jellyfin-server/MediaBrowser.Api/Library/LibraryService.cs
2014-03-25 17:13:55 -04:00

820 lines
30 KiB
C#

using MediaBrowser.Common.Extensions;
using MediaBrowser.Controller.Channels;
using MediaBrowser.Controller.Dto;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.Entities.Movies;
using MediaBrowser.Controller.Entities.TV;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Persistence;
using MediaBrowser.Controller.Session;
using MediaBrowser.Model.Channels;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Querying;
using ServiceStack;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Api.Library
{
[Route("/Items/{Id}/File", "GET")]
[Api(Description = "Gets the original file of an item")]
public class GetFile
{
/// <summary>
/// Gets or sets the id.
/// </summary>
/// <value>The id.</value>
[ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
public string Id { get; set; }
}
[Route("/Videos/{Id}/Subtitle/{Index}", "GET")]
[Api(Description = "Gets an external subtitle file")]
public class GetSubtitle
{
/// <summary>
/// Gets or sets the id.
/// </summary>
/// <value>The id.</value>
[ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
public string Id { get; set; }
[ApiMember(Name = "Index", Description = "The subtitle stream index", IsRequired = true, DataType = "int", ParameterType = "path", Verb = "GET")]
public int Index { get; set; }
}
/// <summary>
/// Class GetCriticReviews
/// </summary>
[Route("/Items/{Id}/CriticReviews", "GET")]
[Api(Description = "Gets critic reviews for an item")]
public class GetCriticReviews : IReturn<QueryResult<ItemReview>>
{
/// <summary>
/// Gets or sets the id.
/// </summary>
/// <value>The id.</value>
[ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
public string Id { get; set; }
/// <summary>
/// Skips over a given number of items within the results. Use for paging.
/// </summary>
/// <value>The start index.</value>
[ApiMember(Name = "StartIndex", Description = "Optional. The record index to start at. All items with a lower index will be dropped from the results.", IsRequired = false, DataType = "int", ParameterType = "query", Verb = "GET")]
public int? StartIndex { get; set; }
/// <summary>
/// The maximum number of items to return
/// </summary>
/// <value>The limit.</value>
[ApiMember(Name = "Limit", Description = "Optional. The maximum number of records to return", IsRequired = false, DataType = "int", ParameterType = "query", Verb = "GET")]
public int? Limit { get; set; }
}
/// <summary>
/// Class GetThemeSongs
/// </summary>
[Route("/Items/{Id}/ThemeSongs", "GET")]
[Api(Description = "Gets theme songs for an item")]
public class GetThemeSongs : IReturn<ThemeMediaResult>
{
/// <summary>
/// Gets or sets the user id.
/// </summary>
/// <value>The user id.</value>
[ApiMember(Name = "UserId", Description = "Optional. Filter by user id, and attach user data", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
public Guid? UserId { get; set; }
/// <summary>
/// Gets or sets the id.
/// </summary>
/// <value>The id.</value>
[ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
public string Id { get; set; }
[ApiMember(Name = "InheritFromParent", Description = "Determines whether or not parent items should be searched for theme media.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
public bool InheritFromParent { get; set; }
}
/// <summary>
/// Class GetThemeVideos
/// </summary>
[Route("/Items/{Id}/ThemeVideos", "GET")]
[Api(Description = "Gets theme videos for an item")]
public class GetThemeVideos : IReturn<ThemeMediaResult>
{
/// <summary>
/// Gets or sets the user id.
/// </summary>
/// <value>The user id.</value>
[ApiMember(Name = "UserId", Description = "Optional. Filter by user id, and attach user data", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
public Guid? UserId { get; set; }
/// <summary>
/// Gets or sets the id.
