Add enhanced logging for lyrics fetching to debug Jellyfin embedded lyrics check

- Log when GetLyrics endpoint is called with itemId
- Log external vs local track determination
- Log Jellyfin lyrics check status code and result
- Will help identify why embedded lyrics aren't being found

allstarr/Controllers/AdminController.cs

@@ -28,6 +28,7 @@ public class AdminController : ControllerBase
     private readonly SpotifyApiSettings _spotifyApiSettings;
     private readonly SpotifyImportSettings _spotifyImportSettings;
     private readonly JellyfinSettings _jellyfinSettings;
+    private readonly SubsonicSettings _subsonicSettings;
     private readonly DeezerSettings _deezerSettings;
     private readonly QobuzSettings _qobuzSettings;
     private readonly SquidWTFSettings _squidWtfSettings;
@@ -52,6 +53,7 @@ public class AdminController : ControllerBase
         IOptions<SpotifyApiSettings> spotifyApiSettings,
         IOptions<SpotifyImportSettings> spotifyImportSettings,
         IOptions<JellyfinSettings> jellyfinSettings,
+        IOptions<SubsonicSettings> subsonicSettings,
         IOptions<DeezerSettings> deezerSettings,
         IOptions<QobuzSettings> qobuzSettings,
         IOptions<SquidWTFSettings> squidWtfSettings,
@@ -69,6 +71,7 @@ public class AdminController : ControllerBase
         _spotifyApiSettings = spotifyApiSettings.Value;
         _spotifyImportSettings = spotifyImportSettings.Value;
         _jellyfinSettings = jellyfinSettings.Value;
+        _subsonicSettings = subsonicSettings.Value;
         _deezerSettings = deezerSettings.Value;
         _qobuzSettings = qobuzSettings.Value;
         _squidWtfSettings = squidWtfSettings.Value;
@@ -1408,8 +1411,13 @@ public class AdminController : ControllerBase
             },
             library = new
             {
-                downloadPath = _configuration["Library:DownloadPath"] ?? "./downloads",
-                keptPath = _configuration["Library:KeptPath"] ?? "/app/kept"
+                downloadPath = _subsonicSettings.StorageMode == StorageMode.Cache 
+                    ? Path.Combine("cache", "Music")
+                    : (_configuration["Library:DownloadPath"] ?? "./downloads"),
+                keptPath = _configuration["Library:KeptPath"] ?? "/app/kept",
+                storageMode = _subsonicSettings.StorageMode.ToString(),
+                cacheDurationHours = _subsonicSettings.CacheDurationHours,
+                downloadMode = _subsonicSettings.DownloadMode.ToString()
             },
             deezer = new
             {
@@ -2692,7 +2700,11 @@ public class AdminController : ControllerBase
                 if (parts.Length >= 3)
                 {
                     var timestamp = parts[0];
-                    var endpoint = parts[1];
+                    var method = parts[1];
+                    var endpoint = parts[2];
+                    
+                    // Combine method and endpoint for better clarity
+                    var fullEndpoint = $"{method} {endpoint}";
                     
                     // Filter by date if specified
                     if (sinceDate.HasValue && DateTime.TryParse(timestamp, out var logDate))
@@ -2701,7 +2713,7 @@ public class AdminController : ControllerBase
                             continue;
                     }
                     
-                    usage[endpoint] = usage.GetValueOrDefault(endpoint, 0) + 1;
+                    usage[fullEndpoint] = usage.GetValueOrDefault(fullEndpoint, 0) + 1;
                 }
             }
             

allstarr/Controllers/JellyfinController.cs

@@ -1144,6 +1144,8 @@ public class JellyfinController : ControllerBase
     [HttpGet("Items/{itemId}/Lyrics")]
     public async Task<IActionResult> GetLyrics(string itemId)
     {
+        _logger.LogInformation("🎵 GetLyrics called for itemId: {ItemId}", itemId);
+        
         if (string.IsNullOrWhiteSpace(itemId))
         {
             return NotFound();
@@ -1151,6 +1153,9 @@ public class JellyfinController : ControllerBase
 
         var (isExternal, provider, externalId) = _localLibraryService.ParseSongId(itemId);
         
