			return nil, fmt.Errorf("failed to decode album response: %w", err)
+		}
+		data = &albumResp
+	case "playlist":
+		var playlistResp PlaylistResponsePayload
+		if err := json.Unmarshal(bodyBytes, &playlistResp); err != nil {
+			return nil, fmt.Errorf("failed to decode playlist response: %w", err)
+		}
+		data = playlistResp
+	case "artist":
+		var artistResp ArtistDiscographyPayload
+		if err := json.Unmarshal(bodyBytes, &artistResp); err != nil {
+			return nil, fmt.Errorf("failed to decode artist response: %w", err)
+		}
+		data = &artistResp
+	default:
+		return nil, fmt.Errorf("unsupported Spotify type: %s", spotifyType)
+	}
+
+	return data, nil
+}
+
+func parseSpotifyURLToTypeAndID(url string) (string, string) {
+
+	if strings.HasPrefix(url, "spotify:") {
+		parts := strings.Split(url, ":")
+		if len(parts) >= 3 {
+			return parts[1], parts[2]
+		}
+	}
+
+	re := regexp.MustCompile(`spotify\.com/(track|album|playlist|artist)/([a-zA-Z0-9]+)`)
+	matches := re.FindStringSubmatch(url)
+	if len(matches) == 3 {
+		return matches[1], matches[2]
+	}
+
+	return "", ""
+}

backend/system_unix.go

@@ -0,0 +1,41 @@
+//go:build !windows
+
+package backend
+
+import (
+	"fmt"
+	"os/exec"
+	"runtime"
+	"strings"
+)
+
+func GetOSInfo() (string, error) {
+	osType := runtime.GOOS
+	arch := runtime.GOARCH
+
+	switch osType {
+	case "darwin":
+		out, err := exec.Command("sw_vers", "-productVersion").Output()
+		if err != nil {
+			return fmt.Sprintf("macOS %s", arch), nil
+		}
+		version := strings.TrimSpace(string(out))
+		return fmt.Sprintf("macOS %s (%s)", version, arch), nil
+
+	case "linux":
+		out, err := exec.Command("cat", "/etc/os-release").Output()
+		if err == nil {
+			lines := strings.Split(string(out), "\n")
+			for _, line := range lines {
+				if strings.HasPrefix(line, "PRETTY_NAME=") {
+					name := strings.Trim(strings.TrimPrefix(line, "PRETTY_NAME="), "\"")
+					return fmt.Sprintf("%s (%s)", name, arch), nil
+				}
+			}
+		}
+		return fmt.Sprintf("Linux %s", arch), nil
+
+	default:
+		return fmt.Sprintf("%s %s", osType, arch), nil
+	}
+}

backend/system_windows.go

@@ -0,0 +1,41 @@
+package backend
+
+import (
+	"fmt"
+	"os/exec"
+	"runtime"
+	"strings"
+	"syscall"
+)
+
+func GetOSInfo() (string, error) {
+	arch := runtime.GOARCH
+
+	cmd := exec.Command("wmic", "os", "get", "Caption,Version", "/value")
+	cmd.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
+	out, err := cmd.Output()
+	if err != nil {
+		cmdVer := exec.Command("cmd", "/c", "ver")
+		cmdVer.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
+		outVer, errVer := cmdVer.Output()
+		if errVer != nil {
+			return fmt.Sprintf("Windows %s", arch), nil
+		}
+		return strings.TrimSpace(string(outVer)), nil
+	}
+
+	lines := strings.Split(string(out), "\n")
+	var caption, version string
+	for _, line := range lines {
+		line = strings.TrimSpace(line)
+		if strings.HasPrefix(line, "Caption=") {
+			caption = strings.TrimPrefix(line, "Caption=")
+		} else if strings.HasPrefix(line, "Version=") {
+			version = strings.TrimPrefix(line, "Version=")
+		}
+	}
+	if caption != "" && version != "" {
+		return fmt.Sprintf("%s (%s, %s)", caption, version, arch), nil
+	}
+	return strings.TrimSpace(string(out)), nil
+}

backend/uploader.go

@@ -0,0 +1,217 @@
+package backend
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"mime/multipart"
+	"net/http"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+	"time"
+)
+
+type SendNowResponse []struct {
+	FileCode string `json:"file_code"`
+}
+
+func UploadToSendNow(filePath string) (string, error) {
+	file, err := os.Open(filePath)
+	if err != nil {
+		return "", fmt.Errorf("failed to open file: %v", err)
+	}
+	defer file.Close()
+
+	return uploadToService(filepath.Base(filePath), file)
+}
+
+func UploadBytesToSendNow(filename string, data []byte) (string, error) {
+	return uploadToService(filename, bytes.NewReader(data))
+}
+
+func uploadToService(filename string, fileReader io.Reader) (string, error) {
+	body := &bytes.Buffer{}
+	writer := multipart.NewWriter(body)
+
+	fields := map[string]string{
+		"sess_id":          "",
+		"utype":            "anon",
+		"hidden":           "",
+		"enableemail":      "",
+		"link_rcpt":        "",
+		"link_pass":        "",
+		"file_expire_time": "",
+		"file_expire_unit": "DAY",
+		"file_max_dl":      "1",
+		"file_public":      "1",
+		"keepalive":        "1",
+	}
+
+	for key, val := range fields {
+		if err := writer.WriteField(key, val); err != nil {
+			return "", err
+		}
+	}
+
+	part, err := writer.CreateFormFile("file_0", filename)
+	if err != nil {
+		return "", err
+	}
+	if _, err := io.Copy(part, fileReader); err != nil {
+		return "", err
+	}
+
+	writer.Close()
+
+	uploadURL, err := getUploadURL()
+	if err != nil {
+		return "", fmt.Errorf("failed to get upload server: %v", err)
+	}
+
+	req, err := http.NewRequest("POST", uploadURL, body)
+	if err != nil {
+		return "", err
+	}
+
+	req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36")
+	req.Header.Set("Origin", "https://send.now")
+	req.Header.Set("Referer", "https://send.now/")
+	req.Header.Set("Content-Type", writer.FormDataContentType())
+
+	client := &http.Client{Timeout: 60 * time.Second}
+	resp, err := client.Do(req)
+	if err != nil {
+		return "", fmt.Errorf("upload failed: %v", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		respBytes, _ := io.ReadAll(resp.Body)
+		return "", fmt.Errorf("server error %d: %s", resp.StatusCode, string(respBytes))
+	}
+
+	respBytes, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", err
+	}
+
+	var result SendNowResponse
+	if err := json.Unmarshal(respBytes, &result); err != nil {
+		return "", fmt.Errorf("failed to parse response: %v, raw: %s", err, string(respBytes))
+	}
+
+	if len(result) == 0 || result[0].FileCode == "" {
+		return "", fmt.Errorf("invalid response format")
+	}
+
+	fileCode := result[0].FileCode
+	downloadLink := fmt.Sprintf("https://send.now/%s", fileCode)
+
+	ext := strings.ToLower(filepath.Ext(filename))
+	if ext == ".mp4" || ext == ".mov" || ext == ".mkv" || ext == ".webm" || ext == ".avi" {
+		return fmt.Sprintf("[Video](%s)", downloadLink), nil
+	}
+
+	return fetchDirectImageLink(downloadLink)
+}
+
+func getUploadURL() (string, error) {
+	req, err := http.NewRequest("GET", "https://send.now/", nil)
+	if err != nil {
+		return "", err
+	}
+	req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36")
+
+	client := &http.Client{Timeout: 30 * time.Second}
+	resp, err := client.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		return "", fmt.Errorf("failed to fetch main page: status %d", resp.StatusCode)
+	}
+
+	bodyBytes, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", err
+	}
+	body := string(bodyBytes)
+
+	re := regexp.MustCompile(`action=["'](https://[^"']+/cgi-bin/upload\.cgi\?upload_type=file[^"']*)["']`)
+	matches := re.FindStringSubmatch(body)
+	if len(matches) > 1 {
+		return matches[1], nil
+	}
+
+	reFallback := regexp.MustCompile(`action=["'](https://[^"']+/cgi-bin/upload\.cgi)`)
+	matchesFallback := reFallback.FindStringSubmatch(body)
+	if len(matchesFallback) > 1 {
+		return matchesFallback[1] + "?upload_type=file&utype=anon", nil
+	}
+
+	return "", fmt.Errorf("upload URL not found in main page")
+}
+
+func fetchDirectImageLink(url string) (string, error) {
+	req, err := http.NewRequest("GET", url, nil)
+	if err != nil {
+		return "", err
+	}
+	req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36")
+
+	client := &http.Client{Timeout: 30 * time.Second}
+	resp, err := client.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	htmlBytes, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", err
+	}
+	htmlStr := string(htmlBytes)
+
+	reFullRes := regexp.MustCompile(`(?i)<a[^>]+href=["']([^"']+)["'][^>]*title=["']Open image on new tab["']`)
+	matchesFull := reFullRes.FindStringSubmatch(htmlStr)
+	if len(matchesFull) > 1 {
+		return fmt.Sprintf("![image](%s)", matchesFull[1]), nil
+	}
+
+	reClipboard := regexp.MustCompile(`(?s)data-clipboard-text=['"]<a href="[^"]+".*?><img src="([^"]+)"`)
+	matches := reClipboard.FindStringSubmatch(htmlStr)
+	if len(matches) > 1 {
+		return fmt.Sprintf("![image](%s)", matches[1]), nil
+	}
+
+	reImg := regexp.MustCompile(`(?i)<img[^>]+src=["']([^"']*?\.send\.now/i/[^"']+)["']`)
+	matchesImg := reImg.FindStringSubmatch(htmlStr)
+	if len(matchesImg) > 1 {
+		return fmt.Sprintf("![image](%s)", matchesImg[1]), nil
+	}
+
+	reAnchor := regexp.MustCompile(`(?i)<a[^>]+href=["']([^"']+\.(?:jpg|jpeg|png|gif|webp))["']`)
+	matchesAnchor := reAnchor.FindStringSubmatch(htmlStr)
+	if len(matchesAnchor) > 1 {
+		return fmt.Sprintf("![image](%s)", matchesAnchor[1]), nil
+	}
+
+	reGeneric := regexp.MustCompile(`(?i)<img[^>]+src=["']([^"']+\.(?:jpg|jpeg|png|gif|webp))["']`)
+	matchesGeneric := reGeneric.FindAllStringSubmatch(htmlStr, -1)
+	for _, match := range matchesGeneric {
+		if len(match) > 1 {
+			link := match[1]
+
+			if !regexp.MustCompile(`(?i)(logo|icon|button|assets)`).MatchString(filepath.Base(link)) {
+				return fmt.Sprintf("![image](%s)", link), nil
+			}
+		}
+	}
+
+	return fmt.Sprintf("[View File](%s)", url), nil
+}

frontend/eslint.config.js

@@ -1,23 +1,22 @@
-import js from '@eslint/js'
-import globals from 'globals'
-import reactHooks from 'eslint-plugin-react-hooks'
-import reactRefresh from 'eslint-plugin-react-refresh'
-import tseslint from 'typescript-eslint'
-import { defineConfig, globalIgnores } from 'eslint/config'
-
+import js from '@eslint/js';
+import globals from 'globals';
+import reactHooks from 'eslint-plugin-react-hooks';
+import reactRefresh from 'eslint-plugin-react-refresh';
+import tseslint from 'typescript-eslint';
+import { defineConfig, globalIgnores } from 'eslint/config';
 export default defineConfig([
-  globalIgnores(['dist']),
-  {
-    files: ['**/*.{ts,tsx}'],
-    extends: [
-      js.configs.recommended,
-      tseslint.configs.recommended,
-      reactHooks.configs.flat.recommended,
-      reactRefresh.configs.vite,
-    ],
-    languageOptions: {
-      ecmaVersion: 2020,
-      globals: globals.browser,
+    globalIgnores(['dist']),
+    {
+        files: ['**/*.{ts,tsx}'],
+        extends: [
+            js.configs.recommended,
+            tseslint.configs.recommended,
+            reactHooks.configs.flat.recommended,
+            reactRefresh.configs.vite,
+        ],
+        languageOptions: {
+            ecmaVersion: 2020,
+            globals: globals.browser,
+        },
     },
-  },
-])
+]);

frontend/index.html

@@ -1,16 +1,21 @@
 <!doctype html>
 <html lang="en">
-  <head>
-    <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/icon.svg" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <link rel="preconnect" href="https://fonts.googleapis.com">
-    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
-    <link href="https://fonts.googleapis.com/css2?family=DM+Sans:wght@300..800&family=Figtree:wght@300..900&family=Geist:wght@100..900&family=Google+Sans+Code:ital,wght@0,300..800;1,300..800&family=Google+Sans:ital,opsz,wght@0,17..18,400..700;1,17..18,400..700&family=Inter:wght@300..800&family=JetBrains+Mono:ital,wght@0,100..800;1,100..800&family=Manrope:wght@300..800&family=Noto+Sans:wght@100..900&family=Nunito+Sans:opsz,wght@6..12,200..1000&family=Outfit:wght@100..900&family=Plus+Jakarta+Sans:wght@300..800&family=Poppins:wght@300;400;500;600;700;800&family=Public+Sans:ital,wght@0,100..900;1,100..900&family=Raleway:wght@100..900&family=Roboto:wght@300;400;500;700;900&family=Space+Grotesk:wght@300..700&display=swap" rel="stylesheet">
-    <title>SpotiFLAC</title>
-  </head>
-  <body>
-    <div id="root"></div>
-    <script type="module" src="/src/main.tsx"></script>
-  </body>
-</html>
+
+<head>
+  <meta charset="UTF-8" />
+  <link rel="icon" type="image/svg+xml" href="/icon.svg" />
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+  <link rel="preconnect" href="https://fonts.googleapis.com">
+  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+  <link
+    href="https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,200..800&family=DM+Sans:wght@300..800&family=Figtree:wght@300..900&family=Geist:wght@100..900&family=Google+Sans+Code:ital,wght@0,300..800;1,300..800&family=Google+Sans:ital,opsz,wght@0,17..18,400..700;1,17..18,400..700&family=Inter:wght@300..800&family=JetBrains+Mono:ital,wght@0,100..800;1,100..800&family=Manrope:wght@300..800&family=Noto+Sans:wght@100..900&family=Nunito+Sans:opsz,wght@6..12,200..1000&family=Outfit:wght@100..900&family=Plus+Jakarta+Sans:wght@300..800&family=Poppins:wght@300;400;500;600;700;800&family=Public+Sans:ital,wght@0,100..900;1,100..900&family=Raleway:wght@100..900&family=Roboto:wght@300;400;500;700;900&family=Space+Grotesk:wght@300..700&display=swap"
+    rel="stylesheet">
+  <title>SpotiFLAC</title>
+</head>
+
+<body>
+  <div id="root"></div>
+  <script type="module" src="/src/main.tsx"></script>
+</body>
+
+</html>

frontend/package.json

@@ -16,10 +16,13 @@
     "@radix-ui/react-context-menu": "^2.2.16",
     "@radix-ui/react-dialog": "^1.1.15",
     "@radix-ui/react-label": "^2.1.8",
+    "@radix-ui/react-menubar": "^1.1.16",
     "@radix-ui/react-progress": "^1.1.8",
+    "@radix-ui/react-scroll-area": "^1.2.10",
     "@radix-ui/react-select": "^2.2.6",
     "@radix-ui/react-slot": "^1.2.4",
     "@radix-ui/react-switch": "^1.2.6",
+    "@radix-ui/react-tabs": "^1.1.13",
     "@radix-ui/react-toggle": "^1.1.10",
     "@radix-ui/react-toggle-group": "^1.1.11",
     "@radix-ui/react-tooltip": "^1.2.8",
@@ -27,7 +30,7 @@
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "lucide-react": "^0.562.0",
-    "motion": "^12.23.26",
+    "motion": "^12.26.2",
     "next-themes": "^0.4.6",
     "react": "^19.2.3",
     "react-dom": "^19.2.3",
@@ -37,18 +40,18 @@
   },
   "devDependencies": {
     "@eslint/js": "^9.39.2",
-    "@types/node": "^25.0.3",
-    "@types/react": "^19.2.7",
+    "@types/node": "^25.0.8",
+    "@types/react": "^19.2.8",
     "@types/react-dom": "^19.2.3",
     "@vitejs/plugin-react": "^5.1.2",
     "eslint": "^9.39.2",
     "eslint-plugin-react-hooks": "^7.0.1",
     "eslint-plugin-react-refresh": "^0.4.26",
-    "globals": "^16.5.0",
+    "globals": "^17.0.0",
     "sharp": "^0.34.5",
     "tw-animate-css": "^1.4.0",
     "typescript": "~5.9.3",
-    "typescript-eslint": "^8.50.1",
-    "vite": "^7.3.0"
+    "typescript-eslint": "^8.53.0",
+    "vite": "^7.3.1"
   }
-}
+}

frontend/package.json.md5

@@ -1 +1 @@
-0f9764c2a4597a75120d3e76c32af7a9
+9fee02ec6592ede9ade4b36d56bd4d6d

frontend/scripts/generate-icon.js

@@ -2,32 +2,23 @@ import sharp from 'sharp';
 import { readFileSync, mkdirSync } from 'fs';
 import { dirname, join } from 'path';
 import { fileURLToPath } from 'url';
-
 const __dirname = dirname(fileURLToPath(import.meta.url));
 const rootDir = join(__dirname, '..', '..');
-
 const svgPath = join(rootDir, 'frontend', 'public', 'icon.svg');
 const outputPath = join(rootDir, 'build', 'appicon.png');
-
 async function generateIcon() {
-  try {
-    // Ensure build directory exists
-    mkdirSync(join(rootDir, 'build'), { recursive: true });
-
-    // Read SVG
-    const svgBuffer = readFileSync(svgPath);
-
-    // Convert SVG to PNG (1024x1024 for Wails)
-    await sharp(svgBuffer)
-      .resize(1024, 1024)
-      .png()
-      .toFile(outputPath);
-
-    console.log('✓ Icon generated:', outputPath);
-  } catch (error) {
-    console.error('✗ Failed to generate icon:', error.message);
-    process.exit(1);
-  }
+    try {
+        mkdirSync(join(rootDir, 'build'), { recursive: true });
+        const svgBuffer = readFileSync(svgPath);
+        await sharp(svgBuffer)
+            .resize(1024, 1024)
+            .png()
+            .toFile(outputPath);
+        console.log('✓ Icon generated:', outputPath);
+    }
+    catch (error) {
+        console.error('✗ Failed to generate icon:', error.message);
+        process.exit(1);
+    }
 }
-
 generateIcon();

frontend/src/assets/github-lang-colors.ts

@@ -0,0 +1,18 @@
+export const langColors: Record<string, string> = {
+    "TypeScript": "#2b7489",
+    "Go": "#375eab",
+    "Python": "#3572A5",
+    "CSS": "#563d7c",
+    "HTML": "#e44b23",
+    "JavaScript": "#f1e05a",
+    "Java": "#b07219",
+    "C": "#555555",
+    "C Sharp": "#178600",
+    "cpp": "#f34b7d",
+    "Ruby": "#701516",
+    "PHP": "#4F5D95",
+    "Swift": "#ffac45",
+    "Kotlin": "#F18E33",
+    "Rust": "#dea584",
+    "Shell": "#89e051"
+};

frontend/src/assets/icons/next.svg

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg id="Layer_1" xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:sketch="http://www.bohemiancoding.com/sketch/ns" viewBox="0 0 512 512">
+  <!-- Generator: Adobe Illustrator 29.8.3, SVG Export Plug-In . SVG Version: 2.1.1 Build 3)  -->
+  <defs>
+    <style>
+      .st0 {
+        fill: #733e0a;
+      }
+
+      .st1 {
+        fill: #fdc700;
+      }
+
+      .st2 {
+        fill: #1ed760;
+      }
+    </style>
+  </defs>
+  <path class="st2" d="M384.2,203.1c-46.4-23.4-101.2-37.1-159.1-37.1s-64.9,4.4-95.2,12.7l2.6-.6c-1.8.6-3.8.9-6,.9-11,0-19.9-8.9-19.9-19.9s5.8-16.4,13.8-19h.2c77.1-22.9,204-18.5,284.4,29.3,6.1,3.8,10.2,10.4,10.2,18.1s-1,7.3-2.7,10.3h0c-4.3,5-10.4,8-17.5,8s-7.6-1-10.8-2.8h0v.1ZM381.9,263.9c-2.9,4.9-8.1,7.9-14.1,7.9s-6.2-.9-8.8-2.6h0c-39.7-22.6-87.2-35.9-137.8-35.9s-54.8,4.1-80.2,11.6l2-.5c-1.5.4-3.2.8-5,.8-9.1,0-16.5-7.3-16.5-16.5s4.9-13.6,11.4-15.7h0c26.1-7.7,56.1-12.2,87.2-12.2,57.7,0,111.9,15.5,158.6,42.4l-1.5-.9c4.4,2.8,7.1,7.5,7.1,13s-.9,6.1-2.6,8.5h.3-.1v.1ZM355.9,323.6c-2.3,3.9-6.4,6.5-11.3,6.5s-5.2-.9-7.3-2.2h0c-34.7-19.5-76.1-30.9-120.1-30.9s-49.7,3.8-72.7,10.8l1.8-.4c-.9.3-2.1.4-3.2.4-7.3,0-13.4-6.1-13.4-13.4s4.4-11.5,10.1-13h0c22.9-6.7,49.2-10.7,76.4-10.7,49.3,0,95.5,12.8,135.6,35.4l-1.5-.8c4.4,2.2,7.3,6.6,7.3,11.7s-.7,4.8-1.9,6.6h.2,0ZM256,10h0c-119.9,0-217.1,97.2-217.1,217.1s97.2,217.1,217.1,217.1,217.1-97.2,217.1-217.1h0c-.3-119.7-97.3-216.7-217.1-217.1h0Z"/>
+  <path class="st1" d="M53.9,351h398.8c11.2,0,20.4,9,20.4,20.1v110.8c0,11.1-9.1,20.1-20.4,20.1H53.9c-11.2,0-20.4-9-20.4-20.1v-110.8c0-11.1,9.1-20.1,20.4-20.1h0Z"/>
+  <g>
+    <path class="st0" d="M70.76,465.35v-77.71h23.4l50.61,59.75-5.66,1.31v-61.06h18.83v77.71h-23.51l-49.52-58.45,4.57-1.74v60.19h-18.72Z"/>
+    <path class="st0" d="M171.65,465.35v-77.71h76.51v15.78h-55.73v15.24h51.48v15.13h-51.48v15.78h55.73v15.78h-76.51Z"/>
+    <path class="st0" d="M254.8,465.35l41.47-45.17-2.39,9.25-37.33-41.79h26.34l28.08,32.65-13.17-.44,29.17-32.22h23.51l-39.07,42.01.65-8.82,39.72,44.51h-26.23l-29.82-34.72,14.26-.65-31.56,35.37h-23.62Z"/>
+    <path class="st0" d="M387.8,465.35v-62.04h-32.76v-15.67h86.2v15.67h-32.65v62.04h-20.79Z"/>
+  </g>
+</svg>

frontend/src/assets/icons/spotidownloader.svg

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:sketch="http://www.bohemiancoding.com/sketch/ns" viewBox="0 0 512 512">
+  <defs>
+    <style>
+      .cls-1 {
+        fill: #2dc261;
+        fill-rule: evenodd;
+      }
+    </style>
+  </defs>
+  <!-- Generator: Adobe Illustrator 28.7.2, SVG Export Plug-In . SVG Version: 1.2.0 Build 154)  -->
+  <g>
+    <g id="Layer_1">
+      <g id="SVGRepo_iconCarrier">
+        <g id="Page-1" sketch:type="MSPage">
+          <g id="Icon-Set-Filled" sketch:type="MSLayerGroup">
+            <path id="arrow-right-circle" class="cls-1" d="M350.1,268.7l-81.5,81.5c-5.6,5.6-14.7,5.6-20.4,0-5.6-5.6-5.6-14.8,0-20.5l59.4-59.3h-152.5c-8,0-14.4-6.5-14.4-14.4s6.4-14.4,14.4-14.4h152.5l-59.4-59.3c-5.6-5.6-5.6-14.7,0-20.5,5.6-5.6,14.7-5.6,20.4,0l81.5,81.5c3.5,3.5,4.5,8.2,3.7,12.7.8,4.5-.3,9.2-3.7,12.7h0ZM256,25.6c-127.3,0-230.4,103.1-230.4,230.4s103.2,230.4,230.4,230.4,230.4-103.1,230.4-230.4S383.3,25.6,256,25.6h0Z" sketch:type="MSShapeGroup"/>
+          </g>
+        </g>
+      </g>
+    </g>
+  </g>
+</svg>

frontend/src/assets/icons/spotiflac.svg

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:sketch="http://www.bohemiancoding.com/sketch/ns" viewBox="0 0 512 512">
+  <defs>
+    <style>
+      .cls-1 {
+        fill: #733e0a;
+      }
+
+      .cls-2 {
+        fill: #fdc700;
+      }
+
+      .cls-3 {
+        fill: #1ed760;
+      }
+    </style>
+  </defs>
+  <!-- Generator: Adobe Illustrator 28.7.2, SVG Export Plug-In . SVG Version: 1.2.0 Build 154)  -->
+  <g>
+    <g id="Layer_1">
+      <g>
+        <g id="_1818452274576">
+          <g id="SVGRepo_iconCarrier">
+            <path class="cls-3" d="M384.2,203.1c-46.4-23.4-101.2-37.1-159.1-37.1s-64.9,4.4-95.2,12.7l2.6-.6c-1.8.6-3.8.9-6,.9-11,0-19.9-8.9-19.9-19.9s5.8-16.4,13.8-19h.2c77.1-22.9,204-18.5,284.4,29.3,6.1,3.8,10.2,10.4,10.2,18.1s-1,7.3-2.7,10.3h0c-4.3,5-10.4,8-17.5,8s-7.6-1-10.8-2.8h0ZM381.9,263.9c-2.9,4.9-8.1,7.9-14.1,7.9s-6.2-.9-8.8-2.6h0c-39.7-22.6-87.2-35.9-137.8-35.9s-54.8,4.1-80.2,11.6l2-.5c-1.5.4-3.2.8-5,.8-9.1,0-16.5-7.3-16.5-16.5s4.9-13.6,11.4-15.7h0c26.1-7.7,56.1-12.2,87.2-12.2,57.7,0,111.9,15.5,158.6,42.4l-1.5-.9c4.4,2.8,7.1,7.5,7.1,13s-.9,6.1-2.6,8.5h.3-.1ZM355.9,323.6c-2.3,3.9-6.4,6.5-11.3,6.5s-5.2-.9-7.3-2.2h0c-34.7-19.5-76.1-30.9-120.1-30.9s-49.7,3.8-72.7,10.8l1.8-.4c-.9.3-2.1.4-3.2.4-7.3,0-13.4-6.1-13.4-13.4s4.4-11.5,10.1-13h0c22.9-6.7,49.2-10.7,76.4-10.7,49.3,0,95.5,12.8,135.6,35.4l-1.5-.8c4.4,2.2,7.3,6.6,7.3,11.7s-.7,4.8-1.9,6.6h.2,0ZM256,10h0c-119.9,0-217.1,97.2-217.1,217.1s97.2,217.1,217.1,217.1,217.1-97.2,217.1-217.1h0c-.3-119.7-97.3-216.7-217.1-217.1h0Z"/>
+          </g>
+        </g>
+        <path class="cls-2" d="M53.9,351h398.8c11.2,0,20.4,9,20.4,20.1v110.8c0,11.1-9.1,20.1-20.4,20.1H53.9c-11.2,0-20.4-9-20.4-20.1v-110.8c0-11.1,9.1-20.1,20.4-20.1Z"/>
+        <g>
+          <path class="cls-1" d="M113.6,479.3c-2.4,0-4.4-.8-5.9-2.3-1.5-1.5-2.3-3.5-2.3-5.8v-89.3c0-2.4.8-4.3,2.3-5.9,1.5-1.5,3.5-2.3,5.9-2.3s4.3.8,5.8,2.3c1.5,1.5,2.3,3.5,2.3,5.9v35h17.5v-35c0-2.4.8-4.3,2.3-5.9,1.5-1.5,3.5-2.3,5.9-2.3s4.3.8,5.8,2.3c1.5,1.5,2.3,3.5,2.3,5.9v89.3c0,2.4-.7,4.4-2.2,5.9-1.5,1.5-3.5,2.2-5.9,2.2s-4.4-.8-5.9-2.3c-1.5-1.5-2.3-3.5-2.3-5.8v-39.5h-17.5v39.5c0,2.4-.8,4.4-2.3,5.9-1.5,1.5-3.5,2.2-5.8,2.2Z"/>
+          <path class="cls-1" d="M175.9,479.3c-2.4,0-4.4-.8-5.9-2.3-1.5-1.5-2.3-3.5-2.3-5.8v-89.3c0-2.4.8-4.3,2.3-5.9,1.5-1.5,3.5-2.3,5.9-2.3s4.3.8,5.8,2.3c1.5,1.5,2.3,3.5,2.3,5.9v89.3c0,2.4-.8,4.4-2.3,5.9-1.5,1.5-3.5,2.2-5.8,2.2Z"/>
+          <path class="cls-1" d="M200.4,434c-2,0-3.7-.7-5.2-2.2-1.5-1.4-2.2-3.2-2.2-5.3s.7-3.8,2.2-5.2c1.4-1.4,3.2-2.2,5.2-2.2h19.5c2,0,3.8.7,5.2,2.2s2.2,3.2,2.2,5.2-.7,3.8-2.2,5.3-3.2,2.2-5.2,2.2h-19.5Z"/>
+          <path class="cls-1" d="M250.3,477.2c-1.4,1.4-3.4,2.1-6,2.1s-4.6-.7-6-2.1c-1.4-1.4-2.1-3.4-2.1-6v-88.4c0-2.6.7-4.6,2.1-6,1.4-1.4,3.4-2.1,6-2.1h16c8.4,0,14.5,2,18.4,5.9,3.9,3.9,5.8,9.9,5.8,18v6.4c0,10.7-3.6,17.6-10.7,20.5v.3c3.9,1.2,6.7,3.6,8.4,7.2s2.5,8.5,2.5,14.7v16.1c0,2.5.2,4.5.6,6.1.4,1.5.6,2.8.6,4.1,0,3.6-2.6,5.4-7.7,5.4s-5.9-1-7.5-2.9c-1.6-2-2.4-5.2-2.4-9.8v-19.8c0-4.8-.8-8.1-2.3-10-1.5-1.9-4.2-2.8-7.9-2.8h-5.6v37.2c0,2.6-.7,4.6-2.1,6ZM252.4,419.1h5.9c3.2,0,5.7-.8,7.3-2.5s2.5-4.5,2.5-8.5v-8c0-3.7-.7-6.4-2-8.1s-3.4-2.6-6.3-2.6h-7.5v29.7Z"/>
+          <path class="cls-1" d="M304,478.4c-2.4,0-4.3-.8-5.9-2.3-1.5-1.5-2.3-3.5-2.3-5.9v-87.5c0-2.4.8-4.3,2.3-5.9s3.5-2.3,5.9-2.3h29.8c2.1,0,3.9.7,5.3,2.1,1.4,1.4,2.1,3.2,2.1,5.3s-.7,3.9-2.1,5.3c-1.4,1.4-3.2,2.1-5.3,2.1h-21.7v27.4h15.9c2.1,0,3.9.7,5.3,2.1,1.4,1.4,2.1,3.2,2.1,5.3s-.7,3.9-2.1,5.3c-1.4,1.4-3.2,2.1-5.3,2.1h-15.9v31.9h21.7c2.1,0,3.9.7,5.3,2.1,1.4,1.4,2.1,3.2,2.1,5.3s-.7,3.9-2.1,5.3c-1.4,1.4-3.2,2.1-5.3,2.1h-29.8Z"/>
+          <path class="cls-1" d="M371.2,479.9c-7.9,0-13.8-2.2-17.9-6.6-4.1-4.4-6.1-10.6-6.1-18.6s.7-4.3,2-5.7c1.4-1.4,3.3-2.1,5.7-2.1s4.2.7,5.6,2c1.4,1.3,2.1,3.4,2.1,6.2,0,6.8,2.8,10.1,8.5,10.1s8.5-3.5,8.5-10.4-1-8.1-3-11.4c-2-3.3-5.6-7.3-11-12-6.8-5.9-11.5-11.3-14.1-16.1-2.7-4.8-4-10.2-4-16.2s2.1-14.6,6.3-19c4.2-4.5,10.2-6.7,18.1-6.7s13.5,2.2,17.6,6.6c4.1,4.4,6.2,10.1,6.2,17s-2.6,7.8-7.7,7.8-4.4-.7-5.7-2.2-2-3.3-2-5.6-.7-4.9-2.1-6.4c-1.4-1.5-3.4-2.3-6-2.3-5.5,0-8.2,3.3-8.2,9.9s1,7.3,3.1,10.5c2.1,3.2,5.7,7.2,11,11.9,6.8,6,11.4,11.4,14,16.3,2.6,4.9,3.9,10.5,3.9,17s-2.1,15-6.3,19.5c-4.2,4.6-10.3,6.8-18.3,6.8Z"/>
+        </g>
+      </g>
+    </g>
+  </g>
+</svg>

frontend/src/assets/icons/spotubedl.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="#00bc7d" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="icon icon-tabler icons-tabler-outline icon-tabler-music-down"><path stroke="none" d="M0 0h24v24H0z" fill="none"/><path d="M3 17a3 3 0 1 0 6 0a3 3 0 0 0 -6 0" /><path d="M9 17v-13h10v8" /><path d="M9 8h10" /><path d="M19 16v6" /><path d="M22 19l-3 3l-3 -3" /></svg>

frontend/src/assets/icons/xbatchdl.svg

@@ -0,0 +1,11 @@
+<?xml version="1.0" ?>
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1"
+    id="Layer_1" width="512px" height="512px" viewBox="0 0 24 24" style="enable-background:new 0 0 24 24;"
+    xml:space="preserve">
+    <g fill="#1da0f1">
+        <polygon
+            points="12.153992,10.729553 8.088684,5.041199 5.92041,5.041199 10.956299,12.087097 11.59021,12.97345 15.900635,19.009583 18.068909,19.009583 12.785217,11.615906  " />
+        <path
+            d="M21.15979,1H2.84021C1.823853,1,1,1.823853,1,2.84021v18.31958C1,22.176147,1.823853,23,2.84021,23h18.31958   C22.176147,23,23,22.176147,23,21.15979V2.84021C23,1.823853,22.176147,1,21.15979,1z M15.235352,20l-4.362549-6.213013   L5.411438,20H4l6.246887-7.104675L4,4h4.764648l4.130127,5.881958L18.06958,4h1.411377l-5.95697,6.775635L20,20H15.235352z" />
+    </g>
+</svg>

frontend/src/assets/kofi_symbol.svg

@@ -0,0 +1,13 @@
+<svg width="241" height="194" viewBox="0 0 241 194" fill="none" xmlns="http://www.w3.org/2000/svg">
+<mask id="mask0_1_219" style="mask-type:luminance" maskUnits="userSpaceOnUse" x="-1" y="0" width="242" height="194">
+<path d="M240.469 0.958984H-0.00585938V193.918H240.469V0.958984Z" fill="white"/>
+</mask>
+<g mask="url(#mask0_1_219)">
+<path d="M96.1344 193.911C61.1312 193.911 32.6597 178.256 15.9721 149.829C1.19788 124.912 -0.00585938 97.9229 -0.00585938 67.7662C-0.00585938 49.8876 5.37293 34.3215 15.5413 22.7466C24.8861 12.1157 38.1271 5.22907 52.8317 3.35378C70.2858 1.14271 91.9848 0.958984 114.545 0.958984C151.259 0.958984 161.63 1.4088 176.075 2.85328C195.29 4.76026 211.458 11.932 222.824 23.5955C234.368 35.4428 240.469 51.2624 240.469 69.3627V72.9994C240.469 103.885 219.821 129.733 191.046 136.759C188.898 141.827 186.237 146.871 183.089 151.837L183.006 151.964C172.869 167.632 149.042 193.918 103.401 193.918H96.1281L96.1344 193.911Z" fill="white"/>
+<path d="M174.568 17.9772C160.927 16.6151 151.38 16.1589 114.552 16.1589C90.908 16.1589 70.9008 16.387 54.7644 18.4334C33.3949 21.164 15.2058 37.5285 15.2058 67.7674C15.2058 98.0066 16.796 121.422 29.0741 142.107C42.9425 165.751 66.1302 178.707 96.1412 178.707H103.414C140.242 178.707 160.25 159.156 170.253 143.698C174.574 136.874 177.754 130.058 179.801 123.234C205.947 120.96 225.27 99.3624 225.27 72.9941V69.3577C225.27 40.9432 206.631 21.164 174.574 17.9772H174.568Z" fill="white"/>
+<path d="M15.1975 67.7674C15.1975 37.5285 33.3866 21.164 54.7559 18.4334C70.8987 16.387 90.906 16.1589 114.544 16.1589C151.372 16.1589 160.919 16.6151 174.559 17.9772C206.617 21.1576 225.255 40.937 225.255 69.3577V72.9941C225.255 99.3687 205.932 120.966 179.786 123.234C177.74 130.058 174.559 136.874 170.238 143.698C160.235 159.156 140.228 178.707 103.4 178.707H96.1264C66.1155 178.707 42.9277 165.751 29.0595 142.107C16.7814 121.422 15.1912 98.4563 15.1912 67.7674" fill="#202020"/>
+<path d="M32.2469 67.9899C32.2469 97.3168 34.0654 116.184 43.6127 133.689C54.5225 153.924 74.3018 161.653 96.8117 161.653H103.857C133.411 161.653 147.736 147.329 155.693 134.829C159.558 128.462 162.966 121.417 164.784 112.547L166.147 106.864H174.332C192.521 106.864 208.208 92.09 208.208 73.2166V69.8082C208.208 48.6669 195.024 37.5228 172.058 34.7987C159.102 33.6646 151.372 33.2084 114.538 33.2084C89.7602 33.2084 72.0272 33.4364 58.6152 35.4828C39.7483 38.2134 32.2407 48.8951 32.2407 67.9899" fill="white"/>
+<path d="M166.158 83.6801C166.158 86.4107 168.204 88.4572 171.841 88.4572C183.435 88.4572 189.802 81.8619 189.802 70.9523C189.802 60.0427 183.435 53.2195 171.841 53.2195C168.204 53.2195 166.158 55.2657 166.158 57.9963V83.6866V83.6801Z" fill="#202020"/>
+<path d="M54.5321 82.3198C54.5321 95.732 62.0332 107.326 71.5807 116.424C77.9478 122.562 87.9515 128.93 94.7685 133.022C96.8147 134.157 98.8611 134.841 101.136 134.841C103.866 134.841 106.134 134.157 107.959 133.022C114.782 128.93 124.779 122.562 130.919 116.424C140.694 107.332 148.195 95.7383 148.195 82.3198C148.195 67.7673 137.286 54.8115 121.599 54.8115C112.28 54.8115 105.912 59.5882 101.136 66.1772C96.8147 59.582 90.2259 54.8115 80.9001 54.8115C64.9855 54.8115 54.5256 67.7673 54.5256 82.3198" fill="#FF5A16"/>
+</g>
+</svg>

frontend/src/components/AboutPage.tsx

@@ -0,0 +1,466 @@
+import { useState, useEffect } from "react";
+import { Button } from "@/components/ui/button";
+import { openExternal } from "@/lib/utils";
+import { GetOSInfo } from "../../wailsjs/go/main/App";
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
+import { Label } from "@/components/ui/label";
+import { Input } from "@/components/ui/input";
+import { Textarea } from "@/components/ui/textarea";
+import { ToggleGroup, ToggleGroupItem } from "@/components/ui/toggle-group";
+import { Bug, Lightbulb, ExternalLink, Star, GitFork, Clock, Download, CircleHelp, Blocks, Heart } from "lucide-react";
+import AudioTTSProIcon from "@/assets/audiotts-pro.webp";
+import ChatGPTTTSIcon from "@/assets/chatgpt-tts.webp";
+import XProIcon from "@/assets/x-pro.webp";
+import SpotubeDLIcon from "@/assets/icons/spotubedl.svg";
+import SpotiDownloaderIcon from "@/assets/icons/spotidownloader.svg";
+import XBatchDLIcon from "@/assets/icons/xbatchdl.svg";
+import SpotiFLACNextIcon from "@/assets/icons/next.svg";
+import BmcLogo from "@/assets/bmc-logo.svg";
+import KofiLogo from "@/assets/kofi_symbol.svg";
+import { langColors } from "@/assets/github-lang-colors";
+import { ScrollArea } from "@/components/ui/scroll-area";
+import { DragDropMedia } from "./DragDropTextarea";
+interface AboutPageProps {
+    version: string;
+}
+export function AboutPage({ version }: AboutPageProps) {
+    const [os, setOs] = useState("Unknown");
+    const [location, setLocation] = useState("Unknown");
+    const [activeTab, setActiveTab] = useState<"bug_report" | "feature_request" | "faq" | "projects" | "support">("bug_report");
+    const [bugType, setBugType] = useState("Track");
+    const [problem, setProblem] = useState("");
+    const [spotifyUrl, setSpotifyUrl] = useState("");
+    const [bugContext, setBugContext] = useState("");
+    const [featureDesc, setFeatureDesc] = useState("");
+    const [useCase, setUseCase] = useState("");
+    const [featureContext, setFeatureContext] = useState("");
+    const [repoStats, setRepoStats] = useState<Record<string, any>>({});
+    useEffect(() => {
+        const fetchOS = async () => {
+            try {
+                const info = await GetOSInfo();
+                setOs(info);
+            }
+            catch (err) {
+                const userAgent = window.navigator.userAgent;
+                if (userAgent.indexOf("Win") !== -1)
+                    setOs("Windows");
+                else if (userAgent.indexOf("Mac") !== -1)
+                    setOs("macOS");
+                else if (userAgent.indexOf("Linux") !== -1)
+                    setOs("Linux");
+            }
+        };
+        fetchOS();
+        const fetchLocation = async () => {
+            try {
+                const response = await fetch('https://ipapi.co/json/');
+                if (response.ok) {
+                    const data = await response.json();
+                    const city = data.city || '';
+                    const region = data.region || '';
+                    const country = data.country_name || '';
+                    const parts = [city, region, country].filter(Boolean);
+                    setLocation(parts.join(', ') || 'Unknown');
+                }
+                else {
+                    const timezone = Intl.DateTimeFormat().resolvedOptions().timeZone;
+                    setLocation(timezone);
+                }
+            }
+            catch (err) {
+                const timezone = Intl.DateTimeFormat().resolvedOptions().timeZone;
+                setLocation(timezone);
+            }
+        };
+        fetchLocation();
+        const fetchRepoStats = async () => {
+            const CACHE_KEY = 'github_repo_stats';
+            const CACHE_DURATION = 1000 * 60 * 60;
+            const cached = localStorage.getItem(CACHE_KEY);
+            if (cached) {
+                try {
+                    const { data, timestamp } = JSON.parse(cached);
+                    if (Date.now() - timestamp < CACHE_DURATION) {
+                        setRepoStats(data);
+                        return;
+                    }
+                }
+                catch (err) {
+                    console.error('Failed to parse cache:', err);
+                }
+            }
+            const repos = [
+                { name: 'SpotiDownloader', owner: 'afkarxyz' },
+                { name: 'SpotiFLAC-Next', owner: 'spotiverse' },
+                { name: 'Twitter-X-Media-Batch-Downloader', owner: 'afkarxyz' }
+            ];
+            const stats: Record<string, any> = {};
+            for (const repo of repos) {
+                try {
+                    const [repoRes, releasesRes, langsRes] = await Promise.all([
+                        fetch(`https://api.github.com/repos/${repo.owner}/${repo.name}`),
+                        fetch(`https://api.github.com/repos/${repo.owner}/${repo.name}/releases`),
+                        fetch(`https://api.github.com/repos/${repo.owner}/${repo.name}/languages`)
+                    ]);
+                    if (repoRes.status === 403) {
+                        if (cached) {
+                            const { data } = JSON.parse(cached);
+                            setRepoStats(data);
+                        }
+                        return;
+                    }
+                    if (repoRes.ok && releasesRes.ok && langsRes.ok) {
+                        const repoData = await repoRes.json();
+                        const releases = await releasesRes.json();
+                        const languages = await langsRes.json();
+                        let totalDownloads = 0;
+                        let latestDownloads = 0;
+                        if (releases.length > 0) {
+                            latestDownloads = releases[0].assets?.reduce((sum: number, asset: any) => sum + (asset.download_count || 0), 0) || 0;
+                            totalDownloads = releases.reduce((sum: number, release: any) => {
+                                return sum + (release.assets?.reduce((s: number, a: any) => s + (a.download_count || 0), 0) || 0);
+                            }, 0);
+                        }
+                        const topLangs = Object.entries(languages)
+                            .sort(([, a]: any, [, b]: any) => b - a)
+                            .slice(0, 4)
+                            .map(([lang]) => lang);
+                        stats[repo.name] = {
+                            stars: repoData.stargazers_count,
+                            forks: repoData.forks_count,
+                            createdAt: repoData.created_at,
+                            totalDownloads,
+                            latestDownloads,
+                            languages: topLangs
+                        };
+                    }
+                }
+                catch (err) {
+                    console.error(`Failed to fetch stats for ${repo.name}:`, err);
+                    if (cached) {
+                        const { data } = JSON.parse(cached);
+                        setRepoStats(data);
+                        return;
+                    }
+                }
+            }
+            setRepoStats(stats);
+            localStorage.setItem(CACHE_KEY, JSON.stringify({ data: stats, timestamp: Date.now() }));
+        };
+        fetchRepoStats();
+    }, []);
+    const faqs = [
+        {
+            q: "Is this software free?",
+            a: "Yes. This software is completely free. You do not need an account, login, or subscription. All you need is an internet connection."
+        },
+        {
+            q: "Can using this software get my Spotify account suspended or banned?",
+            a: "No. This software has no connection to your Spotify account. Spotify data is obtained through reverse engineering of the Spotify Web Player, not through user authentication."
+        },
+        {
+            q: "Where does the audio come from?",
+            a: "The audio is fetched using third-party APIs."
+        },
+        {
+            q: "Why does metadata fetching sometimes fail?",
+            a: "This usually happens because your IP address has been rate-limited. You can wait and try again later, or use a VPN to bypass the rate limit."
+        },
+        {
+            q: "Why does Windows Defender or antivirus flag or delete the file?",
+            a: "This is a false positive. It likely happens because the executable is compressed using UPX. If you are concerned, you can fork the repository and build the software yourself from source."
+        }
+    ];
+    const formatTimeAgo = (dateString: string): string => {
+        const now = new Date();
+        const updated = new Date(dateString);
+        const diffMs = now.getTime() - updated.getTime();
+        const diffDays = Math.floor(diffMs / (1000 * 60 * 60 * 24));
+        const diffMonths = Math.floor(diffDays / 30);
+        if (diffDays === 0)
+            return 'today';
+        if (diffDays === 1)
+            return '1d';
+        if (diffDays < 30)
+            return `${diffDays}d`;
+        if (diffMonths === 1)
+            return '1mo';
+        if (diffMonths < 12)
+            return `${diffMonths}mo`;
+        const diffYears = Math.floor(diffMonths / 12);
+        return `${diffYears}y`;
+    };
+    const formatNumber = (num: number): string => {
+        if (num >= 1000) {
+            return num.toLocaleString();
+        }
+        return num.toString();
+    };
+    const getLangColor = (lang: string): string => {
+        return langColors[lang] || '#858585';
+    };
+    const handleSubmit = () => {
+        const title = activeTab === "bug_report"
+            ? `[Bug Report] ${problem.substring(0, 50)}${problem.length > 50 ? "..." : ""}`
+            : `[Feature Request] ${featureDesc.substring(0, 50)}${featureDesc.length > 50 ? "..." : ""}`;
+        let bodyContent = "";
+        if (activeTab === "bug_report") {
+            const contextContent = bugContext.trim() ? bugContext.trim() : "Type here or send screenshot/recording";
+            bodyContent = `### [Bug Report]
+
+#### Problem
+${problem || "Type here"}
+
+#### Type
+${bugType}
+
+#### Spotify URL
+${spotifyUrl || "Type here"}
+
+#### Additional Context
+${contextContent}
+
+#### Environment
+- SpotiFLAC Version: ${version}
+- OS: ${os}
+- Location: ${location}`;
+        }
+        else {
+            const contextContent = featureContext.trim() ? featureContext.trim() : "Type here or send screenshot/recording";
+            bodyContent = `### [Feature Request]
+
+#### Description
+${featureDesc || "Type here"}
+
+#### Use Case
+${useCase || "Type here"}
+
+#### Additional Context
+${contextContent}`;
+        }
+        const params = new URLSearchParams({
+            title: title,
+            body: bodyContent
+        });
+        const url = `https://github.com/afkarxyz/SpotiFLAC/issues/new?${params.toString()}`;
+        openExternal(url);
+    };
+    return (<div className={`flex flex-col space-y-4 ${activeTab === "faq" ? "h-[calc(100vh-10rem)]" : ""}`}>
+        <div className="flex items-center justify-between shrink-0">
+            <h2 className="text-2xl font-bold tracking-tight">About</h2>
+        </div>
+
+        <div className="flex gap-2 border-b shrink-0">
+            <Button variant={activeTab === "bug_report" ? "default" : "ghost"} size="sm" onClick={() => setActiveTab("bug_report")} className="rounded-b-none">
+                <Bug className="h-4 w-4"/>
+                Bug Report
+            </Button>
+            <Button variant={activeTab === "feature_request" ? "default" : "ghost"} size="sm" onClick={() => setActiveTab("feature_request")} className="rounded-b-none">
+                <Lightbulb className="h-4 w-4"/>
+                Feature Request
+            </Button>
+            <Button variant={activeTab === "faq" ? "default" : "ghost"} size="sm" onClick={() => setActiveTab("faq")} className="rounded-b-none">
+                <CircleHelp className="h-4 w-4"/>
+                FAQ
+            </Button>
+            <Button variant={activeTab === "projects" ? "default" : "ghost"} size="sm" onClick={() => setActiveTab("projects")} className="rounded-b-none">
+                <Blocks className="h-4 w-4"/>
+                Other Projects
+            </Button>
+            <Button variant={activeTab === "support" ? "default" : "ghost"} size="sm" onClick={() => setActiveTab("support")} className="rounded-b-none">
+                <Heart className="h-4 w-4"/>
+                Support Us
+            </Button>
+        </div>
+
+        <div className={`flex-1 min-h-0 ${activeTab === "faq" ? "overflow-hidden" : ""}`}>
+            {activeTab === "bug_report" && (<div className="flex flex-col">
+                    <div className="space-y-4 pt-4 flex flex-col">
+                        <div className="mt-4 pr-2">
+                           <div className="grid md:grid-cols-3 gap-6">
+                                    <div className="space-y-2 flex flex-col">
+                                        <Label>Problem</Label>
+                                        <Textarea className="h-56 resize-none" placeholder="Describe the problem..." value={problem} onChange={e => setProblem(e.target.value)}/>
+                                    </div>
+                                    <div className="space-y-2 flex flex-col">
+                                        <Label>Additional Context</Label>
+                                        <DragDropMedia className="min-h-[14rem]" value={bugContext} onChange={setBugContext}/>
+                                    </div>
+                                    <div className="space-y-4 flex flex-col">
+                                        <div className="space-y-2">
+                                            <Label>Type</Label>
+                                            <ToggleGroup type="single" value={bugType} onValueChange={(val) => {
+                if (val)
+                    setBugType(val);
+            }} className="justify-start w-full cursor-pointer">
+                                                <ToggleGroupItem value="Track" className="flex-1 cursor-pointer" aria-label="Toggle track">Track</ToggleGroupItem>
+                                                <ToggleGroupItem value="Album" className="flex-1 cursor-pointer" aria-label="Toggle album">Album</ToggleGroupItem>
+                                                <ToggleGroupItem value="Playlist" className="flex-1 cursor-pointer" aria-label="Toggle playlist">Playlist</ToggleGroupItem>
+                                                <ToggleGroupItem value="Artist" className="flex-1 cursor-pointer" aria-label="Toggle artist">Artist</ToggleGroupItem>
+                                            </ToggleGroup>
+                                        </div>
+                                        <div className="space-y-2">
+                                            <Label>Spotify URL</Label>
+                                            <Input placeholder="https://open.spotify.com/..." value={spotifyUrl} onChange={e => setSpotifyUrl(e.target.value)}/>
+                                        </div>
+                                    </div>
+                                </div>
+                            </div>
+                    </div>
+                    <div className="flex justify-center pt-4 shrink-0">
+                        <Button className="w-[200px] cursor-pointer gap-2" onClick={handleSubmit}>
+                            <ExternalLink className="h-4 w-4"/> Create Issue on GitHub
+                        </Button>
+                    </div>
+                </div>)}
+
+            {activeTab === "feature_request" && (<div className="flex flex-col">
+                    <div className="space-y-4 pt-4 flex flex-col">
+                        <div className="mt-4 pr-2">
+                            <div className="grid md:grid-cols-3 gap-6">
+                                    <div className="space-y-2 flex flex-col">
+                                        <Label>Description</Label>
+                                        <Textarea className="h-56 resize-none" placeholder="Describe your feature request..." value={featureDesc} onChange={e => setFeatureDesc(e.target.value)}/>
+                                    </div>
+                                    <div className="space-y-2 flex-col">
+                                        <Label>Use Case</Label>
+                                        <Textarea className="h-56 resize-none" placeholder="How would this feature be useful?" value={useCase} onChange={e => setUseCase(e.target.value)}/>
+                                    </div>
+                                    <div className="space-y-2 flex-col">
+                                        <Label>Additional Context</Label>
+                                        <DragDropMedia className="min-h-[14rem]" value={featureContext} onChange={setFeatureContext}/>
+                                    </div>
+                                </div>
+                            </div>
+                    </div>
+                    <div className="flex justify-center pt-4 shrink-0">
+                        <Button className="w-[200px] cursor-pointer gap-2" onClick={handleSubmit}>
+                            <ExternalLink className="h-4 w-4"/> Create Issue on GitHub
+                        </Button>
+                    </div>
+                </div>)}
+
+            {activeTab === "faq" && (<ScrollArea className="h-full">
+                     <div className="p-1 pr-4">
+                        <Card>
+                            <CardHeader>
+                                <CardTitle>Frequently Asked Questions</CardTitle>
+                            </CardHeader>
+                            <CardContent className="space-y-6">
+                                {faqs.map((faq, index) => (<div key={index} className="space-y-2">
+                                    <h3 className="font-medium text-base text-foreground/90">{faq.q}</h3>
+                                    <p className="text-sm text-muted-foreground leading-relaxed">{faq.a}</p>
+                                </div>))}
+                            </CardContent>
+                        </Card>
+                    </div>
+                </ScrollArea>)}
+
+            {activeTab === "projects" && (<div className="p-1 pr-2">
+                    <div className="grid gap-2 grid-cols-4">
+                            <div className="flex flex-col gap-2 h-full">
+                                <Card className="hover:bg-muted/50 hover:border-primary/50 transition-colors cursor-pointer flex-1" onClick={() => openExternal("https://exyezed.cc/")}>
+                                    <CardHeader>
+                                        <CardTitle>Browser Extensions & Scripts</CardTitle>
+                                        <CardDescription className="flex gap-3 pt-2">
+                                            <img src={AudioTTSProIcon} className="h-8 w-8 rounded-md shadow-sm" alt="AudioTTS Pro"/>
+                                            <img src={ChatGPTTTSIcon} className="h-8 w-8 rounded-md shadow-sm" alt="ChatGPT TTS"/>
+                                            <img src={XProIcon} className="h-8 w-8 rounded-md shadow-sm" alt="X Pro"/>
+                                        </CardDescription>
+                                    </CardHeader>
+                                </Card>
+                                <Card className="hover:bg-muted/50 hover:border-primary/50 transition-colors cursor-pointer flex-1" onClick={() => openExternal("https://spotubedl.com/")}>
+                                    <CardHeader>
+                                        <CardTitle className="flex items-center gap-2"><img src={SpotubeDLIcon} className="h-5 w-5" alt="SpotubeDL"/> SpotubeDL</CardTitle>
+                                        <CardDescription>Download Spotify Tracks, Albums, Playlists as MP3/OGG/Opus with High Quality.</CardDescription>
+                                    </CardHeader>
+                                </Card>
+                            </div>
+                            <Card className="hover:bg-muted/50 hover:border-primary/50 transition-colors cursor-pointer" onClick={() => openExternal("https://github.com/afkarxyz/SpotiDownloader")}>
+                                <CardHeader>
+                                    <CardTitle className="flex items-center gap-2"><img src={SpotiDownloaderIcon} className="h-5 w-5" alt="SpotiDownloader"/> SpotiDownloader</CardTitle>
+                                    <CardDescription>Get Spotify tracks in MP3 and FLAC via spotidownloader.com</CardDescription>
+                                </CardHeader>
+                                {repoStats['SpotiDownloader'] && (<CardContent className="space-y-3">
+                                    <div className="flex flex-wrap gap-2 text-xs">
+                                        {repoStats['SpotiDownloader'].languages?.map((lang: string) => (<span key={lang} className="px-2 py-0.5 rounded-full font-medium" style={{ backgroundColor: getLangColor(lang) + '20', color: getLangColor(lang) }}>{lang}</span>))}
+                                    </div>
+                                    <div className="flex items-center gap-4 text-xs text-muted-foreground">
+                                        <span className="flex items-center gap-1"><Star className="h-3.5 w-3.5 fill-amber-500 text-amber-500"/> {formatNumber(repoStats['SpotiDownloader'].stars)}</span>
+                                        <span className="flex items-center gap-1"><GitFork className="h-3.5 w-3.5"/> {repoStats['SpotiDownloader'].forks}</span>
+                                        <span className="flex items-center gap-1"><Clock className="h-3.5 w-3.5"/> {formatTimeAgo(repoStats['SpotiDownloader'].createdAt)}</span>
+                                    </div>
+                                    <div className="flex flex-col gap-1 text-xs text-muted-foreground items-start">
+                                        <span className="flex items-center gap-1"><Download className="h-3.5 w-3.5"/> TOTAL: {formatNumber(repoStats['SpotiDownloader'].totalDownloads)}</span>
+                                        <span className="flex items-center gap-1 text-green-600 dark:text-green-400"><Download className="h-3.5 w-3.5"/> LATEST: {formatNumber(repoStats['SpotiDownloader'].latestDownloads)}</span>
+                                    </div>
+                                </CardContent>)}
+                            </Card>
+                            <Card className="hover:bg-muted/50 hover:border-primary/50 transition-colors cursor-pointer" onClick={() => openExternal("https://github.com/spotiverse/SpotiFLAC-Next")}>
+                                <CardHeader>
+                                    <CardTitle className="flex items-center gap-2"><img src={SpotiFLACNextIcon} className="h-5 w-5" alt="SpotiFLAC Next"/> SpotiFLAC Next</CardTitle>
+                                    <CardDescription>Get Spotify tracks in Hi-Res lossless FLACs — no account required.</CardDescription>
+                                </CardHeader>
+                                {repoStats['SpotiFLAC-Next'] && (<CardContent className="space-y-3">
+                                    <div className="flex flex-wrap gap-2 text-xs">
+                                        {repoStats['SpotiFLAC-Next'].languages?.map((lang: string) => (<span key={lang} className="px-2 py-0.5 rounded-full font-medium" style={{ backgroundColor: getLangColor(lang) + '20', color: getLangColor(lang) }}>{lang}</span>))}
+                                    </div>
+                                    <div className="flex items-center gap-4 text-xs text-muted-foreground">
+                                        <span className="flex items-center gap-1"><Star className="h-3.5 w-3.5 fill-amber-500 text-amber-500"/> {formatNumber(repoStats['SpotiFLAC-Next'].stars)}</span>
+                                        <span className="flex items-center gap-1"><GitFork className="h-3.5 w-3.5"/> {repoStats['SpotiFLAC-Next'].forks}</span>
+                                        <span className="flex items-center gap-1"><Clock className="h-3.5 w-3.5"/> {formatTimeAgo(repoStats['SpotiFLAC-Next'].createdAt)}</span>
+                                    </div>
+                                    <div className="flex flex-col gap-1 text-xs text-muted-foreground items-start">
+                                        <span className="flex items-center gap-1"><Download className="h-3.5 w-3.5"/> TOTAL: {formatNumber(repoStats['SpotiFLAC-Next'].totalDownloads)}</span>
+                                        <span className="flex items-center gap-1 text-green-600 dark:text-green-400"><Download className="h-3.5 w-3.5"/> LATEST: {formatNumber(repoStats['SpotiFLAC-Next'].latestDownloads)}</span>
+                                    </div>
+                                </CardContent>)}
+                            </Card>
+                            <Card className="hover:bg-muted/50 hover:border-primary/50 transition-colors cursor-pointer" onClick={() => openExternal("https://github.com/afkarxyz/Twitter-X-Media-Batch-Downloader")}>
+                                <CardHeader>
+                                    <CardTitle className="flex items-center gap-2"><img src={XBatchDLIcon} className="h-5 w-5" alt="Twitter/X Media Batch Downloader"/> Twitter/X Media Batch Downloader</CardTitle>
+                                    <CardDescription>A GUI tool to download original-quality images and videos from Twitter/X accounts, powered by gallery-dl by @mikf</CardDescription>
+                                </CardHeader>
+                                {repoStats['Twitter-X-Media-Batch-Downloader'] && (<CardContent className="space-y-3">
+                                    <div className="flex flex-wrap gap-2 text-xs">
+                                        {repoStats['Twitter-X-Media-Batch-Downloader'].languages?.map((lang: string) => (<span key={lang} className="px-2 py-0.5 rounded-full font-medium" style={{ backgroundColor: getLangColor(lang) + '20', color: getLangColor(lang) }}>{lang}</span>))}
+                                    </div>
+                                    <div className="flex items-center gap-4 text-xs text-muted-foreground">
+                                        <span className="flex items-center gap-1"><Star className="h-3.5 w-3.5 fill-amber-500 text-amber-500"/> {formatNumber(repoStats['Twitter-X-Media-Batch-Downloader'].stars)}</span>
+                                        <span className="flex items-center gap-1"><GitFork className="h-3.5 w-3.5"/> {repoStats['Twitter-X-Media-Batch-Downloader'].forks}</span>
+                                        <span className="flex items-center gap-1"><Clock className="h-3.5 w-3.5"/> {formatTimeAgo(repoStats['Twitter-X-Media-Batch-Downloader'].createdAt)}</span>
+                                    </div>
+                                    <div className="flex flex-col gap-1 text-xs text-muted-foreground items-start">
+                                        <span className="flex items-center gap-1"><Download className="h-3.5 w-3.5"/> TOTAL: {formatNumber(repoStats['Twitter-X-Media-Batch-Downloader'].totalDownloads)}</span>
+                                        <span className="flex items-center gap-1 text-green-600 dark:text-green-400"><Download className="h-3.5 w-3.5"/> LATEST: {formatNumber(repoStats['Twitter-X-Media-Batch-Downloader'].latestDownloads)}</span>
+                                    </div>
+                                </CardContent>)}
+                            </Card>
+                        </div>
+                    </div>)}
+
+            
+            {activeTab === "support" && (<div className="flex flex-col items-center justify-center p-8 space-y-8">
+                <div className="text-center space-y-2">
+                    <h3 className="text-2xl font-bold tracking-tight">Support Our Work</h3>
+                    <p className="text-muted-foreground max-w-[500px]">
+                        If this software is useful and brings you value, consider supporting the project by buying me a coffee. Your support helps keep development going.
+                    </p>
+                </div>
+
+                <div className="grid sm:grid-cols-2 gap-4 w-full max-w-lg">
+                    <Button size="lg" className="h-16 text-lg font-semibold text-white gap-3 group" style={{ backgroundColor: "#72a4f2" }} onClick={() => openExternal("https://ko-fi.com/afkarxyz")}>
+                        <img src={KofiLogo} className="h-8 w-8 transition-transform group-hover:scale-110" alt="Ko-fi"/>
+                        Support me on Ko-fi
+                    </Button>
+
+                    <Button size="lg" className="h-16 text-lg font-semibold text-black gap-3 group" style={{ backgroundColor: "#ffdd00" }} onClick={() => openExternal("https://buymeacoffee.com/afkarxyz")}>
+                        <img src={BmcLogo} className="h-6 w-6 transition-transform group-hover:scale-110" alt="Buy Me a Coffee"/>
+                        Buy Me a Coffee
+                    </Button>
+                </div>
+            </div>)}
+        </div>
+    </div>);
+}

