Added scrobbling state for listens

src/libs/services/database/impl/Session.cpp

@@ -414,6 +414,7 @@ CREATE TABLE IF NOT EXISTS "listen" (
   "version" integer not null,
   "date_time" text,
   "scrobbler" integer not null,
+  "scrobbling_state" integer not null,
   "track_id" bigint,
   "user_id" bigint,
   constraint "fk_listen_track" foreign key ("track_id") references "track" ("id") on delete cascade deferrable initially deferred,

src/libs/services/database/include/services/database/Listen.hpp

@@ -95,6 +95,7 @@ class Listen : public Object<Listen, ListenId>
 		{
 			Wt::Dbo::field(a, _dateTime, "date_time");
 			Wt::Dbo::field(a, _scrobbler, "scrobbler");
+			Wt::Dbo::field(a, _scrobblingState, "scrobbling_state");
 
 			Wt::Dbo::belongsTo(a, _track, "track", Wt::Dbo::OnDeleteCascade);
 			Wt::Dbo::belongsTo(a, _user, "user", Wt::Dbo::OnDeleteCascade);
@@ -103,6 +104,8 @@ class Listen : public Object<Listen, ListenId>
 	private:
 		Wt::WDateTime		_dateTime;
 		Scrobbler			_scrobbler;
+		ScrobblingState		_scrobblingState {ScrobblingState::PendingAdd};
+
 		Wt::Dbo::ptr<User>	_user;
 		Wt::Dbo::ptr<Track>	_track;
 };

src/libs/services/database/include/services/database/Types.hpp

@@ -111,7 +111,6 @@ namespace Database
 		StarredDateDesc,
 	};
 
-	// Do not change enum values!
 	enum class TrackArtistLinkType
 	{
 		Artist		= 0,	// regular track artist
@@ -128,7 +127,6 @@ namespace Database
 	};
 
 	// User selectable audio file formats
-	// Do not change values
 	enum class AudioFormat
 	{
 		MP3				= 1,
@@ -143,14 +141,19 @@ namespace Database
 	void visitAllowedAudioBitrates(std::function<void(Bitrate)>);
 	bool isAudioBitrateAllowed(Bitrate bitrate);
 
-	// Do not change enum values!
 	enum class Scrobbler
 	{
 		Internal		= 0,
 		ListenBrainz	= 1,
 	};
 
-	// Do not change enum values!
+	enum class ScrobblingState
+	{
+		PendingAdd		= 0,
+		Synchronized	= 1,
+		PendingRemove	= 2,
+	};
+
 	enum class UserType
 	{
 		REGULAR	= 0,
@@ -158,14 +161,12 @@ namespace Database
 		DEMO	= 2,
 	};
 
-	// Do not change enum values!
 	enum class UITheme
 	{
 		Light	= 0,
 		Dark	= 1,
 	};
 
-	// Do not change enum values!
 	enum class SubsonicArtistListMode
 	{
 		AllArtists		= 0,