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using MediaBrowser.Controller.Resolvers;
using MediaBrowser.Model.Entities;
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.Serialization;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Controller.Entities
{
/// <summary>
/// Class Video
/// </summary>
public class Video : BaseItem, IHasMediaStreams
{
public bool IsMultiPart { get; set; }
public List<Guid> AdditionalPartIds { get; set; }
public Video()
{
MediaStreams = new List<MediaStream>();
PlayableStreamFileNames = new List<string>();
AdditionalPartIds = new List<Guid>();
}
/// <summary>
/// Gets or sets the type of the video.
/// </summary>
/// <value>The type of the video.</value>
public VideoType VideoType { get; set; }
/// <summary>
/// Gets or sets the type of the iso.
/// </summary>
/// <value>The type of the iso.</value>
public IsoType? IsoType { get; set; }
/// <summary>
/// Gets or sets the format of the video.
/// </summary>
/// <value>The format of the video.</value>
public VideoFormat VideoFormat { get; set; }
/// <summary>
/// Gets or sets the media streams.
/// </summary>
/// <value>The media streams.</value>
public List<MediaStream> MediaStreams { get; set; }
/// <summary>
/// If the video is a folder-rip, this will hold the file list for the largest playlist
/// </summary>
public List<string> PlayableStreamFileNames { get; set; }
/// <summary>
/// Gets the playable stream files.
/// </summary>
/// <returns>List{System.String}.</returns>
public List<string> GetPlayableStreamFiles()
{
return GetPlayableStreamFiles(Path);
}
/// <summary>
/// Gets the playable stream files.
/// </summary>
/// <param name="rootPath">The root path.</param>
/// <returns>List{System.String}.</returns>
public List<string> GetPlayableStreamFiles(string rootPath)
{
if (PlayableStreamFileNames == null)
{
return null;
}
var allFiles = Directory.EnumerateFiles(rootPath, "*", SearchOption.AllDirectories).ToList();
return PlayableStreamFileNames.Select(name => allFiles.FirstOrDefault(f => string.Equals(System.IO.Path.GetFileName(f), name, StringComparison.OrdinalIgnoreCase)))
.Where(f => !string.IsNullOrEmpty(f))
.ToList();
}
/// <summary>
/// The default video stream for this video. Use this to determine media info for this item.
/// </summary>
/// <value>The default video stream.</value>
[IgnoreDataMember]
public MediaStream DefaultVideoStream
{
get { return MediaStreams != null ? MediaStreams.FirstOrDefault(s => s.Type == MediaStreamType.Video) : null; }
}
/// <summary>
/// Gets a value indicating whether [is3 D].
/// </summary>
/// <value><c>true</c> if [is3 D]; otherwise, <c>false</c>.</value>
[IgnoreDataMember]
public bool Is3D
{
get { return VideoFormat > 0; }
}
/// <summary>
/// Gets the type of the media.
/// </summary>
/// <value>The type of the media.</value>
public override string MediaType
{
get
{
return Model.Entities.MediaType.Video;
}
}
/// <summary>
/// Overrides the base implementation to refresh metadata for local trailers
/// </summary>
/// <param name="cancellationToken">The cancellation token.</param>
/// <param name="forceSave">if set to <c>true</c> [is new item].</param>
/// <param name="forceRefresh">if set to <c>true</c> [force].</param>
/// <param name="allowSlowProviders">if set to <c>true</c> [allow slow providers].</param>
/// <param name="resetResolveArgs">The reset resolve args.</param>
/// <returns>true if a provider reports we changed</returns>
public override async Task<bool> RefreshMetadata(CancellationToken cancellationToken, bool forceSave = false, bool forceRefresh = false, bool allowSlowProviders = true, bool resetResolveArgs = true)
{
// Kick off a task to refresh the main item
var result = await base.RefreshMetadata(cancellationToken, forceSave, forceRefresh, allowSlowProviders, resetResolveArgs).ConfigureAwait(false);
var additionalPartsChanged = false;
// Must have a parent to have additional parts
// In other words, it must be part of the Parent/Child tree
// The additional parts won't have additional parts themselves
if (IsMultiPart && LocationType == LocationType.FileSystem && Parent != null)
{
try
{
additionalPartsChanged = await RefreshAdditionalParts(cancellationToken, forceSave, forceRefresh, allowSlowProviders).ConfigureAwait(false);
}
catch (IOException ex)
{
Logger.ErrorException("Error loading additional parts for {0}.", ex, Name);
}
}
return additionalPartsChanged || result;
}
/// <summary>
/// Refreshes the additional parts.
/// </summary>
/// <param name="cancellationToken">The cancellation token.</param>
/// <param name="forceSave">if set to <c>true</c> [force save].</param>
/// <param name="forceRefresh">if set to <c>true</c> [force refresh].</param>
/// <param name="allowSlowProviders">if set to <c>true</c> [allow slow providers].</param>
/// <returns>Task{System.Boolean}.</returns>
private async Task<bool> RefreshAdditionalParts(CancellationToken cancellationToken, bool forceSave = false, bool forceRefresh = false, bool allowSlowProviders = true)
{
var newItems = LoadAdditionalParts().ToList();
var newItemIds = newItems.Select(i => i.Id).ToList();
var itemsChanged = !AdditionalPartIds.SequenceEqual(newItemIds);
var tasks = newItems.Select(i => i.RefreshMetadata(cancellationToken, forceSave, forceRefresh, allowSlowProviders));
var results = await Task.WhenAll(tasks).ConfigureAwait(false);
AdditionalPartIds = newItemIds;
return itemsChanged || results.Contains(true);
}
/// <summary>
/// Loads the additional parts.
/// </summary>
/// <returns>IEnumerable{Video}.</returns>
private IEnumerable<Video> LoadAdditionalParts()
{
IEnumerable<FileSystemInfo> files;
if (VideoType == VideoType.BluRay || VideoType == VideoType.Dvd)
{
files = new DirectoryInfo(System.IO.Path.GetDirectoryName(Path))
.EnumerateDirectories()
.Where(i => !string.Equals(i.FullName, Path, StringComparison.OrdinalIgnoreCase) && EntityResolutionHelper.IsMultiPartFile(i.Name));
}
else
{
files = ResolveArgs.FileSystemChildren.Where(i =>
{
if ((i.Attributes & FileAttributes.Directory) == FileAttributes.Directory)
{
return false;
}
return !string.Equals(i.FullName, Path, StringComparison.OrdinalIgnoreCase) && EntityResolutionHelper.IsVideoFile(i.FullName) && EntityResolutionHelper.IsMultiPartFile(i.Name);
});
}
return LibraryManager.ResolvePaths<Video>(files, null).Select(video =>
{
// Try to retrieve it from the db. If we don't find it, use the resolved version
var dbItem = LibraryManager.RetrieveItem(video.Id, typeof(Video)) as Video;
if (dbItem != null)
{
dbItem.ResolveArgs = video.ResolveArgs;
video = dbItem;
}
return video;
}).ToList();
}
}
}
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