v7.0

2025-12-24 09:09:39 +07:00 · 2025-12-24 08:55:23 +07:00 · 2025-12-24 08:50:43 +07:00 · 2025-12-20 10:57:13 +07:00 · 2025-12-20 10:43:34 +07:00 · 2025-12-20 10:36:39 +07:00
129 changed files with 26048 additions and 3975 deletions
@@ -0,0 +1,393 @@
+name: Build Multi-Platform
+
+on:
+  push:
+    tags:
+      - 'v*'
+  workflow_dispatch:
+
+env:
+  GO_VERSION: '1.25.5'
+  NODE_VERSION: '24'
+
+jobs:
+  build-windows:
+    name: Build Windows
+    runs-on: windows-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Get version from tag
+        id: version
+        shell: bash
+        run: |
+          if [[ "${{ github.ref }}" == refs/tags/* ]]; then
+            VERSION=${GITHUB_REF#refs/tags/}
+          else
+            VERSION="dev"
+          fi
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ env.GO_VERSION }}
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 9
+
+      - name: Get pnpm store directory
+        shell: bash
+        run: |
+          echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV
+
+      - name: Setup pnpm cache
+        continue-on-error: true
+        uses: actions/cache@v4
+        with:
+          path: ${{ env.STORE_PATH }}
+          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('frontend/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pnpm-store-
+
+      - name: Install Wails CLI
+        run: go install github.com/wailsapp/wails/v2/cmd/wails@latest
+
+      - name: Install frontend dependencies
+        working-directory: frontend
+        run: |
+          pnpm install
+          pnpm run generate-icon
+
+      - name: Install UPX
+        run: |
+          choco install upx -y
+
+      - name: Build application
+        run: wails build -platform windows/amd64
+
+      - name: Compress with UPX
+        run: |
+          upx --best --lzma "build\bin\SpotiFLAC.exe"
+
+      - name: Prepare artifacts
+        run: |
+          mkdir -p dist
+          Copy-Item -Path "build\bin\SpotiFLAC.exe" -Destination "dist\SpotiFLAC.exe"
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: windows-portable
+          path: dist/SpotiFLAC.exe
+          retention-days: 7
+
+  build-macos:
+    name: Build macOS
+    runs-on: macos-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Get version from tag
+        id: version
+        run: |
+          if [[ "${{ github.ref }}" == refs/tags/* ]]; then
+            VERSION=${GITHUB_REF#refs/tags/}
+          else
+            VERSION="dev"
+          fi
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ env.GO_VERSION }}
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 9
+
+      - name: Get pnpm store directory
+        run: |
+          echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV
+
+      - name: Setup pnpm cache
+        continue-on-error: true
+        uses: actions/cache@v4
+        with:
+          path: ${{ env.STORE_PATH }}
+          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('frontend/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pnpm-store-
+
+      - name: Install Wails CLI
+        run: go install github.com/wailsapp/wails/v2/cmd/wails@latest
+
+      - name: Install frontend dependencies
+        working-directory: frontend
+        run: |
+          pnpm install
+          pnpm run generate-icon
+
+      - name: Build application
+        run: wails build -platform darwin/universal
+
+      - name: Create DMG
+        run: |
+          mkdir -p dist
+          # Install create-dmg if not available
+          brew install create-dmg || true
+
+          # Create DMG
+          create-dmg \
+            --volname "SpotiFLAC" \
+            --window-pos 200 120 \
+            --window-size 600 400 \
+            --icon-size 100 \
+            --icon "SpotiFLAC.app" 175 120 \
+            --hide-extension "SpotiFLAC.app" \
+            --app-drop-link 425 120 \
+            "dist/SpotiFLAC.dmg" \
+            "build/bin/SpotiFLAC.app" || \
+          # Fallback to hdiutil if create-dmg fails
+          hdiutil create -volname SpotiFLAC -srcfolder build/bin/SpotiFLAC.app -ov -format UDZO dist/SpotiFLAC.dmg
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: macos-portable
+          path: dist/SpotiFLAC.dmg
+          retention-days: 7
+
+  build-linux:
+    name: Build Linux
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Get version from tag
+        id: version
+        run: |
+          if [[ "${{ github.ref }}" == refs/tags/* ]]; then
+            VERSION=${GITHUB_REF#refs/tags/}
+          else
+            VERSION="dev"
+          fi
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ env.GO_VERSION }}
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 9
+
+      - name: Get pnpm store directory
+        run: |
+          echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV
+
+      - name: Setup pnpm cache
+        continue-on-error: true
+        uses: actions/cache@v4
+        with:
+          path: ${{ env.STORE_PATH }}
+          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('frontend/pnpm-lock.yaml') }}
+          restore-keys: |
+            ${{ runner.os }}-pnpm-store-
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libgtk-3-dev libwebkit2gtk-4.1-dev libfuse2 imagemagick upx-ucl
+
+          # Create symlink for webkit2gtk-4.0 -> webkit2gtk-4.1 (Ubuntu 24.04 compatibility)
+          sudo ln -sf /usr/lib/x86_64-linux-gnu/pkgconfig/webkit2gtk-4.1.pc /usr/lib/x86_64-linux-gnu/pkgconfig/webkit2gtk-4.0.pc
+
+      - name: Install Wails CLI
+        run: go install github.com/wailsapp/wails/v2/cmd/wails@latest
+
+      - name: Install frontend dependencies
+        working-directory: frontend
+        run: |
+          pnpm install
+          pnpm run generate-icon
+
+      - name: Build application
+        run: wails build -platform linux/amd64
+
+      - name: Compress with UPX
+        run: |
+          upx --best --lzma build/bin/SpotiFLAC
+
+      - name: Cache appimagetool
+        id: cache-appimagetool
+        uses: actions/cache@v4
+        with:
+          path: appimagetool
+          key: appimagetool-x86_64-v1
+
+      - name: Download appimagetool
+        if: steps.cache-appimagetool.outputs.cache-hit != 'true'
+        run: |
+          wget --timeout=30 --tries=5 --retry-connrefused --waitretry=5 -O appimagetool https://github.com/AppImage/AppImageKit/releases/download/continuous/appimagetool-x86_64.AppImage || \
+          wget --timeout=30 --tries=5 --retry-connrefused --waitretry=5 -O appimagetool https://github.com/AppImage/AppImageKit/releases/download/13/appimagetool-x86_64.AppImage
+
+      - name: Make appimagetool executable
+        run: chmod +x appimagetool
+
+      - name: Create AppImage
+        run: |
+          mkdir -p AppDir/usr/bin
+          mkdir -p AppDir/usr/share/applications
+          mkdir -p AppDir/usr/share/icons/hicolor/256x256/apps
+
+          # Copy binary
+          cp build/bin/SpotiFLAC AppDir/usr/bin/
+
+          # Create desktop file
+          cat > AppDir/spotiflac.desktop << 'EOF'
+          [Desktop Entry]
+          Name=SpotiFLAC
+          Exec=SpotiFLAC
+          Icon=spotiflac
+          Type=Application
+          Categories=Audio;AudioVideo;
+          Comment=Get Spotify tracks in true FLAC from Tidal/Deezer
+          EOF
+
+          cp AppDir/spotiflac.desktop AppDir/usr/share/applications/
+
+          # Create icon
+          if [ -f "build/appicon.png" ]; then
+            convert build/appicon.png -resize 256x256 AppDir/spotiflac.png
+          elif [ -f "frontend/public/icon.svg" ]; then
+            convert -background none -size 256x256 frontend/public/icon.svg AppDir/spotiflac.png
+          else
+            echo "Warning: No icon found, building without icon"
+          fi
+
+          # Copy icon if exists
+          if [ -f "AppDir/spotiflac.png" ]; then
+            cp AppDir/spotiflac.png AppDir/usr/share/icons/hicolor/256x256/apps/
+            cp AppDir/spotiflac.png AppDir/.DirIcon
+          fi
+
+          # Create AppRun
+          cat > AppDir/AppRun << 'EOF'
+          #!/bin/sh
+          SELF=$(readlink -f "$0")
+          HERE=${SELF%/*}
+          export PATH="${HERE}/usr/bin/:${PATH}"
+          export LD_LIBRARY_PATH="${HERE}/usr/lib/:${LD_LIBRARY_PATH}"
+          exec "${HERE}/usr/bin/SpotiFLAC" "$@"
+          EOF
+          chmod +x AppDir/AppRun
+
+          # Create AppImage
+          mkdir -p dist
+          ARCH=x86_64 ./appimagetool --no-appstream AppDir dist/SpotiFLAC.AppImage
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: linux-portable
+          path: dist/SpotiFLAC.AppImage
+          retention-days: 7
+
+  create-release:
+    name: Create Release
+    needs: [build-windows, build-macos, build-linux]
+    runs-on: ubuntu-latest
+    if: startsWith(github.ref, 'refs/tags/v')
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Get version from tag
+        id: version
+        run: |
+          VERSION=${GITHUB_REF#refs/tags/}
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+
+      - name: Download all artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: artifacts
+
+      - name: Display structure of downloaded files
+        run: ls -R artifacts
+
+      - name: Create Release
+        uses: softprops/action-gh-release@v2
+        with:
+          draft: true
+          prerelease: false
+          generate_release_notes: false
+          body: |
+            ## Changelog
+
+            ## Downloads
+
+            - `SpotiFLAC.exe` - Windows
+            - `SpotiFLAC.dmg` - macOS
+            - `SpotiFLAC.AppImage` - Linux
+
+            <details>
+            <summary><b>Linux Requirements</b></summary>
+
+            The AppImage requires `webkit2gtk-4.1` to be installed on your system:
+
+            **Ubuntu/Debian:**
+            ```bash
+            sudo apt install libwebkit2gtk-4.1-0
+            ```
+
+            **Arch Linux:**
+            ```bash
+            sudo pacman -S webkit2gtk-4.1
+            ```
+
+            **Fedora:**
+            ```bash
+            sudo dnf install webkit2gtk4.1
+            ```
+
+            After installing the dependency, make the AppImage executable:
+            ```bash
+            chmod +x SpotiFLAC.AppImage
+            ./SpotiFLAC.AppImage
+            ```
+
+            </details>
+          files: |
+            artifacts/windows-portable/*.exe
+            artifacts/macos-portable/*.dmg
+            artifacts/linux-portable/*.AppImage
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -0,0 +1,64 @@
+# Wails Build
+build/
+*.exe
+*.dll
+*.dylib
+*.so
+
+# Wails Generated Files
+frontend/wailsjs/
+
+# Go
+*.test
+*.out
+go.work
+go.work.sum
+
+# Node / Frontend
+node_modules/
+frontend/node_modules/
+frontend/dist/
+frontend/.vite/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+.pnpm-store/
+.npm
+.yarn
+*.tsbuildinfo
+
+# IDE / Editors
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+.DS_Store
+
+# OS
+Thumbs.db
+desktop.ini
+
+# Environment
+.env
+.env.local
+.env.*.local
+
+# Logs
+*.log
+logs/
+
+# Temporary files
+tmp/
+temp/
+*.tmp
+*.bak
+*.old
+
+# Test files
+test
+
+# Build notes (optional - uncomment if you don't want to commit)
+# BUILD_NOTES.md
+build.txt
@@ -1,27 +1,27 @@
 [![GitHub All Releases](https://img.shields.io/github/downloads/afkarxyz/SpotiFLAC/total?style=for-the-badge)](https://github.com/afkarxyz/SpotiFLAC/releases)

-![SpotiFLAC](https://github.com/user-attachments/assets/b4c4f403-edbd-4a71-b74b-c7d433d47d06)
+![Image](https://github.com/user-attachments/assets/a6e92fdd-2944-45c1-83e8-e23a26c827af)

 <div align="center">
-<b>SpotiFLAC</b> allows you to download Spotify tracks in true FLAC format through services like Qobuz, Tidal, Deezer & Amazon Music.
+
+Get Spotify tracks in true FLAC from Tidal, Qobuz & Amazon Music — no account required.
+
+![Windows](https://img.shields.io/badge/Windows-10%2B-0078D6?style=for-the-badge&logo=data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI1MTIiIGhlaWdodD0iNTEyIiB2aWV3Qm94PSIwIDAgMjAgMjAiPjxwYXRoIGZpbGw9IiNmZmZmZmYiIGZpbGwtcnVsZT0iZXZlbm9kZCIgZD0iTTIwIDEwLjg3M1YyMEw4LjQ3OSAxOC41MzdsLjAwMS03LjY2NEgyMFptLTEzLjEyIDBsLS4wMDEgNy40NjFMMCAxNy40NjF2LTYuNTg4aDYuODhaTTIwIDkuMjczSDguNDhsLS4wMDEtNy44MUwyMCAwdjkuMjczWk02Ljg3OSAxLjY2NmwuMDAxIDcuNjA3SDBWMi41MzlsNi44NzktLjg3M1oiLz48L3N2Zz4=)
+![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)
+
 </div>

-### [Download](https://github.com/afkarxyz/SpotiFLAC/releases/download/v4.4/SpotiFLAC.exe)
+### [Download](https://github.com/afkarxyz/SpotiFLAC/releases)

-## Screenshots
+## Screenshot

-![image](https://github.com/user-attachments/assets/180b8322-ce2d-4842-a5dd-ac4d7b7a5efa)
+![Image](https://github.com/user-attachments/assets/afe01529-bcf0-4486-8792-62af26adafee)

-![image](https://github.com/user-attachments/assets/3f84d53b-2da1-4488-986c-772b82832f2d)
+## Other project

-![image](https://github.com/user-attachments/assets/f604dc04-4ee6-4084-b314-0be7cd5d7ef9)
+### [SpotiDownloader](https://github.com/afkarxyz/SpotiDownloader) 

-![image](https://github.com/user-attachments/assets/40264f32-f2cf-4e91-b09d-fb628d9771f7)
+Get Spotify tracks in MP3 and FLAC via the spotidownloader.com API

-## Lossless Audio Check
-
-![image](https://github.com/user-attachments/assets/d63b422d-0ea3-4307-850f-96c99d7eaa9a)
-
-![image](https://github.com/user-attachments/assets/7649e6e1-d5d1-49b3-b83f-965d44651d05)
-
-#### [Download](https://github.com/afkarxyz/SpotiFLAC/releases/download/v0/FLAC-Checker.zip) FLAC Checker
+[![Ko-fi](https://ko-fi.com/img/githubbutton_sm.svg)](https://ko-fi.com/afkarxyz)
@@ -1,128 +0,0 @@
-import requests
-import time
-import os
-import re
-import base64
-import urllib3
-from urllib.parse import unquote
-from random import randrange
-
-urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
-
-def get_random_user_agent():
-    return f"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_{randrange(11, 15)}_{randrange(4, 9)}) AppleWebKit/{randrange(530, 537)}.{randrange(30, 37)} (KHTML, like Gecko) Chrome/{randrange(80, 105)}.0.{randrange(3000, 4500)}.{randrange(60, 125)} Safari/{randrange(530, 537)}.{randrange(30, 36)}"
-
-def extract_data(html, patterns):
-    for pattern in patterns:
-        if match := re.search(pattern, html):
-            return match.group(1)
-    return None
-
-def download_track(track_id, service="amazon", output_dir="."):
-    client = requests.Session()
-    client.verify = False
-    headers = {'User-Agent': get_random_user_agent()}
-    
-    try:
-        spotify_url = f"https://open.spotify.com/track/{track_id}"
-        params = {"url": spotify_url, "country": "auto", "to": service}
-        
-        response = client.get("https://lucida.to", params=params, headers=headers, timeout=30)
-        html = response.text
-        
-        token = extract_data(html, [r'token:"([^"]+)"', r'"token"\s*:\s*"([^"]+)"'])
-        url = extract_data(html, [r'"url":"([^"]+)"', r'url:"([^"]+)"'])
-        expiry = extract_data(html, [r'tokenExpiry:(\d+)', r'"tokenExpiry"\s*:\s*(\d+)'])
-        
-        if not (token and url):
-            raise Exception("Could not extract required data")
-        
-        try:
-            decoded_token = base64.b64decode(base64.b64decode(token).decode('latin1')).decode('latin1')
-        except:
-            decoded_token = token
-        
-        clean_url = url.replace('\\/', '/')
-        print(f"Fetching: {clean_url}")
-        
-        request_data = {
-            "account": {"id": "auto", "type": "country"},
-            "compat": "false", "downscale": "original", "handoff": True,
-            "metadata": True, "private": True,
-            "token": {"primary": decoded_token, "expiry": int(expiry) if expiry else None},
-            "upload": {"enabled": False, "service": "pixeldrain"},
-            "url": clean_url
-        }
-
-        response = client.post("https://lucida.to/api/load?url=/api/fetch/stream/v2", 
-                              json=request_data, headers=headers)
-        
-        if csrf_token := response.cookies.get('csrf_token'):
-            headers['X-CSRF-Token'] = csrf_token
-
-        data = response.json()
-        if not data.get("success"):
-            raise Exception(f"Request failed: {data.get('error', 'Unknown error')}")
-
-        completion_url = f"https://{data['server']}.lucida.to/api/fetch/request/{data['handoff']}"
-        print("Fetching URL...")
-        
-        while True:
-            resp = client.get(completion_url, headers=headers).json()
-            if resp["status"] == "completed":
-                print("URL found")
-                break
-            elif resp["status"] == "error":
-                raise Exception(f"Processing failed: {resp.get('message', 'Unknown error')}")
-            elif progress := resp.get("progress"):
-                percent = int((progress.get("current", 0) / progress.get("total", 100)) * 100)
-                print(f"\r{percent}%", end="")
-            time.sleep(1)
-
-        download_url = f"https://{data['server']}.lucida.to/api/fetch/request/{data['handoff']}/download"
-        response = client.get(download_url, stream=True, headers=headers)
-        
-        file_name = "track.flac"
-        if content_disp := response.headers.get('content-disposition'):
-            if match := re.search(r'filename[*]?=([^;]+)', content_disp):
-                raw_name = match.group(1).strip('"\'')
-                file_name = unquote(raw_name[7:] if raw_name.startswith("UTF-8''") else raw_name)
-                for char in '<>:"/\\|?*':
-                    file_name = file_name.replace(char, '')
-                file_name = file_name.strip()
-        
-        file_path = os.path.join(output_dir, file_name)
-        print(f"Downloading...")
-        
-        with open(file_path, 'wb') as f:
-            for chunk in response.iter_content(chunk_size=8192):
-                if chunk:
-                    f.write(chunk)
-        
-        print("Download complete")
-        print("Done")
-        return file_path
-        
-    except Exception as e:
-        print(f"Error: {str(e)}")
-        return None
-
-class LucidaDownloader:
-    def __init__(self):
-        self.progress_callback = None
-    
-    def set_progress_callback(self, callback):
-        self.progress_callback = callback
-    
-    def download(self, track_id, output_dir, is_paused_callback=None, is_stopped_callback=None):
-        try:
-            return download_track(track_id, service="amazon", output_dir=output_dir)
-        except Exception as e:
-            raise Exception(f"Amazon Music download failed: {str(e)}")
-
-if __name__ == "__main__":
-    print("=== AmazonDL - Amazon Music Downloader ===")
-    track_id = "2plbrEY59IikOBgBGLjaoe"
-    service = "amazon"
-    
-    download_track(track_id, service)
@@ -0,0 +1,861 @@
+package main
+
+import (
+	"context"
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+	"spotiflac/backend"
+	"strings"
+	"time"
+)
+
+// App struct
+type App struct {
+	ctx context.Context
+}
+
+// NewApp creates a new App application struct
+func NewApp() *App {
+	return &App{}
+}
+
+// startup is called when the app starts. The context is saved
+// so we can call the runtime methods
+func (a *App) startup(ctx context.Context) {
+	a.ctx = ctx
+}
+
+// SpotifyMetadataRequest represents the request structure for fetching Spotify metadata
+type SpotifyMetadataRequest struct {
+	URL     string  `json:"url"`
+	Batch   bool    `json:"batch"`
+	Delay   float64 `json:"delay"`
+	Timeout float64 `json:"timeout"`
+}
+
+// DownloadRequest represents the request structure for downloading tracks
+type DownloadRequest struct {
+	ISRC                 string `json:"isrc"`
+	Service              string `json:"service"`
+	Query                string `json:"query,omitempty"`
+	TrackName            string `json:"track_name,omitempty"`
+	ArtistName           string `json:"artist_name,omitempty"`
+	AlbumName            string `json:"album_name,omitempty"`
+	AlbumArtist          string `json:"album_artist,omitempty"`
+	ReleaseDate          string `json:"release_date,omitempty"`
+	CoverURL             string `json:"cover_url,omitempty"` // Spotify cover URL for embedding
+	ApiURL               string `json:"api_url,omitempty"`
+	OutputDir            string `json:"output_dir,omitempty"`
+	AudioFormat          string `json:"audio_format,omitempty"`
+	FilenameFormat       string `json:"filename_format,omitempty"`
+	TrackNumber          bool   `json:"track_number,omitempty"`
+	Position             int    `json:"position,omitempty"`                // Position in playlist/album (1-based)
+	UseAlbumTrackNumber  bool   `json:"use_album_track_number,omitempty"`  // Use album track number instead of playlist position
+	SpotifyID            string `json:"spotify_id,omitempty"`              // Spotify track ID
+	EmbedLyrics          bool   `json:"embed_lyrics,omitempty"`            // Whether to embed lyrics into the audio file
+	EmbedMaxQualityCover bool   `json:"embed_max_quality_cover,omitempty"` // Whether to embed max quality cover art
+	ServiceURL           string `json:"service_url,omitempty"`             // Direct service URL (Tidal/Deezer/Amazon) to skip song.link API call
+	Duration             int    `json:"duration,omitempty"`                // Track duration in seconds for better matching
+	ItemID               string `json:"item_id,omitempty"`                 // Optional queue item ID for multi-service fallback tracking
+	SpotifyTrackNumber   int    `json:"spotify_track_number,omitempty"`    // Track number from Spotify album
+	SpotifyDiscNumber    int    `json:"spotify_disc_number,omitempty"`     // Disc number from Spotify album
+	SpotifyTotalTracks   int    `json:"spotify_total_tracks,omitempty"`    // Total tracks in album from Spotify
+}
+
+// DownloadResponse represents the response structure for download operations
+type DownloadResponse 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"`
+	ItemID        string `json:"item_id,omitempty"` // Queue item ID for tracking
+}
+
+// GetStreamingURLs fetches all streaming URLs from song.link API
+func (a *App) GetStreamingURLs(spotifyTrackID string) (string, error) {
+	if spotifyTrackID == "" {
+		return "", fmt.Errorf("spotify track ID is required")
+	}
+
+	fmt.Printf("[GetStreamingURLs] Called for track ID: %s\n", spotifyTrackID)
+	client := backend.NewSongLinkClient()
+	urls, err := client.GetAllURLsFromSpotify(spotifyTrackID)
+	if err != nil {
+		return "", err
+	}
+
+	jsonData, err := json.Marshal(urls)
+	if err != nil {
+		return "", fmt.Errorf("failed to encode response: %v", err)
+	}
+
+	return string(jsonData), nil
+}
+
+// GetSpotifyMetadata fetches metadata from Spotify
+func (a *App) GetSpotifyMetadata(req SpotifyMetadataRequest) (string, error) {
+	if req.URL == "" {
+		return "", fmt.Errorf("URL parameter is required")
+	}
+
+	if req.Delay == 0 {
+		req.Delay = 1.0
+	}
+	if req.Timeout == 0 {
+		req.Timeout = 300.0
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), time.Duration(req.Timeout*float64(time.Second)))
+	defer cancel()
+
+	data, err := backend.GetFilteredSpotifyData(ctx, req.URL, req.Batch, time.Duration(req.Delay*float64(time.Second)))
+	if err != nil {
+		return "", fmt.Errorf("failed to fetch metadata: %v", err)
+	}
+
+	jsonData, err := json.MarshalIndent(data, "", "  ")
+	if err != nil {
+		return "", fmt.Errorf("failed to encode response: %v", err)
+	}
+
+	return string(jsonData), nil
+}
+
+// SpotifySearchRequest represents the request structure for searching Spotify
+type SpotifySearchRequest struct {
+	Query string `json:"query"`
+	Limit int    `json:"limit"`
+}
+
+// SearchSpotify searches for tracks, albums, artists, and playlists on Spotify
+func (a *App) SearchSpotify(req SpotifySearchRequest) (*backend.SearchResponse, error) {
+	if req.Query == "" {
+		return nil, fmt.Errorf("search query is required")
+	}
+
+	if req.Limit <= 0 {
+		req.Limit = 10
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	return backend.SearchSpotify(ctx, req.Query, req.Limit)
+}
+
+// SpotifySearchByTypeRequest represents the request for searching by specific type with offset
+type SpotifySearchByTypeRequest struct {
+	Query      string `json:"query"`
+	SearchType string `json:"search_type"` // track, album, artist, playlist
+	Limit      int    `json:"limit"`
+	Offset     int    `json:"offset"`
+}
+
+// SearchSpotifyByType searches for a specific type with offset support for pagination
+func (a *App) SearchSpotifyByType(req SpotifySearchByTypeRequest) ([]backend.SearchResult, error) {
+	if req.Query == "" {
+		return nil, fmt.Errorf("search query is required")
+	}
+
+	if req.SearchType == "" {
+		return nil, fmt.Errorf("search type is required")
+	}
+
+	if req.Limit <= 0 {
+		req.Limit = 50
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	return backend.SearchSpotifyByType(ctx, req.Query, req.SearchType, req.Limit, req.Offset)
+}
+
+// DownloadTrack downloads a track by ISRC
+func (a *App) DownloadTrack(req DownloadRequest) (DownloadResponse, error) {
+	if req.ISRC == "" {
+		return DownloadResponse{
+			Success: false,
+			Error:   "ISRC is required",
+		}, fmt.Errorf("ISRC is required")
+	}
+
+	if req.Service == "" {
+		req.Service = "tidal"
+	}
+
+	if req.OutputDir == "" {
+		req.OutputDir = "."
+	} else {
+		// Only normalize path separators, don't sanitize user's existing folder names
+		req.OutputDir = backend.NormalizePath(req.OutputDir)
+	}
+
+	if req.AudioFormat == "" {
+		req.AudioFormat = "LOSSLESS"
+	}
+
+	var err error
+	var filename string
+
+	// Set default filename format if not provided
+	if req.FilenameFormat == "" {
+		req.FilenameFormat = "title-artist"
+	}
+
+	// ItemID should always be provided by frontend (created via AddToDownloadQueue)
+	// If not provided, generate one for backwards compatibility
+	itemID := req.ItemID
+	if itemID == "" {
+		itemID = fmt.Sprintf("%s-%d", req.ISRC, time.Now().UnixNano())
+		// Add to queue if no ItemID was provided (legacy support)
+		backend.AddToQueue(itemID, req.TrackName, req.ArtistName, req.AlbumName, req.ISRC)
+	}
+
+	// Mark item as downloading immediately
+	backend.SetDownloading(true)
+	backend.StartDownloadItem(itemID)
+	defer backend.SetDownloading(false)
+
+	// Early check: Check if file with same ISRC already exists
+	if existingFile, exists := backend.CheckISRCExists(req.OutputDir, req.ISRC); exists {
+		fmt.Printf("File with ISRC %s already exists: %s\n", req.ISRC, existingFile)
+		backend.SkipDownloadItem(itemID, existingFile)
+		return DownloadResponse{
+			Success:       true,
+			Message:       "File with same ISRC already exists",
+			File:          existingFile,
+			AlreadyExists: true,
+			ItemID:        itemID,
+		}, nil
+	}
+
+	// Fallback: if we have track metadata, check if file already exists by filename
+	if req.TrackName != "" && req.ArtistName != "" {
+		expectedFilename := backend.BuildExpectedFilename(req.TrackName, req.ArtistName, req.AlbumName, req.AlbumArtist, req.ReleaseDate, req.FilenameFormat, req.TrackNumber, req.Position, req.SpotifyDiscNumber, req.UseAlbumTrackNumber)
+		expectedPath := filepath.Join(req.OutputDir, expectedFilename)
+
+		if fileInfo, err := os.Stat(expectedPath); err == nil && fileInfo.Size() > 100*1024 {
+			// Validate the file by checking if it has valid ISRC metadata
+			if fileISRC, readErr := backend.ReadISRCFromFile(expectedPath); readErr == nil && fileISRC != "" {
+				// File exists and has valid metadata - skip download
+				backend.SkipDownloadItem(itemID, expectedPath)
+				return DownloadResponse{
+					Success:       true,
+					Message:       "File already exists",
+					File:          expectedPath,
+					AlreadyExists: true,
+					ItemID:        itemID,
+				}, nil
+			} else {
+				// File exists but has no valid ISRC metadata - it's corrupted, delete it
+				fmt.Printf("Removing corrupted file (no valid ISRC metadata): %s\n", expectedPath)
+				if removeErr := os.Remove(expectedPath); removeErr != nil {
+					fmt.Printf("Warning: Failed to remove corrupted file %s: %v\n", expectedPath, removeErr)
+				}
+			}
+		}
+	}
+
+	switch req.Service {
+	case "amazon":
+		downloader := backend.NewAmazonDownloader()
+		if req.ServiceURL != "" {
+			// Use provided URL directly
+			filename, err = downloader.DownloadByURL(req.ServiceURL, req.OutputDir, req.FilenameFormat, req.TrackNumber, req.Position, req.TrackName, req.ArtistName, req.AlbumName, req.AlbumArtist, req.ReleaseDate, req.CoverURL, req.ISRC, req.SpotifyTrackNumber, req.SpotifyDiscNumber, req.SpotifyTotalTracks, req.EmbedMaxQualityCover)
+		} else {
+			if req.SpotifyID == "" {
+				return DownloadResponse{
+					Success: false,
+					Error:   "Spotify ID is required for Amazon Music",
+				}, fmt.Errorf("spotify ID is required for Amazon Music")
+			}
+			filename, err = downloader.DownloadBySpotifyID(req.SpotifyID, req.OutputDir, req.FilenameFormat, req.TrackNumber, req.Position, req.TrackName, req.ArtistName, req.AlbumName, req.AlbumArtist, req.ReleaseDate, req.CoverURL, req.ISRC, req.SpotifyTrackNumber, req.SpotifyDiscNumber, req.SpotifyTotalTracks, req.EmbedMaxQualityCover)
+		}
+
+	case "tidal":
+		if req.ApiURL == "" || req.ApiURL == "auto" {
+			downloader := backend.NewTidalDownloader("")
+			if req.ServiceURL != "" {
+				// Use provided URL directly with fallback to multiple APIs
+				filename, err = downloader.DownloadByURLWithFallback(req.ServiceURL, req.OutputDir, req.AudioFormat, req.FilenameFormat, req.TrackNumber, req.Position, req.TrackName, req.ArtistName, req.AlbumName, req.AlbumArtist, req.ReleaseDate, req.UseAlbumTrackNumber, req.CoverURL, req.EmbedMaxQualityCover, req.SpotifyTrackNumber, req.SpotifyDiscNumber, req.SpotifyTotalTracks, req.ISRC)
+			} else {
+				if req.SpotifyID == "" {
+					return DownloadResponse{
+						Success: false,
+						Error:   "Spotify ID is required for Tidal",
+					}, fmt.Errorf("spotify ID is required for Tidal")
+				}
+				// Use ISRC matching for search fallback
+				filename, err = downloader.DownloadWithFallbackAndISRC(req.SpotifyID, req.ISRC, req.OutputDir, req.AudioFormat, req.FilenameFormat, req.TrackNumber, req.Position, req.TrackName, req.ArtistName, req.AlbumName, req.AlbumArtist, req.ReleaseDate, req.UseAlbumTrackNumber, req.Duration, req.CoverURL, req.EmbedMaxQualityCover, req.SpotifyTrackNumber, req.SpotifyDiscNumber, req.SpotifyTotalTracks)
+			}
+		} else {
+			downloader := backend.NewTidalDownloader(req.ApiURL)
+			if req.ServiceURL != "" {
+				// Use provided URL directly with specific API
+				filename, err = downloader.DownloadByURL(req.ServiceURL, req.OutputDir, req.AudioFormat, req.FilenameFormat, req.TrackNumber, req.Position, req.TrackName, req.ArtistName, req.AlbumName, req.AlbumArtist, req.ReleaseDate, req.UseAlbumTrackNumber, req.CoverURL, req.EmbedMaxQualityCover, req.SpotifyTrackNumber, req.SpotifyDiscNumber, req.SpotifyTotalTracks, req.ISRC)
+			} else {
+				if req.SpotifyID == "" {
+					return DownloadResponse{
+						Success: false,
+						Error:   "Spotify ID is required for Tidal",
+					}, fmt.Errorf("spotify ID is required for Tidal")
+				}
+				// Use ISRC matching for search fallback
+				filename, err = downloader.DownloadWithISRC(req.SpotifyID, req.ISRC, req.OutputDir, req.AudioFormat, req.FilenameFormat, req.TrackNumber, req.Position, req.TrackName, req.ArtistName, req.AlbumName, req.AlbumArtist, req.ReleaseDate, req.UseAlbumTrackNumber, req.Duration, req.CoverURL, req.EmbedMaxQualityCover, req.SpotifyTrackNumber, req.SpotifyDiscNumber, req.SpotifyTotalTracks)
+			}
+		}
+
+	case "qobuz":
+		downloader := backend.NewQobuzDownloader()
+		// Default to "6" (FLAC 16-bit) for Qobuz if not specified
+		quality := req.AudioFormat
+		if quality == "" {
+			quality = "6"
+		}
+		filename, err = downloader.DownloadByISRC(req.ISRC, req.OutputDir, quality, req.FilenameFormat, req.TrackNumber, req.Position, req.TrackName, req.ArtistName, req.AlbumName, req.AlbumArtist, req.ReleaseDate, req.UseAlbumTrackNumber, req.CoverURL, req.EmbedMaxQualityCover, req.SpotifyTrackNumber, req.SpotifyDiscNumber, req.SpotifyTotalTracks)
+
+	default:
+		return DownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("Unknown service: %s", req.Service),
+		}, fmt.Errorf("unknown service: %s", req.Service)
+	}
+
+	if err != nil {
+		// Clean up any partial/corrupted file that was created during failed download
+		if filename != "" && !strings.HasPrefix(filename, "EXISTS:") {
+			// Check if file exists and delete it
+			if _, statErr := os.Stat(filename); statErr == nil {
+				fmt.Printf("Removing corrupted/partial file after failed download: %s\n", filename)
+				if removeErr := os.Remove(filename); removeErr != nil {
+					fmt.Printf("Warning: Failed to remove corrupted file %s: %v\n", filename, removeErr)
+				}
+			}
+		}
+
+		// Don't mark as failed in backend - let the frontend handle it
+		// Frontend will call MarkDownloadItemFailed after all services are tried
+		return DownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("Download failed: %v", err),
+			ItemID:  itemID,
+		}, err
+	}
+
+	// Check if file already existed
+	alreadyExists := false
+	if strings.HasPrefix(filename, "EXISTS:") {
+		alreadyExists = true
+		filename = strings.TrimPrefix(filename, "EXISTS:")
+	}
+
+	// Embed lyrics after successful download (only for new downloads with Spotify ID and if embedLyrics is enabled)
+	if !alreadyExists && req.SpotifyID != "" && req.EmbedLyrics && strings.HasSuffix(filename, ".flac") {
+		go func(filePath, spotifyID, trackName, artistName string) {
+			fmt.Printf("\n========== LYRICS FETCH START ==========\n")
+			fmt.Printf("Spotify ID: %s\n", spotifyID)
+			fmt.Printf("Track: %s\n", trackName)
+			fmt.Printf("Artist: %s\n", artistName)
+			fmt.Println("Searching all sources...")