frontend/src/components/AlbumInfo.tsx

@@ -1,273 +1,147 @@
 import { Button } from "@/components/ui/button";
 import { Card, CardContent } from "@/components/ui/card";
-import { Download, FolderOpen, ImageDown, FileText } from "lucide-react";
+import { Download, FolderOpen, ImageDown, FileText, XCircle } from "lucide-react";
 import { Spinner } from "@/components/ui/spinner";
 import { Tooltip, TooltipContent, TooltipTrigger } from "@/components/ui/tooltip";
 import { SearchAndSort } from "./SearchAndSort";
 import { TrackList } from "./TrackList";
 import { DownloadProgress } from "./DownloadProgress";
 import type { TrackMetadata, TrackAvailability } from "@/types/api";
-
 interface AlbumInfoProps {
-  albumInfo: {
-    name: string;
-    artists: string;
-    images: string;
-    release_date: string;
-    total_tracks: number;
-    artist_id?: string;
-    artist_url?: string;
-  };
-  trackList: TrackMetadata[];
-  searchQuery: string;
-  sortBy: string;
-  selectedTracks: string[];
-  downloadedTracks: Set<string>;
-  failedTracks: Set<string>;
-  skippedTracks: Set<string>;
-  downloadingTrack: string | null;
-  isDownloading: boolean;
-  bulkDownloadType: "all" | "selected" | null;
-  downloadProgress: number;
-  currentDownloadInfo: { name: string; artists: string } | null;
-  currentPage: number;
-  itemsPerPage: number;
-  // Lyrics props
-  downloadedLyrics?: Set<string>;
-  failedLyrics?: Set<string>;
-  skippedLyrics?: Set<string>;
-  downloadingLyricsTrack?: string | null;
-  // Availability props
-  checkingAvailabilityTrack?: string | null;
-  availabilityMap?: Map<string, TrackAvailability>;
-  // Cover props
-  downloadedCovers?: Set<string>;
-  failedCovers?: Set<string>;
-  skippedCovers?: Set<string>;
-  downloadingCoverTrack?: string | null;
-  isBulkDownloadingCovers?: boolean;
-  isBulkDownloadingLyrics?: boolean;
-  onSearchChange: (value: string) => void;
-  onSortChange: (value: string) => void;
-  onToggleTrack: (isrc: string) => void;
-  onToggleSelectAll: (tracks: TrackMetadata[]) => void;
-  onDownloadTrack: (isrc: string, name: string, artists: string, albumName: string, spotifyId?: string, folderName?: string, durationMs?: number, position?: number, albumArtist?: string, releaseDate?: string, coverUrl?: string, spotifyTrackNumber?: number, spotifyDiscNumber?: number, spotifyTotalTracks?: number) => void;
-  onDownloadLyrics?: (spotifyId: string, name: string, artists: string, albumName: string, folderName?: string, isArtistDiscography?: boolean, position?: number, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
-  onDownloadCover?: (coverUrl: string, trackName: string, artistName: string, albumName: string, folderName?: string, isArtistDiscography?: boolean, position?: number, trackId?: string, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
-  onCheckAvailability?: (spotifyId: string) => void;
-  onDownloadAllLyrics?: () => void;
-  onDownloadAllCovers?: () => void;
-  onDownloadAll: () => void;
-  onDownloadSelected: () => void;
-  onStopDownload: () => void;
-  onOpenFolder: () => void;
-  onPageChange: (page: number) => void;
-  onArtistClick?: (artist: { id: string; name: string; external_urls: string }) => void;
-  onTrackClick?: (track: TrackMetadata) => void;
+    albumInfo: {
+        name: string;
+        artists: string;
+        images: string;
+        release_date: string;
+        total_tracks: number;
+        artist_id?: string;
+        artist_url?: string;
+    };
+    trackList: TrackMetadata[];
+    searchQuery: string;
+    sortBy: string;
+    selectedTracks: string[];
+    downloadedTracks: Set<string>;
+    failedTracks: Set<string>;
+    skippedTracks: Set<string>;
+    downloadingTrack: string | null;
+    isDownloading: boolean;
+    bulkDownloadType: "all" | "selected" | null;
+    downloadProgress: number;
+    currentDownloadInfo: {
+        name: string;
+        artists: string;
+    } | null;
+    currentPage: number;
+    itemsPerPage: number;
+    downloadedLyrics?: Set<string>;
+    failedLyrics?: Set<string>;
+    skippedLyrics?: Set<string>;
+    downloadingLyricsTrack?: string | null;
+    checkingAvailabilityTrack?: string | null;
+    availabilityMap?: Map<string, TrackAvailability>;
+    downloadedCovers?: Set<string>;
+    failedCovers?: Set<string>;
+    skippedCovers?: Set<string>;
+    downloadingCoverTrack?: string | null;
+    isBulkDownloadingCovers?: boolean;
+    isBulkDownloadingLyrics?: boolean;
+    onSearchChange: (value: string) => void;
+    onSortChange: (value: string) => void;
+    onToggleTrack: (id: string) => void;
+    onToggleSelectAll: (tracks: TrackMetadata[]) => void;
+    onDownloadTrack: (id: string, name: string, artists: string, albumName: string, spotifyId?: string, folderName?: string, durationMs?: number, position?: number, albumArtist?: string, releaseDate?: string, coverUrl?: string, spotifyTrackNumber?: number, spotifyDiscNumber?: number, spotifyTotalTracks?: number, spotifyTotalDiscs?: number, copyright?: string, publisher?: string) => void;
+    onDownloadLyrics?: (spotifyId: string, name: string, artists: string, albumName: string, folderName?: string, isArtistDiscography?: boolean, position?: number, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
+    onDownloadCover?: (coverUrl: string, trackName: string, artistName: string, albumName: string, folderName?: string, isArtistDiscography?: boolean, position?: number, trackId?: string, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
+    onCheckAvailability?: (spotifyId: string) => void;
+    onDownloadAllLyrics?: () => void;
+    onDownloadAllCovers?: () => void;
+    onDownloadAll: () => void;
+    onDownloadSelected: () => void;
+    onStopDownload: () => void;
+    onOpenFolder: () => void;
+    onPageChange: (page: number) => void;
+    onArtistClick?: (artist: {
+        id: string;
+        name: string;
+        external_urls: string;
+    }) => void;
+    onTrackClick?: (track: TrackMetadata) => void;
+    onBack?: () => void;
 }
-
-export function AlbumInfo({
-  albumInfo,
-  trackList,
-  searchQuery,
-  sortBy,
-  selectedTracks,
-  downloadedTracks,
-  failedTracks,
-  skippedTracks,
-  downloadingTrack,
-  isDownloading,
-  bulkDownloadType,
-  downloadProgress,
-  currentDownloadInfo,
-  currentPage,
-  itemsPerPage,
-  downloadedLyrics,
-  failedLyrics,
-  skippedLyrics,
-  downloadingLyricsTrack,
-  checkingAvailabilityTrack,
-  availabilityMap,
-  downloadedCovers,
-  failedCovers,
-  skippedCovers,
-  downloadingCoverTrack,
-  isBulkDownloadingCovers,
-  isBulkDownloadingLyrics,
-  onSearchChange,
-  onSortChange,
-  onToggleTrack,
-  onToggleSelectAll,
-  onDownloadTrack,
-  onDownloadLyrics,
-  onDownloadCover,
-  onCheckAvailability,
-  onDownloadAllLyrics,
-  onDownloadAllCovers,
-  onDownloadAll,
-  onDownloadSelected,
-  onStopDownload,
-  onOpenFolder,
-  onPageChange,
-  onArtistClick,
-  onTrackClick,
-}: AlbumInfoProps) {
-  return (
-    <div className="space-y-6">
-      <Card>
+export function AlbumInfo({ albumInfo, trackList, searchQuery, sortBy, selectedTracks, downloadedTracks, failedTracks, skippedTracks, downloadingTrack, isDownloading, bulkDownloadType, downloadProgress, currentDownloadInfo, currentPage, itemsPerPage, downloadedLyrics, failedLyrics, skippedLyrics, downloadingLyricsTrack, checkingAvailabilityTrack, availabilityMap, downloadedCovers, failedCovers, skippedCovers, downloadingCoverTrack, isBulkDownloadingCovers, isBulkDownloadingLyrics, onSearchChange, onSortChange, onToggleTrack, onToggleSelectAll, onDownloadTrack, onDownloadLyrics, onDownloadCover, onCheckAvailability, onDownloadAllLyrics, onDownloadAllCovers, onDownloadAll, onDownloadSelected, onStopDownload, onOpenFolder, onPageChange, onArtistClick, onTrackClick, onBack, }: AlbumInfoProps) {
+    return (<div className="space-y-6">
+      <Card className="relative">
+      {onBack && (<div className="absolute top-4 right-4 z-10">
+          <Button variant="ghost" size="icon" onClick={onBack}>
+              <XCircle className="h-5 w-5"/>
+          </Button>
+      </div>)}
         <CardContent className="px-6">
           <div className="flex gap-6 items-start">
-            {albumInfo.images && (
-              <img
-                src={albumInfo.images}
-                alt={albumInfo.name}
-                className="w-48 h-48 rounded-md shadow-lg object-cover"
-              />
-            )}
+            {albumInfo.images && (<img src={albumInfo.images} alt={albumInfo.name} className="w-48 h-48 rounded-md shadow-lg object-cover"/>)}
             <div className="flex-1 space-y-4">
               <div className="space-y-2">
                 <p className="text-sm font-medium">Album</p>
                 <h2 className="text-4xl font-bold">{albumInfo.name}</h2>
                 <div className="flex items-center gap-2 text-sm">
-                  {onArtistClick && albumInfo.artist_id && albumInfo.artist_url ? (
-                    <span
-                      className="font-medium cursor-pointer hover:underline"
-                      onClick={() =>
-                        onArtistClick({
-                          id: albumInfo.artist_id!,
-                          name: albumInfo.artists,
-                          external_urls: albumInfo.artist_url!,
-                        })
-                      }
-                    >
+                  {onArtistClick && albumInfo.artist_id && albumInfo.artist_url ? (<span className="font-medium cursor-pointer hover:underline" onClick={() => onArtistClick({
+                id: albumInfo.artist_id!,
+                name: albumInfo.artists,
+                external_urls: albumInfo.artist_url!,
+            })}>
                       {albumInfo.artists}
-                    </span>
-                  ) : (
-                    <span className="font-medium">{albumInfo.artists}</span>
-                  )}
+                    </span>) : (<span className="font-medium">{albumInfo.artists}</span>)}
                   <span>•</span>
                   <span>{albumInfo.release_date}</span>
                   <span>•</span>
                   <span>
-                    {albumInfo.total_tracks} {albumInfo.total_tracks === 1 ? "song" : "songs"}
+                    {albumInfo.total_tracks.toLocaleString()} {albumInfo.total_tracks === 1 ? "track" : "tracks"}
                   </span>
                 </div>
               </div>
               <div className="flex gap-2 flex-wrap">
                 <Button onClick={onDownloadAll} disabled={isDownloading}>
-                  {isDownloading && bulkDownloadType === "all" ? (
-                    <Spinner />
-                  ) : (
-                    <Download className="h-4 w-4" />
-                  )}
+                  {isDownloading && bulkDownloadType === "all" ? (<Spinner />) : (<Download className="h-4 w-4"/>)}
                   Download All
                 </Button>
-                {selectedTracks.length > 0 && (
-                  <Button
-                    onClick={onDownloadSelected}
-                    variant="secondary"
-                    disabled={isDownloading}
-                  >
-                    {isDownloading && bulkDownloadType === "selected" ? (
-                      <Spinner />
-                    ) : (
-                      <Download className="h-4 w-4" />
-                    )}
-                    Download Selected ({selectedTracks.length})
-                  </Button>
-                )}
-                {onDownloadAllLyrics && (
-                  <Tooltip>
+                {selectedTracks.length > 0 && (<Button onClick={onDownloadSelected} variant="secondary" disabled={isDownloading}>
+                    {isDownloading && bulkDownloadType === "selected" ? (<Spinner />) : (<Download className="h-4 w-4"/>)}
+                    Download Selected ({selectedTracks.length.toLocaleString()})
+                  </Button>)}
+                {onDownloadAllLyrics && (<Tooltip>
                     <TooltipTrigger asChild>
-                      <Button
-                        onClick={onDownloadAllLyrics}
-                        variant="outline"
-                        disabled={isBulkDownloadingLyrics}
-                      >
-                        {isBulkDownloadingLyrics ? <Spinner /> : <FileText className="h-4 w-4" />}
+                      <Button onClick={onDownloadAllLyrics} variant="outline" disabled={isBulkDownloadingLyrics}>
+                        {isBulkDownloadingLyrics ? <Spinner /> : <FileText className="h-4 w-4"/>}
                       </Button>
                     </TooltipTrigger>
                     <TooltipContent>
                       <p>Download All Lyrics</p>
                     </TooltipContent>
-                  </Tooltip>
-                )}
-                {onDownloadAllCovers && (
-                  <Tooltip>
+                  </Tooltip>)}
+                {onDownloadAllCovers && (<Tooltip>
                     <TooltipTrigger asChild>
-                      <Button
-                        onClick={onDownloadAllCovers}
-                        variant="outline"
-                        disabled={isBulkDownloadingCovers}
-                      >
-                        {isBulkDownloadingCovers ? <Spinner /> : <ImageDown className="h-4 w-4" />}
+                      <Button onClick={onDownloadAllCovers} variant="outline" disabled={isBulkDownloadingCovers}>
+                        {isBulkDownloadingCovers ? <Spinner /> : <ImageDown className="h-4 w-4"/>}
                       </Button>
                     </TooltipTrigger>
                     <TooltipContent>
                       <p>Download All Covers</p>
                     </TooltipContent>
-                  </Tooltip>
-                )}
-                {downloadedTracks.size > 0 && (
-                  <Button onClick={onOpenFolder} variant="outline">
-                    <FolderOpen className="h-4 w-4" />
+                  </Tooltip>)}
+                {downloadedTracks.size > 0 && (<Button onClick={onOpenFolder} variant="outline">
+                    <FolderOpen className="h-4 w-4"/>
                     Open Folder
-                  </Button>
-                )}
+                  </Button>)}
               </div>
-              {isDownloading && (
-                <DownloadProgress
-                  progress={downloadProgress}
-                  currentTrack={currentDownloadInfo}
-                  onStop={onStopDownload}
-                />
-              )}
+              {isDownloading && (<DownloadProgress progress={downloadProgress} currentTrack={currentDownloadInfo} onStop={onStopDownload}/>)}
             </div>
           </div>
         </CardContent>
       </Card>
       <div className="space-y-4">
-        <SearchAndSort
-          searchQuery={searchQuery}
-          sortBy={sortBy}
-          onSearchChange={onSearchChange}
-          onSortChange={onSortChange}
-        />
-        <TrackList
-          tracks={trackList}
-          searchQuery={searchQuery}
-          sortBy={sortBy}
-          selectedTracks={selectedTracks}
-          downloadedTracks={downloadedTracks}
-          failedTracks={failedTracks}
-          skippedTracks={skippedTracks}
-          downloadingTrack={downloadingTrack}
-          isDownloading={isDownloading}
-          currentPage={currentPage}
-          itemsPerPage={itemsPerPage}
-          showCheckboxes={true}
-          hideAlbumColumn={true}
-          folderName={albumInfo.name}
-          downloadedLyrics={downloadedLyrics}
-          failedLyrics={failedLyrics}
-          skippedLyrics={skippedLyrics}
-          downloadingLyricsTrack={downloadingLyricsTrack}
-          checkingAvailabilityTrack={checkingAvailabilityTrack}
-          availabilityMap={availabilityMap}
-          onToggleTrack={onToggleTrack}
-          onToggleSelectAll={onToggleSelectAll}
-          onDownloadTrack={onDownloadTrack}
-          onDownloadLyrics={onDownloadLyrics}
-          onDownloadCover={onDownloadCover}
-          downloadedCovers={downloadedCovers}
-          failedCovers={failedCovers}
-          skippedCovers={skippedCovers}
-          downloadingCoverTrack={downloadingCoverTrack}
-          onCheckAvailability={onCheckAvailability}
-          onPageChange={onPageChange}
-          onTrackClick={onTrackClick}
-        />
+        <SearchAndSort searchQuery={searchQuery} sortBy={sortBy} onSearchChange={onSearchChange} onSortChange={onSortChange}/>
+        <TrackList tracks={trackList} searchQuery={searchQuery} sortBy={sortBy} selectedTracks={selectedTracks} downloadedTracks={downloadedTracks} failedTracks={failedTracks} skippedTracks={skippedTracks} downloadingTrack={downloadingTrack} isDownloading={isDownloading} currentPage={currentPage} itemsPerPage={itemsPerPage} showCheckboxes={true} hideAlbumColumn={true} folderName={albumInfo.name} downloadedLyrics={downloadedLyrics} failedLyrics={failedLyrics} skippedLyrics={skippedLyrics} downloadingLyricsTrack={downloadingLyricsTrack} checkingAvailabilityTrack={checkingAvailabilityTrack} availabilityMap={availabilityMap} onToggleTrack={onToggleTrack} onToggleSelectAll={onToggleSelectAll} onDownloadTrack={onDownloadTrack} onDownloadLyrics={onDownloadLyrics} onDownloadCover={onDownloadCover} downloadedCovers={downloadedCovers} failedCovers={failedCovers} skippedCovers={skippedCovers} downloadingCoverTrack={downloadingCoverTrack} onCheckAvailability={onCheckAvailability} onPageChange={onPageChange} onArtistClick={onArtistClick} onTrackClick={onTrackClick}/>
       </div>
-    </div>
-  );
+    </div>);
 }

frontend/src/components/ArtistInfo.tsx

@@ -1,315 +1,557 @@
 import { Button } from "@/components/ui/button";
 import { Card, CardContent } from "@/components/ui/card";
-import { Download, FolderOpen, ImageDown, FileText } from "lucide-react";
+import { Download, FolderOpen, ImageDown, FileText, BadgeCheck, XCircle, Filter } from "lucide-react";
 import { Spinner } from "@/components/ui/spinner";
 import { Tooltip, TooltipContent, TooltipTrigger } from "@/components/ui/tooltip";
 import { SearchAndSort } from "./SearchAndSort";
 import { TrackList } from "./TrackList";
 import { DownloadProgress } from "./DownloadProgress";
 import type { TrackMetadata, TrackAvailability } from "@/types/api";
-
+import { downloadHeader, downloadGalleryImage, downloadAvatar } from "@/lib/api";
+import { getSettings } from "@/lib/settings";
+import { toastWithSound as toast } from "@/lib/toast-with-sound";
+import { useState, useMemo } from "react";
+import { Checkbox } from "@/components/ui/checkbox";
+import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogTrigger } from "@/components/ui/dialog";
+import { ScrollArea } from "@/components/ui/scroll-area";
 interface ArtistInfoProps {
-  artistInfo: {
-    name: string;
-    images: string;
-    followers: number;
-    genres: string[];
-  };
-  albumList: Array<{
-    id: string;
-    name: string;
-    images: string;
-    release_date: string;
-    album_type: string;
-    external_urls: string;
-  }>;
-  trackList: TrackMetadata[];
-  searchQuery: string;
-  sortBy: string;
-  selectedTracks: string[];
-  downloadedTracks: Set<string>;
-  failedTracks: Set<string>;
-  skippedTracks: Set<string>;
-  downloadingTrack: string | null;
-  isDownloading: boolean;
-  bulkDownloadType: "all" | "selected" | null;
-  downloadProgress: number;
-  currentDownloadInfo: { name: string; artists: string } | null;
-  currentPage: number;
-  itemsPerPage: number;
-  // Lyrics props
-  downloadedLyrics?: Set<string>;
-  failedLyrics?: Set<string>;
-  skippedLyrics?: Set<string>;
-  downloadingLyricsTrack?: string | null;
-  // Availability props
-  checkingAvailabilityTrack?: string | null;
-  availabilityMap?: Map<string, TrackAvailability>;
-  // Cover props
-  downloadedCovers?: Set<string>;
-  failedCovers?: Set<string>;
-  skippedCovers?: Set<string>;
-  downloadingCoverTrack?: string | null;
-  isBulkDownloadingCovers?: boolean;
-  isBulkDownloadingLyrics?: boolean;
-  onSearchChange: (value: string) => void;
-  onSortChange: (value: string) => void;
-  onToggleTrack: (isrc: string) => void;
-  onToggleSelectAll: (tracks: TrackMetadata[]) => void;
-  onDownloadTrack: (isrc: string, name: string, artists: string, albumName: string, spotifyId?: string, folderName?: string, durationMs?: number, position?: number, albumArtist?: string, releaseDate?: string, coverUrl?: string, spotifyTrackNumber?: number, spotifyDiscNumber?: number, spotifyTotalTracks?: number) => void;
-  onDownloadLyrics?: (spotifyId: string, name: string, artists: string, albumName: string, folderName?: string, isArtistDiscography?: boolean, position?: number, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
-  onDownloadCover?: (coverUrl: string, trackName: string, artistName: string, albumName: string, folderName?: string, isArtistDiscography?: boolean, position?: number, trackId?: string, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
-  onCheckAvailability?: (spotifyId: string) => void;
-  onDownloadAllLyrics?: () => void;
-  onDownloadAllCovers?: () => void;
-  onDownloadAll: () => void;
-  onDownloadSelected: () => void;
-  onStopDownload: () => void;
-  onOpenFolder: () => void;
-  onAlbumClick: (album: { id: string; name: string; external_urls: string }) => void;
-  onArtistClick: (artist: { id: string; name: string; external_urls: string }) => void;
-  onPageChange: (page: number) => void;
-  onTrackClick?: (track: TrackMetadata) => void;
+    artistInfo: {
+        name: string;
+        images: string;
+        header?: string;
+        gallery?: string[];
+        followers: number;
+        genres: string[];
+        biography?: string;
+        verified?: boolean;
+        listeners?: number;
+        rank?: number;
+    };
+    albumList: Array<{
+        id: string;
+        name: string;
+        images: string;
+        release_date: string;
+        album_type: string;
+        external_urls: string;
+        total_tracks?: number;
+    }>;
+    trackList: TrackMetadata[];
+    searchQuery: string;
+    sortBy: string;
+    selectedTracks: string[];
+    downloadedTracks: Set<string>;
+    failedTracks: Set<string>;
+    skippedTracks: Set<string>;
+    downloadingTrack: string | null;
+    isDownloading: boolean;
+    bulkDownloadType: "all" | "selected" | null;
+    downloadProgress: number;
+    currentDownloadInfo: {
+        name: string;
+        artists: string;
+    } | null;
+    currentPage: number;
+    itemsPerPage: number;
+    downloadedLyrics?: Set<string>;
+    failedLyrics?: Set<string>;
+    skippedLyrics?: Set<string>;
+    downloadingLyricsTrack?: string | null;
+    checkingAvailabilityTrack?: string | null;
+    availabilityMap?: Map<string, TrackAvailability>;
+    downloadedCovers?: Set<string>;
+    failedCovers?: Set<string>;
+    skippedCovers?: Set<string>;
+    downloadingCoverTrack?: string | null;
+    isBulkDownloadingCovers?: boolean;
+    isBulkDownloadingLyrics?: boolean;
+    onSearchChange: (value: string) => void;
+    onSortChange: (value: string) => void;
+    onToggleTrack: (id: string) => void;
+    onToggleSelectAll: (tracks: TrackMetadata[]) => void;
+    onDownloadTrack: (id: string, name: string, artists: string, albumName: string, spotifyId?: string, folderName?: string, durationMs?: number, position?: number, albumArtist?: string, releaseDate?: string, coverUrl?: string, spotifyTrackNumber?: number, spotifyDiscNumber?: number, spotifyTotalTracks?: number, spotifyTotalDiscs?: number, copyright?: string, publisher?: string) => void;
+    onDownloadLyrics?: (spotifyId: string, name: string, artists: string, albumName: string, folderName?: string, isArtistDiscography?: boolean, position?: number, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
+    onDownloadCover?: (coverUrl: string, trackName: string, artistName: string, albumName: string, folderName?: string, isArtistDiscography?: boolean, position?: number, trackId?: string, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
+    onCheckAvailability?: (spotifyId: string) => void;
+    onDownloadAllLyrics?: () => void;
+    onDownloadAllCovers?: () => void;
+    onDownloadAll: () => void;
+    onDownloadSelected: () => void;
+    onStopDownload: () => void;
+    onOpenFolder: () => void;
+    onAlbumClick: (album: {
+        id: string;
+        name: string;
+        external_urls: string;
+    }) => void;
+    onArtistClick: (artist: {
+        id: string;
+        name: string;
+        external_urls: string;
+    }) => void;
+    onPageChange: (page: number) => void;
+    onTrackClick?: (track: TrackMetadata) => void;
+    onBack?: () => void;
 }
-
-export function ArtistInfo({
-  artistInfo,
-  albumList,
-  trackList,
-  searchQuery,
-  sortBy,
-  selectedTracks,
-  downloadedTracks,
-  failedTracks,
-  skippedTracks,
-  downloadingTrack,
-  isDownloading,
-  bulkDownloadType,
-  downloadProgress,
-  currentDownloadInfo,
-  currentPage,
-  itemsPerPage,
-  downloadedLyrics,
-  failedLyrics,
-  skippedLyrics,
-  downloadingLyricsTrack,
-  checkingAvailabilityTrack,
-  availabilityMap,
-  downloadedCovers,
-  failedCovers,
-  skippedCovers,
-  downloadingCoverTrack,
-  isBulkDownloadingCovers,
-  isBulkDownloadingLyrics,
-  onSearchChange,
-  onSortChange,
-  onToggleTrack,
-  onToggleSelectAll,
-  onDownloadTrack,
-  onDownloadLyrics,
-  onDownloadCover,
-  onCheckAvailability,
-  onDownloadAllLyrics,
-  onDownloadAllCovers,
-  onDownloadAll,
-  onDownloadSelected,
-  onStopDownload,
-  onOpenFolder,
-  onAlbumClick,
-  onArtistClick,
-  onPageChange,
-  onTrackClick,
-}: ArtistInfoProps) {
-  return (
-    <div className="space-y-6">
-      <Card>
-        <CardContent className="px-6">
-          <div className="flex gap-6 items-start">
-            {artistInfo.images && (
-              <img
-                src={artistInfo.images}
-                alt={artistInfo.name}
-                className="w-48 h-48 rounded-full shadow-lg object-cover"
-              />
-            )}
-            <div className="flex-1 space-y-2">
-              <p className="text-sm font-medium">Artist</p>
-              <h2 className="text-4xl font-bold">{artistInfo.name}</h2>
-              <div className="flex items-center gap-2 text-sm flex-wrap">
-                <span>{artistInfo.followers.toLocaleString()} followers</span>
-                <span>•</span>
-                <span>{albumList.length} albums</span>
-                <span>•</span>
-                <span>{trackList.length} tracks</span>
-                {artistInfo.genres.length > 0 && (
-                  <>
-                    <span>•</span>
-                    <span>{artistInfo.genres.join(", ")}</span>
-                  </>
-                )}
+export function ArtistInfo({ artistInfo, albumList, trackList, searchQuery, sortBy, selectedTracks, downloadedTracks, failedTracks, skippedTracks, downloadingTrack, isDownloading, bulkDownloadType, downloadProgress, currentDownloadInfo, currentPage, itemsPerPage, downloadedLyrics, failedLyrics, skippedLyrics, downloadingLyricsTrack, checkingAvailabilityTrack, availabilityMap, downloadedCovers, failedCovers, skippedCovers, downloadingCoverTrack, isBulkDownloadingCovers, isBulkDownloadingLyrics, onSearchChange, onSortChange, onToggleTrack, onToggleSelectAll, onDownloadTrack, onDownloadLyrics, onDownloadCover, onCheckAvailability, onDownloadAllLyrics, onDownloadAllCovers, onDownloadAll, onDownloadSelected, onStopDownload, onOpenFolder, onAlbumClick, onArtistClick, onPageChange, onTrackClick, onBack, }: ArtistInfoProps) {
+    const [downloadingHeader, setDownloadingHeader] = useState(false);
+    const [downloadingAvatar, setDownloadingAvatar] = useState(false);
+    const [downloadingGalleryIndex, setDownloadingGalleryIndex] = useState<number | null>(null);
+    const [downloadingAllGallery, setDownloadingAllGallery] = useState(false);
+    const [activeTab, setActiveTab] = useState<"albums" | "tracks" | "gallery">("albums");
+    const filteredAlbumGroups = useMemo(() => {
+        const albumTypeMap = new Map(albumList.map(a => [a.name, a.album_type]));
+        const albumGroups = trackList.reduce((acc, track) => {
+            if (!track.album_name)
+                return acc;
+            if (!acc[track.album_name]) {
+                acc[track.album_name] = {
+                    count: 0,
+                    tracks: [],
+                    type: albumTypeMap.get(track.album_name) || "unknown"
+                };
+            }
+            acc[track.album_name].count++;
+            acc[track.album_name].tracks.push(track);
+            return acc;
+        }, {} as Record<string, {
+            count: number;
+            tracks: TrackMetadata[];
+            type: string;
+        }>);
+        return Object.entries(albumGroups).sort((a, b) => {
+            const dateA = a[1].tracks[0]?.release_date || "";
+            const dateB = b[1].tracks[0]?.release_date || "";
+            return dateB.localeCompare(dateA);
+        });
+    }, [trackList, albumList]);
+    const handleDownloadHeader = async () => {
+        if (!artistInfo.header)
+            return;
+        setDownloadingHeader(true);
+        try {
+            const settings = getSettings();
+            const response = await downloadHeader({
+                header_url: artistInfo.header,
+                artist_name: artistInfo.name,
+                output_dir: settings.downloadPath,
+            });
+            if (response.success) {
+                if (response.already_exists) {
+                    toast.info("Header already exists");
+                }
+                else {
+                    toast.success("Header downloaded successfully");
+                }
+            }
+            else {
+                toast.error(response.error || "Failed to download header");
+            }
+        }
+        catch (error) {
+            toast.error(`Error downloading header: ${error}`);
+        }
+        finally {
+            setDownloadingHeader(false);
+        }
+    };
+    const handleDownloadAvatar = async () => {
+        if (!artistInfo.images)
+            return;
+        setDownloadingAvatar(true);
+        try {
+            const settings = getSettings();
+            const response = await downloadAvatar({
+                avatar_url: artistInfo.images,
+                artist_name: artistInfo.name,
+                output_dir: settings.downloadPath,
+            });
+            if (response.success) {
+                if (response.already_exists) {
+                    toast.info("Avatar already exists");
+                }
+                else {
+                    toast.success("Avatar downloaded successfully");
+                }
+            }
+            else {
+                toast.error(response.error || "Failed to download avatar");
+            }
+        }
+        catch (error) {
+            toast.error(`Error downloading avatar: ${error}`);
+        }
+        finally {
+            setDownloadingAvatar(false);
+        }
+    };
+    const handleDownloadGalleryImage = async (imageUrl: string, index: number) => {
+        setDownloadingGalleryIndex(index);
+        try {
+            const settings = getSettings();
+            const response = await downloadGalleryImage({
+                image_url: imageUrl,
+                artist_name: artistInfo.name,
+                image_index: index,
+                output_dir: settings.downloadPath,
+            });
+            if (response.success) {
+                if (response.already_exists) {
+                    toast.info(`Gallery image ${index + 1} already exists`);
+                }
+                else {
+                    toast.success(`Gallery image ${index + 1} downloaded successfully`);
+                }
+            }
+            else {
+                toast.error(response.error || `Failed to download gallery image ${index + 1}`);
+            }
+        }
+        catch (error) {
+            toast.error(`Error downloading gallery image ${index + 1}: ${error}`);
+        }
+        finally {
+            setDownloadingGalleryIndex(null);
+        }
+    };
+    const handleDownloadAllGallery = async () => {
+        if (!artistInfo.gallery || artistInfo.gallery.length === 0)
+            return;
+        setDownloadingAllGallery(true);
+        try {
+            const settings = getSettings();
+            let successCount = 0;
+            let existsCount = 0;
+            let failCount = 0;
+            for (let index = 0; index < artistInfo.gallery.length; index++) {
+                const imageUrl = artistInfo.gallery[index];
+                try {
+                    const response = await downloadGalleryImage({
+                        image_url: imageUrl,
+                        artist_name: artistInfo.name,
+                        image_index: index,
+                        output_dir: settings.downloadPath,
+                    });
+                    if (response.success) {
+                        if (response.already_exists) {
+                            existsCount++;
+                        }
+                        else {
+                            successCount++;
+                        }
+                    }
+                    else {
+                        failCount++;
+                    }
+                }
+                catch (error) {
+                    failCount++;
+                }
+            }
+            if (failCount === 0) {
+                if (existsCount > 0 && successCount > 0) {
+                    toast.success(`${successCount} images downloaded, ${existsCount} already existed`);
+                }
+                else if (existsCount > 0) {
+                    toast.info(`All ${existsCount} images already exist`);
+                }
+                else {
+                    toast.success(`All ${successCount} gallery images downloaded successfully`);
+                }
+            }
+            else {
+                toast.error(`${failCount} images failed to download`);
+            }
+        }
+        catch (error) {
+            toast.error(`Error downloading gallery images: ${error}`);
+        }
+        finally {
+            setDownloadingAllGallery(false);
+        }
+    };
+    const hasGallery = artistInfo.gallery && artistInfo.gallery.length > 0;
+    return (<div className="space-y-6">
+      <Card className="overflow-hidden p-0 relative">
+        {artistInfo.header ? (<>
+            <div className="relative w-full h-64 bg-cover bg-center">
+              <div className="absolute inset-0 bg-cover bg-center" style={{ backgroundImage: `url(${artistInfo.header})` }}/>
+              <div className="absolute inset-0 bg-gradient-to-t from-black via-black/50 to-transparent"/>
+              {onBack && (<div className="absolute top-4 right-4 z-10">
+                  <Button variant="ghost" size="icon" onClick={onBack} className="text-white hover:bg-white/20 hover:text-white">
+                      <XCircle className="h-5 w-5"/>
+                  </Button>
+              </div>)}
+              <div className="absolute bottom-4 right-4 z-10">
+                <Tooltip>
+                  <TooltipTrigger asChild>
+                    <Button onClick={handleDownloadHeader} size="sm" variant="secondary" disabled={downloadingHeader} className="bg-white/10 hover:bg-white/20 text-white border-white/20">
+                      {downloadingHeader ? (<Spinner className="h-4 w-4"/>) : (<ImageDown className="h-4 w-4"/>)}
+                    </Button>
+                  </TooltipTrigger>
+                  <TooltipContent>
+                    <p>Download Header</p>
+                  </TooltipContent>
+                </Tooltip>
+              </div>
+              <div className="relative px-6 pt-6 pb-20">
+                <div className="flex gap-6 items-start">
+                  {artistInfo.images && (<div className="relative group">
+                      <img src={artistInfo.images} alt={artistInfo.name} className="w-48 h-48 rounded-full shadow-lg object-cover border-4 border-white"/>
+                      <div className="absolute inset-0 bg-black/0 group-hover:bg-black/50 transition-colors rounded-full flex items-center justify-center">
+                        <Tooltip>
+                          <TooltipTrigger asChild>
+                            <Button onClick={handleDownloadAvatar} size="sm" variant="secondary" disabled={downloadingAvatar} className="opacity-0 group-hover:opacity-100 transition-opacity bg-white/10 hover:bg-white/20 text-white border-white/20">
+                              {downloadingAvatar ? (<Spinner className="h-4 w-4"/>) : (<ImageDown className="h-4 w-4"/>)}
+                            </Button>
+                          </TooltipTrigger>
+                          <TooltipContent>
+                            <p>Download Avatar</p>
+                          </TooltipContent>
+                        </Tooltip>
+                      </div>
+                    </div>)}
+                  <div className="flex-1 space-y-2">
+                    <p className="text-sm font-medium text-white/80">Artist</p>
+                    <div className="flex items-center gap-2">
+                      <h2 className="text-4xl font-bold text-white">{artistInfo.name}</h2>
+                      {artistInfo.verified && (<BadgeCheck className="h-6 w-6 text-white fill-blue-400 shrink-0"/>)}
+                    </div>
+                    {artistInfo.biography && (<p className="text-sm text-white/90">{artistInfo.biography}</p>)}
+                    <div className="flex items-center gap-2 text-sm flex-wrap text-white/90">
+                      {artistInfo.rank && (<>
+                          <span>#{artistInfo.rank} rank</span>
+                          <span>•</span>
+                        </>)}
+                      <span>{artistInfo.followers.toLocaleString()} {artistInfo.followers === 1 ? "follower" : "followers"}</span>
+                      {artistInfo.listeners && (<>
+                          <span>•</span>
+                          <span>{artistInfo.listeners.toLocaleString()} {artistInfo.listeners === 1 ? "listener" : "listeners"}</span>
+                        </>)}
+                    </div>
+                    <div className="flex items-center gap-2 text-sm flex-wrap text-white/90">
+                      <span>{albumList.length} {albumList.length === 1 ? "album" : "albums"}</span>
+                      <span>•</span>
+                      <span>{trackList.length} {trackList.length === 1 ? "track" : "tracks"}</span>
+                      {artistInfo.genres.length > 0 && (<>
+                          <span>•</span>
+                          <span>{artistInfo.genres.join(", ")}</span>
+                        </>)}
+                    </div>
+                  </div>
+                </div>
               </div>
             </div>
-          </div>
-        </CardContent>
+          </>) : (<CardContent className="px-6 py-6">
+            {onBack && (<div className="absolute top-4 right-4 z-10">
+                <Button variant="ghost" size="icon" onClick={onBack}>
+                    <XCircle className="h-5 w-5"/>
+                </Button>
+            </div>)}
+            <div className="flex gap-6 items-start">
+              {artistInfo.images && (<div className="relative group">
+                  <img src={artistInfo.images} alt={artistInfo.name} className="w-48 h-48 rounded-full shadow-lg object-cover border-4 border-white"/>
+                  <div className="absolute inset-0 bg-black/0 group-hover:bg-black/50 transition-colors rounded-full flex items-center justify-center">
+                    <Tooltip>
+                      <TooltipTrigger asChild>
+                        <Button onClick={handleDownloadAvatar} size="sm" variant="secondary" disabled={downloadingAvatar} className="opacity-0 group-hover:opacity-100 transition-opacity bg-white/10 hover:bg-white/20 text-white border-white/20">
+                          {downloadingAvatar ? (<Spinner className="h-4 w-4"/>) : (<ImageDown className="h-4 w-4"/>)}
+                        </Button>
+                      </TooltipTrigger>
+                      <TooltipContent>
+                        <p>Download Avatar</p>
+                      </TooltipContent>
+                    </Tooltip>
+                  </div>
+                </div>)}
+              <div className="flex-1 space-y-2">
+                <p className="text-sm font-medium">Artist</p>
+                <div className="flex items-center gap-2">
+                  <h2 className="text-4xl font-bold">{artistInfo.name}</h2>
+                  {artistInfo.verified && (<BadgeCheck className="h-6 w-6 text-white fill-blue-500 shrink-0"/>)}
+                </div>
+                {artistInfo.biography && (<p className="text-sm text-muted-foreground">{artistInfo.biography}</p>)}
+                <div className="flex items-center gap-2 text-sm flex-wrap">
+                  {artistInfo.rank && (<>
+                      <span>#{artistInfo.rank} rank</span>
+                      <span>•</span>
+                    </>)}
+                  <span>{artistInfo.followers.toLocaleString()} {artistInfo.followers === 1 ? "follower" : "followers"}</span>
+                  {artistInfo.listeners && (<>
+                      <span>•</span>
+                      <span>{artistInfo.listeners.toLocaleString()} {artistInfo.listeners === 1 ? "listener" : "listeners"}</span>
+                    </>)}
+                </div>
+                <div className="flex items-center gap-2 text-sm flex-wrap">
+                  <span>{albumList.length} {albumList.length === 1 ? "album" : "albums"}</span>
+                  <span>•</span>
+                  <span>{trackList.length} {trackList.length === 1 ? "track" : "tracks"}</span>
+                  {artistInfo.genres.length > 0 && (<>
+                      <span>•</span>
+                      <span>{artistInfo.genres.join(", ")}</span>
+                    </>)}
+                </div>
+              </div>
+            </div>
+          </CardContent>)}
       </Card>
 
-      {albumList.length > 0 && (
-        <div className="space-y-4">
-          <h3 className="text-2xl font-bold">Discography</h3>
+      <div className="border-b">
+        <div className="flex gap-6">
+            <button onClick={() => setActiveTab("albums")} className={`pb-3 text-sm font-medium transition-colors border-b-2 -mb-px hover:text-foreground ${activeTab === "albums" ? "border-primary text-foreground" : "border-transparent text-muted-foreground"}`}>
+                Albums
+            </button>
+            <button onClick={() => setActiveTab("tracks")} className={`pb-3 text-sm font-medium transition-colors border-b-2 -mb-px hover:text-foreground ${activeTab === "tracks" ? "border-primary text-foreground" : "border-transparent text-muted-foreground"}`}>
+                All Tracks
+            </button>
+            {hasGallery && (<button onClick={() => setActiveTab("gallery")} className={`pb-3 text-sm font-medium transition-colors border-b-2 -mb-px hover:text-foreground ${activeTab === "gallery" ? "border-primary text-foreground" : "border-transparent text-muted-foreground"}`}>
+                    Gallery
+                </button>)}
+        </div>
+      </div>
+
+      {activeTab === "gallery" && hasGallery && (<div className="space-y-4">
+          <div className="flex items-center justify-between">
+            <h3 className="text-2xl font-bold">Gallery ({artistInfo.gallery!.length})</h3>
+            <Tooltip>
+              <TooltipTrigger asChild>
+                <Button onClick={handleDownloadAllGallery} size="sm" variant="outline" disabled={downloadingAllGallery}>
+                  {downloadingAllGallery ? <Spinner className="h-4 w-4"/> : <ImageDown className="h-4 w-4"/>}
+                </Button>
+              </TooltipTrigger>
+              <TooltipContent>
+                <p>Download All Gallery</p>
+              </TooltipContent>
+            </Tooltip>
+          </div>
           <div className="grid grid-cols-2 md:grid-cols-3 lg:grid-cols-4 xl:grid-cols-5 gap-4">
-            {albumList.map((album) => (
-              <div
-                key={album.id}
-                className="group cursor-pointer"
-                onClick={() =>
-                  onAlbumClick({
+            {artistInfo.gallery!.map((imageUrl, index) => (<div key={index} className="relative group">
+                <div className="relative aspect-square rounded-md overflow-hidden shadow-md">
+                  <img src={imageUrl} alt={`${artistInfo.name} gallery ${index + 1}`} className="w-full h-full object-cover"/>
+                  <div className="absolute inset-0 bg-black/0 group-hover:bg-black/50 transition-colors flex items-center justify-center">
+                    <Tooltip>
+                      <TooltipTrigger asChild>
+                        <Button onClick={() => handleDownloadGalleryImage(imageUrl, index)} size="sm" variant="secondary" disabled={downloadingGalleryIndex === index} className="opacity-0 group-hover:opacity-100 transition-opacity bg-white/10 hover:bg-white/20 text-white border-white/20">
+                          {downloadingGalleryIndex === index ? (<Spinner className="h-4 w-4"/>) : (<ImageDown className="h-4 w-4"/>)}
+                        </Button>
+                      </TooltipTrigger>
+                      <TooltipContent>
+                        <p>Download Image {index + 1}</p>
+                      </TooltipContent>
+                    </Tooltip>
+                  </div>
+                </div>
+              </div>))}
+          </div>
+        </div>)}
+
+      {activeTab === "albums" && albumList.length > 0 && (<div className="space-y-4">
+          <h3 className="text-2xl font-bold">Discography</h3>
+          <div className="grid grid-cols-2 sm:grid-cols-3 md:grid-cols-4 lg:grid-cols-5 gap-4">
+            {albumList.map((album) => (<div key={album.id} className="group cursor-pointer" onClick={() => onAlbumClick({
                     id: album.id,
                     name: album.name,
                     external_urls: album.external_urls,
-                  })
-                }
-              >
-                <div className="relative mb-4">
-                  {album.images && (
-                    <img
-                      src={album.images}
-                      alt={album.name}
-                      className="w-full aspect-square object-cover rounded-md shadow-md transition-shadow group-hover:shadow-xl"
-                    />
-                  )}
+                })}>
+                <div className="relative mb-2">
+                  {album.images && (<img src={album.images} alt={album.name} className="w-full aspect-square object-cover rounded-md shadow-md transition-shadow group-hover:shadow-xl"/>)}
+                  <div className="absolute bottom-2 right-2">
+                    <span className="text-[10px] uppercase font-bold px-1.5 py-0.5 rounded bg-black/60 text-white backdrop-blur-[2px]">
+                        {album.album_type}
+                    </span>
+                  </div>
                 </div>
-                <h4 className="font-semibold truncate">{album.name}</h4>
-                <p className="text-sm text-muted-foreground">
-                  {album.release_date?.split("-")[0]} • {album.album_type}
-                </p>
-              </div>
-            ))}
+                <h4 className="font-semibold truncate text-sm">{album.name}</h4>
+                <div className="flex items-center gap-2 text-xs text-muted-foreground mt-1">
+                    <span>{album.release_date?.split("-")[0]}</span>
+                    {album.total_tracks && (<>
+                            <span>•</span>
+                            <span>{album.total_tracks} {album.total_tracks === 1 ? "track" : "tracks"}</span>
+                        </>)}
+                </div>
+              </div>))}
           </div>
-        </div>
-      )}
+        </div>)}
 
