v7.1.3

2026-04-02 18:42:35 +07:00
parent f13359df7f
commit 2bc2c0bf03
48 changed files with 3409 additions and 1038 deletions
@@ -0,0 +1,128 @@
+package backend
+
+import (
+	"encoding/json"
+	"fmt"
+	"html"
+	"io"
+	"net/http"
+	"regexp"
+	"strings"
+)
+
+var songstatsScriptPattern = regexp.MustCompile(`(?is)<script[^>]+type=["']application/ld\+json["'][^>]*>(.*?)</script>`)
+
+func (s *SongLinkClient) populateLinksFromSongstats(links *resolvedTrackLinks, isrc string) error {
+	pageURL := fmt.Sprintf("https://songstats.com/%s?ref=ISRCFinder", strings.ToUpper(strings.TrimSpace(isrc)))
+
+	req, err := http.NewRequest(http.MethodGet, pageURL, nil)
+	if err != nil {
+		return fmt.Errorf("failed to create request: %w", err)
+	}
+	req.Header.Set("User-Agent", songLinkUserAgent)
+
+	resp, err := s.client.Do(req)
+	if err != nil {
+		return fmt.Errorf("failed to fetch Songstats page: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return fmt.Errorf("Songstats returned status %d", resp.StatusCode)
+	}
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return fmt.Errorf("failed to read Songstats response: %w", err)
+	}
+
+	matches := songstatsScriptPattern.FindAllStringSubmatch(string(body), -1)
+	if len(matches) == 0 {
+		return fmt.Errorf("Songstats JSON-LD not found")
+	}
+
+	found := false
+	for _, match := range matches {
+		if len(match) < 2 {
+			continue
+		}
+
+		scriptBody := strings.TrimSpace(html.UnescapeString(match[1]))
+		if scriptBody == "" {
+			continue
+		}
+
+		var payload interface{}
+		if err := json.Unmarshal([]byte(scriptBody), &payload); err != nil {
+			continue
+		}
+
+		before := *links
+		collectSongstatsLinks(payload, links)
+		if *links != before {
+			found = true
+		}
+	}
+
+	if !found && !hasAnySongLinkData(links) {
+		return fmt.Errorf("no platform links found in Songstats")
+	}
+
+	return nil
+}
+
+func collectSongstatsLinks(value interface{}, links *resolvedTrackLinks) {
+	switch typed := value.(type) {
+	case map[string]interface{}:
+		if sameAs, ok := typed["sameAs"]; ok {
+			applySongstatsSameAs(sameAs, links)
+		}
+		for _, nested := range typed {
+			collectSongstatsLinks(nested, links)
+		}
+	case []interface{}:
+		for _, nested := range typed {
+			collectSongstatsLinks(nested, links)
+		}
+	}
+}
+
+func applySongstatsSameAs(value interface{}, links *resolvedTrackLinks) {
+	switch typed := value.(type) {
+	case string:
+		assignSongstatsLink(typed, links)
+	case []interface{}:
+		for _, item := range typed {
+			if link, ok := item.(string); ok {
+				assignSongstatsLink(link, links)
+			}
+		}
+	}
+}
+
+func assignSongstatsLink(rawLink string, links *resolvedTrackLinks) {
+	link := strings.TrimSpace(rawLink)
+	if link == "" {
+		return
+	}
+
+	switch {
+	case strings.Contains(link, "listen.tidal.com/track"):
+		if links.TidalURL == "" {
+			links.TidalURL = link
+			fmt.Println("✓ Tidal URL found via Songstats")
+		}
+	case strings.Contains(link, "music.amazon.com"):
+		if links.AmazonURL == "" {
+			if normalized := normalizeAmazonMusicURL(link); normalized != "" {
+				links.AmazonURL = normalized
+				fmt.Println("✓ Amazon URL found via Songstats")
+			}
+		}
+	case strings.Contains(link, "deezer.com"):
+		if links.DeezerURL == "" {
+			links.DeezerURL = normalizeDeezerTrackURL(link)
+			fmt.Println("✓ Deezer URL found via Songstats")
+		}
+	}
+}