+
+			lyricsClient := backend.NewLyricsClient()
+
+			// Try all sources with fallbacks
+			lyricsResp, source, err := lyricsClient.FetchLyricsAllSources(spotifyID, trackName, artistName)
+			if err != nil {
+				fmt.Printf("All sources failed: %v\n", err)
+				fmt.Printf("========== LYRICS FETCH END (FAILED) ==========\n\n")
+				return
+			}
+
+			if lyricsResp == nil || len(lyricsResp.Lines) == 0 {
+				fmt.Println("No lyrics content found")
+				fmt.Printf("========== LYRICS FETCH END (FAILED) ==========\n\n")
+				return
+			}
+
+			fmt.Printf("Lyrics found from: %s\n", source)
+			fmt.Printf("Sync type: %s\n", lyricsResp.SyncType)
+			fmt.Printf("Total lines: %d\n", len(lyricsResp.Lines))
+
+			lyrics := lyricsClient.ConvertToLRC(lyricsResp, trackName, artistName)
+			if lyrics == "" {
+				fmt.Println("No lyrics content to embed")
+				fmt.Printf("========== LYRICS FETCH END (FAILED) ==========\n\n")
+				return
+			}
+
+			// Show full lyrics in console for debugging
+			fmt.Printf("\n--- Full LRC Content ---\n")
+			fmt.Println(lyrics)
+			fmt.Printf("--- End LRC Content ---\n\n")
+
+			fmt.Printf("Embedding into: %s\n", filePath)
+			if err := backend.EmbedLyricsOnly(filePath, lyrics); err != nil {
+				fmt.Printf("Failed to embed lyrics: %v\n", err)
+				fmt.Printf("========== LYRICS FETCH END (FAILED) ==========\n\n")
+			} else {
+				fmt.Printf("Lyrics embedded successfully!\n")
+				fmt.Printf("========== LYRICS FETCH END (SUCCESS) ==========\n\n")
+			}
+		}(filename, req.SpotifyID, req.TrackName, req.ArtistName)
+	}
+
+	message := "Download completed successfully"
+	if alreadyExists {
+		message = "File already exists"
+		backend.SkipDownloadItem(itemID, filename)
+	} else {
+		// Get file size for completed download
+		if fileInfo, statErr := os.Stat(filename); statErr == nil {
+			finalSize := float64(fileInfo.Size()) / (1024 * 1024) // Convert to MB
+			backend.CompleteDownloadItem(itemID, filename, finalSize)
+		} else {
+			// Fallback: mark as completed without size
+			backend.CompleteDownloadItem(itemID, filename, 0)
+		}
+	}
+
+	return DownloadResponse{
+		Success:       true,
+		Message:       message,
+		File:          filename,
+		AlreadyExists: alreadyExists,
+		ItemID:        itemID,
+	}, nil
+}
+
+// OpenFolder opens a folder in the file explorer
+func (a *App) OpenFolder(path string) error {
+	if path == "" {
+		return fmt.Errorf("path is required")
+	}
+
+	err := backend.OpenFolderInExplorer(path)
+	if err != nil {
+		return fmt.Errorf("failed to open folder: %v", err)
+	}
+
+	return nil
+}
+
+// SelectFolder opens a folder selection dialog and returns the selected path
+func (a *App) SelectFolder(defaultPath string) (string, error) {
+	return backend.SelectFolderDialog(a.ctx, defaultPath)
+}
+
+// SelectFile opens a file selection dialog and returns the selected file path
+func (a *App) SelectFile() (string, error) {
+	return backend.SelectFileDialog(a.ctx)
+}
+
+// GetDefaults returns the default configuration
+func (a *App) GetDefaults() map[string]string {
+	return map[string]string{
+		"downloadPath": backend.GetDefaultMusicPath(),
+	}
+}
+
+// GetDownloadProgress returns current download progress
+func (a *App) GetDownloadProgress() backend.ProgressInfo {
+	return backend.GetDownloadProgress()
+}
+
+// GetDownloadQueue returns the complete download queue state
+func (a *App) GetDownloadQueue() backend.DownloadQueueInfo {
+	return backend.GetDownloadQueue()
+}
+
+// ClearCompletedDownloads clears completed, failed, and skipped items from the queue
+func (a *App) ClearCompletedDownloads() {
+	backend.ClearDownloadQueue()
+}
+
+// ClearAllDownloads clears the entire queue and resets session stats
+func (a *App) ClearAllDownloads() {
+	backend.ClearAllDownloads()
+}
+
+// AddToDownloadQueue adds a new item to the download queue and returns its ID
+func (a *App) AddToDownloadQueue(isrc, trackName, artistName, albumName string) string {
+	itemID := fmt.Sprintf("%s-%d", isrc, time.Now().UnixNano())
+	backend.AddToQueue(itemID, trackName, artistName, albumName, isrc)
+	return itemID
+}
+
+// MarkDownloadItemFailed marks a download item as failed
+func (a *App) MarkDownloadItemFailed(itemID, errorMsg string) {
+	backend.FailDownloadItem(itemID, errorMsg)
+}
+
+// CancelAllQueuedItems marks all queued items as cancelled/skipped
+func (a *App) CancelAllQueuedItems() {
+	backend.CancelAllQueuedItems()
+}
+
+// Quit closes the application
+func (a *App) Quit() {
+	// You can add cleanup logic here if needed
+	panic("quit") // This will trigger Wails to close the app
+}
+
+// AnalyzeTrack analyzes audio quality of a FLAC file
+func (a *App) AnalyzeTrack(filePath string) (string, error) {
+	if filePath == "" {
+		return "", fmt.Errorf("file path is required")
+	}
+
+	result, err := backend.AnalyzeTrack(filePath)
+	if err != nil {
+		return "", fmt.Errorf("failed to analyze track: %v", err)
+	}
+
+	jsonData, err := json.Marshal(result)
+	if err != nil {
+		return "", fmt.Errorf("failed to encode response: %v", err)
+	}
+
+	return string(jsonData), nil
+}
+
+// AnalyzeMultipleTracks analyzes multiple FLAC files
+func (a *App) AnalyzeMultipleTracks(filePaths []string) (string, error) {
+	if len(filePaths) == 0 {
+		return "", fmt.Errorf("at least one file path is required")
+	}
+
+	results := make([]*backend.AnalysisResult, 0, len(filePaths))
+
+	for _, filePath := range filePaths {
+		result, err := backend.AnalyzeTrack(filePath)
+		if err != nil {
+			// Skip failed analyses
+			continue
+		}
+		results = append(results, result)
+	}
+
+	jsonData, err := json.Marshal(results)
+	if err != nil {
+		return "", fmt.Errorf("failed to encode response: %v", err)
+	}
+
+	return string(jsonData), nil
+}
+
+// LyricsDownloadRequest represents the request structure for downloading lyrics
+type LyricsDownloadRequest struct {
+	SpotifyID           string `json:"spotify_id"`
+	TrackName           string `json:"track_name"`
+	ArtistName          string `json:"artist_name"`
+	AlbumName           string `json:"album_name"`
+	AlbumArtist         string `json:"album_artist"`
+	ReleaseDate         string `json:"release_date"`
+	OutputDir           string `json:"output_dir"`
+	FilenameFormat      string `json:"filename_format"`
+	TrackNumber         bool   `json:"track_number"`
+	Position            int    `json:"position"`
+	UseAlbumTrackNumber bool   `json:"use_album_track_number"`
+	DiscNumber          int    `json:"disc_number"`
+}
+
+// DownloadLyrics downloads lyrics for a single track
+func (a *App) DownloadLyrics(req LyricsDownloadRequest) (backend.LyricsDownloadResponse, error) {
+	if req.SpotifyID == "" {
+		return backend.LyricsDownloadResponse{
+			Success: false,
+			Error:   "Spotify ID is required",
+		}, fmt.Errorf("spotify ID is required")
+	}
+
+	client := backend.NewLyricsClient()
+	backendReq := backend.LyricsDownloadRequest{
+		SpotifyID:           req.SpotifyID,
+		TrackName:           req.TrackName,
+		ArtistName:          req.ArtistName,
+		AlbumName:           req.AlbumName,
+		AlbumArtist:         req.AlbumArtist,
+		ReleaseDate:         req.ReleaseDate,
+		OutputDir:           req.OutputDir,
+		FilenameFormat:      req.FilenameFormat,
+		TrackNumber:         req.TrackNumber,
+		Position:            req.Position,
+		UseAlbumTrackNumber: req.UseAlbumTrackNumber,
+		DiscNumber:          req.DiscNumber,
+	}
+
+	resp, err := client.DownloadLyrics(backendReq)
+	if err != nil {
+		return backend.LyricsDownloadResponse{
+			Success: false,
+			Error:   err.Error(),
+		}, err
+	}
+
+	return *resp, nil
+}
+
+// CoverDownloadRequest represents the request structure for downloading cover art
+type CoverDownloadRequest struct {
+	CoverURL       string `json:"cover_url"`
+	TrackName      string `json:"track_name"`
+	ArtistName     string `json:"artist_name"`
+	AlbumName      string `json:"album_name"`
+	AlbumArtist    string `json:"album_artist"`
+	ReleaseDate    string `json:"release_date"`
+	OutputDir      string `json:"output_dir"`
+	FilenameFormat string `json:"filename_format"`
+	TrackNumber    bool   `json:"track_number"`
+	Position       int    `json:"position"`
+	DiscNumber     int    `json:"disc_number"`
+}
+
+// DownloadCover downloads cover art for a single track
+func (a *App) DownloadCover(req CoverDownloadRequest) (backend.CoverDownloadResponse, error) {
+	if req.CoverURL == "" {
+		return backend.CoverDownloadResponse{
+			Success: false,
+			Error:   "Cover URL is required",
+		}, fmt.Errorf("cover URL is required")
+	}
+
+	client := backend.NewCoverClient()
+	backendReq := backend.CoverDownloadRequest{
+		CoverURL:       req.CoverURL,
+		TrackName:      req.TrackName,
+		ArtistName:     req.ArtistName,
+		AlbumName:      req.AlbumName,
+		AlbumArtist:    req.AlbumArtist,
+		ReleaseDate:    req.ReleaseDate,
+		OutputDir:      req.OutputDir,
+		FilenameFormat: req.FilenameFormat,
+		TrackNumber:    req.TrackNumber,
+		Position:       req.Position,
+		DiscNumber:     req.DiscNumber,
+	}
+
+	resp, err := client.DownloadCover(backendReq)
+	if err != nil {
+		return backend.CoverDownloadResponse{
+			Success: false,
+			Error:   err.Error(),
+		}, err
+	}
+
+	return *resp, nil
+}
+
+// CheckTrackAvailability checks the availability of a track on different streaming platforms
+func (a *App) CheckTrackAvailability(spotifyTrackID string, isrc string) (string, error) {
+	if spotifyTrackID == "" {
+		return "", fmt.Errorf("spotify track ID is required")
+	}
+
+	client := backend.NewSongLinkClient()
+	availability, err := client.CheckTrackAvailability(spotifyTrackID, isrc)
+	if err != nil {
+		return "", err
+	}
+
+	jsonData, err := json.Marshal(availability)
+	if err != nil {
+		return "", fmt.Errorf("failed to encode response: %v", err)
+	}
+
+	return string(jsonData), nil
+}
+
+// IsFFmpegInstalled checks if ffmpeg is installed
+func (a *App) IsFFmpegInstalled() (bool, error) {
+	return backend.IsFFmpegInstalled()
+}
+
+// IsFFprobeInstalled checks if ffprobe is installed
+func (a *App) IsFFprobeInstalled() (bool, error) {
+	return backend.IsFFprobeInstalled()
+}
+
+// GetFFmpegPath returns the path to ffmpeg
+func (a *App) GetFFmpegPath() (string, error) {
+	return backend.GetFFmpegPath()
+}
+
+// DownloadFFmpegRequest represents a request to download ffmpeg
+type DownloadFFmpegRequest struct{}
+
+// DownloadFFmpegResponse represents the response from downloading ffmpeg
+type DownloadFFmpegResponse struct {
+	Success bool   `json:"success"`
+	Message string `json:"message"`
+	Error   string `json:"error,omitempty"`
+}
+
+// DownloadFFmpeg downloads and installs ffmpeg
+func (a *App) DownloadFFmpeg() DownloadFFmpegResponse {
+	err := backend.DownloadFFmpeg(func(progress int) {
+		fmt.Printf("[FFmpeg] Download progress: %d%%\n", progress)
+	})
+	if err != nil {
+		return DownloadFFmpegResponse{
+			Success: false,
+			Error:   err.Error(),
+		}
+	}
+
+	return DownloadFFmpegResponse{
+		Success: true,
+		Message: "FFmpeg installed successfully",
+	}
+}
+
+// ConvertAudioRequest represents a request to convert audio files
+type ConvertAudioRequest struct {
+	InputFiles   []string `json:"input_files"`
+	OutputFormat string   `json:"output_format"`
+	Bitrate      string   `json:"bitrate"`
+	Codec        string   `json:"codec"` // For m4a: "aac" (lossy) or "alac" (lossless)
+}
+
+// ConvertAudio converts audio files using ffmpeg
+func (a *App) ConvertAudio(req ConvertAudioRequest) ([]backend.ConvertAudioResult, error) {
+	backendReq := backend.ConvertAudioRequest{
+		InputFiles:   req.InputFiles,
+		OutputFormat: req.OutputFormat,
+		Bitrate:      req.Bitrate,
+		Codec:        req.Codec,
+	}
+	return backend.ConvertAudio(backendReq)
+}
+
+// SelectAudioFiles opens a file dialog to select audio files for conversion
+func (a *App) SelectAudioFiles() ([]string, error) {
+	files, err := backend.SelectMultipleFiles(a.ctx)
+	if err != nil {
+		return nil, err
+	}
+	return files, nil
+}
+
+// GetFileSizes returns file sizes for a list of file paths
+func (a *App) GetFileSizes(files []string) map[string]int64 {
+	return backend.GetFileSizes(files)
+}
+
+// ListDirectoryFiles lists files and folders in a directory
+func (a *App) ListDirectoryFiles(dirPath string) ([]backend.FileInfo, error) {
+	if dirPath == "" {
+		return nil, fmt.Errorf("directory path is required")
+	}
+	return backend.ListDirectory(dirPath)
+}
+
+// ListAudioFilesInDir lists only audio files in a directory recursively
+func (a *App) ListAudioFilesInDir(dirPath string) ([]backend.FileInfo, error) {
+	if dirPath == "" {
+		return nil, fmt.Errorf("directory path is required")
+	}
+	return backend.ListAudioFiles(dirPath)
+}
+
+// ReadFileMetadata reads metadata from an audio file
+func (a *App) ReadFileMetadata(filePath string) (*backend.AudioMetadata, error) {
+	if filePath == "" {
+		return nil, fmt.Errorf("file path is required")
+	}
+	return backend.ReadAudioMetadata(filePath)
+}
+
+// PreviewRenameFiles generates a preview of rename operations
+func (a *App) PreviewRenameFiles(files []string, format string) []backend.RenamePreview {
+	return backend.PreviewRename(files, format)
+}
+
+// RenameFilesByMetadata renames files based on their metadata
+func (a *App) RenameFilesByMetadata(files []string, format string) []backend.RenameResult {
+	return backend.RenameFiles(files, format)
+}
+
+// ReadTextFile reads a text file and returns its content
+func (a *App) ReadTextFile(filePath string) (string, error) {
+	content, err := os.ReadFile(filePath)
+	if err != nil {
+		return "", err
+	}
+	return string(content), nil
+}
+
+// RenameFileTo renames a file to a new name (keeping same directory)
+func (a *App) RenameFileTo(oldPath, newName string) error {
+	dir := filepath.Dir(oldPath)
+	ext := filepath.Ext(oldPath)
+	newPath := filepath.Join(dir, newName+ext)
+	return os.Rename(oldPath, newPath)
+}
+
+// ReadImageAsBase64 reads an image file and returns it as base64 data URL
+func (a *App) ReadImageAsBase64(filePath string) (string, error) {
+	content, err := os.ReadFile(filePath)
+	if err != nil {
+		return "", err
+	}
+	
+	ext := strings.ToLower(filepath.Ext(filePath))
+	var mimeType string
+	switch ext {
+	case ".jpg", ".jpeg":
+		mimeType = "image/jpeg"
+	case ".png":
+		mimeType = "image/png"
+	case ".gif":
+		mimeType = "image/gif"
+	case ".webp":
+		mimeType = "image/webp"
+	default:
+		mimeType = "image/jpeg"
+	}
+	
+	encoded := base64.StdEncoding.EncodeToString(content)
+	return fmt.Sprintf("data:%s;base64,%s", mimeType, encoded), nil
+}
+
+// CheckFileExistenceRequest represents a track to check for existence
+type CheckFileExistenceRequest struct {
+	ISRC       string `json:"isrc"`
+	TrackName  string `json:"track_name"`
+	ArtistName string `json:"artist_name"`
+}
+
+// CheckFilesExistence checks if multiple files already exist in the output directory
+// This is done in parallel for better performance
+func (a *App) CheckFilesExistence(outputDir string, tracks []CheckFileExistenceRequest) []backend.FileExistenceResult {
+	// Convert to backend struct format
+	backendTracks := make([]struct {
+		ISRC       string
+		TrackName  string
+		ArtistName string
+	}, len(tracks))
+
+	for i, t := range tracks {
+		backendTracks[i] = struct {
+			ISRC       string
+			TrackName  string
+			ArtistName string
+		}{
+			ISRC:       t.ISRC,
+			TrackName:  t.TrackName,
+			ArtistName: t.ArtistName,
+		}
+	}
+
+	return backend.CheckFilesExistParallel(outputDir, backendTracks)
+}
+
+// SkipDownloadItem marks a download item as skipped (file already exists)
+func (a *App) SkipDownloadItem(itemID, filePath string) {
+	backend.SkipDownloadItem(itemID, filePath)
+}
@@ -1,8 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" id="flag-icons-au" viewBox="0 0 640 480">
-  <path fill="#00008B" d="M0 0h640v480H0z"/>
-  <path fill="#fff" d="m37.5 0 122 90.5L281 0h39v31l-120 89.5 120 89V240h-40l-120-89.5L40.5 240H0v-30l119.5-89L0 32V0z"/>
-  <path fill="red" d="M212 140.5 320 220v20l-135.5-99.5zm-92 10 3 17.5-96 72H0zM320 0v1.5l-124.5 94 1-22L295 0zM0 0l119.5 88h-30L0 21z"/>
-  <path fill="#fff" d="M120.5 0v240h80V0zM0 80v80h320V80z"/>
-  <path fill="red" d="M0 96.5v48h320v-48zM136.5 0v240h48V0z"/>
-  <path fill="#fff" d="m527 396.7-20.5 2.6 2.2 20.5-14.8-14.4-14.7 14.5 2-20.5-20.5-2.4 17.3-11.2-10.9-17.5 19.6 6.5 6.9-19.5 7.1 19.4 19.5-6.7-10.7 17.6zm-3.7-117.2 2.7-13-9.8-9 13.2-1.5 5.5-12.1 5.5 12.1 13.2 1.5-9.8 9 2.7 13-11.6-6.6zm-104.1-60-20.3 2.2 1.8 20.3-14.4-14.5-14.8 14.1 2.4-20.3-20.2-2.7 17.3-10.8-10.5-17.5 19.3 6.8L387 178l6.7 19.3 19.4-6.3-10.9 17.3 17.1 11.2ZM623 186.7l-20.9 2.7 2.3 20.9-15.1-14.7-15 14.8 2.1-21-20.9-2.4 17.7-11.5-11.1-17.9 20 6.7 7-19.8 7.2 19.8 19.9-6.9-11 18zm-96.1-83.5-20.7 2.3 1.9 20.8-14.7-14.8-15.1 14.4 2.4-20.7-20.7-2.8 17.7-11L467 73.5l19.7 6.9 7.3-19.5 6.8 19.7 19.8-6.5-11.1 17.6zM234 385.7l-45.8 5.4 4.6 45.9-32.8-32.4-33 32.2 4.9-45.9-45.8-5.8 38.9-24.8-24-39.4 43.6 15 15.8-43.4 15.5 43.5 43.7-14.7-24.3 39.2 38.8 25.1Z"/>
-</svg>
@@ -0,0 +1,532 @@
+package backend
+
+import (
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"io"
+	"math/rand"
+	"net/http"
+	"net/url"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+	"time"
+)
+
+type AmazonDownloader struct {
+	client           *http.Client
+	regions          []string
+	lastAPICallTime  time.Time
+	apiCallCount     int
+	apiCallResetTime time.Time
+}
+
+type SongLinkResponse struct {
+	LinksByPlatform map[string]struct {
+		URL string `json:"url"`
+	} `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"`
+}
+
+func NewAmazonDownloader() *AmazonDownloader {
+	return &AmazonDownloader{
+		client: &http.Client{
+			Timeout: 120 * time.Second,
+		},
+		regions:          []string{"us", "eu"},
+		apiCallResetTime: time.Now(),
+	}
+}
+
+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()
+		}
+	}
+
+	// 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))
+
+	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())
+
+	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
+	}
+	defer resp.Body.Close()
+
+	// Read body first to handle encoding issues and provide better error messages
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", fmt.Errorf("failed to read response body: %w", err)
+	}
+
+	if len(body) == 0 {
+		return "", fmt.Errorf("API returned empty response")
+	}
+
+	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] + "..."
+		}
+		return "", fmt.Errorf("failed to decode response: %w (response: %s)", err, bodyStr)
+	}
+
+	amazonLink, ok := songLinkResp.LinksByPlatform["amazonMusic"]
+	if !ok || amazonLink.URL == "" {
+		return "", fmt.Errorf("amazon Music link not found")
+	}
+
+	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 {
+			trackAsin := strings.Split(parts[1], "&")[0]
+			musicBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9tdXNpYy5hbWF6b24uY29tL3RyYWNrcy8=")
+			amazonURL = fmt.Sprintf("%s%s?musicTerritory=US", string(musicBase), trackAsin)
+		}
+	}
+
+	fmt.Printf("Found Amazon URL: %s\n", amazonURL)
+	return amazonURL, nil
+}
+
+func (a *AmazonDownloader) DownloadFromService(amazonURL, outputDir string) (string, error) {
+	var lastError 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)
+		}
+	}
+
+	return "", fmt.Errorf("all regions failed. Last error: %v", lastError)
+}
+
+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
+	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)
+		expectedPath := filepath.Join(outputDir, expectedFilename)
+
+		if fileInfo, err := os.Stat(expectedPath); err == nil && fileInfo.Size() > 0 {
+			fmt.Printf("File already exists: %s (%.2f MB)\n", expectedPath, float64(fileInfo.Size())/(1024*1024))
+			return "EXISTS:" + expectedPath, nil
+		}
+	}
+
+	fmt.Printf("Using Amazon URL: %s\n", amazonURL)
+
+	// Download from service
+	filePath, err := a.DownloadFromService(amazonURL, outputDir)
+	if err != nil {
+		return "", err
+	}
+
+	// Rename file based on Spotify metadata
+	if spotifyTrackName != "" && spotifyArtistName != "" {
+		safeArtist := sanitizeFilename(spotifyArtistName)
+		safeTitle := sanitizeFilename(spotifyTrackName)
+		safeAlbum := sanitizeFilename(spotifyAlbumName)
+		safeAlbumArtist := sanitizeFilename(spotifyAlbumArtist)
+
+		// Extract year from release date
+		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)
+			newFilename = strings.ReplaceAll(newFilename, "{artist}", safeArtist)
+			newFilename = strings.ReplaceAll(newFilename, "{album}", safeAlbum)
+			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"
+				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"
+		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 {
+			filePath = newFilePath
+			fmt.Printf("Renamed to: %s\n", newFilename)
+		}
+	}
+
+	// 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()
+		if err := coverClient.DownloadCoverToPath(spotifyCoverURL, coverPath, embedMaxQualityCover); err != nil {
+			fmt.Printf("Warning: Failed to download Spotify cover: %v\n", err)
+			coverPath = ""
+		} else {
+			defer os.Remove(coverPath)
+			fmt.Println("Spotify cover downloaded")
+		}
+	}
+
+	// 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
+	}
+
+	// Build metadata from Spotify
+	metadata := Metadata{
+		Title:       spotifyTrackName,
+		Artist:      spotifyArtistName,
+		Album:       spotifyAlbumName,
+		AlbumArtist: spotifyAlbumArtist,
+		Date:        spotifyReleaseDate, // Recorded date (full date YYYY-MM-DD)
+		TrackNumber: trackNumberToEmbed,
+		TotalTracks: spotifyTotalTracks, // Total tracks in album from Spotify
+		DiscNumber:  spotifyDiscNumber,  // Disc number from Spotify
+		ISRC:        spotifyISRC,        // Use ISRC from Spotify
+		Description: "https://github.com/afkarxyz/SpotiFLAC",
+	}
+
+	if err := EmbedMetadata(filePath, metadata, coverPath); err != nil {
+		fmt.Printf("Warning: Failed to embed metadata: %v\n", err)
+	} else {
+		fmt.Println("Metadata embedded successfully")
+	}
+
+	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
+	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)
+}
@@ -0,0 +1,189 @@
+package backend
+
+import (
+	"fmt"
+	"math"
+	"os"
+
+	"github.com/go-flac/go-flac"
+	mewflac "github.com/mewkiz/flac"
+)
+
+// AnalysisResult contains the audio analysis data
+type AnalysisResult struct {
+	FilePath      string        `json:"file_path"`
+	FileSize      int64         `json:"file_size"`
+	SampleRate    uint32        `json:"sample_rate"`
+	Channels      uint8         `json:"channels"`
+	BitsPerSample uint8         `json:"bits_per_sample"`
+	TotalSamples  uint64        `json:"total_samples"`
+	Duration      float64       `json:"duration"`
+	BitDepth      string        `json:"bit_depth"`
+	DynamicRange  float64       `json:"dynamic_range"`
+	PeakAmplitude float64       `json:"peak_amplitude"`
+	RMSLevel      float64       `json:"rms_level"`
+	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)
+	}
+
+	result := &AnalysisResult{
+		FilePath: filepath,
+		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
+
+	for _, sample := range samples {
+		absVal := sample
+		if absVal < 0 {
+			absVal = -absVal
+		}
+		if absVal > peak {
+			peak = absVal
+		}
+		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 {
+		return nil, err
+	}
+	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 {
+				return samples, nil
+			}
+			normalized := float64(sample) / maxVal
+			samples = append(samples, normalized)
+		}
+
+		if len(samples) >= maxSamples {
+			break
+		}
+	}
+
+	return samples, nil
+}
+
+func GetFileSize(filepath string) (int64, error) {
+	info, err := os.Stat(filepath)
+	if err != nil {
+		return 0, err
+	}
+	return info.Size(), nil
+}
@@ -0,0 +1,18 @@
+package backend
+
+import (
+	"os"
+	"path/filepath"
+)
+
+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")
+}
@@ -0,0 +1,258 @@
+package backend
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+	"time"
+)
+
+const (
+	// Spotify image size codes
+	spotifySize640 = "ab67616d0000b273" // 640x640
+	spotifySizeMax = "ab67616d000082c1" // Max resolution
+)
+
+// CoverDownloadRequest represents a request to download cover art
+type CoverDownloadRequest struct {
+	CoverURL       string `json:"cover_url"`
+	TrackName      string `json:"track_name"`
+	ArtistName     string `json:"artist_name"`
+	AlbumName      string `json:"album_name"`
+	AlbumArtist    string `json:"album_artist"`
+	ReleaseDate    string `json:"release_date"`
+	OutputDir      string `json:"output_dir"`
+	FilenameFormat string `json:"filename_format"`
+	TrackNumber    bool   `json:"track_number"`
+	Position       int    `json:"position"`
+	DiscNumber     int    `json:"disc_number"`
+}
+
+// CoverDownloadResponse represents the response from cover download
+type CoverDownloadResponse 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"`
+}
+
+// CoverClient handles cover art downloading
+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]
+	}
+
+	var filename string
+
+	// Check if format is a template (contains {})
+	if strings.Contains(filenameFormat, "{") {
+		filename = filenameFormat
+		filename = strings.ReplaceAll(filename, "{title}", safeTitle)
+		filename = strings.ReplaceAll(filename, "{artist}", safeArtist)
+		filename = strings.ReplaceAll(filename, "{album}", safeAlbum)
+		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"
+			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)
+		}
+	}
+
+	return filename + ".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
+		}
+	}
+	// Return original URL as fallback
+	return coverURL
+}
+
+// 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
+	if embedMaxQualityCover {
+		downloadURL = c.getMaxResolutionURL(coverURL)
+	}
+
+	// Download cover image
+	resp, err := c.httpClient.Get(downloadURL)
+	if err != nil {
+		return fmt.Errorf("failed to download cover: %v", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		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)
+	}
+
+	return nil
+}
+
+// DownloadCover downloads cover art for a single track
+func (c *CoverClient) DownloadCover(req CoverDownloadRequest) (*CoverDownloadResponse, error) {
+	if req.CoverURL == "" {
+		return &CoverDownloadResponse{
+			Success: false,
+			Error:   "Cover URL is required",
+		}, fmt.Errorf("cover URL is required")
+	}
+
+	// Create output directory if it doesn't exist
+	outputDir := req.OutputDir
+	if outputDir == "" {
+		outputDir = GetDefaultMusicPath()
+	} else {
+		outputDir = NormalizePath(outputDir)
+	}
+
+	if err := os.MkdirAll(outputDir, 0755); err != nil {
+		return &CoverDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to create output directory: %v", err),
+		}, err
+	}
+
+	// Generate filename using same format as track
+	filenameFormat := req.FilenameFormat
+	if filenameFormat == "" {
+		filenameFormat = "title-artist" // default
+	}
+	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,
+			Message:       "Cover file already exists",
+			File:          filePath,
+			AlreadyExists: true,
+		}, 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{
+			Success: false,
+			Error:   fmt.Sprintf("failed to download cover: %v", err),
+		}, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return &CoverDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to download cover: HTTP %d", resp.StatusCode),
+		}, fmt.Errorf("HTTP %d", resp.StatusCode)
+	}
+
+	// Create file
+	file, err := os.Create(filePath)
+	if err != nil {
+		return &CoverDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to create file: %v", err),
+		}, err
+	}
+	defer file.Close()
+
+	// Write content to file
+	_, err = io.Copy(file, resp.Body)
+	if err != nil {
+		return &CoverDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to write cover file: %v", err),
+		}, err
+	}
+
+	return &CoverDownloadResponse{
+		Success: true,
+		Message: "Cover downloaded successfully",
+		File:    filePath,
+	}, nil
+}
@@ -0,0 +1,615 @@
+package backend
+
+import (
+	"archive/tar"
+	"archive/zip"
+	"encoding/base64"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"sync"
+
+	"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 {
+		return "", err
+	}
+	return string(decoded), nil
+}
+
+const (
+	ffmpegWindowsURL = "aHR0cHM6Ly9naXRodWIuY29tL0J0Yk4vRkZtcGVnLUJ1aWxkcy9yZWxlYXNlcy9kb3dubG9hZC9sYXRlc3QvZmZtcGVnLW1hc3Rlci1sYXRlc3Qtd2luNjQtZ3BsLnppcA=="
+	ffmpegLinuxURL   = "aHR0cHM6Ly9naXRodWIuY29tL0J0Yk4vRkZtcGVnLUJ1aWxkcy9yZWxlYXNlcy9kb3dubG9hZC9sYXRlc3QvZmZtcGVnLW1hc3Rlci1sYXRlc3QtbGludXg2NC1ncGwudGFyLnh6"
+	ffmpegMacOSURL   = "aHR0cHM6Ly9ldmVybWVldC5jeC9mZm1wZWcvZ2V0cmVsZWFzZS96aXA="
+	ffprobeMacOSURL  = "aHR0cHM6Ly9ldmVybWVldC5jeC9mZm1wZWcvZ2V0cmVsZWFzZS9mZnByb2JlL3ppcA=="
+)
+
+// GetFFmpegDir returns the directory where ffmpeg should be stored
+func GetFFmpegDir() (string, error) {
+	homeDir, err := os.UserHomeDir()
+	if err != nil {
+		return "", fmt.Errorf("failed to get home directory: %w", err)
+	}
+	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 {
+		return "", err
+	}
+
+	ffmpegName := "ffmpeg"
+	if runtime.GOOS == "windows" {
+		ffmpegName = "ffmpeg.exe"
+	}
+
+	return filepath.Join(ffmpegDir, ffmpegName), nil
+}
+
+// GetFFprobePath returns the full path to the ffprobe executable in app directory
+func GetFFprobePath() (string, error) {
+	ffmpegDir, err := GetFFmpegDir()
+	if err != nil {
+		return "", err
+	}
+
+	ffprobeName := "ffprobe"
+	if runtime.GOOS == "windows" {
+		ffprobeName = "ffprobe.exe"
+	}
+
+	ffprobePath := filepath.Join(ffmpegDir, ffprobeName)
+	if _, err := os.Stat(ffprobePath); err == nil {
+		return ffprobePath, nil
+	}
+
+	return "", fmt.Errorf("ffprobe not found in app directory")
+}
+
+// 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
+	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) {
+		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 {
+	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 {
+				return err
+			}
+
+			ffprobeURL, _ := decodeBase64(ffprobeMacOSURL)
+			fmt.Printf("[FFmpeg] Downloading ffprobe from: %s\n", ffprobeURL)
+			if err := downloadAndExtract(ffprobeURL, ffmpegDir, progressCallback, 50, 100); err != nil {
+				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 {
+				return fmt.Errorf("failed to download ffprobe: %w", err)
+			}
+		}
+		return nil
+	}
+
+	// For Windows/Linux: single archive contains both ffmpeg and ffprobe
+	var encodedURL string
+	switch runtime.GOOS {
+	case "windows":
+		encodedURL = ffmpegWindowsURL
+	case "linux":
+		encodedURL = ffmpegLinuxURL
+	default:
+		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)
+	}
+
+	fmt.Printf("[FFmpeg] Downloading from: %s\n", url)
+
+	if err := downloadAndExtract(url, ffmpegDir, progressCallback, 0, 100); err != nil {
+		return err
+	}
+
+	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)
+	}
+	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)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return fmt.Errorf("failed to download: HTTP %d", resp.StatusCode)
+	}
+
+	totalSize := resp.ContentLength
+	var downloaded int64
+
+	// Create a progress reader
+	buf := make([]byte, 32*1024)
+	for {
+		n, err := resp.Body.Read(buf)
+		if n > 0 {
+			_, writeErr := tmpFile.Write(buf[:n])
+			if writeErr != nil {
+				return fmt.Errorf("failed to write to temp file: %w", writeErr)
+			}
+			downloaded += int64(n)
+			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 err == io.EOF {
+			break
+		}
+		if err != nil {
+			return fmt.Errorf("failed to read response: %w", err)
+		}
+	}
+
+	tmpFile.Close()
+
+	fmt.Printf("[FFmpeg] Download complete, 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 {
+		return fmt.Errorf("failed to open zip: %w", err)
+	}
+	defer r.Close()
+
+	ffmpegName := "ffmpeg"
+	ffprobeName := "ffprobe"
+	if runtime.GOOS == "windows" {
+		ffmpegName = "ffmpeg.exe"
+		ffprobeName = "ffprobe.exe"
+	}
+
+	foundFFmpeg := false
+	foundFFprobe := false
+
+	for _, f := range r.File {
+		baseName := filepath.Base(f.Name)
+		if f.FileInfo().IsDir() {
+			continue
+		}
+
+		var destPath string
+		if baseName == ffmpegName {
+			destPath = filepath.Join(destDir, ffmpegName)
+			foundFFmpeg = true
+		} else if baseName == ffprobeName {
+			destPath = filepath.Join(destDir, ffprobeName)
+			foundFFprobe = true
+		} else {
+			// Skip ffplay and other files
+			continue
+		}
+
+		fmt.Printf("[FFmpeg] Found: %s\n", f.Name)
+
+		rc, err := f.Open()
+		if err != nil {
+			return fmt.Errorf("failed to open file in zip: %w", err)
+		}
+
+		outFile, err := os.OpenFile(destPath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0755)
+		if err != nil {
+			rc.Close()
+			return fmt.Errorf("failed to create output file: %w", err)
+		}
+
+		_, err = io.Copy(outFile, rc)
+		rc.Close()
+		outFile.Close()
+
+		if err != nil {
+			return fmt.Errorf("failed to extract file: %w", err)
+		}
+
+		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")
+	}
+
+	if foundFFmpeg {
+		fmt.Printf("[FFmpeg] ffmpeg extracted successfully\n")
+	}
+	if foundFFprobe {
+		fmt.Printf("[FFmpeg] ffprobe extracted successfully\n")
+	}
+
+	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 {
+		return fmt.Errorf("failed to open tar.xz: %w", err)
+	}
+	defer file.Close()
+
+	xzReader, err := xz.NewReader(file)
+	if err != nil {
+		return fmt.Errorf("failed to create xz reader: %w", err)
+	}
+
+	tarReader := tar.NewReader(xzReader)
+
+	ffmpegName := "ffmpeg"
+	ffprobeName := "ffprobe"
+	foundFFmpeg := false
+	foundFFprobe := false
+
+	for {
+		header, err := tarReader.Next()
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			return fmt.Errorf("failed to read tar: %w", err)
+		}
+
+		if header.Typeflag != tar.TypeReg {
+			continue
+		}
+
+		baseName := filepath.Base(header.Name)
+		var destPath string
+
+		if baseName == ffmpegName {
+			destPath = filepath.Join(destDir, ffmpegName)
+			foundFFmpeg = true
+		} else if baseName == ffprobeName {
+			destPath = filepath.Join(destDir, ffprobeName)
+			foundFFprobe = true
+		} else {
+			// Skip ffplay and other files
+			continue
+		}
+
+		fmt.Printf("[FFmpeg] Found: %s\n", header.Name)
+
+		outFile, err := os.OpenFile(destPath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0755)
+		if err != nil {
+			return fmt.Errorf("failed to create output file: %w", err)
+		}
+
+		_, err = io.Copy(outFile, tarReader)
+		outFile.Close()
+
+		if err != nil {
+			return fmt.Errorf("failed to extract file: %w", err)
+		}
+
+		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")
+	}
+
+	if foundFFmpeg {
+		fmt.Printf("[FFmpeg] ffmpeg extracted successfully\n")
+	}
+	if foundFFprobe {
+		fmt.Printf("[FFmpeg] ffprobe extracted successfully\n")
+	}
+
+	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"
+}
+
+// ConvertAudioResult represents the result of a single file conversion
+type ConvertAudioResult struct {
+	InputFile  string `json:"input_file"`
+	OutputFile string `json:"output_file"`
+	Success    bool   `json:"success"`
+	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)
+	}
+
+	installed, err := IsFFmpegInstalled()
+	if err != nil || !installed {
+		return nil, fmt.Errorf("ffmpeg is not installed")
+	}
+
+	results := make([]ConvertAudioResult, len(req.InputFiles))
+	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) {
+			defer wg.Done()
+
+			result := ConvertAudioResult{
+				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
+				mu.Lock()
+				results[idx] = result
+				mu.Unlock()
+				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
+				mu.Lock()
+				results[idx] = result
+				mu.Unlock()
+				return
+			}
+
+			result.OutputFile = outputFile
+
+			// Extract cover art and lyrics from input file before conversion
+			var coverArtPath string
+			var lyrics string
+
+			coverArtPath, _ = ExtractCoverArt(inputFile)
+			lyrics, err = ExtractLyrics(inputFile)
+			if err != nil {
+				fmt.Printf("[FFmpeg] Warning: Failed to extract lyrics from %s: %v\n", inputFile, err)
+			} else if lyrics != "" {
+				fmt.Printf("[FFmpeg] Lyrics extracted from %s: %d characters\n", inputFile, len(lyrics))
+			} else {
+				fmt.Printf("[FFmpeg] No lyrics found in %s\n", inputFile)
+			}
+
+			// Build ffmpeg command
+			args := []string{
+				"-i", inputFile,
+				"-y", // Overwrite output
+			}
+
+			// 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 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
+				}
+
+				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
+					)
+				} 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 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)
+
+			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 {
+				result.Error = fmt.Sprintf("conversion failed: %s - %s", err.Error(), string(output))
+				result.Success = false
+				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 lyrics != "" {
+				if err := EmbedLyricsOnlyUniversal(outputFile, lyrics); err != nil {
+					fmt.Printf("[FFmpeg] Warning: Failed to embed lyrics: %v\n", err)
+				} else {
+					fmt.Printf("[FFmpeg] Lyrics embedded successfully\n")
+				}
+			}
+
+			result.Success = true
+			fmt.Printf("[FFmpeg] Successfully converted: %s\n", outputFile)
+
+			mu.Lock()
+			results[idx] = result
+			mu.Unlock()
+		}(i, inputFile)
+	}
+
+	wg.Wait()
+	return results, nil
+}
+
+// GetAudioInfo returns information about an audio file
+type AudioFileInfo struct {
+	Path     string `json:"path"`
+	Filename string `json:"filename"`
+	Format   string `json:"format"`
+	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 {
+		return nil, err
+	}
+
+	ext := strings.ToLower(strings.TrimPrefix(filepath.Ext(filePath), "."))
+	return &AudioFileInfo{
+		Path:     filePath,
+		Filename: filepath.Base(filePath),
+		Format:   ext,
+		Size:     info.Size(),
+	}, nil
+}
@@ -0,0 +1,14 @@
+//go:build !windows
+// +build !windows
+
+package backend
+
+import (
+	"os/exec"
+)
+
+// setHideWindow is a no-op on non-Windows platforms
+func setHideWindow(cmd *exec.Cmd) {
+	// No-op on Unix-like systems
+}
+
@@ -0,0 +1,17 @@
+//go:build windows
+// +build windows
+
+package backend
+
+import (
+	"os/exec"
+	"syscall"
+)
+
+// setHideWindow sets HideWindow attribute for Windows processes
+func setHideWindow(cmd *exec.Cmd) {
+	cmd.SysProcAttr = &syscall.SysProcAttr{
+		HideWindow: true,
+	}
+}
+
@@ -0,0 +1,52 @@
+package backend
+
+import (
+	"context"
+
+	"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",
+		Filters: []runtime.FileFilter{
+			{
+				DisplayName: "Audio Files (*.mp3, *.m4a, *.flac)",
+				Pattern:     "*.mp3;*.m4a;*.flac",
+			},
+			{
+				DisplayName: "MP3 Files (*.mp3)",
+				Pattern:     "*.mp3",
+			},
+			{
+				DisplayName: "M4A Files (*.m4a)",
+				Pattern:     "*.m4a",
+			},
+			{
+				DisplayName: "FLAC Files (*.flac)",
+				Pattern:     "*.flac",
+			},
+			{
+				DisplayName: "All Files (*.*)",
+				Pattern:     "*.*",
+			},
+		},
+	})
+	if err != nil {
+		return nil, err
+	}
+	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",
+	})
+	if err != nil {
+		return "", err
+	}
+	return dir, nil
+}
+
@@ -0,0 +1,498 @@
+package backend
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strconv"
+	"strings"
+
+	id3v2 "github.com/bogem/id3v2/v2"
+	"github.com/go-flac/flacvorbis"
+	"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"`
+	IsDir    bool       `json:"is_dir"`
+	Size     int64      `json:"size"`
+	Children []FileInfo `json:"children,omitempty"`
+}
+
+// AudioMetadata represents metadata read from an audio file
+type AudioMetadata struct {
+	Title       string `json:"title"`
+	Artist      string `json:"artist"`
+	Album       string `json:"album"`
+	AlbumArtist string `json:"album_artist"`
+	TrackNumber int    `json:"track_number"`
+	DiscNumber  int    `json:"disc_number"`
+	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"`
+	NewName  string        `json:"new_name"`
+	NewPath  string        `json:"new_path"`
+	Error    string        `json:"error,omitempty"`
+	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"`
+	Success bool   `json:"success"`
+	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 {
+		return nil, fmt.Errorf("failed to read directory: %w", err)
+	}
+
+	var result []FileInfo
+	for _, entry := range entries {
+		info, err := entry.Info()
+		if err != nil {
+			continue
+		}
+
+		fileInfo := FileInfo{
+			Name:  entry.Name(),
+			Path:  filepath.Join(dirPath, entry.Name()),
+			IsDir: entry.IsDir(),
+			Size:  info.Size(),
+		}
+
+		// If it's a directory, recursively list its contents
+		if entry.IsDir() {
+			children, err := ListDirectory(fileInfo.Path)
+			if err == nil {
+				fileInfo.Children = children
+			}
+		}
+
+		result = append(result, fileInfo)
+	}
+
+	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
+		}
+
+		if info.IsDir() {
+			return nil
+		}
+
+		ext := strings.ToLower(filepath.Ext(path))
+		if ext == ".flac" || ext == ".mp3" || ext == ".m4a" {
+			result = append(result, FileInfo{
+				Name:  info.Name(),
+				Path:  path,
+				IsDir: false,
+				Size:  info.Size(),
+			})
+		}
+
+		return nil
+	})
+
+	if err != nil {
+		return nil, fmt.Errorf("failed to walk directory: %w", err)
+	}
+
+	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")
+	}
+
+	ext := strings.ToLower(filepath.Ext(filePath))
+
+	switch ext {
+	case ".flac":
+		return readFlacMetadata(filePath)
+	case ".mp3":
+		return readMp3Metadata(filePath)
+	case ".m4a":
+		return readM4aMetadata(filePath)
+	default:
+		return nil, fmt.Errorf("unsupported file format: %s", ext)
+	}
+}
+
+// readFlacMetadata reads metadata from a FLAC file
+func readFlacMetadata(filePath string) (*AudioMetadata, error) {
+	f, err := flac.ParseFile(filePath)
+	if err != nil {
+		return nil, fmt.Errorf("failed to parse FLAC file: %w", err)
+	}
+
+	metadata := &AudioMetadata{}
+
+	for _, block := range f.Meta {
+		if block.Type == flac.VorbisComment {
+			cmt, err := flacvorbis.ParseFromMetaDataBlock(*block)
+			if err != nil {
+				continue
+			}
+
+			for _, comment := range cmt.Comments {
+				parts := strings.SplitN(comment, "=", 2)
+				if len(parts) != 2 {
+					continue
+				}
+
+				fieldName := strings.ToUpper(parts[0])
+				value := parts[1]
+
+				switch fieldName {
+				case "TITLE":
+					metadata.Title = value
+				case "ARTIST":
+					metadata.Artist = value
+				case "ALBUM":
+					metadata.Album = value
+				case "ALBUMARTIST":
+					metadata.AlbumArtist = value
+				case "TRACKNUMBER":
+					if num, err := strconv.Atoi(value); err == nil {
+						metadata.TrackNumber = num
+					}
+				case "DISCNUMBER":
+					if num, err := strconv.Atoi(value); err == nil {
+						metadata.DiscNumber = num
+					}
+				case "DATE", "YEAR":
+					metadata.Year = value
+				}
+			}
+		}
+	}
+
+	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 {
+		return nil, fmt.Errorf("failed to open MP3 file: %w", err)
+	}
+	defer tag.Close()
+
+	metadata := &AudioMetadata{
+		Title:  tag.Title(),
+		Artist: tag.Artist(),
+		Album:  tag.Album(),
+		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]
+			if num, err := strconv.Atoi(trackStr); err == nil {
+				metadata.TrackNumber = num
+			}
+		}
+	}
+
+	// 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]
+			if num, err := strconv.Atoi(discStr); err == nil {
+				metadata.DiscNumber = num
+			}
+		}
+	}
+
+	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)
+	cmd := exec.Command(ffprobePath,
+		"-v", "quiet",
+		"-print_format", "json",
+		"-show_format",
+		"-show_streams",
+		filePath,
+	)
+
+	// Hide console window on Windows
+	setHideWindow(cmd)
+
+	output, err := cmd.Output()
+	if err != nil {
+		return nil, err
+	}
+
+	// Parse JSON output
+	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 nil, err
+	}
+
+	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":
+			metadata.Title = value
+		case "artist":
+			metadata.Artist = value
+		case "album":
+			metadata.Album = value
+		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
+			}
+		case "disc":
+			discStr := strings.Split(value, "/")[0]
+			if num, err := strconv.Atoi(discStr); err == nil {
+				metadata.DiscNumber = num
+			}
+		case "date", "year":
+			if metadata.Year == "" || len(value) > len(metadata.Year) {
+				metadata.Year = value
+			}
+		}
+	}
+
+	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 {
+		return &AudioMetadata{}, nil
+	}
+	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 ""
+	}
+
+	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 == "" {
+		return ""
+	}
+
+	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 {
+		result = strings.ReplaceAll(result, char, "")
+	}
+	return strings.TrimSpace(result)
+}
+
+// PreviewRename generates a preview of rename operations
+func PreviewRename(files []string, format string) []RenamePreview {
+	var previews []RenamePreview
+
+	for _, filePath := range files {
+		preview := RenamePreview{
+			OldPath: filePath,
+			OldName: filepath.Base(filePath),
+		}
+
+		metadata, err := ReadAudioMetadata(filePath)
+		if err != nil {
+			preview.Error = err.Error()
+			previews = append(previews, preview)
+			continue
+		}
+
+		preview.Metadata = *metadata
+
+		ext := filepath.Ext(filePath)
+		newName := GenerateFilename(metadata, format, ext)
+
+		if newName == "" {
+			preview.Error = "Could not generate filename (missing metadata)"
+			previews = append(previews, preview)
+			continue
+		}
+
+		preview.NewName = newName
+		preview.NewPath = filepath.Join(filepath.Dir(filePath), newName)
+
+		previews = append(previews, preview)
+	}
+
+	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 {
+		info, err := os.Stat(filePath)
+		if err == nil {
+			result[filePath] = info.Size()
+		}
+	}
+	return result
+}
+
+// RenameFiles renames files based on their metadata
+func RenameFiles(files []string, format string) []RenameResult {
+	var results []RenameResult
+
+	for _, filePath := range files {
+		result := RenameResult{
+			OldPath: filePath,
+		}
+
+		metadata, err := ReadAudioMetadata(filePath)
+		if err != nil {
+			result.Error = err.Error()
+			result.Success = false
+			results = append(results, result)
+			continue
+		}
+
+		ext := filepath.Ext(filePath)
+		newName := GenerateFilename(metadata, format, ext)
+
+		if newName == "" {
+			result.Error = "Could not generate filename (missing metadata)"
+			result.Success = false
+			results = append(results, result)
+			continue
+		}
+
+		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"
+				result.Success = false
+				results = append(results, result)
+				continue
+			}
+		}
+
+		// Rename the file
+		if err := os.Rename(filePath, newPath); err != nil {
+			result.Error = err.Error()
+			result.Success = false
+			results = append(results, result)
+			continue
+		}
+
+		result.Success = true
+		results = append(results, result)
+	}
+
+	return results
+}
@@ -0,0 +1,189 @@
+package backend
+
+import (
+	"fmt"
+	"path/filepath"
+	"regexp"
+	"strings"
+	"unicode"
+	"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)
+
+	// Extract year from release date (format: YYYY-MM-DD or YYYY)
+	year := ""
+	if len(releaseDate) >= 4 {
+		year = releaseDate[:4]
+	}
+
+	var filename string
+
+	// Check if format is a template (contains {})
+	if strings.Contains(filenameFormat, "{") {
+		filename = filenameFormat
+		filename = strings.ReplaceAll(filename, "{title}", safeTitle)
+		filename = strings.ReplaceAll(filename, "{artist}", safeArtist)
+		filename = strings.ReplaceAll(filename, "{album}", safeAlbum)
+		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 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"
+			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)
+		}
+	}
+
+	return filename + ".flac"
+}
+
+// sanitizeFilename removes invalid characters from filename
+func sanitizeFilename(name string) string {
+	// Replace forward slash with space (more natural than underscore)
+	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 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)
+		}
+	}
+
+	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)
+}
@@ -0,0 +1,78 @@
+package backend
+
+import (
+	"context"
+	"os/exec"
+	"runtime"
+
+	wailsRuntime "github.com/wailsapp/wails/v2/pkg/runtime"
+)
+
+func OpenFolderInExplorer(path string) error {
+	var cmd *exec.Cmd
+
+	switch runtime.GOOS {
+	case "windows":
+		cmd = exec.Command("explorer", path)
+	case "darwin": // macOS
+		cmd = exec.Command("open", path)
+	case "linux":
+		cmd = exec.Command("xdg-open", path)
+	default:
+		cmd = exec.Command("xdg-open", path)
+	}
+
+	return cmd.Start()
+}
+
+func SelectFolderDialog(ctx context.Context, defaultPath string) (string, error) {
+	// If defaultPath is empty, use default music path
+	if defaultPath == "" {
+		defaultPath = GetDefaultMusicPath()
+	}
+
+	options := wailsRuntime.OpenDialogOptions{
+		Title:            "Select Download Folder",
+		DefaultDirectory: defaultPath,
+	}
+
+	selectedPath, err := wailsRuntime.OpenDirectoryDialog(ctx, options)
+	if err != nil {
+		return "", err
+	}
+
+	// If user cancelled, selectedPath will be empty
+	if selectedPath == "" {
+		return "", nil
+	}
+
+	return selectedPath, nil
+}
+
+func SelectFileDialog(ctx context.Context) (string, error) {
+	options := wailsRuntime.OpenDialogOptions{
+		Title: "Select FLAC File for Analysis",
+		Filters: []wailsRuntime.FileFilter{
+			{
+				DisplayName: "FLAC Audio Files (*.flac)",
+				Pattern:     "*.flac",
+			},
+			{
+				DisplayName: "All Files (*.*)",
+				Pattern:     "*.*",
+			},
+		},
+	}
+
+	selectedFile, err := wailsRuntime.OpenFileDialog(ctx, options)
+	if err != nil {
+		return "", err
+	}
+
+	// If user cancelled, selectedFile will be empty
+	if selectedFile == "" {
+		return "", nil
+	}
+
+	return selectedFile, nil
+}
@@ -0,0 +1,441 @@
+package backend
+
+import (
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+	"time"
+)
+
+// LRCLibResponse represents the LRCLIB API response
+type LRCLibResponse struct {
+	ID           int     `json:"id"`
+	Name         string  `json:"name"`
+	TrackName    string  `json:"trackName"`
+	ArtistName   string  `json:"artistName"`
+	AlbumName    string  `json:"albumName"`
+	Duration     float64 `json:"duration"`
+	Instrumental bool    `json:"instrumental"`
+	PlainLyrics  string  `json:"plainLyrics"`
+	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"`
+	ArtistName          string `json:"artist_name"`
+	AlbumName           string `json:"album_name"`
+	AlbumArtist         string `json:"album_artist"`
+	ReleaseDate         string `json:"release_date"`
+	OutputDir           string `json:"output_dir"`
+	FilenameFormat      string `json:"filename_format"`
+	TrackNumber         bool   `json:"track_number"`
+	Position            int    `json:"position"`
+	UseAlbumTrackNumber bool   `json:"use_album_track_number"`
+	DiscNumber          int    `json:"disc_number"`
+}
+
+// LyricsDownloadResponse represents the response from lyrics download
+type LyricsDownloadResponse 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"`
+}
+
+// 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
+	apiBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9scmNsaWIubmV0L2FwaS9nZXQ/YXJ0aXN0X25hbWU9")
+	apiURL := fmt.Sprintf("%s%s&track_name=%s",
+		string(apiBase),
+		url.QueryEscape(artistName),
+		url.QueryEscape(trackName))
+
+	resp, err := c.httpClient.Get(apiURL)
+	if err != nil {
+		return nil, fmt.Errorf("failed to fetch from LRCLIB: %v", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		return nil, fmt.Errorf("LRCLIB returned status %d", resp.StatusCode)
+	}
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read LRCLIB response: %v", err)
+	}
+
+	var lrcLibResp LRCLibResponse
+	if err := json.Unmarshal(body, &lrcLibResp); err != nil {
+		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,
+		SyncType: "LINE_SYNCED",
+		Lines:    []LyricsLine{},
+	}
+
+	// Prefer synced lyrics, fall back to plain
+	lyricsText := lrcLib.SyncedLyrics
+	if lyricsText == "" {
+		lyricsText = lrcLib.PlainLyrics
+		resp.SyncType = "UNSYNCED"
+	}
+
+	if lyricsText == "" {
+		resp.Error = true
+		return resp
+	}
+
+	// Parse synced lyrics format [mm:ss.xx] text
+	lines := strings.Split(lyricsText, "\n")
+	for _, line := range lines {
+		line = strings.TrimSpace(line)
+		if line == "" {
+			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),
+					Words:       words,
+				})
+				continue
+			}
+		}
+
+		// Plain lyrics line (no timestamp)
+		resp.Lines = append(resp.Lines, LyricsLine{
+			StartTimeMs: "0",
+			Words:       line,
+		})
+	}
+
+	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
+	}
+	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=")
+	apiURL := fmt.Sprintf("%s%s", string(apiBase), url.QueryEscape(query))
+
+	resp, err := c.httpClient.Get(apiURL)
+	if err != nil {
+		return nil, fmt.Errorf("request failed: %v", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		return nil, fmt.Errorf("status %d", resp.StatusCode)
+	}
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, fmt.Errorf("read failed: %v", err)
+	}
+
+	var results []LRCLibResponse
+	if err := json.Unmarshal(body, &results); err != nil {
+		return nil, fmt.Errorf("parse failed: %v", err)
+	}
+
+	if len(results) == 0 {
+		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 != "" {
+			best = &results[i]
+			break
+		}
+		if best == nil && results[i].PlainLyrics != "" {
+			best = &results[i]
+		}
+	}
+
+	if best == nil {
+		best = &results[0]
+	}
+
+	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)
+	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)
+		if err == nil && resp != nil && !resp.Error && len(resp.Lines) > 0 {
+			return resp, "LRCLIB (simplified)", nil
+		}
+
+		resp, err = c.FetchLyricsFromLRCLibSearch(simplifiedTrack, artistName)
+		if err == nil && resp != nil && !resp.Error && len(resp.Lines) > 0 {
+			return resp, "LRCLIB Search (simplified)", nil
+		}
+	}
+
+	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))
+	}
+
+	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)
+
+	totalSeconds := ms / 1000
+	minutes := totalSeconds / 60
+	seconds := totalSeconds % 60
+	centiseconds := (ms % 1000) / 10
+
+	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]
+	}
+
+	var filename string
+
+	// Check if format is a template (contains {})
+	if strings.Contains(filenameFormat, "{") {
+		filename = filenameFormat
+		filename = strings.ReplaceAll(filename, "{title}", safeTitle)
+		filename = strings.ReplaceAll(filename, "{artist}", safeArtist)
+		filename = strings.ReplaceAll(filename, "{album}", safeAlbum)
+		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"
+			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)
+		}
+	}
+
+	return filename + ".lrc"
+}
+
+// DownloadLyrics downloads lyrics for a single track
+func (c *LyricsClient) DownloadLyrics(req LyricsDownloadRequest) (*LyricsDownloadResponse, error) {
+	if req.SpotifyID == "" {
+		return &LyricsDownloadResponse{
+			Success: false,
+			Error:   "Spotify ID is required",
+		}, fmt.Errorf("spotify ID is required")
+	}
+
+	// Create output directory if it doesn't exist
+	outputDir := req.OutputDir
+	if outputDir == "" {
+		outputDir = GetDefaultMusicPath()
+	} else {
+		outputDir = NormalizePath(outputDir)
+	}
+
+	if err := os.MkdirAll(outputDir, 0755); err != nil {
+		return &LyricsDownloadResponse{
+			Success: false,
+			Error:   fmt.Sprintf("failed to create output directory: %v", err),
+		}, err
+	}
+
+	// Generate filename using same format as track
+	filenameFormat := req.FilenameFormat
+	if filenameFormat == "" {
+		filenameFormat = "title-artist" // default
+	}
+	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,
+			Message:       "Lyrics file already exists",
+			File:          filePath,
+			AlreadyExists: true,
+		}, nil
+	}
+
+	// Fetch lyrics from LRCLIB
+	lyrics, _, err := c.FetchLyricsAllSources(req.SpotifyID, req.TrackName, req.ArtistName)
+	if err != nil {
+		return &LyricsDownloadResponse{
+			Success: false,
+			Error:   err.Error(),
+		}, 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,
+			Error:   fmt.Sprintf("failed to write LRC file: %v", err),
+		}, err
+	}
+
+	return &LyricsDownloadResponse{
+		Success: true,
+		Message: "Lyrics downloaded successfully",
+		File:    filePath,
+	}, nil
+}
@@ -0,0 +1,686 @@
+package backend
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	pathfilepath "path/filepath"
+	"strconv"
+	"strings"
+	"sync"
+
+	id3v2 "github.com/bogem/id3v2/v2"
+	"github.com/go-flac/flacpicture"
+	"github.com/go-flac/flacvorbis"
+	"github.com/go-flac/go-flac"
+)
+
+type Metadata struct {
+	Title       string
+	Artist      string
+	Album       string
+	AlbumArtist string
+	Date        string // Recorded date (full date YYYY-MM-DD)
+	ReleaseDate string // Release date (full date) - kept for compatibility
+	TrackNumber int
+	TotalTracks int // Total tracks in album
+	DiscNumber  int
+	ISRC        string
+	Lyrics      string
+	Description string
+}
+
+func EmbedMetadata(filepath string, metadata Metadata, coverPath string) error {
+	f, err := flac.ParseFile(filepath)
+	if err != nil {
+		return fmt.Errorf("failed to parse FLAC file: %w", err)
+	}
+
+	var cmtIdx = -1
+	for idx, block := range f.Meta {
+		if block.Type == flac.VorbisComment {
+			cmtIdx = idx
+			break
+		}
+	}
+
+	cmt := flacvorbis.New()
+
+	if metadata.Title != "" {
+		_ = cmt.Add(flacvorbis.FIELD_TITLE, metadata.Title)
+	}
+	if metadata.Artist != "" {
+		_ = cmt.Add(flacvorbis.FIELD_ARTIST, metadata.Artist)
+	}
+	if metadata.Album != "" {
+		_ = cmt.Add(flacvorbis.FIELD_ALBUM, metadata.Album)
+	}
+	if metadata.AlbumArtist != "" {
+		_ = cmt.Add("ALBUMARTIST", metadata.AlbumArtist)
+	}
+	if metadata.Date != "" {
+		_ = cmt.Add(flacvorbis.FIELD_DATE, metadata.Date)
+	}
+	if metadata.TrackNumber > 0 {
+		_ = cmt.Add(flacvorbis.FIELD_TRACKNUMBER, strconv.Itoa(metadata.TrackNumber))
+	}
+	if metadata.TotalTracks > 0 {
+		_ = cmt.Add("TOTALTRACKS", strconv.Itoa(metadata.TotalTracks))
+	}
+	if metadata.DiscNumber > 0 {
+		_ = cmt.Add("DISCNUMBER", strconv.Itoa(metadata.DiscNumber))
+	}
+	if metadata.ISRC != "" {
+		_ = cmt.Add(flacvorbis.FIELD_ISRC, metadata.ISRC)
+	}
+	if metadata.Description != "" {
+		_ = cmt.Add("DESCRIPTION", metadata.Description)
+	}
+	// Lyrics is added last to keep it at the bottom
+	if metadata.Lyrics != "" {
+		_ = cmt.Add("LYRICS", metadata.Lyrics) // Or "UNSYNCEDLYRICS" for unsynced
+	}
+
+	cmtBlock := cmt.Marshal()
+	if cmtIdx < 0 {
+		f.Meta = append(f.Meta, &cmtBlock)
+	} else {
+		f.Meta[cmtIdx] = &cmtBlock
+	}
+
+	if coverPath != "" && fileExists(coverPath) {
+		if err := embedCoverArt(f, coverPath); err != nil {
+			fmt.Printf("Warning: Failed to embed cover art: %v\n", err)
+		}
+	}
+
+	if err := f.Save(filepath); err != nil {
+		return fmt.Errorf("failed to save FLAC file: %w", err)
+	}
+
+	return nil
+}
+
+func embedCoverArt(f *flac.File, coverPath string) error {
+	imgData, err := os.ReadFile(coverPath)
+	if err != nil {
+		return fmt.Errorf("failed to read cover image: %w", err)
+	}
+
+	picture, err := flacpicture.NewFromImageData(
+		flacpicture.PictureTypeFrontCover,
+		"Cover",
+		imgData,
+		"image/jpeg",
+	)
+	if err != nil {
+		return fmt.Errorf("failed to create picture block: %w", err)
+	}
+
+	pictureBlock := picture.Marshal()
+
+	for i := len(f.Meta) - 1; i >= 0; i-- {
+		if f.Meta[i].Type == flac.Picture {
+			f.Meta = append(f.Meta[:i], f.Meta[i+1:]...)
