import 'converters.dart';
import '../sources/models.dart';

-- 
-- SCHEMA
-- 

-- CREATE TABLE queue(
--   "index" INT NOT NULL PRIMARY KEY UNIQUE,
--   source_id INT NOT NULL,
--   id TEXT NOT NULL,
--   context ENUM(QueueContextType) NOT NULL,
--   context_id TEXT,
--   current_track BOOLEAN UNIQUE
-- );
-- CREATE INDEX queue_index ON queue ("index");
-- CREATE INDEX queue_current_track ON queue ("current_track");

-- CREATE TABLE last_audio_state(
--   id INT NOT NULL PRIMARY KEY,
--   queue_mode ENUM(QueueMode) NOT NULL,
--   shuffle_indicies TEXT MAPPED BY `const IListIntConverter()`,
--   repeat ENUM(RepeatMode) NOT NULL
-- );

-- CREATE TABLE last_bottom_nav_state(
--   id INT NOT NULL PRIMARY KEY,
--   tab TEXT NOT NULL
-- );

-- CREATE TABLE last_library_state(
--   id INT NOT NULL PRIMARY KEY,
--   tab TEXT NOT NULL,
--   albums_list TEXT NOT NULL MAPPED BY `const ListQueryConverter()`,
--   artists_list TEXT NOT NULL MAPPED BY `const ListQueryConverter()`,
--   playlists_list TEXT NOT NULL MAPPED BY `const ListQueryConverter()`,
--   songs_list TEXT NOT NULL MAPPED BY `const ListQueryConverter()`
-- );

-- CREATE TABLE app_settings(
--   id INT NOT NULL PRIMARY KEY,
--   max_bitrate_wifi INT NOT NULL,
--   max_bitrate_mobile INT NOT NULL,
--   stream_format TEXT
-- ) WITH AppSettings;

CREATE TABLE sources(
  id INT NOT NULL PRIMARY KEY AUTOINCREMENT,
  name TEXT NOT NULL COLLATE NOCASE,
  is_active BOOLEAN UNIQUE,
  created_at DATETIME NOT NULL DEFAULT (strftime('%s', CURRENT_TIMESTAMP))
);

CREATE TABLE subsonic_source_options(
  source_id INT NOT NULL PRIMARY KEY,
  address TEXT NOT NULL MAPPED BY `const UriConverter()`,
  username TEXT NOT NULL,
  password TEXT NOT NULL,
  use_token_auth BOOLEAN NOT NULL DEFAULT 1,
  FOREIGN KEY (source_id) REFERENCES sources (id) ON DELETE CASCADE
);

CREATE TABLE artists(
  source_id INT NOT NULL,
  id TEXT NOT NULL,
  name TEXT NOT NULL COLLATE NOCASE,
  starred DATETIME,
  PRIMARY KEY (source_id, id),
  FOREIGN KEY (source_id) REFERENCES sources (id) ON DELETE CASCADE
) WITH Artist;
CREATE INDEX artists_source_id ON artists (source_id);

-- CREATE VIRTUAL TABLE artists_fts USING fts5(source_id, name, content=artists, content_rowid=rowid);

-- CREATE TRIGGER artists_ai AFTER INSERT ON artists BEGIN
--   INSERT INTO artists_fts(rowid, source_id, name)
--     VALUES (new.rowid, new.source_id, new.name);
-- END;

-- CREATE TRIGGER artists_ad AFTER DELETE ON artists BEGIN
--   INSERT INTO artists_fts(artists_fts, rowid, source_id, name)
--     VALUES('delete', old.rowid, old.source_id, old.name);
-- END;

-- CREATE TRIGGER artists_au AFTER UPDATE ON artists BEGIN
--   INSERT INTO artists_fts(artists_fts, rowid, source_id, name)
--     VALUES('delete', old.rowid, old.source_id, old.name);
--   INSERT INTO artists_fts(rowid, source_id, name)
--     VALUES (new.rowid, new.source_id, new.name);
-- END;

CREATE TABLE albums(
  source_id INT NOT NULL,
  id TEXT NOT NULL,
  artist_id TEXT,
  name TEXT NOT NULL COLLATE NOCASE,
  album_artist TEXT COLLATE NOCASE,
  created DATETIME NOT NULL,
  cover_art TEXT,
  genre TEXT,
  year INT,
  starred DATETIME,
  frequent_rank INT,
  recent_rank INT,
  PRIMARY KEY (source_id, id),
  FOREIGN KEY (source_id) REFERENCES sources (id) ON DELETE CASCADE
) WITH Album;
CREATE INDEX albums_source_id ON albums (source_id);
CREATE INDEX albums_source_id_artist_id_idx ON albums (source_id, artist_id);