/// </summary>
/// <value>The id.</value>
[ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
public string Id { get; set; }
[ApiMember(Name = "InheritFromParent", Description = "Determines whether or not parent items should be searched for theme media.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
public bool InheritFromParent { get; set; }
}
/// <summary>
/// Class GetThemeVideos
/// </summary>
[Route("/Items/{Id}/ThemeMedia", "GET")]
[Api(Description = "Gets theme videos and songs for an item")]
public class GetThemeMedia : IReturn<AllThemeMediaResult>
{
/// <summary>
/// Gets or sets the user id.
/// </summary>
/// <value>The user id.</value>
[ApiMember(Name = "UserId", Description = "Optional. Filter by user id, and attach user data", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
public Guid? UserId { get; set; }
/// <summary>
/// Gets or sets the id.
/// </summary>
/// <value>The id.</value>
[ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
public string Id { get; set; }
[ApiMember(Name = "InheritFromParent", Description = "Determines whether or not parent items should be searched for theme media.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
public bool InheritFromParent { get; set; }
}
[Route("/Library/Refresh", "POST")]
[Api(Description = "Starts a library scan")]
public class RefreshLibrary : IReturnVoid
{
}
[Route("/Items/{Id}", "DELETE")]
[Api(Description = "Deletes an item from the library and file system")]
public class DeleteItem : IReturnVoid
{
[ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "DELETE")]
public string Id { get; set; }
}
[Route("/Items/Counts", "GET")]
[Api(Description = "Gets counts of various item types")]
public class GetItemCounts : IReturn<ItemCounts>
{
[ApiMember(Name = "UserId", Description = "Optional. Get counts from a specific user's library.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
public Guid? UserId { get; set; }
[ApiMember(Name = "IsFavorite", Description = "Optional. Get counts of favorite items", IsRequired = false, DataType = "bool", ParameterType = "query", Verb = "GET")]
public bool? IsFavorite { get; set; }
}
[Route("/Items/{Id}/Ancestors", "GET")]
[Api(Description = "Gets all parents of an item")]
public class GetAncestors : IReturn<BaseItemDto[]>
{
/// <summary>
/// Gets or sets the user id.
/// </summary>
/// <value>The user id.</value>
[ApiMember(Name = "UserId", Description = "Optional. Filter by user id, and attach user data", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
public Guid? UserId { get; set; }
/// <summary>
/// Gets or sets the id.
/// </summary>
/// <value>The id.</value>
[ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
public string Id { get; set; }
}
[Route("/Items/YearIndex", "GET")]
[Api(Description = "Gets a year index based on an item query.")]
public class GetYearIndex : IReturn<List<ItemIndex>>
{
/// <summary>
/// Gets or sets the user id.
/// </summary>
/// <value>The user id.</value>
[ApiMember(Name = "UserId", Description = "Optional. Filter by user id, and attach user data", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
public Guid? UserId { get; set; }
[ApiMember(Name = "IncludeItemTypes", Description = "Optional. If specified, results will be filtered based on item type. This allows multiple, comma delimeted.", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET", AllowMultiple = true)]
public string IncludeItemTypes { get; set; }
}
/// <summary>
/// Class GetPhyscialPaths
/// </summary>
[Route("/Library/PhysicalPaths", "GET")]
[Api(Description = "Gets a list of physical paths from virtual folders")]
public class GetPhyscialPaths : IReturn<List<string>>
{
}
[Route("/Library/MediaFolders", "GET")]
[Api(Description = "Gets all user media folders.")]
public class GetMediaFolders : IReturn<ItemsResult>
{
}
/// <summary>
/// Class LibraryService
/// </summary>
public class LibraryService : BaseApiService
{
/// <summary>
/// The _item repo
/// </summary>
private readonly IItemRepository _itemRepo;
private readonly ILibraryManager _libraryManager;
private readonly IUserManager _userManager;
private readonly IUserDataManager _userDataManager;
private readonly IDtoService _dtoService;
private readonly IChannelManager _channelManager;
private readonly ISessionManager _sessionManager;
/// <summary>
/// Initializes a new instance of the <see cref="LibraryService" /> class.
