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using System;
using System.Collections.Generic;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
using Jellyfin.Data.Enums;
using MediaBrowser.Controller;
using MediaBrowser.Controller.Dto;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Model.Globalization;
using MediaBrowser.Model.Tasks;
namespace Emby.Server.Implementations.ScheduledTasks.Tasks;
/// <summary>
/// Task to obtain media segments.
/// </summary>
public class MediaSegmentExtractionTask : IScheduledTask
{
/// <summary>
/// The library manager.
/// </summary>
private readonly ILibraryManager _libraryManager;
private readonly ILocalizationManager _localization;
private readonly IMediaSegmentManager _mediaSegmentManager;
private static readonly BaseItemKind[] _itemTypes = [BaseItemKind.Episode, BaseItemKind.Movie, BaseItemKind.Audio, BaseItemKind.AudioBook];
/// <summary>
/// Initializes a new instance of the <see cref="MediaSegmentExtractionTask" /> class.
/// </summary>
/// <param name="libraryManager">The library manager.</param>
/// <param name="localization">The localization manager.</param>
/// <param name="mediaSegmentManager">The segment manager.</param>
public MediaSegmentExtractionTask(ILibraryManager libraryManager, ILocalizationManager localization, IMediaSegmentManager mediaSegmentManager)
{
_libraryManager = libraryManager;
_localization = localization;
_mediaSegmentManager = mediaSegmentManager;
}
/// <inheritdoc/>
public string Name => _localization.GetLocalizedString("TaskExtractMediaSegments");
/// <inheritdoc/>
public string Description => _localization.GetLocalizedString("TaskExtractMediaSegmentsDescription");
/// <inheritdoc/>
public string Category => _localization.GetLocalizedString("TasksLibraryCategory");
/// <inheritdoc/>
public string Key => "TaskExtractMediaSegments";
/// <inheritdoc/>
public async Task ExecuteAsync(IProgress<double> progress, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
progress.Report(0);
var pagesize = 100;
var query = new InternalItemsQuery
{
MediaTypes = [MediaType.Video, MediaType.Audio],
IsVirtualItem = false,
IncludeItemTypes = _itemTypes,
DtoOptions = new DtoOptions(true),
SourceTypes = [SourceType.Library],
Recursive = true,
Limit = pagesize
};
var numberOfVideos = _libraryManager.GetCount(query);
var startIndex = 0;
var numComplete = 0;
while (startIndex < numberOfVideos)
{
query.StartIndex = startIndex;
var baseItems = _libraryManager.GetItemList(query);
var currentPageCount = baseItems.Count;
// TODO parallelize with Parallel.ForEach?
for (var i = 0; i < currentPageCount; i++)
{
cancellationToken.ThrowIfCancellationRequested();
var item = baseItems[i];
// Only local files supported
if (item.IsFileProtocol && File.Exists(item.Path))
{
await _mediaSegmentManager.RunSegmentPluginProviders(item, false, cancellationToken).ConfigureAwait(false);
}
// Update progress
numComplete++;
double percent = (double)numComplete / numberOfVideos;
progress.Report(100 * percent);
}
startIndex += pagesize;
}
progress.Report(100);
}
/// <inheritdoc/>
public IEnumerable<TaskTriggerInfo> GetDefaultTriggers()
{
yield return new TaskTriggerInfo
{
Type = TaskTriggerInfoType.IntervalTrigger,
IntervalTicks = TimeSpan.FromHours(12).Ticks
};
}
}
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