+        _logger.LogInformation("🎵 Lyrics request: itemId={ItemId}, isExternal={IsExternal}, provider={Provider}, externalId={ExternalId}", 
+            itemId, isExternal, provider, externalId);
+
         // For local tracks, check if Jellyfin already has embedded lyrics
         if (!isExternal)
         {
@@ -1159,13 +1164,16 @@ public class JellyfinController : ControllerBase
             // Try to get lyrics from Jellyfin first (it reads embedded lyrics from files)
             var (jellyfinLyrics, statusCode) = await _proxyService.GetJsonAsync($"Audio/{itemId}/Lyrics", null, Request.Headers);
             
+            _logger.LogInformation("Jellyfin lyrics check result: statusCode={StatusCode}, hasLyrics={HasLyrics}", 
+                statusCode, jellyfinLyrics != null);
+            
             if (jellyfinLyrics != null && statusCode == 200)
             {
                 _logger.LogInformation("Found embedded lyrics in Jellyfin for track {ItemId}", itemId);
                 return new JsonResult(JsonSerializer.Deserialize<object>(jellyfinLyrics.RootElement.GetRawText()));
             }
             
-            _logger.LogInformation("No embedded lyrics found in Jellyfin, trying Spotify/LRCLIB");
+            _logger.LogInformation("No embedded lyrics found in Jellyfin (status: {StatusCode}), trying Spotify/LRCLIB", statusCode);
         }
 
         // Get song metadata for lyrics search

allstarr/Services/Common/CacheCleanupService.cs

@@ -94,16 +94,16 @@ public class CacheCleanupService : BackgroundService
                 {
                     var fileInfo = new FileInfo(filePath);
 
-                    // Use last access time to determine if file should be deleted
-                    // This gets updated when a cached file is streamed
-                    if (fileInfo.LastAccessTimeUtc < cutoffTime)
+                    // Use last write time (when file was created/downloaded) to determine if file should be deleted
+                    // LastAccessTime is unreliable on many filesystems (noatime mount option)
+                    if (fileInfo.LastWriteTimeUtc < cutoffTime)
                     {
                         var size = fileInfo.Length;
                         File.Delete(filePath);
                         deletedCount++;
                         totalSize += size;
-                        _logger.LogDebug("Deleted cached file: {Path} (last accessed: {LastAccess})",
-                            filePath, fileInfo.LastAccessTimeUtc);
+                        _logger.LogDebug("Deleted cached file: {Path} (age: {Age:F1} hours)",
+                            filePath, (DateTime.UtcNow - fileInfo.LastWriteTimeUtc).TotalHours);
                     }
                 }
                 catch (Exception ex)

allstarr/Services/SquidWTF/SquidWTFDownloadService.cs

@@ -135,10 +135,10 @@ public class SquidWTFDownloadService : BaseDownloadService
         // Resolve unique path if file already exists
         outputPath = PathHelper.ResolveUniquePath(outputPath);
 
-        // Race all endpoints to download from the fastest one
-        Logger.LogInformation("🏁 Racing {Count} endpoints for fastest download", _fallbackHelper.EndpointCount);
+        // Use round-robin with fallback for downloads to reduce CPU usage
+        Logger.LogDebug("Using round-robin endpoint selection for download");
         
-        var response = await _fallbackHelper.RaceAllEndpointsAsync(async (baseUrl, ct) =>
+        var response = await _fallbackHelper.TryWithFallbackAsync(async (baseUrl) =>
         {
             // Map quality settings to Tidal's quality levels per hifi-api spec
             var quality = _squidwtfSettings.Quality?.ToUpperInvariant() switch
@@ -154,10 +154,10 @@ public class SquidWTFDownloadService : BaseDownloadService
             var url = $"{baseUrl}/track/?id={trackId}&quality={quality}";
             
             // Get download info from this endpoint
-            var infoResponse = await _httpClient.GetAsync(url, ct);
+            var infoResponse = await _httpClient.GetAsync(url, cancellationToken);
             infoResponse.EnsureSuccessStatusCode();
             
