perf: optimize all providers for mobile networks with retry logic

- Add retry logic with exponential backoff to all providers (Qobuz, Tidal, Amazon, Deezer)
- Increase API timeouts: 15s → 25s (Qobuz/Tidal/Deezer), 30s (Amazon)
- Extract QobuzID/TidalID directly from SongLink URLs
- Add SongLink lookup strategy before ISRC search in Qobuz
- Cache hit now uses GetTrackByID() directly instead of re-searching
- Pre-warm cache tries SongLink first before direct ISRC search

CHANGELOG.md

@@ -1,5 +1,23 @@
 # Changelog
 
+## [3.4.2] - 2026-02-04
+
+### Improved
+
+- **Mobile Network Reliability**: All providers (Qobuz, Tidal, Amazon, Deezer) now have retry logic with exponential backoff
+  - Increased API timeouts: 15s → 25s (Deezer, Qobuz, Tidal), 30s (Amazon)
+  - Up to 3 retry attempts per API call (500ms → 1s → 2s backoff)
+  - Retryable: timeout, connection reset/refused, EOF, HTTP 5xx, HTTP 429
+- **SongLink ID Extraction**: Extract QobuzID/TidalID directly from SongLink URLs
+  - New fields in `TrackAvailability`: `QobuzID`, `TidalID`
+  - Qobuz/Tidal now use direct Track ID from SongLink instead of re-parsing URLs
+- **Qobuz Download Flow**: New Strategy 3 - get QobuzID from SongLink before ISRC search
+  - Cache hit now uses `GetTrackByID()` directly instead of searching again
+  - Pre-warm cache tries SongLink first before direct ISRC search
+- **Tidal Download Flow**: Use `availability.TidalID` directly from SongLink struct
+
+---
+
 ## [3.4.1] - 2026-02-04
 
 ### Fixed

go_backend/amazon.go

@@ -17,6 +17,13 @@ import (
 	"time"
 )
 
+// Amazon API timeout and retry configuration for mobile networks
+const (
+	amazonAPITimeoutMobile = 30 * time.Second // Longer timeout for unstable mobile networks
+	amazonMaxRetries       = 2                // Number of retry attempts
+	amazonRetryDelay       = 500 * time.Millisecond
+)
+
 type AmazonDownloader struct {
 	client *http.Client
 }
@@ -36,15 +43,6 @@ type AfkarXYZResponse struct {
 	} `json:"data"`
 }
 
-func amazonIsASCIIString(s string) bool {
-	for _, r := range s {
-		if r > 127 {
-			return false
-		}
-	}
-	return true
-}
-
 func NewAmazonDownloader() *AmazonDownloader {
 	amazonDownloaderOnce.Do(func() {
 		globalAmazonDownloader = &AmazonDownloader{
@@ -54,12 +52,50 @@ func NewAmazonDownloader() *AmazonDownloader {
 	return globalAmazonDownloader
 }
 
-func (a *AmazonDownloader) downloadFromAfkarXYZ(amazonURL string) (string, string, error) {
+// fetchAmazonURLWithRetry fetches from AfkarXYZ API with retry logic for mobile networks
+func (a *AmazonDownloader) fetchAmazonURLWithRetry(amazonURL string) (string, string, error) {
 	apiURL := "https://amazon.afkarxyz.fun/convert?url=" + url.QueryEscape(amazonURL)
 
-	GoLog("[Amazon] Fetching from AfkarXYZ API...\n")
+	var lastErr error
+	for attempt := 0; attempt <= amazonMaxRetries; attempt++ {
+		if attempt > 0 {
+			delay := amazonRetryDelay * time.Duration(1<<(attempt-1)) // Exponential backoff
+			GoLog("[Amazon] Retry %d/%d after %v...\n", attempt, amazonMaxRetries, delay)
+			time.Sleep(delay)
+		}
 
-	req, err := http.NewRequest("GET", apiURL, nil)
+		downloadURL, fileName, err := a.doAfkarXYZRequest(apiURL)
+		if err == nil {
+			return downloadURL, fileName, nil
+		}
+
+		lastErr = err
+		errStr := err.Error()
+
+		// Check if error is retryable
+		isRetryable := strings.Contains(errStr, "timeout") ||
+			strings.Contains(errStr, "connection reset") ||
+			strings.Contains(errStr, "connection refused") ||
+			strings.Contains(errStr, "EOF") ||
+			strings.Contains(errStr, "status 5") ||
+			strings.Contains(errStr, "status 429")
+
+		if !isRetryable {
+			return "", "", err
+		}
+
+		GoLog("[Amazon] Attempt %d failed (retryable): %v\n", attempt+1, err)
+	}
+
+	return "", "", fmt.Errorf("all %d attempts failed: %w", amazonMaxRetries+1, lastErr)
+}
+
+// doAfkarXYZRequest performs a single request to AfkarXYZ API
+func (a *AmazonDownloader) doAfkarXYZRequest(apiURL string) (string, string, error) {
+	ctx, cancel := context.WithTimeout(context.Background(), amazonAPITimeoutMobile)
+	defer cancel()
+
+	req, err := http.NewRequestWithContext(ctx, "GET", apiURL, nil)
 	if err != nil {
 		return "", "", fmt.Errorf("failed to create request: %w", err)
 	}
@@ -98,11 +134,21 @@ func (a *AmazonDownloader) downloadFromAfkarXYZ(amazonURL string) (string, strin
 	reg := regexp.MustCompile(`[<>:"/\\|?*]`)
 	fileName = reg.ReplaceAllString(fileName, "")
 
-	GoLog("[Amazon] AfkarXYZ returned: %s (%.2f MB)\n", fileName, float64(apiResp.Data.FileSize)/(1024*1024))
-
 	return apiResp.Data.DirectLink, fileName, nil
 }
 
+func (a *AmazonDownloader) downloadFromAfkarXYZ(amazonURL string) (string, string, error) {
+	GoLog("[Amazon] Fetching from AfkarXYZ API...\n")
+
+	downloadURL, fileName, err := a.fetchAmazonURLWithRetry(amazonURL)
+	if err != nil {
+		return "", "", err
+	}
+
+	GoLog("[Amazon] AfkarXYZ returned: %s\n", fileName)
+	return downloadURL, fileName, nil
+}
+
 func (a *AmazonDownloader) DownloadFile(downloadURL, outputPath, itemID string) error {
 	ctx := context.Background()
 
@@ -206,25 +252,40 @@ func downloadFromAmazon(req DownloadRequest) (AmazonDownloadResult, error) {
 		return AmazonDownloadResult{FilePath: "EXISTS:" + existingFile}, nil
 	}
 