/// </summary>
public LibraryService(IItemRepository itemRepo, ILibraryManager libraryManager, IUserManager userManager,
IDtoService dtoService, IUserDataManager userDataManager, IChannelManager channelManager, ISessionManager sessionManager)
{
_itemRepo = itemRepo;
_libraryManager = libraryManager;
_userManager = userManager;
_dtoService = dtoService;
_userDataManager = userDataManager;
_channelManager = channelManager;
_sessionManager = sessionManager;
}
public object Get(GetMediaFolders request)
{
var items = _libraryManager.GetUserRootFolder().Children.OrderBy(i => i.SortName).ToList();
// Get everything
var fields = Enum.GetNames(typeof(ItemFields))
.Select(i => (ItemFields)Enum.Parse(typeof(ItemFields), i, true))
.ToList();
var result = new ItemsResult
{
TotalRecordCount = items.Count,
Items = items.Select(i => _dtoService.GetBaseItemDto(i, fields)).ToArray()
};
return ToOptimizedResult(result);
}
public object Get(GetFile request)
{
var item = _dtoService.GetItemByDtoId(request.Id);
var locationType = item.LocationType;
if (locationType == LocationType.Remote || locationType == LocationType.Virtual)
{
throw new ArgumentException("This command cannot be used for remote or virtual items.");
}
if (Directory.Exists(item.Path))
{
throw new ArgumentException("This command cannot be used for directories.");
}
return ToStaticFileResult(item.Path);
}
public object Get(GetSubtitle request)
{
var subtitleStream = _itemRepo.GetMediaStreams(new MediaStreamQuery
{
Index = request.Index,
ItemId = new Guid(request.Id),
Type = MediaStreamType.Subtitle
}).FirstOrDefault();
if (subtitleStream == null)
{
throw new ResourceNotFoundException();
}
return ToStaticFileResult(subtitleStream.Path);
}
/// <summary>
/// Gets the specified request.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>System.Object.</returns>
public object Get(GetPhyscialPaths request)
{
var result = _libraryManager.RootFolder.Children
.SelectMany(c => c.PhysicalLocations)
.ToList();
return ToOptimizedSerializedResultUsingCache(result);
}
/// <summary>
/// Gets the specified request.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>System.Object.</returns>
public object Get(GetAncestors request)
{
var result = GetAncestors(request);
return ToOptimizedSerializedResultUsingCache(result);
}
/// <summary>
/// Gets the ancestors.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>Task{BaseItemDto[]}.</returns>
public List<BaseItemDto> GetAncestors(GetAncestors request)
{
var item = _dtoService.GetItemByDtoId(request.Id);
var baseItemDtos = new List<BaseItemDto>();
var user = request.UserId.HasValue ? _userManager.GetUserById(request.UserId.Value) : null;
// Get everything
var fields = Enum.GetNames(typeof(ItemFields))
.Select(i => (ItemFields)Enum.Parse(typeof(ItemFields), i, true))
.ToList();
BaseItem parent = item.Parent;
while (parent != null)
{
if (user != null)
{
parent = TranslateParentItem(parent, user);
}
baseItemDtos.Add(_dtoService.GetBaseItemDto(parent, fields, user));
parent = parent.Parent;
}
return baseItemDtos.ToList();
}