-- CREATE VIRTUAL TABLE albums_fts USING fts5(source_id, name, content=albums, content_rowid=rowid);

-- CREATE TRIGGER albums_ai AFTER INSERT ON albums BEGIN
--   INSERT INTO albums_fts(rowid, source_id, name)
--     VALUES (new.rowid, new.source_id, new.name);
-- END;

-- CREATE TRIGGER albums_ad AFTER DELETE ON albums BEGIN
--   INSERT INTO albums_fts(albums_fts, rowid, source_id, name)
--     VALUES('delete', old.rowid, old.source_id, old.name);
-- END;

-- CREATE TRIGGER albums_au AFTER UPDATE ON albums BEGIN
--   INSERT INTO albums_fts(albums_fts, rowid, source_id, name)
--     VALUES('delete', old.rowid, old.source_id, old.name);
--   INSERT INTO albums_fts(rowid, source_id, name)
--     VALUES (new.rowid, new.source_id, new.name);
-- END;

CREATE TABLE playlists(
  source_id INT NOT NULL,
  id TEXT NOT NULL,
  name TEXT NOT NULL COLLATE NOCASE,
  comment TEXT COLLATE NOCASE,
  cover_art TEXT,
  song_count INT NOT NULL,
  created DATETIME NOT NULL,
  changed DATETIME NOT NULL DEFAULT (strftime('%s', CURRENT_TIMESTAMP)),
  PRIMARY KEY (source_id, id),
  FOREIGN KEY (source_id) REFERENCES sources (id) ON DELETE CASCADE
) WITH Playlist;
CREATE INDEX playlists_source_id ON playlists (source_id);

CREATE TABLE playlist_songs(
  source_id INT NOT NULL,
  playlist_id TEXT NOT NULL,
  song_id TEXT NOT NULL,
  position INT NOT NULL,
  PRIMARY KEY (source_id, playlist_id, position),
  FOREIGN KEY (source_id) REFERENCES sources (id) ON DELETE CASCADE
) WITH PlaylistSong;
CREATE INDEX playlist_songs_source_id_playlist_id_idx ON playlist_songs (source_id, playlist_id);
CREATE INDEX playlist_songs_source_id_song_id_idx ON playlist_songs (source_id, song_id);

-- CREATE VIRTUAL TABLE playlists_fts USING fts5(source_id, name, content=playlists, content_rowid=rowid);

-- CREATE TRIGGER playlists_ai AFTER INSERT ON playlists BEGIN
--   INSERT INTO playlists_fts(rowid, source_id, name)
--     VALUES (new.rowid, new.source_id, new.name);
-- END;

-- CREATE TRIGGER playlists_ad AFTER DELETE ON playlists BEGIN
--   INSERT INTO playlists_fts(playlists_fts, rowid, source_id, name)
--     VALUES('delete', old.rowid, old.source_id, old.name);
-- END;

-- CREATE TRIGGER playlists_au AFTER UPDATE ON playlists BEGIN
--   INSERT INTO playlists_fts(playlists_fts, rowid, source_id, name)
--     VALUES('delete', old.rowid, old.source_id, old.name);
--   INSERT INTO playlists_fts(rowid, source_id, name)
--     VALUES (new.rowid, new.source_id, new.name);
-- END;

CREATE TABLE songs(
  source_id INT NOT NULL,
  id TEXT NOT NULL,
  album_id TEXT,
  artist_id TEXT,
  title TEXT NOT NULL COLLATE NOCASE,
  album TEXT COLLATE NOCASE,
  artist TEXT COLLATE NOCASE,
  duration INT MAPPED BY `const DurationSecondsConverter()`,
  track INT,
  disc INT,
  starred DATETIME,
  genre TEXT,
  updated DATETIME NOT NULL DEFAULT (strftime('%s', CURRENT_TIMESTAMP)),
  PRIMARY KEY (source_id, id),
  FOREIGN KEY (source_id) REFERENCES sources (id) ON DELETE CASCADE
) WITH Song;
CREATE INDEX songs_source_id_album_id_idx ON songs (source_id, album_id);
CREATE INDEX songs_source_id_artist_id_idx ON songs (source_id, artist_id);