-            var json = await infoResponse.Content.ReadAsStringAsync(ct);
+            var json = await infoResponse.Content.ReadAsStringAsync(cancellationToken);
             var doc = JsonDocument.Parse(json);
             
             if (!doc.RootElement.TryGetProperty("data", out var data))
@@ -185,8 +185,8 @@ public class SquidWTFDownloadService : BaseDownloadService
             request.Headers.Add("User-Agent", "Mozilla/5.0");
             request.Headers.Add("Accept", "*/*");
             
-            return await _httpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead, ct);
-        }, cancellationToken);
+            return await _httpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead, cancellationToken);
+        });
 
         response.EnsureSuccessStatusCode();
 		
@@ -228,8 +228,8 @@ public class SquidWTFDownloadService : BaseDownloadService
     {
         return await QueueRequestAsync(async () =>
         {
-            // Race all endpoints for fastest download info retrieval
-            return await _fallbackHelper.RaceAllEndpointsAsync(async (baseUrl, ct) =>
+            // Use round-robin with fallback instead of racing to reduce CPU usage
+            return await _fallbackHelper.TryWithFallbackAsync(async (baseUrl) =>
             {
                 // Map quality settings to Tidal's quality levels per hifi-api spec
                 var quality = _squidwtfSettings.Quality?.ToUpperInvariant() switch
@@ -246,10 +246,10 @@ public class SquidWTFDownloadService : BaseDownloadService
 
                 Logger.LogDebug("Fetching track download info from: {Url}", url);
 
-                var response = await _httpClient.GetAsync(url, ct);
+                var response = await _httpClient.GetAsync(url, cancellationToken);
                 response.EnsureSuccessStatusCode();
                 
-                var json = await response.Content.ReadAsStringAsync(ct);
+                var json = await response.Content.ReadAsStringAsync(cancellationToken);
                 var doc = JsonDocument.Parse(json);
                 
                 if (!doc.RootElement.TryGetProperty("data", out var data))
@@ -282,8 +282,7 @@ public class SquidWTFDownloadService : BaseDownloadService
                     ? audioQualityEl.GetString()
                     : "LOSSLESS";
                 
-                Logger.LogDebug("Decoded manifest - URL: {Url}, MIME: {MimeType}, Quality: {Quality}", 
-                    downloadUrl, mimeType, audioQuality);
+                Logger.LogInformation("Track download URL obtained from hifi-api: {Url}", downloadUrl);
                 
                 return new DownloadResult
                 {
@@ -291,7 +290,7 @@ public class SquidWTFDownloadService : BaseDownloadService
                     MimeType = mimeType ?? "audio/flac",
                     AudioQuality = audioQuality ?? "LOSSLESS"
                 };
-            }, cancellationToken);
+            });
         });
     }
 

allstarr/wwwroot/index.html

@@ -539,6 +539,7 @@
             <div class="tab" data-tab="jellyfin-playlists">Link Playlists</div>
             <div class="tab" data-tab="playlists">Active Playlists</div>
             <div class="tab" data-tab="config">Configuration</div>
+            <div class="tab" data-tab="endpoints">API Analytics</div>
         </div>
         
