package pb.remote;

enum MsgType {
  // Messages generally send from client to server
  CONNECT = 0;
  DISCONNECT = 1;
  REQUEST_PLAYLISTS = 2;
  REQUEST_PLAYLIST_SONGS = 3;
  CHANGE_SONG = 4;
  SET_VOLUME = 5;
  
  // Messages send by both
  PLAY = 20;
  PLAYPAUSE = 21;
  PAUSE = 22;
  STOP = 23;
  NEXT = 24;
  PREV = 25;
  TOOGLE_SHUFFLE = 26;
  
  // Messages send from server to client
  INFOS = 40;
  CURRENT_METAINFOS = 41;
  PLAYLISTS = 42;
  PLAYLIST_SONGS = 43;
  KEEP_ALIVE = 44;
}

enum EngineState {
  Empty = 0;
  Idle = 1;
  Playing = 2;
  Paused = 3;
}

message Message {
  required int32 version = 1;
  required MsgType msgType = 2;
  
  optional EngineState state = 3;
  optional ClementineInfos infos = 4;
  optional SongMetadata currentSong = 5;
  optional int32 volume = 6;
  repeated Playlist playlists = 7;
}

message ClementineInfos {
  optional string version = 1;
}

message SongMetadata {
  optional int32 id = 1;
  optional int32 index = 2;
  optional string title = 3;
  optional string album = 4;
  optional string artist = 5;
  optional string albumartist = 6;
  optional int32 track = 7;
  optional int32 disc = 8;
  optional string pretty_year = 9;
  optional string genre = 10;
  optional int32 playcount = 11;
  optional string pretty_length = 12;
  optional bytes art = 13;
}

message Playlist {
  optional int32 id = 1;
  optional string name = 2;
  optional int32 item_count = 3;
  optional bool active = 4;
  
  repeated SongMetadata songs = 10;
}