syntax = "proto2";

package networkremote;

enum MsgType {

  UNKNOWN = 0;

  CONNECT = 1;
  DISCONNECT = 2;

  INFO = 3;
  KEEP_ALIVE = 4;

  GET_COLLECTION = 5;

  GET_PLAYLISTS = 6;
  GET_PLAYLIST_SONGS = 7;
  SEND_PLAYLISTS = 8;
  SEND_PLAYLIST_SONGS = 10;

  OPEN_PLAYLIST = 11;
  CLOSE_PLAYLIST = 12;
  UPDATE_PLAYLIST = 13;
  REMOVE_PLAYLIST_SONGS = 14;
  PLAYLIST_INSERT_URLS = 15;

  CHANGE_SONG = 21;
  SET_VOLUME = 22;
  SET_TRACK_POSITION = 23;
  GET_LYRICS = 24;
  DOWNLOAD_SONGS = 25;
  SONG_OFFER_RESPONSE = 26;
  SONG_OFFER_FILE_CHUNK = 27;
  CURRENT_METAINFO = 28;
  ENGINE_STATE_CHANGED = 29;
  UPDATE_TRACK_POSITION = 30;
  ACTIVE_PLAYLIST_CHANGED = 31;
  FIRST_DATA_SENT_COMPLETE = 32;
  LYRICS = 33;
  DOWNLOAD_QUEUE_EMPTY = 34;
  COLLECTION_CHUNK = 35;
  DOWNLOAD_TOTAL_SIZE = 36;
  TRANSCODING_FILES = 37;

  PLAYPAUSE = 101;
  PLAY = 102;
  PAUSE = 103;
  STOP = 104;
  STOP_AFTER = 105;
  NEXT = 106;
  PREVIOUS = 107;
  SHUFFLE_PLAYLIST = 108;

  REPEAT = 111;
  SHUFFLE = 112;

  LIST_FILES = 121;
  REQUEST_FILES = 122;
  APPEND_FILES = 123;

  LOVE = 131;
  RATE_SONG = 132;

}

enum EngineState {
  EngineState_Empty = 0;
  EngineState_Idle = 1;
  EngineState_Playing = 2;
  EngineState_Paused = 3;
}

message SongMetadata {

  enum Source {
    Source_Unknown = 0;
    Source_LocalFile = 1;
    Source_Collection = 2;
    Source_CDDA = 3;
    Source_Device = 4;
    Source_Stream = 5;
    Source_Tidal = 6;
    Source_Subsonic = 7;
    Source_Qobuz = 8;
    Source_SomaFM = 9;
    Source_RadioParadise = 10;
    Source_Spotify = 11;
  }

  enum FileType {
    FileType_Unknown = 0;
    FileType_WAV = 1;
    FileType_FLAC = 2;
    FileType_WavPack = 3;
    FileType_OggFlac = 4;
    FileType_OggVorbis = 5;
    FileType_OggOpus = 6;
    FileType_OggSpeex = 7;
    FileType_MPEG = 8;
    FileType_MP4 = 9;
    FileType_ASF = 10;
    FileType_AIFF = 11;
    FileType_MPC = 12;
    FileType_TrueAudio = 13;
    FileType_DSF = 14;
    FileType_DSDIFF = 15;
    FileType_PCM = 16;
    FileType_APE = 17;
    FileType_MOD = 18;
    FileType_S3M = 19;
    FileType_XM = 20;
    FileType_IT = 21;
    FileType_SPC = 22;
    FileType_VGM = 23;
    FileType_CDDA = 90;
    FileType_Stream = 91;
  }

  optional int32 song_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 uint32 playcount = 11;
  optional string pretty_length = 12;
  optional bytes art = 13;
  optional int64 length = 14;
  optional bool is_local = 15;
  optional Source source = 22;
  optional FileType filetype = 23;
  optional string filename = 16;
  optional int64 file_size = 17;
  optional float rating = 18;
  optional string url = 19;
  optional string art_automatic = 20;
  optional string art_manual = 21;