+	amazonURL := ""
+	if req.ISRC != "" {
+		if cached := GetTrackIDCache().Get(req.ISRC); cached != nil && cached.AmazonURL != "" {
+			amazonURL = cached.AmazonURL
+			GoLog("[Amazon] Cache hit! Using cached Amazon URL for ISRC %s\n", req.ISRC)
+		}
+	}
+
 	songlink := NewSongLinkClient()
 	var availability *TrackAvailability
 	var err error
 
-	if deezerID, found := strings.CutPrefix(req.SpotifyID, "deezer:"); found {
-		GoLog("[Amazon] Using Deezer ID for SongLink lookup: %s\n", deezerID)
-		availability, err = songlink.CheckAvailabilityFromDeezer(deezerID)
-	} else if req.SpotifyID != "" {
-		availability, err = songlink.CheckTrackAvailability(req.SpotifyID, req.ISRC)
-	} else {
-		return AmazonDownloadResult{}, fmt.Errorf("no valid Spotify or Deezer ID provided for Amazon lookup")
-	}
+	if amazonURL == "" {
+		if deezerID, found := strings.CutPrefix(req.SpotifyID, "deezer:"); found {
+			GoLog("[Amazon] Using Deezer ID for SongLink lookup: %s\n", deezerID)
+			availability, err = songlink.CheckAvailabilityFromDeezer(deezerID)
+		} else if req.SpotifyID != "" {
+			availability, err = songlink.CheckTrackAvailability(req.SpotifyID, req.ISRC)
+		} else {
+			return AmazonDownloadResult{}, fmt.Errorf("no valid Spotify or Deezer ID provided for Amazon lookup")
+		}
 
-	if err != nil {
-		return AmazonDownloadResult{}, fmt.Errorf("failed to check Amazon availability via SongLink: %w", err)
-	}
+		if err != nil {
+			return AmazonDownloadResult{}, fmt.Errorf("failed to check Amazon availability via SongLink: %w", err)
+		}
 
-	if !availability.Amazon || availability.AmazonURL == "" {
-		return AmazonDownloadResult{}, fmt.Errorf("track not available on Amazon Music (SongLink returned no Amazon URL)")
+		if !availability.Amazon || availability.AmazonURL == "" {
+			return AmazonDownloadResult{}, fmt.Errorf("track not available on Amazon Music (SongLink returned no Amazon URL)")
+		}
+
+		amazonURL = availability.AmazonURL
+		if req.ISRC != "" {
+			GetTrackIDCache().SetAmazonURL(req.ISRC, amazonURL)
+		}
 	}
 
 	if req.OutputDir != "." {
@@ -234,7 +295,7 @@ func downloadFromAmazon(req DownloadRequest) (AmazonDownloadResult, error) {
 	}
 
 	// Download using AfkarXYZ API
-	downloadURL, _, err := downloader.downloadFromAfkarXYZ(availability.AmazonURL)
+	downloadURL, _, err := downloader.downloadFromAfkarXYZ(amazonURL)
 	if err != nil {
 		return AmazonDownloadResult{}, fmt.Errorf("failed to get download URL from AfkarXYZ: %w", err)
 	}

go_backend/deezer.go

@@ -23,6 +23,11 @@ const (
 	deezerCacheTTL = 10 * time.Minute
 
 	deezerMaxParallelISRC = 10
+
+	// Deezer API timeout and retry configuration for mobile networks
+	deezerAPITimeoutMobile = 25 * time.Second
+	deezerMaxRetries       = 2
+	deezerRetryDelay       = 500 * time.Millisecond
 )
 
 type DeezerClient struct {
@@ -42,7 +47,7 @@ var (
 func GetDeezerClient() *DeezerClient {
 	deezerClientOnce.Do(func() {
 		deezerClient = &DeezerClient{
-			httpClient:  NewHTTPClientWithTimeout(15 * time.Second),
+			httpClient:  NewHTTPClientWithTimeout(deezerAPITimeoutMobile),
 			searchCache: make(map[string]*cacheEntry),
 			albumCache:  make(map[string]*cacheEntry),
 			artistCache: make(map[string]*cacheEntry),
@@ -992,6 +997,42 @@ func (c *DeezerClient) GetExtendedMetadataByISRC(ctx context.Context, isrc strin
 }
 
 func (c *DeezerClient) getJSON(ctx context.Context, endpoint string, dst interface{}) error {
+	var lastErr error
+
+	for attempt := 0; attempt <= deezerMaxRetries; attempt++ {
+		if attempt > 0 {
+			delay := deezerRetryDelay * time.Duration(1<<(attempt-1)) // Exponential backoff
+			GoLog("[Deezer] Retry %d/%d after %v...\n", attempt, deezerMaxRetries, delay)
+			time.Sleep(delay)
+		}
+
+		err := c.doGetJSON(ctx, endpoint, dst)
+		if err == nil {
+			return nil
+		}
+
+		lastErr = err
+		errStr := err.Error()
+
+		// Check if error is retryable
+		isRetryable := strings.Contains(errStr, "timeout") ||
+			strings.Contains(errStr, "connection reset") ||
+			strings.Contains(errStr, "connection refused") ||
+			strings.Contains(errStr, "EOF") ||
+			strings.Contains(errStr, "status 5") ||
+			strings.Contains(errStr, "status 429")
+
+		if !isRetryable {
+			return err
+		}
+
+		GoLog("[Deezer] Attempt %d failed (retryable): %v\n", attempt+1, err)
+	}
+
+	return fmt.Errorf("all %d attempts failed: %w", deezerMaxRetries+1, lastErr)
+}
+
+func (c *DeezerClient) doGetJSON(ctx context.Context, endpoint string, dst interface{}) error {
 	req, err := http.NewRequestWithContext(ctx, http.MethodGet, endpoint, nil)
 	if err != nil {
 		return err

go_backend/parallel.go

@@ -1,6 +1,7 @@
 package gobackend
 
 import (
+	"encoding/json"
 	"fmt"
 	"sync"
 	"time"
@@ -9,7 +10,7 @@ import (
 type TrackIDCacheEntry struct {
 	TidalTrackID  int64
 	QobuzTrackID  int64
-	AmazonTrackID string
+	AmazonURL     string
 	ExpiresAt     time.Time
 }
 
@@ -106,7 +107,7 @@ func (c *TrackIDCache) SetQobuz(isrc string, trackID int64) {
 	}
 }
 
-func (c *TrackIDCache) SetAmazon(isrc string, trackID string) {
+func (c *TrackIDCache) SetAmazonURL(isrc string, amazonURL string) {
 	c.mu.Lock()
 	defer c.mu.Unlock()
 
@@ -115,7 +116,7 @@ func (c *TrackIDCache) SetAmazon(isrc string, trackID string) {
 		entry = &TrackIDCacheEntry{}
 		c.cache[isrc] = entry
 	}
-	entry.AmazonTrackID = trackID
+	entry.AmazonURL = amazonURL
 	now := time.Now()
 	entry.ExpiresAt = now.Add(c.ttl)
 