-- CREATE VIRTUAL TABLE songs_fts USING fts5(source_id, title, content=songs, content_rowid=rowid);

-- CREATE TRIGGER songs_ai AFTER INSERT ON songs BEGIN
--   INSERT INTO songs_fts(rowid, source_id, title)
--     VALUES (new.rowid, new.source_id, new.title);
-- END;

-- CREATE TRIGGER songs_ad AFTER DELETE ON songs BEGIN
--   INSERT INTO songs_fts(songs_fts, rowid, source_id, title)
--     VALUES('delete', old.rowid, old.source_id, old.title);
-- END;

-- CREATE TRIGGER songs_au AFTER UPDATE ON songs BEGIN
--   INSERT INTO songs_fts(songs_fts, rowid, source_id, title)
--     VALUES('delete', old.rowid, old.source_id, old.title);
--   INSERT INTO songs_fts(rowid, source_id, title)
--     VALUES (new.rowid, new.source_id, new.title);
-- END;

-- 
-- QUERIES
-- 

-- sourcesCount:
--   SELECT COUNT(*)
--   FROM sources;

-- allSubsonicSources WITH SubsonicSettings:
--   SELECT 
--     sources.id,
--     sources.name,
--     sources.address,
--     sources.is_active,
--     sources.created_at,
--     subsonic_sources.features,
--     subsonic_sources.username,
--     subsonic_sources.password,
--     subsonic_sources.use_token_auth
--   FROM sources
--   JOIN subsonic_sources ON subsonic_sources.source_id = sources.id;

-- albumIdsWithDownloadStatus:
--   SELECT albums.id
--   FROM albums
--   JOIN songs on songs.source_id = albums.source_id AND songs.album_id = albums.id
--   WHERE 
--     albums.source_id = :source_id
--     AND (songs.download_file_path IS NOT NULL OR songs.download_task_id IS NOT NULL)
--   GROUP BY albums.id;

-- artistIdsWithDownloadStatus:
--   SELECT artists.id
--   FROM artists
--   LEFT JOIN albums ON artists.source_id = albums.source_id AND artists.id = albums.artist_id
--   LEFT JOIN songs ON albums.source_id = songs.source_id AND albums.id = songs.album_id
--   WHERE
--     artists.source_id = :source_id
--     AND (songs.download_file_path IS NOT NULL OR songs.download_task_id IS NOT NULL)
--   GROUP BY artists.id;

-- playlistIdsWithDownloadStatus:
--   SELECT playlists.id
--   FROM playlists
--   LEFT JOIN playlist_songs ON playlist_songs.source_id = playlists.source_id AND playlist_songs.playlist_id = playlists.id
--   LEFT JOIN songs ON playlist_songs.source_id = songs.source_id AND playlist_songs.song_id = songs.id
--   WHERE 
--     playlists.source_id = :source_id
--     AND (songs.download_file_path IS NOT NULL OR songs.download_task_id IS NOT NULL)
--   GROUP BY playlists.id;

-- searchArtists:
--   SELECT rowid
--   FROM artists_fts
--   WHERE artists_fts MATCH :query
--   ORDER BY rank
--   LIMIT :limit OFFSET :offset;

-- searchAlbums:
--   SELECT rowid
--   FROM albums_fts
--   WHERE albums_fts MATCH :query
--   ORDER BY rank
--   LIMIT :limit OFFSET :offset;

-- searchPlaylists:
--   SELECT rowid
--   FROM playlists_fts
--   WHERE playlists_fts MATCH :query
--   ORDER BY rank
--   LIMIT :limit OFFSET :offset;

-- searchSongs:
--   SELECT rowid
--   FROM songs_fts
--   WHERE songs_fts MATCH :query
--   ORDER BY rank
--   LIMIT :limit OFFSET :offset;

-- artistById:
--   SELECT * FROM artists 
--   WHERE source_id = :source_id AND id = :id;

-- albumById:
--   SELECT * FROM albums 
--   WHERE source_id = :source_id AND id = :id;

-- albumsByArtistId:
--   SELECT * FROM albums 
--   WHERE source_id = :source_id AND artist_id = :artist_id;

-- albumsInIds:
--   SELECT * FROM albums 
--   WHERE source_id = :source_id AND id IN :ids;