+		}
+	}
+
+	f.Meta = append(f.Meta, &pictureBlock)
+
+	return nil
+}
+
+func fileExists(path string) bool {
+	_, err := os.Stat(path)
+	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
+	}
+	f, err := flac.ParseFile(filepath)
+	if err != nil {
+		return fmt.Errorf("failed to parse FLAC file: %w", err)
+	}
+
+	var cmtIdx = -1
+	var existingCmt *flacvorbis.MetaDataBlockVorbisComment
+	for idx, block := range f.Meta {
+		if block.Type == flac.VorbisComment {
+			cmtIdx = idx
+			existingCmt, err = flacvorbis.ParseFromMetaDataBlock(*block)
+			if err != nil {
+				existingCmt = nil
+			}
+			break
+		}
+	}
+
+	// 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)
+			if len(parts) == 2 {
+				fieldName := strings.ToUpper(parts[0])
+				if fieldName != "LYRICS" && fieldName != "UNSYNCEDLYRICS" && fieldName != "SYNCEDLYRICS" {
+					_ = cmt.Add(parts[0], parts[1])
+				}
+			}
+		}
+	}
+
+	// Add lyrics
+	_ = cmt.Add("LYRICS", lyrics)
+
+	cmtBlock := cmt.Marshal()
+	if cmtIdx < 0 {
+		f.Meta = append(f.Meta, &cmtBlock)
+	} else {
+		f.Meta[cmtIdx] = &cmtBlock
+	}
+
+	if err := f.Save(filepath); err != nil {
+		return fmt.Errorf("failed to save FLAC file: %w", err)
+	}
+
+	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))
+
+	switch ext {
+	case ".mp3":
+		return extractCoverFromMp3(filePath)
+	case ".m4a", ".flac":
+		return extractCoverFromM4AOrFlac(filePath)
+	default:
+		return "", fmt.Errorf("unsupported file format: %s", ext)
+	}
+}
+
+// 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 {
+		return "", fmt.Errorf("failed to open MP3 file: %w", err)
+	}
+	defer tag.Close()
+
+	pictures := tag.GetFrames(tag.CommonID("Attached picture"))
+	if len(pictures) == 0 {
+		return "", fmt.Errorf("no cover art found")
+	}
+
+	pic, ok := pictures[0].(id3v2.PictureFrame)
+	if !ok {
+		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)
+	}
+	defer tmpFile.Close()
+
+	if _, err := tmpFile.Write(pic.Picture); err != nil {
+		os.Remove(tmpFile.Name())
+		return "", fmt.Errorf("failed to write cover art: %w", err)
+	}
+
+	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))
+
+	if ext == ".flac" {
+		f, err := flac.ParseFile(filePath)
+		if err != nil {
+			return "", fmt.Errorf("failed to parse FLAC file: %w", err)
+		}
+
+		for _, block := range f.Meta {
+			if block.Type == flac.Picture {
+				pic, err := flacpicture.ParseFromMetaDataBlock(*block)
+				if err != nil {
+					continue
+				}
+
+				// Create temporary file
+				tmpFile, err := os.CreateTemp("", "cover-*.jpg")
+				if err != nil {
+					return "", fmt.Errorf("failed to create temp file: %w", err)
+				}
+				defer tmpFile.Close()
+
+				if _, err := tmpFile.Write(pic.ImageData); err != nil {
+					os.Remove(tmpFile.Name())
+					return "", fmt.Errorf("failed to write cover art: %w", err)
+				}
+
+				return tmpFile.Name(), nil
+			}
+		}
+		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))
+
+	switch ext {
+	case ".mp3":
+		return extractLyricsFromMp3(filePath)
+	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 {
+		return "", fmt.Errorf("failed to open MP3 file: %w", err)
+	}
+	defer tag.Close()
+
+	usltFrames := tag.GetFrames(tag.CommonID("Unsynchronised lyrics/text transcription"))
+	if len(usltFrames) == 0 {
+		fmt.Printf("[ExtractLyrics] No USLT frames found in MP3: %s\n", filePath)
+		return "", nil
+	}
+
+	uslt, ok := usltFrames[0].(id3v2.UnsynchronisedLyricsFrame)
+	if !ok {
+		fmt.Printf("[ExtractLyrics] USLT frame type assertion failed in MP3: %s\n", filePath)
+		return "", nil
+	}
+
+	if uslt.Lyrics == "" {
+		fmt.Printf("[ExtractLyrics] USLT frame has empty lyrics in MP3: %s\n", filePath)
+		return "", nil
+	}
+
+	fmt.Printf("[ExtractLyrics] Successfully extracted lyrics from MP3: %s (%d characters)\n", filePath, len(uslt.Lyrics))
+	return uslt.Lyrics, nil
+}
+
+// extractLyricsFromFlac extracts lyrics from FLAC file
+func extractLyricsFromFlac(filePath string) (string, error) {
+	f, err := flac.ParseFile(filePath)
+	if err != nil {
+		return "", fmt.Errorf("failed to parse FLAC file: %w", err)
+	}
+
+	for _, block := range f.Meta {
+		if block.Type == flac.VorbisComment {
+			cmt, err := flacvorbis.ParseFromMetaDataBlock(*block)
+			if err != nil {
+				continue
+			}
+
+			// Search through comments for lyrics
+			for _, comment := range cmt.Comments {
+				parts := strings.SplitN(comment, "=", 2)
+				if len(parts) == 2 {
+					fieldName := strings.ToUpper(parts[0])
+					if fieldName == "LYRICS" || fieldName == "UNSYNCEDLYRICS" {
+						lyrics := parts[1]
+						fmt.Printf("[ExtractLyrics] Successfully extracted lyrics from FLAC: %s (%d characters)\n", filePath, len(lyrics))
+						return lyrics, nil
+					}
+				}
+			}
+		}
+	}
+
+	fmt.Printf("[ExtractLyrics] No lyrics found in FLAC: %s\n", filePath)
+	return "", nil
+}
+
+// EmbedCoverArtOnly embeds cover art into an audio file
+func EmbedCoverArtOnly(filePath string, coverPath string) error {
+	if coverPath == "" || !fileExists(coverPath) {
+		return nil
+	}
+
+	ext := strings.ToLower(pathfilepath.Ext(filePath))
+
+	switch ext {
+	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 {
+		return fmt.Errorf("failed to open MP3 file: %w", err)
+	}
+	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",
+		PictureType: id3v2.PTFrontCover,
+		Description: "Front cover",
+		Picture:     artwork,
+	}
+	tag.AddAttachedPicture(pic)
+
+	if err := tag.Save(); err != nil {
+		return fmt.Errorf("failed to save MP3 tags: %w", err)
+	}
+
+	return nil
+}
+
+// EmbedLyricsOnlyMP3 adds lyrics to an MP3 file using ID3v2 USLT frame
+func EmbedLyricsOnlyMP3(filepath string, lyrics string) error {
+	if lyrics == "" {
+		return nil
+	}
+
+	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
+		Language:          "eng",
+		ContentDescriptor: "", // Empty descriptor for better compatibility
+		Lyrics:            lyrics,
+	}
+	tag.AddUnsynchronisedLyricsFrame(usltFrame)
+
+	if err := tag.Save(); err != nil {
+		return fmt.Errorf("failed to save MP3 tags: %w", err)
+	}
+
+	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
+	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
+	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",
+		"-map_metadata", "0",
+		"-metadata", "lyrics-eng="+lyrics,
+		"-metadata", "lyrics="+lyrics,
+		"-codec", "copy",
+		"-f", "ipod", // Explicitly specify M4A/iPod format
+		"-y", // Overwrite
+		tmpOutputFile,
+	)
+
+	// Hide console window on Windows
+	setHideWindow(cmd)
+
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		fmt.Printf("[FFmpeg] Error embedding lyrics to M4A: %s\n", string(output))
+		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)
+	}
+
+	fmt.Printf("[FFmpeg] Lyrics embedded to M4A successfully: %d characters\n", len(lyrics))
+	return nil
+}
+
+// EmbedLyricsOnlyUniversal embeds lyrics to MP3, FLAC, or M4A file
+func EmbedLyricsOnlyUniversal(filepath string, lyrics string) error {
+	if lyrics == "" {
+		return nil
+	}
+
+	ext := strings.ToLower(pathfilepath.Ext(filepath))
+	switch ext {
+	case ".mp3":
+		return EmbedLyricsOnlyMP3(filepath, lyrics)
+	case ".flac":
+		return EmbedLyricsOnly(filepath, lyrics)
+	case ".m4a":
+		return embedLyricsToM4A(filepath, lyrics)
+	default:
+		return fmt.Errorf("unsupported file format for lyrics embedding: %s", ext)
+	}
+}
+
+// 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"`
+}
+
+// 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)
+	}
+
+	wg.Wait()
+	return results
+}
+
+// buildISRCIndex scans a directory and builds a map of ISRC -> file path
+func buildISRCIndex(outputDir string) map[string]string {
+	index := make(map[string]string)
+
+	// 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
+		}
+
+		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
+}
@@ -0,0 +1,459 @@
+package backend
+
+import (
+	"fmt"
+	"io"
+	"sync"
+	"time"
+)
+
+// DownloadStatus represents the status of a download item
+type DownloadStatus string
+
+const (
+	StatusQueued      DownloadStatus = "queued"
+	StatusDownloading DownloadStatus = "downloading"
+	StatusCompleted   DownloadStatus = "completed"
+	StatusFailed      DownloadStatus = "failed"
+	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"`
+	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
+}
+
+// Global progress tracker
+var (
+	currentProgress     float64
+	currentProgressLock sync.RWMutex
+	isDownloading       bool
+	downloadingLock     sync.RWMutex
+	currentSpeed        float64
+	speedLock           sync.RWMutex
+
+	// Download queue tracking
+	downloadQueue       []DownloadItem
+	downloadQueueLock   sync.RWMutex
+	currentItemID       string
+	currentItemLock     sync.RWMutex
+	totalDownloaded     float64
+	totalDownloadedLock sync.RWMutex
+	sessionStartTime    int64
+	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
+	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
+	downloadingLock.RUnlock()
+
+	currentProgressLock.RLock()
+	progress := currentProgress
+	currentProgressLock.RUnlock()
+
+	speedLock.RLock()
+	speed := currentSpeed
+	speedLock.RUnlock()
+
+	return ProgressInfo{
+		IsDownloading: downloading,
+		MBDownloaded:  progress,
+		SpeedMBps:     speed,
+	}
+}
+
+// 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
+	lastPrinted int64
+	startTime   int64
+	lastTime    int64
+	lastBytes   int64
+	itemID      string // Track which download item this belongs to
+}
+
+func NewProgressWriter(writer io.Writer) *ProgressWriter {
+	now := getCurrentTimeMillis()
+	return &ProgressWriter{
+		writer:      writer,
+		total:       0,
+		lastPrinted: 0,
+		startTime:   now,
+		lastTime:    now,
+		lastBytes:   0,
+		itemID:      "",
+	}
+}
+
+// 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
+	return pw
+}
+
+func getCurrentTimeMillis() int64 {
+	return time.Now().UnixMilli()
+}
+
+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
+		bytesDiff := float64(pw.total - pw.lastBytes)
+
+		var speedMBps float64
+		if timeDiff > 0 {
+			speedMBps = (bytesDiff / (1024 * 1024)) / timeDiff
+			SetDownloadSpeed(speedMBps)
+			fmt.Printf("\rDownloaded: %.2f MB (%.2f MB/s)", mbDownloaded, speedMBps)
+		} else {
+			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)
+		}
+
+		pw.lastPrinted = pw.total
+		pw.lastTime = now
+		pw.lastBytes = pw.total
+	}
+
+	return n, err
+}
+
+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) {
+	downloadQueueLock.Lock()
+	defer downloadQueueLock.Unlock()
+
+	item := DownloadItem{
+		ID:         id,
+		TrackName:  trackName,
+		ArtistName: artistName,
+		AlbumName:  albumName,
+		ISRC:       isrc,
+		Status:     StatusQueued,
+		Progress:   0,
+		TotalSize:  0,
+		Speed:      0,
+		StartTime:  0,
+		EndTime:    0,
+	}
+
+	downloadQueue = append(downloadQueue, item)
+
+	// Initialize session start time if this is the first item
+	sessionStartLock.Lock()
+	if sessionStartTime == 0 {
+		sessionStartTime = time.Now().Unix()
+	}
+	sessionStartLock.Unlock()
+}
+
+// StartDownloadItem marks an item as currently downloading
+func StartDownloadItem(id string) {
+	downloadQueueLock.Lock()
+	defer downloadQueueLock.Unlock()
+
+	for i := range downloadQueue {
+		if downloadQueue[i].ID == id {
+			downloadQueue[i].Status = StatusDownloading
+			downloadQueue[i].StartTime = time.Now().Unix()
+			downloadQueue[i].Progress = 0
+			break
+		}
+	}
+
+	currentItemLock.Lock()
+	currentItemID = id
+	currentItemLock.Unlock()
+}
+
+// UpdateItemProgress updates the progress of the current download item
+func UpdateItemProgress(id string, progress, speed float64) {
+	downloadQueueLock.Lock()
+	defer downloadQueueLock.Unlock()
+
+	for i := range downloadQueue {
+		if downloadQueue[i].ID == id {
+			downloadQueue[i].Progress = progress
+			downloadQueue[i].Speed = speed
+			break
+		}
+	}
+}
+
+// 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()
+
+	for i := range downloadQueue {
+		if downloadQueue[i].ID == id {
+			downloadQueue[i].Status = StatusCompleted
+			downloadQueue[i].EndTime = time.Now().Unix()
+			downloadQueue[i].FilePath = filePath
+			downloadQueue[i].Progress = finalSize
+			downloadQueue[i].TotalSize = finalSize
+
+			// Add to total downloaded
+			totalDownloadedLock.Lock()
+			totalDownloaded += finalSize
+			totalDownloadedLock.Unlock()
+			break
+		}
+	}
+}
+
+// FailDownloadItem marks an item as failed
+func FailDownloadItem(id, errorMsg string) {
+	downloadQueueLock.Lock()
+	defer downloadQueueLock.Unlock()
+
+	for i := range downloadQueue {
+		if downloadQueue[i].ID == id {
+			downloadQueue[i].Status = StatusFailed
+			downloadQueue[i].EndTime = time.Now().Unix()
+			downloadQueue[i].ErrorMessage = errorMsg
+			break
+		}
+	}
+}
+
+// SkipDownloadItem marks an item as skipped (already exists)
+func SkipDownloadItem(id, filePath string) {
+	downloadQueueLock.Lock()
+	defer downloadQueueLock.Unlock()
+
+	for i := range downloadQueue {
+		if downloadQueue[i].ID == id {
+			downloadQueue[i].Status = StatusSkipped
+			downloadQueue[i].EndTime = time.Now().Unix()
+			downloadQueue[i].FilePath = filePath
+			break
+		}
+	}
+}
+
+// GetDownloadQueue returns the complete download queue state
+func GetDownloadQueue() DownloadQueueInfo {
+	// Auto-reset session if all downloads are complete
+	ResetSessionIfComplete()
+
+	downloadQueueLock.RLock()
+	defer downloadQueueLock.RUnlock()
+
+	downloadingLock.RLock()
+	downloading := isDownloading
+	downloadingLock.RUnlock()
+
+	speedLock.RLock()
+	speed := currentSpeed
+	speedLock.RUnlock()
+
+	totalDownloadedLock.RLock()
+	total := totalDownloaded
+	totalDownloadedLock.RUnlock()
+
+	sessionStartLock.RLock()
+	sessionStart := sessionStartTime
+	sessionStartLock.RUnlock()
+
+	// Count statuses
+	var queued, completed, failed, skipped int
+	for _, item := range downloadQueue {
+		switch item.Status {
+		case StatusQueued:
+			queued++
+		case StatusCompleted:
+			completed++
+		case StatusFailed:
+			failed++
+		case StatusSkipped:
+			skipped++
+		}
+	}
+
+	// Create a copy of the queue
+	queueCopy := make([]DownloadItem, len(downloadQueue))
+	copy(queueCopy, downloadQueue)
+
+	return DownloadQueueInfo{
+		IsDownloading:    downloading,
+		Queue:            queueCopy,
+		CurrentSpeed:     speed,
+		TotalDownloaded:  total,
+		SessionStartTime: sessionStart,
+		QueuedCount:      queued,
+		CompletedCount:   completed,
+		FailedCount:      failed,
+		SkippedCount:     skipped,
+	}
+}
+
+// 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 {
+			newQueue = append(newQueue, item)
+		}
+	}
+	downloadQueue = newQueue
+}
+
+// ClearAllDownloads clears the entire queue and resets session stats
+func ClearAllDownloads() {
+	downloadQueueLock.Lock()
+	downloadQueue = []DownloadItem{}
+	downloadQueueLock.Unlock()
+
+	totalDownloadedLock.Lock()
+	totalDownloaded = 0
+	totalDownloadedLock.Unlock()
+
+	sessionStartLock.Lock()
+	sessionStartTime = 0
+	sessionStartLock.Unlock()
+
+	currentItemLock.Lock()
+	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()
+
+	for i := range downloadQueue {
+		if downloadQueue[i].Status == StatusQueued {
+			downloadQueue[i].Status = StatusSkipped
+			downloadQueue[i].EndTime = time.Now().Unix()
+			downloadQueue[i].ErrorMessage = "Cancelled"
+		}
+	}
+}
+
+// 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
+	for _, item := range downloadQueue {
+		if item.Status == StatusQueued || item.Status == StatusDownloading {
+			hasActiveOrQueued = true
+			break
+		}
+	}
+	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
+		sessionStartLock.Unlock()
+
+		totalDownloadedLock.Lock()
+		totalDownloaded = 0
+		totalDownloadedLock.Unlock()
+	}
+}
@@ -0,0 +1,441 @@
+package backend
+
+import (
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+	"time"
+)
+
+type QobuzDownloader struct {
+	client *http.Client
+	appID  string
+}
+
+type QobuzSearchResponse struct {
+	Query  string `json:"query"`
+	Tracks struct {
+		Limit  int          `json:"limit"`
+		Offset int          `json:"offset"`
+		Total  int          `json:"total"`
+		Items  []QobuzTrack `json:"items"`
+	} `json:"tracks"`
+}
+
+type QobuzTrack struct {
+	ID                  int64   `json:"id"`
+	Title               string  `json:"title"`
+	Version             string  `json:"version"`
+	Duration            int     `json:"duration"`
+	TrackNumber         int     `json:"track_number"`
+	MediaNumber         int     `json:"media_number"`
+	ISRC                string  `json:"isrc"`
+	Copyright           string  `json:"copyright"`
+	MaximumBitDepth     int     `json:"maximum_bit_depth"`
+	MaximumSamplingRate float64 `json:"maximum_sampling_rate"`
+	Hires               bool    `json:"hires"`
+	HiresStreamable     bool    `json:"hires_streamable"`
+	ReleaseDateOriginal string  `json:"release_date_original"`
+	Performer           struct {
+		Name string `json:"name"`
+		ID   int64  `json:"id"`
+	} `json:"performer"`
+	Album struct {
+		Title string `json:"title"`
+		ID    string `json:"id"`
+		Image struct {
+			Small     string `json:"small"`
+			Thumbnail string `json:"thumbnail"`
+			Large     string `json:"large"`
+		} `json:"image"`
+		Artist struct {
+			Name string `json:"name"`
+			ID   int64  `json:"id"`
+		} `json:"artist"`
+		Label struct {
+			Name string `json:"name"`
+		} `json:"label"`
+	} `json:"album"`
+}
+
+type QobuzStreamResponse struct {
+	URL string `json:"url"`
+}
+
+func NewQobuzDownloader() *QobuzDownloader {
+	return &QobuzDownloader{
+		client: &http.Client{
+			Timeout: 60 * time.Second,
+		},
+		appID: "798273057",
+	}
+}
+
+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)
+
+	resp, err := q.client.Get(url)
+	if err != nil {
+		return nil, fmt.Errorf("failed to search track: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		return nil, fmt.Errorf("API returned status %d", resp.StatusCode)
+	}
+
+	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)
+	}
+
+	if len(body) == 0 {
+		return nil, fmt.Errorf("API returned empty response")
+	}
+
+	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] + "..."
+		}
+		return nil, fmt.Errorf("failed to decode response: %w (response: %s)", err, bodyStr)
+	}
+
+	if len(searchResp.Tracks.Items) == 0 {
+		return nil, fmt.Errorf("track not found for ISRC: %s", isrc)
+	}
+
+	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
+	}
+
+	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()
+	}
+
+	// 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)
+
+	resp, err = q.client.Get(fallbackURL)
+	if err != nil {
+		return "", fmt.Errorf("failed to get download URL: %w", 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)
+	}
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", fmt.Errorf("failed to read response body: %w", err)
+	}
+
+	if len(body) == 0 {
+		return "", fmt.Errorf("API returned empty response")
+	}
+
+	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] + "..."
+		}
+		return "", fmt.Errorf("failed to decode response: %w (response: %s)", err, bodyStr)
+	}
+
+	if streamResp.URL == "" {
+		return "", fmt.Errorf("no download URL available")
+	}
+
+	fmt.Printf("Got download URL from fallback API\n")
+	return streamResp.URL, nil
+}
+
+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
+	}
+
+	resp, err := downloadClient.Get(url)
+	if err != nil {
+		return fmt.Errorf("failed to download file: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		return fmt.Errorf("download failed with status %d", resp.StatusCode)
+	}
+
+	fmt.Printf("Creating file: %s\n", filepath)
+	out, err := os.Create(filepath)
+	if err != nil {
+		return fmt.Errorf("failed to create file: %w", err)
+	}
+	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
+}
+
+func (q *QobuzDownloader) DownloadCoverArt(coverURL, filepath string) error {
+	if coverURL == "" {
+		return fmt.Errorf("no cover URL provided")
+	}
+
+	resp, err := q.client.Get(coverURL)
+	if err != nil {
+		return fmt.Errorf("failed to download cover: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		return fmt.Errorf("cover download failed with status %d", resp.StatusCode)
+	}
+
+	out, err := os.Create(filepath)
+	if err != nil {
+		return fmt.Errorf("failed to create cover file: %w", err)
+	}
+	defer out.Close()
+
+	_, err = io.Copy(out, resp.Body)
+	return err
+}
+
+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)
+		filename = strings.ReplaceAll(filename, "{artist}", artist)
+		filename = strings.ReplaceAll(filename, "{album}", album)
+		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"
+			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)
+		}
+	}
+
+	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)
+
+	// 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)
+	if err != nil {
+		return "", err
+	}
+
+	// All metadata from Spotify - no fallback to Qobuz
+	artists := spotifyArtistName
+	trackTitle := spotifyTrackName
+	albumTitle := spotifyAlbumName
+
+	fmt.Printf("Found track: %s - %s\n", artists, trackTitle)
+	fmt.Printf("Album: %s\n", albumTitle)
+
+	qualityInfo := "Standard"
+	if track.Hires {
+		qualityInfo = fmt.Sprintf("Hi-Res (%d-bit / %.1f kHz)", track.MaximumBitDepth, track.MaximumSamplingRate)
+	}
+	fmt.Printf("Quality: %s\n", qualityInfo)
+
+	fmt.Println("Getting download URL...")
+	downloadURL, err := q.GetDownloadURL(track.ID, quality)
+	if err != nil {
+		return "", fmt.Errorf("failed to get download URL: %w", err)
+	}
+
+	if downloadURL == "" {
+		return "", fmt.Errorf("received empty download URL")
+	}
+
+	// Show partial URL for security
+	urlPreview := downloadURL
+	if len(downloadURL) > 60 {
+		urlPreview = downloadURL[:60] + "..."
+	}
+	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
+	}
+
+	// Build filename based on format settings (use Spotify track number)
+	filename := buildQobuzFilename(safeTitle, safeArtist, safeAlbum, safeAlbumArtist, spotifyReleaseDate, spotifyTrackNumber, spotifyDiscNumber, filenameFormat, includeTrackNumber, position, useAlbumTrackNumber)
+	filepath := filepath.Join(outputDir, filename)
+
+	if fileInfo, err := os.Stat(filepath); err == nil && fileInfo.Size() > 0 {
+		fmt.Printf("File already exists: %s (%.2f MB)\n", filepath, float64(fileInfo.Size())/(1024*1024))
+		return "EXISTS:" + filepath, nil
+	}
+
+	fmt.Printf("Downloading FLAC file to: %s\n", filepath)
+	if err := q.DownloadFile(downloadURL, filepath); err != nil {
+		return "", fmt.Errorf("failed to download file: %w", err)
+	}
+
+	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()
+		if err := coverClient.DownloadCoverToPath(spotifyCoverURL, coverPath, embedMaxQualityCover); err != nil {
+			fmt.Printf("Warning: Failed to download Spotify cover: %v\n", err)
+			coverPath = ""
+		} else {
+			defer os.Remove(coverPath)
+			fmt.Println("Spotify cover downloaded")
+		}
+	}
+
+	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
+	}
+
+	// ALL metadata from Spotify
+	metadata := Metadata{
+		Title:       trackTitle,
+		Artist:      artists,
+		Album:       albumTitle,
+		AlbumArtist: spotifyAlbumArtist,
+		Date:        spotifyReleaseDate, // Recorded date (full date YYYY-MM-DD)
+		TrackNumber: trackNumberToEmbed,
+		TotalTracks: spotifyTotalTracks, // Total tracks in album from Spotify
+		DiscNumber:  spotifyDiscNumber,  // Disc number from Spotify
+		ISRC:        isrc,               // ISRC from Spotify (passed as parameter)
+		Description: "https://github.com/afkarxyz/SpotiFLAC",
+	}
+
+	if err := EmbedMetadata(filepath, metadata, coverPath); err != nil {
+		return "", fmt.Errorf("failed to embed metadata: %w", err)
+	}
+
+	fmt.Println("Metadata embedded successfully!")
+	return filepath, nil
+}
@@ -0,0 +1,222 @@
+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)
+}
@@ -0,0 +1,328 @@
+package backend
+
+import (
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"time"
+)
+
+type SongLinkClient struct {
+	client           *http.Client
+	lastAPICallTime  time.Time
+	apiCallCount     int
+	apiCallResetTime time.Time
+}
+
+type SongLinkURLs struct {
+	TidalURL  string `json:"tidal_url"`
+	AmazonURL string `json:"amazon_url"`
+}
+
+// TrackAvailability represents the availability of a track on different platforms
+type TrackAvailability struct {
+	SpotifyID string `json:"spotify_id"`
+	Tidal     bool   `json:"tidal"`
+	Amazon    bool   `json:"amazon"`
+	Qobuz     bool   `json:"qobuz"`
+	TidalURL  string `json:"tidal_url,omitempty"`
+	AmazonURL string `json:"amazon_url,omitempty"`
+	QobuzURL  string `json:"qobuz_url,omitempty"`
+}
+
+func NewSongLinkClient() *SongLinkClient {
+	return &SongLinkClient{
+		client: &http.Client{
+			Timeout: 30 * time.Second,
+		},
+		apiCallResetTime: time.Now(),
+	}
+}
+
+func (s *SongLinkClient) GetAllURLsFromSpotify(spotifyTrackID string) (*SongLinkURLs, error) {
+	// Rate limiting: max 10 requests per minute (song.link API limit)
+	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 {
+			fmt.Printf("Rate limit reached, waiting %v...\n", waitTime.Round(time.Second))
+			time.Sleep(waitTime)
+			s.apiCallCount = 0
+			s.apiCallResetTime = time.Now()
+		}
+	}
+
+	// Add delay between requests (7 seconds to be safe)
+	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)
+		}
+	}
+
+	// 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))
+
+	req, err := http.NewRequest("GET", apiURL, nil)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create request: %w", err)
+	}
+
+	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++ {
+		resp, err = s.client.Do(req)
+		if err != nil {
+			return nil, fmt.Errorf("failed to get URLs: %w", err)
+		}
+
+		// Update rate limit tracking
+		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 nil, fmt.Errorf("API rate limit exceeded after %d retries", maxRetries)
+		}
+
+		if resp.StatusCode != 200 {
+			resp.Body.Close()
+			return nil, 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"`
+	}
+	// 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)
+	}
+
+	if len(body) == 0 {
+		return nil, fmt.Errorf("API returned empty response")
+	}
+
+	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] + "..."
+		}
+		return nil, fmt.Errorf("failed to decode response: %w (response: %s)", err, bodyStr)
+	}
+
+	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 urls.TidalURL == "" && urls.AmazonURL == "" {
+		return nil, fmt.Errorf("no streaming URLs found")
+	}
+
+	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)
+	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 {
+			fmt.Printf("Rate limit reached, waiting %v...\n", waitTime.Round(time.Second))
+			time.Sleep(waitTime)
+			s.apiCallCount = 0
+			s.apiCallResetTime = time.Now()
+		}
+	}
+
+	// Add delay between requests (7 seconds to be safe)
+	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)
+		}
+	}
+
+	// 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))
+
+	req, err := http.NewRequest("GET", apiURL, nil)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create request: %w", err)
+	}
+
+	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++ {
+		resp, err = s.client.Do(req)
+		if err != nil {
+			return nil, fmt.Errorf("failed to check availability: %w", err)
+		}
+
+		// Update rate limit tracking
+		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 nil, fmt.Errorf("API rate limit exceeded after %d retries", maxRetries)
+		}
+
+		if resp.StatusCode != 200 {
+			resp.Body.Close()
+			return nil, 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"`
+	}
+	// 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)
+	}
+
+	if len(body) == 0 {
+		return nil, fmt.Errorf("API returned empty response")
+	}
+
+	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] + "..."
+		}
+		return nil, fmt.Errorf("failed to decode response: %w (response: %s)", err, bodyStr)
+	}
+
+	availability := &TrackAvailability{
+		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
+	}
+
+	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)
+
+	resp, err := client.Get(searchURL)
+	if err != nil {
+		return false
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		return false
+	}
+
+	var searchResp struct {
+		Tracks struct {
+			Total int `json:"total"`
+		} `json:"tracks"`
+	}
+	if err := json.NewDecoder(resp.Body).Decode(&searchResp); err != nil {
+		return false
+	}
+
+	return searchResp.Tracks.Total > 0
+}
@@ -0,0 +1,195 @@
+package backend
+
+import (
+	"fmt"
+	"math"
+	"math/cmplx"
+
+	"github.com/mewkiz/flac"
+)
+
+// SpectrumData contains frequency spectrum information
+type SpectrumData struct {
+	TimeSlices []TimeSlice `json:"time_slices"`
+	SampleRate int         `json:"sample_rate"`
+	FreqBins   int         `json:"freq_bins"`
+	Duration   float64     `json:"duration"`
+	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)
+	}
+	defer stream.Close()
+
+	info := stream.Info
+	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)
+	}
+
+	if len(samples) == 0 {
+		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
+
+	// 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])
+			}
+			sample /= float64(channels)
+
+			allSamples = append(allSamples, sample)
+
+			// Limit sample count
+			if len(allSamples) >= maxSamples {
+				return allSamples, nil
+			}
+		}
+	}
+
+	return allSamples, nil
+}
+
+// calculateSpectrum performs FFT analysis on audio samples
+func calculateSpectrum(samples []float64, sampleRate int) *SpectrumData {
+	fftSize := 8192
+	numTimeSlices := 300
+
+	duration := float64(len(samples)) / float64(sampleRate)
+
+	samplesPerSlice := len(samples) / numTimeSlices
+	if samplesPerSlice < fftSize {
+		samplesPerSlice = fftSize
+		numTimeSlices = len(samples) / fftSize
+	}
+
+	timeSlices := make([]TimeSlice, 0, numTimeSlices)
+	freqBins := fftSize / 2
+	maxFreq := float64(sampleRate) / 2.0
+
+	for i := 0; i < numTimeSlices; i++ {
+		startIdx := i * samplesPerSlice
+		if startIdx+fftSize > len(samples) {
+			break
+		}
+
+		window := samples[startIdx : startIdx+fftSize]
+
+		windowedSamples := applyHannWindow(window)
+
+		spectrum := fft(windowedSamples)
+
+		magnitudes := make([]float64, freqBins)
+		for j := 0; j < freqBins; j++ {
+			magnitude := cmplx.Abs(spectrum[j])
+
+			if magnitude < 1e-10 {
+				magnitude = 1e-10
+			}
+			magnitudes[j] = 20 * math.Log10(magnitude)
+		}
+
+		timeSlice := TimeSlice{
+			Time:       float64(startIdx) / float64(sampleRate),
+			Magnitudes: magnitudes,
+		}
+		timeSlices = append(timeSlices, timeSlice)
+	}
+
+	return &SpectrumData{
+		TimeSlices: timeSlices,
+		SampleRate: sampleRate,
+		FreqBins:   freqBins,
+		Duration:   duration,
+		MaxFreq:    maxFreq,
+	}
+}
+
+// applyHannWindow applies Hann window to reduce spectral leakage
+func applyHannWindow(samples []float64) []float64 {
+	n := len(samples)
+	windowed := make([]float64, n)
+
+	for i := 0; i < n; i++ {
+		window := 0.5 * (1.0 - math.Cos(2.0*math.Pi*float64(i)/float64(n-1)))
+		windowed[i] = samples[i] * window
+	}
+
+	return windowed
+}
+
+// fft performs Fast Fourier Transform using Cooley-Tukey algorithm
+func fft(samples []float64) []complex128 {
+	n := len(samples)
+
+	x := make([]complex128, n)
+	for i := 0; i < n; i++ {
+		x[i] = complex(samples[i], 0)
+	}
+
+	return fftRecursive(x)
+}
+
+// fftRecursive performs recursive FFT
+func fftRecursive(x []complex128) []complex128 {
+	n := len(x)
+
+	if n <= 1 {
+		return x
+	}
+
+	even := make([]complex128, n/2)
+	odd := make([]complex128, n/2)
+
+	for i := 0; i < n/2; i++ {
+		even[i] = x[2*i]
+		odd[i] = x[2*i+1]
+	}
+
+	evenFFT := fftRecursive(even)
+	oddFFT := fftRecursive(odd)
+
+	result := make([]complex128, n)
+	for k := 0; k < n/2; k++ {
+		t := cmplx.Exp(complex(0, -2*math.Pi*float64(k)/float64(n))) * oddFFT[k]
+		result[k] = evenFFT[k] + t
+		result[k+n/2] = evenFFT[k] - t
+	}
+
+	return result
+}
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-    </g>
-    <path fill="#309e3a" d="m301.8 204.5 2.3-9.8 7.2 1.7-.3 1.6-5.3-1.2-.5 2.2 4.9 1.1-.4 1.7-4.9-1.2-.6 2.7 5.5 1.3-.4 1.6z"/>
-  </g>
-</svg>
@@ -1,241 +0,0 @@
-import requests
-import asyncio
-import os
-import sys
-from mutagen.flac import FLAC
-from random import randrange
-
-def get_random_user_agent():
-    return f"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_{randrange(11, 15)}_{randrange(4, 9)}) AppleWebKit/{randrange(530, 537)}.{randrange(30, 37)} (KHTML, like Gecko) Chrome/{randrange(80, 105)}.0.{randrange(3000, 4500)}.{randrange(60, 125)} Safari/{randrange(530, 537)}.{randrange(30, 36)}"
-
-class DeezerDownloader:
-    def __init__(self):
-        self.session = requests.Session()
-        self.session.headers.update({
-            'User-Agent': get_random_user_agent()
-        })
-        self.progress_callback = None
-    
-    def set_progress_callback(self, callback):
-        self.progress_callback = callback
-    
-    def get_track_by_isrc(self, isrc):
-        try:
-            url = f"https://api.deezer.com/2.0/track/isrc:{isrc}"
-            response = self.session.get(url)
-            response.raise_for_status()
-            
-            data = response.json()
-            
-            if 'error' in data:
-                print(f"Error from Deezer API: {data['error']['message']}")
-                return None
-            
-            return data
-        except requests.exceptions.RequestException as e:
-            print(f"Error fetching track data: {e}")
-            return None
-    
-    def extract_metadata(self, track_data):
-        metadata = {}
-        
-        metadata['title'] = track_data.get('title', '')
-        metadata['title_short'] = track_data.get('title_short', '')
-        metadata['duration'] = track_data.get('duration', 0)
-        metadata['track_position'] = track_data.get('track_position', 1)
-        metadata['disk_number'] = track_data.get('disk_number', 1)
-        metadata['isrc'] = track_data.get('isrc', '')
-        metadata['release_date'] = track_data.get('release_date', '')
-        metadata['explicit_lyrics'] = track_data.get('explicit_lyrics', False)
-        
-        if 'artist' in track_data:
-            metadata['artist'] = track_data['artist'].get('name', '')
-            metadata['artist_id'] = track_data['artist'].get('id', '')
-        
-        if 'contributors' in track_data:
-            artists = []
-            for contributor in track_data['contributors']:
-                if contributor.get('role') == 'Main':
-                    artists.append(contributor.get('name', ''))
-            metadata['artists'] = ', '.join(artists) if artists else metadata.get('artist', '')
-        
-        if 'album' in track_data:
-            album = track_data['album']
-            metadata['album'] = album.get('title', '')
-            metadata['album_id'] = album.get('id', '')
-            metadata['cover_url'] = album.get('cover_xl', album.get('cover_big', ''))
-            metadata['cover_md5'] = album.get('md5_image', '')
-        
-        metadata['deezer_link'] = track_data.get('link', '')
-        metadata['preview_url'] = track_data.get('preview', '')
-        
-        return metadata
-    
-    def download_cover_art(self, cover_url, filename):
-        if not cover_url:
-            return None
-        
-        try:
-            response = self.session.get(cover_url)
-            response.raise_for_status()
-            
-            cover_path = f"{filename}_cover.jpg"
-            with open(cover_path, 'wb') as f:
-                f.write(response.content)
-            
-            return cover_path
-        except Exception as e:
-            print(f"Error downloading cover art: {e}")
-            return None
-    
-    def embed_metadata(self, file_path, metadata, cover_path=None):
-        try:
-            audio = FLAC(file_path)
-            
-            audio.clear()
-            
-            if metadata.get('title'):
-                audio['TITLE'] = metadata['title']
-            if metadata.get('artists'):
-                audio['ARTIST'] = metadata['artists']
-            elif metadata.get('artist'):
-                audio['ARTIST'] = metadata['artist']
-            if metadata.get('album'):
-                audio['ALBUM'] = metadata['album']
-            if metadata.get('release_date'):
-                audio['DATE'] = metadata['release_date']
-            if metadata.get('track_position'):
-                audio['TRACKNUMBER'] = str(metadata['track_position'])
-            if metadata.get('disk_number'):
-                audio['DISCNUMBER'] = str(metadata['disk_number'])
-            if metadata.get('isrc'):
-                audio['ISRC'] = metadata['isrc']
-            
-            if cover_path and os.path.exists(cover_path):
-                with open(cover_path, 'rb') as f:
-                    cover_data = f.read()
-                
-                from mutagen.flac import Picture
-                picture = Picture()
-                picture.type = 3
-                picture.mime = 'image/jpeg'
-                picture.desc = 'Cover'
-                picture.data = cover_data
-                audio.add_picture(picture)
-            
-            audio.save()
-            print(f"Metadata embedded successfully in {file_path}")
-            
-        except Exception as e:
-            print(f"Error embedding metadata: {e}")
-    
-    async def download_by_isrc(self, isrc, output_dir="."):
-        print(f"Fetching track info for ISRC: {isrc}")
-        
-        track_data = self.get_track_by_isrc(isrc)
-        if not track_data:
-            print("Failed to get track data from Deezer API")
-            return False
-        
-        metadata = self.extract_metadata(track_data)
-        print(f"Found track: {metadata.get('artists', 'Unknown')} - {metadata.get('title', 'Unknown')}")
-        
-        track_id = track_data.get('id')
-        if not track_id:
-            print("No track ID found in Deezer API response")
-            return False
-        
-        print(f"Using track ID: {track_id}")
-        
-        api_url = f"https://api.deezmate.com/dl/{track_id}"
-        print(f"Requesting download links from: {api_url}")
-        
-        try:
-            response = self.session.get(api_url)
-            response.raise_for_status()
-            api_data = response.json()
-            
-            if not api_data.get('success'):
-                print("API request failed")
-                return False
-            
-            links = api_data.get('links', {})
-            flac_url = links.get('flac')
-            
-            if not flac_url:
-                print("No FLAC download link found in API response")
-                return False
-            
-            print(f"Successfully obtained FLAC download URL")
-            
-        except Exception as e:
-            print(f"Error getting download URL from API: {e}")
-            return False
-        
-        print("Downloading FLAC file...")