}

message Playlist {
  optional int32 playlist_id = 1;
  optional string name = 2;
  optional int32 item_count = 3;
  optional bool active = 4;
  optional bool closed = 5;
  optional bool favorite = 6;
}

enum RepeatMode {
  RepeatMode_Off = 0;
  RepeatMode_Track = 1;
  RepeatMode_Album = 2;
  RepeatMode_Playlist = 3;
  RepeatMode_OneByOne = 4;
  RepeatMode_Intro = 5;
}

enum ShuffleMode {
  ShuffleMode_Off = 0;
  ShuffleMode_All = 1;
  ShuffleMode_InsideAlbum = 2;
  ShuffleMode_Albums = 3;
}

message RequestPlaylists {
  optional bool include_closed = 1;
}

message RequestPlaylistSongs {
  optional int32 playlist_id = 1;
}

message RequestChangeSong {
  optional int32 playlist_id = 1;
  optional int32 song_index = 2;
}

message RequestSetVolume {
  optional uint32 volume = 1;
}

message Repeat {
  optional RepeatMode repeat_mode = 1;
}

message Shuffle {
  optional ShuffleMode shuffle_mode = 1;
}

message ResponseInfo {
  optional string version = 1;
  optional EngineState state = 2;
  optional bool allow_downloads = 3;
  repeated string files_music_extensions = 4;
}

message ResponseCurrentMetadata {
  optional SongMetadata song_metadata = 1;
}

message ResponsePlaylists {
  repeated Playlist playlist = 1;
  optional bool include_closed = 2;
}

message ResponsePlaylistSongs {
  optional Playlist requested_playlist = 1;
  repeated SongMetadata songs = 2;
}

message ResponseEngineStateChanged {
  optional EngineState state = 1;
}

message ResponseUpdateTrackPosition {
  optional int32 position = 1;
}

message RequestConnect {
  optional int32 auth_code = 1;
  optional bool send_playlist_songs = 2;
  optional bool downloader = 3;
}

enum ReasonDisconnect {
  Server_Shutdown = 1;
  Wrong_Auth_Code = 2;
  Not_Authenticated = 3;
  Download_Forbidden = 4;
}

message ResponseDisconnect {
  optional ReasonDisconnect reason_disconnect = 1;
}

message ResponseActiveChanged {
  optional int32 playlist_id = 1;
}

message RequestSetTrackPosition {
  optional int32 position = 1;
}

message RequestInsertUrls {

  optional int32 playlist_id = 1;
  repeated string urls = 2;
  optional int32 position = 3 [default = -1];
  optional bool play_now = 4 [default = false];
  optional bool enqueue = 5 [default = false];
  repeated SongMetadata songs = 6;
  optional string new_playlist_name = 7;

}

message RequestRemoveSongs {
  optional int32 playlist_id = 1;
  repeated int32 songs = 2;
}

message RequestOpenPlaylist {
  optional int32 playlist_id = 1;
}

message RequestClosePlaylist {
  optional int32 playlist_id = 1;
}

message RequestUpdatePlaylist {
  optional int32 playlist_id = 1;
  optional string new_playlist_name = 2;
  optional bool favorite = 3;
  optional bool create_new_playlist = 4;
  optional bool clear_playlist = 5;
}

message ResponseLyrics {
  repeated Lyric lyrics = 1;
}
message Lyric {
  optional string song_id = 1;
  optional string title = 2;
  optional string content = 3;
}

enum DownloadItem {
  CurrentItem = 1;
  ItemAlbum = 2;
  APlaylist = 3;
  Urls = 4;
}

message RequestDownloadSongs {
  optional DownloadItem download_item = 1;
  optional int32 playlist_id = 2;
  repeated string urls = 3;
  repeated int32 songs_ids = 4;
  optional string relative_path = 5;
}