-- playlistById:
--   SELECT * FROM playlists 
--   WHERE source_id = :source_id AND id = :id;

-- songById:
--   SELECT * FROM songs 
--   WHERE source_id = :source_id AND id = :id;

-- albumGenres:
--   SELECT
--     genre
--   FROM albums
--   WHERE genre IS NOT NULL AND source_id = :source_id
--   GROUP BY genre
--   ORDER BY COUNT(genre) DESC
--   LIMIT :limit OFFSET :offset;

-- albumsByGenre:
--   SELECT 
--     albums.*
--   FROM albums
--   JOIN songs ON albums.source_id = songs.source_id AND albums.id = songs.album_id
--   WHERE songs.source_id = :source_id AND songs.genre = :genre
--   GROUP BY albums.id
--   ORDER BY albums.created DESC, albums.name
--   LIMIT :limit OFFSET :offset;

-- filterSongsByGenre:
--   SELECT 
--     songs.*
--   FROM songs
--   JOIN albums ON albums.source_id = songs.source_id AND albums.id = songs.album_id
--   WHERE $predicate
--   ORDER BY $order
--   LIMIT $limit;

-- songsByGenreCount:
--   SELECT
--     COUNT(*)
--   FROM songs
--   WHERE songs.source_id = :source_id AND songs.genre = :genre;

-- songsWithDownloadTasks:
--   SELECT * FROM songs
--   WHERE download_task_id IS NOT NULL;

-- songByDownloadTask:
--   SELECT * FROM songs
--   WHERE download_task_id = :task_id;

-- clearSongDownloadTaskBySong:
--   UPDATE songs SET
--     download_task_id = NULL
--   WHERE source_id = :source_id AND id = :id;

-- completeSongDownload:
--   UPDATE songs SET
--     download_task_id = NULL,
--     download_file_path = :file_path
--   WHERE download_task_id = :task_id;

-- clearSongDownloadTask:
--   UPDATE songs SET
--     download_task_id = NULL,
--     download_file_path = NULL
--   WHERE download_task_id = :task_id;

-- updateSongDownloadTask:
--   UPDATE songs SET
--     download_task_id = :task_id
--   WHERE source_id = :source_id AND id = :id;

-- deleteSongDownloadFile:
--   UPDATE songs SET
--     download_task_id = NULL,
--     download_file_path = NULL
--   WHERE source_id = :source_id AND id = :id;

-- albumDownloadStatus WITH ListDownloadStatus:
--   SELECT
--     COUNT(*) as total,
--     COUNT(CASE WHEN songs.download_file_path IS NOT NULL THEN songs.id ELSE NULL END) AS downloaded,
--     COUNT(CASE WHEN songs.download_task_id IS NOT NULL THEN songs.id ELSE NULL END) AS downloading
--   FROM albums
--   JOIN songs ON albums.source_id = songs.source_id AND albums.id = songs.album_id
--   WHERE albums.source_id = :source_id AND albums.id = :id;

-- playlistDownloadStatus WITH ListDownloadStatus:
--   SELECT
--     COUNT(DISTINCT songs.id) as total,
--     COUNT(DISTINCT CASE WHEN songs.download_file_path IS NOT NULL THEN songs.id ELSE NULL END) AS downloaded,
--     COUNT(DISTINCT CASE WHEN songs.download_task_id IS NOT NULL THEN songs.id ELSE NULL END) AS downloading
--   FROM playlists
--   JOIN playlist_songs ON
--     playlist_songs.source_id = playlists.source_id
--     AND playlist_songs.playlist_id = playlists.id
--   JOIN songs ON
--     songs.source_id = playlist_songs.source_id
--     AND songs.id = playlist_songs.song_id
--   WHERE
--     playlists.source_id = :source_id AND playlists.id = :id;

-- filterAlbums:
--   SELECT 
--     albums.*
--   FROM albums
--   WHERE $predicate
--   ORDER BY $order
--   LIMIT $limit;

-- filterAlbumsDownloaded:
--   SELECT 
--     albums.*
--   FROM albums
--   LEFT JOIN songs ON albums.source_id = songs.source_id AND albums.id = songs.album_id
--   WHERE $predicate
--   GROUP BY albums.source_id, albums.id
--   HAVING SUM(CASE WHEN songs.download_file_path IS NOT NULL THEN 1 ELSE 0 END) > 0
--   ORDER BY $order
--   LIMIT $limit;