-      {trackList.length > 0 && (
-        <div className="space-y-4">
+      {activeTab === "tracks" && trackList.length > 0 && (<div className="space-y-4">
           <div className="flex items-center justify-between flex-wrap gap-2">
-            <h3 className="text-2xl font-bold">Popular Tracks</h3>
+            <h3 className="text-2xl font-bold">All Tracks</h3>
             <div className="flex gap-2 flex-wrap">
+              <Dialog>
+                  <DialogTrigger asChild>
+                      <Button variant="outline" size="sm">
+                          <Filter className="h-4 w-4"/>
+                          Filter Albums
+                      </Button>
+                  </DialogTrigger>
+                  <DialogContent className="sm:max-w-[500px] h-[80vh] flex flex-col">
+                      <DialogHeader>
+                          <DialogTitle>Select Albums</DialogTitle>
+                      </DialogHeader>
+                      <ScrollArea className="flex-1 pr-4">
+                          <div className="space-y-4">
+                              {filteredAlbumGroups.map(([albumName, data]) => {
+                const tracksWithId = data.tracks.filter(t => t.spotify_id);
+                const isSelected = tracksWithId.length > 0 && tracksWithId.every(t => selectedTracks.includes(t.spotify_id!));
+                return (<div key={albumName} className="flex items-start space-x-3 p-2 hover:bg-muted/50 rounded-md transition-colors">
+                                          <Checkbox id={`album-select-${albumName}`} checked={isSelected} onCheckedChange={() => onToggleSelectAll(data.tracks)} className="mt-1"/>
+                                          <div className="grid gap-1.5 leading-none flex-1">
+                                              <label htmlFor={`album-select-${albumName}`} className="text-sm font-medium leading-none peer-disabled:cursor-not-allowed peer-disabled:opacity-70 cursor-pointer">
+                                                  {albumName}
+                                              </label>
+                                              <div className="flex items-center gap-2 text-xs text-muted-foreground">
+                                                  <span className="capitalize bg-muted px-1.5 py-0.5 rounded text-[10px] font-semibold border">
+                                                      {data.type}
+                                                  </span>
+                                                  <span>•</span>
+                                                  <span>{data.count} tracks</span>
+                                                  <span>•</span>
+                                                  <span>{data.tracks[0]?.release_date?.split('-')[0] || 'Unknown Year'}</span>
+                                              </div>
+                                          </div>
+                                      </div>);
+            })}
+                          </div>
+                      </ScrollArea>
+                  </DialogContent>
+              </Dialog>
               <Button onClick={onDownloadAll} size="sm" disabled={isDownloading}>
-                {isDownloading && bulkDownloadType === "all" ? (
-                  <Spinner />
-                ) : (
-                  <Download className="h-4 w-4" />
-                )}
+                {isDownloading && bulkDownloadType === "all" ? (<Spinner />) : (<Download className="h-4 w-4"/>)}
                 Download All
               </Button>
-              {selectedTracks.length > 0 && (
-                <Button
-                  onClick={onDownloadSelected}
-                  size="sm"
-                  variant="secondary"
-                  disabled={isDownloading}
-                >
-                  {isDownloading && bulkDownloadType === "selected" ? (
-                    <Spinner />
-                  ) : (
-                    <Download className="h-4 w-4" />
-                  )}
-                  Download Selected ({selectedTracks.length})
-                </Button>
-              )}
-              {onDownloadAllLyrics && (
-                <Tooltip>
+              {selectedTracks.length > 0 && (<Button onClick={onDownloadSelected} size="sm" variant="secondary" disabled={isDownloading}>
+                  {isDownloading && bulkDownloadType === "selected" ? (<Spinner />) : (<Download className="h-4 w-4"/>)}
+                  Download Selected ({selectedTracks.length.toLocaleString()})
+                </Button>)}
+              {onDownloadAllLyrics && (<Tooltip>
                   <TooltipTrigger asChild>
-                    <Button
-                      onClick={onDownloadAllLyrics}
-                      size="sm"
-                      variant="outline"
-                      disabled={isBulkDownloadingLyrics}
-                    >
-                      {isBulkDownloadingLyrics ? <Spinner /> : <FileText className="h-4 w-4" />}
+                    <Button onClick={onDownloadAllLyrics} size="sm" variant="outline" disabled={isBulkDownloadingLyrics}>
+                      {isBulkDownloadingLyrics ? <Spinner /> : <FileText className="h-4 w-4"/>}
                     </Button>
                   </TooltipTrigger>
                   <TooltipContent>
                     <p>Download All Lyrics</p>
                   </TooltipContent>
-                </Tooltip>
-              )}
-              {onDownloadAllCovers && (
-                <Tooltip>
+                </Tooltip>)}
+              {onDownloadAllCovers && (<Tooltip>
                   <TooltipTrigger asChild>
-                    <Button
-                      onClick={onDownloadAllCovers}
-                      size="sm"
-                      variant="outline"
-                      disabled={isBulkDownloadingCovers}
-                    >
-                      {isBulkDownloadingCovers ? <Spinner /> : <ImageDown className="h-4 w-4" />}
+                    <Button onClick={onDownloadAllCovers} size="sm" variant="outline" disabled={isBulkDownloadingCovers}>
+                      {isBulkDownloadingCovers ? <Spinner /> : <ImageDown className="h-4 w-4"/>}
                     </Button>
                   </TooltipTrigger>
                   <TooltipContent>
                     <p>Download All Covers</p>
                   </TooltipContent>
-                </Tooltip>
-              )}
-              {downloadedTracks.size > 0 && (
-                <Button onClick={onOpenFolder} size="sm" variant="outline">
-                  <FolderOpen className="h-4 w-4" />
+                </Tooltip>)}
+              {downloadedTracks.size > 0 && (<Button onClick={onOpenFolder} size="sm" variant="outline">
+                  <FolderOpen className="h-4 w-4"/>
                   Open Folder
-                </Button>
-              )}
+                </Button>)}
             </div>
           </div>
-          {isDownloading && (
-            <DownloadProgress
-              progress={downloadProgress}
-              currentTrack={currentDownloadInfo}
-              onStop={onStopDownload}
-            />
-          )}
-          <SearchAndSort
-            searchQuery={searchQuery}
-            sortBy={sortBy}
-            onSearchChange={onSearchChange}
-            onSortChange={onSortChange}
-          />
-          <TrackList
-            tracks={trackList}
-            searchQuery={searchQuery}
-            sortBy={sortBy}
-            selectedTracks={selectedTracks}
-            downloadedTracks={downloadedTracks}
-            failedTracks={failedTracks}
-            skippedTracks={skippedTracks}
-            downloadingTrack={downloadingTrack}
-            isDownloading={isDownloading}
-            currentPage={currentPage}
-            itemsPerPage={itemsPerPage}
-            showCheckboxes={true}
-            hideAlbumColumn={false}
-            folderName={artistInfo.name}
-            isArtistDiscography={true}
-            downloadedLyrics={downloadedLyrics}
-            failedLyrics={failedLyrics}
-            skippedLyrics={skippedLyrics}
-            downloadingLyricsTrack={downloadingLyricsTrack}
-            checkingAvailabilityTrack={checkingAvailabilityTrack}
-            availabilityMap={availabilityMap}
-            onToggleTrack={onToggleTrack}
-            onToggleSelectAll={onToggleSelectAll}
-            onDownloadTrack={onDownloadTrack}
-            onDownloadLyrics={onDownloadLyrics}
-            onDownloadCover={onDownloadCover}
-            downloadedCovers={downloadedCovers}
-            failedCovers={failedCovers}
-            skippedCovers={skippedCovers}
-            downloadingCoverTrack={downloadingCoverTrack}
-            onCheckAvailability={onCheckAvailability}
-            onPageChange={onPageChange}
-            onAlbumClick={onAlbumClick}
-            onArtistClick={onArtistClick}
-            onTrackClick={onTrackClick}
-          />
-        </div>
-      )}
-    </div>
-  );
+          {isDownloading && (<DownloadProgress progress={downloadProgress} currentTrack={currentDownloadInfo} onStop={onStopDownload}/>)}
+          <SearchAndSort searchQuery={searchQuery} sortBy={sortBy} onSearchChange={onSearchChange} onSortChange={onSortChange}/>
+          <TrackList tracks={trackList} searchQuery={searchQuery} sortBy={sortBy} selectedTracks={selectedTracks} downloadedTracks={downloadedTracks} failedTracks={failedTracks} skippedTracks={skippedTracks} downloadingTrack={downloadingTrack} isDownloading={isDownloading} currentPage={currentPage} itemsPerPage={itemsPerPage} showCheckboxes={true} hideAlbumColumn={false} folderName={artistInfo.name} isArtistDiscography={true} downloadedLyrics={downloadedLyrics} failedLyrics={failedLyrics} skippedLyrics={skippedLyrics} downloadingLyricsTrack={downloadingLyricsTrack} checkingAvailabilityTrack={checkingAvailabilityTrack} availabilityMap={availabilityMap} onToggleTrack={onToggleTrack} onToggleSelectAll={onToggleSelectAll} onDownloadTrack={onDownloadTrack} onDownloadLyrics={onDownloadLyrics} onDownloadCover={onDownloadCover} downloadedCovers={downloadedCovers} failedCovers={failedCovers} skippedCovers={skippedCovers} downloadingCoverTrack={downloadingCoverTrack} onCheckAvailability={onCheckAvailability} onPageChange={onPageChange} onAlbumClick={onAlbumClick} onArtistClick={onArtistClick} onTrackClick={onTrackClick}/>
+        </div>)}
+    </div>);
 }

frontend/src/components/AudioAnalysis.tsx

@@ -1,144 +1,109 @@
 import { Card, CardContent, CardHeader } from "@/components/ui/card";
 import { Spinner } from "@/components/ui/spinner";
 import { Button } from "@/components/ui/button";
-import {
-  Activity,
-  Waves,
-  Radio,
-  TrendingUp,
-  FileAudio,
-  Clock,
-  Gauge,
-  HardDrive
-} from "lucide-react";
+import { Activity, Waves, Radio, TrendingUp, FileAudio, Clock, Gauge, HardDrive } from "lucide-react";
 import type { AnalysisResult } from "@/types/api";
-
 interface AudioAnalysisProps {
-  result: AnalysisResult | null;
-  analyzing: boolean;
-  onAnalyze?: () => void;
-  showAnalyzeButton?: boolean;
-  filePath?: string;
+    result: AnalysisResult | null;
+    analyzing: boolean;
+    onAnalyze?: () => void;
+    showAnalyzeButton?: boolean;
+    filePath?: string;
 }
-
-export function AudioAnalysis({
-  result,
-  analyzing,
-  onAnalyze,
-  showAnalyzeButton = true,
-  filePath
-}: AudioAnalysisProps) {
-  if (analyzing) {
-    return (
-      <Card>
+export function AudioAnalysis({ result, analyzing, onAnalyze, showAnalyzeButton = true, filePath }: AudioAnalysisProps) {
+    if (analyzing) {
+        return (<Card>
         <CardContent className="px-6">
           <div className="flex items-center justify-center py-8 gap-3">
             <Spinner />
             <span className="text-muted-foreground">Analyzing audio quality...</span>
           </div>
         </CardContent>
-      </Card>
-    );
-  }
-
-  if (!result && showAnalyzeButton) {
-    return (
-      <Card>
+      </Card>);
+    }
+    if (!result && showAnalyzeButton) {
+        return (<Card>
         <CardContent className="px-6">
           <div className="flex flex-col items-center justify-center py-8 gap-4">
-            <Activity className="h-12 w-12 text-primary" />
+            <Activity className="h-12 w-12 text-primary"/>
             <div className="text-center space-y-2">
               <p className="font-medium">Audio Quality Analysis</p>
               <p className="text-sm text-muted-foreground">
                 Verify the true lossless quality of downloaded files
               </p>
             </div>
-            {onAnalyze && (
-              <Button onClick={onAnalyze}>
-                <Activity className="h-4 w-4" />
+            {onAnalyze && (<Button onClick={onAnalyze}>
+                <Activity className="h-4 w-4"/>
                 Analyze Audio
-              </Button>
-            )}
+              </Button>)}
           </div>
         </CardContent>
-      </Card>
-    );
-  }
-
-  if (!result) {
-    return null;
-  }
-
-  const formatDuration = (seconds: number) => {
-    const mins = Math.floor(seconds / 60);
-    const secs = Math.floor(seconds % 60);
-    return `${mins}:${secs.toString().padStart(2, '0')}`;
-  };
-
-  const formatNumber = (num: number) => {
-    return num.toFixed(2);
-  };
-
-  const formatFileSize = (bytes: number): string => {
-    if (bytes === 0) return "0 B";
-    const k = 1024;
-    const sizes = ["B", "KB", "MB", "GB"];
-    const i = Math.floor(Math.log(bytes) / Math.log(k));
-    return parseFloat((bytes / Math.pow(k, i)).toFixed(1)) + " " + sizes[i];
-  };
-
-  // Calculate Nyquist frequency (half of sample rate)
-  const nyquistFreq = result.sample_rate / 2;
-
-  return (
-    <Card className="gap-2">
+      </Card>);
+    }
+    if (!result) {
+        return null;
+    }
+    const formatDuration = (seconds: number) => {
+        const mins = Math.floor(seconds / 60);
+        const secs = Math.floor(seconds % 60);
+        return `${mins}:${secs.toString().padStart(2, '0')}`;
+    };
+    const formatNumber = (num: number) => {
+        return num.toFixed(2);
+    };
+    const formatFileSize = (bytes: number): string => {
+        if (bytes === 0)
+            return "0 B";
+        const k = 1024;
+        const sizes = ["B", "KB", "MB", "GB"];
+        const i = Math.floor(Math.log(bytes) / Math.log(k));
+        return parseFloat((bytes / Math.pow(k, i)).toFixed(1)) + " " + sizes[i];
+    };
+    const nyquistFreq = result.sample_rate / 2;
+    return (<Card className="gap-2">
       <CardHeader>
-        {filePath && (
-          <p className="text-sm font-mono break-all">{filePath}</p>
-        )}
+        {filePath && (<p className="text-sm font-mono break-all">{filePath}</p>)}
       </CardHeader>
 
       <CardContent className="space-y-2">
-        {/* Audio Properties - Single line */}
+        
         <div className="flex flex-wrap items-center gap-x-3 gap-y-1 text-xs">
           <div className="flex items-center gap-1">
-            <Radio className="h-3 w-3 text-muted-foreground" />
+            <Radio className="h-3 w-3 text-muted-foreground"/>
             <span className="text-muted-foreground">Sample Rate:</span>
             <span className="font-semibold">{(result.sample_rate / 1000).toFixed(1)} kHz</span>
           </div>
           <div className="flex items-center gap-1">
-            <FileAudio className="h-3 w-3 text-muted-foreground" />
+            <FileAudio className="h-3 w-3 text-muted-foreground"/>
             <span className="text-muted-foreground">Bit Depth:</span>
             <span className="font-semibold">{result.bit_depth}</span>
           </div>
           <div className="flex items-center gap-1">
-            <Waves className="h-3 w-3 text-muted-foreground" />
+            <Waves className="h-3 w-3 text-muted-foreground"/>
             <span className="text-muted-foreground">Channels:</span>
             <span className="font-semibold">{result.channels === 2 ? "Stereo" : result.channels === 1 ? "Mono" : `${result.channels}`}</span>
           </div>
           <div className="flex items-center gap-1">
-            <Clock className="h-3 w-3 text-muted-foreground" />
+            <Clock className="h-3 w-3 text-muted-foreground"/>
             <span className="text-muted-foreground">Duration:</span>
             <span className="font-semibold">{formatDuration(result.duration)}</span>
           </div>
           <div className="flex items-center gap-1">
-            <Gauge className="h-3 w-3 text-muted-foreground" />
+            <Gauge className="h-3 w-3 text-muted-foreground"/>
             <span className="text-muted-foreground">Nyquist:</span>
             <span className="font-semibold">{(nyquistFreq / 1000).toFixed(1)} kHz</span>
           </div>
-          {result.file_size > 0 && (
-            <div className="flex items-center gap-1">
-              <HardDrive className="h-3 w-3 text-muted-foreground" />
+          {result.file_size > 0 && (<div className="flex items-center gap-1">
+              <HardDrive className="h-3 w-3 text-muted-foreground"/>
               <span className="text-muted-foreground">Size:</span>
               <span className="font-semibold">{formatFileSize(result.file_size)}</span>
-            </div>
-          )}
+            </div>)}
         </div>
 
-        {/* Dynamic Range - Single line */}
+        
         <div className="flex flex-wrap items-center gap-x-3 gap-y-1 text-xs border-t pt-2">
           <div className="flex items-center gap-1">
-            <TrendingUp className="h-3 w-3 text-muted-foreground" />
+            <TrendingUp className="h-3 w-3 text-muted-foreground"/>
             <span className="text-muted-foreground">Dynamic Range:</span>
             <span className="font-semibold">{formatNumber(result.dynamic_range)} dB</span>
           </div>
@@ -156,6 +121,5 @@ export function AudioAnalysis({
           </div>
         </div>
       </CardContent>
-    </Card>
-  );
+    </Card>);
 }

frontend/src/components/AudioAnalysisPage.tsx

@@ -7,149 +7,107 @@ import { useAudioAnalysis } from "@/hooks/useAudioAnalysis";
 import { SelectFile } from "../../wailsjs/go/main/App";
 import { toastWithSound as toast } from "@/lib/toast-with-sound";
 import { OnFileDrop, OnFileDropOff } from "../../wailsjs/runtime/runtime";
-
 interface AudioAnalysisPageProps {
-  onBack?: () => void;
+    onBack?: () => void;
 }
-
 export function AudioAnalysisPage({ onBack }: AudioAnalysisPageProps) {
-  const { analyzing, result, analyzeFile, clearResult, selectedFilePath, spectrumLoading } = useAudioAnalysis();
-  const [isDragging, setIsDragging] = useState(false);
-
-  const handleSelectFile = async () => {
-    try {
-      const filePath = await SelectFile();
-      if (filePath) {
-        await analyzeFile(filePath);
-      }
-    } catch (err) {
-      toast.error("File Selection Failed", {
-        description: err instanceof Error ? err.message : "Failed to select file",
-      });
-    }
-  };
-
-  const handleFileDrop = useCallback(
-    async (_x: number, _y: number, paths: string[]) => {
-      setIsDragging(false);
-
-      if (paths.length === 0) return;
-
-      const filePath = paths[0];
-
-      if (!filePath.toLowerCase().endsWith(".flac")) {
-        toast.error("Invalid File Type", {
-          description: "Please drop a FLAC file for analysis",
-        });
-        return;
-      }
-
-      await analyzeFile(filePath);
-    },
-    [analyzeFile]
-  );
-
-  useEffect(() => {
-    OnFileDrop((x, y, paths) => {
-      handleFileDrop(x, y, paths);
-    }, true);
-
-    return () => {
-      OnFileDropOff();
+    const { analyzing, result, analyzeFile, clearResult, selectedFilePath, spectrumLoading } = useAudioAnalysis();
+    const [isDragging, setIsDragging] = useState(false);
+    const handleSelectFile = async () => {
+        try {
+            const filePath = await SelectFile();
+            if (filePath) {
+                await analyzeFile(filePath);
+            }
+        }
+        catch (err) {
+            toast.error("File Selection Failed", {
+                description: err instanceof Error ? err.message : "Failed to select file",
+            });
+        }
     };
-  }, [handleFileDrop]);
-
-  const handleAnalyzeAnother = () => {
-    clearResult();
-  };
-
-  return (
-    <div className="space-y-6">
-      {/* Header */}
+    const handleFileDrop = useCallback(async (_x: number, _y: number, paths: string[]) => {
+        setIsDragging(false);
+        if (paths.length === 0)
+            return;
+        const filePath = paths[0];
+        if (!filePath.toLowerCase().endsWith(".flac")) {
+            toast.error("Invalid File Type", {
+                description: "Please drop a FLAC file for analysis",
+            });
+            return;
+        }
+        await analyzeFile(filePath);
+    }, [analyzeFile]);
+    useEffect(() => {
+        OnFileDrop((x, y, paths) => {
+            handleFileDrop(x, y, paths);
+        }, true);
+        return () => {
+            OnFileDropOff();
+        };
+    }, [handleFileDrop]);
+    const handleAnalyzeAnother = () => {
+        clearResult();
+    };
+    return (<div className="space-y-6">
+      
       <div className="flex items-center justify-between">
         <div className="flex items-center gap-4">
-          {onBack && (
-            <Button variant="ghost" size="icon" onClick={onBack}>
-              <ArrowLeft className="h-5 w-5" />
-            </Button>
-          )}
+          {onBack && (<Button variant="ghost" size="icon" onClick={onBack}>
+              <ArrowLeft className="h-5 w-5"/>
+            </Button>)}
           <h1 className="text-2xl font-bold">Audio Quality Analyzer</h1>
         </div>
-        {result && (
-          <Button onClick={handleAnalyzeAnother} variant="outline" size="sm">
-            <Trash2 className="h-4 w-4" />
+        {result && (<Button onClick={handleAnalyzeAnother} variant="outline" size="sm">
+            <Trash2 className="h-4 w-4"/>
             Clear
-          </Button>
-        )}
+          </Button>)}
       </div>
 
-      {/* File Selection */}
-      {!result && !analyzing && (
-        <div
-          className={`flex flex-col items-center justify-center h-[400px] border-2 border-dashed rounded-lg transition-colors ${
-            isDragging
-              ? "border-primary bg-primary/10"
-              : "border-muted-foreground/30"
-          }`}
-          onDragOver={(e) => {
-            e.preventDefault();
-            setIsDragging(true);
-          }}
-          onDragLeave={(e) => {
-            e.preventDefault();
-            setIsDragging(false);
-          }}
-          onDrop={(e) => {
-            e.preventDefault();
-            setIsDragging(false);
-          }}
-          style={{ "--wails-drop-target": "drop" } as React.CSSProperties}
-        >
+      
+      {!result && !analyzing && (<div className={`flex flex-col items-center justify-center h-[400px] border-2 border-dashed rounded-lg transition-colors ${isDragging
+                ? "border-primary bg-primary/10"
+                : "border-muted-foreground/30"}`} onDragOver={(e) => {
+                e.preventDefault();
+                setIsDragging(true);
+            }} onDragLeave={(e) => {
+                e.preventDefault();
+                setIsDragging(false);
+            }} onDrop={(e) => {
+                e.preventDefault();
+                setIsDragging(false);
+            }} style={{ "--wails-drop-target": "drop" } as React.CSSProperties}>
           <div className="mb-4 flex h-16 w-16 items-center justify-center rounded-full bg-muted">
-            <Upload className="h-8 w-8 text-primary" />
+            <Upload className="h-8 w-8 text-primary"/>
           </div>
           <p className="text-sm text-muted-foreground mb-4 text-center">
             {isDragging
-              ? "Drop your FLAC file here"
-              : "Drag and drop a FLAC file here, or click the button below to select"}
+                ? "Drop your FLAC file here"
+                : "Drag and drop a FLAC file here, or click the button below to select"}
           </p>
           <Button onClick={handleSelectFile} size="lg">
-            <Upload className="h-5 w-5" />
+            <Upload className="h-5 w-5"/>
             Select FLAC File
           </Button>
-        </div>
-      )}
+        </div>)}
 
-      {/* Loading State */}
-      {analyzing && !result && (
-        <div className="flex flex-col items-center justify-center py-16">
+      
+      {analyzing && !result && (<div className="flex flex-col items-center justify-center py-16">
           <div className="animate-spin rounded-full h-12 w-12 border-b-2 border-primary mb-4"></div>
           <p className="text-sm text-muted-foreground">Analyzing audio file...</p>
-        </div>
-      )}
+        </div>)}
 
-      {/* Analysis Results */}
-      {result && (
-        <div className="space-y-4">
-          {/* Detailed Analysis */}
-          <AudioAnalysis result={result} analyzing={analyzing} showAnalyzeButton={false} filePath={selectedFilePath} />
+      
+      {result && (<div className="space-y-4">
+          
+          <AudioAnalysis result={result} analyzing={analyzing} showAnalyzeButton={false} filePath={selectedFilePath}/>
 
-          {/* Spectrum Visualization */}
-          {spectrumLoading ? (
-            <div className="flex flex-col items-center justify-center py-16 border rounded-lg">
+          
+          {spectrumLoading ? (<div className="flex flex-col items-center justify-center py-16 border rounded-lg">
               <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-primary mb-2"></div>
               <p className="text-sm text-muted-foreground">Loading spectrum data...</p>
-            </div>
-          ) : (
-            <SpectrumVisualization
-              sampleRate={result.sample_rate}
-              bitsPerSample={result.bits_per_sample}
-              duration={result.duration}
-              spectrumData={result.spectrum}
-            />
-          )}
-        </div>
-      )}
-    </div>
-  );
+            </div>) : (<SpectrumVisualization sampleRate={result.sample_rate} bitsPerSample={result.bits_per_sample} duration={result.duration} spectrumData={result.spectrum}/>)}
+        </div>)}
+    </div>);
 }

frontend/src/components/DebugLoggerPage.tsx

@@ -1,101 +1,94 @@
 import { useState, useEffect, useRef } from "react";
-import { Trash2, Copy, Check } from "lucide-react";
+import { Trash2, Copy, Check, FileDown } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { logger, type LogEntry } from "@/lib/logger";
-
+import { ExportFailedDownloads } from "../../wailsjs/go/main/App";
+import { toastWithSound as toast } from "@/lib/toast-with-sound";
 const levelColors: Record<string, string> = {
-  info: "text-blue-500",
-  success: "text-green-500",
-  warning: "text-yellow-500",
-  error: "text-red-500",
-  debug: "text-gray-500",
+    info: "text-blue-500",
+    success: "text-green-500",
+    warning: "text-yellow-500",
+    error: "text-red-500",
+    debug: "text-gray-500",
 };
-
 function formatTime(date: Date): string {
-  return date.toLocaleTimeString("en-US", {
-    hour12: false,
-    hour: "2-digit",
-    minute: "2-digit",
-    second: "2-digit",
-  });
-}
-
-export function DebugLoggerPage() {
-  const [logs, setLogs] = useState<LogEntry[]>([]);
-  const [copied, setCopied] = useState(false);
-  const scrollRef = useRef<HTMLDivElement>(null);
-
-  useEffect(() => {
-    const unsubscribe = logger.subscribe(() => {
-      setLogs(logger.getLogs());
+    return date.toLocaleTimeString("en-US", {
+        hour12: false,
+        hour: "2-digit",
+        minute: "2-digit",
+        second: "2-digit",
     });
-    setLogs(logger.getLogs());
-    return () => {
-      unsubscribe();
+}
+export function DebugLoggerPage() {
+    const [logs, setLogs] = useState<LogEntry[]>([]);
+    const [copied, setCopied] = useState(false);
+    const scrollRef = useRef<HTMLDivElement>(null);
+    useEffect(() => {
+        const unsubscribe = logger.subscribe(() => {
+            setLogs(logger.getLogs());
+        });
+        setLogs(logger.getLogs());
+        return () => {
+            unsubscribe();
+        };
+    }, []);
+    useEffect(() => {
+        if (scrollRef.current) {
+            scrollRef.current.scrollTop = scrollRef.current.scrollHeight;
+        }
+    }, [logs]);
+    const handleClear = () => {
+        logger.clear();
     };
-  }, []);
-
-  useEffect(() => {
-    if (scrollRef.current) {
-      scrollRef.current.scrollTop = scrollRef.current.scrollHeight;
-    }
-  }, [logs]);
-
-  const handleClear = () => {
-    logger.clear();
-  };
-
-  const handleCopy = async () => {
-    const logText = logs
-      .map((log) => `[${formatTime(log.timestamp)}] [${log.level}] ${log.message}`)
-      .join("\n");
-
-    try {
-      await navigator.clipboard.writeText(logText);
-      setCopied(true);
-      setTimeout(() => setCopied(false), 500);
-    } catch (err) {
-      console.error("Failed to copy logs:", err);
-    }
-  };
-
-  return (
-    <div className="space-y-6">
+    const handleCopy = async () => {
+        const logText = logs
+            .map((log) => `[${formatTime(log.timestamp)}] [${log.level}] ${log.message}`)
+            .join("\n");
+        try {
+            await navigator.clipboard.writeText(logText);
+            setCopied(true);
+            setTimeout(() => setCopied(false), 500);
+        }
+        catch (err) {
+            console.error("Failed to copy logs:", err);
+        }
+    };
+    const handleExportFailed = async () => {
+        try {
+            const message = await ExportFailedDownloads();
+            if (message.startsWith("Successfully")) {
+                toast.success(message);
+            }
+            else if (message !== "Export cancelled") {
+                toast.info(message);
+            }
+        }
+        catch (error) {
+            console.error("Failed to export:", error);
+            toast.error(`Failed to export: ${error}`);
+        }
+    };
+    return (<div className="space-y-6">
       <div className="flex items-center justify-between">
         <h1 className="text-2xl font-bold">Debug Logs</h1>
         <div className="flex items-center gap-2">
-          <Button
-            variant="outline"
-            size="sm"
-            className="gap-1.5"
-            onClick={handleCopy}
-            disabled={logs.length === 0}
-          >
-            {copied ? <Check className="h-4 w-4" /> : <Copy className="h-4 w-4" />}
+          <Button variant="outline" size="sm" className="gap-1.5" onClick={handleExportFailed}>
+            <FileDown className="h-4 w-4"/>
+            Export Failed
+          </Button>
+          <Button variant="outline" size="sm" className="gap-1.5" onClick={handleCopy} disabled={logs.length === 0}>
+            {copied ? <Check className="h-4 w-4"/> : <Copy className="h-4 w-4"/>}
             Copy
           </Button>
-          <Button
-            variant="outline"
-            size="sm"
-            className="gap-1.5"
-            onClick={handleClear}
-            disabled={logs.length === 0}
-          >
-            <Trash2 className="h-4 w-4" />
+          <Button variant="outline" size="sm" className="gap-1.5" onClick={handleClear} disabled={logs.length === 0}>
+            <Trash2 className="h-4 w-4"/>
             Clear
           </Button>
         </div>
       </div>
 
-      <div
-        ref={scrollRef}
-        className="h-[calc(100vh-220px)] overflow-y-auto bg-muted/50 rounded-lg p-4 font-mono text-xs"
-      >
-        {logs.length === 0 ? (
-          <p className="text-muted-foreground lowercase">no logs yet...</p>
-        ) : (
-          logs.map((log, i) => (
-            <div key={i} className="flex gap-2 py-0.5">
+      <div ref={scrollRef} className="h-[calc(100vh-220px)] overflow-y-auto bg-muted/50 rounded-lg p-4 font-mono text-xs">
+        {logs.length === 0 ? (<p className="text-muted-foreground lowercase">no logs yet...</p>) : (logs.map((log, i) => (<div key={i} className="flex gap-2 py-0.5">
               <span className="text-muted-foreground shrink-0">
                 [{formatTime(log.timestamp)}]
               </span>
@@ -103,10 +96,7 @@ export function DebugLoggerPage() {
                 [{log.level}]
               </span>
               <span className="break-all">{log.message}</span>
-            </div>
-          ))
-        )}
+            </div>)))}
       </div>
-    </div>
-  );
+    </div>);
 }

frontend/src/components/DownloadProgress.tsx

@@ -1,30 +1,29 @@
 import { Button } from "@/components/ui/button";
 import { Progress } from "@/components/ui/progress";
 import { StopCircle } from "lucide-react";
-
 interface DownloadProgressProps {
-  progress: number;
-  currentTrack: { name: string; artists: string } | null;
-  onStop: () => void;
+    progress: number;
+    currentTrack: {
+        name: string;
+        artists: string;
+    } | null;
+    onStop: () => void;
 }
-
 export function DownloadProgress({ progress, currentTrack, onStop }: DownloadProgressProps) {
-  const clampedProgress = Math.min(100, Math.max(0, progress));
-  return (
-    <div className="w-full space-y-2 mt-4">
+    const clampedProgress = Math.min(100, Math.max(0, progress));
+    return (<div className="w-full space-y-2 mt-4">
       <div className="flex items-center gap-2">
-        <Progress value={clampedProgress} className="h-2 flex-1" />
+        <Progress value={clampedProgress} className="h-2 flex-1"/>
         <Button variant="destructive" size="sm" onClick={onStop} className="gap-1.5">
-          <StopCircle className="h-4 w-4" />
+          <StopCircle className="h-4 w-4"/>
           Stop
         </Button>
       </div>
       <p className="text-xs text-muted-foreground">
         {clampedProgress}% -{" "}
         {currentTrack
-          ? `${currentTrack.name} - ${currentTrack.artists}`
-          : "Preparing download..."}
+            ? `${currentTrack.name} - ${currentTrack.artists}`
+            : "Preparing download..."}
       </p>
-    </div>
-  );
+    </div>);
 }

frontend/src/components/DownloadProgressToast.tsx

@@ -2,47 +2,30 @@ import { useDownloadProgress } from "@/hooks/useDownloadProgress";
 import { useDownloadQueueData } from "@/hooks/useDownloadQueueData";
 import { Download, ChevronRight } from "lucide-react";
 import { Button } from "@/components/ui/button";
-
 interface DownloadProgressToastProps {
-  onClick: () => void;
+    onClick: () => void;
 }
-
 export function DownloadProgressToast({ onClick }: DownloadProgressToastProps) {
-  const progress = useDownloadProgress();
-  const queueInfo = useDownloadQueueData();
-
-  // Show indicator if there are any queued or downloading items
-  // Don't show for completed/failed/skipped only
-  const hasActiveDownloads = queueInfo.queue.some(
-    item => item.status === "queued" || item.status === "downloading"
-  );
-
-  if (!hasActiveDownloads) {
-    return null;
-  }
-
-  return (
-    <div className="fixed bottom-4 left-[calc(56px+1rem)] z-50 animate-in slide-in-from-bottom-5 data-[state=closed]:animate-out data-[state=closed]:slide-out-to-bottom-5">
-      <Button
-        variant="outline"
-        className="bg-background border rounded-lg shadow-lg p-3 h-auto hover:bg-muted/50 transition-colors cursor-pointer"
-        onClick={onClick}
-      >
+    const progress = useDownloadProgress();
+    const queueInfo = useDownloadQueueData();
+    const hasActiveDownloads = queueInfo.queue.some(item => item.status === "queued" || item.status === "downloading");
+    if (!hasActiveDownloads) {
+        return null;
+    }
+    return (<div className="fixed bottom-4 left-[calc(56px+1rem)] z-50 animate-in slide-in-from-bottom-5 data-[state=closed]:animate-out data-[state=closed]:slide-out-to-bottom-5">
+      <Button variant="outline" className="bg-background border rounded-lg shadow-lg p-3 h-auto hover:bg-muted/50 transition-colors cursor-pointer" onClick={onClick}>
         <div className="flex items-center gap-3">
-          <Download className={`h-4 w-4 text-primary ${progress.is_downloading ? 'animate-bounce' : ''}`} />
+          <Download className={`h-4 w-4 text-primary ${progress.is_downloading ? 'animate-bounce' : ''}`}/>
           <div className="flex flex-col min-w-[80px]">
             <p className="text-sm font-medium font-mono tabular-nums">
               {progress.mb_downloaded.toFixed(2)} MB
             </p>
-            {progress.speed_mbps > 0 && (
-              <p className="text-xs text-muted-foreground font-mono tabular-nums">
+            {progress.speed_mbps > 0 && (<p className="text-xs text-muted-foreground font-mono tabular-nums">
                 {progress.speed_mbps.toFixed(2)} MB/s
-              </p>
-            )}
+              </p>)}
           </div>
-          <ChevronRight className="h-4 w-4 text-muted-foreground ml-1" />
+          <ChevronRight className="h-4 w-4 text-muted-foreground ml-1"/>
         </div>
       </Button>
-    </div>
-  );
+    </div>);
 }

frontend/src/components/DownloadQueue.tsx

@@ -1,287 +1,274 @@
 import { useEffect, useState } from "react";
-import { X, Download, CheckCircle2, XCircle, Clock, FileCheck, Trash2, HardDrive, Zap, Timer } from "lucide-react";
+import { X, Download, CheckCircle2, XCircle, Clock, FileCheck, Trash2, HardDrive, Zap, Timer, FileDown } from "lucide-react";
 import { Button } from "@/components/ui/button";
-import {
-  Dialog,
-  DialogContent,
-  DialogHeader,
-  DialogTitle,
-} from "@/components/ui/dialog";
-
+import { Dialog, DialogContent, DialogHeader, DialogTitle, } from "@/components/ui/dialog";
 import { Badge } from "@/components/ui/badge";
-import { GetDownloadQueue, ClearCompletedDownloads } from "../../wailsjs/go/main/App";
+import { GetDownloadQueue, ClearCompletedDownloads, ClearAllDownloads, ExportFailedDownloads } from "../../wailsjs/go/main/App";
+import { toastWithSound as toast } from "@/lib/toast-with-sound";
 import { backend } from "../../wailsjs/go/models";
-
 interface DownloadQueueProps {
-  isOpen: boolean;
-  onClose: () => void;
+    isOpen: boolean;
+    onClose: () => void;
 }
-
 export function DownloadQueue({ isOpen, onClose }: DownloadQueueProps) {
-  const [queueInfo, setQueueInfo] = useState<backend.DownloadQueueInfo>(
-    new backend.DownloadQueueInfo({
-      is_downloading: false,
-      queue: [],
-      current_speed: 0,
-      total_downloaded: 0,
-      session_start_time: 0,
-      queued_count: 0,
-      completed_count: 0,
-      failed_count: 0,
-      skipped_count: 0,
-    })
-  );
-
-  useEffect(() => {
-    if (!isOpen) return;
-
-    const fetchQueue = async () => {
-      try {
-        const info = await GetDownloadQueue();
-        setQueueInfo(info);
-      } catch (error) {
-        console.error("Failed to get download queue:", error);
-      }
+    const [queueInfo, setQueueInfo] = useState<backend.DownloadQueueInfo>(new backend.DownloadQueueInfo({
+        is_downloading: false,
+        queue: [],
+        current_speed: 0,
+        total_downloaded: 0,
+        session_start_time: 0,
+        queued_count: 0,
+        completed_count: 0,
+        failed_count: 0,
+        skipped_count: 0,
+    }));
+    useEffect(() => {
+        if (!isOpen)
+            return;
+        const fetchQueue = async () => {
+            try {
+                const info = await GetDownloadQueue();
+                setQueueInfo(info);
+            }
+            catch (error) {
+                console.error("Failed to get download queue:", error);
+            }
+        };
+        fetchQueue();
+        const interval = setInterval(fetchQueue, 500);
+        return () => clearInterval(interval);
+    }, [isOpen]);
+    const handleClearHistory = async () => {
+        try {
+            await ClearCompletedDownloads();
+            const info = await GetDownloadQueue();
+            setQueueInfo(info);
+        }
+        catch (error) {
+            console.error("Failed to clear history:", error);
+        }
     };
-
-    // Initial fetch
-    fetchQueue();
-
-    // Poll every 500ms when dialog is open
-    const interval = setInterval(fetchQueue, 500);
-
-    return () => clearInterval(interval);
-  }, [isOpen]);
-
-  const handleClearHistory = async () => {
-    try {
-      await ClearCompletedDownloads();
-      // Refetch immediately to update UI
-      const info = await GetDownloadQueue();
-      setQueueInfo(info);
-    } catch (error) {
-      console.error("Failed to clear history:", error);
-    }
-  };
-
-  const getStatusIcon = (status: string) => {
-    switch (status) {
-      case "downloading":
-        return <Download className="h-4 w-4 text-blue-500 animate-bounce" />;
-      case "completed":
-        return <CheckCircle2 className="h-4 w-4 text-green-500" />;
-      case "failed":
-        return <XCircle className="h-4 w-4 text-red-500" />;
-      case "skipped":
-        return <FileCheck className="h-4 w-4 text-yellow-500" />;
-      case "queued":
-        return <Clock className="h-4 w-4 text-muted-foreground" />;
-      default:
-        return null;
-    }
-  };
-
-  const getStatusBadge = (status: string) => {
-    const variants: Record<string, "default" | "secondary" | "destructive" | "outline"> = {
-      downloading: "default",
-      completed: "outline",
-      failed: "destructive",
-      skipped: "secondary",
-      queued: "outline",
+    const handleReset = async () => {
+        try {
+            await ClearAllDownloads();
+            const info = await GetDownloadQueue();
+            setQueueInfo(info);
+            toast.success("Download queue reset");
+        }
+        catch (error) {
+            console.error("Failed to reset queue:", error);
+        }
     };
-
-    return (
-      <Badge variant={variants[status] || "outline"} className="text-xs">
-        {status}
-      </Badge>
-    );
-  };
-
-  // Format session duration
-  const formatDuration = (startTimestamp: number) => {
-    if (startTimestamp === 0) return "—";
-    const now = Math.floor(Date.now() / 1000);
-    const durationSeconds = now - startTimestamp;
-    
-    const hours = Math.floor(durationSeconds / 3600);
-    const minutes = Math.floor((durationSeconds % 3600) / 60);
-    const seconds = durationSeconds % 60;
-    
-    if (hours > 0) {
-      return `${hours}h ${minutes}m ${seconds}s`;
-    } else if (minutes > 0) {
-      return `${minutes}m ${seconds}s`;
-    } else {
-      return `${seconds}s`;
-    }
-  };
-
-  return (
-    <Dialog open={isOpen} onOpenChange={onClose}>
-      <DialogContent className="max-w-[1200px] w-[95vw] max-h-[80vh] flex flex-col p-0 gap-0 [&>button]:hidden">
-        <DialogHeader className="px-6 pt-6 pb-4 border-b space-y-0">
-          <div className="flex items-center justify-between mb-4">
-            <DialogTitle className="text-lg font-semibold">Download Queue</DialogTitle>
-            <div className="flex items-center gap-2">
-              {(queueInfo.completed_count > 0 || queueInfo.failed_count > 0 || queueInfo.skipped_count > 0) && (
-                <Button
-                  variant="ghost"
-                  size="sm"
-                  className="h-7 text-xs gap-1.5"
-                  onClick={handleClearHistory}
-                >
-                  <Trash2 className="h-3 w-3" />
-                  Clear History
-                </Button>
-              )}
-              <Button
-                variant="ghost"
-                size="icon"
-                className="h-7 w-7 rounded-full hover:bg-muted"
-                onClick={onClose}
-              >
-                <X className="h-4 w-4" />
-              </Button>
-            </div>
-          </div>
-
-          {/* Queue Status */}
-          <div className="flex items-center gap-4 text-sm">
-            <div className="flex items-center gap-1.5">
-              <Clock className="h-3.5 w-3.5 text-muted-foreground" />
-              <span className="text-muted-foreground">Queued:</span>
-              <span className="font-semibold">{queueInfo.queued_count}</span>
-            </div>
-            <div className="flex items-center gap-1.5">
-              <CheckCircle2 className="h-3.5 w-3.5 text-green-500" />
-              <span className="text-muted-foreground">Completed:</span>
-              <span className="font-semibold">{queueInfo.completed_count}</span>
-            </div>
-            <div className="flex items-center gap-1.5">
-              <FileCheck className="h-3.5 w-3.5 text-yellow-500" />
-              <span className="text-muted-foreground">Skipped:</span>
-              <span className="font-semibold">{queueInfo.skipped_count}</span>
-            </div>
-            <div className="flex items-center gap-1.5">
-              <XCircle className="h-3.5 w-3.5 text-red-500" />
-              <span className="text-muted-foreground">Failed:</span>
-              <span className="font-semibold">{queueInfo.failed_count}</span>
-            </div>
-          </div>
-
-          {/* Session Stats */}
-          <div className="flex items-center gap-4 text-sm pt-3 mt-3 border-t">
-            <div className="flex items-center gap-1.5">
-              <HardDrive className="h-3.5 w-3.5 text-muted-foreground" />
-              <span className="text-muted-foreground">Downloaded:</span>
-              <span className="font-semibold font-mono">
-                {queueInfo.total_downloaded > 0 ? `${queueInfo.total_downloaded.toFixed(2)} MB` : "0.00 MB"}
-              </span>
-            </div>
-            <div className="flex items-center gap-1.5">
-              <Zap className="h-3.5 w-3.5 text-muted-foreground" />
-              <span className="text-muted-foreground">Speed:</span>
-              <span className="font-semibold font-mono">
-                {queueInfo.current_speed > 0 && queueInfo.is_downloading 
-                  ? `${queueInfo.current_speed.toFixed(2)} MB/s` 
-                  : "—"}
-              </span>
-            </div>
-            <div className="flex items-center gap-1.5">
-              <Timer className="h-3.5 w-3.5 text-muted-foreground" />
-              <span className="text-muted-foreground">Duration:</span>
-              <span className="font-semibold font-mono">
-                {queueInfo.session_start_time > 0 ? formatDuration(queueInfo.session_start_time) : "—"}
-              </span>
-            </div>
-          </div>
-
-        </DialogHeader>
-
-        {/* Download Queue List */}
-        <div className="flex-1 overflow-y-auto px-6 custom-scrollbar">
-          <div className="space-y-2 py-4">
-            {queueInfo.queue.length === 0 ? (
-              <div className="text-center py-12 text-muted-foreground">
-                <Download className="h-12 w-12 mx-auto mb-3 opacity-20" />
-                <p>No downloads in queue</p>
-              </div>
-            ) : (
-              queueInfo.queue.map((item) => (
-                <div
-                  key={item.id}
-                  className="border rounded-lg p-3 hover:bg-muted/30 transition-colors"
-                >
-                  <div className="flex items-start gap-3">
-                    <div className="mt-1">{getStatusIcon(item.status)}</div>
-
-                    <div className="flex-1 min-w-0">
-                      <div className="flex items-start justify-between gap-2 mb-1">
-                        <div className="flex-1 min-w-0">
-                          <p className="font-medium truncate">{item.track_name}</p>
-                          <p className="text-sm text-muted-foreground truncate">
-                            {item.artist_name}
-                            {item.album_name && ` • ${item.album_name}`}
-                          </p>
-                        </div>
-                        {getStatusBadge(item.status)}
-                      </div>
-
-                      {/* Info for downloading items */}
-                      {item.status === "downloading" && (
-                        <div className="flex items-center gap-3 mt-1.5 text-xs text-muted-foreground font-mono">
-                          <span>
-                            {item.progress > 0
-                              ? `${item.progress.toFixed(2)} MB`
-                              : queueInfo.is_downloading && queueInfo.current_speed > 0
-                              ? "Downloading..."
-                              : "Starting..."}
-                          </span>
-                          <span>
-                            {item.speed > 0
-                              ? `${item.speed.toFixed(2)} MB/s`
-                              : queueInfo.current_speed > 0
-                              ? `${queueInfo.current_speed.toFixed(2)} MB/s`
-                              : "—"}
-                          </span>
-                        </div>
-                      )}
-
-                      {/* Completed info */}
-                      {item.status === "completed" && (
-                        <div className="flex items-center gap-3 mt-1.5 text-xs text-muted-foreground">
-                          <span className="font-mono">{item.progress.toFixed(2)} MB</span>
-                        </div>
-                      )}
-
-                      {/* Skipped info */}
-                      {item.status === "skipped" && (
-                        <div className="mt-1.5 text-xs text-muted-foreground">
-                          File already exists
-                        </div>
-                      )}
-
-                      {/* Error message */}
-                      {item.status === "failed" && item.error_message && (
-                        <div className="mt-1.5 text-xs text-red-500 bg-red-50 dark:bg-red-950/20 rounded px-2 py-1">
-                          {item.error_message}
-                        </div>
-                      )}
-
-                      {/* File path for completed/skipped */}
-                      {(item.status === "completed" || item.status === "skipped") && item.file_path && (
-                        <div className="mt-1.5 text-xs text-muted-foreground truncate font-mono">
-                          {item.file_path}
-                        </div>
-                      )}
-                    </div>
-                  </div>
-                </div>
-              ))
-            )}
+    const handleExportFailed = async () => {
+        try {
+            const message = await ExportFailedDownloads();
+            if (message.startsWith("Successfully")) {
+                toast.success(message);
+            }
+            else if (message !== "Export cancelled") {
+                toast.info(message);
+            }
+        }
+        catch (error) {
+            console.error("Failed to export:", error);
+            toast.error(`Failed to export: ${error}`);
+        }
+    };
+    const getStatusIcon = (status: string) => {
+        switch (status) {
+            case "downloading":
+                return <Download className="h-4 w-4 text-blue-500 animate-bounce"/>;
+            case "completed":
+                return <CheckCircle2 className="h-4 w-4 text-green-500"/>;
+            case "failed":
+                return <XCircle className="h-4 w-4 text-red-500"/>;
+            case "skipped":
+                return <FileCheck className="h-4 w-4 text-yellow-500"/>;
+            case "queued":
+                return <Clock className="h-4 w-4 text-muted-foreground"/>;
+            default:
+                return null;
+        }
+    };
+    const getStatusBadge = (status: string) => {
+        const variants: Record<string, "default" | "secondary" | "destructive" | "outline"> = {
+            downloading: "default",
+            completed: "outline",
+            failed: "destructive",
+            skipped: "secondary",
+            queued: "outline",
+        };
+        return (<Badge variant={variants[status] || "outline"} className="text-xs">
+      {status}
+    </Badge>);
+    };
+    const formatDuration = (startTimestamp: number) => {
+        if (startTimestamp === 0)
+            return "—";
+        const now = Math.floor(Date.now() / 1000);
+        const durationSeconds = now - startTimestamp;
+        const hours = Math.floor(durationSeconds / 3600);
+        const minutes = Math.floor((durationSeconds % 3600) / 60);
+        const seconds = durationSeconds % 60;
+        if (hours > 0) {
+            return `${hours}h ${minutes}m ${seconds}s`;
+        }
+        else if (minutes > 0) {
+            return `${minutes}m ${seconds}s`;
+        }
+        else {
+            return `${seconds}s`;
+        }
+    };
+    const [filterStatus, setFilterStatus] = useState<string>("all");
+    const toggleFilter = (status: string) => {
+        setFilterStatus(prev => prev === status ? "all" : status);
+    };
+    const filteredQueue = queueInfo.queue.filter((item: any) => {
+        if (filterStatus === "all")
+            return true;
+        return item.status === filterStatus;
+    });
+    return (<Dialog open={isOpen} onOpenChange={onClose}>
+    <DialogContent className="max-w-[1200px] w-[95vw] max-h-[80vh] flex flex-col p-0 gap-0 [&>button]:hidden">
+      <DialogHeader className="px-6 pt-6 pb-4 border-b space-y-0">
+        <div className="flex items-center justify-between mb-4">
+          <DialogTitle className="text-lg font-semibold hover:text-primary transition-colors cursor-pointer" onClick={handleReset}>Download Queue</DialogTitle>
+          <div className="flex items-center gap-2">
+            {(queueInfo.completed_count > 0 || queueInfo.failed_count > 0 || queueInfo.skipped_count > 0) && (<Button variant="ghost" size="sm" className="h-7 text-xs gap-1.5" onClick={handleClearHistory}>
+              <Trash2 className="h-3 w-3"/>
+              Clear History
+            </Button>)}
+            {queueInfo.failed_count > 0 && (<Button variant="ghost" size="sm" className="h-7 text-xs gap-1.5" onClick={handleExportFailed}>
+              <FileDown className="h-3 w-3"/>
+              Export Failures
+            </Button>)}
+            <Button variant="ghost" size="icon" className="h-7 w-7 rounded-full hover:bg-muted" onClick={onClose}>
+              <X className="h-4 w-4"/>
+            </Button>
           </div>
         </div>
-      </DialogContent>
-    </Dialog>
-  );
+
+
+        <div className="flex items-center gap-4 text-sm">
+          <div className={`flex items-center gap-1.5 cursor-pointer hover:opacity-80 transition-all select-none ${filterStatus === 'queued' ? 'bg-secondary px-2 py-0.5 rounded-md ring-1 ring-border' : ''}`} onClick={() => toggleFilter('queued')}>
+            <Clock className="h-3.5 w-3.5 text-muted-foreground"/>
+            <span className="text-muted-foreground">Queued:</span>
+            <span className="font-semibold">{queueInfo.queued_count}</span>
+          </div>
+          <div className={`flex items-center gap-1.5 cursor-pointer hover:opacity-80 transition-all select-none ${filterStatus === 'completed' ? 'bg-green-500/10 px-2 py-0.5 rounded-md ring-1 ring-green-500/20' : ''}`} onClick={() => toggleFilter('completed')}>
+            <CheckCircle2 className="h-3.5 w-3.5 text-green-500"/>
+            <span className="text-muted-foreground">Completed:</span>
+            <span className="font-semibold">{queueInfo.completed_count}</span>
+          </div>
+          <div className={`flex items-center gap-1.5 cursor-pointer hover:opacity-80 transition-all select-none ${filterStatus === 'skipped' ? 'bg-yellow-500/10 px-2 py-0.5 rounded-md ring-1 ring-yellow-500/20' : ''}`} onClick={() => toggleFilter('skipped')}>
+            <FileCheck className="h-3.5 w-3.5 text-yellow-500"/>
+            <span className="text-muted-foreground">Skipped:</span>
+            <span className="font-semibold">{queueInfo.skipped_count}</span>
+          </div>
+          <div className={`flex items-center gap-1.5 cursor-pointer hover:opacity-80 transition-all select-none ${filterStatus === 'failed' ? 'bg-red-500/10 px-2 py-0.5 rounded-md ring-1 ring-red-500/20' : ''}`} onClick={() => toggleFilter('failed')}>
+            <XCircle className="h-3.5 w-3.5 text-red-500"/>
+            <span className="text-muted-foreground">Failed:</span>
+            <span className="font-semibold">{queueInfo.failed_count}</span>
+          </div>
+        </div>
+
+
+        <div className="flex items-center gap-4 text-sm pt-3 mt-3 border-t">
+          <div className="flex items-center gap-1.5">
+            <HardDrive className="h-3.5 w-3.5 text-muted-foreground"/>
+            <span className="text-muted-foreground">Downloaded:</span>
+            <span className="font-semibold font-mono">
+              {queueInfo.total_downloaded > 0 ? `${queueInfo.total_downloaded.toFixed(2)} MB` : "0.00 MB"}
+            </span>
+          </div>
+          <div className="flex items-center gap-1.5">
+            <Zap className="h-3.5 w-3.5 text-muted-foreground"/>
+            <span className="text-muted-foreground">Speed:</span>
+            <span className="font-semibold font-mono">
+              {queueInfo.current_speed > 0 && queueInfo.is_downloading
+            ? `${queueInfo.current_speed.toFixed(2)} MB/s`
+            : "—"}
+            </span>
+          </div>
+          <div className="flex items-center gap-1.5">
+            <Timer className="h-3.5 w-3.5 text-muted-foreground"/>
+            <span className="text-muted-foreground">Duration:</span>
+            <span className="font-semibold font-mono">
+              {queueInfo.session_start_time > 0 ? formatDuration(queueInfo.session_start_time) : "—"}
+            </span>
+          </div>
+        </div>
+
+      </DialogHeader>
+
+
+      <div className="flex-1 overflow-y-auto px-6 custom-scrollbar">
+        <div className="space-y-2 py-4">
+          {queueInfo.queue.length === 0 ? (<div className="text-center py-12 text-muted-foreground">
+            <Download className="h-12 w-12 mx-auto mb-3 opacity-20"/>
+            <p>No downloads in queue</p>
+          </div>) : filteredQueue.length === 0 ? (<div className="text-center py-12 text-muted-foreground">
+             <p>No downloads with status "{filterStatus}"</p>
+             <Button variant="link" onClick={() => setFilterStatus("all")}>Clear filter</Button>
+            </div>) : (filteredQueue.map((item: any) => (<div key={item.id} className="border rounded-lg p-3 hover:bg-muted/30 transition-colors">
+            <div className="flex items-start gap-3">
+              <div className="mt-1">{getStatusIcon(item.status)}</div>
+
+              <div className="flex-1 min-w-0">
+                <div className="flex items-start justify-between gap-2 mb-1">
+                  <div className="flex-1 min-w-0">
+                    <p className="font-medium truncate">{item.track_name}</p>
+                    <p className="text-sm text-muted-foreground truncate">
+                      {item.artist_name}
+                      {item.album_name && ` • ${item.album_name}`}
+                    </p>
+                  </div>
+                  {getStatusBadge(item.status)}
+                </div>
+
+
+                {item.status === "downloading" && (<div className="flex items-center gap-3 mt-1.5 text-xs text-muted-foreground font-mono">
+                  <span>
+                    {item.progress > 0
+                    ? `${item.progress.toFixed(2)} MB`
+                    : queueInfo.is_downloading && queueInfo.current_speed > 0
+                        ? "Downloading..."
+                        : "Starting..."}
+                  </span>
+                  <span>
+                    {item.speed > 0
+                    ? `${item.speed.toFixed(2)} MB/s`
+                    : queueInfo.current_speed > 0
+                        ? `${queueInfo.current_speed.toFixed(2)} MB/s`
+                        : "—"}
+                  </span>
+                </div>)}
+
+
+                {item.status === "completed" && (<div className="flex items-center gap-3 mt-1.5 text-xs text-muted-foreground">
+                  <span className="font-mono">{item.progress.toFixed(2)} MB</span>
+                </div>)}
+
+
+                {item.status === "skipped" && (<div className="mt-1.5 text-xs text-muted-foreground">
+                  File already exists
+                </div>)}
+
+
+                {item.status === "failed" && item.error_message && (<div className="mt-1.5 text-xs text-red-500 bg-red-50 dark:bg-red-950/20 rounded px-2 py-1">
+                  {item.error_message}
+                </div>)}
+
+
+                {(item.status === "completed" || item.status === "skipped") && item.file_path && (<div className="mt-1.5 text-xs text-muted-foreground truncate font-mono">
+                  {item.file_path}
+                </div>)}
+              </div>
+            </div>
+          </div>)))}
+        </div>
+      </div>
+    </DialogContent>
+  </Dialog>);
 }

