jellyfin-server/MediaBrowser.Server.Implementations/Collections/CollectionManager.cs
2014-12-12 22:56:30 -05:00

317 lines
11 KiB
C#

using MediaBrowser.Common.Events;
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 MediaBrowser.Model.Logging;
using MoreLinq;
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;
private readonly ILogger _logger;
public event EventHandler<CollectionCreatedEventArgs> CollectionCreated;
public event EventHandler<CollectionModifiedEventArgs> ItemsAddedToCollection;
public event EventHandler<CollectionModifiedEventArgs> ItemsRemovedFromCollection;
public CollectionManager(ILibraryManager libraryManager, IFileSystem fileSystem, ILibraryMonitor iLibraryMonitor, ILogger logger)
{
_libraryManager = libraryManager;
_fileSystem = fileSystem;
_iLibraryMonitor = iLibraryMonitor;
_logger = logger;
}
public Folder GetCollectionsFolder(string userId)
{
return _libraryManager.RootFolder.Children.OfType<ManualCollectionsFolder>()
.FirstOrDefault();
}
public async Task<BoxSet> CreateCollection(CollectionCreationOptions options)
{
var name = options.Name;
// Need to use the [boxset] suffix
// If internet metadata is not found, or if xml saving is off there will be no collection.xml
// This could cause it to get re-resolved as a plain folder
var folderName = _fileSystem.GetValidFilename(name) + " [boxset]";
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,
IsLocked = options.IsLocked,
ProviderIds = options.ProviderIds,
Shares = options.UserIds.Select(i => new Share
{
UserId = i.ToString("N")
}).ToList()
};
await parentFolder.AddChild(collection, CancellationToken.None).ConfigureAwait(false);
await collection.RefreshMetadata(new MetadataRefreshOptions(new DirectoryService()), CancellationToken.None)
.ConfigureAwait(false);
if (options.ItemIdList.Count > 0)
{
await AddToCollection(collection.Id, options.ItemIdList, false);
}
EventHelper.FireEventIfNotNull(CollectionCreated, this, new CollectionCreatedEventArgs
{
Collection = collection,
Options = options
}, _logger);
return collection;
}
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");
}
var folder = _libraryManager.GetItemById(parentId.Value) as Folder;
// Find an actual physical folder
if (folder is CollectionFolder)
{
var child = _libraryManager.RootFolder.Children.OfType<Folder>()
.FirstOrDefault(i => folder.PhysicalLocations.Contains(i.Path, StringComparer.OrdinalIgnoreCase));
if (child != null)
{
return child;
}
}
}
return GetCollectionsFolder(string.Empty);
}
public Task AddToCollection(Guid collectionId, IEnumerable<Guid> ids)
{
return AddToCollection(collectionId, ids, true);
}
private async Task AddToCollection(Guid collectionId, IEnumerable<Guid> ids, bool fireEvent)
{
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>();
var itemList = new List<BaseItem>();
var currentLinkedChildren = collection.GetLinkedChildren().ToList();
foreach (var itemId in ids)
{
var item = _libraryManager.GetItemById(itemId);
if (item == null)
{
throw new ArgumentException("No item exists with the supplied Id");
}
itemList.Add(item);
if (currentLinkedChildren.Any(i => i.Id == itemId))
{
throw new ArgumentException("Item already exists in collection");
}
list.Add(LinkedChild.Create(item));
var supportsGrouping = item as ISupportsBoxSetGrouping;
if (supportsGrouping != null)
{
var boxsetIdList = supportsGrouping.BoxSetIdList.ToList();
if (!boxsetIdList.Contains(collectionId))
{
boxsetIdList.Add(collectionId);
}
supportsGrouping.BoxSetIdList = boxsetIdList;
}
}
collection.LinkedChildren.AddRange(list);
await collection.UpdateToRepository(ItemUpdateType.MetadataEdit, CancellationToken.None).ConfigureAwait(false);
await collection.RefreshMetadata(CancellationToken.None).ConfigureAwait(false);
if (fireEvent)
{
EventHelper.FireEventIfNotNull(ItemsAddedToCollection, this, new CollectionModifiedEventArgs
{
Collection = collection,
ItemsChanged = itemList
}, _logger);
}
}
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>();
var itemList = new List<BaseItem>();
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 childItem = _libraryManager.GetItemById(itemId);
if (childItem != null)
{
itemList.Add(childItem);
}
var supportsGrouping = childItem as ISupportsBoxSetGrouping;
if (supportsGrouping != null)
{
var boxsetIdList = supportsGrouping.BoxSetIdList.ToList();
boxsetIdList.Remove(collectionId);
supportsGrouping.BoxSetIdList = boxsetIdList;
}
}
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);
EventHelper.FireEventIfNotNull(ItemsRemovedFromCollection, this, new CollectionModifiedEventArgs
{
Collection = collection,
ItemsChanged = itemList
}, _logger);
}
public IEnumerable<BaseItem> CollapseItemsWithinBoxSets(IEnumerable<BaseItem> items, User user)
{
var itemsToCollapse = new List<ISupportsBoxSetGrouping>();
var boxsets = new List<BaseItem>();
var list = items.ToList();
foreach (var item in list.OfType<ISupportsBoxSetGrouping>())
{
var currentBoxSets = item.BoxSetIdList
.Select(i => _libraryManager.GetItemById(i))
.Where(i => i != null && i.IsVisible(user))
.ToList();
if (currentBoxSets.Count > 0)
{
itemsToCollapse.Add(item);
boxsets.AddRange(currentBoxSets);
}
}
return list
.Except(itemsToCollapse.Cast<BaseItem>())
.Concat(boxsets)
.DistinctBy(i => i.Id);
}
}
}