-        try:
-            response = self.session.get(flac_url)
-            response.raise_for_status()
-            
-            safe_title = "".join(c for c in metadata.get('title', 'Unknown') if c.isalnum() or c in (' ', '-', '_')).rstrip()
-            safe_artist = "".join(c for c in metadata.get('artists', 'Unknown') if c.isalnum() or c in (' ', '-', '_')).rstrip()
-            filename = f"{safe_artist} - {safe_title}.flac"
-            file_path = os.path.join(output_dir, filename)
-            
-            with open(file_path, 'wb') as f:
-                f.write(response.content)
-            
-            downloaded = len(response.content)
-            print(f"File size: {downloaded} bytes ({downloaded / (1024*1024):.2f} MB)")
-            
-            if self.progress_callback:
-                self.progress_callback(downloaded, downloaded)
-            
-            print(f"Downloaded: {file_path}")
-            
-            cover_path = None
-            if metadata.get('cover_url'):
-                print("Downloading cover art...")
-                cover_path = self.download_cover_art(metadata['cover_url'], 
-                                                   os.path.join(output_dir, f"{safe_artist} - {safe_title}"))
-            
-            print("Embedding metadata...")
-            self.embed_metadata(file_path, metadata, cover_path)
-            
-            if cover_path and os.path.exists(cover_path):
-                os.remove(cover_path)
-            
-            print(f"Successfully downloaded and tagged: {filename}")
-            return True
-            
-        except Exception as e:
-            print(f"Error downloading file: {e}")
-            return False
-
-async def main():
-    print("=== DeezerDL - Deezer Downloader ===")
-    downloader = DeezerDownloader()
-    
-    isrc = "USAT22409172"
-    output_dir = "."
-    
-    success = await downloader.download_by_isrc(isrc, output_dir)
-    if success:
-        print("Download completed successfully!")
-    else:
-        print("Download failed!")
-
-if __name__ == "__main__":
-    try:
-        import sys
-        if sys.platform == "win32":
-            import os
-            os.system("chcp 65001 > nul")
-            try:
-                sys.stdout.reconfigure(encoding='utf-8')
-            except:
-                pass
-    except:
-        pass
-        
-    asyncio.run(main())
@@ -1,28 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" id="flag-icons-eu" viewBox="0 0 640 480">
-  <defs>
-    <g id="eu-d">
-      <g id="eu-b">
-        <path id="eu-a" d="m0-1-.3 1 .5.1z"/>
-        <use xlink:href="#eu-a" transform="scale(-1 1)"/>
-      </g>
-      <g id="eu-c">
-        <use xlink:href="#eu-b" transform="rotate(72)"/>
-        <use xlink:href="#eu-b" transform="rotate(144)"/>
-      </g>
-      <use xlink:href="#eu-c" transform="scale(-1 1)"/>
-    </g>
-  </defs>
-  <path fill="#039" d="M0 0h640v480H0z"/>
-  <g fill="#fc0" transform="translate(320 242.3)scale(23.7037)">
-    <use xlink:href="#eu-d" width="100%" height="100%" y="-6"/>
-    <use xlink:href="#eu-d" width="100%" height="100%" y="6"/>
-    <g id="eu-e">
-      <use xlink:href="#eu-d" width="100%" height="100%" x="-6"/>
-      <use xlink:href="#eu-d" width="100%" height="100%" transform="rotate(-144 -2.3 -2.1)"/>
-      <use xlink:href="#eu-d" width="100%" height="100%" transform="rotate(144 -2.1 -2.3)"/>
-      <use xlink:href="#eu-d" width="100%" height="100%" transform="rotate(72 -4.7 -2)"/>
-      <use xlink:href="#eu-d" width="100%" height="100%" transform="rotate(72 -5 .5)"/>
-    </g>
-    <use xlink:href="#eu-e" width="100%" height="100%" transform="scale(-1 1)"/>
-  </g>
-</svg>
@@ -0,0 +1,24 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
@@ -0,0 +1,24 @@
+{
+  "$schema": "https://ui.shadcn.com/schema.json",
+  "style": "new-york",
+  "rsc": false,
+  "tsx": true,
+  "tailwind": {
+    "config": "",
+    "css": "src/index.css",
+    "baseColor": "neutral",
+    "cssVariables": true,
+    "prefix": ""
+  },
+  "iconLibrary": "lucide",
+  "aliases": {
+    "components": "@/components",
+    "utils": "@/lib/utils",
+    "ui": "@/components/ui",
+    "lib": "@/lib",
+    "hooks": "@/hooks"
+  },
+  "registries": {
+    "@lucide-animated": "https://lucide-animated.com/r/{name}.json"
+  }
+}
@@ -0,0 +1,23 @@
+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,
+    },
+  },
+])
@@ -0,0 +1,16 @@
+<!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>
@@ -0,0 +1,54 @@
+{
+  "name": "frontend",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc -b && vite build",
+    "postinstall": "node scripts/generate-icon.js",
+    "lint": "eslint .",
+    "preview": "vite preview",
+    "generate-icon": "node scripts/generate-icon.js"
+  },
+  "dependencies": {
+    "@radix-ui/react-checkbox": "^1.3.3",
+    "@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-progress": "^1.1.8",
+    "@radix-ui/react-select": "^2.2.6",
+    "@radix-ui/react-slot": "^1.2.4",
+    "@radix-ui/react-switch": "^1.2.6",
+    "@radix-ui/react-toggle": "^1.1.10",
+    "@radix-ui/react-toggle-group": "^1.1.11",
+    "@radix-ui/react-tooltip": "^1.2.8",
+    "@tailwindcss/vite": "^4.1.18",
+    "class-variance-authority": "^0.7.1",
+    "clsx": "^2.1.1",
+    "lucide-react": "^0.562.0",
+    "motion": "^12.23.26",
+    "next-themes": "^0.4.6",
+    "react": "^19.2.3",
+    "react-dom": "^19.2.3",
+    "sonner": "^2.0.7",
+    "tailwind-merge": "^3.4.0",
+    "tailwindcss": "^4.1.18"
+  },
+  "devDependencies": {
+    "@eslint/js": "^9.39.2",
+    "@types/node": "^25.0.3",
+    "@types/react": "^19.2.7",
+    "@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",
+    "sharp": "^0.34.5",
+    "tw-animate-css": "^1.4.0",
+    "typescript": "~5.9.3",
+    "typescript-eslint": "^8.50.1",
+    "vite": "^7.3.0"
+  }
+}
@@ -0,0 +1 @@
+0f9764c2a4597a75120d3e76c32af7a9
@@ -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>
@@ -0,0 +1,33 @@
+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);
+  }
+}
+
+generateIcon();
@@ -0,0 +1,719 @@
+import { useState, useEffect, useCallback } from "react";
+import { Button } from "@/components/ui/button";
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogTitle,
+} from "@/components/ui/dialog";
+import { Label } from "@/components/ui/label";
+import { Input } from "@/components/ui/input";
+import { Search, X, ArrowUp } from "lucide-react";
+import { TooltipProvider } from "@/components/ui/tooltip";
+import { getSettings, getSettingsWithDefaults, saveSettings, applyThemeMode, applyFont } from "@/lib/settings";
+import { applyTheme } from "@/lib/themes";
+import { OpenFolder } from "../wailsjs/go/main/App";
+import { toastWithSound as toast } from "@/lib/toast-with-sound";
+
+// Components
+import { TitleBar } from "@/components/TitleBar";
+import { Sidebar, type PageType } from "@/components/Sidebar";
+import { Header } from "@/components/Header";
+import { SearchBar } from "@/components/SearchBar";
+import { TrackInfo } from "@/components/TrackInfo";
+import { AlbumInfo } from "@/components/AlbumInfo";
+import { PlaylistInfo } from "@/components/PlaylistInfo";
+import { ArtistInfo } from "@/components/ArtistInfo";
+import { DownloadQueue } from "@/components/DownloadQueue";
+import { DownloadProgressToast } from "@/components/DownloadProgressToast";
+import { AudioAnalysisPage } from "@/components/AudioAnalysisPage";
+import { AudioConverterPage } from "@/components/AudioConverterPage";
+import { FileManagerPage } from "@/components/FileManagerPage";
+import { SettingsPage } from "@/components/SettingsPage";
+import { DebugLoggerPage } from "@/components/DebugLoggerPage";
+import type { HistoryItem } from "@/components/FetchHistory";
+
+// Hooks
+import { useDownload } from "@/hooks/useDownload";
+import { useMetadata } from "@/hooks/useMetadata";
+import { useLyrics } from "@/hooks/useLyrics";
+import { useCover } from "@/hooks/useCover";
+import { useAvailability } from "@/hooks/useAvailability";
+import { useDownloadQueueDialog } from "@/hooks/useDownloadQueueDialog";
+
+const HISTORY_KEY = "spotiflac_fetch_history";
+const MAX_HISTORY = 5;
+
+function App() {
+  const [currentPage, setCurrentPage] = useState<PageType>("main");
+  const [spotifyUrl, setSpotifyUrl] = useState("");
+  const [selectedTracks, setSelectedTracks] = useState<string[]>([]);
+  const [searchQuery, setSearchQuery] = useState("");
+  const [sortBy, setSortBy] = useState<string>("default");
+  const [currentListPage, setCurrentListPage] = useState(1);
+  const [hasUpdate, setHasUpdate] = useState(false);
+  const [releaseDate, setReleaseDate] = useState<string | null>(null);
+  const [fetchHistory, setFetchHistory] = useState<HistoryItem[]>([]);
+  const [isSearchMode, setIsSearchMode] = useState(false);
+  const [showScrollTop, setShowScrollTop] = useState(false);
+
+  const ITEMS_PER_PAGE = 50;
+  const CURRENT_VERSION = "7.0";
+
+  const download = useDownload();
+  const metadata = useMetadata();
+  const lyrics = useLyrics();
+  const cover = useCover();
+  const availability = useAvailability();
+  const downloadQueue = useDownloadQueueDialog();
+
+
+  useEffect(() => {
+    const initSettings = async () => {
+      const settings = getSettings();
+      applyThemeMode(settings.themeMode);
+      applyTheme(settings.theme);
+      applyFont(settings.fontFamily);
+
+      // Initialize default download path if not set
+      if (!settings.downloadPath) {
+        const settingsWithDefaults = await getSettingsWithDefaults();
+        saveSettings(settingsWithDefaults);
+      }
+    };
+    initSettings();
+
+    const mediaQuery = window.matchMedia("(prefers-color-scheme: dark)");
+    const handleChange = () => {
+      const currentSettings = getSettings();
+      if (currentSettings.themeMode === "auto") {
+        applyThemeMode("auto");
+        applyTheme(currentSettings.theme);
+      }
+    };
+
+    mediaQuery.addEventListener("change", handleChange);
+    checkForUpdates();
+    loadHistory();
+
+    // Scroll listener for jump to top button
+    const handleScroll = () => {
+      setShowScrollTop(window.scrollY > 300);
+    };
+    window.addEventListener("scroll", handleScroll);
+
+    return () => {
+      mediaQuery.removeEventListener("change", handleChange);
+      window.removeEventListener("scroll", handleScroll);
+    };
+  }, []);
+
+  const scrollToTop = useCallback(() => {
+    window.scrollTo({ top: 0, behavior: "smooth" });
+  }, []);
+
+  useEffect(() => {
+    setSelectedTracks([]);
+    setSearchQuery("");
+    download.resetDownloadedTracks();
+    lyrics.resetLyricsState();
+    cover.resetCoverState();
+    availability.clearAvailability();
+    setSortBy("default");
+    setCurrentListPage(1);
+  }, [metadata.metadata]);
+
+  const checkForUpdates = async () => {
+    try {
+      const response = await fetch(
+        "https://api.github.com/repos/afkarxyz/SpotiFLAC/releases/latest"
+      );
+      const data = await response.json();
+      const latestVersion = data.tag_name?.replace(/^v/, "") || "";
+
+      if (data.published_at) {
+        setReleaseDate(data.published_at);
+      }
+
+      if (latestVersion && latestVersion > CURRENT_VERSION) {
+        setHasUpdate(true);
+      }
+    } catch (err) {
+      console.error("Failed to check for updates:", err);
+    }
+  };
+
+  const loadHistory = () => {
+    try {
+      const saved = localStorage.getItem(HISTORY_KEY);
+      if (saved) {
+        setFetchHistory(JSON.parse(saved));
+      }
+    } catch (err) {
+      console.error("Failed to load history:", err);
+    }
+  };
+
+  const saveHistory = (history: HistoryItem[]) => {
+    try {
+      localStorage.setItem(HISTORY_KEY, JSON.stringify(history));
+    } catch (err) {
+      console.error("Failed to save history:", err);
+    }
+  };
+
+  const addToHistory = (item: Omit<HistoryItem, "id" | "timestamp">) => {
+    setFetchHistory((prev) => {
+      const filtered = prev.filter((h) => h.url !== item.url);
+      const newItem: HistoryItem = {
+        ...item,
+        id: crypto.randomUUID(),
+        timestamp: Date.now(),
+      };
+      const updated = [newItem, ...filtered].slice(0, MAX_HISTORY);
+      saveHistory(updated);
+      return updated;
+    });
+  };
+
+  const removeFromHistory = (id: string) => {
+    setFetchHistory((prev) => {
+      const updated = prev.filter((h) => h.id !== id);
+      saveHistory(updated);
+      return updated;
+    });
+  };
+
+  const handleHistorySelect = async (item: HistoryItem) => {
+    setSpotifyUrl(item.url);
+    const updatedUrl = await metadata.handleFetchMetadata(item.url);
+    if (updatedUrl) {
+      setSpotifyUrl(updatedUrl);
+    }
+  };
+
+  const handleFetchMetadata = async () => {
+    const updatedUrl = await metadata.handleFetchMetadata(spotifyUrl);
+    if (updatedUrl) {
+      setSpotifyUrl(updatedUrl);
+    }
+  };
+
+  useEffect(() => {
+    if (!metadata.metadata || !spotifyUrl) return;
+
+    let historyItem: Omit<HistoryItem, "id" | "timestamp"> | null = null;
+
+    if ("track" in metadata.metadata) {
+      const { track } = metadata.metadata;
+      historyItem = {
+        url: spotifyUrl,
+        type: "track",
+        name: track.name,
+        artist: track.artists,
+        image: track.images,
+      };
+    } else if ("album_info" in metadata.metadata) {
+      const { album_info } = metadata.metadata;
+      historyItem = {
+        url: spotifyUrl,
+        type: "album",
+        name: album_info.name,
+        artist: album_info.artists,
+        image: album_info.images,
+      };
+    } else if ("playlist_info" in metadata.metadata) {
+      const { playlist_info } = metadata.metadata;
+      historyItem = {
+        url: spotifyUrl,
+        type: "playlist",
+        name: playlist_info.owner.name,
+        artist: `${playlist_info.tracks.total} tracks • ${playlist_info.owner.display_name}`,
+        image: playlist_info.owner.images || "",
+      };
+    } else if ("artist_info" in metadata.metadata) {
+      const { artist_info } = metadata.metadata;
+      historyItem = {
+        url: spotifyUrl,
+        type: "artist",
+        name: artist_info.name,
+        artist: `${artist_info.total_albums} albums`,
+        image: artist_info.images,
+      };
+    }
+
+    if (historyItem) {
+      addToHistory(historyItem);
+    }
+  }, [metadata.metadata]);
+
+  const handleSearchChange = (value: string) => {
+    setSearchQuery(value);
+    setCurrentListPage(1);
+  };
+
+  const toggleTrackSelection = (isrc: string) => {
+    setSelectedTracks((prev) =>
+      prev.includes(isrc) ? prev.filter((id) => id !== isrc) : [...prev, isrc]
+    );
+  };
+
+  const toggleSelectAll = (tracks: any[]) => {
+    const tracksWithIsrc = tracks.filter((track) => track.isrc).map((track) => track.isrc);
+    if (selectedTracks.length === tracksWithIsrc.length) {
+      setSelectedTracks([]);
+    } else {
+      setSelectedTracks(tracksWithIsrc);
+    }
+  };
+
+  const handleOpenFolder = async () => {
+    const settings = getSettings();
+    if (!settings.downloadPath) {
+      toast.error("Download path not set");
+      return;
+    }
+
+    try {
+      await OpenFolder(settings.downloadPath);
+    } catch (error) {
+      console.error("Error opening folder:", error);
+      toast.error(`Error opening folder: ${error}`);
+    }
+  };
+
+
+  const renderMetadata = () => {
+    if (!metadata.metadata) return null;
+
+    if ("track" in metadata.metadata) {
+      const { track } = metadata.metadata;
+      return (
+        <TrackInfo
+          track={track}
+          isDownloading={download.isDownloading}
+          downloadingTrack={download.downloadingTrack}
+          isDownloaded={download.downloadedTracks.has(track.isrc)}
+          isFailed={download.failedTracks.has(track.isrc)}
+          isSkipped={download.skippedTracks.has(track.isrc)}
+          downloadingLyricsTrack={lyrics.downloadingLyricsTrack}
+          downloadedLyrics={lyrics.downloadedLyrics.has(track.spotify_id || "")}
+          failedLyrics={lyrics.failedLyrics.has(track.spotify_id || "")}
+          skippedLyrics={lyrics.skippedLyrics.has(track.spotify_id || "")}
+          checkingAvailability={availability.checkingTrackId === track.spotify_id}
+          availability={availability.getAvailability(track.spotify_id || "")}
+          downloadingCover={cover.downloadingCover}
+          downloadedCover={cover.downloadedCovers.has(track.spotify_id || "")}
+          failedCover={cover.failedCovers.has(track.spotify_id || "")}
+          skippedCover={cover.skippedCovers.has(track.spotify_id || "")}
+          onDownload={download.handleDownloadTrack}
+          onDownloadLyrics={(spotifyId, name, artists, albumName, albumArtist, releaseDate, discNumber) =>
+            lyrics.handleDownloadLyrics(spotifyId, name, artists, albumName, undefined, undefined, albumArtist, releaseDate, discNumber)
+          }
+          onCheckAvailability={availability.checkAvailability}
+          onDownloadCover={(coverUrl, trackName, artistName, albumName, _playlistName, _position, trackId, albumArtist, releaseDate, discNumber) =>
+            cover.handleDownloadCover(coverUrl, trackName, artistName, albumName, undefined, undefined, trackId, albumArtist, releaseDate, discNumber)
+          }
+          onOpenFolder={handleOpenFolder}
+        />
+      );
+    }
+
+    if ("album_info" in metadata.metadata) {
+      const { album_info, track_list } = metadata.metadata;
+      return (
+        <AlbumInfo
+          albumInfo={album_info}
+          trackList={track_list}
+          searchQuery={searchQuery}
+          sortBy={sortBy}
+          selectedTracks={selectedTracks}
+          downloadedTracks={download.downloadedTracks}
+          failedTracks={download.failedTracks}
+          skippedTracks={download.skippedTracks}
+          downloadingTrack={download.downloadingTrack}
+          isDownloading={download.isDownloading}
+          bulkDownloadType={download.bulkDownloadType}
+          downloadProgress={download.downloadProgress}
+          currentDownloadInfo={download.currentDownloadInfo}
+          currentPage={currentListPage}
+          itemsPerPage={ITEMS_PER_PAGE}
+          downloadedLyrics={lyrics.downloadedLyrics}
+          failedLyrics={lyrics.failedLyrics}
+          skippedLyrics={lyrics.skippedLyrics}
+          downloadingLyricsTrack={lyrics.downloadingLyricsTrack}
+          checkingAvailabilityTrack={availability.checkingTrackId}
+          availabilityMap={availability.availabilityMap}
+          downloadedCovers={cover.downloadedCovers}
+          failedCovers={cover.failedCovers}
+          skippedCovers={cover.skippedCovers}
+          downloadingCoverTrack={cover.downloadingCoverTrack}
+          isBulkDownloadingCovers={cover.isBulkDownloadingCovers}
+          isBulkDownloadingLyrics={lyrics.isBulkDownloadingLyrics}
+          onSearchChange={handleSearchChange}
+          onSortChange={setSortBy}
+          onToggleTrack={toggleTrackSelection}
+          onToggleSelectAll={toggleSelectAll}
+          onDownloadTrack={download.handleDownloadTrack}
+          onDownloadLyrics={(spotifyId, name, artists, albumName, _folderName, _isArtistDiscography, position, albumArtist, releaseDate, discNumber) =>
+            lyrics.handleDownloadLyrics(spotifyId, name, artists, albumName, album_info.name, position, albumArtist, releaseDate, discNumber)
+          }
+          onDownloadCover={(coverUrl, trackName, artistName, albumName, _folderName, _isArtistDiscography, position, trackId, albumArtist, releaseDate, discNumber) =>
+            cover.handleDownloadCover(coverUrl, trackName, artistName, albumName, album_info.name, position, trackId, albumArtist, releaseDate, discNumber)
+          }
+          onCheckAvailability={availability.checkAvailability}
+          onDownloadAllLyrics={() => lyrics.handleDownloadAllLyrics(track_list, album_info.name)}
+          onDownloadAllCovers={() => cover.handleDownloadAllCovers(track_list, album_info.name)}
+          onDownloadAll={() => download.handleDownloadAll(track_list, undefined, true)}
+          onDownloadSelected={() =>
+            download.handleDownloadSelected(selectedTracks, track_list, undefined, true)
+          }
+          onStopDownload={download.handleStopDownload}
+          onOpenFolder={handleOpenFolder}
+          onPageChange={setCurrentListPage}
+          onArtistClick={async (artist) => {
+            const artistUrl = await metadata.handleArtistClick(artist);
+            if (artistUrl) {
+              setSpotifyUrl(artistUrl);
+            }
+          }}
+          onTrackClick={async (track) => {
+            if (track.external_urls) {
+              setSpotifyUrl(track.external_urls);
+              await metadata.handleFetchMetadata(track.external_urls);
+            }
+          }}
+        />
+      );
+    }
+
+    if ("playlist_info" in metadata.metadata) {
+      const { playlist_info, track_list } = metadata.metadata;
+      return (
+        <PlaylistInfo
+          playlistInfo={playlist_info}
+          trackList={track_list}
+          searchQuery={searchQuery}
+          sortBy={sortBy}
+          selectedTracks={selectedTracks}
+          downloadedTracks={download.downloadedTracks}
+          failedTracks={download.failedTracks}
+          skippedTracks={download.skippedTracks}
+          downloadingTrack={download.downloadingTrack}
+          isDownloading={download.isDownloading}
+          bulkDownloadType={download.bulkDownloadType}
+          downloadProgress={download.downloadProgress}
+          currentDownloadInfo={download.currentDownloadInfo}
+          currentPage={currentListPage}
+          itemsPerPage={ITEMS_PER_PAGE}
+          downloadedLyrics={lyrics.downloadedLyrics}
+          failedLyrics={lyrics.failedLyrics}
+          skippedLyrics={lyrics.skippedLyrics}
+          downloadingLyricsTrack={lyrics.downloadingLyricsTrack}
+          checkingAvailabilityTrack={availability.checkingTrackId}
+          availabilityMap={availability.availabilityMap}
+          downloadedCovers={cover.downloadedCovers}
+          failedCovers={cover.failedCovers}
+          skippedCovers={cover.skippedCovers}
+          downloadingCoverTrack={cover.downloadingCoverTrack}
+          isBulkDownloadingCovers={cover.isBulkDownloadingCovers}
+          isBulkDownloadingLyrics={lyrics.isBulkDownloadingLyrics}
+          onSearchChange={handleSearchChange}
+          onSortChange={setSortBy}
+          onToggleTrack={toggleTrackSelection}
+          onToggleSelectAll={toggleSelectAll}
+          onDownloadTrack={download.handleDownloadTrack}
+          onDownloadLyrics={(spotifyId, name, artists, albumName, _folderName, _isArtistDiscography, position, albumArtist, releaseDate, discNumber) =>
+            lyrics.handleDownloadLyrics(spotifyId, name, artists, albumName, playlist_info.owner.name, position, albumArtist, releaseDate, discNumber)
+          }
+          onDownloadCover={(coverUrl, trackName, artistName, albumName, _folderName, _isArtistDiscography, position, trackId, albumArtist, releaseDate, discNumber) =>
+            cover.handleDownloadCover(coverUrl, trackName, artistName, albumName, playlist_info.owner.name, position, trackId, albumArtist, releaseDate, discNumber)
+          }
+          onCheckAvailability={availability.checkAvailability}
+          onDownloadAllLyrics={() => lyrics.handleDownloadAllLyrics(track_list, playlist_info.owner.name)}
+          onDownloadAllCovers={() => cover.handleDownloadAllCovers(track_list, playlist_info.owner.name)}
+          onDownloadAll={() => download.handleDownloadAll(track_list, playlist_info.owner.name)}
+          onDownloadSelected={() =>
+            download.handleDownloadSelected(
+              selectedTracks,
+              track_list,
+              playlist_info.owner.name
+            )
+          }
+          onStopDownload={download.handleStopDownload}
+          onOpenFolder={handleOpenFolder}
+          onPageChange={setCurrentListPage}
+          onAlbumClick={metadata.handleAlbumClick}
+          onArtistClick={async (artist) => {
+            const artistUrl = await metadata.handleArtistClick(artist);
+            if (artistUrl) {
+              setSpotifyUrl(artistUrl);
+            }
+          }}
+          onTrackClick={async (track) => {
+            if (track.external_urls) {
+              setSpotifyUrl(track.external_urls);
+              await metadata.handleFetchMetadata(track.external_urls);
+            }
+          }}
+        />
+      );
+    }
+
+    if ("artist_info" in metadata.metadata) {
+      const { artist_info, album_list, track_list } = metadata.metadata;
+      return (
+        <ArtistInfo
+          artistInfo={artist_info}
+          albumList={album_list}
+          trackList={track_list}
+          searchQuery={searchQuery}
+          sortBy={sortBy}
+          selectedTracks={selectedTracks}
+          downloadedTracks={download.downloadedTracks}
+          failedTracks={download.failedTracks}
+          skippedTracks={download.skippedTracks}
+          downloadingTrack={download.downloadingTrack}
+          isDownloading={download.isDownloading}
+          bulkDownloadType={download.bulkDownloadType}
+          downloadProgress={download.downloadProgress}
+          currentDownloadInfo={download.currentDownloadInfo}
+          currentPage={currentListPage}
+          itemsPerPage={ITEMS_PER_PAGE}
+          downloadedLyrics={lyrics.downloadedLyrics}
+          failedLyrics={lyrics.failedLyrics}
+          skippedLyrics={lyrics.skippedLyrics}
+          downloadingLyricsTrack={lyrics.downloadingLyricsTrack}
+          checkingAvailabilityTrack={availability.checkingTrackId}
+          availabilityMap={availability.availabilityMap}
+          downloadedCovers={cover.downloadedCovers}
+          failedCovers={cover.failedCovers}
+          skippedCovers={cover.skippedCovers}
+          downloadingCoverTrack={cover.downloadingCoverTrack}
+          isBulkDownloadingCovers={cover.isBulkDownloadingCovers}
+          isBulkDownloadingLyrics={lyrics.isBulkDownloadingLyrics}
+          onSearchChange={handleSearchChange}
+          onSortChange={setSortBy}
+          onToggleTrack={toggleTrackSelection}
+          onToggleSelectAll={toggleSelectAll}
+          onDownloadTrack={download.handleDownloadTrack}
+          onDownloadLyrics={(spotifyId, name, artists, albumName, _folderName, _isArtistDiscography, position, albumArtist, releaseDate, discNumber) =>
+            lyrics.handleDownloadLyrics(spotifyId, name, artists, albumName, artist_info.name, position, albumArtist, releaseDate, discNumber)
+          }
+          onDownloadCover={(coverUrl, trackName, artistName, albumName, _folderName, _isArtistDiscography, position, trackId, albumArtist, releaseDate, discNumber) =>
+            cover.handleDownloadCover(coverUrl, trackName, artistName, albumName, artist_info.name, position, trackId, albumArtist, releaseDate, discNumber)
+          }
+          onCheckAvailability={availability.checkAvailability}
+          onDownloadAllLyrics={() => lyrics.handleDownloadAllLyrics(track_list, artist_info.name)}
+          onDownloadAllCovers={() => cover.handleDownloadAllCovers(track_list, artist_info.name)}
+          onDownloadAll={() => download.handleDownloadAll(track_list, artist_info.name)}
+          onDownloadSelected={() =>
+            download.handleDownloadSelected(selectedTracks, track_list, artist_info.name)
+          }
+          onStopDownload={download.handleStopDownload}
+          onOpenFolder={handleOpenFolder}
+          onAlbumClick={metadata.handleAlbumClick}
+          onArtistClick={async (artist) => {
+            const artistUrl = await metadata.handleArtistClick(artist);
+            if (artistUrl) {
+              setSpotifyUrl(artistUrl);
+            }
+          }}
+          onPageChange={setCurrentListPage}
+          onTrackClick={async (track) => {
+            if (track.external_urls) {
+              setSpotifyUrl(track.external_urls);
+              await metadata.handleFetchMetadata(track.external_urls);
+            }
+          }}
+        />
+      );
+    }
+
+    return null;
+  };
+
+
+  const renderPage = () => {
+    switch (currentPage) {
+      case "settings":
+        return <SettingsPage />;
+      case "debug":
+        return <DebugLoggerPage />;
+      case "audio-analysis":
+        return <AudioAnalysisPage />;
+      case "audio-converter":
+        return <AudioConverterPage />;
+      case "file-manager":
+        return <FileManagerPage />;
+      default:
+        return (
+          <>
+            <Header
+              version={CURRENT_VERSION}
+              hasUpdate={hasUpdate}
+              releaseDate={releaseDate}
+            />
+
+            {/* Timeout Dialog */}
+            <Dialog
+              open={metadata.showTimeoutDialog}
+              onOpenChange={metadata.setShowTimeoutDialog}
+            >
+              <DialogContent className="sm:max-w-[425px] p-6 [&>button]:hidden">
+                <div className="absolute right-4 top-4">
+                  <Button
+                    variant="ghost"
+                    size="icon"
+                    className="h-6 w-6 opacity-70 hover:opacity-100"
+                    onClick={() => metadata.setShowTimeoutDialog(false)}
+                  >
+                    <X className="h-4 w-4" />
+                  </Button>
+                </div>
+                <DialogTitle className="text-sm font-medium">Fetch Artist</DialogTitle>
+                <DialogDescription>
+                  Set timeout for fetching metadata. Longer timeout is recommended for artists
+                  with large discography.
+                </DialogDescription>
+                {metadata.pendingArtistName && (
+                  <div className="py-2">
+                    <p className="font-medium bg-muted/50 rounded-md px-3 py-2">{metadata.pendingArtistName}</p>
+                  </div>
+                )}
+                <div className="space-y-4 py-4">
+                  <div className="space-y-2">
+                    <Label htmlFor="timeout">Timeout (seconds)</Label>
+                    <Input
+                      id="timeout"
+                      type="number"
+                      min="10"
+                      max="600"
+                      value={metadata.timeoutValue}
+                      onChange={(e) => metadata.setTimeoutValue(Number(e.target.value))}
+                    />
+                    <p className="text-xs text-muted-foreground">
+                      Default: 60 seconds. For large discographies, try 300-600 seconds (5-10
+                      minutes).
+                    </p>
+                  </div>
+                </div>
+                <DialogFooter>
+                  <Button
+                    variant="outline"
+                    onClick={() => metadata.setShowTimeoutDialog(false)}
+                  >
+                    Cancel
+                  </Button>
+                  <Button onClick={metadata.handleConfirmFetch}>
+                    <Search className="h-4 w-4" />
+                    Fetch
+                  </Button>
+                </DialogFooter>
+              </DialogContent>
+            </Dialog>
+
+            {/* Album Fetch Dialog */}
+            <Dialog open={metadata.showAlbumDialog} onOpenChange={metadata.setShowAlbumDialog}>
+              <DialogContent className="sm:max-w-[425px] p-6 [&>button]:hidden">
+                <div className="absolute right-4 top-4">
+                  <Button
+                    variant="ghost"
+                    size="icon"
+                    className="h-6 w-6 opacity-70 hover:opacity-100"
+                    onClick={() => metadata.setShowAlbumDialog(false)}
+                  >
+                    <X className="h-4 w-4" />
+                  </Button>
+                </div>
+                <DialogTitle className="text-sm font-medium">Fetch Album</DialogTitle>
+                <DialogDescription>
+                  Do you want to fetch metadata for this album?
