#pragma warning disable CS1591 using System; using System.Collections.Generic; using System.Linq; using Jellyfin.Data.Entities; using Jellyfin.Data.Enums; using Jellyfin.Extensions; using MediaBrowser.Controller.Dto; using MediaBrowser.Controller.Entities; using MediaBrowser.Controller.Entities.Audio; using MediaBrowser.Controller.Library; using MediaBrowser.Controller.Playlists; using MusicAlbum = MediaBrowser.Controller.Entities.Audio.MusicAlbum; namespace Emby.Server.Implementations.Library { public class MusicManager : IMusicManager { private readonly ILibraryManager _libraryManager; public MusicManager(ILibraryManager libraryManager) { _libraryManager = libraryManager; } public List<BaseItem> GetInstantMixFromSong(Audio item, User? user, DtoOptions dtoOptions) { var list = new List<BaseItem> { item }; list.AddRange(GetInstantMixFromGenres(item.Genres, user, dtoOptions)); return list; } /// <inheritdoc /> public List<BaseItem> GetInstantMixFromArtist(MusicArtist artist, User? user, DtoOptions dtoOptions) { return GetInstantMixFromGenres(artist.Genres, user, dtoOptions); } public List<BaseItem> GetInstantMixFromAlbum(MusicAlbum item, User? user, DtoOptions dtoOptions) { return GetInstantMixFromGenres(item.Genres, user, dtoOptions); } public List<BaseItem> GetInstantMixFromFolder(Folder item, User? user, DtoOptions dtoOptions) { var genres = item .GetRecursiveChildren(user, new InternalItemsQuery(user) { IncludeItemTypes = [BaseItemKind.Audio], DtoOptions = dtoOptions }) .Cast<Audio>() .SelectMany(i => i.Genres) .Concat(item.Genres) .DistinctNames(); return GetInstantMixFromGenres(genres, user, dtoOptions); } public List<BaseItem> GetInstantMixFromPlaylist(Playlist item, User? user, DtoOptions dtoOptions) { return GetInstantMixFromGenres(item.Genres, user, dtoOptions); } public List<BaseItem> GetInstantMixFromGenres(IEnumerable<string> genres, User? user, DtoOptions dtoOptions) { var genreIds = genres.DistinctNames().Select(i => { try { return _libraryManager.GetMusicGenre(i).Id; } catch { return Guid.Empty; } }).Where(i => !i.IsEmpty()).ToArray(); return GetInstantMixFromGenreIds(genreIds, user, dtoOptions); } public List<BaseItem> GetInstantMixFromGenreIds(Guid[] genreIds, User? user, DtoOptions dtoOptions) { return _libraryManager.GetItemList(new InternalItemsQuery(user) { IncludeItemTypes = [BaseItemKind.Audio], GenreIds = genreIds, Limit = 200, OrderBy = [(ItemSortBy.Random, SortOrder.Ascending)], DtoOptions = dtoOptions }); } public List<BaseItem> GetInstantMixFromItem(BaseItem item, User? user, DtoOptions dtoOptions) { if (item is MusicGenre) { return GetInstantMixFromGenreIds([item.Id], user, dtoOptions); } if (item is Playlist playlist) { return GetInstantMixFromPlaylist(playlist, user, dtoOptions); } if (item is MusicAlbum album) { return GetInstantMixFromAlbum(album, user, dtoOptions); } if (item is MusicArtist artist) { return GetInstantMixFromArtist(artist, user, dtoOptions); } if (item is Audio song) { return GetInstantMixFromSong(song, user, dtoOptions); } if (item is Folder folder) { return GetInstantMixFromFolder(folder, user, dtoOptions); } return new List<BaseItem>(); } } }