jellyfin/Emby.Server.Implementations/ScheduledTasks/Tasks/ChapterImagesTask.cs
2021-07-06 00:01:33 +02:00

177 lines
5.8 KiB
C#

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Common.Configuration;
using MediaBrowser.Controller.Dto;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.MediaEncoding;
using MediaBrowser.Controller.Persistence;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Globalization;
using MediaBrowser.Model.IO;
using MediaBrowser.Model.Tasks;
namespace Emby.Server.Implementations.ScheduledTasks
{
/// <summary>
/// Class ChapterImagesTask.
/// </summary>
public class ChapterImagesTask : IScheduledTask
{
/// <summary>
/// The _library manager.
/// </summary>
private readonly ILibraryManager _libraryManager;
private readonly IItemRepository _itemRepo;
private readonly IApplicationPaths _appPaths;
private readonly IEncodingManager _encodingManager;
private readonly IFileSystem _fileSystem;
private readonly ILocalizationManager _localization;
/// <summary>
/// Initializes a new instance of the <see cref="ChapterImagesTask" /> class.
/// </summary>
public ChapterImagesTask(
ILibraryManager libraryManager,
IItemRepository itemRepo,
IApplicationPaths appPaths,
IEncodingManager encodingManager,
IFileSystem fileSystem,
ILocalizationManager localization)
{
_libraryManager = libraryManager;
_itemRepo = itemRepo;
_appPaths = appPaths;
_encodingManager = encodingManager;
_fileSystem = fileSystem;
_localization = localization;
}
/// <inheritdoc />
public string Name => _localization.GetLocalizedString("TaskRefreshChapterImages");
/// <inheritdoc />
public string Description => _localization.GetLocalizedString("TaskRefreshChapterImagesDescription");
/// <inheritdoc />
public string Category => _localization.GetLocalizedString("TasksLibraryCategory");
/// <inheritdoc />
public string Key => "RefreshChapterImages";
/// <inheritdoc />
public IEnumerable<TaskTriggerInfo> GetDefaultTriggers()
{
return new[]
{
new TaskTriggerInfo
{
Type = TaskTriggerInfo.TriggerDaily,
TimeOfDayTicks = TimeSpan.FromHours(2).Ticks,
MaxRuntimeTicks = TimeSpan.FromHours(4).Ticks
}
};
}
/// <summary>
/// Returns the task to be executed.
/// </summary>
/// <param name="cancellationToken">The cancellation token.</param>
/// <param name="progress">The progress.</param>
/// <returns>Task.</returns>
public async Task Execute(CancellationToken cancellationToken, IProgress<double> progress)
{
var videos = _libraryManager.GetItemList(new InternalItemsQuery
{
MediaTypes = new[] { MediaType.Video },
IsFolder = false,
Recursive = true,
DtoOptions = new DtoOptions(false)
{
EnableImages = false
},
SourceTypes = new SourceType[] { SourceType.Library },
HasChapterImages = false,
IsVirtualItem = false
})
.OfType<Video>()
.ToList();
var numComplete = 0;
var failHistoryPath = Path.Combine(_appPaths.CachePath, "chapter-failures.txt");
List<string> previouslyFailedImages;
if (File.Exists(failHistoryPath))
{
try
{
previouslyFailedImages = File.ReadAllText(failHistoryPath)
.Split('|', StringSplitOptions.RemoveEmptyEntries)
.ToList();
}
catch (IOException)
{
previouslyFailedImages = new List<string>();
}
}
else
{
previouslyFailedImages = new List<string>();
}
var directoryService = new DirectoryService(_fileSystem);
foreach (var video in videos)
{
cancellationToken.ThrowIfCancellationRequested();
var key = video.Path + video.DateModified.Ticks;
var extract = !previouslyFailedImages.Contains(key, StringComparer.OrdinalIgnoreCase);
try
{
var chapters = _itemRepo.GetChapters(video);
var success = await _encodingManager.RefreshChapterImages(video, directoryService, chapters, extract, true, cancellationToken).ConfigureAwait(false);
if (!success)
{
previouslyFailedImages.Add(key);
var parentPath = Path.GetDirectoryName(failHistoryPath);
if (parentPath != null)
{
Directory.CreateDirectory(parentPath);
}
string text = string.Join('|', previouslyFailedImages);
File.WriteAllText(failHistoryPath, text);
}
numComplete++;
double percent = numComplete;
percent /= videos.Count;
progress.Report(100 * percent);
}
catch (ObjectDisposedException)
{
// TODO Investigate and properly fix.
break;
}
}
}
}
}