frontend/src/components/DragDropTextarea.tsx

@@ -0,0 +1,182 @@
+import { useState, useEffect } from "react";
+import type { DragEvent } from "react";
+import { UploadImageBytes, UploadImage, SelectImageVideo } from "../../wailsjs/go/main/App";
+import { Upload, Loader2, ImagePlus, X, Check, FileVideo, ImageIcon } from "lucide-react";
+import { cn } from "@/lib/utils";
+import { Button } from "@/components/ui/button";
+interface UploadedFile {
+    id: string;
+    name: string;
+    url: string;
+    type: 'image' | 'video' | 'unknown';
+    status: 'uploading' | 'done' | 'error';
+    error?: string;
+}
+interface DragDropMediaProps {
+    value: string;
+    onChange: (value: string) => void;
+    className?: string;
+}
+export function DragDropMedia({ value, onChange, className }: DragDropMediaProps) {
+    const [isDragging, setIsDragging] = useState(false);
+    const [files, setFiles] = useState<UploadedFile[]>(() => {
+        if (!value)
+            return [];
+        return value.split('\n').filter(line => line.trim()).map((line, i) => {
+            const match = line.match(/!\[(.*?)\]\((.*?)\)/);
+            if (match) {
+                return {
+                    id: `init-${i}-${Date.now()}`,
+                    name: match[1] === 'image' || match[1] === 'video' ? `file-${i}` : match[1],
+                    url: match[2] || line,
+                    type: (match[2] && match[2].match(/\.(mp4|mkv|webm|mov)$/i)) ? 'video' : 'image',
+                    status: 'done'
+                };
+            }
+            return {
+                id: `init-${i}-${Date.now()}`,
+                name: 'unknown',
+                url: line,
+                type: 'image',
+                status: 'done'
+            };
+        });
+    });
+    useEffect(() => {
+        const newValue = files
+            .filter(f => f.status === 'done' && f.url)
+            .map(f => f.url)
+            .join('\n');
+        if (newValue !== value) {
+            onChange(newValue);
+        }
+    }, [files]);
+    const handleDragOver = (e: DragEvent<HTMLDivElement>) => {
+        e.preventDefault();
+        e.stopPropagation();
+        setIsDragging(true);
+    };
+    const handleDragLeave = (e: DragEvent<HTMLDivElement>) => {
+        e.preventDefault();
+        e.stopPropagation();
+        setIsDragging(false);
+    };
+    const handleDrop = async (e: DragEvent<HTMLDivElement>) => {
+        e.preventDefault();
+        e.stopPropagation();
+        setIsDragging(false);
+        if (e.dataTransfer.files && e.dataTransfer.files.length > 0) {
+            await handleFiles(Array.from(e.dataTransfer.files));
+        }
+    };
+    const handleFiles = async (fileList: File[]) => {
+        const timestamp = Date.now();
+        const newFiles: UploadedFile[] = fileList.map((f, i) => ({
+            id: `drop-${timestamp}-${i}`,
+            name: f.name,
+            url: '',
+            type: f.type.startsWith('video') ? 'video' : 'image',
+            status: 'uploading'
+        }));
+        setFiles(prev => [...prev, ...newFiles]);
+        for (let i = 0; i < fileList.length; i++) {
+            const file = fileList[i];
+            const fileId = newFiles[i].id;
+            try {
+                const base64 = await fileToBase64(file);
+                const result = await UploadImageBytes(file.name, base64);
+                setFiles(prev => prev.map(f => f.id === fileId
+                    ? { ...f, status: 'done', url: result }
+                    : f));
+            }
+            catch (err: any) {
+                console.error("Upload failed", err);
+                setFiles(prev => prev.map(f => f.id === fileId
+                    ? { ...f, status: 'error', error: err.message || "Upload failed" }
+                    : f));
+            }
+        }
+    };
+    const handleSelectFile = async () => {
+        try {
+            const paths = await SelectImageVideo();
+            if (paths && paths.length > 0) {
+                const timestamp = Date.now();
+                const newFiles: UploadedFile[] = paths.map((p, i) => ({
+                    id: `select-${timestamp}-${i}`,
+                    name: p.split(/[\\/]/).pop() || 'unknown',
+                    url: '',
+                    type: p.match(/\.(mp4|mkv|webm|mov)$/i) ? 'video' : 'image',
+                    status: 'uploading'
+                }));
+                setFiles(prev => [...prev, ...newFiles]);
+                for (let i = 0; i < paths.length; i++) {
+                    const path = paths[i];
+                    const fileId = newFiles[i].id;
+                    try {
+                        const result = await UploadImage(path);
+                        setFiles(prev => prev.map(f => f.id === fileId
+                            ? { ...f, status: 'done', url: result }
+                            : f));
+                    }
+                    catch (err: any) {
+                        setFiles(prev => prev.map(f => f.id === fileId
+                            ? { ...f, status: 'error', error: err.message }
+                            : f));
+                    }
+                }
+            }
+        }
+        catch (err: any) {
+            console.error("Select file failed", err);
+        }
+    };
+    const removeFile = (index: number) => {
+        setFiles(prev => prev.filter((_, i) => i !== index));
+    };
+    return (<div className={cn("relative group flex flex-col gap-2 p-4 border-2 border-dashed rounded-lg transition-colors border-muted-foreground/25 hover:border-primary/50 min-h-[14rem]", isDragging ? "border-primary bg-primary/10" : "bg-muted/5", className)} onDragOver={handleDragOver} onDragLeave={handleDragLeave} onDrop={handleDrop} onClick={(e) => {
+            if (e.target === e.currentTarget)
+                handleSelectFile();
+        }}>
+            {files.length === 0 && (<div className="absolute inset-0 flex flex-col items-center justify-center pointer-events-none opacity-50">
+                    <ImagePlus className="h-10 w-10 mb-2"/>
+                    <span className="text-sm font-medium">Drop media here or click to browse</span>
+                    <span className="text-xs text-muted-foreground mt-1">Supports PNG, JPG, MP4, MOV</span>
+                </div>)}
+
+            <div className="flex flex-col gap-2 z-10 w-full">
+                {files.map((file, i) => (<div key={i} className="flex items-center gap-3 p-2 rounded-md bg-background/80 backdrop-blur-sm border shadow-sm animate-in fade-in slide-in-from-bottom-2">
+                        {file.type === 'video' ? <FileVideo className="h-8 w-8 text-primary"/> : <ImageIcon className="h-8 w-8 text-primary"/>}
+                        
+                        <div className="flex-1 min-w-0">
+                            <div className="text-sm font-medium truncate">{file.name}</div>
+                            <div className="text-xs text-muted-foreground flex items-center gap-1">
+                                {file.status === 'uploading' && <span className="text-yellow-500 flex items-center"><Loader2 className="h-3 w-3 animate-spin mr-1"/> Uploading...</span>}
+                                {file.status === 'done' && <span className="text-green-500 flex items-center"><Check className="h-3 w-3 mr-1"/> Ready</span>}
+                                {file.status === 'error' && <span className="text-red-500">{file.error || 'Failed'}</span>}
+                            </div>
+                        </div>
+
+                        <Button variant="ghost" size="icon" className="h-8 w-8 text-muted-foreground hover:text-destructive" onClick={(e) => { e.stopPropagation(); removeFile(i); }}>
+                            <X className="h-4 w-4"/>
+                        </Button>
+                    </div>))}
+            </div>
+
+            
+            {isDragging && (<div className="absolute inset-0 flex items-center justify-center bg-background/50 rounded-lg pointer-events-none z-20">
+                    <div className="flex flex-col items-center text-primary font-medium">
+                        <Upload className="h-10 w-10 mb-2 animate-bounce"/>
+                        <span>Drop files to add</span>
+                    </div>
+                </div>)}
+        </div>);
+}
+const fileToBase64 = (file: File): Promise<string> => {
+    return new Promise((resolve, reject) => {
+        const reader = new FileReader();
+        reader.readAsDataURL(file);
+        reader.onload = () => resolve(reader.result as string);
+        reader.onerror = (error) => reject(error);
+    });
+};

frontend/src/components/FetchHistory.tsx

@@ -1,91 +1,96 @@
-import { X } from "lucide-react";
-
+import { X, Music2, Disc3, ListMusic, UserRound } from "lucide-react";
 export interface HistoryItem {
-  id: string;
-  url: string;
-  type: "track" | "album" | "playlist" | "artist";
-  name: string;
-  artist: string;
-  image: string;
-  timestamp: number;
+    id: string;
+    url: string;
+    type: "track" | "album" | "playlist" | "artist";
+    name: string;
+    artist: string;
+    image: string;
+    timestamp: number;
 }
-
 interface FetchHistoryProps {
-  history: HistoryItem[];
-  onSelect: (item: HistoryItem) => void;
-  onRemove: (id: string) => void;
+    history: HistoryItem[];
+    onSelect: (item: HistoryItem) => void;
+    onRemove: (id: string) => void;
 }
-
 export function FetchHistory({ history, onSelect, onRemove }: FetchHistoryProps) {
-  if (history.length === 0) return null;
-
-  const getTypeLabel = (type: string) => {
-    switch (type) {
-      case "track":
-        return "Track";
-      case "album":
-        return "Album";
-      case "playlist":
-        return "Playlist";
-      case "artist":
-        return "Artist";
-      default:
-        return type;
-    }
-  };
-
-  return (
-    <div className="space-y-2">
-      <span className="text-sm text-muted-foreground">Recent Fetches</span>
+    if (history.length === 0)
+        return null;
+    const getTypeLabel = (type: string) => {
+        switch (type) {
+            case "track":
+                return "Track";
+            case "album":
+                return "Album";
+            case "playlist":
+                return "Playlist";
+            case "artist":
+                return "Artist";
+            default:
+                return type;
+        }
+    };
+    const getTypeIcon = (type: string) => {
+        switch (type) {
+            case "track":
+                return Music2;
+            case "album":
+                return Disc3;
+            case "playlist":
+                return ListMusic;
+            case "artist":
+                return UserRound;
+            default:
+                return null;
+        }
+    };
+    const getTypeBadgeClass = (type: string) => {
+        switch (type) {
+            case "track":
+                return "bg-blue-500/10 text-blue-600 dark:bg-blue-500/20 dark:text-blue-400";
+            case "album":
+                return "bg-green-500/10 text-green-600 dark:bg-green-500/20 dark:text-green-400";
+            case "playlist":
+                return "bg-purple-500/10 text-purple-600 dark:bg-purple-500/20 dark:text-purple-400";
+            case "artist":
+                return "bg-orange-500/10 text-orange-600 dark:bg-orange-500/20 dark:text-orange-400";
+            default:
+                return "bg-muted text-muted-foreground";
+        }
+    };
+    return (<div className="space-y-2">
+      <span className="text-sm text-muted-foreground">{history.length === 1 ? "Recent Fetch" : "Recent Fetches"}</span>
       <div className="flex gap-2 overflow-x-auto pb-2 pt-2">
-        {history.map((item) => (
-          <div
-            key={item.id}
-            className="relative shrink-0 w-[130px] group cursor-pointer rounded-lg border bg-card hover:bg-accent transition-colors overflow-visible"
-            onClick={() => onSelect(item)}
-          >
-            <button
-              type="button"
-              className="absolute -top-1.5 -right-1.5 z-10 w-5 h-5 rounded-full bg-red-500 hover:bg-red-600 flex items-center justify-center opacity-0 group-hover:opacity-100 transition-all cursor-pointer shadow-sm"
-              onClick={(e) => {
+        {history.map((item) => (<div key={item.id} className="relative shrink-0 w-[130px] group cursor-pointer rounded-lg border bg-card hover:bg-accent transition-colors overflow-visible" onClick={() => onSelect(item)}>
+            <button type="button" className="absolute -top-1.5 -right-1.5 z-10 w-5 h-5 rounded-full bg-red-500 hover:bg-red-600 flex items-center justify-center opacity-0 group-hover:opacity-100 transition-all cursor-pointer shadow-sm" onClick={(e) => {
                 e.stopPropagation();
                 onRemove(item.id);
-              }}
-            >
-              <X className="h-3 w-3 text-red-900" strokeWidth={3} />
+            }}>
+              <X className="h-3 w-3 text-red-900" strokeWidth={3}/>
             </button>
             <div className="p-2">
               <div className="aspect-square w-full rounded-md overflow-hidden mb-2 bg-muted">
-                {item.image ? (
-                  <img
-                    src={item.image}
-                    alt={item.name}
-                    className="w-full h-full object-cover"
-                  />
-                ) : (
-                  <div className="w-full h-full flex items-center justify-center text-muted-foreground text-xs">
+                {item.image ? (<img src={item.image} alt={item.name} className="w-full h-full object-cover"/>) : (<div className="w-full h-full flex items-center justify-center text-muted-foreground text-xs">
                     No Image
-                  </div>
-                )}
+                  </div>)}
               </div>
               <div className="space-y-0.5">
                 <p className="text-xs font-medium truncate" title={item.name}>
                   {item.name}
                 </p>
-                <p
-                  className="text-xs text-muted-foreground truncate"
-                  title={item.artist}
-                >
+                <p className="text-xs text-muted-foreground truncate" title={item.artist}>
                   {item.artist}
                 </p>
-                <span className="inline-block text-[10px] px-1.5 py-0.5 rounded bg-muted text-muted-foreground">
-                  {getTypeLabel(item.type)}
-                </span>
+                {(() => {
+                const IconComponent = getTypeIcon(item.type);
+                return (<span className={`inline-flex items-center gap-1 text-[10px] px-1.5 py-0.5 rounded ${getTypeBadgeClass(item.type)}`}>
+                      {IconComponent ? <IconComponent className="h-2.5 w-2.5"/> : null}
+                      {getTypeLabel(item.type)}
+                    </span>);
+            })()}
               </div>
             </div>
-          </div>
-        ))}
+          </div>))}
       </div>
-    </div>
-  );
+    </div>);
 }

frontend/src/components/Header.tsx

@@ -1,66 +1,42 @@
 import { Badge } from "@/components/ui/badge";
-import {
-  Tooltip,
-  TooltipContent,
-  TooltipTrigger,
-} from "@/components/ui/tooltip";
+import { Tooltip, TooltipContent, TooltipTrigger, } from "@/components/ui/tooltip";
 import { openExternal } from "@/lib/utils";
 import { formatRelativeTime } from "@/lib/relative-time";
-
 interface HeaderProps {
-  version: string;
-  hasUpdate: boolean;
-  releaseDate?: string | null;
+    version: string;
+    hasUpdate: boolean;
+    releaseDate?: string | null;
 }
-
 export function Header({ version, hasUpdate, releaseDate }: HeaderProps) {
-  return (
-    <div className="relative">
+    return (<div className="relative">
       <div className="text-center space-y-2">
         <div className="flex items-center justify-center gap-3">
-          <img
-            src="/icon.svg"
-            alt="SpotiFLAC"
-            className="w-12 h-12 cursor-pointer"
-            onClick={() => window.location.reload()}
-          />
-          <h1
-            className="text-4xl font-bold cursor-pointer"
-            onClick={() => window.location.reload()}
-          >
+          <img src="/icon.svg" alt="SpotiFLAC" className="w-12 h-12 cursor-pointer" onClick={() => window.location.reload()}/>
+          <h1 className="text-4xl font-bold cursor-pointer" onClick={() => window.location.reload()}>
             SpotiFLAC
           </h1>
           <div className="relative">
             <Tooltip>
               <TooltipTrigger asChild>
                 <Badge variant="default" asChild>
-                  <button
-                    type="button"
-                    onClick={() => openExternal("https://github.com/afkarxyz/SpotiFLAC/releases")}
-                    className="cursor-pointer hover:opacity-80 transition-opacity"
-                  >
+                  <button type="button" onClick={() => openExternal("https://github.com/afkarxyz/SpotiFLAC/releases")} className="cursor-pointer hover:opacity-80 transition-opacity">
                     v{version}
                   </button>
                 </Badge>
               </TooltipTrigger>
-              {hasUpdate && releaseDate && (
-                <TooltipContent>
+              {hasUpdate && releaseDate && (<TooltipContent>
                   <p>{formatRelativeTime(releaseDate)}</p>
-                </TooltipContent>
-              )}
+                </TooltipContent>)}
             </Tooltip>
-            {hasUpdate && (
-              <span className="absolute -top-1 -right-1 flex h-3 w-3">
+            {hasUpdate && (<span className="absolute -top-1 -right-1 flex h-3 w-3">
                 <span className="animate-ping absolute inline-flex h-full w-full rounded-full bg-green-400 opacity-75"></span>
                 <span className="relative inline-flex rounded-full h-3 w-3 bg-green-500"></span>
-              </span>
-            )}
+              </span>)}
           </div>
         </div>
         <p className="text-muted-foreground">
           Get Spotify tracks in true FLAC from Tidal, Qobuz & Amazon Music — no account required.
         </p>
       </div>
-    </div>
-  );
+    </div>);
 }

frontend/src/components/HistoryPage.tsx

@@ -0,0 +1,615 @@
+import { useEffect, useState, useRef } from "react";
+import { Button } from "@/components/ui/button";
+import { Trash2, ExternalLink, Search, ArrowUpDown, History, Play, Pause, Database, CloudUpload, Music2, Disc3, ListMusic, UserRound } from "lucide-react";
+import { Badge } from "@/components/ui/badge";
+import { Input } from "@/components/ui/input";
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
+import { Dialog, DialogContent, DialogDescription, DialogFooter, DialogHeader, DialogTitle } from "@/components/ui/dialog";
+import { Pagination, PaginationContent, PaginationEllipsis, PaginationItem, PaginationLink, PaginationNext, PaginationPrevious } from "@/components/ui/pagination";
+import { GetDownloadHistory, ClearDownloadHistory, GetPreviewURL, GetFetchHistory, DeleteDownloadHistoryItem, DeleteFetchHistoryItem, ClearFetchHistoryByType } from "../../wailsjs/go/main/App";
+import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from "@/components/ui/tooltip";
+import { openExternal } from "@/lib/utils";
+const formatDate = (timestamp: number) => {
+    const date = new Date(timestamp * 1000);
+    const year = date.getFullYear();
+    const month = String(date.getMonth() + 1).padStart(2, '0');
+    const day = String(date.getDate()).padStart(2, '0');
+    const hours = String(date.getHours()).padStart(2, '0');
+    const minutes = String(date.getMinutes()).padStart(2, '0');
+    const seconds = String(date.getSeconds()).padStart(2, '0');
+    return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
+};
+interface DownloadHistoryItem {
+    id: string;
+    spotify_id: string;
+    title: string;
+    artists: string;
+    album: string;
+    duration_str: string;
+    cover_url: string;
+    quality: string;
+    format: string;
+    path: string;
+    timestamp: number;
+}
+interface FetchHistoryItem {
+    id: string;
+    url: string;
+    type: string;
+    name: string;
+    info: string;
+    image: string;
+    data: string;
+    timestamp: number;
+}
+interface HistoryPageProps {
+    onHistorySelect?: (cachedData: string) => void;
+}
+export function HistoryPage({ onHistorySelect }: HistoryPageProps) {
+    const [activeTab, setActiveTab] = useState("downloads");
+    const [downloadHistory, setDownloadHistory] = useState<DownloadHistoryItem[]>([]);
+    const [filteredDownloadHistory, setFilteredDownloadHistory] = useState<DownloadHistoryItem[]>([]);
+    const [showClearDownloadConfirm, setShowClearDownloadConfirm] = useState(false);
+    const [downloadSearchQuery, setDownloadSearchQuery] = useState("");
+    const [downloadSortBy, setDownloadSortBy] = useState("default");
+    const [downloadCurrentPage, setDownloadCurrentPage] = useState(1);
+    const [playingPreviewId, setPlayingPreviewId] = useState<string | null>(null);
+    const audioRef = useRef<HTMLAudioElement | null>(null);
+    const [fetchHistory, setFetchHistory] = useState<FetchHistoryItem[]>([]);
+    const [filteredFetchHistory, setFilteredFetchHistory] = useState<FetchHistoryItem[]>([]);
+    const [activeFetchTab, setActiveFetchTab] = useState("track");
+    const [showClearFetchConfirm, setShowClearFetchConfirm] = useState(false);
+    const [fetchSearchQuery, setFetchSearchQuery] = useState("");
+    const [fetchCurrentPage, setFetchCurrentPage] = useState(1);
+    const ITEMS_PER_PAGE = 50;
+    const fetchDownloadHistory = async () => {
+        try {
+            const items = await GetDownloadHistory();
+            setDownloadHistory(items || []);
+        }
+        catch (err) {
+            console.error("Failed to fetch download history:", err);
+        }
+    };
+    const fetchFetchHistory = async () => {
+        try {
+            const items = await GetFetchHistory();
+            setFetchHistory(items || []);
+        }
+        catch (err) {
+            console.error("Failed to fetch fetch history:", err);
+        }
+    };
+    useEffect(() => {
+        if (activeTab === "downloads") {
+            fetchDownloadHistory();
+            const interval = setInterval(fetchDownloadHistory, 5000);
+            return () => clearInterval(interval);
+        }
+        else {
+            fetchFetchHistory();
+            const interval = setInterval(fetchFetchHistory, 5000);
+            return () => clearInterval(interval);
+        }
+    }, [activeTab]);
+    useEffect(() => {
+        return () => {
+            if (audioRef.current) {
+                audioRef.current.pause();
+            }
+        };
+    }, []);
+    useEffect(() => {
+        let result = [...downloadHistory];
+        if (downloadSearchQuery) {
+            const query = downloadSearchQuery.toLowerCase();
+            result = result.filter(item => item.title.toLowerCase().includes(query) ||
+                item.artists.toLowerCase().includes(query) ||
+                item.album.toLowerCase().includes(query));
+        }
+        const parseDuration = (str: string) => {
+            const parts = str.split(':').map(Number);
+            if (parts.length === 2)
+                return parts[0] * 60 + parts[1];
+            if (parts.length === 3)
+                return parts[0] * 3600 + parts[1] * 60 + parts[2];
+            return 0;
+        };
+        result.sort((a, b) => {
+            switch (downloadSortBy) {
+                case "default":
+                case "date_desc": return b.timestamp - a.timestamp;
+                case "date_asc": return a.timestamp - b.timestamp;
+                case "title_asc": return a.title.localeCompare(b.title);
+                case "title_desc": return b.title.localeCompare(a.title);
+                case "artist_asc": return a.artists.localeCompare(b.artists);
+                case "artist_desc": return b.artists.localeCompare(a.artists);
+                case "duration_asc": return parseDuration(a.duration_str) - parseDuration(b.duration_str);
+                case "duration_desc": return parseDuration(b.duration_str) - parseDuration(a.duration_str);
+                default: return 0;
+            }
+        });
+        setFilteredDownloadHistory(result);
+    }, [downloadHistory, downloadSearchQuery, downloadSortBy]);
+    useEffect(() => {
+        setDownloadCurrentPage(1);
+    }, [downloadSearchQuery, downloadSortBy]);
+    useEffect(() => {
+        let result = [...fetchHistory];
+        if (activeFetchTab !== "all") {
+            result = result.filter(item => item.type.toLowerCase() === activeFetchTab.toLowerCase());
+        }
+        if (fetchSearchQuery) {
+            const query = fetchSearchQuery.toLowerCase();
+            result = result.filter(item => item.name.toLowerCase().includes(query) ||
+                item.info.toLowerCase().includes(query));
+        }
+        result.sort((a, b) => b.timestamp - a.timestamp);
+        setFilteredFetchHistory(result);
+    }, [fetchHistory, fetchSearchQuery, activeFetchTab]);
+    useEffect(() => {
+        setFetchCurrentPage(1);
+    }, [fetchSearchQuery, activeFetchTab]);
+    const handlePreview = async (id: string, spotifyId: string) => {
+        if (playingPreviewId === id) {
+            audioRef.current?.pause();
+            setPlayingPreviewId(null);
+            return;
+        }
+        if (audioRef.current) {
+            audioRef.current.pause();
+        }
+        try {
+            const url = await GetPreviewURL(spotifyId);
+            if (url) {
+                const audio = new Audio(url);
+                audioRef.current = audio;
+                audio.volume = 0.5;
+                audio.onended = () => setPlayingPreviewId(null);
+                audio.play();
+                setPlayingPreviewId(id);
+            }
+        }
+        catch (e) {
+            console.error("Failed to play preview:", e);
+        }
+    };
+    const handleClearDownloadHistory = async () => {
+        await ClearDownloadHistory();
+        fetchDownloadHistory();
+        setShowClearDownloadConfirm(false);
+    };
+    const handleDeleteDownloadItem = async (id: string) => {
+        await DeleteDownloadHistoryItem(id);
+        setDownloadHistory(prev => prev.filter(item => item.id !== id));
+    };
+    const handleClearFetchHistory = async () => {
+        await ClearFetchHistoryByType(activeFetchTab);
+        fetchFetchHistory();
+        setShowClearFetchConfirm(false);
+    };
+    const handleDeleteFetchItem = async (id: string, e: React.MouseEvent) => {
+        e.stopPropagation();
+        await DeleteFetchHistoryItem(id);
+        setFetchHistory(prev => prev.filter(item => item.id !== id));
+    };
+    const getPaginationPages = (current: number, total: number): (number | 'ellipsis')[] => {
+        if (total <= 10)
+            return Array.from({ length: total }, (_, i) => i + 1);
+        const pages: (number | 'ellipsis')[] = [];
+        pages.push(1);
+        if (current <= 7) {
+            for (let i = 2; i <= 10; i++)
+                pages.push(i);
+            pages.push('ellipsis');
+            pages.push(total);
+        }
+        else if (current >= total - 7) {
+            pages.push('ellipsis');
+            for (let i = total - 9; i <= total; i++)
+                pages.push(i);
+        }
+        else {
+            pages.push('ellipsis');
+            pages.push(current - 1);
+            pages.push(current);
+            pages.push(current + 1);
+            pages.push('ellipsis');
+            pages.push(total);
+        }
+        return pages;
+    };
+    const renderDownloadHistory = () => {
+        const totalPages = Math.ceil(filteredDownloadHistory.length / ITEMS_PER_PAGE);
+        const startIndex = (downloadCurrentPage - 1) * ITEMS_PER_PAGE;
+        const paginated = filteredDownloadHistory.slice(startIndex, startIndex + ITEMS_PER_PAGE);
+        return (<div className="space-y-6">
+                <div className="flex flex-col gap-4">
+                     <div className="flex items-center justify-between">
+                        <div className="flex items-center gap-2">
+                             <h2 className="text-xl font-bold tracking-tight">Downloads</h2>
+                             {downloadHistory.length > 0 && (<Badge variant="secondary" className="font-mono">
+                                    {downloadHistory.length.toLocaleString('en-US')}
+                                </Badge>)}
+                        </div>
+                        <Button variant="outline" size="sm" onClick={() => setShowClearDownloadConfirm(true)} disabled={downloadHistory.length === 0} className="cursor-pointer gap-2">
+                             <Trash2 className="h-4 w-4"/> Clear All
+                        </Button>
+                    </div>
+
+                     <div className="flex items-center gap-2">
+                        <div className="relative flex-1">
+                            <Search className="absolute left-2 top-2.5 h-4 w-4 text-muted-foreground"/>
+                            <Input placeholder="Search downloads..." value={downloadSearchQuery} onChange={(e) => setDownloadSearchQuery(e.target.value)} className="pl-8 h-9"/>
+                        </div>
+                        <Select value={downloadSortBy} onValueChange={setDownloadSortBy}>
+                            <SelectTrigger className="w-[180px] h-9">
+                                <ArrowUpDown className="mr-2 h-4 w-4"/>
+                                <SelectValue placeholder="Sort by"/>
+                            </SelectTrigger>
+                            <SelectContent>
+                                <SelectItem value="default">Default</SelectItem>
+                                <SelectItem value="date_desc">Date (Newest)</SelectItem>
+                                <SelectItem value="date_asc">Date (Oldest)</SelectItem>
+                                <SelectItem value="title_asc">Title (A-Z)</SelectItem>
+                                <SelectItem value="title_desc">Title (Z-A)</SelectItem>
+                                <SelectItem value="artist_asc">Artist (A-Z)</SelectItem>
+                                <SelectItem value="artist_desc">Artist (Z-A)</SelectItem>
+                                <SelectItem value="duration_asc">Duration (Short)</SelectItem>
+                                <SelectItem value="duration_desc">Duration (Long)</SelectItem>
+                            </SelectContent>
+                        </Select>
+                    </div>
+                </div>
+
+                 <div className="rounded-md border overflow-hidden">
+                    {paginated.length === 0 ? (<div className="flex flex-col items-center justify-center p-16 text-center text-muted-foreground gap-3">
+                            <div className="rounded-full bg-muted/50 p-4 ring-8 ring-muted/20">
+                                <History className="h-10 w-10 opacity-40"/>
+                            </div>
+                            <div className="space-y-1">
+                                <p className="font-medium text-foreground/80">No download history</p>
+                                <p className="text-sm">Your downloaded tracks will appear here.</p>
+                            </div>
+                        </div>) : (<table className="w-full table-fixed">
+                             <thead>
+                                <tr className="border-b bg-muted/50">
+                                    <th className="h-10 px-4 text-left align-middle font-medium text-muted-foreground w-12 text-xs uppercase">#</th>
+                                    <th className="h-10 px-4 text-left align-middle font-medium text-muted-foreground text-xs uppercase">Title</th>
+                                    <th className="h-10 px-4 text-left align-middle font-medium text-muted-foreground hidden md:table-cell text-xs uppercase w-1/4">Album</th>
+                                    <th className="h-10 px-4 text-left align-middle font-medium text-muted-foreground hidden lg:table-cell w-32 text-xs uppercase">Format</th>
+                                    <th className="h-10 px-4 text-left align-middle font-medium text-muted-foreground hidden xl:table-cell w-16 text-xs uppercase text-nowrap">Dur</th>
+                                    <th className="h-10 px-4 text-left align-middle font-medium text-muted-foreground hidden md:table-cell w-36 text-xs uppercase text-nowrap">Downloaded At</th>
+                                    <th className="h-10 px-4 text-center align-middle font-medium text-muted-foreground w-32 text-xs uppercase text-nowrap">Actions</th>
+                                </tr>
+                            </thead>
+                            <tbody>
+                                {paginated.map((item, index) => (<tr key={item.id} className="border-b transition-colors hover:bg-muted/50">
+                                        <td className="p-3 align-middle text-sm text-muted-foreground text-left font-mono">
+                                            {startIndex + index + 1}
+                                        </td>
+                                        <td className="p-3 align-middle min-w-0">
+                                            <div className="flex items-center gap-3 min-w-0">
+                                                <img src={item.cover_url || "https://placehold.co/300?text=No+Cover"} alt={item.album} className="h-10 w-10 rounded shrink-0 bg-secondary object-cover" onError={(e) => { (e.target as HTMLImageElement).src = "https://placehold.co/300?text=No+Cover"; }}/>
+                                                <div className="flex flex-col min-w-0 flex-1">
+                                                    <span className="font-medium text-sm truncate">{item.title}</span>
+                                                    <span className="text-xs text-muted-foreground truncate">{item.artists}</span>
+                                                </div>
+                                            </div>
+                                        </td>
+                                        <td className="p-3 align-middle text-sm text-muted-foreground hidden md:table-cell">
+                                            <div className="truncate">{item.album}</div>
+                                        </td>
+                                         <td className="p-3 align-middle text-left hidden lg:table-cell">
+                                            <div className="flex flex-col items-start gap-1">
+                                                <span className="text-xs font-bold text-foreground">
+                                                    {['HI_RES_LOSSLESS', 'LOSSLESS'].includes(item.format) ? 'FLAC' : item.format}
+                                                </span>
+                                                {item.quality && <span className="text-[11px] text-muted-foreground leading-none whitespace-nowrap">{item.quality}</span>}
+                                            </div>
+                                        </td>
+                                        <td className="p-3 align-middle text-sm text-muted-foreground text-left hidden xl:table-cell font-mono">
+                                            {item.duration_str}
+                                        </td>
+                                         <td className="p-3 align-middle text-xs text-muted-foreground hidden md:table-cell whitespace-nowrap">
+                                            <div className="flex flex-col">
+                                                <span>{formatDate(item.timestamp).split(' ')[0]}</span>
+                                                <span className="text-[10px] text-muted-foreground">{formatDate(item.timestamp).split(' ')[1]}</span>
+                                            </div>
+                                        </td>
+                                        <td className="p-3 align-middle text-center">
+                                            <div className="flex items-center justify-center gap-1">
+                                                <TooltipProvider>
+                                                    <Tooltip delayDuration={0}>
+                                                        <TooltipTrigger asChild>
+                                                            <Button variant="ghost" size="icon" className="h-8 w-8 cursor-pointer" onClick={() => handlePreview(item.id, item.spotify_id)} disabled={!item.spotify_id}>
+                                                                {playingPreviewId === item.id ? <Pause className="h-4 w-4"/> : <Play className="h-4 w-4"/>}
+                                                            </Button>
+                                                        </TooltipTrigger>
+                                                        <TooltipContent>
+                                                            <p>{playingPreviewId === item.id ? "Pause Preview" : "Play Preview"}</p>
+                                                        </TooltipContent>
+                                                    </Tooltip>
+                                                </TooltipProvider>
+
+                                                <TooltipProvider>
+                                                    <Tooltip delayDuration={0}>
+                                                        <TooltipTrigger asChild>
+                                                            <Button variant="ghost" size="icon" className="h-8 w-8 cursor-pointer" onClick={() => openExternal(`https://open.spotify.com/track/${item.spotify_id}`)}>
+                                                                <ExternalLink className="h-4 w-4"/>
+                                                            </Button>
+                                                        </TooltipTrigger>
+                                                        <TooltipContent>
+                                                            <p>Open in Spotify</p>
+                                                        </TooltipContent>
+                                                    </Tooltip>
+                                                </TooltipProvider>
+
+                                                <TooltipProvider>
+                                                    <Tooltip delayDuration={0}>
+                                                        <TooltipTrigger asChild>
+                                                            <Button variant="ghost" size="icon" className="h-8 w-8 cursor-pointer text-destructive hover:text-destructive" onClick={() => handleDeleteDownloadItem(item.id)}>
+                                                                <Trash2 className="h-4 w-4"/>
+                                                            </Button>
+                                                        </TooltipTrigger>
+                                                        <TooltipContent>
+                                                            <p>Delete</p>
+                                                        </TooltipContent>
+                                                    </Tooltip>
+                                                </TooltipProvider>
+                                            </div>
+                                        </td>
+                                    </tr>))}
+                            </tbody>
+                        </table>)}
+                 </div>
+
+                 {totalPages > 1 && (<Pagination>
+                        <PaginationContent>
+                            <PaginationItem>
+                                <PaginationPrevious href="#" onClick={(e) => {
+                    e.preventDefault();
+                    if (downloadCurrentPage > 1)
+                        setDownloadCurrentPage(downloadCurrentPage - 1);
+                }} className={downloadCurrentPage === 1 ? "pointer-events-none opacity-50" : "cursor-pointer"}/>
+                            </PaginationItem>
+                            
+                            {getPaginationPages(downloadCurrentPage, totalPages).map((page, index) => (page === 'ellipsis' ? (<PaginationItem key={`ellipsis-${index}`}>
+                                        <PaginationEllipsis />
+                                    </PaginationItem>) : (<PaginationItem key={page}>
+                                        <PaginationLink href="#" onClick={(e) => {
+                        e.preventDefault();
+                        setDownloadCurrentPage(page as number);
+                    }} isActive={downloadCurrentPage === page} className="cursor-pointer">
+                                            {page}
+                                        </PaginationLink>
+                                    </PaginationItem>)))}
+
+                            <PaginationItem>
+                                <PaginationNext href="#" onClick={(e) => {
+                    e.preventDefault();
+                    if (downloadCurrentPage < totalPages)
+                        setDownloadCurrentPage(downloadCurrentPage + 1);
+                }} className={downloadCurrentPage === totalPages ? "pointer-events-none opacity-50" : "cursor-pointer"}/>
+                            </PaginationItem>
+                        </PaginationContent>
+                    </Pagination>)}
+            </div>);
+    };
+    const renderFetchHistory = () => {
+        const totalPages = Math.ceil(filteredFetchHistory.length / ITEMS_PER_PAGE);
+        const startIndex = (fetchCurrentPage - 1) * ITEMS_PER_PAGE;
+        const paginated = filteredFetchHistory.slice(startIndex, startIndex + ITEMS_PER_PAGE);
+        return (<div className="space-y-6">
+                <div className="flex flex-col gap-4">
+                     <div className="flex items-center justify-between">
+                        <div className="flex items-center gap-2">
+                             <h2 className="text-xl font-bold tracking-tight">Fetches</h2>
+                             {fetchHistory.length > 0 && (<Badge variant="secondary" className="font-mono">
+                                    {fetchHistory.length.toLocaleString('en-US')}
+                                </Badge>)}
+                        </div>
+                        <Button variant="outline" size="sm" onClick={() => setShowClearFetchConfirm(true)} disabled={fetchHistory.length === 0} className="cursor-pointer gap-2">
+                             <Trash2 className="h-4 w-4"/> Clear All
+                        </Button>
+                    </div>
+
+                    
+                    <div className="flex flex-col gap-4">
+                        <div className="flex gap-2 border-b shrink-0">
+                            <Button variant={activeFetchTab === "track" ? "default" : "ghost"} size="sm" onClick={() => setActiveFetchTab("track")} className="rounded-b-none">
+                                <Music2 className="h-4 w-4"/>
+                                Tracks
+                            </Button>
+                            <Button variant={activeFetchTab === "album" ? "default" : "ghost"} size="sm" onClick={() => setActiveFetchTab("album")} className="rounded-b-none">
+                                <Disc3 className="h-4 w-4"/>
+                                Albums
+                            </Button>
+                            <Button variant={activeFetchTab === "playlist" ? "default" : "ghost"} size="sm" onClick={() => setActiveFetchTab("playlist")} className="rounded-b-none">
+                                <ListMusic className="h-4 w-4"/>
+                                Playlists
+                            </Button>
+                            <Button variant={activeFetchTab === "artist" ? "default" : "ghost"} size="sm" onClick={() => setActiveFetchTab("artist")} className="rounded-b-none">
+                                <UserRound className="h-4 w-4"/>
+                                Artists
+                            </Button>
+                        </div>
+
+                        <div className="flex items-center gap-2">
+                            <div className="relative flex-1">
+                                <Search className="absolute left-2 top-2.5 h-4 w-4 text-muted-foreground"/>
+                                <Input placeholder="Search fetch history..." value={fetchSearchQuery} onChange={(e) => setFetchSearchQuery(e.target.value)} className="pl-8 h-9"/>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+
+                <div className="rounded-md border overflow-hidden">
+                   {paginated.length === 0 ? (<div className="flex flex-col items-center justify-center py-12 text-center text-muted-foreground gap-3"> 
+                            <Database className="h-10 w-10 opacity-40"/>
+                            <div className="space-y-1">
+                                <p className="font-medium text-foreground/80">No fetch history</p>
+                                <p className="text-sm">Fetched metadata will appear here.</p>
+                            </div>
+                       </div>) : (<table className="w-full table-fixed">
+                            <thead>
+                                <tr className="border-b bg-muted/50">
+                                    <th className="h-10 px-4 text-left align-middle font-medium text-muted-foreground w-12 text-xs uppercase">#</th>
+                                    <th className="h-10 px-4 text-left align-middle font-medium text-muted-foreground text-xs uppercase w-1/3">
+                                        {activeFetchTab === 'artist' ? 'Name' : 'Title'}
+                                    </th>
+                                    <th className="h-10 px-4 text-left align-middle font-medium text-muted-foreground hidden md:table-cell text-xs uppercase">Details</th>
+                                    <th className="h-10 px-4 text-left align-middle font-medium text-muted-foreground hidden lg:table-cell w-40 text-xs uppercase text-nowrap">Fetched At</th>
+                                    <th className="h-10 px-4 text-center align-middle font-medium text-muted-foreground w-32 text-xs uppercase text-nowrap">Actions</th>
+                                </tr>
+                            </thead>
+                            <tbody>
+                                {paginated.map((item, index) => (<tr key={item.id} className="border-b transition-colors hover:bg-muted/50">
+                                        <td className="p-3 align-middle text-sm text-muted-foreground text-left font-mono">
+                                            {startIndex + index + 1}
+                                        </td>
+                                        <td className="p-3 align-middle min-w-0">
+                                            <div className="flex items-center gap-3 min-w-0">
+                                                <div className="h-10 w-10 rounded shrink-0 bg-secondary overflow-hidden">
+                                                    {item.image ? (<img src={item.image} alt={item.name} className="h-full w-full object-cover"/>) : (<div className="h-full w-full flex items-center justify-center text-xs text-muted-foreground font-medium bg-muted">
+                                                            {item.type.slice(0, 2).toUpperCase()}
+                                                        </div>)}
+                                                </div>
+                                                <span className="font-medium text-sm truncate">{item.name}</span>
+                                            </div>
+                                        </td>
+                                        <td className="p-3 align-middle text-sm text-muted-foreground hidden md:table-cell">
+                                            <div className="truncate">{item.info}</div>
+                                        </td>
+                                        <td className="p-3 align-middle text-xs text-muted-foreground hidden lg:table-cell whitespace-nowrap">
+                                            <div className="flex flex-col">
+                                                <span>{formatDate(item.timestamp).split(' ')[0]}</span>
+                                                <span className="text-[10px] text-muted-foreground">{formatDate(item.timestamp).split(' ')[1]}</span>
+                                            </div>
+                                        </td>
+                                        <td className="p-3 align-middle text-center">
+                                            <div className="flex items-center justify-center gap-1">
+                                                <TooltipProvider>
+                                                    <Tooltip delayDuration={0}>
+                                                        <TooltipTrigger asChild>
+                                                            <Button variant="ghost" size="icon" className="h-8 w-8 cursor-pointer" onClick={() => onHistorySelect?.(item.data)}>
+                                                                <CloudUpload className="h-4 w-4"/>
+                                                            </Button>
+                                                        </TooltipTrigger>
+                                                        <TooltipContent>
+                                                            <p>Load</p>
+                                                        </TooltipContent>
+                                                    </Tooltip>
+                                                </TooltipProvider>
+
+                                                <TooltipProvider>
+                                                    <Tooltip delayDuration={0}>
+                                                        <TooltipTrigger asChild>
+                                                            <Button variant="ghost" size="icon" className="h-8 w-8 cursor-pointer text-destructive hover:text-destructive" onClick={(e) => handleDeleteFetchItem(item.id, e)}>
+                                                                <Trash2 className="h-4 w-4"/>
+                                                            </Button>
+                                                        </TooltipTrigger>
+                                                        <TooltipContent>
+                                                            <p>Delete</p>
+                                                        </TooltipContent>
+                                                    </Tooltip>
+                                                </TooltipProvider>
+                                            </div>
+                                        </td>
+                                    </tr>))}
+                            </tbody>
+                       </table>)}
+                </div>
+
+                 {totalPages > 1 && (<Pagination>
+                        <PaginationContent>
+                            <PaginationItem>
+                                <PaginationPrevious href="#" onClick={(e) => {
+                    e.preventDefault();
+                    if (fetchCurrentPage > 1)
+                        setFetchCurrentPage(fetchCurrentPage - 1);
+                }} className={fetchCurrentPage === 1 ? "pointer-events-none opacity-50" : "cursor-pointer"}/>
+                            </PaginationItem>
+                            
+                            {getPaginationPages(fetchCurrentPage, totalPages).map((page, index) => (page === 'ellipsis' ? (<PaginationItem key={`ellipsis-${index}`}>
+                                        <PaginationEllipsis />
+                                    </PaginationItem>) : (<PaginationItem key={page}>
+                                        <PaginationLink href="#" onClick={(e) => {
+                        e.preventDefault();
+                        setFetchCurrentPage(page as number);
+                    }} isActive={fetchCurrentPage === page} className="cursor-pointer">
+                                            {page}
+                                        </PaginationLink>
+                                    </PaginationItem>)))}
+
+                            <PaginationItem>
+                                <PaginationNext href="#" onClick={(e) => {
+                    e.preventDefault();
+                    if (fetchCurrentPage < totalPages)
+                        setFetchCurrentPage(fetchCurrentPage + 1);
+                }} className={fetchCurrentPage === totalPages ? "pointer-events-none opacity-50" : "cursor-pointer"}/>
+                            </PaginationItem>
+                        </PaginationContent>
+                    </Pagination>)}
+            </div>);
+    };
+    return (<div className="space-y-6">
+            <div className="flex items-center gap-4">
+                <h1 className="text-2xl font-bold">History</h1>
+            </div>
+
+            <div className="border-b">
+                <div className="flex gap-6">
+                    <button onClick={() => setActiveTab("downloads")} className={`pb-3 text-sm font-medium transition-colors border-b-2 -mb-px hover:text-foreground ${activeTab === "downloads" ? "border-primary text-foreground" : "border-transparent text-muted-foreground"}`}>
+                        Downloads
+                    </button>
+                    <button onClick={() => setActiveTab("fetches")} className={`pb-3 text-sm font-medium transition-colors border-b-2 -mb-px hover:text-foreground ${activeTab === "fetches" ? "border-primary text-foreground" : "border-transparent text-muted-foreground"}`}>
+                        Fetches
+                    </button>
+                </div>
+            </div>
+
+            {activeTab === "downloads" && (<div className="mt-6">
+                    {renderDownloadHistory()}
+                </div>)}
+
+            {activeTab === "fetches" && (<div className="mt-6">
+                    {renderFetchHistory()}
+                </div>)}
+
+            <Dialog open={showClearDownloadConfirm} onOpenChange={setShowClearDownloadConfirm}>
+                <DialogContent className="max-w-md [&>button]:hidden">
+                    <DialogHeader>
+                        <DialogTitle>Clear Download History?</DialogTitle>
+                        <DialogDescription>
+                            This will remove all entries from your download history. This action cannot be undone.
+                            Note: The actual downloaded files will NOT be deleted.
+                        </DialogDescription>
+                    </DialogHeader>
+                    <DialogFooter>
+                        <Button variant="outline" onClick={() => setShowClearDownloadConfirm(false)} className="cursor-pointer">Cancel</Button>
+                        <Button variant="destructive" onClick={handleClearDownloadHistory} className="cursor-pointer">
+                            Clear History
+                        </Button>
+                    </DialogFooter>
+                </DialogContent>
+            </Dialog>
+
+            <Dialog open={showClearFetchConfirm} onOpenChange={setShowClearFetchConfirm}>
+                <DialogContent className="max-w-md [&>button]:hidden">
+                    <DialogHeader>
+                        <DialogTitle>Clear {activeFetchTab.charAt(0).toUpperCase() + activeFetchTab.slice(1)} History?</DialogTitle>
+                        <DialogDescription>
+                            This will remove all {activeFetchTab} entries from your fetch history cache.
+                        </DialogDescription>
+                    </DialogHeader>
+                    <DialogFooter>
+                        <Button variant="outline" onClick={() => setShowClearFetchConfirm(false)} className="cursor-pointer">Cancel</Button>
+                        <Button variant="destructive" onClick={handleClearFetchHistory} className="cursor-pointer">
+                            Clear History
+                        </Button>
+                    </DialogFooter>
+                </DialogContent>
+            </Dialog>
+        </div>);
+}

frontend/src/components/PlatformIcons.tsx

@@ -1,22 +1,18 @@
-// Platform Icons for streaming services
-
-export const TidalIcon = ({ className = "w-4 h-4" }: { className?: string }) => (
-  <svg viewBox="0 0 24 24" className={`${className} fill-current`}>
+export const TidalIcon = ({ className = "w-4 h-4" }: {
+    className?: string;
+}) => (<svg viewBox="0 0 24 24" className={`${className} fill-current`}>
     <path d="M4.022 4.5 0 8.516l3.997 3.99 3.997-3.984L4.022 4.5Zm7.956 0L7.994 8.522l4.003 3.984L16 8.484 11.978 4.5Zm8.007 0L24 8.528l-4.003 3.978L16 8.484 19.985 4.5Z"></path>
     <path d="m8.012 16.534 3.991 3.966L16 16.49l-4.003-3.984-3.985 4.028Z"></path>
-  </svg>
-);
-
-export const QobuzIcon = ({ className = "w-4 h-4" }: { className?: string }) => (
-  <svg viewBox="0 0 24 24" className={`${className} fill-current`}>
+  </svg>);
+export const QobuzIcon = ({ className = "w-4 h-4" }: {
+    className?: string;
+}) => (<svg viewBox="0 0 24 24" className={`${className} fill-current`}>
     <path d="M21.744 9.815C19.836 1.261 8.393-1 3.55 6.64-.618 13.214 4 22 11.988 22c2.387 0 4.63-.83 6.394-2.304l2.252 2.252 1.224-1.224-2.252-2.253c1.983-2.407 2.823-5.586 2.138-8.656Zm-3.508 7.297L16.4 15.275c-.786-.787-2.017.432-1.224 1.225L17 18.326C10.29 23.656.5 16 5.16 7.667c3.502-6.264 13.172-4.348 14.707 2.574.529 2.385-.06 4.987-1.63 6.87Z"></path>
     <path d="M13.4 8.684a3.59 3.59 0 0 0-4.712 1.9 3.59 3.59 0 0 0 1.9 4.712 3.594 3.594 0 0 0 4.711-1.89 3.598 3.598 0 0 0-1.9-4.722Zm-.737 3.591a.727.727 0 0 1-.965.384.727.727 0 0 1-.384-.965.727.727 0 0 1 .965-.384.73.73 0 0 1 .384.965Z"></path>
-  </svg>
-);
-
-export const AmazonIcon = ({ className = "w-4 h-4" }: { className?: string }) => (
-  <svg viewBox="0 0 24 24" className={`${className} fill-current`}>
+  </svg>);
+export const AmazonIcon = ({ className = "w-4 h-4" }: {
+    className?: string;
+}) => (<svg viewBox="0 0 24 24" className={`${className} fill-current`}>
     <path fillRule="evenodd" d="M15.62 11.13c-.15.1-.37.18-.64.18-.42 0-.82-.05-1.21-.18l-.22-.04c-.08 0-.1.04-.1.14v.25c0 .08.02.12.05.17.02.03.07.08.15.1.4.18.84.25 1.33.25.52 0 .91-.12 1.24-.37.32-.25.47-.57.47-.99 0-.3-.08-.52-.23-.72-.15-.17-.4-.34-.74-.47l-.7-.27c-.26-.1-.46-.2-.53-.3a.47.47 0 0 1-.15-.36c0-.38.27-.57.84-.57.32 0 .64.05.94.15l.2.04c.07 0 .12-.04.12-.14v-.25c0-.08-.03-.12-.05-.17-.03-.05-.08-.08-.15-.1-.37-.13-.74-.2-1.11-.2-.47 0-.87.12-1.16.35-.3.22-.45.54-.45.91 0 .57.32.99.97 1.24l.74.27c.24.1.4.17.5.27.09.1.12.2.12.35 0 .2-.08.37-.23.46Zm-3.88-3.55v3.28c-.42.28-.84.42-1.26.42-.27 0-.47-.07-.6-.22-.11-.15-.16-.37-.16-.7V7.59c0-.13-.05-.18-.18-.18h-.52c-.12 0-.17.05-.17.18v3.06c0 .42.1.77.32.99.22.22.55.35.97.35.56 0 1.13-.2 1.68-.6l.05.3c0 .07.02.1.07.12.02.03.07.03.15.03h.37c.12 0 .17-.05.17-.18V7.58c0-.13-.05-.18-.17-.18h-.52c-.15 0-.2.08-.2.18Zm-4.69 4.27h.52c.12 0 .17-.05.17-.17v-3.1c0-.41-.1-.73-.32-.95a1.25 1.25 0 0 0-.94-.35c-.57 0-1.16.2-1.73.62-.2-.42-.57-.62-1.11-.62-.55 0-1.1.2-1.64.57l-.04-.27c0-.08-.03-.1-.08-.13-.02-.02-.07-.02-.12-.02h-.4c-.12 0-.17.05-.17.17v4.1c0 .13.05.18.17.18h.52c.12 0 .17-.05.17-.18V8.37c.42-.25.84-.4 1.29-.4.25 0 .42.08.52.22.1.15.17.35.17.65v2.84c0 .12.05.17.17.17h.52c.13 0 .18-.05.18-.17V8.37c.44-.27.86-.4 1.28-.4.25 0 .42.08.52.22.1.15.17.35.17.65v2.84c0 .12.05.17.18.17Zm13.47 3.29a21.8 21.8 0 0 1-8.3 1.7c-3.96 0-7.8-1.08-10.88-2.89a.35.35 0 0 0-.15-.05c-.17 0-.27.2-.1.37a16.11 16.11 0 0 0 10.87 4.16c3.02 0 6.5-.94 8.9-2.72.42-.3.08-.74-.34-.57Zm-.08-6.74c.22-.26.57-.38 1.06-.38.25 0 .5.03.72.1l.15.02c.07 0 .12-.04.12-.17v-.25c0-.07-.02-.14-.05-.17a.54.54 0 0 0-.12-.1c-.32-.07-.64-.15-.94-.15-.7 0-1.21.2-1.6.62-.38.4-.57 1-.57 1.73 0 .74.17 1.31.54 1.7.37.4.89.6 1.58.6.37 0 .72-.05.99-.17.07-.03.12-.05.15-.1.02-.03.02-.1.02-.17v-.25c0-.13-.05-.17-.12-.17-.03 0-.07 0-.12.02-.28.07-.55.12-.8.12-.46 0-.81-.12-1.03-.37-.23-.24-.32-.64-.32-1.16v-.12c.02-.55.12-.94.34-1.19Z" clipRule="evenodd"></path>
     <path fillRule="evenodd" d="M21.55 17.46c1.29-1.09 1.64-3.33 1.36-3.68-.12-.15-.71-.3-1.45-.3-.8 0-1.73.18-2.45.67-.22.15-.17.35.05.32.76-.1 2.5-.3 2.82.1.3.4-.35 2.03-.65 2.74-.07.23.1.3.32.15ZM18.12 7.4h-.52c-.12 0-.17.05-.17.18v4.1c0 .12.05.17.17.17h.52c.12 0 .17-.05.17-.17v-4.1c0-.1-.05-.18-.17-.18Zm.15-1.68a.58.58 0 0 0-.42-.15c-.18 0-.3.05-.4.15a.5.5 0 0 0-.15.37c0 .15.05.3.15.37.1.1.22.15.4.15.17 0 .3-.05.4-.15a.5.5 0 0 0 .14-.37c0-.15-.02-.3-.12-.37Z" clipRule="evenodd"></path>
-  </svg>
-);
+  </svg>);