@@ -156,17 +157,20 @@ func FetchCoverAndLyricsParallel(
 ) *ParallelDownloadResult {
 	result := &ParallelDownloadResult{}
 	var wg sync.WaitGroup
+	var resultMu sync.Mutex
 
 	if coverURL != "" {
 		wg.Add(1)
 		go func() {
 			defer wg.Done()
 			data, err := downloadCoverToMemory(coverURL, maxQualityCover)
+			resultMu.Lock()
 			if err != nil {
 				result.CoverErr = err
 			} else {
 				result.CoverData = data
 			}
+			resultMu.Unlock()
 		}()
 	}
 
@@ -177,6 +181,7 @@ func FetchCoverAndLyricsParallel(
 			client := NewLyricsClient()
 			durationSec := float64(durationMs) / 1000.0
 			lyrics, err := client.FetchLyricsAllSources(spotifyID, trackName, artistName, durationSec)
+			resultMu.Lock()
 			if err != nil {
 				result.LyricsErr = err
 			} else if lyrics != nil && len(lyrics.Lines) > 0 {
@@ -185,6 +190,7 @@ func FetchCoverAndLyricsParallel(
 			} else {
 				result.LyricsErr = fmt.Errorf("no lyrics found")
 			}
+			resultMu.Unlock()
 		}()
 	}
 
@@ -211,6 +217,9 @@ func PreWarmTrackCache(requests []PreWarmCacheRequest) {
 	var wg sync.WaitGroup
 
 	for _, req := range requests {
+		if req.ISRC == "" {
+			continue
+		}
 		if cached := cache.Get(req.ISRC); cached != nil {
 			continue
 		}
@@ -225,7 +234,7 @@ func PreWarmTrackCache(requests []PreWarmCacheRequest) {
 			case "tidal":
 				preWarmTidalCache(r.ISRC, r.TrackName, r.ArtistName)
 			case "qobuz":
-				preWarmQobuzCache(r.ISRC)
+				preWarmQobuzCache(r.ISRC, r.SpotifyID)
 			case "amazon":
 				preWarmAmazonCache(r.ISRC, r.SpotifyID)
 			}
@@ -243,10 +252,30 @@ func preWarmTidalCache(isrc, _, _ string) {
 	}
 }
 
-func preWarmQobuzCache(isrc string) {
+// preWarmQobuzCache tries to get Qobuz Track ID in the following order:
+// 1. From SongLink (fast, no Qobuz API call needed)
+// 2. Direct ISRC search on Qobuz API (slower, may fail if ISRC not in Qobuz database)
+func preWarmQobuzCache(isrc, spotifyID string) {
+	// First, try to get QobuzID from SongLink - this is faster and more reliable
+	if spotifyID != "" {
+		client := NewSongLinkClient()
+		availability, err := client.CheckTrackAvailability(spotifyID, isrc)
+		if err == nil && availability != nil && availability.QobuzID != "" {
+			// Parse QobuzID to int64
+			var trackID int64
+			if _, parseErr := fmt.Sscanf(availability.QobuzID, "%d", &trackID); parseErr == nil && trackID > 0 {
+				GoLog("[Qobuz] Pre-warm cache: Got Qobuz ID %d from SongLink for ISRC %s\n", trackID, isrc)
+				GetTrackIDCache().SetQobuz(isrc, trackID)
+				return
+			}
+		}
+	}
+
+	// Fallback: Direct ISRC search on Qobuz API
 	downloader := NewQobuzDownloader()
 	track, err := downloader.SearchTrackByISRC(isrc)
 	if err == nil && track != nil {
+		GoLog("[Qobuz] Pre-warm cache: Got Qobuz ID %d from direct ISRC search for %s\n", track.ID, isrc)
 		GetTrackIDCache().SetQobuz(isrc, track.ID)
 	}
 }
@@ -254,13 +283,34 @@ func preWarmQobuzCache(isrc string) {
 func preWarmAmazonCache(isrc, spotifyID string) {
 	client := NewSongLinkClient()
 	availability, err := client.CheckTrackAvailability(spotifyID, isrc)
-	if err == nil && availability != nil && availability.Amazon {
-		GetTrackIDCache().SetAmazon(isrc, availability.AmazonURL)
+	if err == nil && availability != nil && availability.AmazonURL != "" {
+		GetTrackIDCache().SetAmazonURL(isrc, availability.AmazonURL)
 	}
 }
 
 func PreWarmCache(tracksJSON string) error {
-	var requests []PreWarmCacheRequest
+	var tracks []struct {
+		ISRC       string `json:"isrc"`
+		TrackName  string `json:"track_name"`
+		ArtistName string `json:"artist_name"`
+		SpotifyID  string `json:"spotify_id"`
+		Service    string `json:"service"`
+	}
+
+	if err := json.Unmarshal([]byte(tracksJSON), &tracks); err != nil {
+		return fmt.Errorf("failed to parse tracks JSON: %w", err)
+	}
+
+	requests := make([]PreWarmCacheRequest, len(tracks))
+	for i, t := range tracks {
+		requests[i] = PreWarmCacheRequest{
+			ISRC:       t.ISRC,
+			TrackName:  t.TrackName,
+			ArtistName: t.ArtistName,
+			SpotifyID:  t.SpotifyID,
+			Service:    t.Service,
+		}
+	}
 
 	go PreWarmTrackCache(requests)
 	return nil

go_backend/qobuz.go

@@ -725,75 +725,141 @@ type qobuzAPIResult struct {
 	duration    time.Duration
 }
 
