Subsonic API: added replayGain field in Song

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

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2023 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "responses/ReplayGain.hpp"
+
+#include "services/database/Track.hpp"
+
+namespace API::Subsonic
+{
+    Response::Node createReplayGainNode(const Database::ObjectPtr<Database::Track>& track)
+    {
+        Response::Node replayGainNode;
+
+        if (const auto trackReplayGain{ track->getTrackReplayGain() })
+            replayGainNode.setAttribute("trackGain", *trackReplayGain);
+
+        if (const auto releaseReplayGain{ track->getReleaseReplayGain() })
+            replayGainNode.setAttribute("albumGain", *releaseReplayGain);
+
+        return replayGainNode;
+    }
+}

src/libs/subsonic/impl/responses/ReplayGain.hpp

@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2023 Emeric Poupon
+ *
+ * This file is part of LMS.
+ *
+ * LMS is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LMS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LMS.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "services/database/Object.hpp"
+#include "SubsonicResponse.hpp"
+
+namespace Database
+{
+    class Track;
+}
+
+namespace API::Subsonic
+{
+    Response::Node createReplayGainNode(const Database::ObjectPtr<Database::Track>& track);
+}

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

@@ -32,6 +32,7 @@
 #include "utils/String.hpp"
 #include "responses/Artist.hpp"
 #include "responses/Contributor.hpp"
+#include "responses/ReplayGain.hpp"
 #include "SubsonicId.hpp"
 #include "Utils.hpp"
 
@@ -217,6 +218,8 @@ namespace API::Subsonic
         addClusters("genres", "GENRE");
         addClusters("moods", "MOOD");
 
+        trackResponse.addChild("replayGain", createReplayGainNode(track));
+
         return trackResponse;
     }
 }