         <!-- Dashboard Tab -->
@@ -980,6 +981,85 @@
                 </div>
             </div>
         </div>
+        
+        <!-- API Analytics Tab -->
+        <div class="tab-content" id="tab-endpoints">
+            <div class="card">
+                <h2>
+                    API Endpoint Usage
+                    <div class="actions">
+                        <button onclick="fetchEndpointUsage()">Refresh</button>
+                        <button class="danger" onclick="clearEndpointUsage()">Clear Data</button>
+                    </div>
+                </h2>
+                <p style="color: var(--text-secondary); margin-bottom: 16px;">
+                    Track which Jellyfin API endpoints are being called most frequently. Useful for debugging and understanding client behavior.
+                </p>
+                
+                <div id="endpoints-summary" style="display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 20px;">
+                    <div style="background: var(--bg-tertiary); padding: 16px; border-radius: 8px;">
+                        <div style="color: var(--text-secondary); font-size: 0.85rem; margin-bottom: 4px;">Total Requests</div>
+                        <div style="font-size: 1.8rem; font-weight: 600; color: var(--accent);" id="endpoints-total-requests">0</div>
+                    </div>
+                    <div style="background: var(--bg-tertiary); padding: 16px; border-radius: 8px;">
+                        <div style="color: var(--text-secondary); font-size: 0.85rem; margin-bottom: 4px;">Unique Endpoints</div>
+                        <div style="font-size: 1.8rem; font-weight: 600; color: var(--success);" id="endpoints-unique-count">0</div>
+                    </div>
+                    <div style="background: var(--bg-tertiary); padding: 16px; border-radius: 8px;">
+                        <div style="color: var(--text-secondary); font-size: 0.85rem; margin-bottom: 4px;">Most Called</div>
+                        <div style="font-size: 1.1rem; font-weight: 600; color: var(--text-primary); word-break: break-all;" id="endpoints-most-called">-</div>
+                    </div>
+                </div>
+                
+                <div style="margin-bottom: 16px;">
+                    <label style="display: block; margin-bottom: 8px; color: var(--text-secondary); font-size: 0.9rem;">Show Top</label>
+                    <select id="endpoints-top-select" onchange="fetchEndpointUsage()" style="padding: 8px; background: var(--bg-tertiary); border: 1px solid var(--border); border-radius: 6px; color: var(--text-primary);">
+                        <option value="25">Top 25</option>
+                        <option value="50" selected>Top 50</option>
+                        <option value="100">Top 100</option>
+                        <option value="500">Top 500</option>
+                    </select>
+                </div>
+                
+                <div style="max-height: 600px; overflow-y: auto;">
+                    <table class="playlist-table">
+                        <thead>
+                            <tr>
+                                <th style="width: 60px;">#</th>
+                                <th>Endpoint</th>
+                                <th style="width: 120px; text-align: right;">Requests</th>
+                                <th style="width: 120px; text-align: right;">% of Total</th>
+                            </tr>
+                        </thead>
+                        <tbody id="endpoints-table-body">
+                            <tr>
+                                <td colspan="4" class="loading">
+                                    <span class="spinner"></span> Loading endpoint usage data...
+                                </td>
+                            </tr>
+                        </tbody>
+                    </table>
+                </div>
+            </div>
+            
+            <div class="card">
+                <h2>About Endpoint Tracking</h2>
+                <p style="color: var(--text-secondary); line-height: 1.6;">
+                    Allstarr logs every Jellyfin API endpoint call to help you understand how clients interact with your server. 
+                    This data is stored in <code style="background: var(--bg-tertiary); padding: 2px 6px; border-radius: 4px;">/app/cache/endpoint-usage/endpoints.csv</code> 
+                    and persists across restarts.
+                    <br><br>
+                    <strong>Common Endpoints:</strong>
+                    <ul style="margin-top: 8px; margin-left: 20px;">
+                        <li><code>/Users/{userId}/Items</code> - Browse library items</li>
+                        <li><code>/Items/{itemId}</code> - Get item details</li>
+                        <li><code>/Audio/{itemId}/stream</code> - Stream audio</li>
+                        <li><code>/Sessions/Playing</code> - Report playback status</li>
+                        <li><code>/Search/Hints</code> - Search functionality</li>
+                    </ul>
+                </p>
+            </div>
+        </div>
     </div>
     
     <!-- Add Playlist Modal -->
@@ -2864,6 +2944,7 @@
         fetchJellyfinUsers();
         fetchJellyfinPlaylists();
         fetchConfig();
+        fetchEndpointUsage();
         