+                </DialogDescription>
+                {metadata.selectedAlbum && (
+                  <div className="py-2">
+                    <p className="font-medium bg-muted/50 rounded-md px-3 py-2">{metadata.selectedAlbum.name}</p>
+                  </div>
+                )}
+                <DialogFooter>
+                  <Button variant="outline" onClick={() => metadata.setShowAlbumDialog(false)}>
+                    Cancel
+                  </Button>
+                  <Button onClick={async () => {
+                    const albumUrl = await metadata.handleConfirmAlbumFetch();
+                    if (albumUrl) {
+                      setSpotifyUrl(albumUrl);
+                    }
+                  }}>
+                    <Search className="h-4 w-4" />
+                    Fetch Album
+                  </Button>
+                </DialogFooter>
+              </DialogContent>
+            </Dialog>
+
+            <SearchBar
+              url={spotifyUrl}
+              loading={metadata.loading}
+              onUrlChange={setSpotifyUrl}
+              onFetch={handleFetchMetadata}
+              onFetchUrl={async (url) => {
+                setSpotifyUrl(url);
+                const updatedUrl = await metadata.handleFetchMetadata(url);
+                if (updatedUrl) {
+                  setSpotifyUrl(updatedUrl);
+                }
+              }}
+              history={fetchHistory}
+              onHistorySelect={handleHistorySelect}
+              onHistoryRemove={removeFromHistory}
+              hasResult={!!metadata.metadata}
+              searchMode={isSearchMode}
+              onSearchModeChange={setIsSearchMode}
+            />
+
+            {!isSearchMode && metadata.metadata && renderMetadata()}
+          </>
+        );
+    }
+  };
+
+  return (
+    <TooltipProvider>
+      <div className="min-h-screen bg-background flex flex-col">
+        <TitleBar />
+        <Sidebar currentPage={currentPage} onPageChange={setCurrentPage} />
+        
+        {/* Main content area with sidebar offset */}
+        <div className="flex-1 ml-14 mt-10 p-4 md:p-8">
+          <div className="max-w-4xl mx-auto space-y-6">
+            {renderPage()}
+          </div>
+        </div>
+
+        {/* Download Progress Toast - Bottom Left */}
+        <DownloadProgressToast onClick={downloadQueue.openQueue} />
+
+        {/* Download Queue Dialog */}
+        <DownloadQueue
+          isOpen={downloadQueue.isOpen}
+          onClose={downloadQueue.closeQueue}
+        />
+
+        {/* Jump to Top Button - Bottom Right */}
+        {showScrollTop && (
+          <Button
+            onClick={scrollToTop}
+            className="fixed bottom-6 right-6 z-50 h-10 w-10 rounded-full shadow-lg"
+            size="icon"
+          >
+            <ArrowUp className="h-5 w-5" />
+          </Button>
+        )}
+      </div>
+    </TooltipProvider>
+  );
+}
+
+export default App;
@@ -0,0 +1,273 @@
+import { Button } from "@/components/ui/button";
+import { Card, CardContent } from "@/components/ui/card";
+import { Download, FolderOpen, ImageDown, FileText } 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;
+}
+
+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>
+        <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"
+              />
+            )}
+            <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!,
+                        })
+                      }
+                    >
+                      {albumInfo.artists}
+                    </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"}
+                  </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" />
+                  )}
+                  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>
+                    <TooltipTrigger asChild>
+                      <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>
+                    <TooltipTrigger asChild>
+                      <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" />
+                    Open Folder
+                  </Button>
+                )}
+              </div>
+              {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}
+        />
+      </div>
+    </div>
+  );
+}
@@ -0,0 +1,315 @@
+import { Button } from "@/components/ui/button";
+import { Card, CardContent } from "@/components/ui/card";
+import { Download, FolderOpen, ImageDown, FileText } 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 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;
+}
+
+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>
+                  </>
+                )}
+              </div>
+            </div>
+          </div>
+        </CardContent>
+      </Card>
+
+      {albumList.length > 0 && (
+        <div className="space-y-4">
+          <h3 className="text-2xl font-bold">Discography</h3>
+          <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({
+                    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>
+                <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>
+            ))}
+          </div>
+        </div>
+      )}
+
+      {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>
+            <div className="flex gap-2 flex-wrap">
+              <Button onClick={onDownloadAll} size="sm" disabled={isDownloading}>
+                {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>
+                  <TooltipTrigger asChild>
+                    <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>
+                  <TooltipTrigger asChild>
+                    <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" />
+                  Open Folder
+                </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>
+  );
+}
@@ -0,0 +1,161 @@
+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 type { AnalysisResult } from "@/types/api";
+
+interface AudioAnalysisProps {
+  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>
+        <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>
+        <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" />
+            <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" />
+                Analyze Audio
+              </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}:${secs.toString().padStart(2, '0')}`;
+  };
+
+  const formatNumber = (num: number) => {
+    return num.toFixed(2);
+  };
+
+  const formatFileSize = (bytes: number): string => {
+    if (bytes === 0) return "0 B";
+    const k = 1024;
+    const sizes = ["B", "KB", "MB", "GB"];
+    const i = Math.floor(Math.log(bytes) / Math.log(k));
+    return parseFloat((bytes / Math.pow(k, i)).toFixed(1)) + " " + sizes[i];
+  };
+
+  // Calculate Nyquist frequency (half of sample rate)
+  const nyquistFreq = result.sample_rate / 2;
+
+  return (
+    <Card className="gap-2">
+      <CardHeader>
+        {filePath && (
+          <p className="text-sm font-mono break-all">{filePath}</p>
+        )}
+      </CardHeader>
+
+      <CardContent className="space-y-2">
+        {/* Audio Properties - Single line */}
+        <div className="flex flex-wrap items-center gap-x-3 gap-y-1 text-xs">
+          <div className="flex items-center gap-1">
+            <Radio className="h-3 w-3 text-muted-foreground" />
+            <span className="text-muted-foreground">Sample Rate:</span>
+            <span className="font-semibold">{(result.sample_rate / 1000).toFixed(1)} kHz</span>
+          </div>
+          <div className="flex items-center gap-1">
+            <FileAudio className="h-3 w-3 text-muted-foreground" />
+            <span className="text-muted-foreground">Bit Depth:</span>
+            <span className="font-semibold">{result.bit_depth}</span>
+          </div>
+          <div className="flex items-center gap-1">
+            <Waves className="h-3 w-3 text-muted-foreground" />
+            <span className="text-muted-foreground">Channels:</span>
+            <span className="font-semibold">{result.channels === 2 ? "Stereo" : result.channels === 1 ? "Mono" : `${result.channels}`}</span>
+          </div>
+          <div className="flex items-center gap-1">
+            <Clock className="h-3 w-3 text-muted-foreground" />
+            <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" />
+            <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" />
+              <span className="text-muted-foreground">Size:</span>
+              <span className="font-semibold">{formatFileSize(result.file_size)}</span>
+            </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" />
+            <span className="text-muted-foreground">Dynamic Range:</span>
+            <span className="font-semibold">{formatNumber(result.dynamic_range)} dB</span>
+          </div>
+          <div className="flex items-center gap-1">
+            <span className="text-muted-foreground">Peak:</span>
+            <span className="font-semibold">{formatNumber(result.peak_amplitude)} dB</span>
+          </div>
+          <div className="flex items-center gap-1">
+            <span className="text-muted-foreground">RMS:</span>
+            <span className="font-semibold">{formatNumber(result.rms_level)} dB</span>
+          </div>
+          <div className="flex items-center gap-1 ml-auto">
+            <span className="text-muted-foreground">Samples:</span>
+            <span className="font-semibold">{result.total_samples.toLocaleString()}</span>
+          </div>
+        </div>
+      </CardContent>
+    </Card>
+  );
+}
@@ -0,0 +1,155 @@
+import { useState, useCallback, useEffect } from "react";
+import { Button } from "@/components/ui/button";
+import { Upload, ArrowLeft, Trash2 } from "lucide-react";
+import { AudioAnalysis } from "@/components/AudioAnalysis";
+import { SpectrumVisualization } from "@/components/SpectrumVisualization";
+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;
+}
+
+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();
+    };
+  }, [handleFileDrop]);
+
+  const handleAnalyzeAnother = () => {
+    clearResult();
+  };
+
+  return (
+    <div className="space-y-6">
+      {/* Header */}
+      <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>
+          )}
+          <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" />
+            Clear
+          </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}
+        >
+          <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" />
+          </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"}
+          </p>
+          <Button onClick={handleSelectFile} size="lg">
+            <Upload className="h-5 w-5" />
+            Select FLAC File
+          </Button>
+        </div>
+      )}
+
+      {/* Loading State */}
+      {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>
+      )}
+
+      {/* Analysis Results */}
+      {result && (
+        <div className="space-y-4">
+          {/* Detailed Analysis */}
+          <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">
+              <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>
+  );
+}
@@ -0,0 +1,671 @@
+import { useState, useCallback, useEffect } from "react";
+import { Button } from "@/components/ui/button";
+import { Label } from "@/components/ui/label";
+import {
+  ToggleGroup,
+  ToggleGroupItem,
+} from "@/components/ui/toggle-group";
+import {
+  Upload,
+  Download,
+  X,
+  CheckCircle2,
+  AlertCircle,
+  Trash2,
+  FileMusic,
+  WandSparkles,
+} from "lucide-react";
+import { Spinner } from "@/components/ui/spinner";
+import {
+  IsFFmpegInstalled,
+  DownloadFFmpeg,
+  ConvertAudio,
+  SelectAudioFiles,
+} from "../../wailsjs/go/main/App";
+import { toastWithSound as toast } from "@/lib/toast-with-sound";
+import { OnFileDrop, OnFileDropOff } from "../../wailsjs/runtime/runtime";
+
+interface AudioFile {
+  path: string;
+  name: string;
+  format: string;
+  size: number;
+  status: "pending" | "converting" | "success" | "error";
+  error?: string;
+  outputPath?: string;
+}
+
+function 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 BITRATE_OPTIONS = [
+  { value: "320k", label: "320k" },
+  { value: "256k", label: "256k" },
+  { value: "192k", label: "192k" },
+  { value: "128k", label: "128k" },
+];
+
+const M4A_CODEC_OPTIONS = [
+  { value: "aac", label: "AAC" },
+  { value: "alac", label: "ALAC" },
+];
+
+const STORAGE_KEY = "spotiflac_audio_converter_state";
+
+export function AudioConverterPage() {
+  const [ffmpegInstalled, setFfmpegInstalled] = useState<boolean>(false);
+  const [installingFfmpeg, setInstallingFfmpeg] = useState(false);
+  const [files, setFiles] = useState<AudioFile[]>(() => {
+    // Initialize from sessionStorage synchronously
+    try {
+      const saved = sessionStorage.getItem(STORAGE_KEY);
+      if (saved) {
+        const parsed = JSON.parse(saved);
+        if (parsed.files && Array.isArray(parsed.files) && parsed.files.length > 0) {
+          return parsed.files;
+        }
+      }
+    } catch (err) {
+      console.error("Failed to load saved state:", err);
+    }
+    return [];
+  });
+  const [outputFormat, setOutputFormat] = useState<"mp3" | "m4a">(() => {
+    try {
+      const saved = sessionStorage.getItem(STORAGE_KEY);
+      if (saved) {
+        const parsed = JSON.parse(saved);
+        if (parsed.outputFormat === "mp3" || parsed.outputFormat === "m4a") {
+          return parsed.outputFormat;
+        }
+      }
+    } catch (err) {
+      // Ignore
+    }
+    return "mp3";
+  });
+  const [bitrate, setBitrate] = useState(() => {
+    try {
+      const saved = sessionStorage.getItem(STORAGE_KEY);
+      if (saved) {
+        const parsed = JSON.parse(saved);
+        if (parsed.bitrate) {
+          return parsed.bitrate;
+        }
+      }
+    } catch (err) {
+      // Ignore
+    }
+    return "320k";
+  });
+  const [m4aCodec, setM4aCodec] = useState<"aac" | "alac">(() => {
+    try {
+      const saved = sessionStorage.getItem(STORAGE_KEY);
+      if (saved) {
+        const parsed = JSON.parse(saved);
+        if (parsed.m4aCodec === "aac" || parsed.m4aCodec === "alac") {
+          return parsed.m4aCodec;
+        }
+      }
+    } catch (err) {
+      // Ignore
+    }
+    return "aac";
+  });
+  const [converting, setConverting] = useState(false);
+  const [isDragging, setIsDragging] = useState(false);
+  const [isFullscreen, setIsFullscreen] = useState(false);
+
+  // Helper function to save state to sessionStorage
+  const saveState = useCallback((stateToSave: { files: AudioFile[]; outputFormat: "mp3" | "m4a"; bitrate: string; m4aCodec: "aac" | "alac" }) => {
+    try {
+      sessionStorage.setItem(STORAGE_KEY, JSON.stringify(stateToSave));
+    } catch (err) {
+      console.error("Failed to save state:", err);
+    }
+  }, []);
+
+  // Load saved state from sessionStorage on mount (only for ffmpeg check)
+  useEffect(() => {
+    checkFfmpegInstallation();
+  }, []);
+
+  // Save state to sessionStorage whenever files, outputFormat, bitrate, or m4aCodec changes
+  useEffect(() => {
+    saveState({ files, outputFormat, bitrate, m4aCodec });
+  }, [files, outputFormat, bitrate, m4aCodec, saveState]);
+
+  // Auto-set output format to M4A if all files are MP3
+  useEffect(() => {
+    if (files.length === 0) return;
+    
+    const allMP3 = files.every((f) => f.format === "mp3");
+    if (allMP3 && outputFormat !== "m4a") {
+      setOutputFormat("m4a");
+    }
+    
+    // Reset to AAC if no FLAC files (ALAC doesn't make sense for lossy input)
+    const hasFlac = files.some((f) => f.format === "flac");
+    if (!hasFlac && m4aCodec === "alac") {
+      setM4aCodec("aac");
+    }
+  }, [files, outputFormat, m4aCodec]);
+
+  // Check if format selection should be disabled (all files are MP3)
+  const isFormatDisabled = files.length > 0 && files.every((f) => f.format === "mp3");
+  
+  // Check if any file is FLAC (ALAC only makes sense for lossless input)
+  const hasFlacFiles = files.some((f) => f.format === "flac");
+
+  // Detect fullscreen/maximized window
+  useEffect(() => {
+    const checkFullscreen = () => {
+      // Check if window is maximized or fullscreen
+      // For Wails, we can check if window height is close to screen height
+      const isMaximized = window.innerHeight >= window.screen.height * 0.9;
+      setIsFullscreen(isMaximized);
+    };
+
+    checkFullscreen();
+    window.addEventListener("resize", checkFullscreen);
+    
+    // Also check on window focus in case user maximizes externally
+    window.addEventListener("focus", checkFullscreen);
+
+    return () => {
+      window.removeEventListener("resize", checkFullscreen);
+      window.removeEventListener("focus", checkFullscreen);
+    };
+  }, []);
+
+  const checkFfmpegInstallation = async () => {
+    try {
+      const installed = await IsFFmpegInstalled();
+      setFfmpegInstalled(installed);
+    } catch (err) {
+      console.error("Failed to check ffmpeg:", err);
+      setFfmpegInstalled(false);
+    }
+  };
+
+  const handleInstallFfmpeg = async () => {
+    setInstallingFfmpeg(true);
+    try {
+      const result = await DownloadFFmpeg();
+      if (result.success) {
+        toast.success("FFmpeg Installed", {
+          description: "FFmpeg has been installed successfully",
+        });
+        setFfmpegInstalled(true);
+      } else {
+        toast.error("Installation Failed", {
+          description: result.error || "Failed to install FFmpeg",
+        });
+      }
+    } catch (err) {
+      toast.error("Installation Failed", {
+        description: err instanceof Error ? err.message : "Unknown error",
+      });
+    } finally {
+      setInstallingFfmpeg(false);
+    }
+  };
+
+  const handleSelectFiles = async () => {
+    try {
+      const selectedFiles = await SelectAudioFiles();
+      if (selectedFiles && selectedFiles.length > 0) {
+        addFiles(selectedFiles);
+      }
+    } catch (err) {
+      toast.error("File Selection Failed", {
+        description: err instanceof Error ? err.message : "Failed to select files",
+      });
+    }
+  };
+
+  const addFiles = useCallback(async (paths: string[]) => {
+    const validExtensions = [".mp3", ".flac"];
+    
+    // Check for M4A files specifically
+    const m4aFiles = paths.filter((path) => {
+      const ext = path.toLowerCase().slice(path.lastIndexOf("."));
+      return ext === ".m4a";
+    });
+
+    if (m4aFiles.length > 0) {
+      toast.error("M4A files not supported", {
+        description: "Only FLAC and MP3 files are supported as input. Please convert M4A files first.",
+      });
+    }
+
+    // Get file sizes from backend
+    const GetFileSizes = (files: string[]): Promise<Record<string, number>> =>
+      (window as any)["go"]["main"]["App"]["GetFileSizes"](files);
+    
+    const validPaths = paths.filter((path) => {
+      const ext = path.toLowerCase().slice(path.lastIndexOf("."));
+      return validExtensions.includes(ext);
+    });
+
+    const fileSizes = validPaths.length > 0 ? await GetFileSizes(validPaths) : {};
+
+    setFiles((prev) => {
+      const newFiles: AudioFile[] = validPaths
+        .filter((path) => !prev.some((f) => f.path === path))
+        .map((path) => {
+          const name = path.split(/[/\\]/).pop() || path;
+          const ext = name.slice(name.lastIndexOf(".") + 1).toLowerCase();
+          return {
+            path,
+            name,
+            format: ext,
+            size: fileSizes[path] || 0,
+            status: "pending" as const,
+          };
+        });
+
+      if (newFiles.length > 0) {
+        if (paths.length > newFiles.length) {
+          const skipped = paths.length - newFiles.length;
+          toast.info("Some files skipped", {
+            description: `${skipped} file(s) were skipped (unsupported format or already added)`,
+          });
+        }
+
+        return [...prev, ...newFiles];
+      }
+
+      if (paths.length > 0 && m4aFiles.length === 0) {
+        toast.info("No new files added", {
+          description: "All files were already added or have unsupported format",
+        });
+      }
+
+      return prev;
+    });
+  }, []);
+
+  const handleFileDrop = useCallback(
+    async (_x: number, _y: number, paths: string[]) => {
+      setIsDragging(false);
+
+      if (paths.length === 0) return;
+
+      addFiles(paths);
+    },
+    [addFiles]
+  );
+
+  useEffect(() => {
+    // Only enable drag and drop for audio files if FFmpeg is installed
+    if (ffmpegInstalled === true) {
+      OnFileDrop((x, y, paths) => {
+        handleFileDrop(x, y, paths);
+      }, true);
+
+      return () => {
+        OnFileDropOff();
+      };
+    }
+  }, [handleFileDrop, ffmpegInstalled]);
+
+
+  const removeFile = (path: string) => {
+    setFiles((prev) => prev.filter((f) => f.path !== path));
+  };
+
+  const clearFiles = () => {
+    setFiles([]);
+  };
+
+  const handleConvert = async () => {
+    if (files.length === 0) {
+      toast.error("No files selected", {
+        description: "Please add audio files to convert",
+      });
+      return;
+    }
+
+    setConverting(true);
+
+    try {
+      // Include all files (including previously successful ones) for conversion
+      const inputPaths = files.map((f) => f.path);
+
+      // Mark all files as converting (including previously successful ones)
+      setFiles((prev) =>
+        prev.map((f) => {
+          if (inputPaths.includes(f.path)) {
+            return { ...f, status: "converting" as const, error: undefined };
+          }
+          return f;
+        })
+      );
+
+      const results = await ConvertAudio({
+        input_files: inputPaths,
+        output_format: outputFormat,
+        bitrate: bitrate,
+        codec: outputFormat === "m4a" ? m4aCodec : "",
+      });
+
+      // Update file statuses based on results
+      setFiles((prev) =>
+        prev.map((f) => {
+          const result = results.find((r) => r.input_file === f.path);
+          if (result) {
+            return {
+              ...f,
+              status: result.success ? "success" : "error",
+              error: result.error,
+              outputPath: result.output_file,
+            };
+          }
+          return f;
+        })
+      );
+
+      const successCount = results.filter((r) => r.success).length;
+      const failCount = results.filter((r) => !r.success).length;
+
+      if (successCount > 0) {
+        toast.success("Conversion Complete", {
+          description: `Successfully converted ${successCount} file(s)${failCount > 0 ? `, ${failCount} failed` : ""}`,
+        });
+      } else if (failCount > 0) {
+        toast.error("Conversion Failed", {
+          description: `All ${failCount} file(s) failed to convert`,
+        });
+      }
+    } catch (err) {
+      toast.error("Conversion Error", {
+        description: err instanceof Error ? err.message : "Unknown error",
+      });
+      setFiles((prev) =>
+        prev.map((f) => ({ ...f, status: "error" as const, error: "Conversion failed" }))
+      );
+    } finally {
+      setConverting(false);
+    }
+  };
+
+  const getStatusIcon = (status: AudioFile["status"]) => {
+    switch (status) {
+      case "converting":
+        return <Spinner className="h-4 w-4 text-primary" />;
+      case "success":
+        return <CheckCircle2 className="h-4 w-4 text-green-500" />;
+      case "error":
+        return <AlertCircle className="h-4 w-4 text-destructive" />;
+      default:
+        return <FileMusic className="h-4 w-4 text-muted-foreground" />;
+    }
+  };
+
+  // Count files that can be converted (pending + success files that can be re-converted)
+  const convertableCount = files.filter((f) => f.status === "pending" || f.status === "success").length;
+  const successCount = files.filter((f) => f.status === "success").length;
+
+  // Show FFmpeg installation prompt if not installed
+  if (ffmpegInstalled === false) {
+    return (
+      <div className={`space-y-6 ${isFullscreen ? "h-full flex flex-col" : ""}`}>
+        <div className="flex items-center gap-4">
+          <h1 className="text-2xl font-bold">Audio Converter</h1>
+        </div>
+
+        <div
+          className={`flex flex-col items-center justify-center border-2 border-dashed rounded-lg transition-all ${
+            isFullscreen ? "flex-1 min-h-[400px]" : "h-[400px]"
+          } border-muted-foreground/30`}
+        >
+          <div className="mb-4 flex h-16 w-16 items-center justify-center rounded-full bg-muted">
+            <Download className="h-8 w-8 text-primary" />
+          </div>
+          <p className="text-sm text-muted-foreground mb-4 text-center">
+            FFmpeg is required to convert audio files
+          </p>
+          <Button
+            onClick={handleInstallFfmpeg}
+            disabled={installingFfmpeg}
+            size="lg"
+          >
+            {installingFfmpeg ? (
+              <>
+                <Spinner className="h-5 w-5" />
+                Installing FFmpeg...
+              </>
+            ) : (
+              <>
+                <Download className="h-5 w-5" />
+                Install FFmpeg
+              </>
+            )}
+          </Button>
+        </div>
+      </div>
+    );
+  }
+
+  return (
+    <div className={`space-y-6 ${isFullscreen ? "h-full flex flex-col" : ""}`}>
+      {/* Header */}
+      <div className="flex items-center justify-between">
+        <h1 className="text-2xl font-bold">Audio Converter</h1>
+        {files.length > 0 && (
+          <div className="flex gap-2">
+            <Button variant="outline" size="sm" onClick={handleSelectFiles}>
+              <Upload className="h-4 w-4" />
+              Add More
+            </Button>
+            <Button
+              variant="outline"
+              size="sm"
+              onClick={clearFiles}
+              disabled={converting}
+            >
+              <Trash2 className="h-4 w-4" />
+              Clear All
+            </Button>
+          </div>
+        )}
+      </div>
+
+      {/* Drop Zone / File List */}
+      <div
+        className={`flex flex-col items-center justify-center border-2 border-dashed rounded-lg transition-all ${
+          isFullscreen ? "flex-1 min-h-[400px]" : "h-[400px]"
+        } ${
+          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}
+      >
+        {files.length === 0 ? (
+          <>
+            <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" />
+            </div>
+            <p className="text-sm text-muted-foreground mb-4 text-center">
+              {isDragging
+                ? "Drop your audio files here"
+                : "Drag and drop audio files here, or click the button below to select"}
+            </p>
+            <Button onClick={handleSelectFiles} size="lg">
+              <Upload className="h-5 w-5" />
+              Select Files
+            </Button>
+            <p className="text-xs text-muted-foreground mt-4 text-center">
+              Supported formats: FLAC, MP3
+            </p>
+          </>
+        ) : (
+          <div className="w-full h-full p-6 space-y-4 flex flex-col">
+            {/* Settings Row - Only show when files exist */}
+            <div className="space-y-2 pb-4 border-b shrink-0">
+                {/* Format and Bitrate in one line */}
+                <div className="flex items-center gap-4">
+                  <div className="flex items-center gap-2">
+                    <Label className="whitespace-nowrap">Format:</Label>
+                    <ToggleGroup
+                      type="single"
+                      variant="outline"
+                      value={outputFormat}
+                      onValueChange={(value) => {
+                        if (value && !isFormatDisabled) setOutputFormat(value as "mp3" | "m4a");
+                      }}
+                      disabled={isFormatDisabled}
+                    >
+                      {!isFormatDisabled && (
+                        <ToggleGroupItem value="mp3" aria-label="MP3">
+                          MP3
+                        </ToggleGroupItem>
+                      )}
+                      <ToggleGroupItem value="m4a" aria-label="M4A" disabled={isFormatDisabled}>
+                        M4A
+                      </ToggleGroupItem>
+                    </ToggleGroup>
+                  </div>
+                  {/* Codec selection for M4A - only show ALAC option when input has FLAC files */}
+                  {outputFormat === "m4a" && hasFlacFiles && (
+                    <div className="flex items-center gap-2">
+                      <Label className="whitespace-nowrap">Codec:</Label>
+                      <ToggleGroup
+                        type="single"
+                        variant="outline"
+                        value={m4aCodec}
+                        onValueChange={(value) => {
+                          if (value) setM4aCodec(value as "aac" | "alac");
+                        }}
+                      >
+                        {M4A_CODEC_OPTIONS.map((option) => (
+                          <ToggleGroupItem
+                            key={option.value}
+                            value={option.value}
+                            aria-label={option.label}
+                          >
+                            {option.label}
+                          </ToggleGroupItem>
+                        ))}
+                      </ToggleGroup>
+                    </div>
+                  )}
+                  {/* Bitrate selection - hide for ALAC (lossless) */}
+                  {!(outputFormat === "m4a" && m4aCodec === "alac") && (
+                    <div className="flex items-center gap-2">
+                      <Label className="whitespace-nowrap">Bitrate:</Label>
+                      <ToggleGroup
+                        type="single"
+                        variant="outline"
+                        value={bitrate}
+                        onValueChange={(value) => {
+                          if (value) setBitrate(value);
+                        }}
+                      >
+                        {BITRATE_OPTIONS.map((option) => (
+                          <ToggleGroupItem
+                            key={option.value}
+                            value={option.value}
+                            aria-label={option.label}
+                          >
+                            {option.label}
+                          </ToggleGroupItem>
+                        ))}
+                      </ToggleGroup>
+                    </div>
+                  )}
+                </div>
+              </div>
+
+              {/* File List Header */}
+              <div className="flex items-center justify-between shrink-0">
+                <div className="text-sm text-muted-foreground">
+                  {files.length} file(s) • {successCount} converted
+                </div>
+              </div>
+
+              {/* File List */}
+              <div className="flex-1 space-y-2 overflow-y-auto min-h-0">
+              {files.map((file) => (
+                <div
+                  key={file.path}
+                  className="flex items-center gap-3 rounded-lg border p-3"
+                >
+                  {getStatusIcon(file.status)}
+                  <div className="flex-1 min-w-0">
+                    <p className="truncate text-sm font-medium">{file.name}</p>
+                    {file.error && (
+                      <p className="truncate text-xs text-destructive">
+                        {file.error}
+                      </p>
+                    )}
+                  </div>
+                  <span className="text-xs text-muted-foreground">
+                    {formatFileSize(file.size)}
+                  </span>
+                  <span className="text-xs uppercase text-muted-foreground">
+                    {file.format}
+                  </span>
+                  {file.status !== "converting" && (
+                    <Button
+                      variant="ghost"
+                      size="icon"
+                      className="h-8 w-8"
+                      onClick={() => removeFile(file.path)}
+                      disabled={converting}
+                    >
+                      <X className="h-4 w-4" />
+                    </Button>
+                  )}
+                </div>
+              ))}
+            </div>
+
+              {/* Convert Button */}
+              <div className="flex justify-center pt-4 border-t shrink-0">
+                <Button
+                  onClick={handleConvert}
+                  disabled={converting || convertableCount === 0}
+                  size="lg"
+                >
+                {converting ? (
+                  <>
+                    <Spinner className="h-4 w-4" />
+                    Converting...
+                  </>
+                ) : (
+                  <>
+                    <WandSparkles className="h-4 w-4" />
+                    Convert {convertableCount > 0 ? `${convertableCount} File(s)` : ""}
+                  </>
+                )}
+              </Button>
+            </div>
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}
+
+
+
@@ -0,0 +1,112 @@
+import { useState, useEffect, useRef } from "react";
+import { Trash2, Copy, Check } from "lucide-react";
+import { Button } from "@/components/ui/button";
+import { logger, type LogEntry } from "@/lib/logger";
+
+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",
+};
+
+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());
+    });
+    setLogs(logger.getLogs());
+    return () => {
+      unsubscribe();
+    };
+  }, []);
+
+  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">
+      <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" />}
+            Copy
+          </Button>
+          <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">
+              <span className="text-muted-foreground shrink-0">
+                [{formatTime(log.timestamp)}]
+              </span>
+              <span className={`shrink-0 w-16 ${levelColors[log.level]}`}>
+                [{log.level}]
+              </span>
+              <span className="break-all">{log.message}</span>
+            </div>
+          ))
+        )}
+      </div>
+    </div>
+  );
+}
@@ -0,0 +1,30 @@
+import { Button } from "@/components/ui/button";
+import { Progress } from "@/components/ui/progress";
+import { StopCircle } from "lucide-react";
+
+interface DownloadProgressProps {
+  progress: number;
+  currentTrack: { name: string; artists: string } | null;
+  onStop: () => void;
+}
+
+export function DownloadProgress({ progress, currentTrack, onStop }: DownloadProgressProps) {
+  const clampedProgress = Math.min(100, Math.max(0, progress));
+  return (
+    <div className="w-full space-y-2 mt-4">
+      <div className="flex items-center gap-2">
+        <Progress value={clampedProgress} className="h-2 flex-1" />
+        <Button variant="destructive" size="sm" onClick={onStop} className="gap-1.5">
+          <StopCircle className="h-4 w-4" />
+          Stop
+        </Button>
+      </div>
+      <p className="text-xs text-muted-foreground">
+        {clampedProgress}% -{" "}
+        {currentTrack
+          ? `${currentTrack.name} - ${currentTrack.artists}`
+          : "Preparing download..."}
+      </p>
+    </div>
+  );
+}
@@ -0,0 +1,48 @@
+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;
+}
+
+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}
+      >
+        <div className="flex items-center gap-3">
+          <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.toFixed(2)} MB/s
+              </p>
+            )}
+          </div>
+          <ChevronRight className="h-4 w-4 text-muted-foreground ml-1" />
+        </div>
+      </Button>
+    </div>
+  );
+}
@@ -0,0 +1,287 @@
+import { useEffect, useState } from "react";
+import { X, Download, CheckCircle2, XCircle, Clock, FileCheck, Trash2, HardDrive, Zap, Timer } from "lucide-react";
+import { Button } from "@/components/ui/button";
+import {
+  Dialog,
+  DialogContent,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog";
+
+import { Badge } from "@/components/ui/badge";
+import { GetDownloadQueue, ClearCompletedDownloads } from "../../wailsjs/go/main/App";
+import { backend } from "../../wailsjs/go/models";
+
+interface DownloadQueueProps {
+  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);
+      }
+    };
+
+    // 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",
+    };
+
+    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>
+              ))
+            )}
+          </div>
+        </div>
+      </DialogContent>
+    </Dialog>
+  );
+}
@@ -0,0 +1,91 @@
+import { X } from "lucide-react";
+
+export interface HistoryItem {
+  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;
+}
+
+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>
+      <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) => {
+                e.stopPropagation();
+                onRemove(item.id);
+              }}
+            >
+              <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">
+                    No Image
+                  </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}
+                >
+                  {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>
+              </div>
+            </div>
+          </div>
+        ))}
+      </div>
+    </div>
+  );
+}
@@ -0,0 +1,832 @@
+import { useState, useEffect, useCallback } from "react";
+import { Button } from "@/components/ui/button";
+import { Label } from "@/components/ui/label";
+import { InputWithContext } from "@/components/ui/input-with-context";
+import { Checkbox } from "@/components/ui/checkbox";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+import {
+  FolderOpen,
+  RefreshCw,
+  FileMusic,
+  ChevronRight,
+  ChevronDown,
+  Pencil,
+  Eye,
+  Folder,
+  Info,
+  RotateCcw,
+  FileText,
+  Image,
+  Copy,
+  Check,
+} from "lucide-react";
+import { Tooltip, TooltipTrigger, TooltipContent } from "@/components/ui/tooltip";
+import { Spinner } from "@/components/ui/spinner";
+import { SelectFolder } from "../../wailsjs/go/main/App";
+import { backend } from "../../wailsjs/go/models";
+import { toastWithSound as toast } from "@/lib/toast-with-sound";
+import { getSettings } from "@/lib/settings";
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog";
+
+const ListDirectoryFiles = (path: string): Promise<backend.FileInfo[]> => 
+  (window as any)['go']['main']['App']['ListDirectoryFiles'](path);
+const PreviewRenameFiles = (files: string[], format: string): Promise<backend.RenamePreview[]> => 
+  (window as any)['go']['main']['App']['PreviewRenameFiles'](files, format);
+const RenameFilesByMetadata = (files: string[], format: string): Promise<backend.RenameResult[]> => 
+  (window as any)['go']['main']['App']['RenameFilesByMetadata'](files, format);
+const ReadFileMetadata = (path: string): Promise<backend.AudioMetadata> => 
+  (window as any)['go']['main']['App']['ReadFileMetadata'](path);
+const IsFFprobeInstalled = (): Promise<boolean> => 
+  (window as any)['go']['main']['App']['IsFFprobeInstalled']();
+const DownloadFFmpeg = (): Promise<{ success: boolean; message: string; error?: string }> => 
+  (window as any)['go']['main']['App']['DownloadFFmpeg']();
+const ReadTextFile = (path: string): Promise<string> => 
+  (window as any)['go']['main']['App']['ReadTextFile'](path);
+const RenameFileTo = (oldPath: string, newName: string): Promise<void> => 
+  (window as any)['go']['main']['App']['RenameFileTo'](oldPath, newName);
+const ReadImageAsBase64 = (path: string): Promise<string> => 
+  (window as any)['go']['main']['App']['ReadImageAsBase64'](path);
+
+interface FileNode {
+  name: string;
+  path: string;
+  is_dir: boolean;
+  size: number;
+  children?: FileNode[];
+  expanded?: boolean;
+}
+
+interface FileMetadata {
+  title: string;
+  artist: string;
+  album: string;
+  album_artist: string;
+  track_number: number;
+  disc_number: number;
+  year: string;
+}
+
+type TabType = "track" | "lyric" | "cover";
+
+const FORMAT_PRESETS: Record<string, { label: string; template: string }> = {
+  "title": { label: "Title", template: "{title}" },
+  "title-artist": { label: "Title - Artist", template: "{title} - {artist}" },
+  "artist-title": { label: "Artist - Title", template: "{artist} - {title}" },
+  "track-title": { label: "Track. Title", template: "{track}. {title}" },
+  "track-title-artist": { label: "Track. Title - Artist", template: "{track}. {title} - {artist}" },
+  "track-artist-title": { label: "Track. Artist - Title", template: "{track}. {artist} - {title}" },
+  "title-album-artist": { label: "Title - Album Artist", template: "{title} - {album_artist}" },
+  "track-title-album-artist": { label: "Track. Title - Album Artist", template: "{track}. {title} - {album_artist}" },
+  "artist-album-title": { label: "Artist - Album - Title", template: "{artist} - {album} - {title}" },
+  "track-dash-title": { label: "Track - Title", template: "{track} - {title}" },
+  "disc-track-title": { label: "Disc-Track. Title", template: "{disc}-{track}. {title}" },
+  "disc-track-title-artist": { label: "Disc-Track. Title - Artist", template: "{disc}-{track}. {title} - {artist}" },
+  "custom": { label: "Custom...", template: "{title} - {artist}" },
+};
+
+const STORAGE_KEY = "spotiflac_file_manager_state";
+const DEFAULT_PRESET = "title-artist";
+const DEFAULT_CUSTOM_FORMAT = "{title} - {artist}";
+
+function 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];
+}
+
+export function FileManagerPage() {
+  const [rootPath, setRootPath] = useState(() => {
+    const settings = getSettings();
+    return settings.downloadPath || "";
+  });
+  const [allFiles, setAllFiles] = useState<FileNode[]>([]);
+  const [selectedFiles, setSelectedFiles] = useState<Set<string>>(new Set());
+  const [loading, setLoading] = useState(false);
+  const [activeTab, setActiveTab] = useState<TabType>("track");
+  const [formatPreset, setFormatPreset] = useState<string>(() => {
+    try {
+      const saved = localStorage.getItem(STORAGE_KEY);
+      if (saved) {
+        const parsed = JSON.parse(saved);
+        if (parsed.formatPreset && FORMAT_PRESETS[parsed.formatPreset]) {
+          return parsed.formatPreset;
+        }
+      }
+    } catch { /* ignore */ }
+    return DEFAULT_PRESET;
+  });
+  const [customFormat, setCustomFormat] = useState(() => {
+    try {
+      const saved = localStorage.getItem(STORAGE_KEY);
+      if (saved) {
+        const parsed = JSON.parse(saved);
+        if (parsed.customFormat) return parsed.customFormat;
+      }
+    } catch { /* ignore */ }
+    return DEFAULT_CUSTOM_FORMAT;
+  });
+
+  const renameFormat = formatPreset === "custom" ? (customFormat || FORMAT_PRESETS["custom"].template) : FORMAT_PRESETS[formatPreset].template;
+  const [showPreview, setShowPreview] = useState(false);
+  const [previewData, setPreviewData] = useState<backend.RenamePreview[]>([]);
+  const [renaming, setRenaming] = useState(false);
+  const [previewOnly, setPreviewOnly] = useState(false);
+  const [isFullscreen, setIsFullscreen] = useState(false);
+  const [showResetConfirm, setShowResetConfirm] = useState(false);
+  const [showMetadata, setShowMetadata] = useState(false);
+  const [metadataFile, setMetadataFile] = useState<string>("");
+  const [metadataInfo, setMetadataInfo] = useState<FileMetadata | null>(null);
+  const [loadingMetadata, setLoadingMetadata] = useState(false);
+  const [showFFprobeDialog, setShowFFprobeDialog] = useState(false);
+  const [installingFFprobe, setInstallingFFprobe] = useState(false);
+  const [showLyricsPreview, setShowLyricsPreview] = useState(false);
+  const [lyricsContent, setLyricsContent] = useState("");
+  const [lyricsFile, setLyricsFile] = useState("");
+  const [lyricsTab, setLyricsTab] = useState<"synced" | "plain">("synced");
+  const [copySuccess, setCopySuccess] = useState(false);
+  const [showCoverPreview, setShowCoverPreview] = useState(false);
+  const [coverFile, setCoverFile] = useState("");
+  const [coverData, setCoverData] = useState("");
+  const [showManualRename, setShowManualRename] = useState(false);
+  const [manualRenameFile, setManualRenameFile] = useState("");
+  const [manualRenameName, setManualRenameName] = useState("");
+  const [manualRenaming, setManualRenaming] = useState(false);
+
+  useEffect(() => {
+    try {
+      localStorage.setItem(STORAGE_KEY, JSON.stringify({ formatPreset, customFormat }));
+    } catch { /* ignore */ }
+  }, [formatPreset, customFormat]);
+
+  useEffect(() => {
+    const checkFullscreen = () => {
+      const isMaximized = window.innerHeight >= window.screen.height * 0.9;
+      setIsFullscreen(isMaximized);
+    };
+    checkFullscreen();
+    window.addEventListener("resize", checkFullscreen);
+    window.addEventListener("focus", checkFullscreen);
+    return () => {
+      window.removeEventListener("resize", checkFullscreen);
+      window.removeEventListener("focus", checkFullscreen);
+    };
+  }, []);
+
+  const filterFilesByType = (nodes: FileNode[], type: TabType): FileNode[] => {
+    return nodes
+      .map((node) => {
+        if (node.is_dir && node.children) {
+          const filteredChildren = filterFilesByType(node.children, type);
+          if (filteredChildren.length > 0) {
+            return { ...node, children: filteredChildren };
+          }
+          return null;
+        }
+        const ext = node.name.toLowerCase();
+        if (type === "track" && (ext.endsWith(".flac") || ext.endsWith(".mp3") || ext.endsWith(".m4a"))) return node;
+        if (type === "lyric" && ext.endsWith(".lrc")) return node;
+        if (type === "cover" && (ext.endsWith(".jpg") || ext.endsWith(".jpeg") || ext.endsWith(".png"))) return node;
+        return null;
+      })
+      .filter((node): node is FileNode => node !== null);
+  };
+
+  const loadFiles = useCallback(async () => {
+    if (!rootPath) return;
+    setLoading(true);
+    try {
+      const result = await ListDirectoryFiles(rootPath);
+      if (!result || !Array.isArray(result)) {
+        setAllFiles([]);
+        setSelectedFiles(new Set());
+        return;
+      }
+      setAllFiles(result as FileNode[]);
+      setSelectedFiles(new Set());
+    } catch (err) {
+      const errorMsg = err instanceof Error ? err.message : String(err || "");
+      if (!errorMsg.toLowerCase().includes("empty") && !errorMsg.toLowerCase().includes("no file")) {
+        toast.error("Failed to load files", { description: errorMsg || "Unknown error" });
+      }
+      setAllFiles([]);
+      setSelectedFiles(new Set());
+    } finally {
+      setLoading(false);
+    }
+  }, [rootPath]);
+
+  useEffect(() => {
+    if (rootPath) loadFiles();
+  }, [rootPath, loadFiles]);
+
+  const filteredFiles = filterFilesByType(allFiles, activeTab);
+
+  const getAllFilesFlat = (nodes: FileNode[]): FileNode[] => {
+    const result: FileNode[] = [];
+    for (const node of nodes) {
+      if (!node.is_dir) result.push(node);
+      if (node.children) result.push(...getAllFilesFlat(node.children));
+    }
+    return result;
+  };
+
+  const allAudioFiles = getAllFilesFlat(filterFilesByType(allFiles, "track"));
+  const allLyricFiles = getAllFilesFlat(filterFilesByType(allFiles, "lyric"));
+  const allCoverFiles = getAllFilesFlat(filterFilesByType(allFiles, "cover"));
+
+  const handleSelectFolder = async () => {
+    try {
+      const path = await SelectFolder(rootPath);
+      if (path) setRootPath(path);
+    } catch (err) {
+      toast.error("Failed to select folder", { description: err instanceof Error ? err.message : "Unknown error" });
+    }
+  };
+
+  const toggleExpand = (path: string) => {
+    setAllFiles((prev) => toggleNodeExpand(prev, path));
+  };
+
+  const toggleNodeExpand = (nodes: FileNode[], path: string): FileNode[] => {
+    return nodes.map((node) => {
+      if (node.path === path) return { ...node, expanded: !node.expanded };
+      if (node.children) return { ...node, children: toggleNodeExpand(node.children, path) };
+      return node;
+    });
+  };
+
+  const toggleSelect = (path: string) => {
+    setSelectedFiles((prev) => {
+      const newSet = new Set(prev);
+      if (newSet.has(path)) newSet.delete(path);
+      else newSet.add(path);
+      return newSet;
+    });
+  };
+
+  const toggleFolderSelect = (node: FileNode) => {
+    const folderFiles = getAllFilesFlat([node]);
+    const allSelected = folderFiles.every((f) => selectedFiles.has(f.path));
+    setSelectedFiles((prev) => {
+      const newSet = new Set(prev);
+      if (allSelected) folderFiles.forEach((f) => newSet.delete(f.path));
+      else folderFiles.forEach((f) => newSet.add(f.path));
+      return newSet;
+    });
+  };
+
+  const isFolderSelected = (node: FileNode): boolean | "indeterminate" => {
+    const folderFiles = getAllFilesFlat([node]);
+    if (folderFiles.length === 0) return false;
+    const selectedCount = folderFiles.filter((f) => selectedFiles.has(f.path)).length;
+    if (selectedCount === 0) return false;
+    if (selectedCount === folderFiles.length) return true;
+    return "indeterminate";
+  };
+
+  const selectAll = () => setSelectedFiles(new Set(allAudioFiles.map((f) => f.path)));
+  const deselectAll = () => setSelectedFiles(new Set());
+  const resetToDefault = () => { setFormatPreset(DEFAULT_PRESET); setCustomFormat(DEFAULT_CUSTOM_FORMAT); setShowResetConfirm(false); };
+
+  const handlePreview = async (isPreviewOnly: boolean) => {
+    if (selectedFiles.size === 0) { toast.error("No files selected"); return; }
+    const hasM4A = Array.from(selectedFiles).some(f => f.toLowerCase().endsWith(".m4a"));
+    if (hasM4A) {