+// Qobuz API timeout configuration
+// Mobile networks are more unstable, so we use longer timeouts
+const (
+	qobuzAPITimeoutDesktop = 15 * time.Second
+	qobuzAPITimeoutMobile  = 25 * time.Second
+	qobuzMaxRetries        = 2 // Number of retries per API
+	qobuzRetryDelay        = 500 * time.Millisecond
+)
+
+// getQobuzAPITimeout returns appropriate timeout based on platform
+// For mobile (gomobile builds), we use longer timeouts
+func getQobuzAPITimeout() time.Duration {
+	// Since this runs in gomobile context, we always use mobile timeout
+	// The Go backend is only used on mobile (Android/iOS)
+	return qobuzAPITimeoutMobile
+}
+
+// fetchQobuzURLWithRetry fetches download URL from a single Qobuz API with retry logic
+func fetchQobuzURLWithRetry(api string, trackID int64, quality string, timeout time.Duration) (string, error) {
+	var lastErr error
+	retryDelay := qobuzRetryDelay
+
+	for attempt := 0; attempt <= qobuzMaxRetries; attempt++ {
+		if attempt > 0 {
+			GoLog("[Qobuz] Retry %d/%d for %s after %v\n", attempt, qobuzMaxRetries, api, retryDelay)
+			time.Sleep(retryDelay)
+			retryDelay *= 2 // Exponential backoff
+		}
+
+		client := NewHTTPClientWithTimeout(timeout)
+		reqURL := fmt.Sprintf("%s%d&quality=%s", api, trackID, quality)
+
+		req, err := http.NewRequest("GET", reqURL, nil)
+		if err != nil {
+			lastErr = err
+			continue
+		}
+
+		resp, err := client.Do(req)
+		if err != nil {
+			lastErr = err
+			// Check for retryable errors (timeout, connection reset)
+			errStr := strings.ToLower(err.Error())
+			if strings.Contains(errStr, "timeout") ||
+				strings.Contains(errStr, "reset") ||
+				strings.Contains(errStr, "connection refused") ||
+				strings.Contains(errStr, "eof") {
+				continue // Retry
+			}
+			break // Non-retryable error
+		}
+		// Server errors are retryable
+		if resp.StatusCode >= 500 {
+			io.Copy(io.Discard, resp.Body)
+			resp.Body.Close()
+			lastErr = fmt.Errorf("HTTP %d", resp.StatusCode)
+			continue
+		}
+
+		// 429 rate limit - wait and retry
+		if resp.StatusCode == 429 {
+			io.Copy(io.Discard, resp.Body)
+			resp.Body.Close()
+			lastErr = fmt.Errorf("rate limited")
+			retryDelay = 2 * time.Second // Wait longer for rate limit
+			continue
+		}
+
+		if resp.StatusCode != 200 {
+			io.Copy(io.Discard, resp.Body)
+			resp.Body.Close()
+			return "", fmt.Errorf("HTTP %d", resp.StatusCode)
+		}
+
+		body, err := io.ReadAll(resp.Body)
+		resp.Body.Close()
+		if err != nil {
+			lastErr = err
+			continue
+		}
+
+		if len(body) > 0 && body[0] == '<' {
+			return "", fmt.Errorf("received HTML instead of JSON")
+		}
+
+		var errorResp struct {
+			Error string `json:"error"`
+		}
+		if json.Unmarshal(body, &errorResp) == nil && errorResp.Error != "" {
+			// API-level errors are usually not retryable (track not found, etc.)
+			return "", fmt.Errorf("%s", errorResp.Error)
+		}
+
+		var result struct {
+			URL string `json:"url"`
+		}
+		if err := json.Unmarshal(body, &result); err != nil {
+			lastErr = fmt.Errorf("invalid JSON: %v", err)
+			continue
+		}
+
+		if result.URL != "" {
+			return result.URL, nil
+		}
+
+		return "", fmt.Errorf("no download URL in response")
+	}
+
+	if lastErr != nil {
+		return "", lastErr
+	}
+	return "", fmt.Errorf("all retries failed")
+}
+
 func getQobuzDownloadURLParallel(apis []string, trackID int64, quality string) (string, string, error) {
 	if len(apis) == 0 {
 		return "", "", fmt.Errorf("no APIs available")
 	}
 
-	GoLog("[Qobuz] Requesting download URL from %d APIs in parallel...\n", len(apis))
+	GoLog("[Qobuz] Requesting download URL from %d APIs in parallel (with retry)...\n", len(apis))
 
 	resultChan := make(chan qobuzAPIResult, len(apis))
 	startTime := time.Now()
+	timeout := getQobuzAPITimeout()
 
 	for _, apiURL := range apis {
 		go func(api string) {
 			reqStart := time.Now()
-
-			client := NewHTTPClientWithTimeout(15 * time.Second)
-
-			reqURL := fmt.Sprintf("%s%d&quality=%s", api, trackID, quality)
-
-			req, err := http.NewRequest("GET", reqURL, nil)
-			if err != nil {
-				resultChan <- qobuzAPIResult{apiURL: api, err: err, duration: time.Since(reqStart)}
-				return
+			downloadURL, err := fetchQobuzURLWithRetry(api, trackID, quality, timeout)
+			resultChan <- qobuzAPIResult{
+				apiURL:      api,
+				downloadURL: downloadURL,
+				err:         err,
+				duration:    time.Since(reqStart),
 			}
-
-			resp, err := client.Do(req)
-			if err != nil {
-				resultChan <- qobuzAPIResult{apiURL: api, err: err, duration: time.Since(reqStart)}
-				return
-			}
-			defer resp.Body.Close()
-
-			if resp.StatusCode != 200 {
-				resultChan <- qobuzAPIResult{apiURL: api, err: fmt.Errorf("HTTP %d", resp.StatusCode), duration: time.Since(reqStart)}
-				return
-			}
-
-			body, err := io.ReadAll(resp.Body)
-			if err != nil {
-				resultChan <- qobuzAPIResult{apiURL: api, err: err, duration: time.Since(reqStart)}
-				return
-			}
-
-			if len(body) > 0 && body[0] == '<' {
-				resultChan <- qobuzAPIResult{apiURL: api, err: fmt.Errorf("received HTML instead of JSON"), duration: time.Since(reqStart)}
-				return
-			}
-
-			var errorResp struct {
-				Error string `json:"error"`
-			}
-			if json.Unmarshal(body, &errorResp) == nil && errorResp.Error != "" {
-				resultChan <- qobuzAPIResult{apiURL: api, err: fmt.Errorf("%s", errorResp.Error), duration: time.Since(reqStart)}
-				return
-			}
-
-			var result struct {
-				URL string `json:"url"`
-			}
-			if err := json.Unmarshal(body, &result); err != nil {
-				resultChan <- qobuzAPIResult{apiURL: api, err: fmt.Errorf("invalid JSON: %v", err), duration: time.Since(reqStart)}
-				return
-			}
-
-			if result.URL != "" {
-				resultChan <- qobuzAPIResult{apiURL: api, downloadURL: result.URL, err: nil, duration: time.Since(reqStart)}
-				return
-			}
-
-			resultChan <- qobuzAPIResult{apiURL: api, err: fmt.Errorf("no download URL in response"), duration: time.Since(reqStart)}
 		}(apiURL)
 	}
 
@@ -964,6 +1030,7 @@ func downloadFromQobuz(req DownloadRequest) (QobuzDownloadResult, error) {
 	var track *QobuzTrack
 	var err error
 
+	// Strategy 1: Use Qobuz ID from Odesli enrichment (fastest, most accurate)
 	if req.QobuzID != "" {
 		GoLog("[Qobuz] Using Qobuz ID from Odesli enrichment: %s\n", req.QobuzID)
 		var trackID int64
@@ -978,17 +1045,43 @@ func downloadFromQobuz(req DownloadRequest) (QobuzDownloadResult, error) {
 		}
 	}
 