private BaseItem TranslateParentItem(BaseItem item, User user)
{
if (item.Parent is AggregateFolder)
{
return user.RootFolder.GetChildren(user, true).FirstOrDefault(i => i.PhysicalLocations.Contains(item.Path));
}
return item;
}
/// <summary>
/// Gets the specified request.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>System.Object.</returns>
public object Get(GetCriticReviews request)
{
var result = GetCriticReviews(request);
return ToOptimizedSerializedResultUsingCache(result);
}
/// <summary>
/// Gets the specified request.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>System.Object.</returns>
public object Get(GetItemCounts request)
{
var items = GetAllLibraryItems(request.UserId, _userManager, _libraryManager)
.Where(i => i.LocationType != LocationType.Virtual)
.ToList();
var filteredItems = request.UserId.HasValue ? FilterItems(items, request, request.UserId.Value).ToList() : items;
var albums = filteredItems.OfType<MusicAlbum>().ToList();
var episodes = filteredItems.OfType<Episode>().ToList();
var games = filteredItems.OfType<Game>().ToList();
var movies = filteredItems.OfType<Movie>().ToList();
var musicVideos = filteredItems.OfType<MusicVideo>().ToList();
var adultVideos = filteredItems.OfType<AdultVideo>().ToList();
var boxsets = filteredItems.OfType<BoxSet>().ToList();
var books = filteredItems.OfType<Book>().ToList();
var songs = filteredItems.OfType<Audio>().ToList();
var series = filteredItems.OfType<Series>().ToList();
var channelCount = 0;
try
{
channelCount = _channelManager.GetChannels(new ChannelQuery
{
UserId = request.UserId.HasValue ? request.UserId.Value.ToString("N") : null
}, CancellationToken.None).Result.TotalRecordCount;
}
catch (Exception ex)
{
Logger.ErrorException("Error getting channels", ex);
}
var counts = new ItemCounts
{
AlbumCount = albums.Count,
EpisodeCount = episodes.Count,
GameCount = games.Count,
GameSystemCount = filteredItems.OfType<GameSystem>().Count(),
MovieCount = movies.Count,
SeriesCount = series.Count,
SongCount = songs.Count,
TrailerCount = filteredItems.OfType<Trailer>().Count(),
MusicVideoCount = musicVideos.Count,
AdultVideoCount = adultVideos.Count,
BoxSetCount = boxsets.Count,
BookCount = books.Count,
UniqueTypes = items.Select(i => i.GetClientTypeName()).Distinct().ToList(),
ChannelCount = channelCount
};
return ToOptimizedSerializedResultUsingCache(counts);
}
private IEnumerable<T> FilterItems<T>(IEnumerable<T> items, GetItemCounts request, Guid userId)
where T : BaseItem
{
if (request.IsFavorite.HasValue)
{
var val = request.IsFavorite.Value;
items = items.Where(i => _userDataManager.GetUserData(userId, i.GetUserDataKey()).IsFavorite == val);
}
return items;
}
/// <summary>
/// Posts the specified request.
/// </summary>
/// <param name="request">The request.</param>
public async void Post(RefreshLibrary request)
{
try
{
await _libraryManager.ValidateMediaLibrary(new Progress<double>(), CancellationToken.None)
.ConfigureAwait(false);
}
catch (Exception ex)
{
Logger.ErrorException("Error refreshing library", ex);
}
}
/// <summary>
/// Deletes the specified request.