-- filterArtists:
--   SELECT 
--     artists.*
--   FROM artists
--   WHERE $predicate
--   ORDER BY $order
--   LIMIT $limit;

-- filterArtistsDownloaded WITH Artist:
--   SELECT 
--     artists.*,
--     COUNT(DISTINCT CASE WHEN songs.download_file_path IS NOT NULL THEN songs.album_id ELSE NULL END) AS album_count
--   FROM artists
--   LEFT JOIN albums ON artists.source_id = albums.source_id AND artists.id = albums.artist_id
--   LEFT JOIN songs ON albums.source_id = songs.source_id AND albums.id = songs.album_id
--   WHERE $predicate
--   GROUP BY artists.source_id, artists.id
--   HAVING SUM(CASE WHEN songs.download_file_path IS NOT NULL THEN 1 ELSE 0 END) > 0
--   ORDER BY $order
--   LIMIT $limit;

-- filterPlaylists:
--   SELECT 
--     playlists.*
--   FROM playlists
--   WHERE $predicate
--   ORDER BY $order
--   LIMIT $limit;

-- filterPlaylistsDownloaded WITH Playlist:
--   SELECT 
--     playlists.*,
--     COUNT(CASE WHEN songs.download_file_path IS NOT NULL THEN songs.id ELSE NULL END) AS song_count
--   FROM playlists
--   LEFT JOIN playlist_songs ON playlist_songs.source_id = playlists.source_id AND playlist_songs.playlist_id = playlists.id
--   LEFT JOIN songs ON playlist_songs.source_id = songs.source_id AND playlist_songs.song_id = songs.id
--   WHERE $predicate
--   GROUP BY playlists.source_id, playlists.id
--   HAVING SUM(CASE WHEN songs.download_file_path IS NOT NULL THEN 1 ELSE 0 END) > 0
--   ORDER BY $order
--   LIMIT $limit;

-- filterSongs:
--   SELECT 
--     songs.*
--   FROM songs
--   WHERE $predicate
--   ORDER BY $order
--   LIMIT $limit;

-- filterSongsDownloaded:
--   SELECT 
--     songs.*
--   FROM songs
--   WHERE $predicate AND songs.download_file_path IS NOT NULL
--   ORDER BY $order
--   LIMIT $limit;

-- playlistIsDownloaded:
--   SELECT
--     COUNT(*) = 0
--   FROM playlists
--   JOIN playlist_songs ON
--     playlist_songs.source_id = playlists.source_id
--     AND playlist_songs.playlist_id = playlists.id
--   JOIN songs ON
--     songs.source_id = playlist_songs.source_id
--     AND songs.id = playlist_songs.song_id
--   WHERE
--     playlists.source_id = :source_id AND playlists.id = :id
--     AND songs.download_file_path IS NULL;

-- playlistHasDownloadsInProgress:
--   SELECT
--     COUNT(*) > 0
--   FROM playlists
--   JOIN playlist_songs ON
--     playlist_songs.source_id = playlists.source_id
--     AND playlist_songs.playlist_id = playlists.id
--   JOIN songs ON
--     songs.source_id = playlist_songs.source_id
--     AND songs.id = playlist_songs.song_id
--   WHERE playlists.source_id = :source_id AND playlists.id = :id
--     AND songs.download_task_id IS NOT NULL;

-- songsInIds:
--   SELECT *
--   FROM songs
--   WHERE source_id = :source_id AND id IN :ids;

-- songsInRowIds:
--   SELECT *
--   FROM songs
--   WHERE ROWID IN :row_ids;

-- albumsInRowIds:
--   SELECT *
--   FROM albums
--   WHERE ROWID IN :row_ids;

-- artistsInRowIds:
--   SELECT *
--   FROM artists
--   WHERE ROWID IN :row_ids;

-- playlistsInRowIds:
--   SELECT *
--   FROM playlists
--   WHERE ROWID IN :row_ids;

-- currentTrackIndex:
--   SELECT 
--     queue."index"
--   FROM queue
--   WHERE queue.current_track = 1;

-- queueLength:
--   SELECT COUNT(*) FROM queue;

-- queueInIndicies:
--   SELECT *
--   FROM queue
--   WHERE queue."index" IN :indicies;

-- getAppSettings:
--   SELECT * FROM app_settings
--   WHERE id = 1;