+	// Strategy 2: Use cached Qobuz Track ID (fast, no search needed)
 	if track == nil && req.ISRC != "" {
 		if cached := GetTrackIDCache().Get(req.ISRC); cached != nil && cached.QobuzTrackID > 0 {
 			GoLog("[Qobuz] Cache hit! Using cached track ID: %d\n", cached.QobuzTrackID)
-			track, err = downloader.SearchTrackByISRC(req.ISRC)
+			track, err = downloader.GetTrackByID(cached.QobuzTrackID)
 			if err != nil {
-				GoLog("[Qobuz] Cache hit but search failed: %v\n", err)
+				GoLog("[Qobuz] Cache hit but GetTrackByID failed: %v\n", err)
 				track = nil
 			}
 		}
 	}
 
+	// Strategy 3: Try to get QobuzID from SongLink if we have SpotifyID
+	if track == nil && req.SpotifyID != "" && req.QobuzID == "" {
+		GoLog("[Qobuz] Trying to get Qobuz ID from SongLink for Spotify ID: %s\n", req.SpotifyID)
+		songLinkClient := NewSongLinkClient()
+		availability, slErr := songLinkClient.CheckTrackAvailability(req.SpotifyID, req.ISRC)
+		if slErr == nil && availability != nil && availability.QobuzID != "" {
+			var trackID int64
+			if _, parseErr := fmt.Sscanf(availability.QobuzID, "%d", &trackID); parseErr == nil && trackID > 0 {
+				GoLog("[Qobuz] Got Qobuz ID %d from SongLink\n", trackID)
+				track, err = downloader.GetTrackByID(trackID)
+				if err != nil {
+					GoLog("[Qobuz] Failed to get track by SongLink ID %d: %v\n", trackID, err)
+					track = nil
+				} else if track != nil {
+					GoLog("[Qobuz] Successfully found track via SongLink ID: '%s' by '%s'\n", track.Title, track.Performer.Name)
+					// Cache for future use
+					if req.ISRC != "" {
+						GetTrackIDCache().SetQobuz(req.ISRC, track.ID)
+					}
+				}
+			}
+		}
+	}
+
+	// Strategy 4: ISRC search with duration verification
 	if track == nil && req.ISRC != "" {
 		GoLog("[Qobuz] Trying ISRC search: %s\n", req.ISRC)
 		track, err = downloader.SearchTrackByISRCWithDuration(req.ISRC, expectedDurationSec)
@@ -1005,7 +1098,9 @@ func downloadFromQobuz(req DownloadRequest) (QobuzDownloadResult, error) {
 		}
 	}
 
+	// Strategy 5: Metadata search with strict matching (duration tolerance: 10 seconds)
 	if track == nil {
+		GoLog("[Qobuz] Trying metadata search: '%s' by '%s'\n", req.TrackName, req.ArtistName)
 		track, err = downloader.SearchTrackByMetadataWithDuration(req.TrackName, req.ArtistName, expectedDurationSec)
 		if track != nil && !qobuzArtistsMatch(req.ArtistName, track.Performer.Name) {
 			GoLog("[Qobuz] Artist mismatch from metadata search: expected '%s', got '%s'. Rejecting.\n",

go_backend/songlink.go

@@ -8,7 +8,6 @@ import (
 	"net/url"
 	"strings"
 	"sync"
-	"time"
 )
 
 type SongLinkClient struct {
@@ -26,6 +25,8 @@ type TrackAvailability struct {
 	QobuzURL  string `json:"qobuz_url,omitempty"`
 	DeezerURL string `json:"deezer_url,omitempty"`
 	DeezerID  string `json:"deezer_id,omitempty"`
+	QobuzID   string `json:"qobuz_id,omitempty"`
+	TidalID   string `json:"tidal_id,omitempty"`
 }
 
 var (
@@ -98,6 +99,7 @@ func (s *SongLinkClient) CheckTrackAvailability(spotifyTrackID string, isrc stri
 	if tidalLink, ok := songLinkResp.LinksByPlatform["tidal"]; ok && tidalLink.URL != "" {
 		availability.Tidal = true
 		availability.TidalURL = tidalLink.URL
+		availability.TidalID = extractTidalIDFromURL(tidalLink.URL)
 	}
 
 	if amazonLink, ok := songLinkResp.LinksByPlatform["amazonMusic"]; ok && amazonLink.URL != "" {
@@ -111,6 +113,12 @@ func (s *SongLinkClient) CheckTrackAvailability(spotifyTrackID string, isrc stri
 		availability.DeezerID = extractDeezerIDFromURL(deezerLink.URL)
 	}
 
+	if qobuzLink, ok := songLinkResp.LinksByPlatform["qobuz"]; ok && qobuzLink.URL != "" {
+		availability.Qobuz = true
+		availability.QobuzURL = qobuzLink.URL
+		availability.QobuzID = extractQobuzIDFromURL(qobuzLink.URL)
+	}
+
 	return availability, nil
 }
 
@@ -131,40 +139,6 @@ func (s *SongLinkClient) GetStreamingURLs(spotifyTrackID string) (map[string]str
 	return urls, nil
 }
 
-func checkQobuzAvailability(isrc string) bool {
-	client := NewHTTPClientWithTimeout(10 * time.Second)
-	appID := "798273057"
-
-	apiBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly93d3cucW9idXouY29tL2FwaS5qc29uLzAuMi90cmFjay9zZWFyY2g/cXVlcnk9")
-	searchURL := fmt.Sprintf("%s%s&limit=1&app_id=%s", string(apiBase), isrc, appID)
-
-	req, err := http.NewRequest("GET", searchURL, nil)
-	if err != nil {
-		return false
-	}
-
-	resp, err := DoRequestWithUserAgent(client, req)
-	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
-}
-
 // extractDeezerIDFromURL extracts Deezer track/album/artist ID from URL
 func extractDeezerIDFromURL(deezerURL string) string {
 	parts := strings.Split(deezerURL, "/")
@@ -178,6 +152,102 @@ func extractDeezerIDFromURL(deezerURL string) string {
 	return ""
 }
 