frontend/src/components/PlaylistInfo.tsx

@@ -1,266 +1,156 @@
 import { Button } from "@/components/ui/button";
 import { Card, CardContent } from "@/components/ui/card";
-import { Download, FolderOpen, ImageDown, FileText } from "lucide-react";
+import { Download, FolderOpen, ImageDown, FileText, XCircle } from "lucide-react";
 import { Spinner } from "@/components/ui/spinner";
 import { Tooltip, TooltipContent, TooltipTrigger } from "@/components/ui/tooltip";
 import { SearchAndSort } from "./SearchAndSort";
 import { TrackList } from "./TrackList";
 import { DownloadProgress } from "./DownloadProgress";
 import type { TrackMetadata, TrackAvailability } from "@/types/api";
-
 interface PlaylistInfoProps {
-  playlistInfo: {
-    owner: {
-      name: string;
-      display_name: string;
-      images: string;
+    playlistInfo: {
+        owner: {
+            name: string;
+            display_name: string;
+            images: string;
+        };
+        tracks: {
+            total: number;
+        };
+        followers: {
+            total: number;
+        };
+        cover?: string;
+        description?: string;
     };
-    tracks: {
-      total: number;
-    };
-    followers: {
-      total: number;
-    };
-  };
-  trackList: TrackMetadata[];
-  searchQuery: string;
-  sortBy: string;
-  selectedTracks: string[];
-  downloadedTracks: Set<string>;
-  failedTracks: Set<string>;
-  skippedTracks: Set<string>;
-  downloadingTrack: string | null;
-  isDownloading: boolean;
-  bulkDownloadType: "all" | "selected" | null;
-  downloadProgress: number;
-  currentDownloadInfo: { name: string; artists: string } | null;
-  currentPage: number;
-  itemsPerPage: number;
-  // Lyrics props
-  downloadedLyrics?: Set<string>;
-  failedLyrics?: Set<string>;
-  skippedLyrics?: Set<string>;
-  downloadingLyricsTrack?: string | null;
-  // Availability props
-  checkingAvailabilityTrack?: string | null;
-  availabilityMap?: Map<string, TrackAvailability>;
-  // Cover props
-  downloadedCovers?: Set<string>;
-  failedCovers?: Set<string>;
-  skippedCovers?: Set<string>;
-  downloadingCoverTrack?: string | null;
-  isBulkDownloadingCovers?: boolean;
-  isBulkDownloadingLyrics?: boolean;
-  onSearchChange: (value: string) => void;
-  onSortChange: (value: string) => void;
-  onToggleTrack: (isrc: string) => void;
-  onToggleSelectAll: (tracks: TrackMetadata[]) => void;
-  onDownloadTrack: (isrc: string, name: string, artists: string, albumName: string, spotifyId?: string, folderName?: string, durationMs?: number, position?: number, albumArtist?: string, releaseDate?: string, coverUrl?: string, spotifyTrackNumber?: number, spotifyDiscNumber?: number, spotifyTotalTracks?: number) => void;
-  onDownloadLyrics?: (spotifyId: string, name: string, artists: string, albumName: string, folderName?: string, isArtistDiscography?: boolean, position?: number, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
-  onDownloadCover?: (coverUrl: string, trackName: string, artistName: string, albumName: string, folderName?: string, isArtistDiscography?: boolean, position?: number, trackId?: string, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
-  onCheckAvailability?: (spotifyId: string) => void;
-  onDownloadAllLyrics?: () => void;
-  onDownloadAllCovers?: () => void;
-  onDownloadAll: () => void;
-  onDownloadSelected: () => void;
-  onStopDownload: () => void;
-  onOpenFolder: () => void;
-  onPageChange: (page: number) => void;
-  onAlbumClick: (album: { id: string; name: string; external_urls: string }) => void;
-  onArtistClick: (artist: { id: string; name: string; external_urls: string }) => void;
-  onTrackClick: (track: TrackMetadata) => void;
+    trackList: TrackMetadata[];
+    searchQuery: string;
+    sortBy: string;
+    selectedTracks: string[];
+    downloadedTracks: Set<string>;
+    failedTracks: Set<string>;
+    skippedTracks: Set<string>;
+    downloadingTrack: string | null;
+    isDownloading: boolean;
+    bulkDownloadType: "all" | "selected" | null;
+    downloadProgress: number;
+    currentDownloadInfo: {
+        name: string;
+        artists: string;
+    } | null;
+    currentPage: number;
+    itemsPerPage: number;
+    downloadedLyrics?: Set<string>;
+    failedLyrics?: Set<string>;
+    skippedLyrics?: Set<string>;
+    downloadingLyricsTrack?: string | null;
+    checkingAvailabilityTrack?: string | null;
+    availabilityMap?: Map<string, TrackAvailability>;
+    downloadedCovers?: Set<string>;
+    failedCovers?: Set<string>;
+    skippedCovers?: Set<string>;
+    downloadingCoverTrack?: string | null;
+    isBulkDownloadingCovers?: boolean;
+    isBulkDownloadingLyrics?: boolean;
+    onSearchChange: (value: string) => void;
+    onSortChange: (value: string) => void;
+    onToggleTrack: (id: string) => void;
+    onToggleSelectAll: (tracks: TrackMetadata[]) => void;
+    onDownloadTrack: (id: string, name: string, artists: string, albumName: string, spotifyId?: string, folderName?: string, durationMs?: number, position?: number, albumArtist?: string, releaseDate?: string, coverUrl?: string, spotifyTrackNumber?: number, spotifyDiscNumber?: number, spotifyTotalTracks?: number, spotifyTotalDiscs?: number, copyright?: string, publisher?: string) => void;
+    onDownloadLyrics?: (spotifyId: string, name: string, artists: string, albumName: string, folderName?: string, isArtistDiscography?: boolean, position?: number, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
+    onDownloadCover?: (coverUrl: string, trackName: string, artistName: string, albumName: string, folderName?: string, isArtistDiscography?: boolean, position?: number, trackId?: string, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
+    onCheckAvailability?: (spotifyId: string) => void;
+    onDownloadAllLyrics?: () => void;
+    onDownloadAllCovers?: () => void;
+    onDownloadAll: () => void;
+    onDownloadSelected: () => void;
+    onStopDownload: () => void;
+    onOpenFolder: () => void;
+    onPageChange: (page: number) => void;
+    onAlbumClick: (album: {
+        id: string;
+        name: string;
+        external_urls: string;
+    }) => void;
+    onArtistClick: (artist: {
+        id: string;
+        name: string;
+        external_urls: string;
+    }) => void;
+    onTrackClick: (track: TrackMetadata) => void;
+    onBack?: () => void;
 }
-
-export function PlaylistInfo({
-  playlistInfo,
-  trackList,
-  searchQuery,
-  sortBy,
-  selectedTracks,
-  downloadedTracks,
-  failedTracks,
-  skippedTracks,
-  downloadingTrack,
-  isDownloading,
-  bulkDownloadType,
-  downloadProgress,
-  currentDownloadInfo,
-  currentPage,
-  itemsPerPage,
-  downloadedLyrics,
-  failedLyrics,
-  skippedLyrics,
-  downloadingLyricsTrack,
-  checkingAvailabilityTrack,
-  availabilityMap,
-  downloadedCovers,
-  failedCovers,
-  skippedCovers,
-  downloadingCoverTrack,
-  isBulkDownloadingCovers,
-  isBulkDownloadingLyrics,
-  onSearchChange,
-  onSortChange,
-  onToggleTrack,
-  onToggleSelectAll,
-  onDownloadTrack,
-  onDownloadLyrics,
-  onDownloadCover,
-  onCheckAvailability,
-  onDownloadAllLyrics,
-  onDownloadAllCovers,
-  onDownloadAll,
-  onDownloadSelected,
-  onStopDownload,
-  onOpenFolder,
-  onPageChange,
-  onAlbumClick,
-  onArtistClick,
-  onTrackClick,
-}: PlaylistInfoProps) {
-  return (
-    <div className="space-y-6">
-      <Card>
+export function PlaylistInfo({ playlistInfo, trackList, searchQuery, sortBy, selectedTracks, downloadedTracks, failedTracks, skippedTracks, downloadingTrack, isDownloading, bulkDownloadType, downloadProgress, currentDownloadInfo, currentPage, itemsPerPage, downloadedLyrics, failedLyrics, skippedLyrics, downloadingLyricsTrack, checkingAvailabilityTrack, availabilityMap, downloadedCovers, failedCovers, skippedCovers, downloadingCoverTrack, isBulkDownloadingCovers, isBulkDownloadingLyrics, onSearchChange, onSortChange, onToggleTrack, onToggleSelectAll, onDownloadTrack, onDownloadLyrics, onDownloadCover, onCheckAvailability, onDownloadAllLyrics, onDownloadAllCovers, onDownloadAll, onDownloadSelected, onStopDownload, onOpenFolder, onPageChange, onAlbumClick, onArtistClick, onTrackClick, onBack, }: PlaylistInfoProps) {
+    return (<div className="space-y-6">
+      <Card className="relative">
+      {onBack && (<div className="absolute top-4 right-4 z-10">
+          <Button variant="ghost" size="icon" onClick={onBack}>
+              <XCircle className="h-5 w-5"/>
+          </Button>
+      </div>)}
         <CardContent className="px-6">
           <div className="flex gap-6 items-start">
-            {playlistInfo.owner.images && (
-              <img
-                src={playlistInfo.owner.images}
-                alt={playlistInfo.owner.name}
-                className="w-48 h-48 rounded-md shadow-lg object-cover"
-              />
-            )}
+            {playlistInfo.cover && (<img src={playlistInfo.cover} alt={playlistInfo.owner.name} className="w-48 h-48 rounded-md shadow-lg object-cover"/>)}
             <div className="flex-1 space-y-4">
               <div className="space-y-2">
                 <p className="text-sm font-medium">Playlist</p>
                 <h2 className="text-4xl font-bold">{playlistInfo.owner.name}</h2>
+                {playlistInfo.description && (<p className="text-sm text-muted-foreground">{playlistInfo.description}</p>)}
                 <div className="flex items-center gap-2 text-sm">
-                  <span className="font-medium">{playlistInfo.owner.display_name}</span>
+                  <div className="flex items-center gap-2">
+                    {playlistInfo.owner.images && (<img src={playlistInfo.owner.images} alt={playlistInfo.owner.display_name} className="w-5 h-5 rounded-full object-cover"/>)}
+                    <span className="font-medium">{playlistInfo.owner.display_name}</span>
+                  </div>
                   <span>•</span>
                   <span>
-                    {playlistInfo.tracks.total} {playlistInfo.tracks.total === 1 ? "song" : "songs"}
+                    {playlistInfo.tracks.total.toLocaleString()} {playlistInfo.tracks.total === 1 ? "track" : "tracks"}
                   </span>
                   <span>•</span>
-                  <span>{playlistInfo.followers.total.toLocaleString()} followers</span>
+                  <span>{playlistInfo.followers.total.toLocaleString()} {playlistInfo.followers.total === 1 ? "follower" : "followers"}</span>
                 </div>
               </div>
               <div className="flex gap-2 flex-wrap">
                 <Button onClick={onDownloadAll} disabled={isDownloading}>
-                  {isDownloading && bulkDownloadType === "all" ? (
-                    <Spinner />
-                  ) : (
-                    <Download className="h-4 w-4" />
-                  )}
+                  {isDownloading && bulkDownloadType === "all" ? (<Spinner />) : (<Download className="h-4 w-4"/>)}
                   Download All
                 </Button>
-                {selectedTracks.length > 0 && (
-                  <Button
-                    onClick={onDownloadSelected}
-                    variant="secondary"
-                    disabled={isDownloading}
-                  >
-                    {isDownloading && bulkDownloadType === "selected" ? (
-                      <Spinner />
-                    ) : (
-                      <Download className="h-4 w-4" />
-                    )}
-                    Download Selected ({selectedTracks.length})
-                  </Button>
-                )}
-                {onDownloadAllLyrics && (
-                  <Tooltip>
+                {selectedTracks.length > 0 && (<Button onClick={onDownloadSelected} variant="secondary" disabled={isDownloading}>
+                    {isDownloading && bulkDownloadType === "selected" ? (<Spinner />) : (<Download className="h-4 w-4"/>)}
+                    Download Selected ({selectedTracks.length.toLocaleString()})
+                  </Button>)}
+                {onDownloadAllLyrics && (<Tooltip>
                     <TooltipTrigger asChild>
-                      <Button
-                        onClick={onDownloadAllLyrics}
-                        variant="outline"
-                        disabled={isBulkDownloadingLyrics}
-                      >
-                        {isBulkDownloadingLyrics ? <Spinner /> : <FileText className="h-4 w-4" />}
+                      <Button onClick={onDownloadAllLyrics} variant="outline" disabled={isBulkDownloadingLyrics}>
+                        {isBulkDownloadingLyrics ? <Spinner /> : <FileText className="h-4 w-4"/>}
                       </Button>
                     </TooltipTrigger>
                     <TooltipContent>
                       <p>Download All Lyrics</p>
                     </TooltipContent>
-                  </Tooltip>
-                )}
-                {onDownloadAllCovers && (
-                  <Tooltip>
+                  </Tooltip>)}
+                {onDownloadAllCovers && (<Tooltip>
                     <TooltipTrigger asChild>
-                      <Button
-                        onClick={onDownloadAllCovers}
-                        variant="outline"
-                        disabled={isBulkDownloadingCovers}
-                      >
-                        {isBulkDownloadingCovers ? <Spinner /> : <ImageDown className="h-4 w-4" />}
+                      <Button onClick={onDownloadAllCovers} variant="outline" disabled={isBulkDownloadingCovers}>
+                        {isBulkDownloadingCovers ? <Spinner /> : <ImageDown className="h-4 w-4"/>}
                       </Button>
                     </TooltipTrigger>
                     <TooltipContent>
                       <p>Download All Covers</p>
                     </TooltipContent>
-                  </Tooltip>
-                )}
-                {downloadedTracks.size > 0 && (
-                  <Button onClick={onOpenFolder} variant="outline">
-                    <FolderOpen className="h-4 w-4" />
+                  </Tooltip>)}
+                {downloadedTracks.size > 0 && (<Button onClick={onOpenFolder} variant="outline">
+                    <FolderOpen className="h-4 w-4"/>
                     Open Folder
-                  </Button>
-                )}
+                  </Button>)}
               </div>
-              {isDownloading && (
-                <DownloadProgress
-                  progress={downloadProgress}
-                  currentTrack={currentDownloadInfo}
-                  onStop={onStopDownload}
-                />
-              )}
+              {isDownloading && (<DownloadProgress progress={downloadProgress} currentTrack={currentDownloadInfo} onStop={onStopDownload}/>)}
             </div>
           </div>
         </CardContent>
       </Card>
       <div className="space-y-4">
-        <SearchAndSort
-          searchQuery={searchQuery}
-          sortBy={sortBy}
-          onSearchChange={onSearchChange}
-          onSortChange={onSortChange}
-        />
-        <TrackList
-          tracks={trackList}
-          searchQuery={searchQuery}
-          sortBy={sortBy}
-          selectedTracks={selectedTracks}
-          downloadedTracks={downloadedTracks}
-          failedTracks={failedTracks}
-          skippedTracks={skippedTracks}
-          downloadingTrack={downloadingTrack}
-          isDownloading={isDownloading}
-          currentPage={currentPage}
-          itemsPerPage={itemsPerPage}
-          showCheckboxes={true}
-          hideAlbumColumn={false}
-          folderName={playlistInfo.owner.name}
-          downloadedLyrics={downloadedLyrics}
-          failedLyrics={failedLyrics}
-          skippedLyrics={skippedLyrics}
-          downloadingLyricsTrack={downloadingLyricsTrack}
-          checkingAvailabilityTrack={checkingAvailabilityTrack}
-          availabilityMap={availabilityMap}
-          downloadedCovers={downloadedCovers}
-          failedCovers={failedCovers}
-          skippedCovers={skippedCovers}
-          downloadingCoverTrack={downloadingCoverTrack}
-          onToggleTrack={onToggleTrack}
-          onToggleSelectAll={onToggleSelectAll}
-          onDownloadTrack={onDownloadTrack}
-          onDownloadLyrics={onDownloadLyrics}
-          onDownloadCover={onDownloadCover}
-          onCheckAvailability={onCheckAvailability}
-          onPageChange={onPageChange}
-          onAlbumClick={onAlbumClick}
-          onArtistClick={onArtistClick}
-          onTrackClick={onTrackClick}
-        />
+        <SearchAndSort searchQuery={searchQuery} sortBy={sortBy} onSearchChange={onSearchChange} onSortChange={onSortChange}/>
+        <TrackList tracks={trackList} searchQuery={searchQuery} sortBy={sortBy} selectedTracks={selectedTracks} downloadedTracks={downloadedTracks} failedTracks={failedTracks} skippedTracks={skippedTracks} downloadingTrack={downloadingTrack} isDownloading={isDownloading} currentPage={currentPage} itemsPerPage={itemsPerPage} showCheckboxes={true} hideAlbumColumn={false} folderName={playlistInfo.owner.name} downloadedLyrics={downloadedLyrics} failedLyrics={failedLyrics} skippedLyrics={skippedLyrics} downloadingLyricsTrack={downloadingLyricsTrack} checkingAvailabilityTrack={checkingAvailabilityTrack} availabilityMap={availabilityMap} downloadedCovers={downloadedCovers} failedCovers={failedCovers} skippedCovers={skippedCovers} downloadingCoverTrack={downloadingCoverTrack} onToggleTrack={onToggleTrack} onToggleSelectAll={onToggleSelectAll} onDownloadTrack={onDownloadTrack} onDownloadLyrics={onDownloadLyrics} onDownloadCover={onDownloadCover} onCheckAvailability={onCheckAvailability} onPageChange={onPageChange} onAlbumClick={onAlbumClick} onArtistClick={onArtistClick} onTrackClick={onTrackClick}/>
       </div>
-    </div>
-  );
+    </div>);
 }

frontend/src/components/SearchAndSort.tsx

@@ -1,50 +1,25 @@
 import { Input } from "@/components/ui/input";
-import {
-  Select,
-  SelectContent,
-  SelectItem,
-  SelectTrigger,
-  SelectValue,
-} from "@/components/ui/select";
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue, } from "@/components/ui/select";
 import { Search, ArrowUpDown, XCircle } from "lucide-react";
-
 interface SearchAndSortProps {
-  searchQuery: string;
-  sortBy: string;
-  onSearchChange: (value: string) => void;
-  onSortChange: (value: string) => void;
+    searchQuery: string;
+    sortBy: string;
+    onSearchChange: (value: string) => void;
+    onSortChange: (value: string) => void;
 }
-
-export function SearchAndSort({
-  searchQuery,
-  sortBy,
-  onSearchChange,
-  onSortChange,
-}: SearchAndSortProps) {
-  return (
-    <div className="flex gap-2">
+export function SearchAndSort({ searchQuery, sortBy, onSearchChange, onSortChange, }: SearchAndSortProps) {
+    return (<div className="flex gap-2">
       <div className="relative flex-1">
-        <Search className="absolute left-3 top-1/2 transform -translate-y-1/2 h-4 w-4 text-muted-foreground" />
-        <Input
-          placeholder="Search tracks..."
-          value={searchQuery}
-          onChange={(e) => onSearchChange(e.target.value)}
-          className="pl-10 pr-8"
-        />
-        {searchQuery && (
-          <button
-            type="button"
-            className="absolute right-2 top-1/2 -translate-y-1/2 text-muted-foreground hover:text-foreground transition-colors cursor-pointer"
-            onClick={() => onSearchChange("")}
-          >
-            <XCircle className="h-4 w-4" />
-          </button>
-        )}
+        <Search className="absolute left-3 top-1/2 transform -translate-y-1/2 h-4 w-4 text-muted-foreground"/>
+        <Input placeholder="Search tracks..." value={searchQuery} onChange={(e) => onSearchChange(e.target.value)} className="pl-10 pr-8"/>
+        {searchQuery && (<button type="button" className="absolute right-2 top-1/2 -translate-y-1/2 text-muted-foreground hover:text-foreground transition-colors cursor-pointer" onClick={() => onSearchChange("")}>
+            <XCircle className="h-4 w-4"/>
+          </button>)}
       </div>
       <Select value={sortBy} onValueChange={onSortChange}>
         <SelectTrigger className="w-[200px] gap-1.5">
-          <ArrowUpDown className="h-4 w-4" />
-          <SelectValue placeholder="Sort by" />
+          <ArrowUpDown className="h-4 w-4"/>
+          <SelectValue placeholder="Sort by"/>
         </SelectTrigger>
         <SelectContent>
           <SelectItem value="default">Default</SelectItem>
@@ -54,10 +29,11 @@ export function SearchAndSort({
           <SelectItem value="artist-desc">Artist (Z-A)</SelectItem>
           <SelectItem value="duration-asc">Duration (Short)</SelectItem>
           <SelectItem value="duration-desc">Duration (Long)</SelectItem>
+          <SelectItem value="plays-asc">Plays (Low)</SelectItem>
+          <SelectItem value="plays-desc">Plays (High)</SelectItem>
           <SelectItem value="downloaded">Downloaded</SelectItem>
           <SelectItem value="not-downloaded">Not Downloaded</SelectItem>
         </SelectContent>
       </Select>
-    </div>
-  );
+    </div>);
 }

frontend/src/components/Sidebar.tsx

@@ -1,181 +1,137 @@
-import { FileMusic, FilePen } from "lucide-react";
 import { HomeIcon } from "@/components/ui/home";
+import { HistoryIcon } from "@/components/ui/history-icon";
 import { SettingsIcon } from "@/components/ui/settings";
 import { ActivityIcon } from "@/components/ui/activity";
 import { TerminalIcon } from "@/components/ui/terminal";
-import { GithubIcon } from "@/components/ui/github";
-import { BlocksIcon } from "@/components/ui/blocks";
+import { FileMusicIcon } from "@/components/ui/file-music";
+import { FilePenIcon } from "@/components/ui/file-pen";
 import { CoffeeIcon } from "@/components/ui/coffee";
-import {
-  Tooltip,
-  TooltipContent,
-  TooltipTrigger,
-} from "@/components/ui/tooltip";
+import { BadgeAlertIcon } from "@/components/ui/badge-alert";
+import { Tooltip, TooltipContent, TooltipTrigger, } from "@/components/ui/tooltip";
 import { Button } from "@/components/ui/button";
 import { openExternal } from "@/lib/utils";
-
-export type PageType = "main" | "settings" | "debug" | "audio-analysis" | "audio-converter" | "file-manager";
-
+import BmcLogo from "@/assets/bmc-logo-side.svg";
+import BmcLogoWhite from "@/assets/bmc-logo-side-white.svg";
+import KofiLogo from "@/assets/kofi_symbol.svg";
+export type PageType = "main" | "settings" | "debug" | "audio-analysis" | "audio-converter" | "file-manager" | "about" | "history";
 interface SidebarProps {
-  currentPage: PageType;
-  onPageChange: (page: PageType) => void;
+    currentPage: PageType;
+    onPageChange: (page: PageType) => void;
 }
-
 export function Sidebar({ currentPage, onPageChange }: SidebarProps) {
-  return (
-    <div className="fixed left-0 top-0 h-full w-14 bg-card border-r border-border flex flex-col items-center py-14 z-30">
-      <div className="flex flex-col gap-2 flex-1">
-        {/* Home */}
-        <Tooltip delayDuration={0}>
-          <TooltipTrigger asChild>
-            <Button
-              variant={currentPage === "main" ? "secondary" : "ghost"}
-              size="icon"
-              className="h-10 w-10"
-              onClick={() => onPageChange("main")}
-            >
-              <HomeIcon size={20} />
-            </Button>
-          </TooltipTrigger>
-          <TooltipContent side="right">
-            <p>Home</p>
-          </TooltipContent>
-        </Tooltip>
+    return (<div className="fixed left-0 top-0 h-full w-14 bg-card border-r border-border flex flex-col items-center py-14 z-30">
+    <div className="flex flex-col gap-2 flex-1">
 
-        {/* Settings */}
-        <Tooltip delayDuration={0}>
-          <TooltipTrigger asChild>
-            <Button
-              variant={currentPage === "settings" ? "secondary" : "ghost"}
-              size="icon"
-              className="h-10 w-10"
-              onClick={() => onPageChange("settings")}
-            >
-              <SettingsIcon size={20} />
-            </Button>
-          </TooltipTrigger>
-          <TooltipContent side="right">
-            <p>Settings</p>
-          </TooltipContent>
-        </Tooltip>
+      <Tooltip delayDuration={0}>
+        <TooltipTrigger asChild>
+          <Button variant={currentPage === "main" ? "secondary" : "ghost"} size="icon" className={`h-10 w-10 ${currentPage === "main" ? "bg-primary/10 text-primary hover:bg-primary/20" : "hover:bg-primary/10 hover:text-primary"}`} onClick={() => onPageChange("main")}>
+            <HomeIcon size={20}/>
+          </Button>
+        </TooltipTrigger>
+        <TooltipContent side="right">
+          <p>Home</p>
+        </TooltipContent>
+      </Tooltip>
 
-        {/* Audio Analysis */}
-        <Tooltip delayDuration={0}>
-          <TooltipTrigger asChild>
-            <Button
-              variant={currentPage === "audio-analysis" ? "secondary" : "ghost"}
-              size="icon"
-              className="h-10 w-10"
-              onClick={() => onPageChange("audio-analysis")}
-            >
-              <ActivityIcon size={20} />
-            </Button>
-          </TooltipTrigger>
-          <TooltipContent side="right">
-            <p>Audio Quality Analyzer</p>
-          </TooltipContent>
-        </Tooltip>
+      <Tooltip delayDuration={0}>
+        <TooltipTrigger asChild>
+          <Button variant={currentPage === "history" ? "secondary" : "ghost"} size="icon" className={`h-10 w-10 ${currentPage === "history" ? "bg-primary/10 text-primary hover:bg-primary/20" : "hover:bg-primary/10 hover:text-primary"}`} onClick={() => onPageChange("history")}>
+            <HistoryIcon size={20}/>
+          </Button>
+        </TooltipTrigger>
+        <TooltipContent side="right">
+          <p>History</p>
+        </TooltipContent>
+      </Tooltip>
 
-        {/* Audio Converter - using lucide icon (no animated version) */}
-        <Tooltip delayDuration={0}>
-          <TooltipTrigger asChild>
-            <Button
-              variant={currentPage === "audio-converter" ? "secondary" : "ghost"}
-              size="icon"
-              className="h-10 w-10"
-              onClick={() => onPageChange("audio-converter")}
-            >
-              <FileMusic className="h-5 w-5" />
-            </Button>
-          </TooltipTrigger>
-          <TooltipContent side="right">
-            <p>Audio Converter</p>
-          </TooltipContent>
-        </Tooltip>
+      <Tooltip delayDuration={0}>
+        <TooltipTrigger asChild>
+          <Button variant={currentPage === "audio-analysis" ? "secondary" : "ghost"} size="icon" className={`h-10 w-10 ${currentPage === "audio-analysis" ? "bg-primary/10 text-primary hover:bg-primary/20" : "hover:bg-primary/10 hover:text-primary"}`} onClick={() => onPageChange("audio-analysis")}>
+            <ActivityIcon size={20}/>
+          </Button>
+        </TooltipTrigger>
+        <TooltipContent side="right">
+          <p>Audio Quality Analyzer</p>
+        </TooltipContent>
+      </Tooltip>
 
-        {/* File Manager - using lucide icon (no animated version) */}
-        <Tooltip delayDuration={0}>
-          <TooltipTrigger asChild>
-            <Button
-              variant={currentPage === "file-manager" ? "secondary" : "ghost"}
-              size="icon"
-              className="h-10 w-10"
-              onClick={() => onPageChange("file-manager")}
-            >
-              <FilePen className="h-5 w-5" />
-            </Button>
-          </TooltipTrigger>
-          <TooltipContent side="right">
-            <p>File Manager</p>
-          </TooltipContent>
-        </Tooltip>
+      <Tooltip delayDuration={0}>
+        <TooltipTrigger asChild>
+          <Button variant={currentPage === "audio-converter" ? "secondary" : "ghost"} size="icon" className={`h-10 w-10 ${currentPage === "audio-converter" ? "bg-primary/10 text-primary hover:bg-primary/20" : "hover:bg-primary/10 hover:text-primary"}`} onClick={() => onPageChange("audio-converter")}>
+            <FileMusicIcon size={20}/>
+          </Button>
+        </TooltipTrigger>
+        <TooltipContent side="right">
+          <p>Audio Converter</p>
+        </TooltipContent>
+      </Tooltip>
 
-        {/* Debug */}
-        <Tooltip delayDuration={0}>
-          <TooltipTrigger asChild>
-            <Button
-              variant={currentPage === "debug" ? "secondary" : "ghost"}
-              size="icon"
-              className="h-10 w-10"
-              onClick={() => onPageChange("debug")}
-            >
-              <TerminalIcon size={20} />
-            </Button>
-          </TooltipTrigger>
-          <TooltipContent side="right">
-            <p>Debug Logs</p>
-          </TooltipContent>
-        </Tooltip>
-      </div>
-      
-      {/* Bottom icons */}
-      <div className="mt-auto flex flex-col gap-2">
-        <Tooltip delayDuration={0}>
-          <TooltipTrigger asChild>
-            <Button
-              variant="ghost"
-              size="icon"
-              className="h-10 w-10"
-              onClick={() => openExternal("https://github.com/afkarxyz/SpotiFLAC/issues")}
-            >
-              <GithubIcon size={20} />
-            </Button>
-          </TooltipTrigger>
-          <TooltipContent side="right">
-            <p>Report Bug</p>
-          </TooltipContent>
-        </Tooltip>
-        <Tooltip delayDuration={0}>
-          <TooltipTrigger asChild>
-            <Button
-              variant="ghost"
-              size="icon"
-              className="h-10 w-10"
-              onClick={() => openExternal("https://exyezed.cc/")}
-            >
-              <BlocksIcon size={20} />
-            </Button>
-          </TooltipTrigger>
-          <TooltipContent side="right">
-            <p>Other Projects</p>
-          </TooltipContent>
-        </Tooltip>
-        <Tooltip delayDuration={0}>
-          <TooltipTrigger asChild>
-            <Button
-              variant="ghost"
-              size="icon"
-              className="h-10 w-10"
-              onClick={() => openExternal("https://ko-fi.com/afkarxyz")}
-            >
-              <CoffeeIcon size={20} />
-            </Button>
-          </TooltipTrigger>
-          <TooltipContent side="right">
-            <p>Support me on Ko-fi</p>
-          </TooltipContent>
-        </Tooltip>
+      <Tooltip delayDuration={0}>
+        <TooltipTrigger asChild>
+          <Button variant={currentPage === "file-manager" ? "secondary" : "ghost"} size="icon" className={`h-10 w-10 ${currentPage === "file-manager" ? "bg-primary/10 text-primary hover:bg-primary/20" : "hover:bg-primary/10 hover:text-primary"}`} onClick={() => onPageChange("file-manager")}>
+            <FilePenIcon size={20}/>
+          </Button>
+        </TooltipTrigger>
+        <TooltipContent side="right">
+          <p>File Manager</p>
+        </TooltipContent>
+      </Tooltip>
+
+      <Tooltip delayDuration={0}>
+        <TooltipTrigger asChild>
+          <Button variant={currentPage === "debug" ? "secondary" : "ghost"} size="icon" className={`h-10 w-10 ${currentPage === "debug" ? "bg-primary/10 text-primary hover:bg-primary/20" : "hover:bg-primary/10 hover:text-primary"}`} onClick={() => onPageChange("debug")}>
+            <TerminalIcon size={20} loop={true}/>
+          </Button>
+        </TooltipTrigger>
+        <TooltipContent side="right">
+          <p>Debug Logs</p>
+        </TooltipContent>
+      </Tooltip>
+
+      <Tooltip delayDuration={0}>
+        <TooltipTrigger asChild>
+          <Button variant={currentPage === "settings" ? "secondary" : "ghost"} size="icon" className={`h-10 w-10 ${currentPage === "settings" ? "bg-primary/10 text-primary hover:bg-primary/20" : "hover:bg-primary/10 hover:text-primary"}`} onClick={() => onPageChange("settings")}>
+            <SettingsIcon size={20}/>
+          </Button>
+        </TooltipTrigger>
+        <TooltipContent side="right">
+          <p>Settings</p>
+        </TooltipContent>
+      </Tooltip>
+    </div>
+
+
+    <div className="mt-auto flex flex-col gap-2">
+      <Tooltip delayDuration={0}>
+        <TooltipTrigger asChild>
+          <Button variant={currentPage === "about" ? "secondary" : "ghost"} size="icon" className={`h-10 w-10 ${currentPage === "about" ? "bg-primary/10 text-primary hover:bg-primary/20" : "hover:bg-primary/10 hover:text-primary"}`} onClick={() => onPageChange("about")}>
+            <BadgeAlertIcon size={20}/>
+          </Button>
+        </TooltipTrigger>
+        <TooltipContent side="right">
+          <p>About</p>
+        </TooltipContent>
+      </Tooltip>
+      <div className="relative group">
+          <Button variant="ghost" size="icon" className="h-10 w-10 hover:bg-primary/10 hover:text-primary">
+            <CoffeeIcon size={20} loop={true}/>
+          </Button>
+
+          
+          <div className="absolute left-10 bottom-0 w-4 h-full bg-transparent"/>
+
+          <div className="absolute left-10 bottom-0 mb-0 ml-3 hidden group-hover:flex flex-col gap-1 p-1 bg-popover border border-border rounded-md shadow-md z-50 w-max animate-in fade-in zoom-in-95 duration-200 origin-bottom-left">
+               <button onClick={() => openExternal("https://ko-fi.com/afkarxyz")} className="flex items-center gap-2 px-3 py-2 text-sm font-medium hover:bg-accent hover:text-accent-foreground rounded-sm transition-colors text-left w-full">
+                  <img src={KofiLogo} className="h-4 w-4" alt="Ko-fi"/>
+                  Support me on Ko-fi
+               </button>
+               <button onClick={() => openExternal("https://buymeacoffee.com/afkarxyz")} className="flex items-center gap-2 px-3 py-2 text-sm font-medium hover:bg-accent hover:text-accent-foreground rounded-sm transition-colors text-left w-full">
+                  <img src={BmcLogo} className="h-4 w-4 dark:hidden" alt="BMC"/>
+                  <img src={BmcLogoWhite} className="h-4 w-4 hidden dark:block" alt="BMC"/>
+                  Buy Me a Coffee
+               </button>
+          </div>
       </div>
     </div>
-  );
+  </div>);
 }

frontend/src/components/SpectrumVisualization.tsx

@@ -1,289 +1,193 @@
 import { useEffect, useRef } from "react";
 import type { SpectrumData } from "@/types/api";
-
 interface SpectrumVisualizationProps {
-  sampleRate: number;
-  bitsPerSample: number;
-  duration: number;
-  spectrumData?: SpectrumData;
+    sampleRate: number;
+    bitsPerSample: number;
+    duration: number;
+    spectrumData?: SpectrumData;
 }
-
-export function SpectrumVisualization({
-  sampleRate,
-  bitsPerSample,
-  duration,
-  spectrumData,
-}: SpectrumVisualizationProps) {
-  const canvasRef = useRef<HTMLCanvasElement>(null);
-
-  useEffect(() => {
-    const canvas = canvasRef.current;
-    if (!canvas) return;
-
-    const ctx = canvas.getContext("2d");
-    if (!ctx) return;
-
-    const width = canvas.width;
-    const height = canvas.height;
-
-    // Calculate margins for labels
-    const marginLeft = 70; // More space for Frequency label
-    const marginRight = 70; // Space for color bar
-    const marginTop = 30; // More space at top
-    const marginBottom = 65; // More space at bottom for Time label
-
-    const plotWidth = width - marginLeft - marginRight;
-    const plotHeight = height - marginTop - marginBottom;
-
-    // Black background
-    ctx.fillStyle = "#000000";
-    ctx.fillRect(0, 0, width, height);
-
-    // Calculate Nyquist frequency
-    const nyquistFreq = sampleRate / 2;
-
-    if (spectrumData) {
-      drawRealSpectrum(
-        ctx,
-        marginLeft,
-        marginTop,
-        plotWidth,
-        plotHeight,
-        spectrumData
-      );
-    }
-
-    // Draw axes, labels, and color bar
-    drawAxesAndLabels(ctx, marginLeft, marginTop, plotWidth, plotHeight, nyquistFreq, duration, sampleRate);
-    drawColorBar(ctx, marginLeft + plotWidth + 15, marginTop, 20, plotHeight);
-  }, [sampleRate, bitsPerSample, duration, spectrumData]);
-
-  const drawRealSpectrum = (
-    ctx: CanvasRenderingContext2D,
-    x: number,
-    y: number,
-    width: number,
-    height: number,
-    spectrum: SpectrumData
-  ) => {
-    const timeSlices = spectrum.time_slices;
-    if (timeSlices.length === 0) return;
-
-    const freqBins = timeSlices[0].magnitudes.length;
-    const nyquistFreq = spectrum.max_freq;
-
-    // Find min/max dB values
-    let minDB = 0;
-    let maxDB = -200;
-
-    timeSlices.forEach((slice) => {
-      slice.magnitudes.forEach((db) => {
-        if (db > maxDB) maxDB = db;
-        if (db < minDB && db > -200) minDB = db;
-      });
-    });
-
-    // Clamp range for better visualization
-    minDB = Math.max(minDB, maxDB - 90); // 90dB dynamic range
-    const dbRange = maxDB - minDB;
-
-    const sliceWidth = Math.ceil(width / timeSlices.length);
-
-    for (let t = 0; t < timeSlices.length; t++) {
-      const slice = timeSlices[t];
-      const xPos = x + (t / timeSlices.length) * width;
-
-      for (let f = 0; f < freqBins && f < slice.magnitudes.length; f++) {
-        const db = slice.magnitudes[f];
-
-        // Linear frequency scale
-        const freq = (f / freqBins) * nyquistFreq;
-        const freqRatio = freq / nyquistFreq;
-        
-        const yPos = y + height - (freqRatio * height);
-
-        // Calculate bin height
-        const nextFreq = ((f + 1) / freqBins) * nyquistFreq;
-        const nextFreqRatio = nextFreq / nyquistFreq;
-        const nextYPos = y + height - (nextFreqRatio * height);
-        
-        const binHeight = Math.max(1, Math.abs(yPos - nextYPos) + 1);
-
-        // Normalize intensity
-        const intensity = Math.max(0, Math.min(1, (db - minDB) / dbRange));
-
-        const color = getSpekColor(intensity);
-        ctx.fillStyle = color;
-        ctx.fillRect(xPos, nextYPos, sliceWidth, binHeight);
-      }
-    }
-  };
-
-  // Vibrant color scheme like Spek - NGEJERENG!
-  const getSpekColor = (intensity: number): string => {
-    if (intensity < 0.08) {
-      // Black to deep blue
-      const t = intensity / 0.08;
-      return `rgb(0, 0, ${Math.floor(t * 80)})`;
-    } else if (intensity < 0.18) {
-      // Deep blue to bright blue
-      const t = (intensity - 0.08) / 0.10;
-      return `rgb(${Math.floor(t * 50)}, ${Math.floor(t * 30)}, ${Math.floor(80 + t * 175)})`;
-    } else if (intensity < 0.28) {
-      // Blue to magenta/purple
-      const t = (intensity - 0.18) / 0.10;
-      return `rgb(${Math.floor(50 + t * 150)}, ${Math.floor(30 - t * 30)}, ${Math.floor(255 - t * 55)})`;
-    } else if (intensity < 0.40) {
-      // Magenta to bright red
-      const t = (intensity - 0.28) / 0.12;
-      return `rgb(${Math.floor(200 + t * 55)}, 0, ${Math.floor(200 - t * 200)})`;
-    } else if (intensity < 0.52) {
-      // Red to orange-red
-      const t = (intensity - 0.40) / 0.12;
-      return `rgb(255, ${Math.floor(t * 100)}, 0)`;
-    } else if (intensity < 0.65) {
-      // Orange-red to bright orange
-      const t = (intensity - 0.52) / 0.13;
-      return `rgb(255, ${Math.floor(100 + t * 80)}, 0)`;
-    } else if (intensity < 0.78) {
-      // Orange to yellow-orange
-      const t = (intensity - 0.65) / 0.13;
-      return `rgb(255, ${Math.floor(180 + t * 55)}, ${Math.floor(t * 30)})`;
-    } else if (intensity < 0.90) {
-      // Yellow-orange to bright yellow
-      const t = (intensity - 0.78) / 0.12;
-      return `rgb(255, ${Math.floor(235 + t * 20)}, ${Math.floor(30 + t * 100)})`;
-    } else {
-      // Yellow to white (hottest)
-      const t = (intensity - 0.90) / 0.10;
-      return `rgb(255, 255, ${Math.floor(130 + t * 125)})`;
-    }
-  };
-
-  const drawAxesAndLabels = (
-    ctx: CanvasRenderingContext2D,
-    x: number,
-    y: number,
-    width: number,
-    height: number,
-    nyquistFreq: number,
-    duration: number,
-    sampleRate: number
-  ) => {
-    // Frequency labels on Y-axis
-    ctx.fillStyle = "#CCCCCC";
-    ctx.font = "12px Arial";
-    ctx.textAlign = "right";
-    ctx.textBaseline = "middle";
-
-    // Generate frequency labels based on Nyquist
-    const freqLabels = generateFreqLabels(nyquistFreq);
-    
-    freqLabels.forEach(freq => {
-      if (freq <= nyquistFreq) {
-        const freqRatio = freq / nyquistFreq;
-        const yPos = y + height - (freqRatio * height);
-        const label = freq >= 1000 ? `${freq / 1000}k` : `${freq}`;
-        ctx.fillText(label, x - 8, yPos);
-      }
-    });
-
-    // "0" at bottom
-    ctx.fillText("0", x - 8, y + height);
-
-    // Time labels on X-axis
-    ctx.textAlign = "center";
-    ctx.textBaseline = "top";
-
-    const timeStep = getTimeStep(duration);
-    for (let t = 0; t <= duration; t += timeStep) {
-      const xPos = x + (t / duration) * width;
-      ctx.fillText(`${Math.round(t)}s`, xPos, y + height + 8);
-    }
-
-    // Axis titles
-    ctx.fillStyle = "#FFFFFF";
-    ctx.font = "13px Arial";
-
-    // Y-axis title: "Frequency (Hz)"
-    ctx.save();
-    ctx.translate(12, y + height / 2);
-    ctx.rotate(-Math.PI / 2);
-    ctx.textAlign = "center";
-    ctx.fillText("Frequency (Hz)", 0, 0);
-    ctx.restore();
-
-    // X-axis title: "Time (seconds)"
-    ctx.textAlign = "center";
-    ctx.fillText("Time (seconds)", x + width / 2, y + height + 35);
-
-    // Sample rate info in top right
-    ctx.textAlign = "right";
-    ctx.fillStyle = "#CCCCCC";
-    ctx.font = "12px Arial";
-    ctx.fillText(`Sample Rate: ${sampleRate} Hz`, x + width - 5, y - 3);
-  };
-
-  const generateFreqLabels = (nyquistFreq: number): number[] => {
-    if (nyquistFreq <= 24000) {
-      return [2000, 4000, 6000, 8000, 10000, 12000, 14000, 16000, 18000, 20000, 22000];
-    } else if (nyquistFreq <= 48000) {
-      return [5000, 10000, 15000, 20000, 25000, 30000, 35000, 40000, 45000];
-    } else if (nyquistFreq <= 96000) {
-      return [10000, 20000, 30000, 40000, 50000, 60000, 70000, 80000, 90000];
-    } else {
-      return [20000, 40000, 60000, 80000, 100000, 120000, 140000, 160000, 180000];
-    }
-  };
-
-  const getTimeStep = (duration: number): number => {
-    // Always use 30s intervals like the reference image
-    if (duration <= 60) return 15;
-    if (duration <= 120) return 30;
-    if (duration <= 300) return 30;
-    if (duration <= 600) return 60;
-    return 60;
-  };
-
-  const drawColorBar = (
-    ctx: CanvasRenderingContext2D,
-    x: number,
-    y: number,
-    width: number,
-    height: number
-  ) => {
-    // Draw gradient color bar
-    for (let i = 0; i < height; i++) {
-      const intensity = 1 - (i / height); // Top is high, bottom is low
-      const color = getSpekColor(intensity);
-      ctx.fillStyle = color;
-      ctx.fillRect(x, y + i, width, 1);
-    }
-
-    // Border around color bar
-    ctx.strokeStyle = "#666666";
-    ctx.lineWidth = 1;
-    ctx.strokeRect(x, y, width, height);
-
-    // Labels
-    ctx.fillStyle = "#FFFFFF";
-    ctx.font = "11px Arial";
-    ctx.textAlign = "left";
-    ctx.textBaseline = "middle";
-    
-    ctx.fillText("High", x + width + 5, y + 10);
-    ctx.fillText("Low", x + width + 5, y + height - 10);
-  };
-
-  return (
-    <div className="border border-white/10 rounded-lg overflow-hidden bg-black shadow-xl">
-      <canvas
-        ref={canvasRef}
-        width={1200}
-        height={600}
-        className="w-full h-auto"
-        style={{ imageRendering: "auto" }}
-      />
-    </div>
-  );
+export function SpectrumVisualization({ sampleRate, bitsPerSample, duration, spectrumData, }: SpectrumVisualizationProps) {
+    const canvasRef = useRef<HTMLCanvasElement>(null);
+    useEffect(() => {
+        const canvas = canvasRef.current;
+        if (!canvas)
+            return;
+        const ctx = canvas.getContext("2d");
+        if (!ctx)
+            return;
+        const width = canvas.width;
+        const height = canvas.height;
+        const marginLeft = 70;
+        const marginRight = 70;
+        const marginTop = 30;
+        const marginBottom = 65;
+        const plotWidth = width - marginLeft - marginRight;
+        const plotHeight = height - marginTop - marginBottom;
+        ctx.fillStyle = "#000000";
+        ctx.fillRect(0, 0, width, height);
+        const nyquistFreq = sampleRate / 2;
+        if (spectrumData) {
+            drawRealSpectrum(ctx, marginLeft, marginTop, plotWidth, plotHeight, spectrumData);
+        }
+        drawAxesAndLabels(ctx, marginLeft, marginTop, plotWidth, plotHeight, nyquistFreq, duration, sampleRate);
+        drawColorBar(ctx, marginLeft + plotWidth + 15, marginTop, 20, plotHeight);
+    }, [sampleRate, bitsPerSample, duration, spectrumData]);
+    const drawRealSpectrum = (ctx: CanvasRenderingContext2D, x: number, y: number, width: number, height: number, spectrum: SpectrumData) => {
+        const timeSlices = spectrum.time_slices;
+        if (timeSlices.length === 0)
+            return;
+        const freqBins = timeSlices[0].magnitudes.length;
+        const nyquistFreq = spectrum.max_freq;
+        let minDB = 0;
+        let maxDB = -200;
+        timeSlices.forEach((slice) => {
+            slice.magnitudes.forEach((db) => {
+                if (db > maxDB)
+                    maxDB = db;
+                if (db < minDB && db > -200)
+                    minDB = db;
+            });
+        });
+        minDB = Math.max(minDB, maxDB - 90);
+        const dbRange = maxDB - minDB;
+        const sliceWidth = Math.ceil(width / timeSlices.length);
+        for (let t = 0; t < timeSlices.length; t++) {
+            const slice = timeSlices[t];
+            const xPos = x + (t / timeSlices.length) * width;
+            for (let f = 0; f < freqBins && f < slice.magnitudes.length; f++) {
+                const db = slice.magnitudes[f];
+                const freq = (f / freqBins) * nyquistFreq;
+                const freqRatio = freq / nyquistFreq;
+                const yPos = y + height - (freqRatio * height);
+                const nextFreq = ((f + 1) / freqBins) * nyquistFreq;
+                const nextFreqRatio = nextFreq / nyquistFreq;
+                const nextYPos = y + height - (nextFreqRatio * height);
+                const binHeight = Math.max(1, Math.abs(yPos - nextYPos) + 1);
+                const intensity = Math.max(0, Math.min(1, (db - minDB) / dbRange));
+                const color = getSpekColor(intensity);
+                ctx.fillStyle = color;
+                ctx.fillRect(xPos, nextYPos, sliceWidth, binHeight);
+            }
+        }
+    };
+    const getSpekColor = (intensity: number): string => {
+        if (intensity < 0.08) {
+            const t = intensity / 0.08;
+            return `rgb(0, 0, ${Math.floor(t * 80)})`;
+        }
+        else if (intensity < 0.18) {
+            const t = (intensity - 0.08) / 0.10;
+            return `rgb(${Math.floor(t * 50)}, ${Math.floor(t * 30)}, ${Math.floor(80 + t * 175)})`;
+        }
+        else if (intensity < 0.28) {
+            const t = (intensity - 0.18) / 0.10;
+            return `rgb(${Math.floor(50 + t * 150)}, ${Math.floor(30 - t * 30)}, ${Math.floor(255 - t * 55)})`;
+        }
+        else if (intensity < 0.40) {
+            const t = (intensity - 0.28) / 0.12;
+            return `rgb(${Math.floor(200 + t * 55)}, 0, ${Math.floor(200 - t * 200)})`;
+        }
+        else if (intensity < 0.52) {
+            const t = (intensity - 0.40) / 0.12;
+            return `rgb(255, ${Math.floor(t * 100)}, 0)`;
+        }
+        else if (intensity < 0.65) {
+            const t = (intensity - 0.52) / 0.13;
+            return `rgb(255, ${Math.floor(100 + t * 80)}, 0)`;
+        }
+        else if (intensity < 0.78) {
+            const t = (intensity - 0.65) / 0.13;
+            return `rgb(255, ${Math.floor(180 + t * 55)}, ${Math.floor(t * 30)})`;
+        }
+        else if (intensity < 0.90) {
+            const t = (intensity - 0.78) / 0.12;
+            return `rgb(255, ${Math.floor(235 + t * 20)}, ${Math.floor(30 + t * 100)})`;
+        }
+        else {
+            const t = (intensity - 0.90) / 0.10;
+            return `rgb(255, 255, ${Math.floor(130 + t * 125)})`;
+        }
+    };
+    const drawAxesAndLabels = (ctx: CanvasRenderingContext2D, x: number, y: number, width: number, height: number, nyquistFreq: number, duration: number, sampleRate: number) => {
+        ctx.fillStyle = "#CCCCCC";
+        ctx.font = "12px Arial";
+        ctx.textAlign = "right";
+        ctx.textBaseline = "middle";
+        const freqLabels = generateFreqLabels(nyquistFreq);
+        freqLabels.forEach(freq => {
+            if (freq <= nyquistFreq) {
+                const freqRatio = freq / nyquistFreq;
+                const yPos = y + height - (freqRatio * height);
+                const label = freq >= 1000 ? `${freq / 1000}k` : `${freq}`;
+                ctx.fillText(label, x - 8, yPos);
+            }
+        });
+        ctx.fillText("0", x - 8, y + height);
+        ctx.textAlign = "center";
+        ctx.textBaseline = "top";
+        const timeStep = getTimeStep(duration);
+        for (let t = 0; t <= duration; t += timeStep) {
+            const xPos = x + (t / duration) * width;
+            ctx.fillText(`${Math.round(t)}s`, xPos, y + height + 8);
+        }
+        ctx.fillStyle = "#FFFFFF";
+        ctx.font = "13px Arial";
+        ctx.save();
+        ctx.translate(12, y + height / 2);
+        ctx.rotate(-Math.PI / 2);
+        ctx.textAlign = "center";
+        ctx.fillText("Frequency (Hz)", 0, 0);
+        ctx.restore();
+        ctx.textAlign = "center";
+        ctx.fillText("Time (seconds)", x + width / 2, y + height + 35);
+        ctx.textAlign = "right";
+        ctx.fillStyle = "#CCCCCC";
+        ctx.font = "12px Arial";
+        ctx.fillText(`Sample Rate: ${sampleRate} Hz`, x + width - 5, y - 3);
+    };
+    const generateFreqLabels = (nyquistFreq: number): number[] => {
+        if (nyquistFreq <= 24000) {
+            return [2000, 4000, 6000, 8000, 10000, 12000, 14000, 16000, 18000, 20000, 22000];
+        }
+        else if (nyquistFreq <= 48000) {
+            return [5000, 10000, 15000, 20000, 25000, 30000, 35000, 40000, 45000];
+        }
+        else if (nyquistFreq <= 96000) {
+            return [10000, 20000, 30000, 40000, 50000, 60000, 70000, 80000, 90000];
+        }
+        else {
+            return [20000, 40000, 60000, 80000, 100000, 120000, 140000, 160000, 180000];
+        }
+    };
+    const getTimeStep = (duration: number): number => {
+        if (duration <= 60)
+            return 15;
+        if (duration <= 120)
+            return 30;
+        if (duration <= 300)
+            return 30;
+        if (duration <= 600)
+            return 60;
+        return 60;
+    };
+    const drawColorBar = (ctx: CanvasRenderingContext2D, x: number, y: number, width: number, height: number) => {
+        for (let i = 0; i < height; i++) {
+            const intensity = 1 - (i / height);
+            const color = getSpekColor(intensity);
+            ctx.fillStyle = color;
+            ctx.fillRect(x, y + i, width, 1);
+        }
+        ctx.strokeStyle = "#666666";
+        ctx.lineWidth = 1;
+        ctx.strokeRect(x, y, width, height);
+        ctx.fillStyle = "#FFFFFF";
+        ctx.font = "11px Arial";
+        ctx.textAlign = "left";
+        ctx.textBaseline = "middle";
+        ctx.fillText("High", x + width + 5, y + 10);
+        ctx.fillText("Low", x + width + 5, y + height - 10);
+    };
+    return (<div className="border border-white/10 rounded-lg overflow-hidden bg-black shadow-xl">
+      <canvas ref={canvasRef} width={1200} height={600} className="w-full h-auto" style={{ imageRendering: "auto" }}/>
+    </div>);
 }

frontend/src/components/TitleBar.tsx

@@ -1,55 +1,82 @@
-import { X, Minus, Maximize } from "lucide-react";
+import { X, Minus, Maximize, Settings, Info } from "lucide-react";
 import { WindowMinimise, WindowToggleMaximise, Quit } from "../../wailsjs/runtime/runtime";
-
+import { Menubar, MenubarContent, MenubarMenu, MenubarItem, MenubarTrigger, MenubarLabel, MenubarSeparator } from "@/components/ui/menubar";
+import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from "@/components/ui/tooltip";
+import { getSettings, updateSettings } from "@/lib/settings";
+import { useState, useEffect } from "react";
 export function TitleBar() {
-  const handleMinimize = () => {
-    WindowMinimise();
-  };
+    const [useSpotFetchAPI, setUseSpotFetchAPI] = useState(false);
+    useEffect(() => {
+        const settings = getSettings();
+        if (settings) {
+            setUseSpotFetchAPI(settings.useSpotFetchAPI || false);
+        }
+        const handleSettingsUpdate = (event: any) => {
+            const updatedSettings = event.detail;
+            if (updatedSettings && typeof updatedSettings.useSpotFetchAPI !== 'undefined') {
+                setUseSpotFetchAPI(updatedSettings.useSpotFetchAPI);
+            }
+        };
+        window.addEventListener('settingsUpdated', handleSettingsUpdate);
+        return () => window.removeEventListener('settingsUpdated', handleSettingsUpdate);
+    }, []);
+    const handleSpotFetchAPIToggle = () => {
+        const newValue = !useSpotFetchAPI;
+        setUseSpotFetchAPI(newValue);
+        updateSettings({ useSpotFetchAPI: newValue });
+    };
+    const handleMinimize = () => {
+        WindowMinimise();
+    };
+    const handleMaximize = () => {
+        WindowToggleMaximise();
+    };
+    const handleClose = () => {
+        Quit();
+    };
+    return (<>
 
-  const handleMaximize = () => {
-    WindowToggleMaximise();
-  };
+      <div className="fixed top-0 left-14 right-0 h-10 z-40 bg-background/80 backdrop-blur-sm" style={{ "--wails-draggable": "drag" } as React.CSSProperties} onDoubleClick={handleMaximize}/>
 
-  const handleClose = () => {
-    Quit();
-  };
 
