multiple artists big fix!

allstarr/Models/Domain/Song.cs

@@ -14,6 +14,11 @@ public class Song
     public string Title { get; set; } = string.Empty;
     public string Artist { get; set; } = string.Empty;
     public string? ArtistId { get; set; }
+    
+    /// <summary>
+    /// All artists for this track (main + featured). For display in Jellyfin clients.
+    /// </summary>
+    public List<string> Artists { get; set; } = new();
     public string Album { get; set; } = string.Empty;
     public string? AlbumId { get; set; }
     public int? Duration { get; set; } // In seconds

allstarr/Services/Jellyfin/JellyfinResponseBuilder.cs

@@ -186,7 +186,7 @@ public class JellyfinResponseBuilder
                 ["Type"] = "Audio",
                 ["Album"] = song.Album,
                 ["AlbumArtist"] = song.Artist,
-                ["Artists"] = new[] { song.Artist },
+                ["Artists"] = song.Artists.Count > 0 ? song.Artists.ToArray() : new[] { song.Artist },
                 ["RunTimeTicks"] = (song.Duration ?? 0) * TimeSpan.TicksPerSecond,
                 ["ImageTags"] = new Dictionary<string, string>
                 {
@@ -242,7 +242,7 @@ public class JellyfinResponseBuilder
             ["Album"] = song.Album,
             ["AlbumId"] = song.AlbumId ?? song.Id,
             ["AlbumArtist"] = song.AlbumArtist ?? song.Artist,
-            ["Artists"] = new[] { song.Artist },
+            ["Artists"] = song.Artists.Count > 0 ? song.Artists.ToArray() : new[] { song.Artist },
             ["ArtistItems"] = new[]
             {
                 new Dictionary<string, object?>

allstarr/Services/SquidWTF/SquidWTFMetadataService.cs

@@ -551,26 +551,36 @@ public class SquidWTFMetadataService : IMusicMetadataService
             ? volNum.GetInt32()
             : null;
         
-        // Get artist name - handle both single artist and artists array
+        // Get all artists - Tidal provides both "artist" (singular) and "artists" (plural array)
+        var allArtists = new List<string>();
         string artistName = "";
-        if (track.TryGetProperty("artist", out var artist))
+        string? artistId = null;
+        
+        // Prefer the "artists" array as it includes all collaborators
+        if (track.TryGetProperty("artists", out var artists) && artists.GetArrayLength() > 0)
+        {
+            foreach (var artistEl in artists.EnumerateArray())
+            {
+                var name = artistEl.GetProperty("name").GetString();
+                if (!string.IsNullOrEmpty(name))
+                {
+                    allArtists.Add(name);
+                }
+            }
+            
+            // First artist is the main artist
+            if (allArtists.Count > 0)
+            {
+                artistName = allArtists[0];
+                artistId = $"ext-squidwtf-artist-{artists[0].GetProperty("id").GetInt64()}";
+            }
+        }
+        // Fallback to singular "artist" field
+        else if (track.TryGetProperty("artist", out var artist))
         {
             artistName = artist.GetProperty("name").GetString() ?? "";
-        }
+            artistId = $"ext-squidwtf-artist-{artist.GetProperty("id").GetInt64()}";
-        else if (track.TryGetProperty("artists", out var artists) && artists.GetArrayLength() > 0)
+            allArtists.Add(artistName);
-        {
-            artistName = artists[0].GetProperty("name").GetString() ?? "";
-        }
-        
-        // Get artist ID
-        string? artistId = null;
-        if (track.TryGetProperty("artist", out var artistForId))
-        {
-            artistId = $"ext-squidwtf-artist-{artistForId.GetProperty("id").GetInt64()}";
-        }
-        else if (track.TryGetProperty("artists", out var artistsForId) && artistsForId.GetArrayLength() > 0)
-        {
-            artistId = $"ext-squidwtf-artist-{artistsForId[0].GetProperty("id").GetInt64()}";
         }
         
         // Get album info
@@ -596,6 +606,7 @@ public class SquidWTFMetadataService : IMusicMetadataService
             Title = track.GetProperty("title").GetString() ?? "",
             Artist = artistName,
             ArtistId = artistId,
+            Artists = allArtists,
             Album = albumTitle,
             AlbumId = albumId,
             Duration = track.TryGetProperty("duration", out var duration) 
@@ -649,9 +660,34 @@ public class SquidWTFMetadataService : IMusicMetadataService
             }
         }
         
-        // Get artist info
+        // Get all artists - prefer "artists" array for collaborations
-        string artistName = track.GetProperty("artist").GetProperty("name").GetString() ?? "";
+        var allArtists = new List<string>();
-        long artistIdNum = track.GetProperty("artist").GetProperty("id").GetInt64();
+        string artistName = "";
+        long artistIdNum = 0;
+        
+        if (track.TryGetProperty("artists", out var artists) && artists.GetArrayLength() > 0)
+        {
+            foreach (var artistEl in artists.EnumerateArray())
+            {
+                var name = artistEl.GetProperty("name").GetString();
+                if (!string.IsNullOrEmpty(name))
+                {
+                    allArtists.Add(name);
+                }
+            }
+            
+            if (allArtists.Count > 0)
+            {
+                artistName = allArtists[0];
+                artistIdNum = artists[0].GetProperty("id").GetInt64();
+            }
+        }
+        else if (track.TryGetProperty("artist", out var artist))
+        {
+            artistName = artist.GetProperty("name").GetString() ?? "";
+            artistIdNum = artist.GetProperty("id").GetInt64();
+            allArtists.Add(artistName);
+        }
         
         // Album artist - same as main artist for Tidal tracks
         string? albumArtist = artistName;
@@ -685,6 +721,7 @@ public class SquidWTFMetadataService : IMusicMetadataService
             Title = track.GetProperty("title").GetString() ?? "",
             Artist = artistName,
             ArtistId = $"ext-squidwtf-artist-{artistIdNum}",
+            Artists = allArtists,
             Album = albumTitle,
             AlbumId = $"ext-squidwtf-album-{albumIdNum}",
             AlbumArtist = albumArtist,