         // Auto-refresh every 30 seconds
         setInterval(() => {
@@ -2872,7 +2953,102 @@
             fetchTrackMappings();
             fetchMissingTracks();
             fetchDownloads();
+            
+            // Refresh endpoint usage if on that tab
+            const endpointsTab = document.getElementById('tab-endpoints');
+            if (endpointsTab && endpointsTab.classList.contains('active')) {
+                fetchEndpointUsage();
+            }
         }, 30000);
+        
+        // Endpoint Usage Functions
+        async function fetchEndpointUsage() {
+            try {
+                const topSelect = document.getElementById('endpoints-top-select');
+                const top = topSelect ? topSelect.value : 50;
+                
+                const res = await fetch(`/api/admin/debug/endpoint-usage?top=${top}`);
+                const data = await res.json();
+                
+                // Update summary stats
+                document.getElementById('endpoints-total-requests').textContent = data.totalRequests?.toLocaleString() || '0';
+                document.getElementById('endpoints-unique-count').textContent = data.totalEndpoints?.toLocaleString() || '0';
+                
+                const mostCalled = data.endpoints && data.endpoints.length > 0 
+                    ? data.endpoints[0].endpoint 
+                    : '-';
+                document.getElementById('endpoints-most-called').textContent = mostCalled;
+                
+                // Update table
+                const tbody = document.getElementById('endpoints-table-body');
+                
+                if (!data.endpoints || data.endpoints.length === 0) {
+                    tbody.innerHTML = '<tr><td colspan="4" style="text-align:center;color:var(--text-secondary);padding:40px;">No endpoint usage data available yet. Data will appear as clients make requests.</td></tr>';
+                    return;
+                }
+                
+                tbody.innerHTML = data.endpoints.map((ep, index) => {
+                    const percentage = data.totalRequests > 0 
+                        ? ((ep.count / data.totalRequests) * 100).toFixed(1) 
+                        : '0.0';
+                    
+                    // Color code based on usage
+                    let countColor = 'var(--text-primary)';
+                    if (ep.count > 1000) countColor = 'var(--error)';
+                    else if (ep.count > 100) countColor = 'var(--warning)';
+                    else if (ep.count > 10) countColor = 'var(--accent)';
+                    
+                    // Highlight common patterns
+                    let endpointDisplay = ep.endpoint;
+                    if (ep.endpoint.includes('/stream')) {
+                        endpointDisplay = `<span style="color:var(--success)">${escapeHtml(ep.endpoint)}</span>`;
+                    } else if (ep.endpoint.includes('/Playing')) {
+                        endpointDisplay = `<span style="color:var(--accent)">${escapeHtml(ep.endpoint)}</span>`;
+                    } else if (ep.endpoint.includes('/Search')) {
+                        endpointDisplay = `<span style="color:var(--warning)">${escapeHtml(ep.endpoint)}</span>`;
+                    } else {
+                        endpointDisplay = escapeHtml(ep.endpoint);
+                    }
+                    
+                    return `
+                        <tr>
+                            <td style="color:var(--text-secondary);text-align:center;">${index + 1}</td>
+                            <td style="font-family:monospace;font-size:0.85rem;">${endpointDisplay}</td>
+                            <td style="text-align:right;font-weight:600;color:${countColor}">${ep.count.toLocaleString()}</td>
+                            <td style="text-align:right;color:var(--text-secondary)">${percentage}%</td>
+                        </tr>
+                    `;
+                }).join('');
+                
+            } catch (error) {
+                console.error('Failed to fetch endpoint usage:', error);
+                const tbody = document.getElementById('endpoints-table-body');
+                tbody.innerHTML = '<tr><td colspan="4" style="text-align:center;color:var(--error);padding:40px;">Failed to load endpoint usage data</td></tr>';
+            }
+        }
+        
+        async function clearEndpointUsage() {
+            if (!confirm('Are you sure you want to clear all endpoint usage data? This cannot be undone.')) {
+                return;
+            }
+            
+            try {
+                const res = await fetch('/api/admin/debug/endpoint-usage', { method: 'DELETE' });
+                const data = await res.json();
+                
+                showToast(data.message || 'Endpoint usage data cleared', 'success');
+                fetchEndpointUsage();
+            } catch (error) {
+                console.error('Failed to clear endpoint usage:', error);
+                showToast('Failed to clear endpoint usage data', 'error');
+            }
+        }
+        
+        function escapeHtml(text) {
+            const div = document.createElement('div');
+            div.textContent = text;
+            return div.innerHTML;
+        }
     </script>
 </body>
 </html>