+// extractQobuzIDFromURL extracts Qobuz track ID from URL
+// URL formats:
+//   - https://www.qobuz.com/us-en/album/.../12345678 (album page with track highlight)
+//   - https://open.qobuz.com/track/12345678
+//   - https://www.qobuz.com/track/12345678
+//   - https://play.qobuz.com/track/12345678
+func extractQobuzIDFromURL(qobuzURL string) string {
+	if qobuzURL == "" {
+		return ""
+	}
+
+	// Try to find /track/ID pattern first
+	if strings.Contains(qobuzURL, "/track/") {
+		parts := strings.Split(qobuzURL, "/track/")
+		if len(parts) > 1 {
+			idPart := parts[1]
+			// Remove query parameters
+			if idx := strings.Index(idPart, "?"); idx > 0 {
+				idPart = idPart[:idx]
+			}
+			// Remove trailing slash or path
+			if idx := strings.Index(idPart, "/"); idx > 0 {
+				idPart = idPart[:idx]
+			}
+			idPart = strings.TrimSpace(idPart)
+			// Validate it's a number
+			if idPart != "" && isNumeric(idPart) {
+				return idPart
+			}
+		}
+	}
+
+	// Try to extract from album URL with track highlight
+	// Format: /album/albumname/trackid or ?trackId=12345678
+	if strings.Contains(qobuzURL, "trackId=") {
+		parts := strings.Split(qobuzURL, "trackId=")
+		if len(parts) > 1 {
+			idPart := parts[1]
+			if idx := strings.Index(idPart, "&"); idx > 0 {
+				idPart = idPart[:idx]
+			}
+			idPart = strings.TrimSpace(idPart)
+			if idPart != "" && isNumeric(idPart) {
+				return idPart
+			}
+		}
+	}
+
+	// Last resort: get last numeric segment from URL
+	parts := strings.Split(qobuzURL, "/")
+	for i := len(parts) - 1; i >= 0; i-- {
+		part := parts[i]
+		// Remove query parameters
+		if idx := strings.Index(part, "?"); idx > 0 {
+			part = part[:idx]
+		}
+		part = strings.TrimSpace(part)
+		if part != "" && isNumeric(part) {
+			return part
+		}
+	}
+
+	return ""
+}
+
+// extractTidalIDFromURL extracts Tidal track ID from URL
+// URL formats:
+//   - https://tidal.com/browse/track/12345678
+//   - https://listen.tidal.com/track/12345678
+func extractTidalIDFromURL(tidalURL string) string {
+	if tidalURL == "" {
+		return ""
+	}
+
+	if strings.Contains(tidalURL, "/track/") {
+		parts := strings.Split(tidalURL, "/track/")
+		if len(parts) > 1 {
+			idPart := parts[1]
+			if idx := strings.Index(idPart, "?"); idx > 0 {
+				idPart = idPart[:idx]
+			}
+			if idx := strings.Index(idPart, "/"); idx > 0 {
+				idPart = idPart[:idx]
+			}
+			idPart = strings.TrimSpace(idPart)
+			if idPart != "" && isNumeric(idPart) {
+				return idPart
+			}
+		}
+	}
+
+	return ""
+}
+
+// isNumeric is defined in library_scan.go
+
 func (s *SongLinkClient) GetDeezerIDFromSpotify(spotifyTrackID string) (string, error) {
 	availability, err := s.CheckTrackAvailability(spotifyTrackID, "")
 	if err != nil {
@@ -353,6 +423,7 @@ func (s *SongLinkClient) checkAvailabilityFromDeezerSongLink(deezerTrackID strin
 	if tidalLink, ok := songLinkResp.LinksByPlatform["tidal"]; ok && tidalLink.URL != "" {
 		availability.Tidal = true
 		availability.TidalURL = tidalLink.URL
+		availability.TidalID = extractTidalIDFromURL(tidalLink.URL)
 	}
 
 	if amazonLink, ok := songLinkResp.LinksByPlatform["amazonMusic"]; ok && amazonLink.URL != "" {
@@ -360,6 +431,12 @@ func (s *SongLinkClient) checkAvailabilityFromDeezerSongLink(deezerTrackID strin
 		availability.AmazonURL = amazonLink.URL
 	}
 
+	if qobuzLink, ok := songLinkResp.LinksByPlatform["qobuz"]; ok && qobuzLink.URL != "" {
+		availability.Qobuz = true
+		availability.QobuzURL = qobuzLink.URL
+		availability.QobuzID = extractQobuzIDFromURL(qobuzLink.URL)
+	}
+
 	if deezerLink, ok := songLinkResp.LinksByPlatform["deezer"]; ok && deezerLink.URL != "" {
 		availability.DeezerURL = deezerLink.URL
 	}
@@ -431,6 +508,7 @@ func (s *SongLinkClient) CheckAvailabilityByPlatform(platform, entityType, entit
 	if tidalLink, ok := songLinkResp.LinksByPlatform["tidal"]; ok && tidalLink.URL != "" {
 		availability.Tidal = true
 		availability.TidalURL = tidalLink.URL
+		availability.TidalID = extractTidalIDFromURL(tidalLink.URL)
 	}
 
 	if amazonLink, ok := songLinkResp.LinksByPlatform["amazonMusic"]; ok && amazonLink.URL != "" {
@@ -438,6 +516,12 @@ func (s *SongLinkClient) CheckAvailabilityByPlatform(platform, entityType, entit
 		availability.AmazonURL = amazonLink.URL
 	}
 
+	if qobuzLink, ok := songLinkResp.LinksByPlatform["qobuz"]; ok && qobuzLink.URL != "" {
+		availability.Qobuz = true
+		availability.QobuzURL = qobuzLink.URL
+		availability.QobuzID = extractQobuzIDFromURL(qobuzLink.URL)
+	}
+
 	if deezerLink, ok := songLinkResp.LinksByPlatform["deezer"]; ok && deezerLink.URL != "" {
 		availability.Deezer = true
 		availability.DeezerURL = deezerLink.URL
@@ -552,6 +636,7 @@ func (s *SongLinkClient) CheckAvailabilityFromURL(inputURL string) (*TrackAvaila
 	if tidalLink, ok := songLinkResp.LinksByPlatform["tidal"]; ok && tidalLink.URL != "" {
 		availability.Tidal = true
 		availability.TidalURL = tidalLink.URL
+		availability.TidalID = extractTidalIDFromURL(tidalLink.URL)
 	}
 	if amazonLink, ok := songLinkResp.LinksByPlatform["amazonMusic"]; ok && amazonLink.URL != "" {
 		availability.Amazon = true
@@ -560,6 +645,7 @@ func (s *SongLinkClient) CheckAvailabilityFromURL(inputURL string) (*TrackAvaila
 	if qobuzLink, ok := songLinkResp.LinksByPlatform["qobuz"]; ok && qobuzLink.URL != "" {
 		availability.Qobuz = true
 		availability.QobuzURL = qobuzLink.URL
+		availability.QobuzID = extractQobuzIDFromURL(qobuzLink.URL)
 	}
 	if deezerLink, ok := songLinkResp.LinksByPlatform["deezer"]; ok && deezerLink.URL != "" {
 		availability.Deezer = true

