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using System;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using System.Collections.Generic;
using MediaBrowser.Controller.Collections;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Movies;
using MediaBrowser.Controller.Library;
using MediaBrowser.Model.Querying;
using Jellyfin.Data.Enums;
using Microsoft.Extensions.Logging;
using System.Diagnostics;
namespace Emby.Server.Implementations.Library.Validators
{
/// <summary>
/// Class CollectionPostScanTask.
/// </summary>
public class CollectionPostScanTask : ILibraryPostScanTask
{
private readonly ILibraryManager _libraryManager;
private readonly ICollectionManager _collectionManager;
private readonly ILogger<CollectionPostScanTask> _logger;
/// <summary>
/// Initializes a new instance of the <see cref="CollectionPostScanTask" /> class.
/// </summary>
/// <param name="libraryManager">The library manager.</param>
/// <param name="collectionManager">The collection manager.</param>
/// <param name="logger">The logger.</param>
public CollectionPostScanTask(
ILibraryManager libraryManager,
ICollectionManager collectionManager,
ILogger<CollectionPostScanTask> logger)
{
_libraryManager = libraryManager;
_collectionManager = collectionManager;
_logger = logger;
}
/// <summary>
/// Runs the specified progress.
/// </summary>
/// <param name="progress">The progress.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public async Task Run(IProgress<double> progress, CancellationToken cancellationToken)
{
var movies = _libraryManager.GetItemList(new InternalItemsQuery
{
IncludeItemTypes = new[] { nameof(Movie) },
IsVirtualItem = false,
OrderBy = new[] { (ItemSortBy.SortName, SortOrder.Ascending) },
Recursive = true
});
var boxSets = _libraryManager.GetItemList(new InternalItemsQuery
{
IncludeItemTypes = new[] { nameof(BoxSet) },
CollapseBoxSetItems = false,
Recursive = true
});
var numComplete = 0;
var count = movies.Count;
var collectionNameMoviesMap = new Dictionary<string, List<Movie>>();
foreach (var m in movies)
{
if (m is Movie movie && !string.IsNullOrEmpty(movie.CollectionName))
{
if (collectionNameMoviesMap.TryGetValue(movie.CollectionName, out var movieList))
{
if (!movieList.Any(m => m.Id == movie.Id))
{
movieList.Add(movie);
}
}
else
{
collectionNameMoviesMap[movie.CollectionName] = new List<Movie> { movie };
}
}
numComplete++;
double percent = numComplete;
percent /= count * 2;
percent *= 100;
progress.Report(percent);
}
foreach (var (collectionName, movieList) in collectionNameMoviesMap)
{
try
{
var boxSet = boxSets.FirstOrDefault(b => b?.Name == collectionName) as BoxSet;
if (boxSet == null)
{
// won't automatically create collection if only one movie in it
if (movieList.Count >= 2)
{
var movieIds = FliterMoviesByOption(movieList);
if (movieIds.Count >= 2) {
// at least 2 movies have AutoCollection option enable
boxSet = await _collectionManager.CreateCollectionAsync(new CollectionCreationOptions
{
Name = collectionName,
IsLocked = true
});
await _collectionManager.AddToCollectionAsync(boxSet.Id, movieIds);
}
}
}
else
{
var movieIds = FliterMoviesByOption(movieList);
await _collectionManager.AddToCollectionAsync(boxSet.Id, movieIds);
}
numComplete++;
double percent = numComplete;
percent /= count * 2;
percent *= 100;
progress.Report(percent);
}
catch (Exception ex)
{
_logger.LogError(ex, "Error refreshing {CollectionName} with {@MovieIds}", collectionName, movieList);
}
}
progress.Report(100);
}
private List<Guid> FliterMoviesByOption(List<Movie> movieList) {
List<Guid> movieIds = new List<Guid>();
foreach (var movie in movieList)
{
if (_libraryManager.GetLibraryOptions(movie).AutoCollection)
{
movieIds.Add(movie.Id);
}
}
return movieIds;
}
}
}
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