Add support for reading and storing Recording MBIDs from file metadata (#12173)

* Add recording metadata provider

* Add recording MBID

* Save recording MBID during probing

* Set recording ID in probe result normalizer

* Add recording external media type

* Reimplement after changes in upstream

* Rename variable

* Rename variable

* Revert "Set recording ID in probe result normalizer"

This reverts commit 9dd18c8aba3f970a5816a13a33acf3d58b0e440f.

* Fix setting provider ID

* Simplify code

* Fix comment

* Add missing using

4 files changed, 58 insertions, 2 deletions

diff --git a/MediaBrowser.Model/Entities/MetadataProvider.cs b/MediaBrowser.Model/Entities/MetadataProvider.cs
index dcc4ae88c..65337b60f 100644
--- a/MediaBrowser.Model/Entities/MetadataProvider.cs
+++ b/MediaBrowser.Model/Entities/MetadataProvider.cs
@@ -84,6 +84,11 @@ namespace MediaBrowser.Model.Entities
         /// <summary>
         /// The TvMaze provider.
         /// </summary>
-        TvMaze = 19
+        TvMaze = 19,
+
+        /// <summary>
+        /// The MusicBrainz recording provider.
+        /// </summary>
+        MusicBrainzRecording = 20,
     }
 }
diff --git a/MediaBrowser.Model/Providers/ExternalIdMediaType.cs b/MediaBrowser.Model/Providers/ExternalIdMediaType.cs
index ef518369c..71a131bb8 100644
--- a/MediaBrowser.Model/Providers/ExternalIdMediaType.cs
+++ b/MediaBrowser.Model/Providers/ExternalIdMediaType.cs
@@ -71,6 +71,11 @@ namespace MediaBrowser.Model.Providers
         /// <summary>
         /// A book.
         /// </summary>
-        Book = 13
+        Book = 13,
+
+        /// <summary>
+        /// A music recording.
+        /// </summary>
+        Recording = 14
     }
 }
diff --git a/MediaBrowser.Providers/MediaInfo/AudioFileProber.cs b/MediaBrowser.Providers/MediaInfo/AudioFileProber.cs
index a0481a642..963b61151 100644
--- a/MediaBrowser.Providers/MediaInfo/AudioFileProber.cs
+++ b/MediaBrowser.Providers/MediaInfo/AudioFileProber.cs
@@ -19,6 +19,7 @@ using MediaBrowser.Model.Entities;
 using MediaBrowser.Model.Extensions;
 using MediaBrowser.Model.MediaInfo;
 using Microsoft.Extensions.Logging;
+using static Jellyfin.Extensions.StringExtensions;
 
 namespace MediaBrowser.Providers.MediaInfo
 {
@@ -400,6 +401,24 @@ namespace MediaBrowser.Providers.MediaInfo
                 }
             }
 
+            if (options.ReplaceAllMetadata || !audio.TryGetProviderId(MetadataProvider.MusicBrainzRecording, out _))
+            {
+                if ((track.AdditionalFields.TryGetValue("MUSICBRAINZ_TRACKID", out var recordingMbId)
+                     || track.AdditionalFields.TryGetValue("MusicBrainz Track Id", out recordingMbId))
+                    && !string.IsNullOrEmpty(recordingMbId))
+                {
+                    audio.TrySetProviderId(MetadataProvider.MusicBrainzRecording, recordingMbId);
+                }
+                else if (track.AdditionalFields.TryGetValue("UFID", out var ufIdValue) && !string.IsNullOrEmpty(ufIdValue))
+                {
+                    // If tagged with MB Picard, the format is 'http://musicbrainz.org\0<recording MBID>'
+                    if (ufIdValue.Contains("musicbrainz.org", StringComparison.OrdinalIgnoreCase))
+                    {
+                        audio.TrySetProviderId(MetadataProvider.MusicBrainzRecording, ufIdValue.AsSpan().RightPart('\0').ToString());
+                    }
+                }
+            }
+
             // Save extracted lyrics if they exist,
             // and if the audio doesn't yet have lyrics.
             var lyrics = track.Lyrics.SynchronizedLyrics.Count > 0 ? track.Lyrics.FormatSynchToLRC() : track.Lyrics.UnsynchronizedLyrics;
diff --git a/MediaBrowser.Providers/Plugins/MusicBrainz/MusicBrainzRecordingId.cs b/MediaBrowser.Providers/Plugins/MusicBrainz/MusicBrainzRecordingId.cs
new file mode 100644
index 000000000..d2af62806
--- /dev/null
+++ b/MediaBrowser.Providers/Plugins/MusicBrainz/MusicBrainzRecordingId.cs
@@ -0,0 +1,27 @@
+using MediaBrowser.Controller.Entities.Audio;
+using MediaBrowser.Controller.Providers;
+using MediaBrowser.Model.Entities;
+using MediaBrowser.Model.Providers;
+
+namespace MediaBrowser.Providers.Plugins.MusicBrainz;
+
+/// <summary>
+/// MusicBrainz recording id.
+/// </summary>
+public class MusicBrainzRecordingId : IExternalId
+{
+    /// <inheritdoc />
+    public string ProviderName => "MusicBrainz";
+
+    /// <inheritdoc />
+    public string Key => MetadataProvider.MusicBrainzRecording.ToString();
+
+    /// <inheritdoc />
+    public ExternalIdMediaType? Type => ExternalIdMediaType.Recording;
+
+    /// <inheritdoc />
+    public string UrlFormatString => Plugin.Instance!.Configuration.Server + "/recording/{0}";
+
+    /// <inheritdoc />
+    public bool Supports(IHasProviderIds item) => item is Audio;
+}