+      const installed = await IsFFprobeInstalled();
+      if (!installed) { setShowFFprobeDialog(true); return; }
+    }
+    try {
+      const result = await PreviewRenameFiles(Array.from(selectedFiles), renameFormat);
+      setPreviewData(result);
+      setPreviewOnly(isPreviewOnly);
+      setShowPreview(true);
+    } catch (err) {
+      toast.error("Failed to generate preview", { description: err instanceof Error ? err.message : "Unknown error" });
+    }
+  };
+
+  const handleShowMetadata = async (filePath: string, e: React.MouseEvent) => {
+    e.stopPropagation();
+    if (filePath.toLowerCase().endsWith(".m4a")) {
+      const installed = await IsFFprobeInstalled();
+      if (!installed) { setShowFFprobeDialog(true); return; }
+    }
+    setMetadataFile(filePath);
+    setLoadingMetadata(true);
+    try {
+      const metadata = await ReadFileMetadata(filePath);
+      setMetadataInfo(metadata as FileMetadata);
+      setShowMetadata(true);
+    } catch (err) {
+      toast.error("Failed to read metadata", { description: err instanceof Error ? err.message : "Unknown error" });
+      setMetadataInfo(null);
+    } finally {
+      setLoadingMetadata(false);
+    }
+  };
+
+  const handleInstallFFprobe = async () => {
+    setInstallingFFprobe(true);
+    try {
+      const result = await DownloadFFmpeg();
+      if (result.success) { toast.success("FFprobe installed successfully"); setShowFFprobeDialog(false); }
+      else toast.error("Failed to install FFprobe", { description: result.error || result.message });
+    } catch (err) {
+      toast.error("Failed to install FFprobe", { description: err instanceof Error ? err.message : "Unknown error" });
+    } finally {
+      setInstallingFFprobe(false);
+    }
+  };
+
+  const handleShowLyrics = async (filePath: string, e: React.MouseEvent) => {
+    e.stopPropagation();
+    setLyricsFile(filePath);
+    setLyricsTab("synced");
+    try {
+      const content = await ReadTextFile(filePath);
+      setLyricsContent(content);
+      setShowLyricsPreview(true);
+    } catch (err) {
+      toast.error("Failed to read lyrics file", { description: err instanceof Error ? err.message : "Unknown error" });
+    }
+  };
+
+  const handleShowCover = async (filePath: string, e: React.MouseEvent) => {
+    e.stopPropagation();
+    setCoverFile(filePath);
+    try {
+      const data = await ReadImageAsBase64(filePath);
+      setCoverData(data);
+      setShowCoverPreview(true);
+    } catch (err) {
+      toast.error("Failed to load image", { description: err instanceof Error ? err.message : "Unknown error" });
+    }
+  };
+
+  const getPlainLyrics = (content: string) => {
+    return content.split('\n').map(line => line.replace(/^\[[\d:.]+\]\s*/, '')).filter(line => !line.startsWith('[') || line.includes(']')).map(line => line.startsWith('[') ? '' : line).join('\n').trim();
+  };
+
+  const handleCopyLyrics = async () => {
+    try {
+      const textToCopy = lyricsTab === "synced" ? lyricsContent : getPlainLyrics(lyricsContent);
+      await navigator.clipboard.writeText(textToCopy);
+      setCopySuccess(true);
+      setTimeout(() => setCopySuccess(false), 500);
+    } catch { toast.error("Failed to copy lyrics"); }
+  };
+
+  const handleManualRename = (filePath: string, e: React.MouseEvent) => {
+    e.stopPropagation();
+    const fileName = filePath.split(/[/\\]/).pop() || "";
+    const nameWithoutExt = fileName.replace(/\.[^.]+$/, "");
+    setManualRenameFile(filePath);
+    setManualRenameName(nameWithoutExt);
+    setShowManualRename(true);
+  };
+
+  const handleConfirmManualRename = async () => {
+    if (!manualRenameFile || !manualRenameName.trim()) return;
+    setManualRenaming(true);
+    try {
+      await RenameFileTo(manualRenameFile, manualRenameName.trim());
+      toast.success("File renamed successfully");
+      setShowManualRename(false);
+      loadFiles();
+    } catch (err) {
+      toast.error("Failed to rename file", { description: err instanceof Error ? err.message : "Unknown error" });
+    } finally {
+      setManualRenaming(false);
+    }
+  };
+
+  const handleRename = async () => {
+    if (selectedFiles.size === 0) return;
+    setRenaming(true);
+    try {
+      const result = await RenameFilesByMetadata(Array.from(selectedFiles), renameFormat);
+      const successCount = result.filter((r: backend.RenameResult) => r.success).length;
+      const failCount = result.filter((r: backend.RenameResult) => !r.success).length;
+      if (successCount > 0) toast.success("Rename Complete", { description: `${successCount} file(s) renamed${failCount > 0 ? `, ${failCount} failed` : ""}` });
+      else toast.error("Rename Failed", { description: `All ${failCount} file(s) failed to rename` });
+      setShowPreview(false);
+      setSelectedFiles(new Set());
+      loadFiles();
+    } catch (err) {
+      toast.error("Rename Failed", { description: err instanceof Error ? err.message : "Unknown error" });
+    } finally {
+      setRenaming(false);
+    }
+  };
+
+  const renderTrackTree = (nodes: FileNode[], depth = 0) => {
+    return nodes.map((node) => (
+      <div key={node.path}>
+        <div
+          className={`flex items-center gap-2 py-1.5 px-2 rounded hover:bg-muted/50 cursor-pointer ${selectedFiles.has(node.path) ? "bg-primary/10" : ""}`}
+          style={{ paddingLeft: `${depth * 16 + 8}px` }}
+          onClick={() => (node.is_dir ? toggleExpand(node.path) : toggleSelect(node.path))}
+        >
+          {node.is_dir ? (
+            <>
+              <Checkbox
+                checked={isFolderSelected(node) === true}
+                ref={(el) => { if (el) (el as HTMLButtonElement).dataset.state = isFolderSelected(node) === "indeterminate" ? "indeterminate" : isFolderSelected(node) ? "checked" : "unchecked"; }}
+                onCheckedChange={() => toggleFolderSelect(node)}
+                onClick={(e) => e.stopPropagation()}
+                className="shrink-0 data-[state=indeterminate]:bg-primary data-[state=indeterminate]:text-primary-foreground"
+              />
+              {node.expanded ? <ChevronDown className="h-4 w-4 text-muted-foreground shrink-0" /> : <ChevronRight className="h-4 w-4 text-muted-foreground shrink-0" />}
+              <Folder className="h-4 w-4 text-yellow-500 shrink-0" />
+            </>
+          ) : (
+            <>
+              <Checkbox checked={selectedFiles.has(node.path)} onCheckedChange={() => toggleSelect(node.path)} onClick={(e) => e.stopPropagation()} className="shrink-0" />
+              <FileMusic className="h-4 w-4 text-primary shrink-0" />
+            </>
+          )}
+          <span className="truncate text-sm flex-1">
+            {node.name}
+            {node.is_dir && <span className="text-muted-foreground ml-1">({getAllFilesFlat([node]).length})</span>}
+          </span>
+          {!node.is_dir && (
+            <>
+              <span className="text-xs text-muted-foreground shrink-0">{formatFileSize(node.size)}</span>
+              <Tooltip>
+                <TooltipTrigger asChild>
+                  <button className="p-1 rounded hover:bg-muted shrink-0" onClick={(e) => handleShowMetadata(node.path, e)}>
+                    <Info className="h-3.5 w-3.5 text-muted-foreground" />
+                  </button>
+                </TooltipTrigger>
+                <TooltipContent>View Metadata</TooltipContent>
+              </Tooltip>
+            </>
+          )}
+        </div>
+        {node.is_dir && node.expanded && node.children && <div>{renderTrackTree(node.children, depth + 1)}</div>}
+      </div>
+    ));
+  };
+
+  const renderLyricTree = (nodes: FileNode[], depth = 0) => {
+    return nodes.map((node) => (
+      <div key={node.path}>
+        <div
+          className="flex items-center gap-2 py-1.5 px-2 rounded hover:bg-muted/50 cursor-pointer"
+          style={{ paddingLeft: `${depth * 16 + 8}px` }}
+          onClick={(e) => node.is_dir ? toggleExpand(node.path) : handleShowLyrics(node.path, e)}
+        >
+          {node.is_dir ? (
+            <>
+              {node.expanded ? <ChevronDown className="h-4 w-4 text-muted-foreground shrink-0" /> : <ChevronRight className="h-4 w-4 text-muted-foreground shrink-0" />}
+              <Folder className="h-4 w-4 text-yellow-500 shrink-0" />
+            </>
+          ) : (
+            <FileText className="h-4 w-4 text-blue-500 shrink-0" />
+          )}
+          <span className="truncate text-sm flex-1">
+            {node.name}
+            {node.is_dir && <span className="text-muted-foreground ml-1">({getAllFilesFlat([node]).length})</span>}
+          </span>
+          {!node.is_dir && (
+            <>
+              <span className="text-xs text-muted-foreground shrink-0">{formatFileSize(node.size)}</span>
+              <Tooltip>
+                <TooltipTrigger asChild>
+                  <button className="p-1 rounded hover:bg-muted shrink-0" onClick={(e) => handleManualRename(node.path, e)}>
+                    <Pencil className="h-3.5 w-3.5 text-muted-foreground" />
+                  </button>
+                </TooltipTrigger>
+                <TooltipContent>Rename</TooltipContent>
+              </Tooltip>
+            </>
+          )}
+        </div>
+        {node.is_dir && node.expanded && node.children && <div>{renderLyricTree(node.children, depth + 1)}</div>}
+      </div>
+    ));
+  };
+
+  const renderCoverTree = (nodes: FileNode[], depth = 0) => {
+    return nodes.map((node) => (
+      <div key={node.path}>
+        <div
+          className="flex items-center gap-2 py-1.5 px-2 rounded hover:bg-muted/50 cursor-pointer"
+          style={{ paddingLeft: `${depth * 16 + 8}px` }}
+          onClick={(e) => node.is_dir ? toggleExpand(node.path) : handleShowCover(node.path, e)}
+        >
+          {node.is_dir ? (
+            <>
+              {node.expanded ? <ChevronDown className="h-4 w-4 text-muted-foreground shrink-0" /> : <ChevronRight className="h-4 w-4 text-muted-foreground shrink-0" />}
+              <Folder className="h-4 w-4 text-yellow-500 shrink-0" />
+            </>
+          ) : (
+            <Image className="h-4 w-4 text-green-500 shrink-0" />
+          )}
+          <span className="truncate text-sm flex-1">
+            {node.name}
+            {node.is_dir && <span className="text-muted-foreground ml-1">({getAllFilesFlat([node]).length})</span>}
+          </span>
+          {!node.is_dir && (
+            <>
+              <span className="text-xs text-muted-foreground shrink-0">{formatFileSize(node.size)}</span>
+              <Tooltip>
+                <TooltipTrigger asChild>
+                  <button className="p-1 rounded hover:bg-muted shrink-0" onClick={(e) => handleManualRename(node.path, e)}>
+                    <Pencil className="h-3.5 w-3.5 text-muted-foreground" />
+                  </button>
+                </TooltipTrigger>
+                <TooltipContent>Rename</TooltipContent>
+              </Tooltip>
+            </>
+          )}
+        </div>
+        {node.is_dir && node.expanded && node.children && <div>{renderCoverTree(node.children, depth + 1)}</div>}
+      </div>
+    ));
+  };
+
+  const allSelected = allAudioFiles.length > 0 && selectedFiles.size === allAudioFiles.length;
+
+  return (
+    <div className={`space-y-6 ${isFullscreen ? "h-full flex flex-col" : ""}`}>
+      <div className="flex items-center justify-between shrink-0">
+        <h1 className="text-2xl font-bold">File Manager</h1>
+      </div>
+
+      {/* Path Selection */}
+      <div className="flex items-center gap-2 shrink-0">
+        <InputWithContext value={rootPath} onChange={(e) => setRootPath(e.target.value)} placeholder="Select a folder..." className="flex-1" />
+        <Button onClick={handleSelectFolder}>
+          <FolderOpen className="h-4 w-4" />
+          Browse
+        </Button>
+        <Button variant="outline" onClick={loadFiles} disabled={loading || !rootPath}>
+          <RefreshCw className={`h-4 w-4 ${loading ? "animate-spin" : ""}`} />
+          Refresh
+        </Button>
+      </div>
+
+      {/* Tabs */}
+      <div className="flex gap-2 border-b shrink-0">
+        <Button variant={activeTab === "track" ? "default" : "ghost"} size="sm" onClick={() => setActiveTab("track")} className="rounded-b-none">
+          <FileMusic className="h-4 w-4" />
+          Track ({allAudioFiles.length})
+        </Button>
+        <Button variant={activeTab === "lyric" ? "default" : "ghost"} size="sm" onClick={() => setActiveTab("lyric")} className="rounded-b-none">
+          <FileText className="h-4 w-4" />
+          Lyric ({allLyricFiles.length})
+        </Button>
+        <Button variant={activeTab === "cover" ? "default" : "ghost"} size="sm" onClick={() => setActiveTab("cover")} className="rounded-b-none">
+          <Image className="h-4 w-4" />
+          Cover ({allCoverFiles.length})
+        </Button>
+      </div>
+
+      {/* Rename Format - Only for Track tab */}
+      {activeTab === "track" && (
+        <div className="space-y-2 shrink-0">
+          <div className="flex items-center gap-2">
+            <Label className="text-sm">Rename Format</Label>
+            <Tooltip>
+              <TooltipTrigger asChild>
+                <Info className="h-3.5 w-3.5 text-muted-foreground cursor-help" />
+              </TooltipTrigger>
+              <TooltipContent side="right">
+                <p className="text-xs whitespace-nowrap">Variables: {"{title}"}, {"{artist}"}, {"{album}"}, {"{album_artist}"}, {"{track}"}, {"{disc}"}, {"{year}"}</p>
+              </TooltipContent>
+            </Tooltip>
+          </div>
+          <div className="flex items-center gap-2">
+            <Select value={formatPreset} onValueChange={setFormatPreset}>
+              <SelectTrigger><SelectValue /></SelectTrigger>
+              <SelectContent>
+                {Object.entries(FORMAT_PRESETS).map(([key, { label }]) => (
+                  <SelectItem key={key} value={key}>{label}</SelectItem>
+                ))}
+              </SelectContent>
+            </Select>
+            {formatPreset === "custom" && (
+              <InputWithContext value={customFormat} onChange={(e) => setCustomFormat(e.target.value)} placeholder="{artist} - {title}" className="flex-1" />
+            )}
+            <Tooltip>
+              <TooltipTrigger asChild>
+                <Button variant="ghost" size="icon" onClick={() => setShowResetConfirm(true)}>
+                  <RotateCcw className="h-4 w-4" />
+                </Button>
+              </TooltipTrigger>
+              <TooltipContent>Reset to Default</TooltipContent>
+            </Tooltip>
+          </div>
+          <p className="text-xs text-muted-foreground">
+            Preview: <span className="font-mono">{renameFormat.replace(/\{title\}/g, "All The Stars").replace(/\{artist\}/g, "Kendrick Lamar, SZA").replace(/\{album\}/g, "Black Panther").replace(/\{album_artist\}/g, "Kendrick Lamar").replace(/\{track\}/g, "01").replace(/\{disc\}/g, "1").replace(/\{year\}/g, "2018")}.flac</span>
+          </p>
+        </div>
+      )}
+
+      {/* File Tree */}
+      <div className={`border rounded-lg ${isFullscreen ? "flex-1 flex flex-col min-h-0" : ""}`}>
+        {activeTab === "track" && (
+          <div className="flex items-center justify-between p-3 border-b bg-muted/30 shrink-0">
+            <div className="flex items-center gap-4">
+              <Button variant="ghost" size="sm" onClick={allSelected ? deselectAll : selectAll}>
+                {allSelected ? "Deselect All" : "Select All"}
+              </Button>
+              <span className="text-sm text-muted-foreground">{selectedFiles.size} of {allAudioFiles.length} file(s) selected</span>
+            </div>
+            <div className="flex items-center gap-2">
+              <Button variant="outline" size="sm" onClick={() => handlePreview(true)} disabled={selectedFiles.size === 0 || loading}>
+                <Eye className="h-4 w-4" />
+                Preview
+              </Button>
+              <Button size="sm" onClick={() => handlePreview(false)} disabled={selectedFiles.size === 0 || loading}>
+                <Pencil className="h-4 w-4" />
+                Rename
+              </Button>
+            </div>
+          </div>
+        )}
+
+        <div className={`overflow-y-auto p-2 ${isFullscreen ? "flex-1 min-h-0" : "max-h-[400px]"}`}>
+          {loading ? (
+            <div className="flex items-center justify-center py-8"><Spinner className="h-6 w-6" /></div>
+          ) : filteredFiles.length === 0 ? (
+            <div className="text-center py-8 text-muted-foreground">
+              {rootPath ? `No ${activeTab} files found` : "Select a folder to browse"}
+            </div>
+          ) : (
+            activeTab === "track" ? renderTrackTree(filteredFiles) :
+            activeTab === "lyric" ? renderLyricTree(filteredFiles) :
+            renderCoverTree(filteredFiles)
+          )}
+        </div>
+      </div>
+
+      {/* Reset Confirmation Dialog */}
+      <Dialog open={showResetConfirm} onOpenChange={setShowResetConfirm}>
+        <DialogContent className="max-w-md [&>button]:hidden">
+          <DialogHeader>
+            <DialogTitle>Reset to Default?</DialogTitle>
+            <DialogDescription>This will reset the rename format to "Title - Artist". Your custom format will be lost.</DialogDescription>
+          </DialogHeader>
+          <DialogFooter>
+            <Button variant="outline" onClick={() => setShowResetConfirm(false)}>Cancel</Button>
+            <Button onClick={resetToDefault}>Reset</Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+
+      {/* Preview Dialog */}
+      <Dialog open={showPreview} onOpenChange={setShowPreview}>
+        <DialogContent className="max-w-2xl max-h-[80vh] overflow-hidden flex flex-col [&>button]:hidden">
+          <DialogHeader>
+            <DialogTitle>Rename Preview</DialogTitle>
+            <DialogDescription>Review the changes before renaming. Files with errors will be skipped.</DialogDescription>
+          </DialogHeader>
+          <div className="flex-1 overflow-y-auto space-y-2 py-4">
+            {previewData.map((item, index) => (
+              <div key={index} className={`p-3 rounded-lg border ${item.error ? "border-destructive/50 bg-destructive/5" : "border-border"}`}>
+                <div className="text-sm">
+                  <div className="text-muted-foreground break-all">{item.old_name}</div>
+                  {item.error ? <div className="text-destructive text-xs mt-1">{item.error}</div> : <div className="text-primary font-medium break-all mt-1">→ {item.new_name}</div>}
+                </div>
+              </div>
+            ))}
+          </div>
+          <DialogFooter>
+            {previewOnly ? (
+              <Button onClick={() => setShowPreview(false)}>Close</Button>
+            ) : (
+              <>
+                <Button variant="outline" onClick={() => setShowPreview(false)}>Cancel</Button>
+                <Button onClick={handleRename} disabled={renaming}>
+                  {renaming ? <><Spinner className="h-4 w-4" />Renaming...</> : <>Rename {previewData.filter((p) => !p.error).length} File(s)</>}
+                </Button>
+              </>
+            )}
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+
+      {/* Metadata Dialog */}
+      <Dialog open={showMetadata} onOpenChange={setShowMetadata}>
+        <DialogContent className="max-w-md [&>button]:hidden">
+          <DialogHeader>
+            <DialogTitle>File Metadata</DialogTitle>
+            <DialogDescription className="break-all">{metadataFile.split(/[/\\]/).pop()}</DialogDescription>
+          </DialogHeader>
+          {loadingMetadata ? (
+            <div className="flex items-center justify-center py-8"><Spinner className="h-6 w-6" /></div>
+          ) : metadataInfo ? (
+            <div className="space-y-3 py-2">
+              <div className="grid grid-cols-[100px_1fr] gap-2 text-sm"><span className="text-muted-foreground">Title</span><span>{metadataInfo.title || "-"}</span></div>
+              <div className="grid grid-cols-[100px_1fr] gap-2 text-sm"><span className="text-muted-foreground">Artist</span><span>{metadataInfo.artist || "-"}</span></div>
+              <div className="grid grid-cols-[100px_1fr] gap-2 text-sm"><span className="text-muted-foreground">Album</span><span>{metadataInfo.album || "-"}</span></div>
+              <div className="grid grid-cols-[100px_1fr] gap-2 text-sm"><span className="text-muted-foreground">Album Artist</span><span>{metadataInfo.album_artist || "-"}</span></div>
+              <div className="grid grid-cols-[100px_1fr] gap-2 text-sm"><span className="text-muted-foreground">Track</span><span>{metadataInfo.track_number || "-"}</span></div>
+              <div className="grid grid-cols-[100px_1fr] gap-2 text-sm"><span className="text-muted-foreground">Disc</span><span>{metadataInfo.disc_number || "-"}</span></div>
+              <div className="grid grid-cols-[100px_1fr] gap-2 text-sm"><span className="text-muted-foreground">Year</span><span>{metadataInfo.year ? metadataInfo.year.substring(0, 4) : "-"}</span></div>
+            </div>
+          ) : (
+            <div className="text-center py-4 text-muted-foreground">No metadata available</div>
+          )}
+          <DialogFooter><Button onClick={() => setShowMetadata(false)}>Close</Button></DialogFooter>
+        </DialogContent>
+      </Dialog>
+
+      {/* FFprobe Install Dialog */}
+      <Dialog open={showFFprobeDialog} onOpenChange={setShowFFprobeDialog}>
+        <DialogContent className="max-w-md [&>button]:hidden">
+          <DialogHeader>
+            <DialogTitle>FFprobe Required</DialogTitle>
+            <DialogDescription>Reading M4A metadata requires FFprobe. Would you like to download and install it now?</DialogDescription>
+          </DialogHeader>
+          <DialogFooter>
+            <Button variant="outline" onClick={() => setShowFFprobeDialog(false)} disabled={installingFFprobe}>Cancel</Button>
+            <Button onClick={handleInstallFFprobe} disabled={installingFFprobe}>
+              {installingFFprobe ? <><Spinner className="h-4 w-4" />Installing...</> : "Install FFprobe"}
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+
+      {/* Lyrics Preview Dialog */}
+      <Dialog open={showLyricsPreview} onOpenChange={setShowLyricsPreview}>
+        <DialogContent className="max-w-lg max-h-[80vh] overflow-hidden flex flex-col [&>button]:hidden">
+          <DialogHeader>
+            <DialogTitle>Lyrics Preview</DialogTitle>
+            <DialogDescription className="break-all">{lyricsFile.split(/[/\\]/).pop()}</DialogDescription>
+          </DialogHeader>
+          <div className="flex gap-2 border-b pb-2">
+            <Button variant={lyricsTab === "synced" ? "default" : "ghost"} size="sm" onClick={() => setLyricsTab("synced")}>Synced</Button>
+            <Button variant={lyricsTab === "plain" ? "default" : "ghost"} size="sm" onClick={() => setLyricsTab("plain")}>Plain</Button>
+          </div>
+          <div className="flex-1 overflow-y-auto py-4">
+            <pre className="text-sm whitespace-pre-wrap font-mono bg-muted/30 p-4 rounded-lg">
+              {lyricsTab === "synced" ? lyricsContent : getPlainLyrics(lyricsContent) || "No lyrics content"}
+            </pre>
+          </div>
+          <DialogFooter>
+            <Button variant="outline" onClick={handleCopyLyrics} className="gap-1.5">
+              {copySuccess ? <Check className="h-4 w-4" /> : <Copy className="h-4 w-4" />}
+              Copy
+            </Button>
+            <Button onClick={() => setShowLyricsPreview(false)}>Close</Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+
+      {/* Cover Preview Dialog */}
+      <Dialog open={showCoverPreview} onOpenChange={setShowCoverPreview}>
+        <DialogContent className="max-w-lg [&>button]:hidden">
+          <DialogHeader>
+            <DialogTitle>Cover Preview</DialogTitle>
+            <DialogDescription className="break-all">{coverFile.split(/[/\\]/).pop()}</DialogDescription>
+          </DialogHeader>
+          <div className="flex items-center justify-center p-4">
+            {coverData ? <img src={coverData} alt="Cover" className="max-w-full max-h-[350px] rounded-lg object-contain" /> : <div className="text-muted-foreground">Loading...</div>}
+          </div>
+          <DialogFooter><Button onClick={() => setShowCoverPreview(false)}>Close</Button></DialogFooter>
+        </DialogContent>
+      </Dialog>
+
+      {/* Manual Rename Dialog */}
+      <Dialog open={showManualRename} onOpenChange={setShowManualRename}>
+        <DialogContent className="max-w-2xl [&>button]:hidden">
+          <DialogHeader>
+            <DialogTitle>Rename File</DialogTitle>
+            <DialogDescription className="break-all">{manualRenameFile.split(/[/\\]/).pop()}</DialogDescription>
+          </DialogHeader>
+          <div className="py-4">
+            <Label htmlFor="newName" className="text-sm">New Name</Label>
+            <div className="flex items-center gap-2 mt-2">
+              <InputWithContext id="newName" value={manualRenameName} onChange={(e) => setManualRenameName(e.target.value)} placeholder="Enter new name" className="flex-1" onKeyDown={(e) => { if (e.key === "Enter" && !manualRenaming) handleConfirmManualRename(); }} />
+              <span className="text-sm text-muted-foreground shrink-0">{manualRenameFile.match(/\.[^.]+$/)?.[0] || ""}</span>
+            </div>
+          </div>
+          <DialogFooter>
+            <Button variant="outline" onClick={() => setShowManualRename(false)} disabled={manualRenaming}>Cancel</Button>
+            <Button onClick={handleConfirmManualRename} disabled={manualRenaming || !manualRenameName.trim()}>
+              {manualRenaming ? <><Spinner className="h-4 w-4" />Renaming...</> : "Rename"}
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+    </div>
+  );
+}
@@ -0,0 +1,66 @@
+import { Badge } from "@/components/ui/badge";
+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;
+}
+
+export function Header({ version, hasUpdate, releaseDate }: HeaderProps) {
+  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()}
+          >
+            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"
+                  >
+                    v{version}
+                  </button>
+                </Badge>
+              </TooltipTrigger>
+              {hasUpdate && releaseDate && (
+                <TooltipContent>
+                  <p>{formatRelativeTime(releaseDate)}</p>
+                </TooltipContent>
+              )}
+            </Tooltip>
+            {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>
+            )}
+          </div>
+        </div>
+        <p className="text-muted-foreground">
+          Get Spotify tracks in true FLAC from Tidal, Qobuz & Amazon Music — no account required.
+        </p>
+      </div>
+    </div>
+  );
+}
@@ -0,0 +1,22 @@
+// Platform Icons for streaming services
+
+export const TidalIcon = ({ className = "w-4 h-4" }: { className?: string }) => (
+  <svg viewBox="0 0 24 24" className={`${className} fill-current`}>
+    <path d="M4.022 4.5 0 8.516l3.997 3.99 3.997-3.984L4.022 4.5Zm7.956 0L7.994 8.522l4.003 3.984L16 8.484 11.978 4.5Zm8.007 0L24 8.528l-4.003 3.978L16 8.484 19.985 4.5Z"></path>
+    <path d="m8.012 16.534 3.991 3.966L16 16.49l-4.003-3.984-3.985 4.028Z"></path>
+  </svg>
+);
+
+export const QobuzIcon = ({ className = "w-4 h-4" }: { className?: string }) => (
+  <svg viewBox="0 0 24 24" className={`${className} fill-current`}>
+    <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`}>
+    <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>
+);
@@ -0,0 +1,266 @@
+import { Button } from "@/components/ui/button";
+import { Card, CardContent } from "@/components/ui/card";
+import { Download, FolderOpen, ImageDown, FileText } 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;
+    };
+    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;
+}
+
+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>
+        <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"
+              />
+            )}
+            <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>
+                <div className="flex items-center gap-2 text-sm">
+                  <span className="font-medium">{playlistInfo.owner.display_name}</span>
+                  <span>•</span>
+                  <span>
+                    {playlistInfo.tracks.total} {playlistInfo.tracks.total === 1 ? "song" : "songs"}
+                  </span>
+                  <span>•</span>
+                  <span>{playlistInfo.followers.total.toLocaleString()} 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" />
+                  )}
+                  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>
+                    <TooltipTrigger asChild>
+                      <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>
+                    <TooltipTrigger asChild>
+                      <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" />
+                    Open Folder
+                  </Button>
+                )}
+              </div>
+              {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}
+        />
+      </div>
+    </div>
+  );
+}
@@ -0,0 +1,63 @@
+import { Input } from "@/components/ui/input";
+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;
+}
+
+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>
+        )}
+      </div>
+      <Select value={sortBy} onValueChange={onSortChange}>
+        <SelectTrigger className="w-[200px] gap-1.5">
+          <ArrowUpDown className="h-4 w-4" />
+          <SelectValue placeholder="Sort by" />
+        </SelectTrigger>
+        <SelectContent>
+          <SelectItem value="default">Default</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>
+          <SelectItem value="downloaded">Downloaded</SelectItem>
+          <SelectItem value="not-downloaded">Not Downloaded</SelectItem>
+        </SelectContent>
+      </Select>
+    </div>
+  );
+}
@@ -0,0 +1,551 @@
+import { useState, useEffect, useRef } from "react";
+import { Button } from "@/components/ui/button";
+import { InputWithContext } from "@/components/ui/input-with-context";
+import { CloudDownload, Info, XCircle, Link, Search, X, ChevronDown } from "lucide-react";
+import { Spinner } from "@/components/ui/spinner";
+import {
+  Tooltip,
+  TooltipContent,
+  TooltipTrigger,
+} from "@/components/ui/tooltip";
+import { FetchHistory } from "@/components/FetchHistory";
+import type { HistoryItem } from "@/components/FetchHistory";
+import { SearchSpotify, SearchSpotifyByType } from "../../wailsjs/go/main/App";
+import { backend } from "../../wailsjs/go/models";
+import { cn } from "@/lib/utils";
+
+type ResultTab = "tracks" | "albums" | "artists" | "playlists";
+
+const RECENT_SEARCHES_KEY = "spotiflac_recent_searches";
+const MAX_RECENT_SEARCHES = 8;
+const SEARCH_LIMIT = 50;
+
+interface SearchBarProps {
+  url: string;
+  loading: boolean;
+  onUrlChange: (url: string) => void;
+  onFetch: () => void;
+  onFetchUrl: (url: string) => Promise<void>;
+  history: HistoryItem[];
+  onHistorySelect: (item: HistoryItem) => void;
+  onHistoryRemove: (id: string) => void;
+  hasResult: boolean;
+  searchMode: boolean;
+  onSearchModeChange: (isSearch: boolean) => void;
+}
+
+export function SearchBar({
+  url,
+  loading,
+  onUrlChange,
+  onFetch,
+  onFetchUrl,
+  history,
+  onHistorySelect,
+  onHistoryRemove,
+  hasResult,
+  searchMode,
+  onSearchModeChange,
+}: SearchBarProps) {
+  const [searchQuery, setSearchQuery] = useState("");
+  const [searchResults, setSearchResults] = useState<backend.SearchResponse | null>(null);
+  const [isSearching, setIsSearching] = useState(false);
+  const [isLoadingMore, setIsLoadingMore] = useState(false);
+  const [lastSearchedQuery, setLastSearchedQuery] = useState("");
+  const [activeTab, setActiveTab] = useState<ResultTab>("tracks");
+  const [recentSearches, setRecentSearches] = useState<string[]>([]);
+  const [hasMore, setHasMore] = useState<Record<ResultTab, boolean>>({
+    tracks: false,
+    albums: false,
+    artists: false,
+    playlists: false,
+  });
+  const searchTimeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null);
+
+  // Load recent searches from localStorage
+  useEffect(() => {
+    try {
+      const saved = localStorage.getItem(RECENT_SEARCHES_KEY);
+      if (saved) {
+        setRecentSearches(JSON.parse(saved));
+      }
+    } catch (error) {
+      console.error("Failed to load recent searches:", error);
+    }
+  }, []);
+
+  const saveRecentSearch = (query: string) => {
+    const trimmed = query.trim();
+    if (!trimmed) return;
+    
+    setRecentSearches((prev) => {
+      const filtered = prev.filter((s) => s.toLowerCase() !== trimmed.toLowerCase());
+      const updated = [trimmed, ...filtered].slice(0, MAX_RECENT_SEARCHES);
+      try {
+        localStorage.setItem(RECENT_SEARCHES_KEY, JSON.stringify(updated));
+      } catch (error) {
+        console.error("Failed to save recent searches:", error);
+      }
+      return updated;
+    });
+  };
+
+  const removeRecentSearch = (query: string) => {
+    setRecentSearches((prev) => {
+      const updated = prev.filter((s) => s !== query);
+      try {
+        localStorage.setItem(RECENT_SEARCHES_KEY, JSON.stringify(updated));
+      } catch (error) {
+        console.error("Failed to save recent searches:", error);
+      }
+      return updated;
+    });
+  };
+
+  // Debounced search - only search if query changed
+  useEffect(() => {
+    if (!searchMode || !searchQuery.trim()) {
+      return;
+    }
+
+    // Don't search again if query is the same
+    if (searchQuery.trim() === lastSearchedQuery) {
+      return;
+    }
+
+    if (searchTimeoutRef.current) {
+      clearTimeout(searchTimeoutRef.current);
+    }
+
+    searchTimeoutRef.current = setTimeout(async () => {
+      setIsSearching(true);
+      try {
+        const results = await SearchSpotify({ query: searchQuery, limit: SEARCH_LIMIT });
+        setSearchResults(results);
+        setLastSearchedQuery(searchQuery.trim());
+        saveRecentSearch(searchQuery.trim());
+        
+        // Check if there might be more results
+        setHasMore({
+          tracks: results.tracks.length === SEARCH_LIMIT,
+          albums: results.albums.length === SEARCH_LIMIT,
+          artists: results.artists.length === SEARCH_LIMIT,
+          playlists: results.playlists.length === SEARCH_LIMIT,
+        });
+        
+        // Auto-select first tab with results
+        if (results.tracks.length > 0) setActiveTab("tracks");
+        else if (results.albums.length > 0) setActiveTab("albums");
+        else if (results.artists.length > 0) setActiveTab("artists");
+        else if (results.playlists.length > 0) setActiveTab("playlists");
+      } catch (error) {
+        console.error("Search failed:", error);
+        setSearchResults(null);
+      } finally {
+        setIsSearching(false);
+      }
+    }, 400);
+
+    return () => {
+      if (searchTimeoutRef.current) {
+        clearTimeout(searchTimeoutRef.current);
+      }
+    };
+  }, [searchQuery, searchMode, lastSearchedQuery]);
+
+  const handleLoadMore = async () => {
+    if (!searchResults || !lastSearchedQuery || isLoadingMore) return;
+
+    const typeMap: Record<ResultTab, string> = {
+      tracks: "track",
+      albums: "album",
+      artists: "artist",
+      playlists: "playlist",
+    };
+
+    const currentCount = getTabCount(activeTab);
+    
+    setIsLoadingMore(true);
+    try {
+      const moreResults = await SearchSpotifyByType({
+        query: lastSearchedQuery,
+        search_type: typeMap[activeTab],
+        limit: SEARCH_LIMIT,
+        offset: currentCount,
+      });
+
+      if (moreResults.length > 0) {
+        setSearchResults((prev) => {
+          if (!prev) return prev;
+          // Create new SearchResponse with updated array for the active tab
+          const updated = new backend.SearchResponse({
+            tracks: activeTab === "tracks" ? [...prev.tracks, ...moreResults] : prev.tracks,
+            albums: activeTab === "albums" ? [...prev.albums, ...moreResults] : prev.albums,
+            artists: activeTab === "artists" ? [...prev.artists, ...moreResults] : prev.artists,
+            playlists: activeTab === "playlists" ? [...prev.playlists, ...moreResults] : prev.playlists,
+          });
+          return updated;
+        });
+      }
+
+      // Update hasMore for this tab
+      setHasMore((prev) => ({
+        ...prev,
+        [activeTab]: moreResults.length === SEARCH_LIMIT,
+      }));
+    } catch (error) {
+      console.error("Load more failed:", error);
+    } finally {
+      setIsLoadingMore(false);
+    }
+  };
+
+  const handleResultClick = (externalUrl: string) => {
+    onSearchModeChange(false);
+    onFetchUrl(externalUrl);
+  };
+
+  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 hasAnyResults = searchResults && (
+    searchResults.tracks.length > 0 ||
+    searchResults.albums.length > 0 ||
+    searchResults.artists.length > 0 ||
+    searchResults.playlists.length > 0
+  );
+
+  const getTabCount = (tab: ResultTab): number => {
+    if (!searchResults) return 0;
+    switch (tab) {
+      case "tracks": return searchResults.tracks.length;
+      case "albums": return searchResults.albums.length;
+      case "artists": return searchResults.artists.length;
+      case "playlists": return searchResults.playlists.length;
+    }
+  };
+
+  const tabs: { key: ResultTab; label: string }[] = [
+    { key: "tracks", label: "Tracks" },
+    { key: "albums", label: "Albums" },
+    { key: "artists", label: "Artists" },
+    { key: "playlists", label: "Playlists" },
+  ];
+
+  return (
+    <div className="space-y-4">
+      <div className="space-y-2">
+        <div className="flex items-center gap-2">
+          {/* Mode Toggle */}
+          <div className="flex items-center bg-muted rounded-md p-1">
+            <button
+              type="button"
+              onClick={() => onSearchModeChange(false)}
+              className={cn(
+                "flex items-center gap-1.5 px-2.5 py-1 rounded text-sm font-medium transition-colors cursor-pointer",
+                !searchMode
+                  ? "bg-background text-foreground shadow-sm"
+                  : "text-muted-foreground hover:text-foreground"
+              )}
+            >
+              <Link className="h-3.5 w-3.5" />
+              URL
+            </button>
+            <button
+              type="button"
+              onClick={() => onSearchModeChange(true)}
+              className={cn(
+                "flex items-center gap-1.5 px-2.5 py-1 rounded text-sm font-medium transition-colors cursor-pointer",
+                searchMode
+                  ? "bg-background text-foreground shadow-sm"
+                  : "text-muted-foreground hover:text-foreground"
+              )}
+            >
+              <Search className="h-3.5 w-3.5" />
+              Search
+            </button>
+          </div>
+          
+          <Tooltip>
+            <TooltipTrigger asChild>
+              <Info className="h-4 w-4 text-muted-foreground cursor-help" />
+            </TooltipTrigger>
+            <TooltipContent side="right">
+              {!searchMode ? (
+                <>
+                  <p>Supports track, album, playlist, and artist URLs</p>
+                  <p className="mt-1">Note: Playlist must be public (not private)</p>
+                </>
+              ) : (
+                <p>Search for tracks, albums, artists, or playlists</p>
+              )}
+            </TooltipContent>
+          </Tooltip>
+        </div>
+
+        <div className="flex gap-2">
+          <div className="relative flex-1">
+            {!searchMode ? (
+              <>
+                <InputWithContext
+                  id="spotify-url"
+                  placeholder="https://open.spotify.com/..."
+                  value={url}
+                  onChange={(e) => onUrlChange(e.target.value)}
+                  onKeyDown={(e) => e.key === "Enter" && onFetch()}
+                  className="pr-8"
+                />
+                {url && (
+                  <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={() => onUrlChange("")}
+                  >
+                    <XCircle className="h-4 w-4" />
+                  </button>
+                )}
+              </>
+            ) : (
+              <>
+                <InputWithContext
+                  id="spotify-search"
+                  placeholder="Search tracks, albums, artists..."
+                  value={searchQuery}
+                  onChange={(e) => setSearchQuery(e.target.value)}
+                  className="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={() => {
+                      setSearchQuery("");
+                      setSearchResults(null);
+                      setLastSearchedQuery("");
+                    }}
+                  >
+                    <XCircle className="h-4 w-4" />
+                  </button>
+                )}
+              </>
+            )}
+          </div>
+
+          {!searchMode && (
+            <Button onClick={onFetch} disabled={loading}>
+              {loading ? (
+                <>
+                  <Spinner />
+                  Fetching...
+                </>
+              ) : (
+                <>
+                  <CloudDownload className="h-4 w-4" />
+                  Fetch
+                </>
+              )}
+            </Button>
+          )}
+        </div>
+      </div>
+
+      {!searchMode && !hasResult && (
+        <FetchHistory
+          history={history}
+          onSelect={onHistorySelect}
+          onRemove={onHistoryRemove}
+        />
+      )}
+
+      {/* Search Results with Tabs */}
+      {searchMode && (
+        <div className="space-y-4">
+          {/* Recent Searches - show when no query or no results yet */}
+          {!searchQuery && !searchResults && recentSearches.length > 0 && (
+            <div className="space-y-2">
+              <p className="text-sm text-muted-foreground">Recent Searches</p>
+              <div className="flex flex-wrap gap-2">
+                {recentSearches.map((query) => (
+                  <div
+                    key={query}
+                    className="group relative flex items-center px-3 py-1.5 bg-muted hover:bg-accent rounded-full text-sm cursor-pointer transition-colors"
+                    onClick={() => setSearchQuery(query)}
+                  >
+                    <span>{query}</span>
+                    <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();
+                        removeRecentSearch(query);
+                      }}
+                    >
+                      <X className="h-3 w-3 text-red-900" strokeWidth={3} />
+                    </button>
+                  </div>
+                ))}
+              </div>
+            </div>
+          )}
+
+          {isSearching && (
+            <div className="flex items-center justify-center py-8">
+              <Spinner />
+              <span className="ml-2 text-muted-foreground">Searching...</span>
+            </div>
+          )}
+
+          {!isSearching && searchQuery && !hasAnyResults && (
+            <div className="text-center py-8 text-muted-foreground">
+              No results found for "{searchQuery}"
+            </div>
+          )}
+
+          {!isSearching && hasAnyResults && (
+            <>
+              {/* Tabs */}
+              <div className="flex gap-1 border-b">
+                {tabs.map((tab) => {
+                  const count = getTabCount(tab.key);
+                  if (count === 0) return null;
+                  return (
+                    <button
+                      key={tab.key}
+                      type="button"
+                      onClick={() => setActiveTab(tab.key)}
+                      className={cn(
+                        "px-4 py-2 text-sm font-medium transition-colors cursor-pointer border-b-2 -mb-px",
+                        activeTab === tab.key
+                          ? "border-primary text-foreground"
+                          : "border-transparent text-muted-foreground hover:text-foreground"
+                      )}
+                    >
+                      {tab.label} ({count})
+                    </button>
+                  );
+                })}
+              </div>
+
+              {/* Tab Content */}
+              <div className="grid gap-2">
+                {/* Tracks */}
+                {activeTab === "tracks" && searchResults?.tracks.map((track) => (
+                  <button
+                    key={track.id}
+                    type="button"
+                    className="flex items-center gap-3 p-3 rounded-lg bg-card hover:bg-accent border cursor-pointer text-left transition-colors"
+                    onClick={() => handleResultClick(track.external_urls)}
+                  >
+                    {track.images ? (
+                      <img src={track.images} alt="" className="w-12 h-12 rounded object-cover shrink-0" />
+                    ) : (
+                      <div className="w-12 h-12 rounded bg-muted shrink-0" />
+                    )}
+                    <div className="flex-1 min-w-0">
+                      <p className="font-medium truncate">{track.name}</p>
+                      <p className="text-sm text-muted-foreground truncate">{track.artists}</p>
+                    </div>
+                    <span className="text-sm text-muted-foreground shrink-0">
+                      {formatDuration(track.duration_ms || 0)}
+                    </span>
+                  </button>
+                ))}
+
+                {/* Albums */}
+                {activeTab === "albums" && searchResults?.albums.map((album) => (
+                  <button
+                    key={album.id}
+                    type="button"
+                    className="flex items-center gap-3 p-3 rounded-lg bg-card hover:bg-accent border cursor-pointer text-left transition-colors"
+                    onClick={() => handleResultClick(album.external_urls)}
+                  >
+                    {album.images ? (
+                      <img src={album.images} alt="" className="w-12 h-12 rounded object-cover shrink-0" />
+                    ) : (
+                      <div className="w-12 h-12 rounded bg-muted shrink-0" />
+                    )}
+                    <div className="flex-1 min-w-0">
+                      <p className="font-medium truncate">{album.name}</p>
+                      <p className="text-sm text-muted-foreground truncate">{album.artists}</p>
+                    </div>
+                    <span className="text-sm text-muted-foreground shrink-0">
+                      {album.total_tracks} tracks
+                    </span>
+                  </button>
+                ))}
+
+                {/* Artists */}
+                {activeTab === "artists" && searchResults?.artists.map((artist) => (
+                  <button
+                    key={artist.id}
+                    type="button"
+                    className="flex items-center gap-3 p-3 rounded-lg bg-card hover:bg-accent border cursor-pointer text-left transition-colors"
+                    onClick={() => handleResultClick(artist.external_urls)}
+                  >
+                    {artist.images ? (
+                      <img src={artist.images} alt="" className="w-12 h-12 rounded-full object-cover shrink-0" />
+                    ) : (
+                      <div className="w-12 h-12 rounded-full bg-muted shrink-0" />
+                    )}
+                    <div className="flex-1 min-w-0">
+                      <p className="font-medium truncate">{artist.name}</p>
+                      <p className="text-sm text-muted-foreground">Artist</p>
+                    </div>
+                  </button>
+                ))}
+
+                {/* Playlists */}
+                {activeTab === "playlists" && searchResults?.playlists.map((playlist) => (
+                  <button
+                    key={playlist.id}
+                    type="button"
+                    className="flex items-center gap-3 p-3 rounded-lg bg-card hover:bg-accent border cursor-pointer text-left transition-colors"
+                    onClick={() => handleResultClick(playlist.external_urls)}
+                  >
+                    {playlist.images ? (
+                      <img src={playlist.images} alt="" className="w-12 h-12 rounded object-cover shrink-0" />
+                    ) : (
+                      <div className="w-12 h-12 rounded bg-muted shrink-0" />
+                    )}
+                    <div className="flex-1 min-w-0">
+                      <p className="font-medium truncate">{playlist.name}</p>
+                      <p className="text-sm text-muted-foreground truncate">
+                        {playlist.owner} • {playlist.total_tracks} tracks
+                      </p>
+                    </div>
+                  </button>
+                ))}
+              </div>
+
+              {/* Load More Button */}
+              {hasMore[activeTab] && (
+                <div className="flex justify-center pt-2">
+                  <Button
+                    variant="outline"
+                    onClick={handleLoadMore}
+                    disabled={isLoadingMore}
+                  >
+                    {isLoadingMore ? (
+                      <>
+                        <Spinner />
+                        Loading...