-  return (
-    <>
-      {/* Draggable area */}
-      <div 
-        className="fixed top-0 left-14 right-0 h-10 z-40 bg-background/80 backdrop-blur-sm"
-        style={{ "--wails-draggable": "drag" } as React.CSSProperties}
-        onDoubleClick={handleMaximize}
-      />
-      
-      {/* Window control buttons - Windows style, right side */}
-      <div className="fixed top-1.5 right-2 z-50 flex h-7 gap-0.5">
-        <button
-          onClick={handleMinimize}
-          className="w-8 h-7 flex items-center justify-center hover:bg-muted transition-colors rounded"
-          style={{ "--wails-draggable": "no-drag" } as React.CSSProperties}
-          aria-label="Minimize"
-        >
-          <Minus className="w-3.5 h-3.5" />
+      <div className="fixed top-1.5 right-2 z-50 flex h-7 gap-0.5 items-center">
+        <Menubar className="border-none bg-transparent shadow-none px-0 mr-1" style={{ "--wails-draggable": "no-drag" } as React.CSSProperties}>
+            <MenubarMenu>
+                <MenubarTrigger className="cursor-pointer w-8 h-7 p-0 flex items-center justify-center hover:bg-muted transition-colors rounded data-[state=open]:bg-muted">
+                    <Settings className="w-3.5 h-3.5"/>
+                </MenubarTrigger>
+                <MenubarContent align="end" className="min-w-[200px]">
+                    <div className="flex items-center gap-1.5 px-2 py-1.5">
+                        <MenubarLabel className="p-0">SpotFetch API</MenubarLabel>
+                        <TooltipProvider delayDuration={300}>
+                            <Tooltip>
+                                <TooltipTrigger asChild>
+                                    <Info className="w-3.5 h-3.5 cursor-help text-muted-foreground"/>
+                                </TooltipTrigger>
+                                <TooltipContent side="left" className="max-w-xs">
+                                    <p className="font-semibold mb-2">Spotify Blocked Countries:</p>
+                                    <p className="text-xs">Afghanistan, Antarctica, Central African Republic, China, Cuba, Eritrea, Iran, Myanmar, North Korea, Russia, Somalia, South Sudan, Sudan, Syria, Turkmenistan, Yemen</p>
+                                </TooltipContent>
+                            </Tooltip>
+                        </TooltipProvider>
+                    </div>
+                    <MenubarSeparator />
+                    <MenubarItem onClick={handleSpotFetchAPIToggle} className="justify-between">
+                        <span>Use SpotFetch API</span>
+                        <span className="ml-4">{useSpotFetchAPI ? "✓" : ""}</span>
+                    </MenubarItem>
+                </MenubarContent>
+            </MenubarMenu>
+        </Menubar>
+        <button onClick={handleMinimize} className="w-8 h-7 flex items-center justify-center hover:bg-muted transition-colors rounded" style={{ "--wails-draggable": "no-drag" } as React.CSSProperties} aria-label="Minimize">
+          <Minus className="w-3.5 h-3.5"/>
         </button>
-        <button
-          onClick={handleMaximize}
-          className="w-8 h-7 flex items-center justify-center hover:bg-muted transition-colors rounded"
-          style={{ "--wails-draggable": "no-drag" } as React.CSSProperties}
-          aria-label="Maximize"
-        >
-          <Maximize className="w-3.5 h-3.5" />
+        <button onClick={handleMaximize} className="w-8 h-7 flex items-center justify-center hover:bg-muted transition-colors rounded" style={{ "--wails-draggable": "no-drag" } as React.CSSProperties} aria-label="Maximize">
+          <Maximize className="w-3.5 h-3.5"/>
         </button>
-        <button
-          onClick={handleClose}
-          className="w-8 h-7 flex items-center justify-center hover:bg-destructive hover:text-white transition-colors rounded"
-          style={{ "--wails-draggable": "no-drag" } as React.CSSProperties}
-          aria-label="Close"
-        >
-          <X className="w-3.5 h-3.5" />
+        <button onClick={handleClose} className="w-8 h-7 flex items-center justify-center hover:bg-destructive hover:text-white transition-colors rounded" style={{ "--wails-draggable": "no-drag" } as React.CSSProperties} aria-label="Close">
+          <X className="w-3.5 h-3.5"/>
         </button>
       </div>
-    </>
-  );
+    </>);
 }

frontend/src/components/TrackInfo.tsx

@@ -1,207 +1,158 @@
 import { Button } from "@/components/ui/button";
 import { Card, CardContent } from "@/components/ui/card";
-import { Download, FolderOpen, CheckCircle, XCircle, FileText, FileCheck, Globe, ImageDown } from "lucide-react";
+import { Download, FolderOpen, CheckCircle, XCircle, FileText, FileCheck, Globe, ImageDown, Play, Pause } from "lucide-react";
 import { Spinner } from "@/components/ui/spinner";
-import {
-  Tooltip,
-  TooltipContent,
-  TooltipTrigger,
-} from "@/components/ui/tooltip";
+import { Tooltip, TooltipContent, TooltipTrigger, } from "@/components/ui/tooltip";
 import type { TrackMetadata, TrackAvailability } from "@/types/api";
 import { TidalIcon, QobuzIcon, AmazonIcon } from "./PlatformIcons";
-
+import { usePreview } from "@/hooks/usePreview";
 interface TrackInfoProps {
-  track: TrackMetadata & { album_name: string; release_date: string };
-  isDownloading: boolean;
-  downloadingTrack: string | null;
-  isDownloaded: boolean;
-  isFailed: boolean;
-  isSkipped: boolean;
-  downloadingLyricsTrack?: string | null;
-  downloadedLyrics?: boolean;
-  failedLyrics?: boolean;
-  skippedLyrics?: boolean;
-  checkingAvailability?: boolean;
-  availability?: TrackAvailability;
-  downloadingCover?: boolean;
-  downloadedCover?: boolean;
-  failedCover?: boolean;
-  skippedCover?: boolean;
-  onDownload: (isrc: string, name: string, artists: string, albumName?: string, spotifyId?: string, playlistName?: string, durationMs?: number, position?: number, albumArtist?: string, releaseDate?: string, coverUrl?: string, spotifyTrackNumber?: number, spotifyDiscNumber?: number, spotifyTotalTracks?: number) => void;
-  onDownloadLyrics?: (spotifyId: string, name: string, artists: string, albumName?: string, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
-  onCheckAvailability?: (spotifyId: string, isrc?: string) => void;
-  onDownloadCover?: (coverUrl: string, trackName: string, artistName: string, albumName?: string, playlistName?: string, position?: number, trackId?: string, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
-  onOpenFolder: () => void;
+    track: TrackMetadata & {
+        album_name: string;
+        release_date: string;
+    };
+    isDownloading: boolean;
+    downloadingTrack: string | null;
+    isDownloaded: boolean;
+    isFailed: boolean;
+    isSkipped: boolean;
+    downloadingLyricsTrack?: string | null;
+    downloadedLyrics?: boolean;
+    failedLyrics?: boolean;
+    skippedLyrics?: boolean;
+    checkingAvailability?: boolean;
+    availability?: TrackAvailability;
+    downloadingCover?: boolean;
+    downloadedCover?: boolean;
+    failedCover?: boolean;
+    skippedCover?: boolean;
+    onDownload: (id: string, name: string, artists: string, albumName?: string, spotifyId?: string, playlistName?: string, durationMs?: number, position?: number, albumArtist?: string, releaseDate?: string, coverUrl?: string, spotifyTrackNumber?: number, spotifyDiscNumber?: number, spotifyTotalTracks?: number, spotifyTotalDiscs?: number, copyright?: string, publisher?: string) => void;
+    onDownloadLyrics?: (spotifyId: string, name: string, artists: string, albumName?: string, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
+    onCheckAvailability?: (spotifyId: string) => void;
+    onDownloadCover?: (coverUrl: string, trackName: string, artistName: string, albumName?: string, playlistName?: string, position?: number, trackId?: string, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
+    onOpenFolder: () => void;
+    onBack?: () => void;
 }
-
-export function TrackInfo({
-  track,
-  isDownloading,
-  downloadingTrack,
-  isDownloaded,
-  isFailed,
-  isSkipped,
-  downloadingLyricsTrack,
-  downloadedLyrics,
-  failedLyrics,
-  skippedLyrics,
-  checkingAvailability,
-  availability,
-  downloadingCover,
-  downloadedCover,
-  failedCover,
-  skippedCover,
-  onDownload,
-  onDownloadLyrics,
-  onCheckAvailability,
-  onDownloadCover,
-  onOpenFolder,
-}: TrackInfoProps) {
-  return (
-    <Card>
-      <CardContent className="px-6">
-        <div className="flex gap-6 items-start">
-          <div className="shrink-0">
-            {track.images && (
-              <img
-                src={track.images}
-                alt={track.name}
-                className="w-48 h-48 rounded-md shadow-lg object-cover"
-              />
-            )}
-          </div>
-          <div className="flex-1 space-y-4 min-w-0">
-            <div className="space-y-1">
-              <div className="flex items-center gap-3">
-                <h1 className="text-3xl font-bold wrap-break-word">{track.name}</h1>
-                {isSkipped ? (
-                  <FileCheck className="h-6 w-6 text-yellow-500 shrink-0" />
-                ) : isDownloaded ? (
-                  <CheckCircle className="h-6 w-6 text-green-500 shrink-0" />
-                ) : isFailed ? (
-                  <XCircle className="h-6 w-6 text-red-500 shrink-0" />
-                ) : null}
-              </div>
-              <p className="text-lg text-muted-foreground">{track.artists}</p>
+export function TrackInfo({ track, isDownloading, downloadingTrack, isDownloaded, isFailed, isSkipped, downloadingLyricsTrack, downloadedLyrics, failedLyrics, skippedLyrics, checkingAvailability, availability, downloadingCover, downloadedCover, failedCover, skippedCover, onDownload, onDownloadLyrics, onCheckAvailability, onDownloadCover, onOpenFolder, onBack, }: TrackInfoProps) {
+    const { playPreview, loadingPreview, playingTrack } = usePreview();
+    const formatDuration = (ms: number) => {
+        const minutes = Math.floor(ms / 60000);
+        const seconds = Math.floor((ms % 60000) / 1000);
+        return `${minutes}:${seconds.toString().padStart(2, "0")}`;
+    };
+    const formatPlays = (plays: string) => {
+        const num = parseInt(plays, 10);
+        if (isNaN(num))
+            return plays;
+        return num.toLocaleString();
+    };
+    return (<Card className="relative">
+    {onBack && (<div className="absolute top-4 right-4 z-10">
+        <Button variant="ghost" size="icon" onClick={onBack}>
+            <XCircle className="h-5 w-5"/>
+        </Button>
+    </div>)}
+    <CardContent className="px-6">
+      <div className="flex gap-6 items-start">
+        <div className="shrink-0">
+          {track.images && (<div className="relative w-48 h-48 rounded-md shadow-lg overflow-hidden">
+            <img src={track.images} alt={track.name} className="w-full h-full object-cover"/>
+            <div className="absolute bottom-1 right-1 bg-black/80 text-white px-1.5 py-0.5 text-xs font-medium rounded">
+              {formatDuration(track.duration_ms)}
             </div>
-            <div className="grid grid-cols-2 gap-3 text-sm">
+          </div>)}
+        </div>
+        <div className="flex-1 space-y-4 min-w-0">
+          <div className="space-y-1">
+            <div className="flex items-center gap-3">
+              <h1 className="text-3xl font-bold wrap-break-word">{track.name}</h1>
+              {track.is_explicit && (<span className="inline-flex items-center justify-center bg-red-600 text-white text-[10px] h-4 w-4 rounded shrink-0" title="Explicit">E</span>)}
+              {isSkipped ? (<FileCheck className="h-6 w-6 text-yellow-500 shrink-0"/>) : isDownloaded ? (<CheckCircle className="h-6 w-6 text-green-500 shrink-0"/>) : isFailed ? (<XCircle className="h-6 w-6 text-red-500 shrink-0"/>) : null}
+            </div>
+            <p className="text-lg text-muted-foreground">{track.artists}</p>
+          </div>
+          <div className="grid grid-cols-2 gap-3 text-sm">
+            <div className="space-y-1">
               <div>
                 <p className="text-xs text-muted-foreground">Album</p>
                 <p className="font-medium truncate">{track.album_name}</p>
               </div>
+              {track.plays && (<div>
+                <p className="text-xs text-muted-foreground">Total Plays</p>
+                <p className="font-medium">{formatPlays(track.plays)}</p>
+              </div>)}
+            </div>
+            <div className="space-y-1">
               <div>
                 <p className="text-xs text-muted-foreground">Release Date</p>
                 <p className="font-medium">{track.release_date}</p>
               </div>
+              {track.copyright && (<div>
+                <p className="text-xs text-muted-foreground">Copyright</p>
+                <p className="font-medium truncate" title={track.copyright}>
+                  {track.copyright}
+                </p>
+              </div>)}
             </div>
-            {track.isrc && (
-              <div className="flex gap-2 flex-wrap">
-                <Button
-                  onClick={() => onDownload(track.isrc, track.name, track.artists, track.album_name, track.spotify_id, undefined, track.duration_ms, track.track_number, track.album_artist, track.release_date, track.images, track.track_number, track.disc_number, track.total_tracks)}
-                  disabled={isDownloading || downloadingTrack === track.isrc}
-                >
-                  {downloadingTrack === track.isrc ? (
-                    <Spinner />
-                  ) : (
-                    <>
-                      <Download className="h-4 w-4" />
-                      Download
-                    </>
-                  )}
-                </Button>
-                {track.spotify_id && onDownloadLyrics && (
-                  <Tooltip>
-                    <TooltipTrigger asChild>
-                      <Button
-                        onClick={() => onDownloadLyrics(track.spotify_id!, track.name, track.artists, track.album_name, track.album_artist, track.release_date, track.disc_number)}
-                        variant="outline"
-                        disabled={downloadingLyricsTrack === track.spotify_id}
-                      >
-                        {downloadingLyricsTrack === track.spotify_id ? (
-                          <Spinner />
-                        ) : skippedLyrics ? (
-                          <FileCheck className="h-4 w-4 text-yellow-500" />
-                        ) : downloadedLyrics ? (
-                          <CheckCircle className="h-4 w-4 text-green-500" />
-                        ) : failedLyrics ? (
-                          <XCircle className="h-4 w-4 text-red-500" />
-                        ) : (
-                          <FileText className="h-4 w-4" />
-                        )}
-                      </Button>
-                    </TooltipTrigger>
-                    <TooltipContent>
-                      <p>Download Lyric</p>
-                    </TooltipContent>
-                  </Tooltip>
-                )}
-                {track.images && onDownloadCover && (
-                  <Tooltip>
-                    <TooltipTrigger asChild>
-                      <Button
-                        onClick={() => onDownloadCover(track.images, track.name, track.artists, track.album_name, undefined, undefined, track.spotify_id, track.album_artist, track.release_date, track.disc_number)}
-                        variant="outline"
-                        disabled={downloadingCover}
-                      >
-                        {downloadingCover ? (
-                          <Spinner />
-                        ) : skippedCover ? (
-                          <FileCheck className="h-4 w-4 text-yellow-500" />
-                        ) : downloadedCover ? (
-                          <CheckCircle className="h-4 w-4 text-green-500" />
-                        ) : failedCover ? (
-                          <XCircle className="h-4 w-4 text-red-500" />
-                        ) : (
-                          <ImageDown className="h-4 w-4" />
-                        )}
-                      </Button>
-                    </TooltipTrigger>
-                    <TooltipContent>
-                      <p>Download Cover</p>
-                    </TooltipContent>
-                  </Tooltip>
-                )}
-                {track.spotify_id && onCheckAvailability && (
-                  <Tooltip>
-                    <TooltipTrigger asChild>
-                      <Button
-                        onClick={() => onCheckAvailability(track.spotify_id!, track.isrc)}
-                        variant="outline"
-                        disabled={checkingAvailability}
-                      >
-                        {checkingAvailability ? (
-                          <Spinner />
-                        ) : availability ? (
-                          <CheckCircle className="h-4 w-4 text-green-500" />
-                        ) : (
-                          <Globe className="h-4 w-4" />
-                        )}
-                      </Button>
-                    </TooltipTrigger>
-                    <TooltipContent>
-                      {availability ? (
-                        <div className="flex items-center gap-2">
-                          <TidalIcon className={`w-4 h-4 ${availability.tidal ? "text-green-500" : "text-red-500"}`} />
-                          <QobuzIcon className={`w-4 h-4 ${availability.qobuz ? "text-green-500" : "text-red-500"}`} />
-                          <AmazonIcon className={`w-4 h-4 ${availability.amazon ? "text-green-500" : "text-red-500"}`} />
-                        </div>
-                      ) : (
-                        <p>Check Availability</p>
-                      )}
-                    </TooltipContent>
-                  </Tooltip>
-                )}
-                {isDownloaded && (
-                  <Button onClick={onOpenFolder} variant="outline">
-                    <FolderOpen className="h-4 w-4" />
-                    Open Folder
-                  </Button>
-                )}
-              </div>
-            )}
           </div>
+          {track.spotify_id && (<div className="flex gap-2 flex-wrap">
+            <Button onClick={() => onDownload(track.spotify_id || "", track.name, track.artists, track.album_name, track.spotify_id, undefined, track.duration_ms, track.track_number, track.album_artist, track.release_date, track.images, track.track_number, track.disc_number, track.total_tracks, track.total_discs, track.copyright, track.publisher)} disabled={isDownloading || downloadingTrack === track.spotify_id}>
+              {downloadingTrack === track.spotify_id ? (<Spinner />) : (<>
+                <Download className="h-4 w-4"/>
+                Download
+              </>)}
+            </Button>
+            {track.spotify_id && (<Tooltip>
+              <TooltipTrigger asChild>
+                <Button onClick={() => playPreview(track.spotify_id!, track.name)} variant="outline" size="icon" disabled={loadingPreview === track.spotify_id}>
+                  {loadingPreview === track.spotify_id ? (<Spinner />) : playingTrack === track.spotify_id ? (<Pause className="h-4 w-4"/>) : (<Play className="h-4 w-4"/>)}
+                </Button>
+              </TooltipTrigger>
+              <TooltipContent>
+                <p>{playingTrack === track.spotify_id ? "Stop Preview" : "Play Preview"}</p>
+              </TooltipContent>
+            </Tooltip>)}
+            {track.spotify_id && onDownloadLyrics && (<Tooltip>
+              <TooltipTrigger asChild>
+                <Button onClick={() => onDownloadLyrics(track.spotify_id!, track.name, track.artists, track.album_name, track.album_artist, track.release_date, track.disc_number)} variant="outline" size="icon" disabled={downloadingLyricsTrack === track.spotify_id}>
+                  {downloadingLyricsTrack === track.spotify_id ? (<Spinner />) : skippedLyrics ? (<FileCheck className="h-4 w-4 text-yellow-500"/>) : downloadedLyrics ? (<CheckCircle className="h-4 w-4 text-green-500"/>) : failedLyrics ? (<XCircle className="h-4 w-4 text-red-500"/>) : (<FileText className="h-4 w-4"/>)}
+                </Button>
+              </TooltipTrigger>
+              <TooltipContent>
+                <p>Download Lyric</p>
+              </TooltipContent>
+            </Tooltip>)}
+            {track.images && onDownloadCover && (<Tooltip>
+              <TooltipTrigger asChild>
+                <Button onClick={() => onDownloadCover(track.images, track.name, track.artists, track.album_name, undefined, undefined, track.spotify_id, track.album_artist, track.release_date, track.disc_number)} variant="outline" size="icon" disabled={downloadingCover}>
+                  {downloadingCover ? (<Spinner />) : skippedCover ? (<FileCheck className="h-4 w-4 text-yellow-500"/>) : downloadedCover ? (<CheckCircle className="h-4 w-4 text-green-500"/>) : failedCover ? (<XCircle className="h-4 w-4 text-red-500"/>) : (<ImageDown className="h-4 w-4"/>)}
+                </Button>
+              </TooltipTrigger>
+              <TooltipContent>
+                <p>Download Cover</p>
+              </TooltipContent>
+            </Tooltip>)}
+            {track.spotify_id && onCheckAvailability && (<Tooltip>
+              <TooltipTrigger asChild>
+                <Button onClick={() => onCheckAvailability(track.spotify_id!)} variant="outline" size="icon" disabled={checkingAvailability}>
+                  {checkingAvailability ? (<Spinner />) : availability ? (<CheckCircle className="h-4 w-4 text-green-500"/>) : (<Globe className="h-4 w-4"/>)}
+                </Button>
+              </TooltipTrigger>
+              <TooltipContent>
+                {availability ? (<div className="flex items-center gap-2">
+                  <TidalIcon className={`w-4 h-4 ${availability.tidal ? "text-green-500" : "text-red-500"}`}/>
+                  <QobuzIcon className={`w-4 h-4 ${availability.qobuz ? "text-green-500" : "text-red-500"}`}/>
+                  <AmazonIcon className={`w-4 h-4 ${availability.amazon ? "text-green-500" : "text-red-500"}`}/>
+                </div>) : (<p>Check Availability</p>)}
+              </TooltipContent>
+            </Tooltip>)}
+            {isDownloaded && (<Button onClick={onOpenFolder} variant="outline">
+              <FolderOpen className="h-4 w-4"/>
+              Open Folder
+            </Button>)}
+          </div>)}
         </div>
-      </CardContent>
-    </Card>
-  );
+      </div>
+    </CardContent>
+  </Card>);
 }

frontend/src/components/TrackList.tsx

@@ -1,487 +1,371 @@
 import { Button } from "@/components/ui/button";
 import { Checkbox } from "@/components/ui/checkbox";
-import { Download, CheckCircle, XCircle, FileCheck, FileText, Globe, ImageDown } from "lucide-react";
+import { Download, CheckCircle, XCircle, FileCheck, FileText, Globe, ImageDown, Play, Pause } from "lucide-react";
 import { Spinner } from "@/components/ui/spinner";
-import {
-  Tooltip,
-  TooltipContent,
-  TooltipTrigger,
-} from "@/components/ui/tooltip";
-import {
-  Pagination,
-  PaginationContent,
-  PaginationItem,
-  PaginationLink,
-  PaginationNext,
-  PaginationPrevious,
-} from "@/components/ui/pagination";
+import { Tooltip, TooltipContent, TooltipTrigger, } from "@/components/ui/tooltip";
+import { Pagination, PaginationContent, PaginationEllipsis, PaginationItem, PaginationLink, PaginationNext, PaginationPrevious, } from "@/components/ui/pagination";
 import type { TrackMetadata, TrackAvailability } from "@/types/api";
 import { TidalIcon, QobuzIcon, AmazonIcon } from "./PlatformIcons";
-
+import { usePreview } from "@/hooks/usePreview";
 interface TrackListProps {
-  tracks: TrackMetadata[];
-  searchQuery: string;
-  sortBy: string;
-  selectedTracks: string[];
-  downloadedTracks: Set<string>;
-  failedTracks: Set<string>;
-  skippedTracks: Set<string>;
-  downloadingTrack: string | null;
-  isDownloading: boolean;
-  currentPage: number;
-  itemsPerPage: number;
-  showCheckboxes?: boolean;
-  hideAlbumColumn?: boolean;
-  folderName?: string;
-  isArtistDiscography?: boolean;
-  // Lyrics props
-  downloadedLyrics?: Set<string>;
-  failedLyrics?: Set<string>;
-  skippedLyrics?: Set<string>;
-  downloadingLyricsTrack?: string | null;
-  // Availability props
-  checkingAvailabilityTrack?: string | null;
-  availabilityMap?: Map<string, TrackAvailability>;
-  // Cover props
-  downloadedCovers?: Set<string>;
-  failedCovers?: Set<string>;
-  skippedCovers?: Set<string>;
-  downloadingCoverTrack?: string | null;
-  onToggleTrack: (isrc: string) => void;
-  onToggleSelectAll: (tracks: TrackMetadata[]) => void;
-  onDownloadTrack: (isrc: string, name: string, artists: string, albumName: string, spotifyId?: string, folderName?: string, durationMs?: number, position?: number, albumArtist?: string, releaseDate?: string, coverUrl?: string, spotifyTrackNumber?: number, spotifyDiscNumber?: number, spotifyTotalTracks?: number) => void;
-  onDownloadLyrics?: (spotifyId: string, name: string, artists: string, albumName: string, folderName?: string, isArtistDiscography?: boolean, position?: number, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
-  onCheckAvailability?: (spotifyId: string, isrc?: string) => void;
-  onDownloadCover?: (coverUrl: string, trackName: string, artistName: string, albumName: string, folderName?: string, isArtistDiscography?: boolean, position?: number, trackId?: string, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
-  onPageChange: (page: number) => void;
-  onAlbumClick?: (album: { id: string; name: string; external_urls: string }) => void;
-  onArtistClick?: (artist: { id: string; name: string; external_urls: string }) => void;
-  onTrackClick?: (track: TrackMetadata) => void;
+    tracks: TrackMetadata[];
+    searchQuery: string;
+    sortBy: string;
+    selectedTracks: string[];
+    downloadedTracks: Set<string>;
+    failedTracks: Set<string>;
+    skippedTracks: Set<string>;
+    downloadingTrack: string | null;
+    isDownloading: boolean;
+    currentPage: number;
+    itemsPerPage: number;
+    showCheckboxes?: boolean;
+    hideAlbumColumn?: boolean;
+    folderName?: string;
+    isArtistDiscography?: boolean;
+    downloadedLyrics?: Set<string>;
+    failedLyrics?: Set<string>;
+    skippedLyrics?: Set<string>;
+    downloadingLyricsTrack?: string | null;
+    checkingAvailabilityTrack?: string | null;
+    availabilityMap?: Map<string, TrackAvailability>;
+    downloadedCovers?: Set<string>;
+    failedCovers?: Set<string>;
+    skippedCovers?: Set<string>;
+    downloadingCoverTrack?: string | null;
+    onToggleTrack: (id: string) => void;
+    onToggleSelectAll: (tracks: TrackMetadata[]) => void;
+    onDownloadTrack: (id: string, name: string, artists: string, albumName: string, spotifyId?: string, folderName?: string, durationMs?: number, position?: number, albumArtist?: string, releaseDate?: string, coverUrl?: string, spotifyTrackNumber?: number, spotifyDiscNumber?: number, spotifyTotalTracks?: number, spotifyTotalDiscs?: number, copyright?: string, publisher?: string) => void;
+    onDownloadLyrics?: (spotifyId: string, name: string, artists: string, albumName: string, folderName?: string, isArtistDiscography?: boolean, position?: number, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
+    onCheckAvailability?: (spotifyId: string) => void;
+    onDownloadCover?: (coverUrl: string, trackName: string, artistName: string, albumName: string, folderName?: string, isArtistDiscography?: boolean, position?: number, trackId?: string, albumArtist?: string, releaseDate?: string, discNumber?: number) => void;
+    onPageChange: (page: number) => void;
+    onAlbumClick?: (album: {
+        id: string;
+        name: string;
+        external_urls: string;
+    }) => void;
+    onArtistClick?: (artist: {
+        id: string;
+        name: string;
+        external_urls: string;
+    }) => void;
+    onTrackClick?: (track: TrackMetadata) => void;
 }
-
-export function TrackList({
-  tracks,
-  searchQuery,
-  sortBy,
-  selectedTracks,
-  downloadedTracks,
-  failedTracks,
-  skippedTracks,
-  downloadingTrack,
-  isDownloading,
-  currentPage,
-  itemsPerPage,
-  showCheckboxes = false,
-  hideAlbumColumn = false,
-  folderName,
-  isArtistDiscography = false,
-  downloadedLyrics,
-  failedLyrics,
-  skippedLyrics,
-  downloadingLyricsTrack,
-  checkingAvailabilityTrack,
-  availabilityMap,
-  downloadedCovers,
-  failedCovers,
-  skippedCovers,
-  downloadingCoverTrack,
-  onToggleTrack,
-  onToggleSelectAll,
-  onDownloadTrack,
-  onDownloadLyrics,
-  onCheckAvailability,
-  onDownloadCover,
-  onPageChange,
-  onAlbumClick,
-  onArtistClick,
-  onTrackClick,
-}: TrackListProps) {
-  let filteredTracks = tracks.filter((track) => {
-    if (!searchQuery) return true;
-    const query = searchQuery.toLowerCase();
-    return (
-      track.name.toLowerCase().includes(query) ||
-      track.artists.toLowerCase().includes(query) ||
-      track.album_name.toLowerCase().includes(query)
-    );
-  });
-
-  // Apply sorting
-  if (sortBy === "title-asc") {
-    filteredTracks = [...filteredTracks].sort((a, b) => a.name.localeCompare(b.name));
-  } else if (sortBy === "title-desc") {
-    filteredTracks = [...filteredTracks].sort((a, b) => b.name.localeCompare(a.name));
-  } else if (sortBy === "artist-asc") {
-    filteredTracks = [...filteredTracks].sort((a, b) => a.artists.localeCompare(b.artists));
-  } else if (sortBy === "artist-desc") {
-    filteredTracks = [...filteredTracks].sort((a, b) => b.artists.localeCompare(a.artists));
-  } else if (sortBy === "duration-asc") {
-    filteredTracks = [...filteredTracks].sort((a, b) => a.duration_ms - b.duration_ms);
-  } else if (sortBy === "duration-desc") {
-    filteredTracks = [...filteredTracks].sort((a, b) => b.duration_ms - a.duration_ms);
-  } else if (sortBy === "downloaded") {
-    filteredTracks = [...filteredTracks].sort((a, b) => {
-      const aDownloaded = downloadedTracks.has(a.isrc);
-      const bDownloaded = downloadedTracks.has(b.isrc);
-      return (bDownloaded ? 1 : 0) - (aDownloaded ? 1 : 0);
+export function TrackList({ tracks, searchQuery, sortBy, selectedTracks, downloadedTracks, failedTracks, skippedTracks, downloadingTrack, isDownloading, currentPage, itemsPerPage, showCheckboxes = false, hideAlbumColumn = false, folderName, isArtistDiscography = false, downloadedLyrics, failedLyrics, skippedLyrics, downloadingLyricsTrack, checkingAvailabilityTrack, availabilityMap, downloadedCovers, failedCovers, skippedCovers, downloadingCoverTrack, onToggleTrack, onToggleSelectAll, onDownloadTrack, onDownloadLyrics, onCheckAvailability, onDownloadCover, onPageChange, onAlbumClick, onArtistClick, onTrackClick, }: TrackListProps) {
+    const { playPreview, loadingPreview, playingTrack } = usePreview();
+    let filteredTracks = tracks.filter((track) => {
+        if (!searchQuery)
+            return true;
+        const query = searchQuery.toLowerCase();
+        return (track.name.toLowerCase().includes(query) ||
+            track.artists.toLowerCase().includes(query) ||
+            track.album_name.toLowerCase().includes(query));
     });
-  } else if (sortBy === "not-downloaded") {
-    filteredTracks = [...filteredTracks].sort((a, b) => {
-      const aDownloaded = downloadedTracks.has(a.isrc);
-      const bDownloaded = downloadedTracks.has(b.isrc);
-      return (aDownloaded ? 1 : 0) - (bDownloaded ? 1 : 0);
-    });
-  }
+    if (sortBy === "title-asc") {
+        filteredTracks = [...filteredTracks].sort((a, b) => a.name.localeCompare(b.name));
+    }
+    else if (sortBy === "title-desc") {
+        filteredTracks = [...filteredTracks].sort((a, b) => b.name.localeCompare(a.name));
+    }
+    else if (sortBy === "artist-asc") {
+        filteredTracks = [...filteredTracks].sort((a, b) => a.artists.localeCompare(b.artists));
+    }
+    else if (sortBy === "artist-desc") {
+        filteredTracks = [...filteredTracks].sort((a, b) => b.artists.localeCompare(a.artists));
+    }
+    else if (sortBy === "duration-asc") {
+        filteredTracks = [...filteredTracks].sort((a, b) => a.duration_ms - b.duration_ms);
+    }
+    else if (sortBy === "duration-desc") {
+        filteredTracks = [...filteredTracks].sort((a, b) => b.duration_ms - a.duration_ms);
+    }
+    else if (sortBy === "plays-asc") {
+        filteredTracks = [...filteredTracks].sort((a, b) => {
+            const aPlays = a.plays ? parseInt(a.plays, 10) : 0;
+            const bPlays = b.plays ? parseInt(b.plays, 10) : 0;
+            if (isNaN(aPlays))
+                return 1;
+            if (isNaN(bPlays))
+                return -1;
+            return aPlays - bPlays;
+        });
+    }
+    else if (sortBy === "plays-desc") {
+        filteredTracks = [...filteredTracks].sort((a, b) => {
+            const aPlays = a.plays ? parseInt(a.plays, 10) : 0;
+            const bPlays = b.plays ? parseInt(b.plays, 10) : 0;
+            if (isNaN(aPlays))
+                return 1;
+            if (isNaN(bPlays))
+                return -1;
+            return bPlays - aPlays;
+        });
+    }
+    else if (sortBy === "downloaded") {
+        filteredTracks = [...filteredTracks].sort((a, b) => {
+            const aDownloaded = a.spotify_id ? downloadedTracks.has(a.spotify_id) : false;
+            const bDownloaded = b.spotify_id ? downloadedTracks.has(b.spotify_id) : false;
+            return (bDownloaded ? 1 : 0) - (aDownloaded ? 1 : 0);
+        });
+    }
+    else if (sortBy === "not-downloaded") {
+        filteredTracks = [...filteredTracks].sort((a, b) => {
+            const aDownloaded = a.spotify_id ? downloadedTracks.has(a.spotify_id) : false;
+            const bDownloaded = b.spotify_id ? downloadedTracks.has(b.spotify_id) : false;
+            return (aDownloaded ? 1 : 0) - (bDownloaded ? 1 : 0);
+        });
+    }
+    const totalPages = Math.ceil(filteredTracks.length / itemsPerPage);
+    const startIndex = (currentPage - 1) * itemsPerPage;
+    const endIndex = startIndex + itemsPerPage;
+    const paginatedTracks = filteredTracks.slice(startIndex, endIndex);
+    const getPaginationPages = (current: number, total: number): (number | 'ellipsis')[] => {
+        if (total <= 10) {
+            return Array.from({ length: total }, (_, i) => i + 1);
+        }
+        const pages: (number | 'ellipsis')[] = [];
+        pages.push(1);
+        if (current <= 7) {
+            for (let i = 2; i <= 10; i++) {
+                pages.push(i);
+            }
+            pages.push('ellipsis');
+            pages.push(total);
+        }
+        else if (current >= total - 7) {
+            pages.push('ellipsis');
+            for (let i = total - 9; i <= total; i++) {
+                pages.push(i);
+            }
+        }
+        else {
+            pages.push('ellipsis');
+            pages.push(current - 1);
+            pages.push(current);
+            pages.push(current + 1);
+            pages.push('ellipsis');
+            pages.push(total);
+        }
+        return pages;
+    };
+    const tracksWithId = filteredTracks.filter((track) => track.spotify_id);
+    const allSelected = tracksWithId.length > 0 &&
+        tracksWithId.every((track) => selectedTracks.includes(track.spotify_id!));
+    const formatDuration = (ms: number) => {
+        const minutes = Math.floor(ms / 60000);
+        const seconds = Math.floor((ms % 60000) / 1000);
+        return `${minutes}:${seconds.toString().padStart(2, "0")}`;
+    };
+    const formatPlays = (plays: string | undefined) => {
+        if (!plays)
+            return "";
+        const num = parseInt(plays, 10);
+        if (isNaN(num))
+            return plays;
+        return num.toLocaleString();
+    };
+    return (<div className="space-y-4">
+    <div className="rounded-md border">
+      <div className="overflow-x-auto">
+        <table className="w-full">
+          <thead>
+            <tr className="border-b bg-muted/50">
+              {showCheckboxes && (<th className="h-12 px-4 text-left align-middle w-12">
+                <Checkbox checked={allSelected} onCheckedChange={() => onToggleSelectAll(filteredTracks)}/>
+              </th>)}
+              <th className="h-12 px-4 text-left align-middle font-medium text-muted-foreground w-12">
+                #
+              </th>
+              <th className="h-12 px-4 text-left align-middle font-medium text-muted-foreground">
+                Title
+              </th>
+              {!hideAlbumColumn && (<th className="h-12 px-4 text-left align-middle font-medium text-muted-foreground hidden md:table-cell">
+                Album
+              </th>)}
+              <th className="h-12 px-4 text-left align-middle font-medium text-muted-foreground hidden lg:table-cell w-24">
+                Duration
+              </th>
+              <th className="h-12 px-4 text-left align-middle font-medium text-muted-foreground hidden xl:table-cell w-32">
+                Plays
+              </th>
+              <th className="h-12 px-4 text-center align-middle font-medium text-muted-foreground w-32">
+                Actions
+              </th>
+            </tr>
+          </thead>
+          <tbody>
+            {paginatedTracks.map((track, index) => (<tr key={index} className="border-b transition-colors hover:bg-muted/50">
+              {showCheckboxes && (<td className="p-4 align-middle">
+                {track.spotify_id && (<Checkbox checked={selectedTracks.includes(track.spotify_id)} onCheckedChange={() => onToggleTrack(track.spotify_id!)}/>)}
+              </td>)}
+              <td className="p-4 align-middle text-sm text-muted-foreground">
+                <div className="flex flex-col items-center gap-0.5">
+                  <span>{startIndex + index + 1}</span>
+                  {track.status && (track.status === "UP" || track.status === "DOWN" || track.status === "NEW") && (<span className={`text-xs ${track.status === "UP"
+                    ? "text-green-500"
+                    : track.status === "DOWN"
+                        ? "text-red-500"
+                        : track.status === "NEW"
+                            ? "text-blue-500"
+                            : ""}`}>
+                    {track.status === "NEW" ? "●" : track.status === "UP" ? "▲" : "▼"}
+                  </span>)}
+                </div>
+              </td>
+              <td className="p-4 align-middle">
+                <div className="flex items-center gap-3">
+                  {track.images && (<img src={track.images} alt={track.name} className="w-10 h-10 rounded object-cover"/>)}
+                  <div className="flex flex-col">
+                    <div className="flex items-center gap-2">
+                      {onTrackClick ? (<span className="font-medium cursor-pointer hover:underline" onClick={() => onTrackClick(track)}>
+                        {track.name}
+                      </span>) : (<span className="font-medium">{track.name}</span>)}
+                      {track.is_explicit && (<span className="inline-flex items-center justify-center bg-red-600 text-white text-[10px] h-4 w-4 rounded shrink-0" title="Explicit">E</span>)}
 
-  const totalPages = Math.ceil(filteredTracks.length / itemsPerPage);
-  const startIndex = (currentPage - 1) * itemsPerPage;
-  const endIndex = startIndex + itemsPerPage;
-  const paginatedTracks = filteredTracks.slice(startIndex, endIndex);
-
-  const tracksWithIsrc = filteredTracks.filter((track) => track.isrc);
-  const allSelected =
-    tracksWithIsrc.length > 0 &&
-    tracksWithIsrc.every((track) => selectedTracks.includes(track.isrc));
-
-  const formatDuration = (ms: number) => {
-    const minutes = Math.floor(ms / 60000);
-    const seconds = Math.floor((ms % 60000) / 1000);
-    return `${minutes}:${seconds.toString().padStart(2, "0")}`;
-  };
-
-  return (
-    <div className="space-y-4">
-      <div className="rounded-md border">
-        <div className="overflow-x-auto">
-          <table className="w-full">
-            <thead>
-              <tr className="border-b bg-muted/50">
-                {showCheckboxes && (
-                  <th className="h-12 px-4 text-left align-middle w-12">
-                    <Checkbox
-                      checked={allSelected}
-                      onCheckedChange={() => onToggleSelectAll(filteredTracks)}
-                    />
-                  </th>
-                )}
-                <th className="h-12 px-4 text-left align-middle font-medium text-muted-foreground w-12">
-                  #
-                </th>
-                <th className="h-12 px-4 text-left align-middle font-medium text-muted-foreground">
-                  Title
-                </th>
-                {!hideAlbumColumn && (
-                  <th className="h-12 px-4 text-left align-middle font-medium text-muted-foreground hidden md:table-cell">
-                    Album
-                  </th>
-                )}
-                <th className="h-12 px-4 text-left align-middle font-medium text-muted-foreground hidden lg:table-cell w-24">
-                  Duration
-                </th>
-                <th className="h-12 px-4 text-center align-middle font-medium text-muted-foreground w-32">
-                  Actions
-                </th>
-              </tr>
-            </thead>
-            <tbody>
-              {paginatedTracks.map((track, index) => (
-                <tr key={index} className="border-b transition-colors hover:bg-muted/50">
-                  {showCheckboxes && (
-                    <td className="p-4 align-middle">
-                      {track.isrc && (
-                        <Checkbox
-                          checked={selectedTracks.includes(track.isrc)}
-                          onCheckedChange={() => onToggleTrack(track.isrc)}
-                        />
-                      )}
-                    </td>
-                  )}
-                  <td className="p-4 align-middle text-sm text-muted-foreground">
-                    {startIndex + index + 1}
-                  </td>
-                  <td className="p-4 align-middle">
-                    <div className="flex items-center gap-3">
-                      {track.images && (
-                        <img
-                          src={track.images}
-                          alt={track.name}
-                          className="w-10 h-10 rounded object-cover"
-                        />
-                      )}
-                      <div className="flex flex-col">
-                        <div className="flex items-center gap-2">
-                          {onTrackClick ? (
-                            <span
-                              className="font-medium cursor-pointer hover:underline"
-                              onClick={() => onTrackClick(track)}
-                            >
-                              {track.name}
-                            </span>
-                          ) : (
-                            <span className="font-medium">{track.name}</span>
-                          )}
-                          {skippedTracks.has(track.isrc) ? (
-                            <FileCheck className="h-4 w-4 text-yellow-500 shrink-0" />
-                          ) : downloadedTracks.has(track.isrc) ? (
-                            <CheckCircle className="h-4 w-4 text-green-500 shrink-0" />
-                          ) : failedTracks.has(track.isrc) ? (
-                            <XCircle className="h-4 w-4 text-red-500 shrink-0" />
-                          ) : null}
-                        </div>
-                        <span className="text-sm text-muted-foreground">
-                          {track.artists_data && track.artists_data.length > 0 ? (
-                            track.artists_data.map((artist, i, arr) => (
-                              <span key={artist.id}>
-                                {onArtistClick ? (
-                                  <span
-                                    className="cursor-pointer hover:underline"
-                                    onClick={() =>
-                                      onArtistClick({
-                                        id: artist.id,
-                                        name: artist.name,
-                                        external_urls: artist.external_urls,
-                                      })
-                                    }
-                                  >
-                                    {artist.name}
-                                  </span>
-                                ) : (
-                                  artist.name
-                                )}
-                                {i < arr.length - 1 && ", "}
-                              </span>
-                            ))
-                          ) : onArtistClick && track.artist_id && track.artist_url ? (
-                            <span
-                              className="cursor-pointer hover:underline"
-                              onClick={() =>
-                                onArtistClick({
-                                  id: track.artist_id!,
-                                  name: track.artists,
-                                  external_urls: track.artist_url!,
-                                })
-                              }
-                            >
-                              {track.artists}
-                            </span>
-                          ) : (
-                            track.artists
-                          )}
-                        </span>
-                      </div>
+                      {track.spotify_id && skippedTracks.has(track.spotify_id) ? (<FileCheck className="h-4 w-4 text-yellow-500 shrink-0"/>) : track.spotify_id && downloadedTracks.has(track.spotify_id) ? (<CheckCircle className="h-4 w-4 text-green-500 shrink-0"/>) : track.spotify_id && failedTracks.has(track.spotify_id) ? (<XCircle className="h-4 w-4 text-red-500 shrink-0"/>) : null}
                     </div>
-                  </td>
-                  {!hideAlbumColumn && (
-                    <td className="p-4 align-middle text-sm text-muted-foreground hidden md:table-cell">
-                      {onAlbumClick && track.album_id && track.album_url ? (
-                        <span
-                          className="cursor-pointer hover:underline"
-                          onClick={() =>
-                            onAlbumClick({
-                              id: track.album_id!,
-                              name: track.album_name,
-                              external_urls: track.album_url!,
-                            })
-                          }
-                        >
-                          {track.album_name}
-                        </span>
-                      ) : (
-                        track.album_name
-                      )}
-                    </td>
-                  )}
-                  <td className="p-4 align-middle text-sm text-muted-foreground hidden lg:table-cell">
-                    {formatDuration(track.duration_ms)}
-                  </td>
-                  <td className="p-4 align-middle text-center">
-                    <div className="flex items-center justify-center gap-1">
-                      {track.isrc && (
-                        <Tooltip>
-                          <TooltipTrigger asChild>
-                            <Button
-                              onClick={() =>
-                                onDownloadTrack(track.isrc, track.name, track.artists, track.album_name, track.spotify_id, folderName, track.duration_ms, startIndex + index + 1, track.album_artist, track.release_date, track.images, track.track_number, track.disc_number, track.total_tracks)
-                              }
-                              size="sm"
-                              disabled={isDownloading || downloadingTrack === track.isrc}
-                            >
-                              {downloadingTrack === track.isrc ? (
-                                <Spinner />
-                              ) : skippedTracks.has(track.isrc) ? (
-                                <FileCheck className="h-4 w-4" />
-                              ) : downloadedTracks.has(track.isrc) ? (
-                                <CheckCircle className="h-4 w-4" />
-                              ) : failedTracks.has(track.isrc) ? (
-                                <XCircle className="h-4 w-4" />
-                              ) : (
-                                <Download className="h-4 w-4" />
-                              )}
-                            </Button>
-                          </TooltipTrigger>
-                          <TooltipContent>
-                            {downloadingTrack === track.isrc ? (
-                              <p>Downloading...</p>
-                            ) : skippedTracks.has(track.isrc) ? (
-                              <p>Already exists</p>
-                            ) : downloadedTracks.has(track.isrc) ? (
-                              <p>Downloaded</p>
-                            ) : failedTracks.has(track.isrc) ? (
-                              <p>Failed</p>
-                            ) : (
-                              <p>Download Track</p>
-                            )}
-                          </TooltipContent>
-                        </Tooltip>
-                      )}
-                      {track.spotify_id && onDownloadLyrics && (
-                        <Tooltip>
-                          <TooltipTrigger asChild>
-                            <Button
-                              onClick={() =>
-                                onDownloadLyrics(track.spotify_id!, track.name, track.artists, track.album_name, folderName, isArtistDiscography, startIndex + index + 1, track.album_artist, track.release_date, track.disc_number)
-                              }
-                              size="sm"
-                              variant="outline"
-                              disabled={downloadingLyricsTrack === track.spotify_id}
-                            >
-                              {downloadingLyricsTrack === track.spotify_id ? (
-                                <Spinner />
-                              ) : skippedLyrics?.has(track.spotify_id) ? (
-                                <FileCheck className="h-4 w-4 text-yellow-500" />
-                              ) : downloadedLyrics?.has(track.spotify_id) ? (
-                                <CheckCircle className="h-4 w-4 text-green-500" />
-                              ) : failedLyrics?.has(track.spotify_id) ? (
-                                <XCircle className="h-4 w-4 text-red-500" />
-                              ) : (
-                                <FileText className="h-4 w-4" />
-                              )}
-                            </Button>
-                          </TooltipTrigger>
-                          <TooltipContent>
-                            <p>Download Lyric</p>
-                          </TooltipContent>
-                        </Tooltip>
-                      )}
-                      {track.images && onDownloadCover && (
-                        <Tooltip>
-                          <TooltipTrigger asChild>
-                            <Button
-                              onClick={() => {
-                                const trackId = track.spotify_id || `${track.name}-${track.artists}`;
-                                onDownloadCover(track.images, track.name, track.artists, track.album_name, folderName, isArtistDiscography, startIndex + index + 1, trackId, track.album_artist, track.release_date, track.disc_number);
-                              }}
-                              size="sm"
-                              variant="outline"
-                              disabled={downloadingCoverTrack === (track.spotify_id || `${track.name}-${track.artists}`)}
-                            >
-                              {downloadingCoverTrack === (track.spotify_id || `${track.name}-${track.artists}`) ? (
-                                <Spinner />
-                              ) : skippedCovers?.has(track.spotify_id || `${track.name}-${track.artists}`) ? (
-                                <FileCheck className="h-4 w-4 text-yellow-500" />
-                              ) : downloadedCovers?.has(track.spotify_id || `${track.name}-${track.artists}`) ? (
-                                <CheckCircle className="h-4 w-4 text-green-500" />
-                              ) : failedCovers?.has(track.spotify_id || `${track.name}-${track.artists}`) ? (
-                                <XCircle className="h-4 w-4 text-red-500" />
-                              ) : (
-                                <ImageDown className="h-4 w-4" />
-                              )}
-                            </Button>
-                          </TooltipTrigger>
-                          <TooltipContent>
-                            <p>Download Cover</p>
-                          </TooltipContent>
-                        </Tooltip>
-                      )}
-                      {track.spotify_id && onCheckAvailability && (
-                        <Tooltip>
-                          <TooltipTrigger asChild>
-                            <Button
-                              onClick={() => onCheckAvailability(track.spotify_id!, track.isrc)}
-                              size="sm"
-                              variant="outline"
-                              disabled={checkingAvailabilityTrack === track.spotify_id}
-                            >
-                              {checkingAvailabilityTrack === track.spotify_id ? (
-                                <Spinner />
-                              ) : availabilityMap?.has(track.spotify_id) ? (
-                                <CheckCircle className="h-4 w-4 text-green-500" />
-                              ) : (
-                                <Globe className="h-4 w-4" />
-                              )}
-                            </Button>
-                          </TooltipTrigger>
-                          <TooltipContent>
-                            {availabilityMap?.has(track.spotify_id) ? (
-                              <div className="flex items-center gap-2">
-                                <TidalIcon className={`w-4 h-4 ${availabilityMap.get(track.spotify_id)?.tidal ? "text-green-500" : "text-red-500"}`} />
-                                <QobuzIcon className={`w-4 h-4 ${availabilityMap.get(track.spotify_id)?.qobuz ? "text-green-500" : "text-red-500"}`} />
-                                <AmazonIcon className={`w-4 h-4 ${availabilityMap.get(track.spotify_id)?.amazon ? "text-green-500" : "text-red-500"}`} />
-                              </div>
-                            ) : (
-                              <p>Check Availability</p>
-                            )}
-                          </TooltipContent>
-                        </Tooltip>
-                      )}
-                    </div>
-                  </td>
-                </tr>
-              ))}
-            </tbody>
-          </table>
-        </div>
+                    <span className="text-sm text-muted-foreground">
+                      {track.artists_data && track.artists_data.length > 0 ? ((() => {
+                const artistNames = track.artists.split(", ").map(name => name.trim());
+                return artistNames.map((name, i) => {
+                    const artistData = track.artists_data![i];
+                    const hasArtistData = artistData && artistData.id && artistData.external_urls;
+                    return (<span key={artistData?.id || i}>
+                            {onArtistClick && hasArtistData ? (<span className="cursor-pointer hover:underline" onClick={() => onArtistClick({
+                                id: artistData.id,
+                                name: name,
+                                external_urls: artistData.external_urls,
+                            })}>
+                              {name}
+                            </span>) : (name)}
+                            {i < artistNames.length - 1 && ", "}
+                          </span>);
+                });
+            })()) : onArtistClick && track.artist_id && track.artist_url ? (<span className="cursor-pointer hover:underline" onClick={() => onArtistClick({
+                    id: track.artist_id!,
+                    name: track.artists,
+                    external_urls: track.artist_url!,
+                })}>
+                        {track.artists}
+                      </span>) : (track.artists)}
+                    </span>
+                  </div>
+                </div>
+              </td>
+              {!hideAlbumColumn && (<td className="p-4 align-middle text-sm text-muted-foreground hidden md:table-cell">
+                {onAlbumClick && track.album_id && track.album_url ? (<span className="cursor-pointer hover:underline" onClick={() => onAlbumClick({
+                        id: track.album_id!,
+                        name: track.album_name,
+                        external_urls: track.album_url!,
+                    })}>
+                  {track.album_name}
+                </span>) : (track.album_name)}
+              </td>)}
+              <td className="p-4 align-middle text-sm text-muted-foreground hidden lg:table-cell">
+                {formatDuration(track.duration_ms)}
+              </td>
+              <td className="p-4 align-middle text-sm text-muted-foreground hidden xl:table-cell">
+                {track.plays ? formatPlays(track.plays) : ""}
+              </td>
+              <td className="p-4 align-middle text-center">
+                <div className="flex items-center justify-center gap-1">
+                  {track.spotify_id && (<Tooltip>
+                    <TooltipTrigger asChild>
+                      <Button onClick={() => onDownloadTrack(track.spotify_id!, track.name, track.artists, track.album_name, track.spotify_id, folderName, track.duration_ms, startIndex + index + 1, track.album_artist, track.release_date, track.images, track.track_number, track.disc_number, track.total_tracks, track.total_discs, track.copyright, track.publisher)} size="icon" disabled={isDownloading || downloadingTrack === track.spotify_id}>
+                        {downloadingTrack === track.spotify_id ? (<Spinner />) : skippedTracks.has(track.spotify_id) ? (<FileCheck className="h-4 w-4"/>) : downloadedTracks.has(track.spotify_id) ? (<CheckCircle className="h-4 w-4"/>) : failedTracks.has(track.spotify_id) ? (<XCircle className="h-4 w-4"/>) : (<Download className="h-4 w-4"/>)}
+                      </Button>
+                    </TooltipTrigger>
+                    <TooltipContent>
+                      {downloadingTrack === track.spotify_id ? (<p>Downloading...</p>) : skippedTracks.has(track.spotify_id) ? (<p>Already exists</p>) : downloadedTracks.has(track.spotify_id) ? (<p>Downloaded</p>) : failedTracks.has(track.spotify_id) ? (<p>Failed</p>) : (<p>Download Track</p>)}
+                    </TooltipContent>
+                  </Tooltip>)}
+                  {track.spotify_id && (<Tooltip>
+                    <TooltipTrigger asChild>
+                      <Button onClick={() => playPreview(track.spotify_id!, track.name)} size="icon" variant="outline" disabled={loadingPreview === track.spotify_id}>
+                        {loadingPreview === track.spotify_id ? (<Spinner />) : playingTrack === track.spotify_id ? (<Pause className="h-4 w-4"/>) : (<Play className="h-4 w-4"/>)}
+                      </Button>
+                    </TooltipTrigger>
+                    <TooltipContent>
+                      <p>{playingTrack === track.spotify_id ? "Stop Preview" : "Play Preview"}</p>
+                    </TooltipContent>
+                  </Tooltip>)}
+                  {track.spotify_id && onDownloadLyrics && (<Tooltip>
+                    <TooltipTrigger asChild>
+                      <Button onClick={() => onDownloadLyrics(track.spotify_id!, track.name, track.artists, track.album_name, folderName, isArtistDiscography, startIndex + index + 1, track.album_artist, track.release_date, track.disc_number)} size="icon" variant="outline" disabled={downloadingLyricsTrack === track.spotify_id}>
+                        {downloadingLyricsTrack === track.spotify_id ? (<Spinner />) : skippedLyrics?.has(track.spotify_id) ? (<FileCheck className="h-4 w-4 text-yellow-500"/>) : downloadedLyrics?.has(track.spotify_id) ? (<CheckCircle className="h-4 w-4 text-green-500"/>) : failedLyrics?.has(track.spotify_id) ? (<XCircle className="h-4 w-4 text-red-500"/>) : (<FileText className="h-4 w-4"/>)}
+                      </Button>
+                    </TooltipTrigger>
+                    <TooltipContent>
+                      <p>Download Lyric</p>
+                    </TooltipContent>
+                  </Tooltip>)}
+                  {track.images && onDownloadCover && (<Tooltip>
+                    <TooltipTrigger asChild>
+                      <Button onClick={() => {
+                    const trackId = track.spotify_id || `${track.name}-${track.artists}`;
+                    onDownloadCover(track.images, track.name, track.artists, track.album_name, folderName, isArtistDiscography, startIndex + index + 1, trackId, track.album_artist, track.release_date, track.disc_number);
+                }} size="icon" variant="outline" disabled={downloadingCoverTrack === (track.spotify_id || `${track.name}-${track.artists}`)}>
+                        {downloadingCoverTrack === (track.spotify_id || `${track.name}-${track.artists}`) ? (<Spinner />) : skippedCovers?.has(track.spotify_id || `${track.name}-${track.artists}`) ? (<FileCheck className="h-4 w-4 text-yellow-500"/>) : downloadedCovers?.has(track.spotify_id || `${track.name}-${track.artists}`) ? (<CheckCircle className="h-4 w-4 text-green-500"/>) : failedCovers?.has(track.spotify_id || `${track.name}-${track.artists}`) ? (<XCircle className="h-4 w-4 text-red-500"/>) : (<ImageDown className="h-4 w-4"/>)}
+                      </Button>
+                    </TooltipTrigger>
+                    <TooltipContent>
+                      <p>Download Cover</p>
+                    </TooltipContent>
+                  </Tooltip>)}
+                  {track.spotify_id && onCheckAvailability && (<Tooltip>
+                    <TooltipTrigger asChild>
+                      <Button onClick={() => onCheckAvailability(track.spotify_id!)} size="icon" variant="outline" disabled={checkingAvailabilityTrack === track.spotify_id}>
+                        {checkingAvailabilityTrack === track.spotify_id ? (<Spinner />) : availabilityMap?.has(track.spotify_id) ? (<CheckCircle className="h-4 w-4 text-green-500"/>) : (<Globe className="h-4 w-4"/>)}
+                      </Button>
+                    </TooltipTrigger>
+                    <TooltipContent>
+                      {availabilityMap?.has(track.spotify_id) ? (<div className="flex items-center gap-2">
+                        <TidalIcon className={`w-4 h-4 ${availabilityMap.get(track.spotify_id)?.tidal ? "text-green-500" : "text-red-500"}`}/>
+                        <QobuzIcon className={`w-4 h-4 ${availabilityMap.get(track.spotify_id)?.qobuz ? "text-green-500" : "text-red-500"}`}/>
+                        <AmazonIcon className={`w-4 h-4 ${availabilityMap.get(track.spotify_id)?.amazon ? "text-green-500" : "text-red-500"}`}/>
+                      </div>) : (<p>Check Availability</p>)}
+                    </TooltipContent>
+                  </Tooltip>)}
+                </div>
+              </td>
+            </tr>))}
+          </tbody>
+        </table>
       </div>
+    </div>
 
-      {totalPages > 1 && (
-        <Pagination>
-          <PaginationContent>
-            <PaginationItem>
-              <PaginationPrevious
-                href="#"
-                onClick={(e) => {
-                  e.preventDefault();
-                  if (currentPage > 1) onPageChange(currentPage - 1);
-                }}
-                className={
-                  currentPage === 1 ? "pointer-events-none opacity-50" : "cursor-pointer"
-                }
-              />
-            </PaginationItem>
+    {totalPages > 1 && (<Pagination>
+      <PaginationContent>
+        <PaginationItem>
+          <PaginationPrevious href="#" onClick={(e) => {
+                e.preventDefault();
+                if (currentPage > 1)
+                    onPageChange(currentPage - 1);
+            }} className={currentPage === 1 ? "pointer-events-none opacity-50" : "cursor-pointer"}/>
+        </PaginationItem>
 
-            {Array.from({ length: totalPages }, (_, i) => i + 1).map((page) => (
-              <PaginationItem key={page}>
-                <PaginationLink
-                  href="#"
-                  onClick={(e) => {
+        {getPaginationPages(currentPage, totalPages).map((page, index) => (page === 'ellipsis' ? (<PaginationItem key={`ellipsis-${index}`}>
+              <PaginationEllipsis />
+            </PaginationItem>) : (<PaginationItem key={page}>
+              <PaginationLink href="#" onClick={(e) => {
                     e.preventDefault();
                     onPageChange(page);
-                  }}
-                  isActive={currentPage === page}
-                  className="cursor-pointer"
-                >
-                  {page}
-                </PaginationLink>
-              </PaginationItem>
-            ))}
+                }} isActive={currentPage === page} className="cursor-pointer">
+                {page}
+              </PaginationLink>
+            </PaginationItem>)))}
 
