public static void Delete(this MusicDb musicDb, MusicFile mf, DeleteContext context)
{
void clearRelatedEntities(MusicFile file)
{
musicDb.RemovePlaylistItems(file);
var tags = file.IdTags.ToArray();
musicDb.IdTags.RemoveRange(tags);
}
clearRelatedEntities(mf);
var track = mf.Track;
track?.MusicFiles.Remove(mf);
if (track?.MusicFiles.All(x => x.IsGenerated) ?? false)
{
foreach (var f in track.MusicFiles.ToArray())
{
clearRelatedEntities(f);
f.Track = null;
track.MusicFiles.Remove(f);
musicDb.MusicFiles.Remove(f);
log.Information($"{context}: Musicfile [MF-{f.Id}] deleted: {f.File}");
}
}
if (track?.MusicFiles.Count() == 0)
{
musicDb.Delete(track, context);
}
musicDb.MusicFiles.Remove(mf);
log.Information($"{context}: Musicfile [MF-{mf.Id}] deleted: {mf.File}");
}
private static void Delete(this MusicDb musicDb, Track track, DeleteContext context)
{
long artistId = track.Work.ArtistId;
foreach (var musicFile in track.MusicFiles.ToArray())
{
musicFile.Track = null;
musicDb.Delete(musicFile, context);
}
var performance = track.Performance;
performance?.Movements.Remove(track);
if (performance?.Movements.Count() == 0)
{
musicDb.Delete(performance, context);
}
var work = track.Work;
work?.Tracks.Remove(track);
if (work?.Tracks.Count() == 0)
{
musicDb.Delete(work, context);
}
musicDb.Tracks.Remove(track);
context.SetModifiedArtistId(artistId);
log.Information($"{context}: Track [T-{track.Id}] deleted: {track.Title}");
}
public int RemoveCurrentMusicFiles(MusicDb db)
{
int count = 0;
var filesInDb = GetMusicFilesFromDb(db);
foreach (var mf in filesInDb.ToArray())
{
++count;
var dc = new DeleteContext(this);
db.Delete(mf, dc);
}
return(count);
}
private static void Delete(this MusicDb musicDb, Artist artist, DeleteContext context)
{
long artistId = artist.Id;
foreach (var composition in artist.Compositions)
{
composition.Artist = null;
musicDb.Delete(composition, context);
}
foreach (var work in artist.Works)
{
work.Artist = null;
musicDb.Delete(work, context);
}
var styles = artist.ArtistStyles.ToArray();
musicDb.ArtistStyles.RemoveRange(styles);
musicDb.Artists.Remove(artist);
context.SetDeletedArtistId(artistId);
log.Information($"{context}: Artist [A-{artist.Id}] deleted: {artist.Name}");
}
private static void Delete(this MusicDb musicDb, Performance performance, DeleteContext context)
{
long artistId = performance.Composition.ArtistId;
foreach (var movement in performance.Movements)
{
movement.Performance = null;
// we do not delete movements here because
// a movement is a track and tracks are also in an album
}
performance.Movements.Clear();
var composition = performance.Composition;
composition?.Performances.Remove(performance);
if (composition?.Performances.Count() == 0)
{
musicDb.Delete(composition, context);
}
musicDb.Performances.Remove(performance);
context.SetModifiedArtistId(artistId);
log.Information($"{context}: Performance [P-{performance.Id}] deleted: {performance.Performers}");
}
private static void Delete(this MusicDb musicDb, Work work, DeleteContext context)
{
long artistId = work.ArtistId;
foreach (var track in work.Tracks)
{
track.Work = null;
musicDb.Delete(track, context);
}
var artist = work.Artist;
artist?.Works.Remove(work);
if (artist != null)
{
if (artist.Works.Count() == 0 && artist.Compositions.Count() == 0)
{
musicDb.Delete(artist, context);
}
}
musicDb.Works.Remove(work);
context.SetModifiedArtistId(artistId);
log.Information($"{context}: Work [W-{work.Id}] deleted: {work.Name}");
}
private static void Delete(this MusicDb musicDb, Composition composition, DeleteContext context)
{
long artistId = composition.ArtistId;
foreach (var performance in composition.Performances)
{
performance.Composition = null;
musicDb.Delete(performance, context);
}
composition.Performances.Clear();
musicDb.Compositions.Remove(composition);
var artist = composition.Artist;
artist?.Compositions.Remove(composition);
if (artist != null)
{
if (artist.Works.Count() == 0 && artist.Compositions.Count() == 0)
{
musicDb.Delete(artist, context);
}
}
context.SetModifiedArtistId(artistId);
log.Information($"{context}: Composition [C-{composition.Id}] deleted: {composition.Name}");
}