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using MediaBrowser.Common.IO;
using MediaBrowser.Controller.Collections;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Movies;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Providers;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Server.Implementations.Collections
{
public class CollectionManager : ICollectionManager
{
private readonly ILibraryManager _libraryManager;
private readonly IFileSystem _fileSystem;
private readonly ILibraryMonitor _iLibraryMonitor;
public CollectionManager(ILibraryManager libraryManager, IFileSystem fileSystem, ILibraryMonitor iLibraryMonitor)
{
_libraryManager = libraryManager;
_fileSystem = fileSystem;
_iLibraryMonitor = iLibraryMonitor;
}
public async Task CreateCollection(CollectionCreationOptions options)
{
var name = options.Name;
var folderName = _fileSystem.GetValidFilename(name);
var parentFolder = GetParentFolder(options.ParentId);
if (parentFolder == null)
{
throw new ArgumentException();
}
var path = Path.Combine(parentFolder.Path, folderName);
_iLibraryMonitor.ReportFileSystemChangeBeginning(path);
try
{
Directory.CreateDirectory(path);
var collection = new BoxSet
{
Name = name,
Parent = parentFolder,
DisplayMediaType = "Collection",
Path = path,
DontFetchMeta = options.IsLocked
};
await parentFolder.AddChild(collection, CancellationToken.None).ConfigureAwait(false);
await collection.RefreshMetadata(new MetadataRefreshOptions(), CancellationToken.None)
.ConfigureAwait(false);
}
finally
{
// Refresh handled internally
_iLibraryMonitor.ReportFileSystemChangeComplete(path, false);
}
}
private Folder GetParentFolder(Guid? parentId)
{
if (parentId.HasValue)
{
if (parentId.Value == Guid.Empty)
{
throw new ArgumentNullException("parentId");
}
return _libraryManager.GetItemById(parentId.Value) as Folder;
}
return _libraryManager.RootFolder.Children.OfType<ManualCollectionsFolder>().FirstOrDefault() ??
_libraryManager.RootFolder.GetHiddenChildren().OfType<ManualCollectionsFolder>().FirstOrDefault();
}
public async Task AddToCollection(Guid collectionId, IEnumerable<Guid> ids)
{
var collection = _libraryManager.GetItemById(collectionId) as BoxSet;
if (collection == null)
{
throw new ArgumentException("No collection exists with the supplied Id");
}
var list = new List<LinkedChild>();
foreach (var itemId in ids)
{
var item = _libraryManager.GetItemById(itemId);
if (item == null)
{
throw new ArgumentException("No item exists with the supplied Id");
}
if (collection.LinkedChildren.Any(i => i.ItemId.HasValue && i.ItemId == itemId))
{
throw new ArgumentException("Item already exists in collection");
}
list.Add(new LinkedChild
{
ItemName = item.Name,
ItemYear = item.ProductionYear,
ItemType = item.GetType().Name,
Type = LinkedChildType.Manual
});
}
collection.LinkedChildren.AddRange(list);
await collection.UpdateToRepository(ItemUpdateType.MetadataEdit, CancellationToken.None).ConfigureAwait(false);
await collection.RefreshMetadata(CancellationToken.None).ConfigureAwait(false);
}
public async Task RemoveFromCollection(Guid collectionId, IEnumerable<Guid> itemIds)
{
var collection = _libraryManager.GetItemById(collectionId) as BoxSet;
if (collection == null)
{
throw new ArgumentException("No collection exists with the supplied Id");
}
var list = new List<LinkedChild>();
foreach (var itemId in itemIds)
{
var child = collection.LinkedChildren.FirstOrDefault(i => i.ItemId.HasValue && i.ItemId.Value == itemId);
if (child == null)
{
throw new ArgumentException("No collection title exists with the supplied Id");
}
list.Add(child);
}
var shortcutFiles = Directory
.EnumerateFiles(collection.Path, "*", SearchOption.TopDirectoryOnly)
.Where(i => _fileSystem.IsShortcut(i))
.ToList();
var shortcutFilesToDelete = list.Where(child => !string.IsNullOrWhiteSpace(child.Path) && child.Type == LinkedChildType.Shortcut)
.Select(child => shortcutFiles.FirstOrDefault(i => string.Equals(child.Path, _fileSystem.ResolveShortcut(i), StringComparison.OrdinalIgnoreCase)))
.Where(i => !string.IsNullOrWhiteSpace(i))
.ToList();
foreach (var file in shortcutFilesToDelete)
{
_iLibraryMonitor.ReportFileSystemChangeBeginning(file);
}
try
{
foreach (var file in shortcutFilesToDelete)
{
File.Delete(file);
}
foreach (var child in list)
{
collection.LinkedChildren.Remove(child);
}
}
finally
{
foreach (var file in shortcutFilesToDelete)
{
_iLibraryMonitor.ReportFileSystemChangeComplete(file, false);
}
}
await collection.UpdateToRepository(ItemUpdateType.MetadataEdit, CancellationToken.None).ConfigureAwait(false);
await collection.RefreshMetadata(CancellationToken.None).ConfigureAwait(false);
}
}
}
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