-            <PaginationItem>
-              <PaginationNext
-                href="#"
-                onClick={(e) => {
-                  e.preventDefault();
-                  if (currentPage < totalPages) onPageChange(currentPage + 1);
-                }}
-                className={
-                  currentPage === totalPages
-                    ? "pointer-events-none opacity-50"
-                    : "cursor-pointer"
-                }
-              />
-            </PaginationItem>
-          </PaginationContent>
-        </Pagination>
-      )}
-    </div>
-  );
+        <PaginationItem>
+          <PaginationNext href="#" onClick={(e) => {
+                e.preventDefault();
+                if (currentPage < totalPages)
+                    onPageChange(currentPage + 1);
+            }} className={currentPage === totalPages
+                ? "pointer-events-none opacity-50"
+                : "cursor-pointer"}/>
+        </PaginationItem>
+      </PaginationContent>
+    </Pagination>)}
+  </div>);
 }

frontend/src/components/ui/activity.tsx

@@ -1,104 +1,63 @@
 'use client';
-
 import type { Variants } from 'motion/react';
 import type { HTMLAttributes } from 'react';
 import { forwardRef, useCallback, useImperativeHandle, useRef } from 'react';
 import { motion, useAnimation } from 'motion/react';
-
 import { cn } from '@/lib/utils';
-
 export interface ActivityIconHandle {
-  startAnimation: () => void;
-  stopAnimation: () => void;
+    startAnimation: () => void;
+    stopAnimation: () => void;
 }
-
 interface ActivityIconProps extends HTMLAttributes<HTMLDivElement> {
-  size?: number;
+    size?: number;
 }
-
 const PATH_VARIANTS: Variants = {
-  normal: {
-    pathLength: 1,
-    opacity: 1,
-    pathOffset: 0,
-  },
-  animate: {
-    pathLength: [0, 1],
-    opacity: [0, 1],
-    pathOffset: [1, 0],
-    transition: {
-      duration: 0.8,
-      ease: 'easeInOut',
+    normal: {
+        pathLength: 1,
+        opacity: 1,
+        pathOffset: 0,
+    },
+    animate: {
+        pathLength: [0, 1],
+        opacity: [0, 1],
+        pathOffset: [1, 0],
+        transition: {
+            duration: 0.8,
+            ease: 'easeInOut',
+        },
     },
-  },
 };
-
-const ActivityIcon = forwardRef<ActivityIconHandle, ActivityIconProps>(
-  ({ onMouseEnter, onMouseLeave, className, size = 28, ...props }, ref) => {
+const ActivityIcon = forwardRef<ActivityIconHandle, ActivityIconProps>(({ onMouseEnter, onMouseLeave, className, size = 28, ...props }, ref) => {
     const controls = useAnimation();
     const isControlledRef = useRef(false);
-
     useImperativeHandle(ref, () => {
-      isControlledRef.current = true;
-
-      return {
-        startAnimation: () => controls.start('animate'),
-        stopAnimation: () => controls.start('normal'),
-      };
+        isControlledRef.current = true;
+        return {
+            startAnimation: () => controls.start('animate'),
+            stopAnimation: () => controls.start('normal'),
+        };
     });
-
-    const handleMouseEnter = useCallback(
-      (e: React.MouseEvent<HTMLDivElement>) => {
+    const handleMouseEnter = useCallback((e: React.MouseEvent<HTMLDivElement>) => {
         if (!isControlledRef.current) {
-          controls.start('animate');
-        } else {
-          onMouseEnter?.(e);
+            controls.start('animate');
         }
-      },
-      [controls, onMouseEnter]
-    );
-
-    const handleMouseLeave = useCallback(
-      (e: React.MouseEvent<HTMLDivElement>) => {
+        else {
+            onMouseEnter?.(e);
+        }
+    }, [controls, onMouseEnter]);
+    const handleMouseLeave = useCallback((e: React.MouseEvent<HTMLDivElement>) => {
         if (!isControlledRef.current) {
-          controls.start('normal');
-        } else {
-          onMouseLeave?.(e);
+            controls.start('normal');
         }
-      },
-      [controls, onMouseLeave]
-    );
-
-    return (
-      <div
-        className={cn(className)}
-        onMouseEnter={handleMouseEnter}
-        onMouseLeave={handleMouseLeave}
-        {...props}
-      >
-        <svg
-          xmlns="http://www.w3.org/2000/svg"
-          width={size}
-          height={size}
-          viewBox="0 0 24 24"
-          fill="none"
-          stroke="currentColor"
-          strokeWidth="2"
-          strokeLinecap="round"
-          strokeLinejoin="round"
-        >
-          <motion.path
-            d="M22 12h-2.48a2 2 0 0 0-1.93 1.46l-2.35 8.36a.25.25 0 0 1-.48 0L9.24 2.18a.25.25 0 0 0-.48 0l-2.35 8.36A2 2 0 0 1 4.49 12H2"
-            variants={PATH_VARIANTS}
-            animate={controls}
-            initial="normal"
-          />
+        else {
+            onMouseLeave?.(e);
+        }
+    }, [controls, onMouseLeave]);
+    return (<div className={cn(className)} onMouseEnter={handleMouseEnter} onMouseLeave={handleMouseLeave} {...props}>
+        <svg xmlns="http://www.w3.org/2000/svg" width={size} height={size} viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+          <motion.path d="M22 12h-2.48a2 2 0 0 0-1.93 1.46l-2.35 8.36a.25.25 0 0 1-.48 0L9.24 2.18a.25.25 0 0 0-.48 0l-2.35 8.36A2 2 0 0 1 4.49 12H2" variants={PATH_VARIANTS} animate={controls} initial="normal"/>
         </svg>
-      </div>
-    );
-  }
-);
-
+      </div>);
+});
 ActivityIcon.displayName = 'ActivityIcon';
-
 export { ActivityIcon };

frontend/src/components/ui/badge-alert.tsx

@@ -0,0 +1,61 @@
+"use client";
+import type { Variants } from "motion/react";
+import { motion, useAnimation } from "motion/react";
+import type { HTMLAttributes } from "react";
+import { forwardRef, useCallback, useImperativeHandle, useRef } from "react";
+import { cn } from "@/lib/utils";
+export interface BadgeAlertIconHandle {
+    startAnimation: () => void;
+    stopAnimation: () => void;
+}
+interface BadgeAlertIconProps extends HTMLAttributes<HTMLDivElement> {
+    size?: number;
+}
+const ICON_VARIANTS: Variants = {
+    normal: { scale: 1, rotate: 0 },
+    animate: {
+        scale: [1, 1.1, 1.1, 1.1, 1],
+        rotate: [0, -3, 3, -2, 2, 0],
+        transition: {
+            duration: 0.5,
+            times: [0, 0.2, 0.4, 0.6, 1],
+            ease: "easeInOut",
+        },
+    },
+};
+const BadgeAlertIcon = forwardRef<BadgeAlertIconHandle, BadgeAlertIconProps>(({ onMouseEnter, onMouseLeave, className, size = 28, ...props }, ref) => {
+    const controls = useAnimation();
+    const isControlledRef = useRef(false);
+    useImperativeHandle(ref, () => {
+        isControlledRef.current = true;
+        return {
+            startAnimation: () => controls.start("animate"),
+            stopAnimation: () => controls.start("normal"),
+        };
+    });
+    const handleMouseEnter = useCallback((e: React.MouseEvent<HTMLDivElement>) => {
+        if (isControlledRef.current) {
+            onMouseEnter?.(e);
+        }
+        else {
+            controls.start("animate");
+        }
+    }, [controls, onMouseEnter]);
+    const handleMouseLeave = useCallback((e: React.MouseEvent<HTMLDivElement>) => {
+        if (isControlledRef.current) {
+            onMouseLeave?.(e);
+        }
+        else {
+            controls.start("normal");
+        }
+    }, [controls, onMouseLeave]);
+    return (<div className={cn(className)} onMouseEnter={handleMouseEnter} onMouseLeave={handleMouseLeave} {...props}>
+                <motion.svg animate={controls} fill="none" height={size} stroke="currentColor" strokeLinecap="round" strokeLinejoin="round" strokeWidth="2" variants={ICON_VARIANTS} viewBox="0 0 24 24" width={size} xmlns="http://www.w3.org/2000/svg">
+                    <path d="M3.85 8.62a4 4 0 0 1 4.78-4.77 4 4 0 0 1 6.74 0 4 4 0 0 1 4.78 4.78 4 4 0 0 1 0 6.74 4 4 0 0 1-4.77 4.78 4 4 0 0 1-6.75 0 4 4 0 0 1-4.78-4.77 4 4 0 0 1 0-6.76Z"/>
+                    <line x1="12" x2="12" y1="8" y2="12"/>
+                    <line x1="12" x2="12.01" y1="16" y2="16"/>
+                </motion.svg>
+            </div>);
+});
+BadgeAlertIcon.displayName = "BadgeAlertIcon";
+export { BadgeAlertIcon };

frontend/src/components/ui/badge.tsx

@@ -1,46 +1,24 @@
-import * as React from "react"
-import { Slot } from "@radix-ui/react-slot"
-import { cva, type VariantProps } from "class-variance-authority"
-
-import { cn } from "@/lib/utils"
-
-const badgeVariants = cva(
-  "inline-flex items-center justify-center rounded-full border px-2 py-0.5 text-xs font-medium w-fit whitespace-nowrap shrink-0 [&>svg]:size-3 gap-1 [&>svg]:pointer-events-none focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px] aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive transition-[color,box-shadow] overflow-hidden",
-  {
+import * as React from "react";
+import { Slot } from "@radix-ui/react-slot";
+import { cva, type VariantProps } from "class-variance-authority";
+import { cn } from "@/lib/utils";
+const badgeVariants = cva("inline-flex items-center justify-center rounded-full border px-2 py-0.5 text-xs font-medium w-fit whitespace-nowrap shrink-0 [&>svg]:size-3 gap-1 [&>svg]:pointer-events-none focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px] aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive transition-[color,box-shadow] overflow-hidden", {
     variants: {
-      variant: {
-        default:
-          "border-transparent bg-primary text-primary-foreground [a&]:hover:bg-primary/90",
-        secondary:
-          "border-transparent bg-secondary text-secondary-foreground [a&]:hover:bg-secondary/90",
-        destructive:
-          "border-transparent bg-destructive text-white [a&]:hover:bg-destructive/90 focus-visible:ring-destructive/20 dark:focus-visible:ring-destructive/40 dark:bg-destructive/60",
-        outline:
-          "text-foreground [a&]:hover:bg-accent [a&]:hover:text-accent-foreground",
-      },
+        variant: {
+            default: "border-transparent bg-primary text-primary-foreground [a&]:hover:bg-primary/90",
+            secondary: "border-transparent bg-secondary text-secondary-foreground [a&]:hover:bg-secondary/90",
+            destructive: "border-transparent bg-destructive text-white [a&]:hover:bg-destructive/90 focus-visible:ring-destructive/20 dark:focus-visible:ring-destructive/40 dark:bg-destructive/60",
+            outline: "text-foreground [a&]:hover:bg-accent [a&]:hover:text-accent-foreground",
+        },
     },
     defaultVariants: {
-      variant: "default",
+        variant: "default",
     },
-  }
-)
-
-function Badge({
-  className,
-  variant,
-  asChild = false,
-  ...props
-}: React.ComponentProps<"span"> &
-  VariantProps<typeof badgeVariants> & { asChild?: boolean }) {
-  const Comp = asChild ? Slot : "span"
-
-  return (
-    <Comp
-      data-slot="badge"
-      className={cn(badgeVariants({ variant }), className)}
-      {...props}
-    />
-  )
+});
+function Badge({ className, variant, asChild = false, ...props }: React.ComponentProps<"span"> & VariantProps<typeof badgeVariants> & {
+    asChild?: boolean;
+}) {
+    const Comp = asChild ? Slot : "span";
+    return (<Comp data-slot="badge" className={cn(badgeVariants({ variant }), className)} {...props}/>);
 }
-
-export { Badge, badgeVariants }
+export { Badge, badgeVariants };

frontend/src/components/ui/blocks.tsx

@@ -1,92 +0,0 @@
-'use client';
-
-import type { Variants } from 'motion/react';
-import type { HTMLAttributes } from 'react';
-import { forwardRef, useCallback, useImperativeHandle, useRef } from 'react';
-import { motion, useAnimation } from 'motion/react';
-
-import { cn } from '@/lib/utils';
-
-export interface BlocksIconHandle {
-  startAnimation: () => void;
-  stopAnimation: () => void;
-}
-
-interface BlocksIconProps extends HTMLAttributes<HTMLDivElement> {
-  size?: number;
-}
-
-const VARIANTS: Variants = {
-  normal: { translateX: 0, translateY: 0 },
-  animate: { translateX: -4, translateY: 4 },
-};
-
-const BlocksIcon = forwardRef<BlocksIconHandle, BlocksIconProps>(
-  ({ onMouseEnter, onMouseLeave, className, size = 28, ...props }, ref) => {
-    const controls = useAnimation();
-    const isControlledRef = useRef(false);
-
-    useImperativeHandle(ref, () => {
-      isControlledRef.current = true;
-
-      return {
-        startAnimation: () => controls.start('animate'),
-        stopAnimation: () => controls.start('normal'),
-      };
-    });
-
-    const handleMouseEnter = useCallback(
-      (e: React.MouseEvent<HTMLDivElement>) => {
-        if (!isControlledRef.current) {
-          controls.start('animate');
-        } else {
-          onMouseEnter?.(e);
-        }
-      },
-      [controls, onMouseEnter]
-    );
-
-    const handleMouseLeave = useCallback(
-      (e: React.MouseEvent<HTMLDivElement>) => {
-        if (!isControlledRef.current) {
-          controls.start('normal');
-        } else {
-          onMouseLeave?.(e);
-        }
-      },
-      [controls, onMouseLeave]
-    );
-
-    return (
-      <div
-        className={cn(className)}
-        onMouseEnter={handleMouseEnter}
-        onMouseLeave={handleMouseLeave}
-        {...props}
-      >
-        <svg
-          xmlns="http://www.w3.org/2000/svg"
-          width={size}
-          height={size}
-          viewBox="0 0 24 24"
-          fill="none"
-          stroke="currentColor"
-          strokeWidth="2"
-          strokeLinecap="round"
-          strokeLinejoin="round"
-        >
-          <path d="M10 21V8a1 1 0 0 0-1-1H4a1 1 0 0 0-1 1v12a1 1 0 0 0 1 1h12a1 1 0 0 0 1-1v-5a1 1 0 0 0-1-1H3" />
-          <motion.path
-            d="M14 3h7v7h-7z"
-            variants={VARIANTS}
-            animate={controls}
-          />
-        </svg>
-      </div>
-    );
-  }
-);
-
-BlocksIcon.displayName = 'BlocksIcon';
-
-export { BlocksIcon };

frontend/src/components/ui/button.tsx

@@ -1,60 +1,35 @@
-import * as React from "react"
-import { Slot } from "@radix-ui/react-slot"
-import { cva, type VariantProps } from "class-variance-authority"
-
-import { cn } from "@/lib/utils"
-
-const buttonVariants = cva(
-  "inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-md text-sm font-medium transition-all cursor-pointer disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4 shrink-0 [&_svg]:shrink-0 outline-none focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px] aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive",
-  {
+import * as React from "react";
+import { Slot } from "@radix-ui/react-slot";
+import { cva, type VariantProps } from "class-variance-authority";
+import { cn } from "@/lib/utils";
+const buttonVariants = cva("inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-md text-sm font-medium transition-all cursor-pointer disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4 shrink-0 [&_svg]:shrink-0 outline-none focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px] aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive", {
     variants: {
-      variant: {
-        default: "bg-primary text-primary-foreground hover:bg-primary/90",
-        destructive:
-          "bg-destructive text-white hover:bg-destructive/90 focus-visible:ring-destructive/20 dark:focus-visible:ring-destructive/40 dark:bg-destructive/60",
-        outline:
-          "border bg-background shadow-xs hover:bg-accent hover:text-accent-foreground dark:bg-input/30 dark:border-input dark:hover:bg-input/50",
-        secondary:
-          "bg-secondary text-secondary-foreground hover:bg-secondary/80",
-        ghost:
-          "hover:bg-accent hover:text-accent-foreground dark:hover:bg-accent/50",
-        link: "text-primary underline-offset-4 hover:underline",
-      },
-      size: {
-        default: "h-9 px-4 py-2 has-[>svg]:px-3",
-        sm: "h-8 rounded-md gap-1.5 px-3 has-[>svg]:px-2.5",
-        lg: "h-10 rounded-md px-6 has-[>svg]:px-4",
-        icon: "size-9",
-        "icon-sm": "size-8",
-        "icon-lg": "size-10",
-      },
+        variant: {
+            default: "bg-primary text-primary-foreground hover:bg-primary/90",
+            destructive: "bg-destructive text-white hover:bg-destructive/90 focus-visible:ring-destructive/20 dark:focus-visible:ring-destructive/40 dark:bg-destructive/60",
+            outline: "border bg-background shadow-xs hover:bg-accent hover:text-accent-foreground dark:bg-input/30 dark:border-input dark:hover:bg-input/50",
+            secondary: "bg-secondary text-secondary-foreground hover:bg-secondary/80",
+            ghost: "hover:bg-accent hover:text-accent-foreground dark:hover:bg-accent/50",
+            link: "text-primary underline-offset-4 hover:underline",
+        },
+        size: {
+            default: "h-9 px-4 py-2 has-[>svg]:px-3",
+            sm: "h-8 rounded-md gap-1.5 px-3 has-[>svg]:px-2.5",
+            lg: "h-10 rounded-md px-6 has-[>svg]:px-4",
+            icon: "h-9 w-9 p-0",
+            "icon-sm": "h-8 w-8 p-0",
+            "icon-lg": "h-10 w-10 p-0",
+        },
     },
     defaultVariants: {
-      variant: "default",
-      size: "default",
+        variant: "default",
+        size: "default",
     },
-  }
-)
-
-function Button({
-  className,
-  variant,
-  size,
-  asChild = false,
-  ...props
-}: React.ComponentProps<"button"> &
-  VariantProps<typeof buttonVariants> & {
-    asChild?: boolean
-  }) {
-  const Comp = asChild ? Slot : "button"
-
-  return (
-    <Comp
-      data-slot="button"
-      className={cn(buttonVariants({ variant, size, className }))}
-      {...props}
-    />
-  )
+});
+function Button({ className, variant, size, asChild = false, ...props }: React.ComponentProps<"button"> & VariantProps<typeof buttonVariants> & {
+    asChild?: boolean;
+}) {
+    const Comp = asChild ? Slot : "button";
+    return (<Comp data-slot="button" className={cn(buttonVariants({ variant, size, className }))} {...props}/>);
 }
-
-export { Button, buttonVariants }
+export { Button, buttonVariants };

frontend/src/components/ui/card.tsx

@@ -1,92 +1,24 @@
-import * as React from "react"
-
-import { cn } from "@/lib/utils"
-
+import * as React from "react";
+import { cn } from "@/lib/utils";
 function Card({ className, ...props }: React.ComponentProps<"div">) {
-  return (
-    <div
-      data-slot="card"
-      className={cn(
-        "bg-card text-card-foreground flex flex-col gap-6 rounded-xl border py-6 shadow-sm",
-        className
-      )}
-      {...props}
-    />
-  )
+    return (<div data-slot="card" className={cn("bg-card text-card-foreground flex flex-col gap-6 rounded-xl border py-6 shadow-sm", className)} {...props}/>);
 }
-
 function CardHeader({ className, ...props }: React.ComponentProps<"div">) {
-  return (
-    <div
-      data-slot="card-header"
-      className={cn(
-        "@container/card-header grid auto-rows-min grid-rows-[auto_auto] items-start gap-2 px-6 has-data-[slot=card-action]:grid-cols-[1fr_auto] [.border-b]:pb-6",
-        className
-      )}
-      {...props}
-    />
-  )
+    return (<div data-slot="card-header" className={cn("@container/card-header grid auto-rows-min grid-rows-[auto_auto] items-start gap-2 px-6 has-data-[slot=card-action]:grid-cols-[1fr_auto] [.border-b]:pb-6", className)} {...props}/>);
 }
-
 function CardTitle({ className, ...props }: React.ComponentProps<"div">) {
-  return (
-    <div
-      data-slot="card-title"
-      className={cn("leading-none font-semibold", className)}
-      {...props}
-    />
-  )
+    return (<div data-slot="card-title" className={cn("leading-none font-semibold", className)} {...props}/>);
 }
-
 function CardDescription({ className, ...props }: React.ComponentProps<"div">) {
-  return (
-    <div
-      data-slot="card-description"
-      className={cn("text-muted-foreground text-sm", className)}
-      {...props}
-    />
-  )
+    return (<div data-slot="card-description" className={cn("text-muted-foreground text-sm", className)} {...props}/>);
 }
-
 function CardAction({ className, ...props }: React.ComponentProps<"div">) {
-  return (
-    <div
-      data-slot="card-action"
-      className={cn(
-        "col-start-2 row-span-2 row-start-1 self-start justify-self-end",
-        className
-      )}
-      {...props}
-    />
-  )
+    return (<div data-slot="card-action" className={cn("col-start-2 row-span-2 row-start-1 self-start justify-self-end", className)} {...props}/>);
 }
-
 function CardContent({ className, ...props }: React.ComponentProps<"div">) {
-  return (
-    <div
-      data-slot="card-content"
-      className={cn("px-6", className)}
-      {...props}
-    />
-  )
+    return (<div data-slot="card-content" className={cn("px-6", className)} {...props}/>);
 }
-
 function CardFooter({ className, ...props }: React.ComponentProps<"div">) {
-  return (
-    <div
-      data-slot="card-footer"
-      className={cn("flex items-center px-6 [.border-t]:pt-6", className)}
-      {...props}
-    />
-  )
-}
-
-export {
-  Card,
-  CardHeader,
-  CardFooter,
-  CardTitle,
-  CardAction,
-  CardDescription,
-  CardContent,
+    return (<div data-slot="card-footer" className={cn("flex items-center px-6 [.border-t]:pt-6", className)} {...props}/>);
 }
+export { Card, CardHeader, CardFooter, CardTitle, CardAction, CardDescription, CardContent, };

frontend/src/components/ui/checkbox.tsx

@@ -1,32 +1,13 @@
-"use client"
-
-import * as React from "react"
-import * as CheckboxPrimitive from "@radix-ui/react-checkbox"
-import { CheckIcon } from "lucide-react"
-
-import { cn } from "@/lib/utils"
-
-function Checkbox({
-  className,
-  ...props
-}: React.ComponentProps<typeof CheckboxPrimitive.Root>) {
-  return (
-    <CheckboxPrimitive.Root
-      data-slot="checkbox"
-      className={cn(
-        "peer border-input dark:bg-input/30 data-[state=checked]:bg-primary data-[state=checked]:text-primary-foreground dark:data-[state=checked]:bg-primary data-[state=checked]:border-primary focus-visible:border-ring focus-visible:ring-ring/50 aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive size-4 shrink-0 rounded-[4px] border shadow-xs transition-shadow outline-none focus-visible:ring-[3px] disabled:cursor-not-allowed disabled:opacity-50",
-        className
-      )}
-      {...props}
-    >
-      <CheckboxPrimitive.Indicator
-        data-slot="checkbox-indicator"
-        className="grid place-content-center text-current transition-none"
-      >
-        <CheckIcon className="size-3.5" />
+"use client";
+import * as React from "react";
+import * as CheckboxPrimitive from "@radix-ui/react-checkbox";
+import { CheckIcon } from "lucide-react";
+import { cn } from "@/lib/utils";
+function Checkbox({ className, ...props }: React.ComponentProps<typeof CheckboxPrimitive.Root>) {
+    return (<CheckboxPrimitive.Root data-slot="checkbox" className={cn("peer border-input dark:bg-input/30 data-[state=checked]:bg-primary data-[state=checked]:text-primary-foreground dark:data-[state=checked]:bg-primary data-[state=checked]:border-primary focus-visible:border-ring focus-visible:ring-ring/50 aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive size-4 shrink-0 rounded-[4px] border shadow-xs transition-shadow outline-none focus-visible:ring-[3px] disabled:cursor-not-allowed disabled:opacity-50", className)} {...props}>
+      <CheckboxPrimitive.Indicator data-slot="checkbox-indicator" className="grid place-content-center text-current transition-none">
+        <CheckIcon className="size-3.5"/>
       </CheckboxPrimitive.Indicator>
-    </CheckboxPrimitive.Root>
-  )
+    </CheckboxPrimitive.Root>);
 }
-
-export { Checkbox }
+export { Checkbox };

frontend/src/components/ui/coffee.tsx

@@ -1,118 +1,67 @@
 'use client';
-
 import type { Variants } from 'motion/react';
 import type { HTMLAttributes } from 'react';
 import { forwardRef, useCallback, useImperativeHandle, useRef } from 'react';
 import { motion, useAnimation } from 'motion/react';
-
 import { cn } from '@/lib/utils';
-
 export interface CoffeeIconHandle {
-  startAnimation: () => void;
-  stopAnimation: () => void;
+    startAnimation: () => void;
+    stopAnimation: () => void;
 }
-
 interface CoffeeIconProps extends HTMLAttributes<HTMLDivElement> {
-  size?: number;
+    size?: number;
+    loop?: boolean;
 }
-
 const PATH_VARIANTS: Variants = {
-  normal: {
-    y: 0,
-    opacity: 1,
-  },
-  animate: (custom: number) => ({
-    y: -3,
-    opacity: [0, 1, 0],
-    transition: {
-      repeat: Infinity,
-      duration: 1.5,
-      ease: 'easeInOut',
-      delay: 0.2 * custom,
+    normal: {
+        y: 0,
+        opacity: 1,
     },
-  }),
+    animate: (custom: number) => ({
+        y: -3,
+        opacity: [0, 1, 0],
+        transition: {
+            repeat: Infinity,
+            duration: 1.5,
+            ease: 'easeInOut',
+            delay: 0.2 * custom,
+        },
+    }),
 };
-
-const CoffeeIcon = forwardRef<CoffeeIconHandle, CoffeeIconProps>(
-  ({ onMouseEnter, onMouseLeave, className, size = 28, ...props }, ref) => {
+const CoffeeIcon = forwardRef<CoffeeIconHandle, CoffeeIconProps>(({ onMouseEnter, onMouseLeave, className, size = 28, loop = false, ...props }, ref) => {
     const controls = useAnimation();
     const isControlledRef = useRef(false);
-
     useImperativeHandle(ref, () => {
-      isControlledRef.current = true;
-
-      return {
-        startAnimation: () => controls.start('animate'),
-        stopAnimation: () => controls.start('normal'),
-      };
+        isControlledRef.current = true;
+        return {
+            startAnimation: () => controls.start('animate'),
+            stopAnimation: () => controls.start('normal'),
+        };
     });
-
-    const handleMouseEnter = useCallback(
-      (e: React.MouseEvent<HTMLDivElement>) => {
+    const handleMouseEnter = useCallback((e: React.MouseEvent<HTMLDivElement>) => {
         if (!isControlledRef.current) {
-          controls.start('animate');
-        } else {
-          onMouseEnter?.(e);
+            controls.start('animate');
         }
-      },
-      [controls, onMouseEnter]
-    );
-
-    const handleMouseLeave = useCallback(
-      (e: React.MouseEvent<HTMLDivElement>) => {
+        else {
+            onMouseEnter?.(e);
+        }
+    }, [controls, onMouseEnter]);
+    const handleMouseLeave = useCallback((e: React.MouseEvent<HTMLDivElement>) => {
         if (!isControlledRef.current) {
-          controls.start('normal');
-        } else {
-          onMouseLeave?.(e);
+            controls.start('normal');
         }
-      },
-      [controls, onMouseLeave]
-    );
-
-    return (
-      <div
-        className={cn(className)}
-        onMouseEnter={handleMouseEnter}
-        onMouseLeave={handleMouseLeave}
-        {...props}
-      >
-        <svg
-          xmlns="http://www.w3.org/2000/svg"
-          width={size}
-          height={size}
-          viewBox="0 0 24 24"
-          fill="none"
-          stroke="currentColor"
-          strokeWidth="2"
-          strokeLinecap="round"
-          strokeLinejoin="round"
-          style={{ overflow: 'visible' }}
-        >
-          <motion.path
-            d="M10 2v2"
-            animate={controls}
-            variants={PATH_VARIANTS}
-            custom={0.2}
-          />
-          <motion.path
-            d="M14 2v2"
-            animate={controls}
-            variants={PATH_VARIANTS}
-            custom={0.4}
-          />
-          <motion.path
-            d="M6 2v2"
-            animate={controls}
-            variants={PATH_VARIANTS}
-            custom={0}
-          />
-          <path d="M16 8a1 1 0 0 1 1 1v8a4 4 0 0 1-4 4H7a4 4 0 0 1-4-4V9a1 1 0 0 1 1-1h14a4 4 0 1 1 0 8h-1" />
+        else {
+            onMouseLeave?.(e);
+        }
+    }, [controls, onMouseLeave]);
+    return (<div className={cn(className)} onMouseEnter={handleMouseEnter} onMouseLeave={handleMouseLeave} {...props}>
+        <svg xmlns="http://www.w3.org/2000/svg" width={size} height={size} viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round" style={{ overflow: 'visible' }}>
+            <motion.path d="M10 2v2" animate={loop ? 'animate' : controls} variants={PATH_VARIANTS} custom={0.2}/>
+            <motion.path d="M14 2v2" animate={loop ? 'animate' : controls} variants={PATH_VARIANTS} custom={0.4}/>
+            <motion.path d="M6 2v2" animate={loop ? 'animate' : controls} variants={PATH_VARIANTS} custom={0}/>
+            <path d="M16 8a1 1 0 0 1 1 1v8a4 4 0 0 1-4 4H7a4 4 0 0 1-4-4V9a1 1 0 0 1 1-1h14a4 4 0 1 1 0 8h-1"/>
         </svg>
-      </div>
-    );
-  }
-);
-
+    </div>);
+});
 CoffeeIcon.displayName = 'CoffeeIcon';
-
 export { CoffeeIcon };

frontend/src/components/ui/context-menu.tsx

@@ -1,252 +1,77 @@
-"use client"
-
-import * as React from "react"
-import * as ContextMenuPrimitive from "@radix-ui/react-context-menu"
-import { CheckIcon, ChevronRightIcon, CircleIcon } from "lucide-react"
-
-import { cn } from "@/lib/utils"
-
-function ContextMenu({
-  ...props
-}: React.ComponentProps<typeof ContextMenuPrimitive.Root>) {
-  return <ContextMenuPrimitive.Root data-slot="context-menu" {...props} />
+"use client";
+import * as React from "react";
+import * as ContextMenuPrimitive from "@radix-ui/react-context-menu";
+import { CheckIcon, ChevronRightIcon, CircleIcon } from "lucide-react";
+import { cn } from "@/lib/utils";
+function ContextMenu({ ...props }: React.ComponentProps<typeof ContextMenuPrimitive.Root>) {
+    return <ContextMenuPrimitive.Root data-slot="context-menu" {...props}/>;
 }
-
-function ContextMenuTrigger({
-  ...props
-}: React.ComponentProps<typeof ContextMenuPrimitive.Trigger>) {
-  return (
-    <ContextMenuPrimitive.Trigger data-slot="context-menu-trigger" {...props} />
-  )
+function ContextMenuTrigger({ ...props }: React.ComponentProps<typeof ContextMenuPrimitive.Trigger>) {
+    return (<ContextMenuPrimitive.Trigger data-slot="context-menu-trigger" {...props}/>);
 }
-
-function ContextMenuGroup({
-  ...props
-}: React.ComponentProps<typeof ContextMenuPrimitive.Group>) {
-  return (
-    <ContextMenuPrimitive.Group data-slot="context-menu-group" {...props} />
-  )
+function ContextMenuGroup({ ...props }: React.ComponentProps<typeof ContextMenuPrimitive.Group>) {
+    return (<ContextMenuPrimitive.Group data-slot="context-menu-group" {...props}/>);
 }
-
-function ContextMenuPortal({
-  ...props
-}: React.ComponentProps<typeof ContextMenuPrimitive.Portal>) {
-  return (
-    <ContextMenuPrimitive.Portal data-slot="context-menu-portal" {...props} />
-  )
+function ContextMenuPortal({ ...props }: React.ComponentProps<typeof ContextMenuPrimitive.Portal>) {
+    return (<ContextMenuPrimitive.Portal data-slot="context-menu-portal" {...props}/>);
 }
-
-function ContextMenuSub({
-  ...props
-}: React.ComponentProps<typeof ContextMenuPrimitive.Sub>) {
-  return <ContextMenuPrimitive.Sub data-slot="context-menu-sub" {...props} />
+function ContextMenuSub({ ...props }: React.ComponentProps<typeof ContextMenuPrimitive.Sub>) {
+    return <ContextMenuPrimitive.Sub data-slot="context-menu-sub" {...props}/>;
 }
-
-function ContextMenuRadioGroup({
-  ...props
-}: React.ComponentProps<typeof ContextMenuPrimitive.RadioGroup>) {
-  return (
-    <ContextMenuPrimitive.RadioGroup
-      data-slot="context-menu-radio-group"
-      {...props}
-    />
-  )
+function ContextMenuRadioGroup({ ...props }: React.ComponentProps<typeof ContextMenuPrimitive.RadioGroup>) {
+    return (<ContextMenuPrimitive.RadioGroup data-slot="context-menu-radio-group" {...props}/>);
 }
-
-function ContextMenuSubTrigger({
-  className,
-  inset,
-  children,
-  ...props
-}: React.ComponentProps<typeof ContextMenuPrimitive.SubTrigger> & {
-  inset?: boolean
+function ContextMenuSubTrigger({ className, inset, children, ...props }: React.ComponentProps<typeof ContextMenuPrimitive.SubTrigger> & {
+    inset?: boolean;
 }) {
-  return (
-    <ContextMenuPrimitive.SubTrigger
-      data-slot="context-menu-sub-trigger"
-      data-inset={inset}
-      className={cn(
-        "focus:bg-accent focus:text-accent-foreground data-[state=open]:bg-accent data-[state=open]:text-accent-foreground [&_svg:not([class*='text-'])]:text-muted-foreground flex cursor-default items-center rounded-sm px-2 py-1.5 text-sm outline-hidden select-none data-inset:pl-8 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
-        className
-      )}
-      {...props}
-    >
+    return (<ContextMenuPrimitive.SubTrigger data-slot="context-menu-sub-trigger" data-inset={inset} className={cn("focus:bg-accent focus:text-accent-foreground data-[state=open]:bg-accent data-[state=open]:text-accent-foreground [&_svg:not([class*='text-'])]:text-muted-foreground flex cursor-default items-center rounded-sm px-2 py-1.5 text-sm outline-hidden select-none data-inset:pl-8 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4", className)} {...props}>
       {children}
-      <ChevronRightIcon className="ml-auto" />
-    </ContextMenuPrimitive.SubTrigger>
-  )
+      <ChevronRightIcon className="ml-auto"/>
+    </ContextMenuPrimitive.SubTrigger>);
 }
-
-function ContextMenuSubContent({
-  className,
-  ...props
-}: React.ComponentProps<typeof ContextMenuPrimitive.SubContent>) {
-  return (
-    <ContextMenuPrimitive.SubContent
-      data-slot="context-menu-sub-content"
-      className={cn(
-        "bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 z-50 min-w-32 origin-(--radix-context-menu-content-transform-origin) overflow-hidden rounded-md border p-1 shadow-lg",
-        className
-      )}
-      {...props}
-    />
-  )
+function ContextMenuSubContent({ className, ...props }: React.ComponentProps<typeof ContextMenuPrimitive.SubContent>) {
+    return (<ContextMenuPrimitive.SubContent data-slot="context-menu-sub-content" className={cn("bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 z-50 min-w-32 origin-(--radix-context-menu-content-transform-origin) overflow-hidden rounded-md border p-1 shadow-lg", className)} {...props}/>);
 }
-
-function ContextMenuContent({
-  className,
-  ...props
-}: React.ComponentProps<typeof ContextMenuPrimitive.Content>) {
-  return (
-    <ContextMenuPrimitive.Portal>
-      <ContextMenuPrimitive.Content
-        data-slot="context-menu-content"
-        className={cn(
-          "bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 z-50 max-h-(--radix-context-menu-content-available-height) min-w-32 origin-(--radix-context-menu-content-transform-origin) overflow-x-hidden overflow-y-auto rounded-md border p-1 shadow-md",
-          className
-        )}
-        {...props}
-      />
-    </ContextMenuPrimitive.Portal>
-  )
+function ContextMenuContent({ className, ...props }: React.ComponentProps<typeof ContextMenuPrimitive.Content>) {
+    return (<ContextMenuPrimitive.Portal>
+      <ContextMenuPrimitive.Content data-slot="context-menu-content" className={cn("bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 z-50 max-h-(--radix-context-menu-content-available-height) min-w-32 origin-(--radix-context-menu-content-transform-origin) overflow-x-hidden overflow-y-auto rounded-md border p-1 shadow-md", className)} {...props}/>
+    </ContextMenuPrimitive.Portal>);
 }
-
-function ContextMenuItem({
-  className,
-  inset,
-  variant = "default",
-  ...props
-}: React.ComponentProps<typeof ContextMenuPrimitive.Item> & {
-  inset?: boolean
-  variant?: "default" | "destructive"
+function ContextMenuItem({ className, inset, variant = "default", ...props }: React.ComponentProps<typeof ContextMenuPrimitive.Item> & {
+    inset?: boolean;
+    variant?: "default" | "destructive";
 }) {
-  return (
-    <ContextMenuPrimitive.Item
-      data-slot="context-menu-item"
-      data-inset={inset}
-      data-variant={variant}
-      className={cn(
-        "focus:bg-accent focus:text-accent-foreground data-[variant=destructive]:text-destructive data-[variant=destructive]:focus:bg-destructive/10 dark:data-[variant=destructive]:focus:bg-destructive/20 data-[variant=destructive]:focus:text-destructive data-[variant=destructive]:*:[svg]:text-destructive! [&_svg:not([class*='text-'])]:text-muted-foreground relative flex cursor-default items-center gap-2 rounded-sm px-2 py-1.5 text-sm outline-hidden select-none data-disabled:pointer-events-none data-disabled:opacity-50 data-inset:pl-8 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
-        className
-      )}
-      {...props}
-    />
-  )
+    return (<ContextMenuPrimitive.Item data-slot="context-menu-item" data-inset={inset} data-variant={variant} className={cn("focus:bg-accent focus:text-accent-foreground data-[variant=destructive]:text-destructive data-[variant=destructive]:focus:bg-destructive/10 dark:data-[variant=destructive]:focus:bg-destructive/20 data-[variant=destructive]:focus:text-destructive data-[variant=destructive]:*:[svg]:text-destructive! [&_svg:not([class*='text-'])]:text-muted-foreground relative flex cursor-default items-center gap-2 rounded-sm px-2 py-1.5 text-sm outline-hidden select-none data-disabled:pointer-events-none data-disabled:opacity-50 data-inset:pl-8 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4", className)} {...props}/>);
 }
-
-function ContextMenuCheckboxItem({
-  className,
-  children,
-  checked,
-  ...props
-}: React.ComponentProps<typeof ContextMenuPrimitive.CheckboxItem>) {
-  return (
-    <ContextMenuPrimitive.CheckboxItem
-      data-slot="context-menu-checkbox-item"
-      className={cn(
-        "focus:bg-accent focus:text-accent-foreground relative flex cursor-default items-center gap-2 rounded-sm py-1.5 pr-2 pl-8 text-sm outline-hidden select-none data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
-        className
-      )}
-      checked={checked}
-      {...props}
-    >
+function ContextMenuCheckboxItem({ className, children, checked, ...props }: React.ComponentProps<typeof ContextMenuPrimitive.CheckboxItem>) {
+    return (<ContextMenuPrimitive.CheckboxItem data-slot="context-menu-checkbox-item" className={cn("focus:bg-accent focus:text-accent-foreground relative flex cursor-default items-center gap-2 rounded-sm py-1.5 pr-2 pl-8 text-sm outline-hidden select-none data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4", className)} checked={checked} {...props}>
       <span className="pointer-events-none absolute left-2 flex size-3.5 items-center justify-center">
         <ContextMenuPrimitive.ItemIndicator>
-          <CheckIcon className="size-4" />
+          <CheckIcon className="size-4"/>
         </ContextMenuPrimitive.ItemIndicator>
       </span>
       {children}
-    </ContextMenuPrimitive.CheckboxItem>
-  )
+    </ContextMenuPrimitive.CheckboxItem>);
 }
-
-function ContextMenuRadioItem({
-  className,
-  children,
-  ...props
-}: React.ComponentProps<typeof ContextMenuPrimitive.RadioItem>) {
-  return (
-    <ContextMenuPrimitive.RadioItem
-      data-slot="context-menu-radio-item"
-      className={cn(
-        "focus:bg-accent focus:text-accent-foreground relative flex cursor-default items-center gap-2 rounded-sm py-1.5 pr-2 pl-8 text-sm outline-hidden select-none data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
-        className
-      )}
-      {...props}
-    >
+function ContextMenuRadioItem({ className, children, ...props }: React.ComponentProps<typeof ContextMenuPrimitive.RadioItem>) {
+    return (<ContextMenuPrimitive.RadioItem data-slot="context-menu-radio-item" className={cn("focus:bg-accent focus:text-accent-foreground relative flex cursor-default items-center gap-2 rounded-sm py-1.5 pr-2 pl-8 text-sm outline-hidden select-none data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4", className)} {...props}>
       <span className="pointer-events-none absolute left-2 flex size-3.5 items-center justify-center">
         <ContextMenuPrimitive.ItemIndicator>
-          <CircleIcon className="size-2 fill-current" />
+          <CircleIcon className="size-2 fill-current"/>
         </ContextMenuPrimitive.ItemIndicator>
       </span>
       {children}
-    </ContextMenuPrimitive.RadioItem>
-  )
+    </ContextMenuPrimitive.RadioItem>);
 }
-
-function ContextMenuLabel({
-  className,
-  inset,
-  ...props
-}: React.ComponentProps<typeof ContextMenuPrimitive.Label> & {
-  inset?: boolean
+function ContextMenuLabel({ className, inset, ...props }: React.ComponentProps<typeof ContextMenuPrimitive.Label> & {
+    inset?: boolean;
 }) {
-  return (
-    <ContextMenuPrimitive.Label
-      data-slot="context-menu-label"
-      data-inset={inset}
-      className={cn(
-        "text-foreground px-2 py-1.5 text-sm font-medium data-inset:pl-8",
-        className
-      )}
-      {...props}
-    />
-  )
+    return (<ContextMenuPrimitive.Label data-slot="context-menu-label" data-inset={inset} className={cn("text-foreground px-2 py-1.5 text-sm font-medium data-inset:pl-8", className)} {...props}/>);
 }
-
-function ContextMenuSeparator({
-  className,
-  ...props
-}: React.ComponentProps<typeof ContextMenuPrimitive.Separator>) {
-  return (
-    <ContextMenuPrimitive.Separator
-      data-slot="context-menu-separator"
-      className={cn("bg-border -mx-1 my-1 h-px", className)}
-      {...props}
-    />
-  )
+function ContextMenuSeparator({ className, ...props }: React.ComponentProps<typeof ContextMenuPrimitive.Separator>) {
+    return (<ContextMenuPrimitive.Separator data-slot="context-menu-separator" className={cn("bg-border -mx-1 my-1 h-px", className)} {...props}/>);
 }
-
-function ContextMenuShortcut({
-  className,
-  ...props
-}: React.ComponentProps<"span">) {
-  return (
-    <span
-      data-slot="context-menu-shortcut"
-      className={cn(
-        "text-muted-foreground ml-auto text-xs tracking-widest",
-        className
-      )}
-      {...props}
-    />
-  )
-}
-
-export {
-  ContextMenu,
-  ContextMenuTrigger,
-  ContextMenuContent,
-  ContextMenuItem,
-  ContextMenuCheckboxItem,
-  ContextMenuRadioItem,
-  ContextMenuLabel,
-  ContextMenuSeparator,
-  ContextMenuShortcut,
-  ContextMenuGroup,
-  ContextMenuPortal,
-  ContextMenuSub,
-  ContextMenuSubContent,
-  ContextMenuSubTrigger,
-  ContextMenuRadioGroup,
+function ContextMenuShortcut({ className, ...props }: React.ComponentProps<"span">) {
+    return (<span data-slot="context-menu-shortcut" className={cn("text-muted-foreground ml-auto text-xs tracking-widest", className)} {...props}/>);
 }
+export { ContextMenu, ContextMenuTrigger, ContextMenuContent, ContextMenuItem, ContextMenuCheckboxItem, ContextMenuRadioItem, ContextMenuLabel, ContextMenuSeparator, ContextMenuShortcut, ContextMenuGroup, ContextMenuPortal, ContextMenuSub, ContextMenuSubContent, ContextMenuSubTrigger, ContextMenuRadioGroup, };

frontend/src/components/ui/dialog.tsx

@@ -1,143 +1,47 @@
-"use client"
-
-import * as React from "react"
-import * as DialogPrimitive from "@radix-ui/react-dialog"
-import { XIcon } from "lucide-react"
-
-import { cn } from "@/lib/utils"
-
-function Dialog({
-  ...props
-}: React.ComponentProps<typeof DialogPrimitive.Root>) {
-  return <DialogPrimitive.Root data-slot="dialog" {...props} />
+"use client";
+import * as React from "react";
+import * as DialogPrimitive from "@radix-ui/react-dialog";
+import { XIcon } from "lucide-react";
+import { cn } from "@/lib/utils";
+function Dialog({ ...props }: React.ComponentProps<typeof DialogPrimitive.Root>) {
+    return <DialogPrimitive.Root data-slot="dialog" {...props}/>;
 }
-
-function DialogTrigger({
-  ...props
-}: React.ComponentProps<typeof DialogPrimitive.Trigger>) {
-  return <DialogPrimitive.Trigger data-slot="dialog-trigger" {...props} />
+function DialogTrigger({ ...props }: React.ComponentProps<typeof DialogPrimitive.Trigger>) {
+    return <DialogPrimitive.Trigger data-slot="dialog-trigger" {...props}/>;
 }
-
-function DialogPortal({
-  ...props
-}: React.ComponentProps<typeof DialogPrimitive.Portal>) {
-  return <DialogPrimitive.Portal data-slot="dialog-portal" {...props} />
+function DialogPortal({ ...props }: React.ComponentProps<typeof DialogPrimitive.Portal>) {
+    return <DialogPrimitive.Portal data-slot="dialog-portal" {...props}/>;
 }
-
-function DialogClose({
-  ...props
-}: React.ComponentProps<typeof DialogPrimitive.Close>) {
-  return <DialogPrimitive.Close data-slot="dialog-close" {...props} />
+function DialogClose({ ...props }: React.ComponentProps<typeof DialogPrimitive.Close>) {
+    return <DialogPrimitive.Close data-slot="dialog-close" {...props}/>;
 }
-
-function DialogOverlay({
-  className,
-  ...props
-}: React.ComponentProps<typeof DialogPrimitive.Overlay>) {
-  return (
-    <DialogPrimitive.Overlay
-      data-slot="dialog-overlay"
-      className={cn(
-        "data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 fixed inset-0 z-50 bg-black/50",
-        className
-      )}
-      {...props}
-    />
-  )
+function DialogOverlay({ className, ...props }: React.ComponentProps<typeof DialogPrimitive.Overlay>) {
+    return (<DialogPrimitive.Overlay data-slot="dialog-overlay" className={cn("data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 fixed inset-0 z-50 bg-black/50", className)} {...props}/>);
 }
-
-function DialogContent({
-  className,
-  children,
-  showCloseButton = true,
-  ...props
-}: React.ComponentProps<typeof DialogPrimitive.Content> & {
-  showCloseButton?: boolean
+function DialogContent({ className, children, showCloseButton = true, ...props }: React.ComponentProps<typeof DialogPrimitive.Content> & {
+    showCloseButton?: boolean;
 }) {
-  return (
-    <DialogPortal data-slot="dialog-portal">
+    return (<DialogPortal data-slot="dialog-portal">
       <DialogOverlay />
-      <DialogPrimitive.Content
-        data-slot="dialog-content"
-        className={cn(
-          "bg-background data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 fixed top-[50%] left-[50%] z-50 grid w-full max-w-[calc(100%-2rem)] translate-x-[-50%] translate-y-[-50%] gap-4 rounded-lg border p-6 shadow-lg duration-200",
-          className
-        )}
-        {...props}
-      >
+      <DialogPrimitive.Content data-slot="dialog-content" className={cn("bg-background data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 fixed top-[50%] left-[50%] z-50 grid w-full max-w-[calc(100%-2rem)] translate-x-[-50%] translate-y-[-50%] gap-4 rounded-lg border p-6 shadow-lg duration-200", className)} {...props}>
         {children}
-        {showCloseButton && (
-          <DialogPrimitive.Close
-            data-slot="dialog-close"
-            className="ring-offset-background focus:ring-ring data-[state=open]:bg-accent data-[state=open]:text-muted-foreground absolute top-4 right-4 rounded-xs opacity-70 transition-opacity hover:opacity-100 focus:ring-2 focus:ring-offset-2 focus:outline-hidden disabled:pointer-events-none [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4"
-          >
+        {showCloseButton && (<DialogPrimitive.Close data-slot="dialog-close" className="ring-offset-background focus:ring-ring data-[state=open]:bg-accent data-[state=open]:text-muted-foreground absolute top-4 right-4 rounded-xs opacity-70 transition-opacity hover:opacity-100 focus:ring-2 focus:ring-offset-2 focus:outline-hidden disabled:pointer-events-none [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4">
             <XIcon />
             <span className="sr-only">Close</span>
-          </DialogPrimitive.Close>
-        )}
+          </DialogPrimitive.Close>)}
       </DialogPrimitive.Content>
-    </DialogPortal>
-  )
+    </DialogPortal>);
 }
-
 function DialogHeader({ className, ...props }: React.ComponentProps<"div">) {
-  return (
-    <div
-      data-slot="dialog-header"
-      className={cn("flex flex-col gap-2 text-center sm:text-left", className)}
-      {...props}
-    />
-  )
+    return (<div data-slot="dialog-header" className={cn("flex flex-col gap-2 text-center sm:text-left", className)} {...props}/>);
 }
-
 function DialogFooter({ className, ...props }: React.ComponentProps<"div">) {
-  return (
-    <div
-      data-slot="dialog-footer"
-      className={cn(
-        "flex flex-col-reverse gap-2 sm:flex-row sm:justify-end",
-        className
-      )}
-      {...props}
-    />
-  )
+    return (<div data-slot="dialog-footer" className={cn("flex flex-col-reverse gap-2 sm:flex-row sm:justify-end", className)} {...props}/>);
 }
-
-function DialogTitle({
-  className,
-  ...props
-}: React.ComponentProps<typeof DialogPrimitive.Title>) {
-  return (
-    <DialogPrimitive.Title
-      data-slot="dialog-title"
-      className={cn("text-lg leading-none font-semibold", className)}
-      {...props}
-    />
-  )
+function DialogTitle({ className, ...props }: React.ComponentProps<typeof DialogPrimitive.Title>) {
+    return (<DialogPrimitive.Title data-slot="dialog-title" className={cn("text-lg leading-none font-semibold", className)} {...props}/>);
 }
-
-function DialogDescription({
-  className,
-  ...props
-}: React.ComponentProps<typeof DialogPrimitive.Description>) {
-  return (
-    <DialogPrimitive.Description
-      data-slot="dialog-description"
-      className={cn("text-muted-foreground text-sm", className)}
-      {...props}
-    />
-  )
-}
-
-export {
-  Dialog,
-  DialogClose,
-  DialogContent,
-  DialogDescription,
-  DialogFooter,
-  DialogHeader,
-  DialogOverlay,
-  DialogPortal,
-  DialogTitle,
-  DialogTrigger,
+function DialogDescription({ className, ...props }: React.ComponentProps<typeof DialogPrimitive.Description>) {
+    return (<DialogPrimitive.Description data-slot="dialog-description" className={cn("text-muted-foreground text-sm", className)} {...props}/>);
 }
+export { Dialog, DialogClose, DialogContent, DialogDescription, DialogFooter, DialogHeader, DialogOverlay, DialogPortal, DialogTitle, DialogTrigger, };

frontend/src/components/ui/file-music.tsx

@@ -0,0 +1,64 @@
+'use client';
+import type { Variants } from 'motion/react';
+import type { HTMLAttributes } from 'react';
+import { forwardRef, useCallback, useImperativeHandle, useRef } from 'react';
+import { motion, useAnimation } from 'motion/react';
+import { cn } from '@/lib/utils';
+export interface FileMusicIconHandle {
+    startAnimation: () => void;
+    stopAnimation: () => void;
+}
+interface FileMusicIconProps extends HTMLAttributes<HTMLDivElement> {
+    size?: number;
+}
+const PATH_VARIANTS: Variants = {
+    normal: {
+        pathLength: 1,
+        opacity: 1,
+    },
+    animate: {
+        pathLength: [0, 1],
+        opacity: [0, 1],
+        transition: {
+            duration: 0.6,
+            ease: 'easeInOut',
+        },
+    },
+};
+const FileMusicIcon = forwardRef<FileMusicIconHandle, FileMusicIconProps>(({ onMouseEnter, onMouseLeave, className, size = 28, ...props }, ref) => {
+    const controls = useAnimation();
+    const isControlledRef = useRef(false);
+    useImperativeHandle(ref, () => {
+        isControlledRef.current = true;
+        return {
+            startAnimation: () => controls.start('animate'),
+            stopAnimation: () => controls.start('normal'),
+        };
+    });
+    const handleMouseEnter = useCallback((e: React.MouseEvent<HTMLDivElement>) => {
+        if (!isControlledRef.current) {
+            controls.start('animate');
+        }
+        else {
+            onMouseEnter?.(e);
+        }
+    }, [controls, onMouseEnter]);
+    const handleMouseLeave = useCallback((e: React.MouseEvent<HTMLDivElement>) => {
+        if (!isControlledRef.current) {
+            controls.start('normal');
+        }
+        else {
+            onMouseLeave?.(e);
+        }
+    }, [controls, onMouseLeave]);
+    return (<div className={cn(className)} onMouseEnter={handleMouseEnter} onMouseLeave={handleMouseLeave} {...props}>
+                <svg xmlns="http://www.w3.org/2000/svg" width={size} height={size} viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                    <motion.path d="M11.65 22H18a2 2 0 0 0 2-2V8a2.4 2.4 0 0 0-.706-1.706l-3.588-3.588A2.4 2.4 0 0 0 14 2H6a2 2 0 0 0-2 2v10.35" variants={PATH_VARIANTS} animate={controls} initial="normal"/>
+                    <motion.path d="M14 2v5a1 1 0 0 0 1 1h5" variants={PATH_VARIANTS} animate={controls} initial="normal"/>
+                    <motion.path d="M8 20v-7l3 1.474" variants={PATH_VARIANTS} animate={controls} initial="normal"/>
+                    <motion.circle cx="6" cy="20" r="2" variants={PATH_VARIANTS} animate={controls} initial="normal"/>
+                </svg>
+            </div>);
+});
+FileMusicIcon.displayName = 'FileMusicIcon';
+export { FileMusicIcon };

frontend/src/components/ui/file-pen.tsx

@@ -0,0 +1,63 @@
+'use client';
+import type { Variants } from 'motion/react';
+import type { HTMLAttributes } from 'react';
+import { forwardRef, useCallback, useImperativeHandle, useRef } from 'react';
+import { motion, useAnimation } from 'motion/react';
+import { cn } from '@/lib/utils';
+export interface FilePenIconHandle {
+    startAnimation: () => void;
+    stopAnimation: () => void;
+}
+interface FilePenIconProps extends HTMLAttributes<HTMLDivElement> {
+    size?: number;
+}
+const PATH_VARIANTS: Variants = {
+    normal: {
+        pathLength: 1,
+        opacity: 1,
+    },
+    animate: {
+        pathLength: [0, 1],
+        opacity: [0, 1],
+        transition: {
+            duration: 0.6,
+            ease: 'easeInOut',
+        },
+    },
+};
+const FilePenIcon = forwardRef<FilePenIconHandle, FilePenIconProps>(({ onMouseEnter, onMouseLeave, className, size = 28, ...props }, ref) => {
+    const controls = useAnimation();
+    const isControlledRef = useRef(false);
+    useImperativeHandle(ref, () => {
+        isControlledRef.current = true;
+        return {
+            startAnimation: () => controls.start('animate'),
+            stopAnimation: () => controls.start('normal'),
+        };
+    });
+    const handleMouseEnter = useCallback((e: React.MouseEvent<HTMLDivElement>) => {
+        if (!isControlledRef.current) {
+            controls.start('animate');
+        }
+        else {
+            onMouseEnter?.(e);
+        }
+    }, [controls, onMouseEnter]);
+    const handleMouseLeave = useCallback((e: React.MouseEvent<HTMLDivElement>) => {
+        if (!isControlledRef.current) {
+            controls.start('normal');
+        }
+        else {
+            onMouseLeave?.(e);
+        }
+    }, [controls, onMouseLeave]);
+    return (<div className={cn(className)} onMouseEnter={handleMouseEnter} onMouseLeave={handleMouseLeave} {...props}>
+                <svg xmlns="http://www.w3.org/2000/svg" width={size} height={size} viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                    <motion.path d="M12.659 22H18a2 2 0 0 0 2-2V8a2.4 2.4 0 0 0-.706-1.706l-3.588-3.588A2.4 2.4 0 0 0 14 2H6a2 2 0 0 0-2 2v9.34" variants={PATH_VARIANTS} animate={controls} initial="normal"/>
+                    <motion.path d="M14 2v5a1 1 0 0 0 1 1h5" variants={PATH_VARIANTS} animate={controls} initial="normal"/>
+                    <motion.path d="M10.378 12.622a1 1 0 0 1 3 3.003L8.36 20.637a2 2 0 0 1-.854.506l-2.867.837a.5.5 0 0 1-.62-.62l.836-2.869a2 2 0 0 1 .506-.853z" variants={PATH_VARIANTS} animate={controls} initial="normal"/>
+                </svg>
+            </div>);
+});
+FilePenIcon.displayName = 'FilePenIcon';
+export { FilePenIcon };

frontend/src/components/ui/github.tsx

@@ -1,149 +0,0 @@
-'use client';
-
-import type { Variants } from 'motion/react';
-import type { HTMLAttributes } from 'react';
-import { forwardRef, useCallback, useImperativeHandle, useRef } from 'react';
-import { motion, useAnimation } from 'motion/react';
-
-import { cn } from '@/lib/utils';
-
-export interface GithubIconHandle {
-  startAnimation: () => void;
-  stopAnimation: () => void;
-}
-
-interface GithubIconProps extends HTMLAttributes<HTMLDivElement> {
-  size?: number;
-}
-
-const BODY_VARIANTS: Variants = {
-  normal: {
-    opacity: 1,
-    pathLength: 1,
-    scale: 1,
-    transition: {
-      duration: 0.3,
-    },
-  },
-  animate: {
-    opacity: [0, 1],
-    pathLength: [0, 1],
-    scale: [0.9, 1],
-    transition: {
-      duration: 0.4,
-    },
-  },
-};
-
-const TAIL_VARIANTS: Variants = {
-  normal: {
-    pathLength: 1,
-    rotate: 0,
-    transition: {
-      duration: 0.3,
-    },
-  },
-  draw: {
-    pathLength: [0, 1],
-    rotate: 0,
-    transition: {
-      duration: 0.5,
-    },
-  },
-  wag: {
-    pathLength: 1,
-    rotate: [0, -15, 15, -10, 10, -5, 5],
-    transition: {
-      duration: 2.5,
-      ease: 'easeInOut',
-      repeat: Infinity,
-    },
-  },
-};
-
-const GithubIcon = forwardRef<GithubIconHandle, GithubIconProps>(
-  ({ onMouseEnter, onMouseLeave, className, size = 28, ...props }, ref) => {
-    const bodyControls = useAnimation();
-    const tailControls = useAnimation();
-    const isControlledRef = useRef(false);
-
-    useImperativeHandle(ref, () => {
-      isControlledRef.current = true;
-
-      return {
-        startAnimation: async () => {
-          bodyControls.start('animate');
-          await tailControls.start('draw');
-          tailControls.start('wag');
-        },
-        stopAnimation: () => {
-          bodyControls.start('normal');
-          tailControls.start('normal');
-        },
-      };
-    });
-
-    const handleMouseEnter = useCallback(
-      async (e: React.MouseEvent<HTMLDivElement>) => {
-        if (!isControlledRef.current) {
-          bodyControls.start('animate');
-          await tailControls.start('draw');
-          tailControls.start('wag');
-        } else {
-          onMouseEnter?.(e);
-        }
-      },
-      [bodyControls, onMouseEnter, tailControls]
-    );
-
-    const handleMouseLeave = useCallback(
-      (e: React.MouseEvent<HTMLDivElement>) => {
-        if (!isControlledRef.current) {
-          bodyControls.start('normal');
-          tailControls.start('normal');
-        } else {
-          onMouseLeave?.(e);
-        }
-      },
-      [bodyControls, tailControls, onMouseLeave]
-    );
-
-    return (
-      <div
-        className={cn(className)}
-        onMouseEnter={handleMouseEnter}
-        onMouseLeave={handleMouseLeave}
-        {...props}
-      >
-        <svg
-          xmlns="http://www.w3.org/2000/svg"
-          width={size}
-          height={size}
-          viewBox="0 0 24 24"
-          fill="none"
-          stroke="currentColor"
-          strokeWidth="2"
-          strokeLinecap="round"
-          strokeLinejoin="round"
-        >
-          <motion.path
-            variants={BODY_VARIANTS}
-            initial="normal"
-            animate={bodyControls}
-            d="M15 22v-4a4.8 4.8 0 0 0-1-3.5c3 0 6-2 6-5.5.08-1.25-.27-2.48-1-3.5.28-1.15.28-2.35 0-3.5 0 0-1 0-3 1.5-2.64-.5-5.36-.5-8 0C6 2 5 2 5 2c-.3 1.15-.3 2.35 0 3.5A5.403 5.403 0 0 0 4 9c0 3.5 3 5.5 6 5.5-.39.49-.68 1.05-.85 1.65-.17.6-.22 1.23-.15 1.85v4"
-          />
-          <motion.path
-            variants={TAIL_VARIANTS}
-            initial="normal"
-            animate={tailControls}
-            d="M9 18c-4.51 2-5-2-7-2"
-          />
-        </svg>
-      </div>
-    );
-  }
-);
-
-GithubIcon.displayName = 'GithubIcon';
-
-export { GithubIcon };