/// </summary>
/// <param name="request">The request.</param>
public void Delete(DeleteItem request)
{
var task = DeleteItem(request);
Task.WaitAll(task);
}
private Task DeleteItem(DeleteItem request)
{
var item = _dtoService.GetItemByDtoId(request.Id);
var session = GetSession(_sessionManager);
if (!session.UserId.HasValue || !_userManager.GetUserById(session.UserId.Value).Configuration.EnableContentDeletion)
{
throw new UnauthorizedAccessException("This operation requires a logged in user with delete access.");
}
return _libraryManager.DeleteItem(item);
}
/// <summary>
/// Gets the critic reviews async.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>Task{ItemReviewsResult}.</returns>
private QueryResult<ItemReview> GetCriticReviews(GetCriticReviews request)
{
var reviews = _itemRepo.GetCriticReviews(new Guid(request.Id));
var reviewsArray = reviews.ToArray();
var result = new QueryResult<ItemReview>
{
TotalRecordCount = reviewsArray.Length
};
if (request.StartIndex.HasValue)
{
reviewsArray = reviewsArray.Skip(request.StartIndex.Value).ToArray();
}
if (request.Limit.HasValue)
{
reviewsArray = reviewsArray.Take(request.Limit.Value).ToArray();
}
result.Items = reviewsArray;
return result;
}
public object Get(GetThemeMedia request)
{
var themeSongs = GetThemeSongs(new GetThemeSongs
{
InheritFromParent = request.InheritFromParent,
Id = request.Id,
UserId = request.UserId
});
var themeVideos = GetThemeVideos(new GetThemeVideos
{
InheritFromParent = request.InheritFromParent,
Id = request.Id,
UserId = request.UserId
});
return ToOptimizedSerializedResultUsingCache(new AllThemeMediaResult
{
ThemeSongsResult = themeSongs,
ThemeVideosResult = themeVideos,
SoundtrackSongsResult = GetSoundtrackSongs(request.Id, request.UserId, request.InheritFromParent)
});
}
/// <summary>
/// Gets the specified request.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>System.Object.</returns>
public object Get(GetThemeSongs request)
{
var result = GetThemeSongs(request);
return ToOptimizedSerializedResultUsingCache(result);
}
private ThemeMediaResult GetThemeSongs(GetThemeSongs request)
{
var user = request.UserId.HasValue ? _userManager.GetUserById(request.UserId.Value) : null;
var item = string.IsNullOrEmpty(request.Id)
? (request.UserId.HasValue
? user.RootFolder
: (Folder)_libraryManager.RootFolder)
: _dtoService.GetItemByDtoId(request.Id, request.UserId);
var originalItem = item;
while (GetThemeSongIds(item).Count == 0 && request.InheritFromParent && item.Parent != null)
{
item = item.Parent;
}
// Get everything
var fields = Enum.GetNames(typeof(ItemFields))
.Select(i => (ItemFields)Enum.Parse(typeof(ItemFields), i, true))
.ToList();
var themeSongIds = GetThemeSongIds(item);
if (themeSongIds.Count == 0 && request.InheritFromParent)
{
var album = originalItem as MusicAlbum;
if (album != null)
{
var linkedItemWithThemes = album.SoundtrackIds
.Select(i => _libraryManager.GetItemById(i))
.FirstOrDefault(i => GetThemeSongIds(i).Count > 0);
if (linkedItemWithThemes != null)
{
themeSongIds = GetThemeSongIds(linkedItemWithThemes);
item = linkedItemWithThemes;
}
}
}
var dtos = themeSongIds.Select(_libraryManager.GetItemById)
.OrderBy(i => i.SortName)
.Select(i => _dtoService.GetBaseItemDto(i, fields, user, item));
var items = dtos.ToArray();
return new ThemeMediaResult
{
Items = items,
TotalRecordCount = items.Length,
OwnerId = _dtoService.GetDtoId(item)
};
}
/// <summary>
/// Gets the specified request.
