v1.2.1: MusicBrainz genre enrichment + cleanup

## Features
- Implement automatic MusicBrainz genre enrichment for all external sources
  - Deezer: Enriches when genre missing
  - Qobuz: Enriches when genre missing
  - SquidWTF/Tidal: Always enriches (Tidal doesn't provide genres)
- Use ISRC codes for exact matching, fallback to title/artist search
- Cache results in Redis (30 days) + file cache for performance
- Respect MusicBrainz rate limits (1 req/sec)

## Cleanup
- Remove unused Spotify API ClientId and ClientSecret settings
- Simplify Spotify API configuration

This ensures all external tracks have genre metadata for better
organization and filtering in music clients.

.env.example

@@ -143,13 +143,6 @@ SPOTIFY_IMPORT_PLAYLISTS=[]
 # Enable direct Spotify API access (default: false)
 SPOTIFY_API_ENABLED=false
 
-# Spotify Client ID from https://developer.spotify.com/dashboard
-# Create an app in the Spotify Developer Dashboard to get this
-SPOTIFY_API_CLIENT_ID=
-
-# Spotify Client Secret (optional - only needed for certain OAuth flows)
-SPOTIFY_API_CLIENT_SECRET=
-
 # Spotify session cookie (sp_dc) - REQUIRED for editorial playlists
 # Editorial playlists (Release Radar, Discover Weekly, etc.) require authentication
 # via session cookie because they're not accessible through the official API.

allstarr/Models/Settings/SpotifyApiSettings.cs

@@ -18,18 +18,6 @@ public class SpotifyApiSettings
     /// </summary>
     public bool Enabled { get; set; }
     
-    /// <summary>
-    /// Spotify Client ID from https://developer.spotify.com/dashboard
-    /// Used for OAuth token refresh and API access.
-    /// </summary>
-    public string ClientId { get; set; } = string.Empty;
-    
-    /// <summary>
-    /// Spotify Client Secret from https://developer.spotify.com/dashboard
-    /// Optional - only needed for certain OAuth flows.
-    /// </summary>
-    public string ClientSecret { get; set; } = string.Empty;
-    
     /// <summary>
     /// Spotify session cookie (sp_dc).
     /// Required for accessing editorial/personalized playlists like Release Radar and Discover Weekly.

allstarr/Program.cs

@@ -473,7 +473,8 @@ else if (musicService == MusicService.SquidWTF)
             sp.GetRequiredService<Microsoft.Extensions.Options.IOptions<SquidWTFSettings>>(),
             sp.GetRequiredService<ILogger<SquidWTFMetadataService>>(),
             sp.GetRequiredService<RedisCacheService>(),
-            squidWtfApiUrls));
+            squidWtfApiUrls,
+            sp.GetRequiredService<GenreEnrichmentService>()));
     builder.Services.AddSingleton<IDownloadService>(sp =>
         new SquidWTFDownloadService(
             sp.GetRequiredService<IHttpClientFactory>(),
@@ -537,18 +538,6 @@ builder.Services.Configure<allstarr.Models.Settings.SpotifyApiSettings>(options
         options.Enabled = enabled.Equals("true", StringComparison.OrdinalIgnoreCase);
     }
     
-    var clientId = builder.Configuration.GetValue<string>("SpotifyApi:ClientId");
-    if (!string.IsNullOrEmpty(clientId))
-    {
-        options.ClientId = clientId;
-    }
-    
-    var clientSecret = builder.Configuration.GetValue<string>("SpotifyApi:ClientSecret");
-    if (!string.IsNullOrEmpty(clientSecret))
-    {
-        options.ClientSecret = clientSecret;
-    }
-    
     var sessionCookie = builder.Configuration.GetValue<string>("SpotifyApi:SessionCookie");
     if (!string.IsNullOrEmpty(sessionCookie))
     {
@@ -576,7 +565,6 @@ builder.Services.Configure<allstarr.Models.Settings.SpotifyApiSettings>(options
     // Log configuration (mask sensitive values)
     Console.WriteLine($"SpotifyApi Configuration:");
     Console.WriteLine($"  Enabled: {options.Enabled}");
-    Console.WriteLine($"  ClientId: {(string.IsNullOrEmpty(options.ClientId) ? "(not set)" : options.ClientId[..8] + "...")}");
     Console.WriteLine($"  SessionCookie: {(string.IsNullOrEmpty(options.SessionCookie) ? "(not set)" : "***" + options.SessionCookie[^8..])}");
     Console.WriteLine($"  SessionCookieSetDate: {options.SessionCookieSetDate ?? "(not set)"}");
     Console.WriteLine($"  CacheDurationMinutes: {options.CacheDurationMinutes}");