go_backend/tidal.go

@@ -582,12 +582,123 @@ type tidalAPIResult struct {
 	duration time.Duration
 }
 
+// Tidal API timeout configuration
+// Mobile networks are more unstable, so we use longer timeouts
+const (
+	tidalAPITimeoutMobile = 25 * time.Second
+	tidalMaxRetries       = 2 // Number of retries per API
+	tidalRetryDelay       = 500 * time.Millisecond
+)
+
+// fetchTidalURLWithRetry fetches download URL from a single Tidal API with retry logic
+func fetchTidalURLWithRetry(api string, trackID int64, quality string, timeout time.Duration) (TidalDownloadInfo, error) {
+	var lastErr error
+	retryDelay := tidalRetryDelay
+
+	for attempt := 0; attempt <= tidalMaxRetries; attempt++ {
+		if attempt > 0 {
+			GoLog("[Tidal] Retry %d/%d for %s after %v\n", attempt, tidalMaxRetries, api, retryDelay)
+			time.Sleep(retryDelay)
+			retryDelay *= 2 // Exponential backoff
+		}
+
+		client := NewHTTPClientWithTimeout(timeout)
+		reqURL := fmt.Sprintf("%s/track/?id=%d&quality=%s", api, trackID, quality)
+
+		req, err := http.NewRequest("GET", reqURL, nil)
+		if err != nil {
+			lastErr = err
+			continue
+		}
+
+		resp, err := client.Do(req)
+		if err != nil {
+			lastErr = err
+			// Check for retryable errors (timeout, connection reset)
+			errStr := strings.ToLower(err.Error())
+			if strings.Contains(errStr, "timeout") ||
+				strings.Contains(errStr, "reset") ||
+				strings.Contains(errStr, "connection refused") ||
+				strings.Contains(errStr, "eof") {
+				continue // Retry
+			}
+			break // Non-retryable error
+		}
+		// Server errors are retryable
+		if resp.StatusCode >= 500 {
+			io.Copy(io.Discard, resp.Body)
+			resp.Body.Close()
+			lastErr = fmt.Errorf("HTTP %d", resp.StatusCode)
+			continue
+		}
+
+		// 429 rate limit - wait and retry
+		if resp.StatusCode == 429 {
+			io.Copy(io.Discard, resp.Body)
+			resp.Body.Close()
+			lastErr = fmt.Errorf("rate limited")
+			retryDelay = 2 * time.Second // Wait longer for rate limit
+			continue
+		}
+
+		if resp.StatusCode != 200 {
+			io.Copy(io.Discard, resp.Body)
+			resp.Body.Close()
+			return TidalDownloadInfo{}, fmt.Errorf("HTTP %d", resp.StatusCode)
+		}
+
+		body, err := io.ReadAll(resp.Body)
+		resp.Body.Close()
+		if err != nil {
+			lastErr = err
+			continue
+		}
+
+		// Try V2 response format (with manifest)
+		var v2Response TidalAPIResponseV2
+		if err := json.Unmarshal(body, &v2Response); err == nil && v2Response.Data.Manifest != "" {
+			if v2Response.Data.AssetPresentation == "PREVIEW" {
+				return TidalDownloadInfo{}, fmt.Errorf("returned PREVIEW instead of FULL")
+			}
+
+			return TidalDownloadInfo{
+				URL:        "MANIFEST:" + v2Response.Data.Manifest,
+				BitDepth:   v2Response.Data.BitDepth,
+				SampleRate: v2Response.Data.SampleRate,
+			}, nil
+		}
+
+		// Try V1 response format
+		var v1Responses []struct {
+			OriginalTrackURL string `json:"OriginalTrackUrl"`
+		}
+		if err := json.Unmarshal(body, &v1Responses); err == nil {
+			for _, item := range v1Responses {
+				if item.OriginalTrackURL != "" {
+					return TidalDownloadInfo{
+						URL:        item.OriginalTrackURL,
+						BitDepth:   16,
+						SampleRate: 44100,
+					}, nil
+				}
+			}
+		}
+
+		return TidalDownloadInfo{}, fmt.Errorf("no download URL or manifest in response")
+	}
+
+	if lastErr != nil {
+		return TidalDownloadInfo{}, lastErr
+	}
+	return TidalDownloadInfo{}, fmt.Errorf("all retries failed")
+}
+
 func getDownloadURLParallel(apis []string, trackID int64, quality string) (string, TidalDownloadInfo, error) {
 	if len(apis) == 0 {
 		return "", TidalDownloadInfo{}, fmt.Errorf("no APIs available")
 	}
 
-	GoLog("[Tidal] Requesting download URL from %d APIs in parallel...\n", len(apis))
+	GoLog("[Tidal] Requesting download URL from %d APIs in parallel (with retry)...\n", len(apis))
 
 	resultChan := make(chan tidalAPIResult, len(apis))
 	startTime := time.Now()
@@ -595,69 +706,13 @@ func getDownloadURLParallel(apis []string, trackID int64, quality string) (strin
 	for _, apiURL := range apis {
 		go func(api string) {
 			reqStart := time.Now()
-
-			client := NewHTTPClientWithTimeout(15 * time.Second)
-
-			reqURL := fmt.Sprintf("%s/track/?id=%d&quality=%s", api, trackID, quality)
-
-			req, err := http.NewRequest("GET", reqURL, nil)
-			if err != nil {
-				resultChan <- tidalAPIResult{apiURL: api, err: err, duration: time.Since(reqStart)}
-				return
+			info, err := fetchTidalURLWithRetry(api, trackID, quality, tidalAPITimeoutMobile)
+			resultChan <- tidalAPIResult{
+				apiURL:   api,
+				info:     info,
+				err:      err,
+				duration: time.Since(reqStart),
 			}
-
-			resp, err := client.Do(req)
-			if err != nil {
-				resultChan <- tidalAPIResult{apiURL: api, err: err, duration: time.Since(reqStart)}
-				return
-			}
-			defer resp.Body.Close()
-
-			if resp.StatusCode != 200 {
-				resultChan <- tidalAPIResult{apiURL: api, err: fmt.Errorf("HTTP %d", resp.StatusCode), duration: time.Since(reqStart)}
-				return
-			}
-
-			body, err := io.ReadAll(resp.Body)
-			if err != nil {
-				resultChan <- tidalAPIResult{apiURL: api, err: err, duration: time.Since(reqStart)}
-				return
-			}
-
-			var v2Response TidalAPIResponseV2
-			if err := json.Unmarshal(body, &v2Response); err == nil && v2Response.Data.Manifest != "" {
-				if v2Response.Data.AssetPresentation == "PREVIEW" {
-					resultChan <- tidalAPIResult{apiURL: api, err: fmt.Errorf("returned PREVIEW instead of FULL"), duration: time.Since(reqStart)}
-					return
-				}
-
-				info := TidalDownloadInfo{
-					URL:        "MANIFEST:" + v2Response.Data.Manifest,
-					BitDepth:   v2Response.Data.BitDepth,
-					SampleRate: v2Response.Data.SampleRate,
-				}
-				resultChan <- tidalAPIResult{apiURL: api, info: info, err: nil, duration: time.Since(reqStart)}
-				return
-			}
-
-			var v1Responses []struct {
-				OriginalTrackURL string `json:"OriginalTrackUrl"`
-			}
-			if err := json.Unmarshal(body, &v1Responses); err == nil {
-				for _, item := range v1Responses {
-					if item.OriginalTrackURL != "" {
-						info := TidalDownloadInfo{
-							URL:        item.OriginalTrackURL,
-							BitDepth:   16,
-							SampleRate: 44100,
-						}
-						resultChan <- tidalAPIResult{apiURL: api, info: info, err: nil, duration: time.Since(reqStart)}
-						return
-					}
-				}
-			}
-
-			resultChan <- tidalAPIResult{apiURL: api, err: fmt.Errorf("no download URL or manifest in response"), duration: time.Since(reqStart)}
 		}(apiURL)
 	}
 