frontend/src/components/ui/history-icon.tsx

@@ -0,0 +1,97 @@
+"use client";
+import type { Transition, Variants } from "motion/react";
+import { motion, useAnimation } from "motion/react";
+import type { HTMLAttributes } from "react";
+import { forwardRef, useCallback, useImperativeHandle, useRef } from "react";
+import { cn } from "@/lib/utils";
+export interface HistoryIconHandle {
+    startAnimation: () => void;
+    stopAnimation: () => void;
+}
+interface HistoryIconProps extends HTMLAttributes<HTMLDivElement> {
+    size?: number;
+}
+const ARROW_TRANSITION: Transition = {
+    type: "spring",
+    stiffness: 250,
+    damping: 25,
+};
+const ARROW_VARIANTS: Variants = {
+    normal: {
+        rotate: "0deg",
+    },
+    animate: {
+        rotate: "-50deg",
+    },
+};
+const HAND_TRANSITION: Transition = {
+    duration: 0.6,
+    ease: [0.4, 0, 0.2, 1],
+};
+const HAND_VARIANTS: Variants = {
+    normal: {
+        rotate: 0,
+        originX: "0%",
+        originY: "100%",
+    },
+    animate: {
+        rotate: -360,
+        originX: "0%",
+        originY: "100%",
+    },
+};
+const MINUTE_HAND_TRANSITION: Transition = {
+    duration: 0.5,
+    ease: "easeInOut",
+};
+const MINUTE_HAND_VARIANTS: Variants = {
+    normal: {
+        rotate: 0,
+        originX: "0%",
+        originY: "0%",
+    },
+    animate: {
+        rotate: -45,
+        originX: "0%",
+        originY: "0%",
+    },
+};
+const HistoryIcon = forwardRef<HistoryIconHandle, HistoryIconProps>(({ onMouseEnter, onMouseLeave, className, size = 28, ...props }, ref) => {
+    const controls = useAnimation();
+    const isControlledRef = useRef(false);
+    useImperativeHandle(ref, () => {
+        isControlledRef.current = true;
+        return {
+            startAnimation: () => controls.start("animate"),
+            stopAnimation: () => controls.start("normal"),
+        };
+    });
+    const handleMouseEnter = useCallback((e: React.MouseEvent<HTMLDivElement>) => {
+        if (isControlledRef.current) {
+            onMouseEnter?.(e);
+        }
+        else {
+            controls.start("animate");
+        }
+    }, [controls, onMouseEnter]);
+    const handleMouseLeave = useCallback((e: React.MouseEvent<HTMLDivElement>) => {
+        if (isControlledRef.current) {
+            onMouseLeave?.(e);
+        }
+        else {
+            controls.start("normal");
+        }
+    }, [controls, onMouseLeave]);
+    return (<div className={cn(className)} onMouseEnter={handleMouseEnter} onMouseLeave={handleMouseLeave} {...props}>
+                <svg fill="none" height={size} stroke="currentColor" strokeLinecap="round" strokeLinejoin="round" strokeWidth="2" viewBox="0 0 24 24" width={size} xmlns="http://www.w3.org/2000/svg">
+                    <motion.g animate={controls} transition={ARROW_TRANSITION} variants={ARROW_VARIANTS}>
+                        <path d="M3 12a9 9 0 1 0 9-9 9.75 9.75 0 0 0-6.74 2.74L3 8"/>
+                        <path d="M3 3v5h5"/>
+                    </motion.g>
+                    <motion.line animate={controls} initial="normal" transition={HAND_TRANSITION} variants={HAND_VARIANTS} x1="12" x2="12" y1="12" y2="7"/>
+                    <motion.line animate={controls} initial="normal" transition={MINUTE_HAND_TRANSITION} variants={MINUTE_HAND_VARIANTS} x1="12" x2="16" y1="12" y2="14"/>
+                </svg>
+            </div>);
+});
+HistoryIcon.displayName = "HistoryIcon";
+export { HistoryIcon };

frontend/src/components/ui/home.tsx

@@ -1,103 +1,62 @@
 'use client';
-
 import type { Transition, Variants } from 'motion/react';
 import type { HTMLAttributes } from 'react';
 import { forwardRef, useCallback, useImperativeHandle, useRef } from 'react';
 import { motion, useAnimation } from 'motion/react';
-
 import { cn } from '@/lib/utils';
-
 export interface HomeIconHandle {
-  startAnimation: () => void;
-  stopAnimation: () => void;
+    startAnimation: () => void;
+    stopAnimation: () => void;
 }
-
 interface HomeIconProps extends HTMLAttributes<HTMLDivElement> {
-  size?: number;
+    size?: number;
 }
-
 const DEFAULT_TRANSITION: Transition = {
-  duration: 0.6,
-  opacity: { duration: 0.2 },
+    duration: 0.6,
+    opacity: { duration: 0.2 },
 };
-
 const PATH_VARIANTS: Variants = {
-  normal: {
-    pathLength: 1,
-    opacity: 1,
-  },
-  animate: {
-    opacity: [0, 1],
-    pathLength: [0, 1],
-  },
+    normal: {
+        pathLength: 1,
+        opacity: 1,
+    },
+    animate: {
+        opacity: [0, 1],
+        pathLength: [0, 1],
+    },
 };
-
-const HomeIcon = forwardRef<HomeIconHandle, HomeIconProps>(
-  ({ onMouseEnter, onMouseLeave, className, size = 28, ...props }, ref) => {
+const HomeIcon = forwardRef<HomeIconHandle, HomeIconProps>(({ onMouseEnter, onMouseLeave, className, size = 28, ...props }, ref) => {
     const controls = useAnimation();
     const isControlledRef = useRef(false);
-
     useImperativeHandle(ref, () => {
-      isControlledRef.current = true;
-
-      return {
-        startAnimation: () => controls.start('animate'),
-        stopAnimation: () => controls.start('normal'),
-      };
+        isControlledRef.current = true;
+        return {
+            startAnimation: () => controls.start('animate'),
+            stopAnimation: () => controls.start('normal'),
+        };
     });
-
-    const handleMouseEnter = useCallback(
-      (e: React.MouseEvent<HTMLDivElement>) => {
+    const handleMouseEnter = useCallback((e: React.MouseEvent<HTMLDivElement>) => {
         if (!isControlledRef.current) {
-          controls.start('animate');
-        } else {
-          onMouseEnter?.(e);
+            controls.start('animate');
         }
-      },
-      [controls, onMouseEnter]
-    );
-
-    const handleMouseLeave = useCallback(
-      (e: React.MouseEvent<HTMLDivElement>) => {
+        else {
+            onMouseEnter?.(e);
+        }
+    }, [controls, onMouseEnter]);
+    const handleMouseLeave = useCallback((e: React.MouseEvent<HTMLDivElement>) => {
         if (!isControlledRef.current) {
-          controls.start('normal');
-        } else {
-          onMouseLeave?.(e);
+            controls.start('normal');
         }
-      },
-      [controls, onMouseLeave]
-    );
-    return (
-      <div
-        className={cn(className)}
-        onMouseEnter={handleMouseEnter}
-        onMouseLeave={handleMouseLeave}
-        {...props}
-      >
-        <svg
-          xmlns="http://www.w3.org/2000/svg"
-          width={size}
-          height={size}
-          viewBox="0 0 24 24"
-          fill="none"
-          stroke="currentColor"
-          strokeWidth="2"
-          strokeLinecap="round"
-          strokeLinejoin="round"
-        >
-          <path d="M3 10a2 2 0 0 1 .709-1.528l7-5.999a2 2 0 0 1 2.582 0l7 5.999A2 2 0 0 1 21 10v9a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z" />
-          <motion.path
-            d="M15 21v-8a1 1 0 0 0-1-1h-4a1 1 0 0 0-1 1v8"
-            variants={PATH_VARIANTS}
-            transition={DEFAULT_TRANSITION}
-            animate={controls}
-          />
+        else {
+            onMouseLeave?.(e);
+        }
+    }, [controls, onMouseLeave]);
+    return (<div className={cn(className)} onMouseEnter={handleMouseEnter} onMouseLeave={handleMouseLeave} {...props}>
+        <svg xmlns="http://www.w3.org/2000/svg" width={size} height={size} viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+          <path d="M3 10a2 2 0 0 1 .709-1.528l7-5.999a2 2 0 0 1 2.582 0l7 5.999A2 2 0 0 1 21 10v9a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z"/>
+          <motion.path d="M15 21v-8a1 1 0 0 0-1-1h-4a1 1 0 0 0-1 1v8" variants={PATH_VARIANTS} transition={DEFAULT_TRANSITION} animate={controls}/>
         </svg>
-      </div>
-    );
-  }
-);
-
+      </div>);
+});
 HomeIcon.displayName = 'HomeIcon';
-
 export { HomeIcon };

frontend/src/components/ui/input-with-context.tsx

@@ -1,216 +1,156 @@
 import * as React from "react";
 import { Input } from "@/components/ui/input";
-import {
-  ContextMenu,
-  ContextMenuContent,
-  ContextMenuItem,
-  ContextMenuSeparator,
-  ContextMenuTrigger,
-} from "@/components/ui/context-menu";
+import { ContextMenu, ContextMenuContent, ContextMenuItem, ContextMenuSeparator, ContextMenuTrigger, } from "@/components/ui/context-menu";
 import { Scissors, Copy, Clipboard, Type } from "lucide-react";
-
-export interface InputWithContextProps
-  extends React.InputHTMLAttributes<HTMLInputElement> {
-  onValueChange?: (value: string) => void;
+export interface InputWithContextProps extends React.InputHTMLAttributes<HTMLInputElement> {
+    onValueChange?: (value: string) => void;
 }
-
-const InputWithContext = React.forwardRef<HTMLInputElement, InputWithContextProps>(
-  ({ className, type, onValueChange, onChange, ...props }, ref) => {
+const InputWithContext = React.forwardRef<HTMLInputElement, InputWithContextProps>(({ className, type, onValueChange, onChange, ...props }, ref) => {
     const inputRef = React.useRef<HTMLInputElement>(null);
     const [hasSelection, setHasSelection] = React.useState(false);
     const [canPaste, setCanPaste] = React.useState(false);
-
-    // Combine refs
     React.useImperativeHandle(ref, () => inputRef.current as HTMLInputElement);
-
-    // Check selection state
     const updateSelectionState = () => {
-      const input = inputRef.current;
-      if (!input) return;
-      const start = input.selectionStart ?? 0;
-      const end = input.selectionEnd ?? 0;
-      setHasSelection(start !== end);
-    };
-
-    // Check clipboard permission when user explicitly opens the context menu.
-    const checkClipboard = async () => {
-      try {
-        const text = await navigator.clipboard.readText();
-        setCanPaste(text.length > 0);
-      } catch {
-        setCanPaste(false);
-      }
-    };
-
-    const handleCut = async () => {
-      const input = inputRef.current;
-      if (!input) return;
-
-      const start = input.selectionStart ?? 0;
-      const end = input.selectionEnd ?? 0;
-      const selectedText = input.value.substring(start, end);
-
-      if (selectedText) {
-        try {
-          await navigator.clipboard.writeText(selectedText);
-          const newValue = input.value.substring(0, start) + input.value.substring(end);
-          
-          // Update value and trigger change
-          input.value = newValue;
-          input.setSelectionRange(start, start);
-          
-          // Trigger React onChange
-          if (onChange) {
-            const event = {
-              target: input,
-              currentTarget: input,
-            } as React.ChangeEvent<HTMLInputElement>;
-            onChange(event);
-          }
-          
-          if (onValueChange) {
-            onValueChange(newValue);
-          }
-          
-          input.focus();
-        } catch (err) {
-          console.error("Failed to cut:", err);
-        }
-      }
-    };
-
-    const handleCopy = async () => {
-      const input = inputRef.current;
-      if (!input) return;
-
-      const start = input.selectionStart ?? 0;
-      const end = input.selectionEnd ?? 0;
-      const selectedText = input.value.substring(start, end);
-
-      if (selectedText) {
-        try {
-          await navigator.clipboard.writeText(selectedText);
-          input.focus();
-        } catch (err) {
-          console.error("Failed to copy:", err);
-        }
-      }
-    };
-
-    const handlePaste = async () => {
-      const input = inputRef.current;
-      if (!input) return;
-
-      try {
-        const text = await navigator.clipboard.readText();
+        const input = inputRef.current;
+        if (!input)
+            return;
         const start = input.selectionStart ?? 0;
         const end = input.selectionEnd ?? 0;
-        
-        const newValue =
-          input.value.substring(0, start) + text + input.value.substring(end);
-        
-        // Update value and trigger change
-        input.value = newValue;
-        const newPosition = start + text.length;
-        input.setSelectionRange(newPosition, newPosition);
-        
-        // Trigger React onChange
-        if (onChange) {
-          const event = {
-            target: input,
-            currentTarget: input,
-          } as React.ChangeEvent<HTMLInputElement>;
-          onChange(event);
-        }
-        
-        if (onValueChange) {
-          onValueChange(newValue);
-        }
-        
-        input.focus();
-        await checkClipboard();
-      } catch (err) {
-        console.error("Failed to paste:", err);
-      }
+        setHasSelection(start !== end);
+    };
+    const checkClipboard = async () => {
+        try {
+            const text = await navigator.clipboard.readText();
+            setCanPaste(text.length > 0);
+        }
+        catch {
+            setCanPaste(false);
+        }
+    };
+    const handleCut = async () => {
+        const input = inputRef.current;
+        if (!input)
+            return;
+        const start = input.selectionStart ?? 0;
+        const end = input.selectionEnd ?? 0;
+        const selectedText = input.value.substring(start, end);
+        if (selectedText) {
+            try {
+                await navigator.clipboard.writeText(selectedText);
+                const newValue = input.value.substring(0, start) + input.value.substring(end);
+                input.value = newValue;
+                input.setSelectionRange(start, start);
+                if (onChange) {
+                    const event = {
+                        target: input,
+                        currentTarget: input,
+                    } as React.ChangeEvent<HTMLInputElement>;
+                    onChange(event);
+                }
+                if (onValueChange) {
+                    onValueChange(newValue);
+                }
+                input.focus();
+            }
+            catch (err) {
+                console.error("Failed to cut:", err);
+            }
+        }
+    };
+    const handleCopy = async () => {
+        const input = inputRef.current;
+        if (!input)
+            return;
+        const start = input.selectionStart ?? 0;
+        const end = input.selectionEnd ?? 0;
+        const selectedText = input.value.substring(start, end);
+        if (selectedText) {
+            try {
+                await navigator.clipboard.writeText(selectedText);
+                input.focus();
+            }
+            catch (err) {
+                console.error("Failed to copy:", err);
+            }
+        }
+    };
+    const handlePaste = async () => {
+        const input = inputRef.current;
+        if (!input)
+            return;
+        try {
+            const text = await navigator.clipboard.readText();
+            const start = input.selectionStart ?? 0;
+            const end = input.selectionEnd ?? 0;
+            const newValue = input.value.substring(0, start) + text + input.value.substring(end);
+            input.value = newValue;
+            const newPosition = start + text.length;
+            input.setSelectionRange(newPosition, newPosition);
+            if (onChange) {
+                const event = {
+                    target: input,
+                    currentTarget: input,
+                } as React.ChangeEvent<HTMLInputElement>;
+                onChange(event);
+            }
+            if (onValueChange) {
+                onValueChange(newValue);
+            }
+            input.focus();
+            await checkClipboard();
+        }
+        catch (err) {
+            console.error("Failed to paste:", err);
+        }
     };
-
     const handleSelectAll = () => {
-      const input = inputRef.current;
-      if (!input) return;
-      input.select();
-      input.focus();
-      updateSelectionState();
+        const input = inputRef.current;
+        if (!input)
+            return;
+        input.select();
+        input.focus();
+        updateSelectionState();
     };
-
     const handleInputChange = (e: React.ChangeEvent<HTMLInputElement>) => {
-      if (onChange) {
-        onChange(e);
-      }
-      if (onValueChange) {
-        onValueChange(e.target.value);
-      }
+        if (onChange) {
+            onChange(e);
+        }
+        if (onValueChange) {
+            onValueChange(e.target.value);
+        }
     };
-
-    return (
-      <ContextMenu
-        onOpenChange={(open) => {
-          if (open) {
-            checkClipboard();
-          }
-        }}
-      >
+    return (<ContextMenu onOpenChange={(open) => {
+            if (open) {
+                checkClipboard();
+            }
+        }}>
         <ContextMenuTrigger asChild>
-          <Input 
-            ref={inputRef} 
-            type={type} 
-            className={className} 
-            onChange={handleInputChange}
-            onSelect={updateSelectionState}
-            onMouseUp={updateSelectionState}
-            onKeyUp={updateSelectionState}
-            {...props} 
-          />
+          <Input ref={inputRef} type={type} className={className} onChange={handleInputChange} onSelect={updateSelectionState} onMouseUp={updateSelectionState} onKeyUp={updateSelectionState} {...props}/>
         </ContextMenuTrigger>
         <ContextMenuContent className="w-48">
-          <ContextMenuItem
-            onSelect={handleCut}
-            disabled={!hasSelection || props.disabled || props.readOnly}
-          >
-            <Scissors className="mr-2 h-4 w-4" />
+          <ContextMenuItem onSelect={handleCut} disabled={!hasSelection || props.disabled || props.readOnly}>
+            <Scissors className="mr-2 h-4 w-4"/>
             Cut
             <span className="ml-auto text-xs text-muted-foreground">Ctrl+X</span>
           </ContextMenuItem>
-          <ContextMenuItem
-            onSelect={handleCopy}
-            disabled={!hasSelection || props.disabled}
-          >
-            <Copy className="mr-2 h-4 w-4" />
+          <ContextMenuItem onSelect={handleCopy} disabled={!hasSelection || props.disabled}>
+            <Copy className="mr-2 h-4 w-4"/>
             Copy
             <span className="ml-auto text-xs text-muted-foreground">Ctrl+C</span>
           </ContextMenuItem>
-          <ContextMenuItem
-            onSelect={handlePaste}
-            disabled={!canPaste || props.disabled || props.readOnly}
-          >
-            <Clipboard className="mr-2 h-4 w-4" />
+          <ContextMenuItem onSelect={handlePaste} disabled={!canPaste || props.disabled || props.readOnly}>
+            <Clipboard className="mr-2 h-4 w-4"/>
             Paste
             <span className="ml-auto text-xs text-muted-foreground">Ctrl+V</span>
           </ContextMenuItem>
           <ContextMenuSeparator />
-          <ContextMenuItem
-            onSelect={handleSelectAll}
-            disabled={!inputRef.current?.value || props.disabled}
-          >
-            <Type className="mr-2 h-4 w-4" />
+          <ContextMenuItem onSelect={handleSelectAll} disabled={!inputRef.current?.value || props.disabled}>
+            <Type className="mr-2 h-4 w-4"/>
             Select All
             <span className="ml-auto text-xs text-muted-foreground">Ctrl+A</span>
           </ContextMenuItem>
         </ContextMenuContent>
-      </ContextMenu>
-    );
-  }
-);
-
+      </ContextMenu>);
+});
 InputWithContext.displayName = "InputWithContext";
-
 export { InputWithContext };

frontend/src/components/ui/input.tsx

@@ -1,21 +1,6 @@
-import * as React from "react"
-
-import { cn } from "@/lib/utils"
-
+import * as React from "react";
+import { cn } from "@/lib/utils";
 function Input({ className, type, ...props }: React.ComponentProps<"input">) {
-  return (
-    <input
-      type={type}
-      data-slot="input"
-      className={cn(
-        "file:text-foreground placeholder:text-muted-foreground selection:bg-primary selection:text-primary-foreground dark:bg-input/30 border-input h-9 w-full min-w-0 rounded-md border bg-transparent px-3 py-1 text-base shadow-xs transition-[color,box-shadow] outline-none file:inline-flex file:h-7 file:border-0 file:bg-transparent file:text-sm file:font-medium disabled:pointer-events-none disabled:cursor-not-allowed disabled:opacity-50 md:text-sm",
-        "focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px]",
-        "aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive",
-        className
-      )}
-      {...props}
-    />
-  )
+    return (<input type={type} data-slot="input" className={cn("file:text-foreground placeholder:text-muted-foreground selection:bg-primary selection:text-primary-foreground dark:bg-input/30 border-input h-9 w-full min-w-0 rounded-md border bg-transparent px-3 py-1 text-base shadow-xs transition-[color,box-shadow] outline-none file:inline-flex file:h-7 file:border-0 file:bg-transparent file:text-sm file:font-medium disabled:pointer-events-none disabled:cursor-not-allowed disabled:opacity-50 md:text-sm", "focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px]", "aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive", className)} {...props}/>);
 }
-
-export { Input }
+export { Input };

frontend/src/components/ui/label.tsx

@@ -1,24 +1,8 @@
-"use client"
-
-import * as React from "react"
-import * as LabelPrimitive from "@radix-ui/react-label"
-
-import { cn } from "@/lib/utils"
-
-function Label({
-  className,
-  ...props
-}: React.ComponentProps<typeof LabelPrimitive.Root>) {
-  return (
-    <LabelPrimitive.Root
-      data-slot="label"
-      className={cn(
-        "flex items-center gap-2 text-sm leading-none font-medium select-none group-data-[disabled=true]:pointer-events-none group-data-[disabled=true]:opacity-50 peer-disabled:cursor-not-allowed peer-disabled:opacity-50",
-        className
-      )}
-      {...props}
-    />
-  )
+"use client";
+import * as React from "react";
+import * as LabelPrimitive from "@radix-ui/react-label";
+import { cn } from "@/lib/utils";
+function Label({ className, ...props }: React.ComponentProps<typeof LabelPrimitive.Root>) {
+    return (<LabelPrimitive.Root data-slot="label" className={cn("flex items-center gap-2 text-sm leading-none font-medium select-none group-data-[disabled=true]:pointer-events-none group-data-[disabled=true]:opacity-50 peer-disabled:cursor-not-allowed peer-disabled:opacity-50", className)} {...props}/>);
 }
-
-export { Label }
+export { Label };

frontend/src/components/ui/menubar.tsx

@@ -0,0 +1,60 @@
+"use client";
+import * as React from "react";
+import * as MenubarPrimitive from "@radix-ui/react-menubar";
+import { Check, ChevronRight, Circle } from "lucide-react";
+import { cn } from "@/lib/utils";
+const Menubar = React.forwardRef<React.ElementRef<typeof MenubarPrimitive.Root>, React.ComponentPropsWithoutRef<typeof MenubarPrimitive.Root>>(({ className, ...props }, ref) => (<MenubarPrimitive.Root ref={ref} className={cn("flex h-9 items-center space-x-1 rounded-md border bg-background p-1 shadow-sm", className)} {...props}/>));
+Menubar.displayName = MenubarPrimitive.Root.displayName;
+const MenubarMenu = MenubarPrimitive.Menu;
+const MenubarGroup = MenubarPrimitive.Group;
+const MenubarPortal = MenubarPrimitive.Portal;
+const MenubarSub = MenubarPrimitive.Sub;
+const MenubarRadioGroup = MenubarPrimitive.RadioGroup;
+const MenubarTrigger = React.forwardRef<React.ElementRef<typeof MenubarPrimitive.Trigger>, React.ComponentPropsWithoutRef<typeof MenubarPrimitive.Trigger>>(({ className, ...props }, ref) => (<MenubarPrimitive.Trigger ref={ref} className={cn("flex cursor-default select-none items-center rounded-sm px-3 py-1 text-sm font-medium outline-none focus:bg-accent focus:text-accent-foreground data-[state=open]:bg-accent data-[state=open]:text-accent-foreground", className)} {...props}/>));
+MenubarTrigger.displayName = MenubarPrimitive.Trigger.displayName;
+const MenubarSubTrigger = React.forwardRef<React.ElementRef<typeof MenubarPrimitive.SubTrigger>, React.ComponentPropsWithoutRef<typeof MenubarPrimitive.SubTrigger> & {
+    inset?: boolean;
+}>(({ className, inset, children, ...props }, ref) => (<MenubarPrimitive.SubTrigger ref={ref} className={cn("flex cursor-default select-none items-center rounded-sm px-2 py-1.5 text-sm outline-none focus:bg-accent focus:text-accent-foreground data-[state=open]:bg-accent data-[state=open]:text-accent-foreground", inset && "pl-8", className)} {...props}>
+    {children}
+    <ChevronRight className="ml-auto h-4 w-4"/>
+  </MenubarPrimitive.SubTrigger>));
+MenubarSubTrigger.displayName = MenubarPrimitive.SubTrigger.displayName;
+const MenubarSubContent = React.forwardRef<React.ElementRef<typeof MenubarPrimitive.SubContent>, React.ComponentPropsWithoutRef<typeof MenubarPrimitive.SubContent>>(({ className, ...props }, ref) => (<MenubarPrimitive.SubContent ref={ref} className={cn("z-50 min-w-[8rem] overflow-hidden rounded-md border bg-popover p-1 text-popover-foreground shadow-lg data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2", className)} {...props}/>));
+MenubarSubContent.displayName = MenubarPrimitive.SubContent.displayName;
+const MenubarContent = React.forwardRef<React.ElementRef<typeof MenubarPrimitive.Content>, React.ComponentPropsWithoutRef<typeof MenubarPrimitive.Content>>(({ className, align = "start", alignOffset = -4, sideOffset = 8, ...props }, ref) => (<MenubarPrimitive.Portal>
+    <MenubarPrimitive.Content ref={ref} align={align} alignOffset={alignOffset} sideOffset={sideOffset} className={cn("z-50 min-w-[12rem] overflow-hidden rounded-md border bg-popover p-1 text-popover-foreground shadow-md animate-in slide-in-from-top-1", className)} {...props}/>
+  </MenubarPrimitive.Portal>));
+MenubarContent.displayName = MenubarPrimitive.Content.displayName;
+const MenubarItem = React.forwardRef<React.ElementRef<typeof MenubarPrimitive.Item>, React.ComponentPropsWithoutRef<typeof MenubarPrimitive.Item> & {
+    inset?: boolean;
+}>(({ className, inset, ...props }, ref) => (<MenubarPrimitive.Item ref={ref} className={cn("relative flex cursor-default select-none items-center rounded-sm px-2 py-1.5 text-sm outline-none focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50", inset && "pl-8", className)} {...props}/>));
+MenubarItem.displayName = MenubarPrimitive.Item.displayName;
+const MenubarCheckboxItem = React.forwardRef<React.ElementRef<typeof MenubarPrimitive.CheckboxItem>, React.ComponentPropsWithoutRef<typeof MenubarPrimitive.CheckboxItem>>(({ className, children, checked, ...props }, ref) => (<MenubarPrimitive.CheckboxItem ref={ref} className={cn("relative flex cursor-default select-none items-center rounded-sm py-1.5 pl-8 pr-2 text-sm outline-none focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50", className)} checked={checked} {...props}>
+    <span className="absolute left-2 flex h-3.5 w-3.5 items-center justify-center">
+      <MenubarPrimitive.ItemIndicator>
+        <Check className="h-4 w-4"/>
+      </MenubarPrimitive.ItemIndicator>
+    </span>
+    {children}
+  </MenubarPrimitive.CheckboxItem>));
+MenubarCheckboxItem.displayName = MenubarPrimitive.CheckboxItem.displayName;
+const MenubarRadioItem = React.forwardRef<React.ElementRef<typeof MenubarPrimitive.RadioItem>, React.ComponentPropsWithoutRef<typeof MenubarPrimitive.RadioItem>>(({ className, children, ...props }, ref) => (<MenubarPrimitive.RadioItem ref={ref} className={cn("relative flex cursor-default select-none items-center rounded-sm py-1.5 pl-8 pr-2 text-sm outline-none focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50", className)} {...props}>
+    <span className="absolute left-2 flex h-3.5 w-3.5 items-center justify-center">
+      <MenubarPrimitive.ItemIndicator>
+        <Circle className="h-2 w-2 fill-current"/>
+      </MenubarPrimitive.ItemIndicator>
+    </span>
+    {children}
+  </MenubarPrimitive.RadioItem>));
+MenubarRadioItem.displayName = MenubarPrimitive.RadioItem.displayName;
+const MenubarLabel = React.forwardRef<React.ElementRef<typeof MenubarPrimitive.Label>, React.ComponentPropsWithoutRef<typeof MenubarPrimitive.Label> & {
+    inset?: boolean;
+}>(({ className, inset, ...props }, ref) => (<MenubarPrimitive.Label ref={ref} className={cn("px-2 py-1.5 text-sm font-semibold", inset && "pl-8", className)} {...props}/>));
+MenubarLabel.displayName = MenubarPrimitive.Label.displayName;
+const MenubarSeparator = React.forwardRef<React.ElementRef<typeof MenubarPrimitive.Separator>, React.ComponentPropsWithoutRef<typeof MenubarPrimitive.Separator>>(({ className, ...props }, ref) => (<MenubarPrimitive.Separator ref={ref} className={cn("-mx-1 my-1 h-px bg-muted", className)} {...props}/>));
+MenubarSeparator.displayName = MenubarPrimitive.Separator.displayName;
+const MenubarShortcut = ({ className, ...props }: React.HTMLAttributes<HTMLSpanElement>) => {
+    return (<span className={cn("ml-auto text-xs tracking-widest text-muted-foreground", className)} {...props}/>);
+};
+MenubarShortcut.displayname = "MenubarShortcut";
+export { Menubar, MenubarMenu, MenubarTrigger, MenubarContent, MenubarItem, MenubarSeparator, MenubarLabel, MenubarCheckboxItem, MenubarRadioGroup, MenubarRadioItem, MenubarPortal, MenubarSubContent, MenubarSubTrigger, MenubarSub, MenubarGroup, MenubarShortcut, };

frontend/src/components/ui/pagination.tsx

@@ -1,127 +1,41 @@
-import * as React from "react"
-import {
-  ChevronLeftIcon,
-  ChevronRightIcon,
-  MoreHorizontalIcon,
-} from "lucide-react"
-
-import { cn } from "@/lib/utils"
-import { Button, buttonVariants } from "@/components/ui/button"
-
+import * as React from "react";
+import { ChevronLeftIcon, ChevronRightIcon, MoreHorizontalIcon, } from "lucide-react";
+import { cn } from "@/lib/utils";
+import { Button, buttonVariants } from "@/components/ui/button";
 function Pagination({ className, ...props }: React.ComponentProps<"nav">) {
-  return (
-    <nav
-      role="navigation"
-      aria-label="pagination"
-      data-slot="pagination"
-      className={cn("mx-auto flex w-full justify-center", className)}
-      {...props}
-    />
-  )
+    return (<nav role="navigation" aria-label="pagination" data-slot="pagination" className={cn("mx-auto flex w-full justify-center", className)} {...props}/>);
 }
-
-function PaginationContent({
-  className,
-  ...props
-}: React.ComponentProps<"ul">) {
-  return (
-    <ul
-      data-slot="pagination-content"
-      className={cn("flex flex-row items-center gap-1", className)}
-      {...props}
-    />
-  )
+function PaginationContent({ className, ...props }: React.ComponentProps<"ul">) {
+    return (<ul data-slot="pagination-content" className={cn("flex flex-row items-center gap-1", className)} {...props}/>);
 }
-
 function PaginationItem({ ...props }: React.ComponentProps<"li">) {
-  return <li data-slot="pagination-item" {...props} />
+    return <li data-slot="pagination-item" {...props}/>;
 }
-
 type PaginationLinkProps = {
-  isActive?: boolean
-} & Pick<React.ComponentProps<typeof Button>, "size"> &
-  React.ComponentProps<"a">
-
-function PaginationLink({
-  className,
-  isActive,
-  size = "icon",
-  ...props
-}: PaginationLinkProps) {
-  return (
-    <a
-      aria-current={isActive ? "page" : undefined}
-      data-slot="pagination-link"
-      data-active={isActive}
-      className={cn(
-        buttonVariants({
-          variant: isActive ? "outline" : "ghost",
-          size,
-        }),
-        className
-      )}
-      {...props}
-    />
-  )
+    isActive?: boolean;
+} & Pick<React.ComponentProps<typeof Button>, "size"> & React.ComponentProps<"a">;
+function PaginationLink({ className, isActive, size = "icon", ...props }: PaginationLinkProps) {
+    return (<a aria-current={isActive ? "page" : undefined} data-slot="pagination-link" data-active={isActive} className={cn(buttonVariants({
+            variant: isActive ? "outline" : "ghost",
+            size,
+        }), className)} {...props}/>);
 }
-
-function PaginationPrevious({
-  className,
-  ...props
-}: React.ComponentProps<typeof PaginationLink>) {
-  return (
-    <PaginationLink
-      aria-label="Go to previous page"
-      size="default"
-      className={cn("gap-1 px-2.5 sm:pl-2.5", className)}
-      {...props}
-    >
+function PaginationPrevious({ className, ...props }: React.ComponentProps<typeof PaginationLink>) {
+    return (<PaginationLink aria-label="Go to previous page" size="default" className={cn("gap-1 px-2.5 sm:pl-2.5", className)} {...props}>
       <ChevronLeftIcon />
       <span className="hidden sm:block">Previous</span>
-    </PaginationLink>
-  )
+    </PaginationLink>);
 }
-
-function PaginationNext({
-  className,
-  ...props
-}: React.ComponentProps<typeof PaginationLink>) {
-  return (
-    <PaginationLink
-      aria-label="Go to next page"
-      size="default"
-      className={cn("gap-1 px-2.5 sm:pr-2.5", className)}
-      {...props}
-    >
+function PaginationNext({ className, ...props }: React.ComponentProps<typeof PaginationLink>) {
+    return (<PaginationLink aria-label="Go to next page" size="default" className={cn("gap-1 px-2.5 sm:pr-2.5", className)} {...props}>
       <span className="hidden sm:block">Next</span>
       <ChevronRightIcon />
-    </PaginationLink>
-  )
+    </PaginationLink>);
 }
-
-function PaginationEllipsis({
-  className,
-  ...props
-}: React.ComponentProps<"span">) {
-  return (
-    <span
-      aria-hidden
-      data-slot="pagination-ellipsis"
-      className={cn("flex size-9 items-center justify-center", className)}
-      {...props}
-    >
-      <MoreHorizontalIcon className="size-4" />
+function PaginationEllipsis({ className, ...props }: React.ComponentProps<"span">) {
+    return (<span aria-hidden data-slot="pagination-ellipsis" className={cn("flex size-9 items-center justify-center", className)} {...props}>
+      <MoreHorizontalIcon className="size-4"/>
       <span className="sr-only">More pages</span>
-    </span>
-  )
-}
-
-export {
-  Pagination,
-  PaginationContent,
-  PaginationLink,
-  PaginationItem,
-  PaginationPrevious,
-  PaginationNext,
-  PaginationEllipsis,
+    </span>);
 }
+export { Pagination, PaginationContent, PaginationLink, PaginationItem, PaginationPrevious, PaginationNext, PaginationEllipsis, };

frontend/src/components/ui/progress.tsx

@@ -1,31 +1,10 @@
-"use client"
-
-import * as React from "react"
-import * as ProgressPrimitive from "@radix-ui/react-progress"
-
-import { cn } from "@/lib/utils"
-
-function Progress({
-  className,
-  value,
-  ...props
-}: React.ComponentProps<typeof ProgressPrimitive.Root>) {
-  return (
-    <ProgressPrimitive.Root
-      data-slot="progress"
-      className={cn(
-        "bg-primary/20 relative h-2 w-full overflow-hidden rounded-full",
-        className
-      )}
-      {...props}
-    >
-      <ProgressPrimitive.Indicator
-        data-slot="progress-indicator"
-        className="bg-primary h-full w-full flex-1 transition-all"
-        style={{ transform: `translateX(-${100 - (value || 0)}%)` }}
-      />
-    </ProgressPrimitive.Root>
-  )
+"use client";
+import * as React from "react";
+import * as ProgressPrimitive from "@radix-ui/react-progress";
+import { cn } from "@/lib/utils";
+function Progress({ className, value, ...props }: React.ComponentProps<typeof ProgressPrimitive.Root>) {
+    return (<ProgressPrimitive.Root data-slot="progress" className={cn("bg-primary/20 relative h-2 w-full overflow-hidden rounded-full", className)} {...props}>
+      <ProgressPrimitive.Indicator data-slot="progress-indicator" className="bg-primary h-full w-full flex-1 transition-all" style={{ transform: `translateX(-${100 - (value || 0)}%)` }}/>
+    </ProgressPrimitive.Root>);
 }
-
-export { Progress }
+export { Progress };

frontend/src/components/ui/scroll-area.tsx

@@ -0,0 +1,18 @@
+import * as React from "react";
+import * as ScrollAreaPrimitive from "@radix-ui/react-scroll-area";
+import { cn } from "@/lib/utils";
+const ScrollArea = React.forwardRef<React.ElementRef<typeof ScrollAreaPrimitive.Root>, React.ComponentPropsWithoutRef<typeof ScrollAreaPrimitive.Root>>(({ className, children, ...props }, ref) => (<ScrollAreaPrimitive.Root ref={ref} className={cn("relative overflow-hidden", className)} {...props}>
+    <ScrollAreaPrimitive.Viewport className="h-full w-full rounded-[inherit]">
+      {children}
+    </ScrollAreaPrimitive.Viewport>
+    <ScrollBar />
+    <ScrollAreaPrimitive.Corner />
+  </ScrollAreaPrimitive.Root>));
+ScrollArea.displayName = ScrollAreaPrimitive.Root.displayName;
+const ScrollBar = React.forwardRef<React.ElementRef<typeof ScrollAreaPrimitive.ScrollAreaScrollbar>, React.ComponentPropsWithoutRef<typeof ScrollAreaPrimitive.ScrollAreaScrollbar>>(({ className, orientation = "vertical", ...props }, ref) => (<ScrollAreaPrimitive.ScrollAreaScrollbar ref={ref} orientation={orientation} className={cn("flex touch-none select-none transition-colors", orientation === "vertical" &&
+        "h-full w-2.5 border-l border-l-transparent p-[1px]", orientation === "horizontal" &&
+        "h-2.5 flex-col border-t border-t-transparent p-[1px]", className)} {...props}>
+    <ScrollAreaPrimitive.ScrollAreaThumb className="relative flex-1 rounded-full bg-border"/>
+  </ScrollAreaPrimitive.ScrollAreaScrollbar>));
+ScrollBar.displayName = ScrollAreaPrimitive.ScrollAreaScrollbar.displayName;
+export { ScrollArea, ScrollBar };

frontend/src/components/ui/select.tsx

@@ -1,185 +1,63 @@
-import * as React from "react"
-import * as SelectPrimitive from "@radix-ui/react-select"
-import { CheckIcon, ChevronDownIcon, ChevronUpIcon } from "lucide-react"
-
-import { cn } from "@/lib/utils"
-
-function Select({
-  ...props
-}: React.ComponentProps<typeof SelectPrimitive.Root>) {
-  return <SelectPrimitive.Root data-slot="select" {...props} />
+import * as React from "react";
+import * as SelectPrimitive from "@radix-ui/react-select";
+import { CheckIcon, ChevronDownIcon, ChevronUpIcon } from "lucide-react";
+import { cn } from "@/lib/utils";
+function Select({ ...props }: React.ComponentProps<typeof SelectPrimitive.Root>) {
+    return <SelectPrimitive.Root data-slot="select" {...props}/>;
 }
-
-function SelectGroup({
-  ...props
-}: React.ComponentProps<typeof SelectPrimitive.Group>) {
-  return <SelectPrimitive.Group data-slot="select-group" {...props} />
+function SelectGroup({ ...props }: React.ComponentProps<typeof SelectPrimitive.Group>) {
+    return <SelectPrimitive.Group data-slot="select-group" {...props}/>;
 }
-
-function SelectValue({
-  ...props
-}: React.ComponentProps<typeof SelectPrimitive.Value>) {
-  return <SelectPrimitive.Value data-slot="select-value" {...props} />
+function SelectValue({ ...props }: React.ComponentProps<typeof SelectPrimitive.Value>) {
+    return <SelectPrimitive.Value data-slot="select-value" {...props}/>;
 }
-
-function SelectTrigger({
-  className,
-  size = "default",
-  children,
-  ...props
-}: React.ComponentProps<typeof SelectPrimitive.Trigger> & {
-  size?: "sm" | "default"
+function SelectTrigger({ className, size = "default", children, ...props }: React.ComponentProps<typeof SelectPrimitive.Trigger> & {
+    size?: "sm" | "default";
 }) {
-  return (
-    <SelectPrimitive.Trigger
-      data-slot="select-trigger"
-      data-size={size}
-      className={cn(
-        "border-input data-placeholder:text-muted-foreground [&_svg:not([class*='text-'])]:text-muted-foreground focus-visible:border-ring focus-visible:ring-ring/50 aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive dark:bg-input/30 dark:hover:bg-input/50 flex w-fit items-center justify-between gap-2 rounded-md border bg-transparent px-3 py-2 text-sm whitespace-nowrap shadow-xs transition-[color,box-shadow] outline-none focus-visible:ring-[3px] disabled:cursor-not-allowed disabled:opacity-50 data-[size=default]:h-9 data-[size=sm]:h-8 *:data-[slot=select-value]:line-clamp-1 *:data-[slot=select-value]:flex *:data-[slot=select-value]:items-center *:data-[slot=select-value]:gap-2 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
-        className
-      )}
-      {...props}
-    >
+    return (<SelectPrimitive.Trigger data-slot="select-trigger" data-size={size} className={cn("border-input data-placeholder:text-muted-foreground [&_svg:not([class*='text-'])]:text-muted-foreground focus-visible:border-ring focus-visible:ring-ring/50 aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive dark:bg-input/30 dark:hover:bg-input/50 flex w-fit items-center justify-between gap-2 rounded-md border bg-transparent px-3 py-2 text-sm whitespace-nowrap shadow-xs transition-[color,box-shadow] outline-none focus-visible:ring-[3px] disabled:cursor-not-allowed disabled:opacity-50 data-[size=default]:h-9 data-[size=sm]:h-8 *:data-[slot=select-value]:line-clamp-1 *:data-[slot=select-value]:flex *:data-[slot=select-value]:items-center *:data-[slot=select-value]:gap-2 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4", className)} {...props}>
       {children}
       <SelectPrimitive.Icon asChild>
-        <ChevronDownIcon className="size-4 opacity-50" />
+        <ChevronDownIcon className="size-4 opacity-50"/>
       </SelectPrimitive.Icon>
-    </SelectPrimitive.Trigger>
-  )
+    </SelectPrimitive.Trigger>);
 }
-
-function SelectContent({
-  className,
-  children,
-  position = "popper",
-  align = "center",
-  ...props
-}: React.ComponentProps<typeof SelectPrimitive.Content>) {
-  return (
-    <SelectPrimitive.Portal>
-      <SelectPrimitive.Content
-        data-slot="select-content"
-        className={cn(
-          "bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 relative z-50 max-h-(--radix-select-content-available-height) min-w-32 origin-(--radix-select-content-transform-origin) overflow-x-hidden overflow-y-auto rounded-md border shadow-md",
-          position === "popper" &&
-            "data-[side=bottom]:translate-y-1 data-[side=left]:-translate-x-1 data-[side=right]:translate-x-1 data-[side=top]:-translate-y-1",
-          className
-        )}
-        position={position}
-        align={align}
-        {...props}
-      >
+function SelectContent({ className, children, position = "popper", align = "center", ...props }: React.ComponentProps<typeof SelectPrimitive.Content>) {
+    return (<SelectPrimitive.Portal>
+      <SelectPrimitive.Content data-slot="select-content" className={cn("bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 relative z-50 max-h-(--radix-select-content-available-height) min-w-32 origin-(--radix-select-content-transform-origin) overflow-x-hidden overflow-y-auto rounded-md border shadow-md", position === "popper" &&
+            "data-[side=bottom]:translate-y-1 data-[side=left]:-translate-x-1 data-[side=right]:translate-x-1 data-[side=top]:-translate-y-1", className)} position={position} align={align} {...props}>
         <SelectScrollUpButton />
-        <SelectPrimitive.Viewport
-          className={cn(
-            "p-1",
-            position === "popper" &&
-              "h-(--radix-select-trigger-height) w-full min-w-(--radix-select-trigger-width) scroll-my-1"
-          )}
-        >
+        <SelectPrimitive.Viewport className={cn("p-1", position === "popper" &&
+            "h-(--radix-select-trigger-height) w-full min-w-(--radix-select-trigger-width) scroll-my-1")}>
           {children}
         </SelectPrimitive.Viewport>
         <SelectScrollDownButton />
       </SelectPrimitive.Content>
-    </SelectPrimitive.Portal>
-  )
+    </SelectPrimitive.Portal>);
 }
-
-function SelectLabel({
-  className,
-  ...props
-}: React.ComponentProps<typeof SelectPrimitive.Label>) {
-  return (
-    <SelectPrimitive.Label
-      data-slot="select-label"
-      className={cn("text-muted-foreground px-2 py-1.5 text-xs", className)}
-      {...props}
-    />
-  )
+function SelectLabel({ className, ...props }: React.ComponentProps<typeof SelectPrimitive.Label>) {
+    return (<SelectPrimitive.Label data-slot="select-label" className={cn("text-muted-foreground px-2 py-1.5 text-xs", className)} {...props}/>);
 }
-
-function SelectItem({
-  className,
-  children,
-  ...props
-}: React.ComponentProps<typeof SelectPrimitive.Item>) {
-  return (
-    <SelectPrimitive.Item
-      data-slot="select-item"
-      className={cn(
-        "focus:bg-accent focus:text-accent-foreground [&_svg:not([class*='text-'])]:text-muted-foreground relative flex w-full cursor-default items-center gap-2 rounded-sm py-1.5 pr-8 pl-2 text-sm outline-hidden select-none data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4 *:[span]:last:flex *:[span]:last:items-center *:[span]:last:gap-2",
-        className
-      )}
-      {...props}
-    >
+function SelectItem({ className, children, ...props }: React.ComponentProps<typeof SelectPrimitive.Item>) {
+    return (<SelectPrimitive.Item data-slot="select-item" className={cn("focus:bg-accent focus:text-accent-foreground [&_svg:not([class*='text-'])]:text-muted-foreground relative flex w-full cursor-default items-center gap-2 rounded-sm py-1.5 pr-8 pl-2 text-sm outline-hidden select-none data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4 *:[span]:last:flex *:[span]:last:items-center *:[span]:last:gap-2", className)} {...props}>
       <span className="absolute right-2 flex size-3.5 items-center justify-center">
         <SelectPrimitive.ItemIndicator>
-          <CheckIcon className="size-4" />
+          <CheckIcon className="size-4"/>
         </SelectPrimitive.ItemIndicator>
       </span>
       <SelectPrimitive.ItemText>{children}</SelectPrimitive.ItemText>
-    </SelectPrimitive.Item>
-  )
+    </SelectPrimitive.Item>);
 }
-
-function SelectSeparator({
-  className,
-  ...props
-}: React.ComponentProps<typeof SelectPrimitive.Separator>) {
-  return (
-    <SelectPrimitive.Separator
-      data-slot="select-separator"
-      className={cn("bg-border pointer-events-none -mx-1 my-1 h-px", className)}
-      {...props}
-    />
-  )
+function SelectSeparator({ className, ...props }: React.ComponentProps<typeof SelectPrimitive.Separator>) {
+    return (<SelectPrimitive.Separator data-slot="select-separator" className={cn("bg-border pointer-events-none -mx-1 my-1 h-px", className)} {...props}/>);
 }
-
-function SelectScrollUpButton({
-  className,
-  ...props
-}: React.ComponentProps<typeof SelectPrimitive.ScrollUpButton>) {
-  return (
-    <SelectPrimitive.ScrollUpButton
-      data-slot="select-scroll-up-button"
-      className={cn(
-        "flex cursor-default items-center justify-center py-1",
-        className
-      )}
-      {...props}
-    >
-      <ChevronUpIcon className="size-4" />
-    </SelectPrimitive.ScrollUpButton>
-  )
+function SelectScrollUpButton({ className, ...props }: React.ComponentProps<typeof SelectPrimitive.ScrollUpButton>) {
+    return (<SelectPrimitive.ScrollUpButton data-slot="select-scroll-up-button" className={cn("flex cursor-default items-center justify-center py-1", className)} {...props}>
+      <ChevronUpIcon className="size-4"/>
+    </SelectPrimitive.ScrollUpButton>);
 }
-
-function SelectScrollDownButton({
-  className,
-  ...props
-}: React.ComponentProps<typeof SelectPrimitive.ScrollDownButton>) {
-  return (
-    <SelectPrimitive.ScrollDownButton
-      data-slot="select-scroll-down-button"
-      className={cn(
-        "flex cursor-default items-center justify-center py-1",
-        className
-      )}
-      {...props}
-    >
-      <ChevronDownIcon className="size-4" />
-    </SelectPrimitive.ScrollDownButton>
-  )
-}
-
-export {
-  Select,
-  SelectContent,
-  SelectGroup,
-  SelectItem,
-  SelectLabel,
-  SelectScrollDownButton,
-  SelectScrollUpButton,
-  SelectSeparator,
-  SelectTrigger,
-  SelectValue,
+function SelectScrollDownButton({ className, ...props }: React.ComponentProps<typeof SelectPrimitive.ScrollDownButton>) {
+    return (<SelectPrimitive.ScrollDownButton data-slot="select-scroll-down-button" className={cn("flex cursor-default items-center justify-center py-1", className)} {...props}>
+      <ChevronDownIcon className="size-4"/>
+    </SelectPrimitive.ScrollDownButton>);
 }
+export { Select, SelectContent, SelectGroup, SelectItem, SelectLabel, SelectScrollDownButton, SelectScrollUpButton, SelectSeparator, SelectTrigger, SelectValue, };

frontend/src/components/ui/settings.tsx

@@ -1,92 +1,54 @@
 'use client';
-
 import type { HTMLAttributes } from 'react';
 import { forwardRef, useCallback, useImperativeHandle, useRef } from 'react';
 import { motion, useAnimation } from 'motion/react';
-
 import { cn } from '@/lib/utils';
-
 export interface SettingsIconHandle {
-  startAnimation: () => void;
-  stopAnimation: () => void;
+    startAnimation: () => void;
+    stopAnimation: () => void;
 }
-
 interface SettingsIconProps extends HTMLAttributes<HTMLDivElement> {
-  size?: number;
+    size?: number;
 }
-
-const SettingsIcon = forwardRef<SettingsIconHandle, SettingsIconProps>(
-  ({ onMouseEnter, onMouseLeave, className, size = 28, ...props }, ref) => {
+const SettingsIcon = forwardRef<SettingsIconHandle, SettingsIconProps>(({ onMouseEnter, onMouseLeave, className, size = 28, ...props }, ref) => {
     const controls = useAnimation();
     const isControlledRef = useRef(false);
-
     useImperativeHandle(ref, () => {
-      isControlledRef.current = true;
-
-      return {
-        startAnimation: () => controls.start('animate'),
-        stopAnimation: () => controls.start('normal'),
-      };
+        isControlledRef.current = true;
+        return {
+            startAnimation: () => controls.start('animate'),
+            stopAnimation: () => controls.start('normal'),
+        };
     });
-
-    const handleMouseEnter = useCallback(
-      (e: React.MouseEvent<HTMLDivElement>) => {
+    const handleMouseEnter = useCallback((e: React.MouseEvent<HTMLDivElement>) => {
         if (!isControlledRef.current) {
-          controls.start('animate');
-        } else {
-          onMouseEnter?.(e);
+            controls.start('animate');
         }
-      },
-      [controls, onMouseEnter]
-    );
-
-    const handleMouseLeave = useCallback(
-      (e: React.MouseEvent<HTMLDivElement>) => {
+        else {
+            onMouseEnter?.(e);
+        }
+    }, [controls, onMouseEnter]);
+    const handleMouseLeave = useCallback((e: React.MouseEvent<HTMLDivElement>) => {
         if (!isControlledRef.current) {
-          controls.start('normal');
-        } else {
-          onMouseLeave?.(e);
+            controls.start('normal');
         }
-      },
-      [controls, onMouseLeave]
-    );
-
-    return (
-      <div
-        className={cn(className)}
-        onMouseEnter={handleMouseEnter}
-        onMouseLeave={handleMouseLeave}
-        {...props}
-      >
-        <motion.svg
-          xmlns="http://www.w3.org/2000/svg"
-          width={size}
-          height={size}
-          viewBox="0 0 24 24"
-          fill="none"
-          stroke="currentColor"
-          strokeWidth="2"
-          strokeLinecap="round"
-          strokeLinejoin="round"
-          transition={{ type: 'spring', stiffness: 50, damping: 10 }}
-          variants={{
+        else {
+            onMouseLeave?.(e);
+        }
+    }, [controls, onMouseLeave]);
+    return (<div className={cn(className)} onMouseEnter={handleMouseEnter} onMouseLeave={handleMouseLeave} {...props}>
+        <motion.svg xmlns="http://www.w3.org/2000/svg" width={size} height={size} viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round" transition={{ type: 'spring', stiffness: 50, damping: 10 }} variants={{
             normal: {
-              rotate: 0,
+                rotate: 0,
             },
             animate: {
-              rotate: 180,
+                rotate: 180,
             },
-          }}
-          animate={controls}
-        >
-          <path d="M12.22 2h-.44a2 2 0 0 0-2 2v.18a2 2 0 0 1-1 1.73l-.43.25a2 2 0 0 1-2 0l-.15-.08a2 2 0 0 0-2.73.73l-.22.38a2 2 0 0 0 .73 2.73l.15.1a2 2 0 0 1 1 1.72v.51a2 2 0 0 1-1 1.74l-.15.09a2 2 0 0 0-.73 2.73l.22.38a2 2 0 0 0 2.73.73l.15-.08a2 2 0 0 1 2 0l.43.25a2 2 0 0 1 1 1.73V20a2 2 0 0 0 2 2h.44a2 2 0 0 0 2-2v-.18a2 2 0 0 1 1-1.73l.43-.25a2 2 0 0 1 2 0l.15.08a2 2 0 0 0 2.73-.73l.22-.39a2 2 0 0 0-.73-2.73l-.15-.08a2 2 0 0 1-1-1.74v-.5a2 2 0 0 1 1-1.74l.15-.09a2 2 0 0 0 .73-2.73l-.22-.38a2 2 0 0 0-2.73-.73l-.15.08a2 2 0 0 1-2 0l-.43-.25a2 2 0 0 1-1-1.73V4a2 2 0 0 0-2-2z" />
-          <circle cx="12" cy="12" r="3" />
+        }} animate={controls}>
+          <path d="M12.22 2h-.44a2 2 0 0 0-2 2v.18a2 2 0 0 1-1 1.73l-.43.25a2 2 0 0 1-2 0l-.15-.08a2 2 0 0 0-2.73.73l-.22.38a2 2 0 0 0 .73 2.73l.15.1a2 2 0 0 1 1 1.72v.51a2 2 0 0 1-1 1.74l-.15.09a2 2 0 0 0-.73 2.73l.22.38a2 2 0 0 0 2.73.73l.15-.08a2 2 0 0 1 2 0l.43.25a2 2 0 0 1 1 1.73V20a2 2 0 0 0 2 2h.44a2 2 0 0 0 2-2v-.18a2 2 0 0 1 1-1.73l.43-.25a2 2 0 0 1 2 0l.15.08a2 2 0 0 0 2.73-.73l.22-.39a2 2 0 0 0-.73-2.73l-.15-.08a2 2 0 0 1-1-1.74v-.5a2 2 0 0 1 1-1.74l.15-.09a2 2 0 0 0 .73-2.73l-.22-.38a2 2 0 0 0-2.73-.73l-.15.08a2 2 0 0 1-2 0l-.43-.25a2 2 0 0 1-1-1.73V4a2 2 0 0 0-2-2z"/>
+          <circle cx="12" cy="12" r="3"/>
         </motion.svg>
-      </div>
-    );
-  }
-);
-
+      </div>);
+});
 SettingsIcon.displayName = 'SettingsIcon';
-
 export { SettingsIcon };