allstarr/Services/Deezer/DeezerMetadataService.cs

@@ -3,6 +3,7 @@ using allstarr.Models.Settings;
 using allstarr.Models.Download;
 using allstarr.Models.Search;
 using allstarr.Models.Subsonic;
+using allstarr.Services.Common;
 using System.Text.Json;
 using Microsoft.Extensions.Options;
 
@@ -15,12 +16,17 @@ public class DeezerMetadataService : IMusicMetadataService
 {
     private readonly HttpClient _httpClient;
     private readonly SubsonicSettings _settings;
+    private readonly GenreEnrichmentService _genreEnrichment;
     private const string BaseUrl = "https://api.deezer.com";
 
-    public DeezerMetadataService(IHttpClientFactory httpClientFactory, IOptions<SubsonicSettings> settings)
+    public DeezerMetadataService(
+        IHttpClientFactory httpClientFactory, 
+        IOptions<SubsonicSettings> settings,
+        GenreEnrichmentService genreEnrichment)
     {
         _httpClient = httpClientFactory.CreateClient();
         _settings = settings.Value;
+        _genreEnrichment = genreEnrichment;
     }
 
     public async Task<List<Song>> SearchSongsAsync(string query, int limit = 20)
@@ -203,6 +209,12 @@ public class DeezerMetadataService : IMusicMetadataService
             }
         }
         
+        // Enrich with MusicBrainz genres if missing
+        if (string.IsNullOrEmpty(song.Genre))
+        {
+            await _genreEnrichment.EnrichSongGenreAsync(song);
+        }
+        
         return song;
     }
 

allstarr/Services/Lyrics/LyricsStartupValidator.cs

@@ -167,16 +167,14 @@ public class LyricsStartupValidator : BaseStartupValidator
     {
         try
         {
-            if (string.IsNullOrEmpty(_spotifySettings.ClientId))
+            if (!_spotifySettings.Enabled)
             {
-                WriteStatus("Spotify API", "NOT CONFIGURED", ConsoleColor.Yellow);
-                WriteDetail("Set SpotifyApi__ClientId to enable");
+                WriteStatus("Spotify API", "DISABLED", ConsoleColor.Gray);
                 return true;
             }
 
             WriteStatus("Spotify API", "CONFIGURED", ConsoleColor.Green);
-            WriteDetail($"Client ID: {_spotifySettings.ClientId.Substring(0, Math.Min(8, _spotifySettings.ClientId.Length))}...");
-            WriteDetail("Note: Spotify API is used for track matching, not lyrics");
+            WriteDetail("Note: Spotify API is used for track matching and lyrics");
             return true;
         }
         catch (Exception ex)

allstarr/Services/Qobuz/QobuzMetadataService.cs

@@ -3,6 +3,7 @@ using allstarr.Models.Settings;
 using allstarr.Models.Download;
 using allstarr.Models.Search;
 using allstarr.Models.Subsonic;
+using allstarr.Services.Common;
 using System.Text.Json;
 using Microsoft.Extensions.Options;
 
@@ -18,6 +19,7 @@ public class QobuzMetadataService : IMusicMetadataService
     private readonly SubsonicSettings _settings;
     private readonly QobuzBundleService _bundleService;
     private readonly ILogger<QobuzMetadataService> _logger;
+    private readonly GenreEnrichmentService _genreEnrichment;
     private readonly string? _userAuthToken;
     private readonly string? _userId;
     