message ResponseSongFileChunk {
  optional int32 chunk_number = 1;
  optional int32 chunk_count = 2;
  optional int32 file_number = 3;
  optional int32 file_count = 4;
  optional SongMetadata song_metadata = 6;
  optional bytes data = 7;
  optional int64 size = 8;
  optional bytes file_hash = 9;
}

message ResponseCollectionChunk {
  optional int32 chunk_number = 1;
  optional int32 chunk_count = 2;
  optional bytes data = 3;
  optional int64 size = 4;
  optional bytes file_hash = 5;
}

message ResponseSongOffer {
  optional bool accepted = 1;
}

message RequestRateSong {
  optional float rating = 1;
}

message ResponseDownloadTotalSize {
  optional int64 total_size = 1;
  optional int64 file_count = 2;
}

message ResponseTranscoderStatus {
  optional int32 processed = 1;
  optional int32 total = 2;
}

message RequestListFiles {
  optional string relative_path = 1;
}

message FileMetadata {
  optional string filename = 1;
  optional bool is_dir = 2;
}

message ResponseListFiles {
  enum Error {
    NONE = 0;
    ROOT_DIR_NOT_SET = 1;
    DIR_NOT_ACCESSIBLE = 2;
    DIR_NOT_EXIST = 3;
    UNKNOWN = 4;
  }
  optional string relative_path = 1;
  repeated FileMetadata files = 2;
  optional Error error = 3;
}

message RequestAppendFiles {
  optional int32 playlist_id = 1;
  optional string new_playlist_name = 2;
  optional string relative_path = 3;
  repeated string files = 4;
  optional bool play_now = 5;
  optional bool clear_first = 6;
}

message Stream {
  optional string name = 1;
  optional string url = 2;
  optional string url_logo = 3;
}

message Message {

  optional int32 version = 1 [default = 21];
  optional MsgType type = 2
      [default = UNKNOWN];

  optional RequestConnect request_connect = 21;
  optional RequestPlaylists request_playlists = 27;
  optional RequestPlaylistSongs request_playlist_songs = 10;
  optional RequestChangeSong request_change_song = 11;
  optional RequestSetVolume request_set_volume = 12;
  optional RequestSetTrackPosition request_set_track_position = 23;
  optional RequestInsertUrls request_insert_urls = 25;
  optional RequestRemoveSongs request_remove_songs = 26;
  optional RequestOpenPlaylist request_open_playlist = 28;
  optional RequestClosePlaylist request_close_playlist = 29;
  optional RequestUpdatePlaylist request_update_playlist = 53;
  optional RequestDownloadSongs request_download_songs = 31;
  optional RequestRateSong request_rate_song = 35;
  optional RequestListFiles request_list_files = 50;
  optional RequestAppendFiles request_append_files = 51;

  optional Repeat repeat = 13;
  optional Shuffle shuffle = 14;

  optional ResponseInfo response_info = 15;
  optional ResponseCurrentMetadata response_current_metadata = 16;
  optional ResponsePlaylists response_playlists = 17;
  optional ResponsePlaylistSongs response_playlist_songs = 18;
  optional ResponseEngineStateChanged response_engine_state_changed = 19;
  optional ResponseUpdateTrackPosition response_update_track_position = 20;
  optional ResponseDisconnect response_disconnect = 22;
  optional ResponseActiveChanged response_active_changed = 24;
  optional ResponseLyrics response_lyrics = 30;
  optional ResponseSongFileChunk response_song_file_chunk = 32;
  optional ResponseSongOffer response_song_offer = 33;
  optional ResponseCollectionChunk response_collection_chunk = 34;
  optional ResponseDownloadTotalSize response_download_total_size = 36;
  optional ResponseTranscoderStatus response_transcoder_status = 39;
  optional ResponseListFiles response_list_files = 52;

}