Subsonic API: added musicBrainzId extra field

src/libs/subsonic/impl/responses/Album.cpp

@@ -81,21 +81,24 @@ namespace API::Subsonic
             }
         }
 
-        if (id3)
+        // Report the first GENRE for this track
+        ClusterType::pointer clusterType{ ClusterType::find(dbSession, "GENRE") };
+        if (clusterType)
         {
-            // Report the first GENRE for this track
+            auto clusters{ release->getClusterGroups({clusterType}, 1) };
-            ClusterType::pointer clusterType{ ClusterType::find(dbSession, "GENRE") };
+            if (!clusters.empty() && !clusters.front().empty())
-            if (clusterType)
+                albumNode.setAttribute("genre", clusters.front().front()->getName());
-            {
-                auto clusters{ release->getClusterGroups({clusterType}, 1) };
-                if (!clusters.empty() && !clusters.front().empty())
-                    albumNode.setAttribute("genre", clusters.front().front()->getName());
-            }
         }
 
         if (const Wt::WDateTime dateTime{ Service<Scrobbling::IScrobblingService>::get()->getStarredDateTime(user->getId(), release->getId()) }; dateTime.isValid())
             albumNode.setAttribute("starred", StringUtils::toISO8601String(dateTime)); // TODO report correct date/time
 
+        // OpenSubsonic specific field
+        {
+            std::optional<UUID> mbid {release->getMBID()};
+            albumNode.setAttribute("musicBrainzId", mbid ? mbid->getAsString() : "");
+        }
+
         return albumNode;
     }
 }

src/libs/subsonic/impl/responses/Artist.cpp

@@ -68,6 +68,12 @@ namespace API::Subsonic
         if (const Wt::WDateTime dateTime{ Service<Scrobbling::IScrobblingService>::get()->getStarredDateTime(user->getId(), artist->getId()) }; dateTime.isValid())
             artistNode.setAttribute("starred", StringUtils::toISO8601String(dateTime));
 
+        // OpenSubsonic specific field
+        {
+            std::optional<UUID> mbid {artist->getMBID()};
+            artistNode.setAttribute("musicBrainzId", mbid ? mbid->getAsString() : "");
+        }
+
         return artistNode;
     }
 }

src/libs/subsonic/impl/responses/Song.cpp

@@ -153,6 +153,12 @@ namespace API::Subsonic
                 trackResponse.setAttribute("genre", clusters.front().front()->getName());
         }
 
+        // OpenSubsonic specific field
+        {
+            std::optional<UUID> mbid {track->getTrackMBID()};
+            trackResponse.setAttribute("musicBrainzId", mbid ? mbid->getAsString() : "");
+        }
+
         return trackResponse;
     }
 }