@@ -28,12 +30,14 @@ public class QobuzMetadataService : IMusicMetadataService
         IOptions<SubsonicSettings> settings,
         IOptions<QobuzSettings> qobuzSettings,
         QobuzBundleService bundleService,
-        ILogger<QobuzMetadataService> logger)
+        ILogger<QobuzMetadataService> logger,
+        GenreEnrichmentService genreEnrichment)
     {
         _httpClient = httpClientFactory.CreateClient();
         _settings = settings.Value;
         _bundleService = bundleService;
         _logger = logger;
+        _genreEnrichment = genreEnrichment;
         
         var qobuzConfig = qobuzSettings.Value;
         _userAuthToken = qobuzConfig.UserAuthToken;
@@ -177,7 +181,15 @@ public class QobuzMetadataService : IMusicMetadataService
             
             if (track.TryGetProperty("error", out _)) return null;
             
-            return ParseQobuzTrackFull(track);
+            var song = ParseQobuzTrackFull(track);
+            
+            // Enrich with MusicBrainz genres if missing
+            if (song != null && string.IsNullOrEmpty(song.Genre))
+            {
+                await _genreEnrichment.EnrichSongGenreAsync(song);
+            }
+            
+            return song;
         }
         catch (Exception ex)
         {

allstarr/Services/SquidWTF/SquidWTFMetadataService.cs

@@ -56,6 +56,7 @@ public class SquidWTFMetadataService : IMusicMetadataService
     private readonly ILogger<SquidWTFMetadataService> _logger;
     private readonly RedisCacheService _cache;
     private readonly RoundRobinFallbackHelper _fallbackHelper;
+    private readonly GenreEnrichmentService _genreEnrichment;
 
     public SquidWTFMetadataService(
         IHttpClientFactory httpClientFactory, 
@@ -63,13 +64,15 @@ public class SquidWTFMetadataService : IMusicMetadataService
         IOptions<SquidWTFSettings> squidwtfSettings,
         ILogger<SquidWTFMetadataService> logger,
         RedisCacheService cache,
-        List<string> apiUrls)
+        List<string> apiUrls,
+        GenreEnrichmentService genreEnrichment)
     {
         _httpClient = httpClientFactory.CreateClient();
         _settings = settings.Value;
         _logger = logger;
         _cache = cache;
         _fallbackHelper = new RoundRobinFallbackHelper(apiUrls, logger, "SquidWTF");
+        _genreEnrichment = genreEnrichment;
         
         // Set up default headers
         _httpClient.DefaultRequestHeaders.Add("User-Agent", 
@@ -286,6 +289,12 @@ public class SquidWTFMetadataService : IMusicMetadataService
 
 			var song = ParseTidalTrackFull(track);
 			
+			// Enrich with MusicBrainz genres if missing (SquidWTF/Tidal doesn't provide genres)
+			if (string.IsNullOrEmpty(song.Genre))
+			{
+				await _genreEnrichment.EnrichSongGenreAsync(song);
+			}
+			
 			// NOTE: Spotify ID conversion happens during download (in SquidWTFDownloadService)
 			// This avoids redundant conversions and ensures it's done in parallel with the download
 			

allstarr/appsettings.json

@@ -61,8 +61,6 @@
   },
   "SpotifyApi": {
     "Enabled": false,
-    "ClientId": "",
-    "ClientSecret": "",
     "SessionCookie": "",
     "CacheDurationMinutes": 60,
     "RateLimitDelayMs": 100,

docker-compose.yml

@@ -107,8 +107,6 @@ services:
       
       # ===== SPOTIFY DIRECT API (for lyrics, ISRC matching, track ordering) =====
       - SpotifyApi__Enabled=${SPOTIFY_API_ENABLED:-false}
-      - SpotifyApi__ClientId=${SPOTIFY_API_CLIENT_ID:-}
-      - SpotifyApi__ClientSecret=${SPOTIFY_API_CLIENT_SECRET:-}
       - SpotifyApi__SessionCookie=${SPOTIFY_API_SESSION_COOKIE:-}
       - SpotifyApi__SessionCookieSetDate=${SPOTIFY_API_SESSION_COOKIE_SET_DATE:-}
       - SpotifyApi__CacheDurationMinutes=${SPOTIFY_API_CACHE_DURATION_MINUTES:-60}