@@ -784,6 +839,10 @@ func parseManifest(manifestB64 string) (directURL string, initURL string, mediaU
 		GoLog("[Tidal] Total segments from regex: %d\n", segmentCount)
 	}
 
+	if segmentCount == 0 {
+		return "", "", nil, fmt.Errorf("no segments found in manifest")
+	}
+
 	for i := 1; i <= segmentCount; i++ {
 		mediaURL := strings.ReplaceAll(mediaTemplate, "$Number$", fmt.Sprintf("%d", i))
 		mediaURLs = append(mediaURLs, mediaURL)
@@ -1404,49 +1463,83 @@ func downloadFromTidal(req DownloadRequest) (TidalDownloadResult, error) {
 
 	if track == nil && req.SpotifyID != "" {
 		GoLog("[Tidal] ISRC search failed, trying SongLink...\n")
-		var tidalURL string
-		var slErr error
+
+		var trackID int64
+		var gotTidalID bool
 
 		if strings.HasPrefix(req.SpotifyID, "deezer:") {
 			deezerID := strings.TrimPrefix(req.SpotifyID, "deezer:")
 			GoLog("[Tidal] Using Deezer ID for SongLink lookup: %s\n", deezerID)
 			songlink := NewSongLinkClient()
-			tidalURL, slErr = songlink.GetTidalURLFromDeezer(deezerID)
+			availability, slErr := songlink.CheckAvailabilityFromDeezer(deezerID)
+			if slErr == nil && availability != nil && availability.TidalID != "" {
+				if _, parseErr := fmt.Sscanf(availability.TidalID, "%d", &trackID); parseErr == nil && trackID > 0 {
+					GoLog("[Tidal] Got Tidal ID %d directly from SongLink\n", trackID)
+					gotTidalID = true
+				}
+			}
+			// Fallback to URL parsing if TidalID not in struct
+			if !gotTidalID && availability != nil && availability.TidalURL != "" {
+				var idErr error
+				trackID, idErr = downloader.GetTrackIDFromURL(availability.TidalURL)
+				if idErr == nil && trackID > 0 {
+					GoLog("[Tidal] Got Tidal ID %d from URL parsing\n", trackID)
+					gotTidalID = true
+				}
+			}
 		} else {
-			tidalURL, slErr = downloader.GetTidalURLFromSpotify(req.SpotifyID)
+			songlink := NewSongLinkClient()
+			availability, slErr := songlink.CheckTrackAvailability(req.SpotifyID, req.ISRC)
+			if slErr == nil && availability != nil && availability.TidalID != "" {
+				if _, parseErr := fmt.Sscanf(availability.TidalID, "%d", &trackID); parseErr == nil && trackID > 0 {
+					GoLog("[Tidal] Got Tidal ID %d directly from SongLink\n", trackID)
+					gotTidalID = true
+				}
+			}
+			// Fallback to URL parsing if TidalID not in struct
+			if !gotTidalID && availability != nil && availability.TidalURL != "" {
+				var idErr error
+				trackID, idErr = downloader.GetTrackIDFromURL(availability.TidalURL)
+				if idErr == nil && trackID > 0 {
+					GoLog("[Tidal] Got Tidal ID %d from URL parsing\n", trackID)
+					gotTidalID = true
+				}
+			}
 		}
 
-		if slErr == nil && tidalURL != "" {
-			trackID, idErr := downloader.GetTrackIDFromURL(tidalURL)
-			if idErr == nil {
-				track, err = downloader.GetTrackInfoByID(trackID)
-				if track != nil {
-					tidalArtist := track.Artist.Name
-					if len(track.Artists) > 0 {
-						var artistNames []string
-						for _, a := range track.Artists {
-							artistNames = append(artistNames, a.Name)
-						}
-						tidalArtist = strings.Join(artistNames, ", ")
+		if gotTidalID && trackID > 0 {
+			track, err = downloader.GetTrackInfoByID(trackID)
+			if track != nil {
+				tidalArtist := track.Artist.Name
+				if len(track.Artists) > 0 {
+					var artistNames []string
+					for _, a := range track.Artists {
+						artistNames = append(artistNames, a.Name)
 					}
+					tidalArtist = strings.Join(artistNames, ", ")
+				}
 
-					if !artistsMatch(req.ArtistName, tidalArtist) {
-						GoLog("[Tidal] Artist mismatch from SongLink: expected '%s', got '%s'. Rejecting.\n",
-							req.ArtistName, tidalArtist)
-						track = nil
-					}
+				if !artistsMatch(req.ArtistName, tidalArtist) {
+					GoLog("[Tidal] Artist mismatch from SongLink: expected '%s', got '%s'. Rejecting.\n",
+						req.ArtistName, tidalArtist)
+					track = nil
+				}
 
-					if track != nil && expectedDurationSec > 0 {
-						durationDiff := track.Duration - expectedDurationSec
-						if durationDiff < 0 {
-							durationDiff = -durationDiff
-						}
-						if durationDiff > 3 {
-							GoLog("[Tidal] Duration mismatch from SongLink: expected %ds, got %ds. Rejecting.\n",
-								expectedDurationSec, track.Duration)
-							track = nil // Reject this match
-						}
+				if track != nil && expectedDurationSec > 0 {
+					durationDiff := track.Duration - expectedDurationSec
+					if durationDiff < 0 {
+						durationDiff = -durationDiff
 					}
+					if durationDiff > 3 {
+						GoLog("[Tidal] Duration mismatch from SongLink: expected %ds, got %ds. Rejecting.\n",
+							expectedDurationSec, track.Duration)
+						track = nil // Reject this match
+					}
+				}
+
+				// Cache for future use
+				if track != nil && req.ISRC != "" {
+					GetTrackIDCache().SetTidal(req.ISRC, track.ID)
 				}
 			}
 		}