/// </summary>
/// <param name="request">The request.</param>
/// <returns>System.Object.</returns>
public object Get(GetThemeVideos request)
{
var result = GetThemeVideos(request);
return ToOptimizedSerializedResultUsingCache(result);
}
public ThemeMediaResult GetThemeVideos(GetThemeVideos request)
{
var user = request.UserId.HasValue ? _userManager.GetUserById(request.UserId.Value) : null;
var item = string.IsNullOrEmpty(request.Id)
? (request.UserId.HasValue
? user.RootFolder
: (Folder)_libraryManager.RootFolder)
: _dtoService.GetItemByDtoId(request.Id, request.UserId);
var originalItem = item;
while (GetThemeVideoIds(item).Count == 0 && request.InheritFromParent && item.Parent != null)
{
item = item.Parent;
}
// Get everything
var fields = Enum.GetNames(typeof(ItemFields))
.Select(i => (ItemFields)Enum.Parse(typeof(ItemFields), i, true))
.ToList();
var themeVideoIds = GetThemeVideoIds(item);
if (themeVideoIds.Count == 0 && request.InheritFromParent)
{
var album = originalItem as MusicAlbum;
if (album == null)
{
album = originalItem.Parents.OfType<MusicAlbum>().FirstOrDefault();
}
if (album != null)
{
var linkedItemWithThemes = album.SoundtrackIds
.Select(i => _libraryManager.GetItemById(i))
.FirstOrDefault(i => GetThemeVideoIds(i).Count > 0);
if (linkedItemWithThemes != null)
{
themeVideoIds = GetThemeVideoIds(linkedItemWithThemes);
item = linkedItemWithThemes;
}
}
}
var dtos = themeVideoIds.Select(_libraryManager.GetItemById)
.OrderBy(i => i.SortName)
.Select(i => _dtoService.GetBaseItemDto(i, fields, user, item));
var items = dtos.ToArray();
return new ThemeMediaResult
{
Items = items,
TotalRecordCount = items.Length,
OwnerId = _dtoService.GetDtoId(item)
};
}
private List<Guid> GetThemeVideoIds(BaseItem item)
{
var i = item as IHasThemeMedia;
if (i != null)
{
return i.ThemeVideoIds;
}
return new List<Guid>();
}
private List<Guid> GetThemeSongIds(BaseItem item)
{
var i = item as IHasThemeMedia;
if (i != null)
{
return i.ThemeSongIds;
}
return new List<Guid>();
}
private readonly CultureInfo _usCulture = new CultureInfo("en-US");
public object Get(GetYearIndex request)
{
IEnumerable<BaseItem> items = GetAllLibraryItems(request.UserId, _userManager, _libraryManager);
if (!string.IsNullOrEmpty(request.IncludeItemTypes))
{
var vals = request.IncludeItemTypes.Split(',');
items = items.Where(f => vals.Contains(f.GetType().Name, StringComparer.OrdinalIgnoreCase));
}
var lookup = items
.ToLookup(i => i.ProductionYear ?? -1)
.OrderBy(i => i.Key)
.Select(i => new ItemIndex
{
ItemCount = i.Count(),
Name = i.Key == -1 ? string.Empty : i.Key.ToString(_usCulture)
})
.ToList();
return ToOptimizedSerializedResultUsingCache(lookup);
}
public ThemeMediaResult GetSoundtrackSongs(string id, Guid? userId, bool inheritFromParent)
{
var user = userId.HasValue ? _userManager.GetUserById(userId.Value) : null;
var item = string.IsNullOrEmpty(id)
? (userId.HasValue
? user.RootFolder
: (Folder)_libraryManager.RootFolder)
: _dtoService.GetItemByDtoId(id, userId);
// Get everything
var fields = Enum.GetNames(typeof(ItemFields))
.Select(i => (ItemFields)Enum.Parse(typeof(ItemFields), i, true))
.ToList();
var dtos = GetSoundtrackSongIds(item, inheritFromParent)
.Select(_libraryManager.GetItemById)
.OfType<MusicAlbum>()
.SelectMany(i => i.RecursiveChildren)
.OfType<Audio>()
.OrderBy(i => i.SortName)
.Select(i => _dtoService.GetBaseItemDto(i, fields, user, item));
var items = dtos.ToArray();
return new ThemeMediaResult
{
Items = items,
TotalRecordCount = items.Length,
OwnerId = _dtoService.GetDtoId(item)
};
}
private IEnumerable<Guid> GetSoundtrackSongIds(BaseItem item, bool inherit)
{
var hasSoundtracks = item as IHasSoundtracks;
if (hasSoundtracks != null)
{
return hasSoundtracks.SoundtrackIds;
}
if (!inherit)
{
return null;
}
hasSoundtracks = item.Parents.OfType<IHasSoundtracks>().FirstOrDefault();
return hasSoundtracks != null ? hasSoundtracks.SoundtrackIds : new List<Guid>();
}
}
}