+                      </>
+                    ) : (
+                      <>
+                        <ChevronDown className="h-4 w-4" />
+                        Load More
+                      </>
+                    )}
+                  </Button>
+                </div>
+              )}
+            </>
+          )}
+        </div>
+      )}
+    </div>
+  );
+}
@@ -0,0 +1,440 @@
+import { useState, useEffect } from "react";
+import { Button } from "@/components/ui/button";
+import { InputWithContext } from "@/components/ui/input-with-context";
+import { Label } from "@/components/ui/label";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+
+import { Tooltip, TooltipContent, TooltipTrigger } from "@/components/ui/tooltip";
+import { FolderOpen, Save, RotateCcw, Info } from "lucide-react";
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog";
+import { Switch } from "@/components/ui/switch";
+import { getSettings, getSettingsWithDefaults, saveSettings, resetToDefaultSettings, applyThemeMode, applyFont, FONT_OPTIONS, FOLDER_PRESETS, FILENAME_PRESETS, TEMPLATE_VARIABLES, type Settings as SettingsType, type FontFamily, type FolderPreset, type FilenamePreset } from "@/lib/settings";
+import { themes, applyTheme } from "@/lib/themes";
+import { SelectFolder } from "../../wailsjs/go/main/App";
+import { toastWithSound as toast } from "@/lib/toast-with-sound";
+
+// Service Icons
+const TidalIcon = () => (
+  <svg viewBox="0 0 24 24" className="inline-block w-[1.1em] h-[1.1em] mr-2 fill-muted-foreground">
+    <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>
+);
+
+const QobuzIcon = () => (
+  <svg viewBox="0 0 24 24" className="inline-block w-[1.1em] h-[1.1em] mr-2 fill-muted-foreground">
+    <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>
+);
+
+const AmazonIcon = () => (
+  <svg viewBox="0 0 24 24" className="inline-block w-[1.1em] h-[1.1em] mr-2 fill-muted-foreground">
+    <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>
+);
+
+export function SettingsPage() {
+  const [savedSettings, setSavedSettings] = useState<SettingsType>(getSettings());
+  const [tempSettings, setTempSettings] = useState<SettingsType>(savedSettings);
+  const [isDark, setIsDark] = useState(document.documentElement.classList.contains('dark'));
+  const [showResetConfirm, setShowResetConfirm] = useState(false);
+
+  useEffect(() => {
+    applyThemeMode(savedSettings.themeMode);
+    applyTheme(savedSettings.theme);
+
+    const mediaQuery = window.matchMedia("(prefers-color-scheme: dark)");
+    const handleChange = () => {
+      if (savedSettings.themeMode === "auto") {
+        applyThemeMode("auto");
+        applyTheme(savedSettings.theme);
+      }
+    };
+
+    mediaQuery.addEventListener("change", handleChange);
+    return () => mediaQuery.removeEventListener("change", handleChange);
+  }, [savedSettings.themeMode, savedSettings.theme]);
+
+  useEffect(() => {
+    applyThemeMode(tempSettings.themeMode);
+    applyTheme(tempSettings.theme);
+    applyFont(tempSettings.fontFamily);
+    setTimeout(() => {
+      setIsDark(document.documentElement.classList.contains('dark'));
+    }, 0);
+  }, [tempSettings.themeMode, tempSettings.theme, tempSettings.fontFamily]);
+
+  useEffect(() => {
+    const loadDefaults = async () => {
+      if (!savedSettings.downloadPath) {
+        const settingsWithDefaults = await getSettingsWithDefaults();
+        setSavedSettings(settingsWithDefaults);
+        setTempSettings(settingsWithDefaults);
+        // Save to localStorage so it persists on reload
+        saveSettings(settingsWithDefaults);
+      }
+    };
+    loadDefaults();
+  }, []);
+
+  const handleSave = () => {
+    saveSettings(tempSettings);
+    setSavedSettings(tempSettings);
+    toast.success("Settings saved");
+  };
+
+  const handleReset = async () => {
+    const defaultSettings = await resetToDefaultSettings();
+    setTempSettings(defaultSettings);
+    setSavedSettings(defaultSettings);
+    applyThemeMode(defaultSettings.themeMode);
+    applyTheme(defaultSettings.theme);
+    applyFont(defaultSettings.fontFamily);
+    setShowResetConfirm(false);
+    toast.success("Settings reset to default");
+  };
+
+  const handleBrowseFolder = async () => {
+    try {
+      const selectedPath = await SelectFolder(tempSettings.downloadPath || "");
+      if (selectedPath && selectedPath.trim() !== "") {
+        setTempSettings((prev) => ({ ...prev, downloadPath: selectedPath }));
+      }
+    } catch (error) {
+      console.error("Error selecting folder:", error);
+      toast.error(`Error selecting folder: ${error}`);
+    }
+  };
+
+  return (
+    <div className="space-y-6">
+      <h1 className="text-2xl font-bold">Settings</h1>
+
+      <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
+        {/* Left Column */}
+        <div className="space-y-4">
+          {/* Download Path */}
+          <div className="space-y-2">
+            <Label htmlFor="download-path">Download Path</Label>
+            <div className="flex gap-2">
+              <InputWithContext
+                id="download-path"
+                value={tempSettings.downloadPath}
+                onChange={(e) => setTempSettings((prev) => ({ ...prev, downloadPath: e.target.value }))}
+                placeholder="C:\Users\YourUsername\Music"
+              />
+              <Button type="button" onClick={handleBrowseFolder} className="gap-1.5">
+                <FolderOpen className="h-4 w-4" />
+                Browse
+              </Button>
+            </div>
+          </div>
+
+          {/* Theme Mode */}
+          <div className="space-y-2">
+            <Label htmlFor="theme-mode">Mode</Label>
+            <Select
+              value={tempSettings.themeMode}
+              onValueChange={(value: "auto" | "light" | "dark") => setTempSettings((prev) => ({ ...prev, themeMode: value }))}
+            >
+              <SelectTrigger id="theme-mode">
+                <SelectValue placeholder="Select theme mode" />
+              </SelectTrigger>
+              <SelectContent>
+                <SelectItem value="auto">Auto</SelectItem>
+                <SelectItem value="light">Light</SelectItem>
+                <SelectItem value="dark">Dark</SelectItem>
+              </SelectContent>
+            </Select>
+          </div>
+
+          {/* Accent */}
+          <div className="space-y-2">
+            <Label htmlFor="theme">Accent</Label>
+            <Select
+              value={tempSettings.theme}
+              onValueChange={(value) => setTempSettings((prev) => ({ ...prev, theme: value }))}
+            >
+              <SelectTrigger id="theme">
+                <SelectValue placeholder="Select a theme" />
+              </SelectTrigger>
+              <SelectContent>
+                {themes.map((theme) => (
+                  <SelectItem key={theme.name} value={theme.name}>
+                    <span className="flex items-center gap-2">
+                      <span
+                        className="w-3 h-3 rounded-full border border-border"
+                        style={{
+                          backgroundColor: isDark ? theme.cssVars.dark.primary : theme.cssVars.light.primary
+                        }}
+                      />
+                      {theme.label}
+                    </span>
+                  </SelectItem>
+                ))}
+              </SelectContent>
+            </Select>
+          </div>
+
+          {/* Font */}
+          <div className="space-y-2">
+            <Label htmlFor="font">Font</Label>
+            <Select
+              value={tempSettings.fontFamily}
+              onValueChange={(value: FontFamily) => setTempSettings((prev) => ({ ...prev, fontFamily: value }))}
+            >
+              <SelectTrigger id="font">
+                <SelectValue placeholder="Select a font" />
+              </SelectTrigger>
+              <SelectContent>
+                {FONT_OPTIONS.map((font) => (
+                  <SelectItem key={font.value} value={font.value}>
+                    <span style={{ fontFamily: font.fontFamily }}>{font.label}</span>
+                  </SelectItem>
+                ))}
+              </SelectContent>
+            </Select>
+          </div>
+
+          {/* Sound Effects */}
+          <div className="flex items-center gap-3">
+            <Label htmlFor="sfx-enabled" className="cursor-pointer text-sm">Sound Effects</Label>
+            <Switch
+              id="sfx-enabled"
+              checked={tempSettings.sfxEnabled}
+              onCheckedChange={(checked) => setTempSettings(prev => ({ ...prev, sfxEnabled: checked }))}
+            />
+          </div>
+        </div>
+
+        {/* Right Column */}
+        <div className="space-y-4">
+          {/* Source Selection */}
+          <div className="space-y-2">
+            <Label htmlFor="downloader" className="text-sm">Source</Label>
+            <div className="flex gap-2">
+              <Select
+                value={tempSettings.downloader}
+                onValueChange={(value: "auto" | "tidal" | "qobuz" | "amazon") => setTempSettings((prev) => ({ ...prev, downloader: value }))}
+              >
+                <SelectTrigger id="downloader" className="h-9 w-fit">
+                  <SelectValue placeholder="Select a source" />
+                </SelectTrigger>
+                <SelectContent>
+                  <SelectItem value="auto">Auto</SelectItem>
+                  <SelectItem value="tidal">
+                    <span className="flex items-center"><TidalIcon />Tidal</span>
+                  </SelectItem>
+                  <SelectItem value="qobuz">
+                    <span className="flex items-center"><QobuzIcon />Qobuz</span>
+                  </SelectItem>
+                  <SelectItem value="amazon">
+                    <span className="flex items-center"><AmazonIcon />Amazon Music</span>
+                  </SelectItem>
+                </SelectContent>
+              </Select>
+              {/* Quality dropdown for Tidal */}
+              {tempSettings.downloader === "tidal" && (
+                <Select
+                  value={tempSettings.tidalQuality}
+                  onValueChange={(value: "LOSSLESS" | "HI_RES_LOSSLESS") => setTempSettings((prev) => ({ ...prev, tidalQuality: value }))}
+                >
+                  <SelectTrigger className="h-9 w-fit">
+                    <SelectValue />
+                  </SelectTrigger>
+                  <SelectContent>
+                    <SelectItem value="LOSSLESS">Lossless (16-bit/CD Quality)</SelectItem>
+                    <SelectItem value="HI_RES_LOSSLESS">Hi-Res Lossless (24-bit/48kHz+)</SelectItem>
+                  </SelectContent>
+                </Select>
+              )}
+              {/* Quality dropdown for Qobuz */}
+              {tempSettings.downloader === "qobuz" && (
+                <Select
+                  value={tempSettings.qobuzQuality}
+                  onValueChange={(value: "6" | "7" | "27") => setTempSettings((prev) => ({ ...prev, qobuzQuality: value }))}
+                >
+                  <SelectTrigger className="h-9 w-fit">
+                    <SelectValue />
+                  </SelectTrigger>
+                  <SelectContent>
+                    <SelectItem value="6">FLAC 16-bit (CD Quality)</SelectItem>
+                    <SelectItem value="7">FLAC 24-bit</SelectItem>
+                    <SelectItem value="27">Hi-Res (24-bit/96kHz+)</SelectItem>
+                  </SelectContent>
+                </Select>
+              )}
+            </div>
+          </div>
+
+          {/* Embed Lyrics & Embed Max Quality Cover */}
+          <div className="flex items-center gap-6">
+            <div className="flex items-center gap-3">
+              <Label htmlFor="embed-lyrics" className="cursor-pointer text-sm">Embed Lyrics</Label>
+              <Switch
+                id="embed-lyrics"
+                checked={tempSettings.embedLyrics}
+                onCheckedChange={(checked) => setTempSettings(prev => ({ ...prev, embedLyrics: checked }))}
+              />
+            </div>
+            <div className="flex items-center gap-3">
+              <Label htmlFor="embed-max-quality-cover" className="cursor-pointer text-sm">Embed Max Quality Cover</Label>
+              <Switch
+                id="embed-max-quality-cover"
+                checked={tempSettings.embedMaxQualityCover}
+                onCheckedChange={(checked) => setTempSettings(prev => ({ ...prev, embedMaxQualityCover: checked }))}
+              />
+            </div>
+          </div>
+
+          <div className="border-t" />
+
+          {/* Folder Structure */}
+          <div className="space-y-2">
+            <div className="flex items-center gap-2">
+              <Label className="text-sm">Folder Structure</Label>
+              <Tooltip>
+                <TooltipTrigger asChild>
+                  <Info className="h-3.5 w-3.5 text-muted-foreground cursor-help" />
+                </TooltipTrigger>
+                <TooltipContent side="top">
+                  <p className="text-xs whitespace-nowrap">Variables: {TEMPLATE_VARIABLES.map(v => v.key).join(", ")}</p>
+                </TooltipContent>
+              </Tooltip>
+            </div>
+            <div className="flex gap-2">
+              <Select
+                value={tempSettings.folderPreset}
+                onValueChange={(value: FolderPreset) => {
+                  const preset = FOLDER_PRESETS[value];
+                  setTempSettings(prev => ({
+                    ...prev,
+                    folderPreset: value,
+                    folderTemplate: value === "custom" ? (prev.folderTemplate || preset.template) : preset.template
+                  }));
+                }}
+              >
+                <SelectTrigger className="h-9 w-fit">
+                  <SelectValue />
+                </SelectTrigger>
+                <SelectContent>
+                  {Object.entries(FOLDER_PRESETS).map(([key, { label }]) => (
+                    <SelectItem key={key} value={key}>{label}</SelectItem>
+                  ))}
+                </SelectContent>
+              </Select>
+              {tempSettings.folderPreset === "custom" && (
+                <InputWithContext
+                  value={tempSettings.folderTemplate}
+                  onChange={(e) => setTempSettings(prev => ({ ...prev, folderTemplate: e.target.value }))}
+                  placeholder="{artist}/{album}"
+                  className="h-9 text-sm flex-1"
+                />
+              )}
+            </div>
+            {tempSettings.folderTemplate && (
+              <p className="text-xs text-muted-foreground">
+                Preview: <span className="font-mono">{tempSettings.folderTemplate.replace(/\{artist\}/g, "Kendrick Lamar, SZA").replace(/\{album\}/g, "Black Panther").replace(/\{album_artist\}/g, "Kendrick Lamar").replace(/\{year\}/g, "2018")}/</span>
+              </p>
+            )}
+          </div>
+
+          <div className="border-t" />
+
+          {/* Filename Format */}
+          <div className="space-y-2">
+            <div className="flex items-center gap-2">
+              <Label className="text-sm">Filename Format</Label>
+              <Tooltip>
+                <TooltipTrigger asChild>
+                  <Info className="h-3.5 w-3.5 text-muted-foreground cursor-help" />
+                </TooltipTrigger>
+                <TooltipContent side="top">
+                  <p className="text-xs whitespace-nowrap">Variables: {TEMPLATE_VARIABLES.map(v => v.key).join(", ")}</p>
+                </TooltipContent>
+              </Tooltip>
+            </div>
+            <div className="flex gap-2">
+              <Select
+                value={tempSettings.filenamePreset}
+                onValueChange={(value: FilenamePreset) => {
+                  const preset = FILENAME_PRESETS[value];
+                  setTempSettings(prev => ({
+                    ...prev,
+                    filenamePreset: value,
+                    filenameTemplate: value === "custom" ? (prev.filenameTemplate || preset.template) : preset.template
+                  }));
+                }}
+              >
+                <SelectTrigger className="h-9 w-fit">
+                  <SelectValue />
+                </SelectTrigger>
+                <SelectContent>
+                  {Object.entries(FILENAME_PRESETS).map(([key, { label }]) => (
+                    <SelectItem key={key} value={key}>{label}</SelectItem>
+                  ))}
+                </SelectContent>
+              </Select>
+              {tempSettings.filenamePreset === "custom" && (
+                <InputWithContext
+                  value={tempSettings.filenameTemplate}
+                  onChange={(e) => setTempSettings(prev => ({ ...prev, filenameTemplate: e.target.value }))}
+                  placeholder="{track}. {title}"
+                  className="h-9 text-sm flex-1"
+                />
+              )}
+            </div>
+            {tempSettings.filenameTemplate && (
+              <p className="text-xs text-muted-foreground">
+                Preview: <span className="font-mono">{tempSettings.filenameTemplate.replace(/\{artist\}/g, "Kendrick Lamar, SZA").replace(/\{album_artist\}/g, "Kendrick Lamar").replace(/\{title\}/g, "All The Stars").replace(/\{track\}/g, "01").replace(/\{disc\}/g, "1").replace(/\{year\}/g, "2018")}.flac</span>
+              </p>
+            )}
+          </div>
+        </div>
+      </div>
+
+      {/* Actions */}
+      <div className="flex gap-2 justify-between pt-4 border-t">
+        <Button variant="outline" onClick={() => setShowResetConfirm(true)} className="gap-1.5">
+          <RotateCcw className="h-4 w-4" />
+          Reset to Default
+        </Button>
+        <Button onClick={handleSave} className="gap-1.5">
+          <Save className="h-4 w-4" />
+          Save Changes
+        </Button>
+      </div>
+
+      {/* Reset Confirmation Dialog */}
+      <Dialog open={showResetConfirm} onOpenChange={setShowResetConfirm}>
+        <DialogContent className="max-w-md [&>button]:hidden">
+          <DialogHeader>
+            <DialogTitle>Reset to Default?</DialogTitle>
+            <DialogDescription>
+              This will reset all settings to their default values. Your custom configurations will be lost.
+            </DialogDescription>
+          </DialogHeader>
+          <DialogFooter>
+            <Button variant="outline" onClick={() => setShowResetConfirm(false)}>Cancel</Button>
+            <Button onClick={handleReset}>Reset</Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+    </div>
+  );
+}
@@ -0,0 +1,181 @@
+import { FileMusic, FilePen } from "lucide-react";
+import { HomeIcon } from "@/components/ui/home";
+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 { CoffeeIcon } from "@/components/ui/coffee";
+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";
+
+interface SidebarProps {
+  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>
+
+        {/* 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>
+
+        {/* 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>
+
+        {/* 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>
+
+        {/* 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>
+
+        {/* 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>
+      </div>
+    </div>
+  );
+}
@@ -0,0 +1,289 @@
+import { useEffect, useRef } from "react";
+import type { SpectrumData } from "@/types/api";
+
+interface SpectrumVisualizationProps {
+  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>
+  );
+}
@@ -0,0 +1,55 @@
+import { X, Minus, Maximize } from "lucide-react";
+import { WindowMinimise, WindowToggleMaximise, Quit } from "../../wailsjs/runtime/runtime";
+
+export function TitleBar() {
+  const handleMinimize = () => {
+    WindowMinimise();
+  };
+
+  const handleMaximize = () => {
+    WindowToggleMaximise();
+  };
+
+  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" />
+        </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>
+        <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>
+    </>
+  );
+}
@@ -0,0 +1,207 @@
+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 { Spinner } from "@/components/ui/spinner";
+import {
+  Tooltip,
+  TooltipContent,
+  TooltipTrigger,
+} from "@/components/ui/tooltip";
+import type { TrackMetadata, TrackAvailability } from "@/types/api";
+import { TidalIcon, QobuzIcon, AmazonIcon } from "./PlatformIcons";
+
+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;
+}
+
+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>
+            </div>
+            <div className="grid grid-cols-2 gap-3 text-sm">
+              <div>
+                <p className="text-xs text-muted-foreground">Album</p>
+                <p className="font-medium truncate">{track.album_name}</p>
+              </div>
+              <div>
+                <p className="text-xs text-muted-foreground">Release Date</p>
+                <p className="font-medium">{track.release_date}</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>
+        </div>
+      </CardContent>
+    </Card>
+  );
+}
@@ -0,0 +1,487 @@
+import { Button } from "@/components/ui/button";
+import { Checkbox } from "@/components/ui/checkbox";
+import { Download, CheckCircle, XCircle, FileCheck, FileText, Globe, ImageDown } 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 type { TrackMetadata, TrackAvailability } from "@/types/api";
+import { TidalIcon, QobuzIcon, AmazonIcon } from "./PlatformIcons";
+
+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;
+}
+
+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);
+    });
+  } 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);
+    });
+  }
+
+  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>
+                    </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>
+      </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>
+
+            {Array.from({ length: totalPages }, (_, i) => i + 1).map((page) => (
+              <PaginationItem key={page}>
+                <PaginationLink
+                  href="#"
+                  onClick={(e) => {
+                    e.preventDefault();
+                    onPageChange(page);
+                  }}
+                  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>
+  );
+}
@@ -0,0 +1,104 @@
+'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;
+}
+
+interface ActivityIconProps extends HTMLAttributes<HTMLDivElement> {
+  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',
+    },
+  },
+};
+
+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'),
+      };
+    });
+
+    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="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>
+    );
+  }
+);
+
+ActivityIcon.displayName = 'ActivityIcon';
+
+export { ActivityIcon };
@@ -0,0 +1,46 @@
+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",
+      },
+    },
+    defaultVariants: {
+      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}
+    />
+  )
+}
+
+export { Badge, badgeVariants }
@@ -0,0 +1,92 @@
+'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 };
@@ -0,0 +1,60 @@
+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",
+      },
+    },
+    defaultVariants: {
+      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}
+    />
+  )
+}
+
+export { Button, buttonVariants }
@@ -0,0 +1,92 @@
+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}
+    />
+  )
+}
+
+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}
+    />
+  )
+}
+
+function CardTitle({ className, ...props }: React.ComponentProps<"div">) {
+  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}
+    />
+  )
+}
+
+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}
+    />
+  )
+}
+
+function CardContent({ className, ...props }: React.ComponentProps<"div">) {
+  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,
+}
@@ -0,0 +1,32 @@
+"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>
+  )
+}
+
+export { Checkbox }
@@ -0,0 +1,118 @@
+'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;
+}
+
+interface CoffeeIconProps extends HTMLAttributes<HTMLDivElement> {
+  size?: number;
+}
+
+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,
+    },
+  }),
+};
+
+const CoffeeIcon = forwardRef<CoffeeIconHandle, CoffeeIconProps>(
+  ({ 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"
+          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" />
+        </svg>
+      </div>
+    );
+  }
+);
+
+CoffeeIcon.displayName = 'CoffeeIcon';
+
+export { CoffeeIcon };
@@ -0,0 +1,252 @@
+"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 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 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 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}
+    >
+      {children}
+      <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 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"
+}) {
+  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}
+    >
+      <span className="pointer-events-none absolute left-2 flex size-3.5 items-center justify-center">
+        <ContextMenuPrimitive.ItemIndicator>
+          <CheckIcon className="size-4" />
+        </ContextMenuPrimitive.ItemIndicator>
+      </span>
+      {children}
+    </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}
+    >
+      <span className="pointer-events-none absolute left-2 flex size-3.5 items-center justify-center">
+        <ContextMenuPrimitive.ItemIndicator>
+          <CircleIcon className="size-2 fill-current" />
+        </ContextMenuPrimitive.ItemIndicator>
+      </span>
+      {children}
+    </ContextMenuPrimitive.RadioItem>
+  )
+}
+
+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}
+    />
+  )
+}
+
+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,
+}
@@ -0,0 +1,143 @@
+"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 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 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
+}) {
+  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}
+      >
+        {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"
+          >
+            <XIcon />
+            <span className="sr-only">Close</span>
+          </DialogPrimitive.Close>
+        )}
+      </DialogPrimitive.Content>
+    </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}
+    />
+  )
+}
+
+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}
+    />
+  )
+}
+
+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,
+}
@@ -0,0 +1,149 @@
+'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 };
@@ -0,0 +1,103 @@
+'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;
+}
+
+interface HomeIconProps extends HTMLAttributes<HTMLDivElement> {
+  size?: number;
+}
+
+const DEFAULT_TRANSITION: Transition = {
+  duration: 0.6,
+  opacity: { duration: 0.2 },
+};
+
+const PATH_VARIANTS: Variants = {
+  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 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="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>
+    );
+  }
+);
+
+HomeIcon.displayName = 'HomeIcon';
+
+export { HomeIcon };
@@ -0,0 +1,216 @@
+import * as React from "react";
+import { Input } from "@/components/ui/input";
+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;
+}
+
+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 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);
+      }
+    };
+
+    const handleSelectAll = () => {
+      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);
+      }
+    };
+
+    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} 
+          />
+        </ContextMenuTrigger>
+        <ContextMenuContent className="w-48">
+          <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" />
+            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" />
+            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" />
+            Select All
+            <span className="ml-auto text-xs text-muted-foreground">Ctrl+A</span>
+          </ContextMenuItem>
+        </ContextMenuContent>
+      </ContextMenu>
+    );
+  }
+);
+
+InputWithContext.displayName = "InputWithContext";
+
+export { InputWithContext };
@@ -0,0 +1,21 @@
+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}
+    />
+  )
+}
+
+export { Input }
@@ -0,0 +1,24 @@
+"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 }
@@ -0,0 +1,127 @@
+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}
+    />
+  )
+}
+
+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} />
+}
+
+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}
+    />
+  )
+}
+
+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>
+  )
+}
+
+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>
+  )
+}
+
+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,
+}
@@ -0,0 +1,31 @@
+"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 }
@@ -0,0 +1,185 @@
+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 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"
+}) {
+  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" />
+      </SelectPrimitive.Icon>
+    </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}
+      >
+        <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"
+          )}
+        >
+          {children}
+        </SelectPrimitive.Viewport>
+        <SelectScrollDownButton />
+      </SelectPrimitive.Content>
+    </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 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" />
+        </SelectPrimitive.ItemIndicator>
+      </span>
+      <SelectPrimitive.ItemText>{children}</SelectPrimitive.ItemText>
+    </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 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,
+}
@@ -0,0 +1,92 @@
+'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;
+}
+
+interface SettingsIconProps extends HTMLAttributes<HTMLDivElement> {
+  size?: number;
+}
+
+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'),
+      };
+    });
+
+    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}
+      >
+        <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,
+            },
+            animate: {
+              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" />
+        </motion.svg>
+      </div>
+    );
+  }
+);
+
+SettingsIcon.displayName = 'SettingsIcon';
+
+export { SettingsIcon };
@@ -0,0 +1,47 @@
+import {
+  CircleCheckIcon,
+  InfoIcon,
+  Loader2Icon,
+  OctagonXIcon,
+  TriangleAlertIcon,
+} from "lucide-react"
+import { useTheme } from "next-themes"
+import { Toaster as Sonner, type ToasterProps } from "sonner"
+
+const Toaster = ({ ...props }: ToasterProps) => {
+  const { theme = "system" } = useTheme()
+
+  return (
+    <Sonner
+      theme={theme as ToasterProps["theme"]}
+      className="toaster group"
+      icons={{
+        success: <CircleCheckIcon className="size-4" />,
+        info: <InfoIcon className="size-4" />,
+        warning: <TriangleAlertIcon className="size-4" />,
+        error: <OctagonXIcon className="size-4" />,
+        loading: <Loader2Icon className="size-4 animate-spin" />,
+      }}
+      toastOptions={{
+        classNames: {
+          success: "border-green-500 bg-green-50 text-green-900 dark:bg-green-950 dark:text-green-100 [&>svg]:text-green-500",
+          error: "border-red-500 bg-red-50 text-red-900 dark:bg-red-950 dark:text-red-100 [&>svg]:text-red-500",
+          warning: "border-yellow-500 bg-yellow-50 text-yellow-900 dark:bg-yellow-950 dark:text-yellow-100 [&>svg]:text-yellow-500",
+          info: "border-blue-500 bg-blue-50 text-blue-900 dark:bg-blue-950 dark:text-blue-100 [&>svg]:text-blue-500",
+        },
+      }}
+      style={
+        {
+          "--normal-bg": "var(--popover)",
+          "--normal-text": "var(--popover-foreground)",
+          "--normal-border": "var(--border)",
+          "--border-radius": "var(--radius)",
+          left: "calc(56px + 1rem)",
+        } as React.CSSProperties
+      }
+      {...props}
+    />
+  )
+}
+
+export { Toaster }
@@ -0,0 +1,15 @@
+import { Loader2 } from "lucide-react"
+import { cn } from "@/lib/utils"
+
+function Spinner({ className, ...props }: React.ComponentProps<"svg">) {
+  return (
+    <Loader2
+      role="status"
+      aria-label="Loading"
+      className={cn("size-4 animate-spin", className)}
+      {...props}
+    />
+  )
+}
+
+export { Spinner }
@@ -0,0 +1,31 @@
+"use client"
+
+import * as React from "react"
+import * as SwitchPrimitive from "@radix-ui/react-switch"
+
+import { cn } from "@/lib/utils"
+
+function Switch({
+  className,
+  ...props
+}: React.ComponentProps<typeof SwitchPrimitive.Root>) {
+  return (
+    <SwitchPrimitive.Root
+      data-slot="switch"
+      className={cn(
+        "peer data-[state=checked]:bg-primary data-[state=unchecked]:bg-input focus-visible:border-ring focus-visible:ring-ring/50 inline-flex h-5 w-9 shrink-0 cursor-pointer items-center rounded-full border border-transparent shadow-xs transition-all outline-none focus-visible:ring-[3px] disabled:cursor-not-allowed disabled:opacity-50",
+        className
+      )}
+      {...props}
+    >
+      <SwitchPrimitive.Thumb
+        data-slot="switch-thumb"
+        className={cn(
+          "pointer-events-none block size-4 rounded-full shadow-lg ring-0 transition-transform data-[state=checked]:translate-x-4 data-[state=unchecked]:translate-x-0 data-[state=checked]:bg-primary-foreground data-[state=unchecked]:bg-background"
+        )}
+      />
+    </SwitchPrimitive.Root>
+  )
+}
+
+export { Switch }
@@ -0,0 +1,103 @@
+'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 TerminalIconHandle {
+  startAnimation: () => void;
+  stopAnimation: () => void;
+}
+
+interface TerminalIconProps extends HTMLAttributes<HTMLDivElement> {
+  size?: number;
+}
+
+const LINE_VARIANTS: Variants = {
+  normal: { opacity: 1 },
+  animate: {
+    opacity: [1, 0, 1],
+    transition: {
+      duration: 0.8,
+      repeat: Infinity,
+      ease: 'linear',
+    },
+  },
+};
+
+const TerminalIcon = forwardRef<TerminalIconHandle, TerminalIconProps>(
+  ({ 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"
+        >
+          <polyline points="4 17 10 11 4 5" />
+          <motion.line
+            x1="12"
+            x2="20"
+            y1="19"
+            y2="19"
+            variants={LINE_VARIANTS}
+            animate={controls}
+            initial="normal"
+          />
+        </svg>
+      </div>
+    );
+  }
+);
+
+TerminalIcon.displayName = 'TerminalIcon';
+
+export { TerminalIcon };
@@ -0,0 +1,83 @@
+"use client"
+
+import * as React from "react"
+import * as ToggleGroupPrimitive from "@radix-ui/react-toggle-group"
+import { type VariantProps } from "class-variance-authority"
+
+import { cn } from "@/lib/utils"
+import { toggleVariants } from "@/components/ui/toggle"
+
+const ToggleGroupContext = React.createContext<
+  VariantProps<typeof toggleVariants> & {
+    spacing?: number
+  }
+>({
+  size: "default",
+  variant: "default",
+  spacing: 0,
+})
+
+function ToggleGroup({
+  className,
+  variant,
+  size,
+  spacing = 0,
+  children,
+  ...props
+}: React.ComponentProps<typeof ToggleGroupPrimitive.Root> &
+  VariantProps<typeof toggleVariants> & {
+    spacing?: number
+  }) {
+  return (
+    <ToggleGroupPrimitive.Root
+      data-slot="toggle-group"
+      data-variant={variant}
+      data-size={size}
+      data-spacing={spacing}
+      style={{ "--gap": spacing } as React.CSSProperties}
+      className={cn(
+        "group/toggle-group flex w-fit items-center gap-[--spacing(var(--gap))] rounded-md data-[spacing=default]:data-[variant=outline]:shadow-xs",
+        className
+      )}
+      {...props}
+    >
+      <ToggleGroupContext.Provider value={{ variant, size, spacing }}>
+        {children}
+      </ToggleGroupContext.Provider>
+    </ToggleGroupPrimitive.Root>
+  )
+}
+
+function ToggleGroupItem({
+  className,
+  children,
+  variant,
+  size,
+  ...props
+}: React.ComponentProps<typeof ToggleGroupPrimitive.Item> &
+  VariantProps<typeof toggleVariants>) {
+  const context = React.useContext(ToggleGroupContext)
+
+  return (
+    <ToggleGroupPrimitive.Item
+      data-slot="toggle-group-item"
+      data-variant={context.variant || variant}
+      data-size={context.size || size}
+      data-spacing={context.spacing}
+      className={cn(
+        toggleVariants({
+          variant: context.variant || variant,
+          size: context.size || size,
+        }),
+        "w-auto min-w-0 shrink-0 px-3 focus:z-10 focus-visible:z-10",
+        "data-[spacing=0]:rounded-none data-[spacing=0]:shadow-none data-[spacing=0]:first:rounded-l-md data-[spacing=0]:last:rounded-r-md data-[spacing=0]:data-[variant=outline]:border-l-0 data-[spacing=0]:data-[variant=outline]:first:border-l",
+        className
+      )}
+      {...props}
+    >
+      {children}
+    </ToggleGroupPrimitive.Item>
+  )
+}
+
+export { ToggleGroup, ToggleGroupItem }
@@ -0,0 +1,47 @@
+"use client"
+
+import * as React from "react"
+import * as TogglePrimitive from "@radix-ui/react-toggle"
+import { cva, type VariantProps } from "class-variance-authority"
+
+import { cn } from "@/lib/utils"
+
+const toggleVariants = cva(
+  "inline-flex items-center justify-center gap-2 rounded-md text-sm font-medium hover:bg-muted hover:text-muted-foreground disabled:pointer-events-none disabled:opacity-50 data-[state=on]:bg-accent data-[state=on]:text-accent-foreground [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4 [&_svg]:shrink-0 focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px] outline-none transition-[color,box-shadow] aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive whitespace-nowrap",
+  {
+    variants: {
+      variant: {
+        default: "bg-transparent",
+        outline:
+          "border border-input bg-transparent shadow-xs hover:bg-accent hover:text-accent-foreground",
+      },
+      size: {
+        default: "h-9 px-2 min-w-9",
+        sm: "h-8 px-1.5 min-w-8",
+        lg: "h-10 px-2.5 min-w-10",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+      size: "default",
+    },
+  }
+)
+
+function Toggle({
+  className,
+  variant,
+  size,
+  ...props
+}: React.ComponentProps<typeof TogglePrimitive.Root> &
+  VariantProps<typeof toggleVariants>) {
+  return (
+    <TogglePrimitive.Root
+      data-slot="toggle"
+      className={cn(toggleVariants({ variant, size, className }))}
+      {...props}
+    />
+  )
+}
+
+export { Toggle, toggleVariants }
@@ -0,0 +1,61 @@
+"use client"
+
+import * as React from "react"
+import * as TooltipPrimitive from "@radix-ui/react-tooltip"
+
+import { cn } from "@/lib/utils"
+
+function TooltipProvider({
+  delayDuration = 0,
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Provider>) {
+  return (
+    <TooltipPrimitive.Provider
+      data-slot="tooltip-provider"
+      delayDuration={delayDuration}
+      {...props}
+    />
+  )
+}
+
+function Tooltip({
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Root>) {
+  return (
+    <TooltipProvider>
+      <TooltipPrimitive.Root data-slot="tooltip" {...props} />
+    </TooltipProvider>
+  )
+}
+
+function TooltipTrigger({
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Trigger>) {
+  return <TooltipPrimitive.Trigger data-slot="tooltip-trigger" {...props} />
+}
+
+function TooltipContent({
+  className,
+  sideOffset = 0,
+  children,
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Content>) {
+  return (
+    <TooltipPrimitive.Portal>
+      <TooltipPrimitive.Content
+        data-slot="tooltip-content"
+        sideOffset={sideOffset}
+        className={cn(
+          "bg-foreground text-background animate-in fade-in-0 zoom-in-95 data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=closed]:zoom-out-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 w-fit origin-(--radix-tooltip-content-transform-origin) rounded-md px-3 py-1.5 text-xs text-balance",
+          className
+        )}
+        {...props}
+      >
+        {children}
+        <TooltipPrimitive.Arrow className="bg-foreground fill-foreground z-50 size-2.5 translate-y-[calc(-50%-2px)] rotate-45 rounded-[2px]" />
+      </TooltipPrimitive.Content>
+    </TooltipPrimitive.Portal>
+  )
+}
+
+export { Tooltip, TooltipTrigger, TooltipContent, TooltipProvider }
@@ -0,0 +1,172 @@
+import { useState, useCallback, useEffect } from "react";
+import { AnalyzeTrack } from "../../wailsjs/go/main/App";
+import type { AnalysisResult } from "@/types/api";
+import { logger } from "@/lib/logger";
+import { toastWithSound as toast } from "@/lib/toast-with-sound";
+import { setSpectrumCache, getSpectrumCache, clearSpectrumCache } from "@/lib/spectrum-cache";
+
+const STORAGE_KEY = "spotiflac_audio_analysis_state";
+
+export function useAudioAnalysis() {
+  const [analyzing, setAnalyzing] = useState(false);
+  const [result, setResult] = useState<AnalysisResult | null>(() => {
+    // Load from sessionStorage on mount - only detail, no spectrum
+    try {
+      const saved = sessionStorage.getItem(STORAGE_KEY);
+      if (saved) {
+        const parsed = JSON.parse(saved);
+        if (parsed.filePath && parsed.result) {
+          // Return result WITHOUT spectrum - spectrum will be loaded async
+          return {
+            ...parsed.result,
+            spectrum: undefined,
+          };
+        }
+      }
+    } catch (err) {
+      console.error("Failed to load saved analysis state:", err);
+    }
+    return null;
+  });
+  const [selectedFilePath, setSelectedFilePath] = useState<string>(() => {
+    // Load file path from sessionStorage
+    try {
+      const saved = sessionStorage.getItem(STORAGE_KEY);
+      if (saved) {
+        const parsed = JSON.parse(saved);
+        return parsed.filePath || "";
+      }
+    } catch (err) {
+      // Ignore
+    }
+    return "";
+  });
+  const [error, setError] = useState<string | null>(null);
+  const [spectrumLoading, setSpectrumLoading] = useState(() => {
+    // If result exists from sessionStorage, show loading for spectrum
+    try {
+      const saved = sessionStorage.getItem(STORAGE_KEY);
+      if (saved) {
+        const parsed = JSON.parse(saved);
+        if (parsed.filePath && parsed.result) {
+          // Always show loading initially, will be resolved async
+          return true;
+        }
+      }
+    } catch (err) {
+      // Ignore
+    }
+    return false;
+  });
+
+  const analyzeFile = useCallback(async (filePath: string) => {
+    if (!filePath) {
+      setError("No file path provided");
+      return null;
+    }
+
+    setAnalyzing(true);
+    setError(null);
+    setResult(null);
+    setSelectedFilePath(filePath);
+
+    try {
+      logger.info(`Analyzing audio file: ${filePath}`);
+      const startTime = Date.now();
+
+      const response = await AnalyzeTrack(filePath);
+      const analysisResult: AnalysisResult = JSON.parse(response);
+
+      const elapsed = ((Date.now() - startTime) / 1000).toFixed(2);
+      logger.success(`Audio analysis completed in ${elapsed}s`);
+
+      // Save spectrum to memory cache
+      if (analysisResult.spectrum) {
+        setSpectrumCache(filePath, analysisResult.spectrum);
+      }
+
+      // Save detail (without spectrum) to sessionStorage
+      const { spectrum, ...detailResult } = analysisResult;
+      try {
+        sessionStorage.setItem(STORAGE_KEY, JSON.stringify({
+          filePath,
+          result: detailResult,
+        }));
+      } catch (err) {
+        console.error("Failed to save analysis state:", err);
+      }
+
+      setResult(analysisResult);
+      setSpectrumLoading(false); // Spectrum is now available
+
+      return analysisResult;
+    } catch (err) {
+      const errorMessage = err instanceof Error ? err.message : "Failed to analyze audio file";
+      logger.error(`Analysis error: ${errorMessage}`);
+      setError(errorMessage);
+      toast.error("Audio Analysis Failed", {
+        description: errorMessage,
+      });
+      return null;
+    } finally {
+      setAnalyzing(false);
+    }
+  }, []);
+
+  const clearResult = useCallback(() => {
+    setResult(null);
+    setError(null);
+    setSelectedFilePath("");
+    try {
+      sessionStorage.removeItem(STORAGE_KEY);
+    } catch (err) {
+      // Ignore
+    }
+    clearSpectrumCache();
+  }, []);
+
+  // Load spectrum from cache asynchronously after detail is displayed
+  useEffect(() => {
+    // Only load spectrum if we have result without spectrum and are in loading state
+    if (!result || !selectedFilePath || result.spectrum || !spectrumLoading) {
+      return;
+    }
+
+    // Load spectrum asynchronously to avoid blocking UI
+    // Use requestAnimationFrame to ensure detail renders first
+    let rafId: number;
+    const loadSpectrum = () => {
+      rafId = requestAnimationFrame(() => {
+        const cachedSpectrum = getSpectrumCache(selectedFilePath);
+        if (cachedSpectrum) {
+          setResult(prev => prev ? { ...prev, spectrum: cachedSpectrum } : null);
+          setSpectrumLoading(false);
+        } else {
+          // Spectrum not in cache - user needs to re-analyze
+          setSpectrumLoading(false);
+        }
+      });
+    };
+    
+    // Double RAF to ensure detail is fully rendered
+    requestAnimationFrame(() => {
+      requestAnimationFrame(loadSpectrum);
+    });
+    
+    return () => {
+      if (rafId) {
+        cancelAnimationFrame(rafId);
+      }
+    };
+  }, [result, selectedFilePath, spectrumLoading]);
+
+  return {
+    analyzing,
+    result,
+    error,
+    selectedFilePath,
+    spectrumLoading,
+    analyzeFile,
+    clearResult,
+  };
+}
@@ -0,0 +1,69 @@
+import { useState, useCallback } from "react";
+import { CheckTrackAvailability } from "../../wailsjs/go/main/App";
+import type { TrackAvailability } from "@/types/api";
+import { logger } from "@/lib/logger";
+
+export function useAvailability() {
+  const [checking, setChecking] = useState(false);
+  const [checkingTrackId, setCheckingTrackId] = useState<string | null>(null);
+  const [availabilityMap, setAvailabilityMap] = useState<Map<string, TrackAvailability>>(new Map());
+  const [error, setError] = useState<string | null>(null);
+
+  const checkAvailability = useCallback(async (spotifyId: string, isrc?: string) => {
+    if (!spotifyId) {
+      setError("No Spotify ID provided");
+      return null;
+    }
+
+    // Check if already cached
+    if (availabilityMap.has(spotifyId)) {
+      return availabilityMap.get(spotifyId)!;
+    }
+
+    setChecking(true);
+    setCheckingTrackId(spotifyId);
+    setError(null);
+
+    try {
+      logger.info(`Checking availability for track: ${spotifyId}`);
+      const response = await CheckTrackAvailability(spotifyId, isrc || "");
+      const availability: TrackAvailability = JSON.parse(response);
+
+      setAvailabilityMap((prev) => {
+        const newMap = new Map(prev);
+        newMap.set(spotifyId, availability);
+        return newMap;
+      });
+
+      logger.success(`Availability check completed for ${spotifyId}`);
+      return availability;
+    } catch (err) {
+      const errorMessage = err instanceof Error ? err.message : "Failed to check availability";
+      logger.error(`Availability check error: ${errorMessage}`);
+      setError(errorMessage);
+      return null;
+    } finally {
+      setChecking(false);
+      setCheckingTrackId(null);
+    }
+  }, [availabilityMap]);
+
+  const getAvailability = useCallback((spotifyId: string) => {
+    return availabilityMap.get(spotifyId);
+  }, [availabilityMap]);
+
+  const clearAvailability = useCallback(() => {
+    setAvailabilityMap(new Map());
+    setError(null);
+  }, []);
+
+  return {
+    checking,
+    checkingTrackId,
+    availabilityMap,
+    error,
+    checkAvailability,
+    getAvailability,
+    clearAvailability,
+  };
+}
@@ -0,0 +1,253 @@
+import { useState, useRef } from "react";
+import { downloadCover } from "@/lib/api";
+import { getSettings, parseTemplate, type TemplateData } from "@/lib/settings";
+import { toastWithSound as toast } from "@/lib/toast-with-sound";
+import { joinPath, sanitizePath } from "@/lib/utils";
+import { logger } from "@/lib/logger";
+import type { TrackMetadata } from "@/types/api";
+
+export function useCover() {
+  const [downloadingCover, setDownloadingCover] = useState(false);
+  const [downloadingCoverTrack, setDownloadingCoverTrack] = useState<string | null>(null);
+  const [downloadedCovers, setDownloadedCovers] = useState<Set<string>>(new Set());
+  const [failedCovers, setFailedCovers] = useState<Set<string>>(new Set());
+  const [skippedCovers, setSkippedCovers] = useState<Set<string>>(new Set());
+  const [isBulkDownloadingCovers, setIsBulkDownloadingCovers] = useState(false);
+  const [coverDownloadProgress, setCoverDownloadProgress] = useState(0);
+  const stopBulkDownloadRef = useRef(false);
+
+  const handleDownloadCover = async (
+    coverUrl: string,
+    trackName: string,
+    artistName: string,
+    albumName?: string,
+    playlistName?: string,
+    position?: number,
+    trackId?: string,
+    albumArtist?: string,
+    releaseDate?: string,
+    discNumber?: number
+  ) => {
+    if (!coverUrl) {
+      toast.error("No cover URL found for this track");
+      return;
+    }
+
+    const id = trackId || `${trackName}-${artistName}`;
+    logger.info(`downloading cover: ${trackName} - ${artistName}`);
+    const settings = getSettings();
+    setDownloadingCover(true);
+    setDownloadingCoverTrack(id);
+
+    try {
+      const os = settings.operatingSystem;
+      let outputDir = settings.downloadPath;
+
+      // Replace forward slashes in template data values to prevent them from being interpreted as path separators
+      const placeholder = "__SLASH_PLACEHOLDER__";
+      const templateData: TemplateData = {
+        artist: artistName?.replace(/\//g, placeholder),
+        album: albumName?.replace(/\//g, placeholder),
+        title: trackName?.replace(/\//g, placeholder),
+        track: position,
+        playlist: playlistName?.replace(/\//g, placeholder),
+      };
+
+      // For playlist/discography, prepend the folder name
+      if (playlistName) {
+        outputDir = joinPath(os, outputDir, sanitizePath(playlistName.replace(/\//g, " "), os));
+      }
+
+      // Apply folder template
+      if (settings.folderTemplate) {
+        const folderPath = parseTemplate(settings.folderTemplate, templateData);
+        if (folderPath) {
+          const parts = folderPath.split("/").filter((p: string) => p.trim());
+          for (const part of parts) {
+            // Restore any slashes that were in the original values as spaces
+            const sanitizedPart = part.replace(new RegExp(placeholder, "g"), " ");
+            outputDir = joinPath(os, outputDir, sanitizePath(sanitizedPart, os));
+          }
+        }
+      }
+
+      const response = await downloadCover({
+        cover_url: coverUrl,
+        track_name: trackName,
+        artist_name: artistName,
+        album_name: albumName || "",
+        album_artist: albumArtist || "",
+        release_date: releaseDate || "",
+        output_dir: outputDir,
+        filename_format: settings.filenameTemplate || "{title}",
+        track_number: settings.trackNumber,
+        position: position || 0,
+        disc_number: discNumber || 0,
+      });
+
+      if (response.success) {
+        if (response.already_exists) {
+          toast.info("Cover file already exists");
+          setSkippedCovers((prev) => new Set(prev).add(id));
+        } else {
+          toast.success("Cover downloaded successfully");
+          setDownloadedCovers((prev) => new Set(prev).add(id));
+        }
+        setFailedCovers((prev) => {
+          const newSet = new Set(prev);
+          newSet.delete(id);
+          return newSet;
+        });
+      } else {
+        toast.error(response.error || "Failed to download cover");
+        setFailedCovers((prev) => new Set(prev).add(id));
+      }
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : "Failed to download cover");
+      setFailedCovers((prev) => new Set(prev).add(id));
+    } finally {
+      setDownloadingCover(false);
+      setDownloadingCoverTrack(null);
+    }
+  };
+
+  const handleDownloadAllCovers = async (
+    tracks: TrackMetadata[],
+    playlistName?: string
+  ) => {
+    if (tracks.length === 0) {
+      toast.error("No tracks to download covers");
+      return;
+    }
+
+    const settings = getSettings();
+    setIsBulkDownloadingCovers(true);
+    setCoverDownloadProgress(0);
+    stopBulkDownloadRef.current = false;
+
+    let completed = 0;
+    let success = 0;
+    let skipped = 0;
+    let failed = 0;
+
+    for (let i = 0; i < tracks.length; i++) {
+      if (stopBulkDownloadRef.current) {
+        toast.info("Cover download stopped");
+        break;
+      }
+
+      const track = tracks[i];
+      if (!track.images) {
+        completed++;
+        setCoverDownloadProgress(Math.round((completed / tracks.length) * 100));
+        continue;
+      }
+
+      const id = track.spotify_id || `${track.name}-${track.artists}`;
+      setDownloadingCoverTrack(id);
+
+      try {
+        const os = settings.operatingSystem;
+        let outputDir = settings.downloadPath;
+
+        // Replace forward slashes in template data values to prevent them from being interpreted as path separators
+        const placeholder = "__SLASH_PLACEHOLDER__";
+        // Determine if we should use album track number or sequential position
+        const useAlbumTrackNumber = settings.folderTemplate?.includes("{album}") || false;
+        // Use track.track_number for album context, otherwise use sequential position (consistent with track download)
+        const trackPosition = useAlbumTrackNumber ? (track.track_number || i + 1) : (i + 1);
+        // Build output path using template system
+        const templateData: TemplateData = {
+          artist: track.artists?.replace(/\//g, placeholder),
+          album: track.album_name?.replace(/\//g, placeholder),
+          title: track.name?.replace(/\//g, placeholder),
+          track: trackPosition,
+          playlist: playlistName?.replace(/\//g, placeholder),
+        };
+
+        // For playlist/discography, prepend the folder name
+        if (playlistName) {
+          outputDir = joinPath(os, outputDir, sanitizePath(playlistName.replace(/\//g, " "), os));
+        }
+
+        // Apply folder template
+        if (settings.folderTemplate) {
+          const folderPath = parseTemplate(settings.folderTemplate, templateData);
+          if (folderPath) {
+            const parts = folderPath.split("/").filter((p: string) => p.trim());
+            for (const part of parts) {
+              // Restore any slashes that were in the original values as spaces
+              const sanitizedPart = part.replace(new RegExp(placeholder, "g"), " ");
+              outputDir = joinPath(os, outputDir, sanitizePath(sanitizedPart, os));
+            }
+          }
+        }
+
+        const response = await downloadCover({
+          cover_url: track.images,
+          track_name: track.name,
+          artist_name: track.artists,
+          album_name: track.album_name,
+          album_artist: track.album_artist,
+          release_date: track.release_date,
+          output_dir: outputDir,
+          filename_format: settings.filenameTemplate || "{title}",
+          track_number: settings.trackNumber,
+          position: trackPosition,
+          disc_number: track.disc_number,
+        });
+
+        if (response.success) {
+          if (response.already_exists) {
+            skipped++;
+            setSkippedCovers((prev) => new Set(prev).add(id));
+          } else {
+            success++;
+            setDownloadedCovers((prev) => new Set(prev).add(id));
+          }
+        } else {
+          failed++;
+          setFailedCovers((prev) => new Set(prev).add(id));
+        }
+      } catch {
+        failed++;
+        setFailedCovers((prev) => new Set(prev).add(id));
+      }
+
+      completed++;
+      setCoverDownloadProgress(Math.round((completed / tracks.length) * 100));
+    }
+
+    setDownloadingCoverTrack(null);
+    setIsBulkDownloadingCovers(false);
+    setCoverDownloadProgress(0);
+
+    if (!stopBulkDownloadRef.current) {
+      toast.success(`Covers: ${success} downloaded, ${skipped} skipped, ${failed} failed`);
+    }
+  };
+
+  const handleStopCoverDownload = () => {
+    stopBulkDownloadRef.current = true;
+  };
+
+  const resetCoverState = () => {
+    setDownloadedCovers(new Set());
+    setFailedCovers(new Set());
+    setSkippedCovers(new Set());
+  };
+
+  return {
+    downloadingCover,
+    downloadingCoverTrack,
+    downloadedCovers,
+    failedCovers,
+    skippedCovers,
+    isBulkDownloadingCovers,
+    coverDownloadProgress,
+    handleDownloadCover,
+    handleDownloadAllCovers,
+    handleStopCoverDownload,
+    resetCoverState,
+  };
+}
@@ -0,0 +1,44 @@
+import { useState, useEffect, useRef } from "react";
+import { GetDownloadProgress } from "../../wailsjs/go/main/App";
+
+export interface DownloadProgressInfo {
+  is_downloading: boolean;
+  mb_downloaded: number;
+  speed_mbps: number;
+}
+
+export function useDownloadProgress() {
+  const [progress, setProgress] = useState<DownloadProgressInfo>({
+    is_downloading: false,
+    mb_downloaded: 0,
+    speed_mbps: 0,
+  });
+  const intervalRef = useRef<number | null>(null);
+
+  useEffect(() => {
+    // Poll progress every 200ms for smooth updates
+    const pollProgress = async () => {
+      try {
+        const progressInfo = await GetDownloadProgress();
+        setProgress(progressInfo);
+      } catch (error) {
+        console.error("Failed to get download progress:", error);
+      }
+    };
+
+    // Start polling
+    intervalRef.current = window.setInterval(pollProgress, 200);
+
+    // Initial fetch
+    pollProgress();
+
+    // Cleanup
+    return () => {
+      if (intervalRef.current) {
+        clearInterval(intervalRef.current);
+      }
+    };
+  }, []);
+
+  return progress;
+}
@@ -0,0 +1,40 @@
+import { useEffect, useState } from "react";
+import { GetDownloadQueue } from "../../wailsjs/go/main/App";
+import { backend } from "../../wailsjs/go/models";
+
+export function useDownloadQueueData() {
+  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(() => {
+    const fetchQueue = async () => {
+      try {
+        const info = await GetDownloadQueue();
+        setQueueInfo(info);
+      } catch (error) {
+        console.error("Failed to get download queue:", error);
+      }
+    };
+
+    // Initial fetch
+    fetchQueue();
+
+    // Poll every 200ms
+    const interval = setInterval(fetchQueue, 200);
+
+    return () => clearInterval(interval);
+  }, []);
+
+  return queueInfo;
+}
@@ -0,0 +1,16 @@
+import { useState } from "react";
+
+export function useDownloadQueueDialog() {
+  const [isOpen, setIsOpen] = useState(false);
+
+  const openQueue = () => setIsOpen(true);
+  const closeQueue = () => setIsOpen(false);
+  const toggleQueue = () => setIsOpen((prev) => !prev);
+
+  return {
+    isOpen,
+    openQueue,
+    closeQueue,
+    toggleQueue,
+  };
+}
@@ -0,0 +1,260 @@
+import { useState, useRef } from "react";
+import { downloadLyrics } from "@/lib/api";
+import { getSettings, parseTemplate, type TemplateData } from "@/lib/settings";
+import { toastWithSound as toast } from "@/lib/toast-with-sound";
+import { joinPath, sanitizePath } from "@/lib/utils";
+import { logger } from "@/lib/logger";
+import type { TrackMetadata } from "@/types/api";
+
+export function useLyrics() {
+  const [downloadingLyricsTrack, setDownloadingLyricsTrack] = useState<string | null>(null);
+  const [downloadedLyrics, setDownloadedLyrics] = useState<Set<string>>(new Set());
+  const [failedLyrics, setFailedLyrics] = useState<Set<string>>(new Set());
+  const [skippedLyrics, setSkippedLyrics] = useState<Set<string>>(new Set());
+  const [isBulkDownloadingLyrics, setIsBulkDownloadingLyrics] = useState(false);
+  const [lyricsDownloadProgress, setLyricsDownloadProgress] = useState(0);
+  const stopBulkDownloadRef = useRef(false);
+
+  const handleDownloadLyrics = async (
+    spotifyId: string,
+    trackName: string,
+    artistName: string,
+    albumName?: string,
+    playlistName?: string,
+    position?: number,
+    albumArtist?: string,
+    releaseDate?: string,
+    discNumber?: number
+  ) => {
+    if (!spotifyId) {
+      toast.error("No Spotify ID found for this track");
+      return;
+    }
+
+    logger.info(`downloading lyrics: ${trackName} - ${artistName}`);
+    const settings = getSettings();
+    setDownloadingLyricsTrack(spotifyId);
+
+    try {
+      const os = settings.operatingSystem;
+      let outputDir = settings.downloadPath;
+
+      // Build output path using template system
+      // Replace forward slashes in template data values to prevent them from being interpreted as path separators
+      const placeholder = "__SLASH_PLACEHOLDER__";
+      const templateData: TemplateData = {
+        artist: artistName?.replace(/\//g, placeholder),
+        album: albumName?.replace(/\//g, placeholder),
+        title: trackName?.replace(/\//g, placeholder),
+        track: position,
+        playlist: playlistName?.replace(/\//g, placeholder),
+      };
+
+      // For playlist/discography, prepend the folder name
+      if (playlistName) {
+        outputDir = joinPath(os, outputDir, sanitizePath(playlistName.replace(/\//g, " "), os));
+      }
+
+      // Apply folder template
+      if (settings.folderTemplate) {
+        const folderPath = parseTemplate(settings.folderTemplate, templateData);
+        if (folderPath) {
+          const parts = folderPath.split("/").filter((p: string) => p.trim());
+          for (const part of parts) {
+            // Restore any slashes that were in the original values as spaces
+            const sanitizedPart = part.replace(new RegExp(placeholder, "g"), " ");
+            outputDir = joinPath(os, outputDir, sanitizePath(sanitizedPart, os));
+          }
+        }
+      }
+
+      const useAlbumTrackNumber = settings.folderTemplate?.includes("{album}") || false;
+
+      const response = await downloadLyrics({
+        spotify_id: spotifyId,
+        track_name: trackName,
+        artist_name: artistName,
+        album_name: albumName,
+        album_artist: albumArtist,
+        release_date: releaseDate,
+        output_dir: outputDir,
+        filename_format: settings.filenameTemplate || "{title}",
+        track_number: settings.trackNumber,
+        position: position || 0,
+        use_album_track_number: useAlbumTrackNumber,
+        disc_number: discNumber,
+      });
+
+      if (response.success) {
+        if (response.already_exists) {
+          toast.info("Lyrics file already exists");
+          setSkippedLyrics((prev) => new Set(prev).add(spotifyId));
+        } else {
+          toast.success("Lyrics downloaded successfully");
+          setDownloadedLyrics((prev) => new Set(prev).add(spotifyId));
+        }
+        setFailedLyrics((prev) => {
+          const newSet = new Set(prev);
+          newSet.delete(spotifyId);
+          return newSet;
+        });
+      } else {
+        toast.error(response.error || "Failed to download lyrics");
+        setFailedLyrics((prev) => new Set(prev).add(spotifyId));
+      }
+    } catch (err) {
+      toast.error(err instanceof Error ? err.message : "Failed to download lyrics");
+      setFailedLyrics((prev) => new Set(prev).add(spotifyId));
+    } finally {
+      setDownloadingLyricsTrack(null);
+    }
+  };
+
+  const handleDownloadAllLyrics = async (
+    tracks: TrackMetadata[],
+    playlistName?: string,
+    _isArtistDiscography?: boolean
+  ) => {
+    const tracksWithSpotifyId = tracks.filter((track) => track.spotify_id);
+
+    if (tracksWithSpotifyId.length === 0) {
+      toast.error("No tracks with Spotify ID available for lyrics download");
+      return;
+    }
+
+    const settings = getSettings();
+    setIsBulkDownloadingLyrics(true);
+    setLyricsDownloadProgress(0);
+    stopBulkDownloadRef.current = false;
+
+    let completed = 0;
+    let success = 0;
+    let failed = 0;
+    let skipped = 0;
+    const total = tracksWithSpotifyId.length;
+
+    for (let i = 0; i < tracksWithSpotifyId.length; i++) {
+      const track = tracksWithSpotifyId[i];
+      if (stopBulkDownloadRef.current) {
+        toast.info("Lyrics download stopped by user");
+        break;
+      }
+
+      const id = track.spotify_id!;
+      setDownloadingLyricsTrack(id);
+      setLyricsDownloadProgress(Math.round((completed / total) * 100));
+
+      try {
+        const os = settings.operatingSystem;
+        let outputDir = settings.downloadPath;
+
+        // Replace forward slashes in template data values to prevent them from being interpreted as path separators
+        const placeholder = "__SLASH_PLACEHOLDER__";
+        
+        // Determine if we should use album track number or sequential position
+        const useAlbumTrackNumber = settings.folderTemplate?.includes("{album}") || false;
+        // Use track.track_number for album context, otherwise use sequential position (consistent with track download)
+        const trackPosition = useAlbumTrackNumber ? (track.track_number || i + 1) : (i + 1);
+        
+        // Build output path using template system
+        const templateData: TemplateData = {
+          artist: track.artists?.replace(/\//g, placeholder),
+          album: track.album_name?.replace(/\//g, placeholder),
+          title: track.name?.replace(/\//g, placeholder),
+          track: trackPosition,
+          playlist: playlistName?.replace(/\//g, placeholder),
+        };
+
+        // For playlist/discography, prepend the folder name
+        if (playlistName) {
+          outputDir = joinPath(os, outputDir, sanitizePath(playlistName.replace(/\//g, " "), os));
+        }
+
+        // Apply folder template
+        if (settings.folderTemplate) {
+          const folderPath = parseTemplate(settings.folderTemplate, templateData);
+          if (folderPath) {
+            const parts = folderPath.split("/").filter((p: string) => p.trim());
+            for (const part of parts) {
+              // Restore any slashes that were in the original values as spaces
+              const sanitizedPart = part.replace(new RegExp(placeholder, "g"), " ");
+              outputDir = joinPath(os, outputDir, sanitizePath(sanitizedPart, os));
+            }
+          }
+        }
+
+        const response = await downloadLyrics({
+          spotify_id: id,
+          track_name: track.name,
+          artist_name: track.artists,
+          album_name: track.album_name,
+          album_artist: track.album_artist,
+          release_date: track.release_date,
+          output_dir: outputDir,
+          filename_format: settings.filenameTemplate || "{title}",
+          track_number: settings.trackNumber,
+          position: trackPosition,
+          use_album_track_number: useAlbumTrackNumber,
+          disc_number: track.disc_number,
+        });
+
+        if (response.success) {
+          if (response.already_exists) {
+            skipped++;
+            setSkippedLyrics((prev) => new Set(prev).add(id));
+          } else {
+            success++;
+            setDownloadedLyrics((prev) => new Set(prev).add(id));
+          }
+          setFailedLyrics((prev) => {
+            const newSet = new Set(prev);
+            newSet.delete(id);
+            return newSet;
+          });
+        } else {
+          failed++;
+          setFailedLyrics((prev) => new Set(prev).add(id));
+        }
+      } catch (err) {
+        failed++;
+        logger.error(`error downloading lyrics: ${track.name} - ${err}`);
+        setFailedLyrics((prev) => new Set(prev).add(id));
+      }
+
+      completed++;
+    }
+
+    setDownloadingLyricsTrack(null);
+    setIsBulkDownloadingLyrics(false);
+    setLyricsDownloadProgress(0);
+
+    if (!stopBulkDownloadRef.current) {
+      toast.success(`Lyrics: ${success} downloaded, ${skipped} skipped, ${failed} failed`);
+    }
+  };
+
+  const handleStopLyricsDownload = () => {
+    logger.info("lyrics download stopped by user");
+    stopBulkDownloadRef.current = true;
+    toast.info("Stopping lyrics download...");
+  };
+
+  const resetLyricsState = () => {
+    setDownloadedLyrics(new Set());
+    setFailedLyrics(new Set());
+    setSkippedLyrics(new Set());
+  };
+
+  return {
+    downloadingLyricsTrack,
+    downloadedLyrics,
+    failedLyrics,
+    skippedLyrics,
+    isBulkDownloadingLyrics,
+    lyricsDownloadProgress,
+    handleDownloadLyrics,
+    handleDownloadAllLyrics,
+    handleStopLyricsDownload,
+    resetLyricsState,
+  };
+}
@@ -0,0 +1,204 @@
+import { useState } from "react";
+import { fetchSpotifyMetadata } from "@/lib/api";
+import { toastWithSound as toast } from "@/lib/toast-with-sound";
+import { logger } from "@/lib/logger";
+import type { SpotifyMetadataResponse } from "@/types/api";
+
+export function useMetadata() {
+  const [loading, setLoading] = useState(false);
+  const [metadata, setMetadata] = useState<SpotifyMetadataResponse | null>(null);
+  const [showTimeoutDialog, setShowTimeoutDialog] = useState(false);
+  const [timeoutValue, setTimeoutValue] = useState(60);
+  const [pendingUrl, setPendingUrl] = useState("");
+  const [showAlbumDialog, setShowAlbumDialog] = useState(false);
+  const [selectedAlbum, setSelectedAlbum] = useState<{
+    id: string;
+    name: string;
+    external_urls: string;
+  } | null>(null);
+  const [pendingArtistName, setPendingArtistName] = useState<string | null>(null);
+
+  const getUrlType = (url: string): string => {
+    if (url.includes("/track/")) return "track";
+    if (url.includes("/album/")) return "album";
+    if (url.includes("/playlist/")) return "playlist";
+    if (url.includes("/artist/")) return "artist";
+    return "unknown";
+  };
+
+  const fetchMetadataDirectly = async (url: string) => {
+    const urlType = getUrlType(url);
+    logger.info(`fetching ${urlType} metadata...`);
+    logger.debug(`url: ${url}`);
+    
+    setLoading(true);
+    setMetadata(null);
+
+    try {
+      const startTime = Date.now();
+      const data = await fetchSpotifyMetadata(url);
+      const elapsed = ((Date.now() - startTime) / 1000).toFixed(2);
+      
+      setMetadata(data);
+      
+      // Log detailed info based on type
+      if ("track" in data) {
+        logger.success(`fetched track: ${data.track.name} - ${data.track.artists}`);
+        logger.debug(`isrc: ${data.track.isrc}, duration: ${data.track.duration_ms}ms`);
+      } else if ("album_info" in data) {
+        logger.success(`fetched album: ${data.album_info.name}`);
+        logger.debug(`${data.track_list.length} tracks, released: ${data.album_info.release_date}`);
+      } else if ("playlist_info" in data) {
+        logger.success(`fetched playlist: ${data.track_list.length} tracks`);
+        logger.debug(`by ${data.playlist_info.owner.display_name || data.playlist_info.owner.name}`);
+      } else if ("artist_info" in data) {
+        logger.success(`fetched artist: ${data.artist_info.name}`);
+        logger.debug(`${data.album_list.length} albums, ${data.track_list.length} tracks`);
+      }
+      
+      logger.info(`fetch completed in ${elapsed}s`);
+      toast.success("Metadata fetched successfully");
+    } catch (err) {
+      const errorMsg = err instanceof Error ? err.message : "Failed to fetch metadata";
+      logger.error(`fetch failed: ${errorMsg}`);
+      toast.error(errorMsg);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const handleFetchMetadata = async (url: string) => {
+    if (!url.trim()) {
+      logger.warning("empty url provided");
+      toast.error("Please enter a Spotify URL");
+      return;
+    }
+
+    let urlToFetch = url.trim();
+    const isArtistUrl = urlToFetch.includes("/artist/");
+
+    if (isArtistUrl && !urlToFetch.includes("/discography")) {
+      urlToFetch = urlToFetch.replace(/\/$/, "") + "/discography/all";
+      logger.debug("converted to discography url");
+    }
+
+    if (isArtistUrl) {
+      logger.info("artist url detected, showing timeout dialog");
+      setPendingUrl(urlToFetch);
+      setPendingArtistName(null); // Clear artist name for URL input
+      setShowTimeoutDialog(true);
+    } else {
+      await fetchMetadataDirectly(urlToFetch);
+    }
+
+    return urlToFetch;
+  };
+
+  const handleConfirmFetch = async () => {
+    setShowTimeoutDialog(false);
+    logger.info(`fetching artist discography (timeout: ${timeoutValue}s)...`);
+    logger.debug(`url: ${pendingUrl}`);
+    
+    setLoading(true);
+    setMetadata(null);
+
+    try {
+      const startTime = Date.now();
+      const data = await fetchSpotifyMetadata(pendingUrl, true, 1.0, timeoutValue);
+      const elapsed = ((Date.now() - startTime) / 1000).toFixed(2);
+      
+      setMetadata(data);
+      
+      if ("artist_info" in data) {
+        logger.success(`fetched artist: ${data.artist_info.name}`);
+        logger.debug(`${data.album_list.length} albums, ${data.track_list.length} tracks`);
+      }
+      
+      logger.info(`fetch completed in ${elapsed}s`);
+      toast.success("Metadata fetched successfully");
+    } catch (err) {
+      const errorMsg = err instanceof Error ? err.message : "Failed to fetch metadata";
+      logger.error(`fetch failed: ${errorMsg}`);
+      toast.error(errorMsg);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const handleAlbumClick = (album: {
+    id: string;
+    name: string;
+    external_urls: string;
+  }) => {
+    logger.debug(`album clicked: ${album.name}`);
+    setSelectedAlbum(album);
+    setShowAlbumDialog(true);
+  };
+
+  const handleArtistClick = async (artist: {
+    id: string;
+    name: string;
+    external_urls: string;
+  }) => {
+    logger.debug(`artist clicked: ${artist.name}`);
+    const artistUrl = artist.external_urls.replace(/\/$/, "") + "/discography/all";
+    setPendingUrl(artistUrl);
+    setPendingArtistName(artist.name);
+    setShowTimeoutDialog(true);
+    return artistUrl;
+  };
+
+  const handleConfirmAlbumFetch = async () => {
+    if (!selectedAlbum) return;
+
+    const albumUrl = selectedAlbum.external_urls;
+    logger.info(`fetching album: ${selectedAlbum.name}...`);
+    logger.debug(`url: ${albumUrl}`);
+    
+    setShowAlbumDialog(false);
+    setLoading(true);
+    setMetadata(null);
+
+    try {
+      const startTime = Date.now();
+      const data = await fetchSpotifyMetadata(albumUrl);
+      const elapsed = ((Date.now() - startTime) / 1000).toFixed(2);
+      
+      setMetadata(data);
+      
+      if ("album_info" in data) {
+        logger.success(`fetched album: ${data.album_info.name}`);
+        logger.debug(`${data.track_list.length} tracks, released: ${data.album_info.release_date}`);
+      }
+      
+      logger.info(`fetch completed in ${elapsed}s`);
+      toast.success("Album metadata fetched successfully");
+      return albumUrl;
+    } catch (err) {
+      const errorMsg = err instanceof Error ? err.message : "Failed to fetch album metadata";
+      logger.error(`fetch failed: ${errorMsg}`);
+      toast.error(errorMsg);
+    } finally {
+      setLoading(false);
+      setSelectedAlbum(null);
+    }
+  };
+
+  return {
+    loading,
+    metadata,
+    showTimeoutDialog,
+    setShowTimeoutDialog,
+    timeoutValue,
+    setTimeoutValue,
+    showAlbumDialog,
+    setShowAlbumDialog,
+    selectedAlbum,
+    pendingArtistName,
+    handleFetchMetadata,
+    handleConfirmFetch,
+    handleAlbumClick,
+    handleConfirmAlbumFetch,
+    handleArtistClick,
+  };
+}
@@ -0,0 +1,255 @@
+@import "tailwindcss";
+@import "tw-animate-css";
+
+@custom-variant dark (&:is(.dark *));
+
+@theme inline {
+  --radius-sm: calc(var(--radius) - 4px);
+  --radius-md: calc(var(--radius) - 2px);
+  --radius-lg: var(--radius);
+  --radius-xl: calc(var(--radius) + 4px);
+  --color-background: var(--background);
+  --color-foreground: var(--foreground);
+  --color-card: var(--card);
+  --color-card-foreground: var(--card-foreground);
+  --color-popover: var(--popover);
+  --color-popover-foreground: var(--popover-foreground);
+  --color-primary: var(--primary);
+  --color-primary-foreground: var(--primary-foreground);
+  --color-secondary: var(--secondary);
+  --color-secondary-foreground: var(--secondary-foreground);
+  --color-muted: var(--muted);
+  --color-muted-foreground: var(--muted-foreground);
+  --color-accent: var(--accent);
+  --color-accent-foreground: var(--accent-foreground);
+  --color-destructive: var(--destructive);
+  --color-border: var(--border);
+  --color-input: var(--input);
+  --color-ring: var(--ring);
+}
+
+:root {
+  --radius: 0.625rem;
+  --background: oklch(1 0 0);
+  --foreground: oklch(0.145 0 0);
+  --card: oklch(1 0 0);
+  --card-foreground: oklch(0.145 0 0);
+  --popover: oklch(1 0 0);
+  --popover-foreground: oklch(0.145 0 0);
+  --primary: oklch(0.205 0 0);
+  --primary-foreground: oklch(0.985 0 0);
+  --secondary: oklch(0.97 0 0);
+  --secondary-foreground: oklch(0.205 0 0);
+  --muted: oklch(0.97 0 0);
+  --muted-foreground: oklch(0.556 0 0);
+  --accent: oklch(0.97 0 0);
+  --accent-foreground: oklch(0.205 0 0);
+  --destructive: oklch(0.577 0.245 27.325);
+  --border: oklch(0.922 0 0);
+  --input: oklch(0.922 0 0);
+  --ring: oklch(0.708 0 0);
+}
+
+.dark {
+  --background: oklch(0.145 0 0);
+  --foreground: oklch(0.985 0 0);
+  --card: oklch(0.205 0 0);
+  --card-foreground: oklch(0.985 0 0);
+  --popover: oklch(0.205 0 0);
+  --popover-foreground: oklch(0.985 0 0);
+  --primary: oklch(0.922 0 0);
+  --primary-foreground: oklch(0.205 0 0);
+  --secondary: oklch(0.269 0 0);
+  --secondary-foreground: oklch(0.985 0 0);
+  --muted: oklch(0.269 0 0);
+  --muted-foreground: oklch(0.708 0 0);
+  --accent: oklch(0.269 0 0);
+  --accent-foreground: oklch(0.985 0 0);
+  --destructive: oklch(0.704 0.191 22.216);
+  --border: oklch(1 0 0 / 10%);
+  --input: oklch(1 0 0 / 15%);
+  --ring: oklch(0.556 0 0);
+}
+
+@layer base {
+  * {
+    @apply border-border outline-ring/50;
+  }
+  body {
+    @apply bg-background text-foreground;
+    font-family: "Google Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
+  }
+  code, pre, .font-mono {
+    font-family: "Google Sans Code", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace !important;
+  }
+}
+
+@theme inline {
+  --font-mono: "Google Sans Code", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
+}
+
+/* Sonner Toast Styling */
+[data-sonner-toast] {
+  @apply rounded-lg shadow-lg border;
+}
+
+[data-sonner-toast][data-type="success"] {
+  @apply bg-green-50 border-green-200 text-green-900;
+}
+
+[data-sonner-toast][data-type="success"] [data-icon] {
+  @apply text-green-600;
+}
+
+[data-sonner-toast][data-type="error"] {
+  @apply bg-red-50 border-red-200 text-red-900;
+}
+
+[data-sonner-toast][data-type="error"] [data-icon] {
+  @apply text-red-600;
+}
+
+[data-sonner-toast][data-type="warning"] {
+  @apply bg-yellow-50 border-yellow-200 text-yellow-900;
+}
+
+[data-sonner-toast][data-type="warning"] [data-icon] {
+  @apply text-yellow-600;
+}
+
+[data-sonner-toast][data-type="info"] {
+  @apply bg-blue-50 border-blue-200 text-blue-900;
+}
+
+[data-sonner-toast][data-type="info"] [data-icon] {
+  @apply text-blue-600;
+}
+
+/* Ensure description text uses same color as title */
+[data-sonner-toast] [data-description],
+[data-sonner-toast] [data-description] * {
+  opacity: 1 !important;
+}
+
+/* Specific color for each toast type - match icon color */
+[data-sonner-toast][data-type="success"] [data-description],
+[data-sonner-toast][data-type="success"] [data-description] * {
+  color: rgb(22 163 74) !important; /* green-600 - same as icon */
+}
+
+[data-sonner-toast][data-type="error"] [data-description],
+[data-sonner-toast][data-type="error"] [data-description] * {
+  color: rgb(220 38 38) !important; /* red-600 - same as icon */
+}
+
+[data-sonner-toast][data-type="warning"] [data-description],
+[data-sonner-toast][data-type="warning"] [data-description] * {
+  color: rgb(202 138 4) !important; /* yellow-600 - same as icon */
+}
+
+[data-sonner-toast][data-type="info"] [data-description],
+[data-sonner-toast][data-type="info"] [data-description] * {
+  color: rgb(37 99 235) !important; /* blue-600 - same as icon */
+}
+
+/* Dark mode - use same icon colors */
+.dark [data-sonner-toast][data-type="success"] [data-description],
+.dark [data-sonner-toast][data-type="success"] [data-description] * {
+  color: rgb(22 163 74) !important; /* green-600 */
+}
+
+.dark [data-sonner-toast][data-type="error"] [data-description],
+.dark [data-sonner-toast][data-type="error"] [data-description] * {
+  color: rgb(220 38 38) !important; /* red-600 */
+}
+
+.dark [data-sonner-toast][data-type="warning"] [data-description],
+.dark [data-sonner-toast][data-type="warning"] [data-description] * {
+  color: rgb(202 138 4) !important; /* yellow-600 */
+}
+
+.dark [data-sonner-toast][data-type="info"] [data-description],
+.dark [data-sonner-toast][data-type="info"] [data-description] * {
+  color: rgb(37 99 235) !important; /* blue-600 */
+}
+
+/* Dark mode toast styling */
+.dark [data-sonner-toast][data-type="success"] {
+  @apply bg-green-950 border-green-800 text-green-100;
+}
+
+.dark [data-sonner-toast][data-type="success"] [data-icon] {
+  @apply text-green-400;
+}
+
+.dark [data-sonner-toast][data-type="error"] {
+  @apply bg-red-950 border-red-800 text-red-100;
+}
+
+.dark [data-sonner-toast][data-type="error"] [data-icon] {
+  @apply text-red-400;
+}
+
+.dark [data-sonner-toast][data-type="warning"] {
+  @apply bg-yellow-950 border-yellow-800 text-yellow-100;
+}
+
+.dark [data-sonner-toast][data-type="warning"] [data-icon] {
+  @apply text-yellow-400;
+}
+
+.dark [data-sonner-toast][data-type="info"] {
+  @apply bg-blue-950 border-blue-800 text-blue-100;
+}
+
+.dark [data-sonner-toast][data-type="info"] [data-icon] {
+  @apply text-blue-400;
+}
+
+/* Custom Scrollbar - mengikuti primary color theme */
+::-webkit-scrollbar {
+  width: 8px;
+  height: 8px;
+}
+
+::-webkit-scrollbar-track {
+  background: var(--secondary);
+  border-radius: 4px;
+}
+
+::-webkit-scrollbar-thumb {
+  background: var(--primary);
+  border-radius: 4px;
+  opacity: 0.7;
+}
+
+::-webkit-scrollbar-thumb:hover {
+  background: var(--primary);
+  filter: brightness(1.2);
+}
+
+/* Firefox scrollbar support */
+* {
+  scrollbar-width: thin;
+  scrollbar-color: var(--primary) var(--secondary);
+}
+
+/* Custom scrollbar class untuk komponen tertentu */
+.custom-scrollbar::-webkit-scrollbar {
+  width: 6px;
+  height: 6px;
+}
+
+.custom-scrollbar::-webkit-scrollbar-track {
+  background: var(--muted);
+  border-radius: 3px;
+}
+
+.custom-scrollbar::-webkit-scrollbar-thumb {
+  background: var(--primary);
+  border-radius: 3px;
+}
+
+.custom-scrollbar::-webkit-scrollbar-thumb:hover {
+  filter: brightness(1.2);
+}
@@ -0,0 +1,59 @@
+import type {
+  SpotifyMetadataResponse,
+  DownloadRequest,
+  DownloadResponse,
+  HealthResponse,
+  LyricsDownloadRequest,
+  LyricsDownloadResponse,
+  CoverDownloadRequest,
+  CoverDownloadResponse,
+} from "@/types/api";
+import { GetSpotifyMetadata, DownloadTrack, DownloadLyrics, DownloadCover } from "../../wailsjs/go/main/App";
+import { main } from "../../wailsjs/go/models";
+
+export async function fetchSpotifyMetadata(
+  url: string,
+  batch: boolean = true,
+  delay: number = 1.0,
+  timeout: number = 300.0
+): Promise<SpotifyMetadataResponse> {
+  const req = new main.SpotifyMetadataRequest({
+    url,
+    batch,
+    delay,
+    timeout,
+  });
+
+  const jsonString = await GetSpotifyMetadata(req);
+  return JSON.parse(jsonString);
+}
+
+export async function downloadTrack(
+  request: DownloadRequest
+): Promise<DownloadResponse> {
+  const req = new main.DownloadRequest(request);
+  return await DownloadTrack(req);
+}
+
+export async function checkHealth(): Promise<HealthResponse> {
+  // For Wails, we can just return a simple health check
+  // since the app is running locally
+  return {
+    status: "ok",
+    time: new Date().toISOString(),
+  };
+}
+
+export async function downloadLyrics(
+  request: LyricsDownloadRequest
+): Promise<LyricsDownloadResponse> {
+  const req = new main.LyricsDownloadRequest(request);
+  return await DownloadLyrics(req);
+}
+
+export async function downloadCover(
+  request: CoverDownloadRequest
+): Promise<CoverDownloadResponse> {
+  const req = new main.CoverDownloadRequest(request);
+  return await DownloadCover(req);
+}
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
afkarxyz	d7b0ca8b3c	v7.0	2025-12-24 09:09:39 +07:00
afkarxyz	8e6a1196b5	v7.0	2025-12-24 08:55:23 +07:00
afkarxyz	c150124273	v7.0	2025-12-24 08:50:43 +07:00
afkarxyz	cb2a41d068	v6.9	2025-12-20 10:57:13 +07:00
afkarxyz	820a4a30ab	v6.9	2025-12-20 10:43:34 +07:00
afkarxyz	c9e49b4b95	v6.9	2025-12-20 10:36:39 +07:00
afkarxyz	0ba9443ef4	v6.9	2025-12-20 07:13:55 +07:00
afkarxyz	7f8c968d6a	v6.9	2025-12-20 04:59:07 +07:00
afkarxyz	4fee88329b	v6.9	2025-12-20 04:49:58 +07:00
afkarxyz	66c30de2db	v6.9	2025-12-19 21:04:12 +07:00
afkarxyz	436feb7f7c	v6.9	2025-12-19 16:50:43 +07:00
afkarxyz	7d0fde3acc	v6.9	2025-12-19 13:29:28 +07:00
afkarxyz	939883c9cd	v6.9	2025-12-19 13:26:19 +07:00
TheLittleDoctor	99f3d59ff1	Added a toggle to choose between using Artist property or AlbumArtist property for folder name (#169 ) * Corrected function call to correctly download albums vs playlists * Added setting to prefer AlbumArtist as folder name. - In practice, this prevents albums with multiple artists, featured artists, collaborations, or collections like soundtracks, from being split up - This is occasionally desirable behavior, so I added it as a toggle rather than a default behavior	2025-12-19 08:39:03 +07:00
Kyle Rector	965f044e0c	Showing singular "song" if playlist or album only has one song (#168 )	2025-12-19 08:38:50 +07:00
afkarxyz	6a3bd37eb6	Ko-fi	2025-12-17 04:57:12 +07:00
afkarxyz	b85ed89af3	v6.8	2025-12-14 15:35:11 +07:00
afkarxyz	8e78a882a3	v6.8	2025-12-14 12:36:37 +07:00
afkarxyz	237ee777c3	v6.8	2025-12-14 12:22:08 +07:00
afkarxyz	b44a9abdd6	v6.8	2025-12-14 07:47:18 +07:00
afkarxyz	6c3fb13b25	v6.8	2025-12-13 18:32:50 +07:00
afkarxyz	9398e496e8	v6.8	2025-12-13 18:31:11 +07:00
afkarxyz	a8d6276d00	v6.8	2025-12-13 16:42:29 +07:00
afkarxyz	4d3aac4990	v6.8	2025-12-13 14:28:08 +07:00
afkarxyz	64d7f82e52	v6.8	2025-12-13 13:59:41 +07:00
afkarxyz	910420634c	v6.8	2025-12-13 13:36:36 +07:00
afkarxyz	22742f1ddd	v6.8	2025-12-13 13:32:09 +07:00
afkarxyz	5c1d6619b5	v6.8	2025-12-13 11:43:17 +07:00
Sepehr Aroofzade	76669f551e	Add FLAC lyrics embedding with LRCLIB fallback (#151 ) * Update lyrics code * Refactor DownloadFile to use default HTTP client	2025-12-13 04:09:22 +07:00
enriqueqs	ffd4daf031	fixed path issue (#157 ) Co-authored-by: afkarxyz <mzamzamafkarhadiq@gmail.com>	2025-12-12 17:31:13 +07:00
Heggo	64b86b65a1	Fix Linux Download Path (#153 ) * Fix Unknown being appended at the beginning of Download Path on Unix/Linux systems * Remove extra blank line in backend/filename.go	2025-12-12 17:27:09 +07:00
afkarxyz	8f10094e40	v6.7	2025-12-08 19:33:43 +07:00
afkarxyz	2fb544d1f8	v6.6	2025-12-05 05:26:33 +07:00
afkarxyz	d16eaa324a	v6.6	2025-12-05 05:25:50 +07:00
afkarxyz	cc3f7640c6	v6.5	2025-11-30 05:38:44 +07:00
Lukas	2653586eea	Download Queue & Progress UI (#123 ) * Add download queue tracking and UI integration Introduces backend support for a download queue with item tracking, status updates, and session statistics. Adds frontend components and hooks for displaying and managing the download queue, including a dialog and toast indicator. Updates download logic to pre-add items to the queue, track progress, and handle completion, skipping, and failure states. Integrates @radix-ui/react-scroll-area for improved UI scrolling. * Add session stats to DownloadQueue dialog Introduces session statistics (downloaded amount, speed, and duration) to the DownloadQueue dialog for improved user feedback. Also adjusts dialog sizing for better display and removes the sm:max-w-lg restriction in dialog.tsx for more flexible width.	2025-11-29 17:36:58 +07:00
afkarxyz	0c92385c56	v6.4	2025-11-27 14:14:19 +07:00
afkarxyz	957fb83dbc	v6.4	2025-11-27 06:49:33 +07:00
afkarxyz	90f1871488	UPX	2025-11-27 04:58:53 +07:00
afkarxyz	2d0e5055f8	UPX	2025-11-27 04:52:16 +07:00
afkarxyz	08d02be4f2	v6.3	2025-11-26 10:55:08 +07:00
afkarxyz	5b542dcf29	v6.3	2025-11-26 10:48:26 +07:00
afkarxyz	48f9584027	v6.3	2025-11-26 10:47:02 +07:00
afkarxyz	4241a591aa	Fallback Tidal with search and ISRC matching	2025-11-26 07:32:26 +07:00
afkarxyz	f346fbb6ba	Refactor README.md for badge updates and formatting	2025-11-26 04:51:34 +07:00
Lukas	2172981110	Add FLAC audio quality analysis and spectrum visualization (#110 ) Introduces backend support for analyzing FLAC audio files, including technical metrics and frequency spectrum extraction. Adds frontend components and hooks for file selection, analysis, and visualization, integrating a new Audio Quality Analyzer dialog into the UI. Updates types and dependencies to support audio analysis features.	2025-11-26 04:05:12 +07:00
afkarxyz	ddf1844237	v6.2	2025-11-25 13:25:29 +07:00
afkarxyz	3a5aea4c91	v6.2	2025-11-25 13:19:11 +07:00
afkarxyz	6b4ad16882	v6.2	2025-11-25 13:15:43 +07:00
afkarxyz	4dbd88e689	v6.1	2025-11-24 15:19:25 +07:00
afkarxyz	d0665fdcc5	v6.1	2025-11-24 15:15:35 +07:00
afkarxyz	6ee3c2f653	v6.1	2025-11-24 14:52:47 +07:00
afkarxyz	73d8205f6f	v6.0	2025-11-24 05:29:06 +07:00
afkarxyz	17fe37fbb7	v6.0	2025-11-24 05:22:04 +07:00
afkarxyz	afe55db107	v6.0	2025-11-24 05:19:25 +07:00
afkarxyz	8a553774c6	v6.0	2025-11-24 05:15:24 +07:00
afkarxyz	869bf50330	SpotiDownloader	2025-11-24 03:35:26 +07:00
afkarxyz	1c03aaa92f	v5.9	2025-11-23 10:40:27 +07:00
afkarxyz	1423a32528	v5.9	2025-11-23 10:32:53 +07:00
afkarxyz	633812faab	v5.8	2025-11-23 05:45:30 +07:00
afkarxyz	355b68c8de	v5.8	2025-11-23 05:36:11 +07:00
afkarxyz	884716069c	v5.7-patch1-build4	2025-11-23 05:24:26 +07:00
afkarxyz	44658f6ba6	v5.7-patch1-build3	2025-11-23 05:11:51 +07:00
afkarxyz	f9974d4a3e	v5.7-patch1-build2	2025-11-23 05:09:02 +07:00
afkarxyz	840f26dd6f	v5.7-patch1-build1	2025-11-23 05:05:15 +07:00
afkarxyz	5831a45839	v5.7-patch1	2025-11-23 04:58:45 +07:00
afkarxyz	d1bd7da2de	Update screenshot in README.md	2025-11-23 04:48:12 +07:00
afkarxyz	033980bbd2	Add 'jakarta.monochrome.tf' to tidal.json	2025-11-23 02:35:11 +07:00
afkarxyz	3ae039d7db	v5.7	2025-11-22 18:08:34 +07:00
afkarxyz	436a98c606	Replace screenshot in README.md Updated screenshot in the README file.	2025-11-22 18:06:24 +07:00
afkarxyz	d90221b835	v5.7	2025-11-22 17:59:48 +07:00
afkarxyz	8a2dbe4e32	v5.7-beta3	2025-11-22 15:45:17 +07:00
afkarxyz	ee2976143a	v5.7-beta2	2025-11-22 12:06:00 +07:00
afkarxyz	1c9bba0140	Update screenshot in README.md	2025-11-22 12:03:50 +07:00
afkarxyz	10236f00c6	v5.7-beta1	2025-11-22 11:46:36 +07:00
Ahmed Alghafri	a49bb560bd	Add cross-platform path handling (#89 ) Add cross-platform path handling support - Add sanitizePath, joinPath, buildOutputPath utilities - Add operatingSystem to Settings interface - Replace hardcoded Windows paths with dynamic path handling - Support Windows, Linux, and macOS	2025-11-22 10:36:25 +07:00
afkarxyz	bb9e2dcbb6	v5.6	2025-11-22 07:42:41 +07:00
afkarxyz	7aeefc1fe5	v5.6 Added a download link to the README.	2025-11-22 07:42:21 +07:00
afkarxyz	78afdbf77f	Update build.yml	2025-11-22 07:31:25 +07:00
afkarxyz	68e2699941	Update build.yml	2025-11-22 07:25:57 +07:00
afkarxyz	cb6515898a	Update build.yml	2025-11-22 07:05:35 +07:00
afkarxyz	5fcd1f2f75	Update build.yml	2025-11-22 06:59:23 +07:00
afkarxyz	ba732f03b0	Update build.yml	2025-11-22 06:55:21 +07:00
afkarxyz	427fd33a41	Update build.yml	2025-11-22 06:50:20 +07:00
afkarxyz	b4204a3343	Update build.yml	2025-11-22 06:30:52 +07:00
afkarxyz	9107f9a5fd	Update README with new images and download links	2025-11-22 06:29:14 +07:00
afkarxyz	0c284ba62c	v5.6	2025-11-22 06:16:18 +07:00
afkarxyz	50ca20ce0f	v5.5	2025-11-21 23:36:49 +07:00
afkarxyz	80888ca5ad	v5.5	2025-11-21 23:32:51 +07:00
afkarxyz	b8811d9881	Update README.md	2025-11-21 23:30:49 +07:00
afkarxyz	a7bcc0249c	Update tidal.json	2025-11-21 02:41:06 +07:00
afkarxyz	735c7cb117	Replace image link in README.md	2025-11-17 13:03:02 +07:00
afkarxyz	05c0f50243	v5.4	2025-11-17 12:52:12 +07:00
afkarxyz	711c5a98d3	v5.4	2025-11-17 12:48:04 +07:00
afkarxyz	fd949a17f0	Add tidal.json with a list of sites	2025-11-17 11:49:38 +07:00
afkarxyz	1c0de8b3ac	Merge pull request #69 from MaitreGEEK/patch-1 Update download link to latest release	2025-10-22 13:48:50 +07:00
MaîtreGEEK	b653a8ca41	Update download link to latest release In that way when you release a new version you don't have to modify the README	2025-10-22 08:46:20 +02:00
afkarxyz	2d0c174c50	v5.3	2025-10-22 05:17:57 +07:00
afkarxyz	c63eeccc55	v5.3	2025-10-22 05:17:22 +07:00
afkarxyz	a620c16b1c	v5.3	2025-10-22 05:13:44 +07:00
afkarxyz	cf27ae098d	v5.2	2025-10-21 03:26:31 +07:00
afkarxyz	a0c60a473a	.	2025-10-21 03:26:01 +07:00
afkarxyz	25c5a4d175	v5.2	2025-10-21 03:23:28 +07:00
afkarxyz	33a6137f75	v5.1	2025-10-21 02:16:31 +07:00
afkarxyz	b4fcb6bca6	v5.1	2025-10-21 02:11:41 +07:00
afkarxyz	5ab19a6d37	.	2025-10-21 02:10:50 +07:00
afkarxyz	8547e6d410	v5.0	2025-10-13 05:37:10 +07:00
afkarxyz	17666d8027	Update version.json	2025-10-13 05:16:51 +07:00
afkarxyz	ab208482ca	v5.0	2025-10-13 05:09:53 +07:00
afkarxyz	76e02d77e8	v5.0	2025-10-13 05:05:01 +07:00
afkarxyz	75cc4543ad	Merge pull request #65 from petacz/patch-1 Use Embedded ISRC Tags to check for existing files	2025-10-13 04:55:34 +07:00
Petr V	0b468c4b60	Use Embedded ISRC Tags to check for existing files	2025-10-12 19:53:28 +02:00
afkarxyz	87a6a778f7	v4.9	2025-10-12 00:30:15 +07:00
afkarxyz	ef893ab9f4	v4.9	2025-10-12 00:26:01 +07:00
afkarxyz	3eda3245ca	v4.9	2025-10-12 00:23:26 +07:00
afkarxyz	f6f238361c	v4.9	2025-10-12 00:22:30 +07:00
afkarxyz	998730bbb3	v4.8	2025-10-11 18:18:27 +07:00
afkarxyz	56a1d29d78	v4.8	2025-10-11 18:17:07 +07:00
afkarxyz	4b7316636e	v4.7	2025-10-05 04:03:54 +07:00
afkarxyz	55669ec45f	v4.7	2025-10-05 03:59:50 +07:00
afkarxyz	3304b13828	Update README.md	2025-10-05 03:42:30 +07:00
afkarxyz	579bb1415a	Merge pull request #61 from value1338/main Add button to auto-delete already downloaded files and retry failed ones	2025-10-05 03:40:21 +07:00
afkarxyz	f0e71261a5	Update version.json	2025-10-05 03:39:40 +07:00
value1338	e2ad51da34	included Skipped Songs for Removal from Playlist	2025-10-04 13:06:13 +02:00
value1338	9e403ab1ba	deleted comments in the code	2025-10-03 20:21:12 +02:00
value1338	7058559ddc	Add button to auto-delete already downloaded files and retry failed ones	2025-10-03 19:47:51 +02:00
afkarxyz	861f303a4f	v4.6	2025-09-20 08:34:27 +07:00
afkarxyz	9a28e8bd94	v4.6	2025-09-20 08:32:12 +07:00
afkarxyz	f75385c4e8	open.spotify.com/intl-pt	2025-09-16 15:37:54 +07:00
afkarxyz	2eac274ee0	v4.5	2025-09-11 13:28:49 +07:00