jellyfin/Emby.Server.Implementations/Collections/CollectionManager.cs
2017-08-19 15:43:35 -04:00

307 lines
11 KiB
C#

using MediaBrowser.Common.Events;
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 System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Model.IO;
using MediaBrowser.Model.Extensions;
namespace Emby.Server.Implementations.Collections
{
public class CollectionManager : ICollectionManager
{
private readonly ILibraryManager _libraryManager;
private readonly IFileSystem _fileSystem;
private readonly ILibraryMonitor _iLibraryMonitor;
private readonly ILogger _logger;
private readonly IProviderManager _providerManager;
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, IProviderManager providerManager)
{
_libraryManager = libraryManager;
_fileSystem = fileSystem;
_iLibraryMonitor = iLibraryMonitor;
_logger = logger;
_providerManager = providerManager;
}
public Folder GetCollectionsFolder(string userId)
{
return _libraryManager.RootFolder.Children.OfType<ManualCollectionsFolder>()
.FirstOrDefault() ?? _libraryManager.GetUserRootFolder().Children.OfType<ManualCollectionsFolder>()
.FirstOrDefault();
}
public IEnumerable<BoxSet> GetCollections(User user)
{
var folder = GetCollectionsFolder(user.Id.ToString("N"));
return folder == null ?
new List<BoxSet>() :
folder.GetChildren(user, true).OfType<BoxSet>();
}
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
{
_fileSystem.CreateDirectory(path);
var collection = new BoxSet
{
Name = name,
Path = path,
IsLocked = options.IsLocked,
ProviderIds = options.ProviderIds,
Shares = options.UserIds.Select(i => new Share
{
UserId = i,
CanEdit = true
}).ToList()
};
await parentFolder.AddChild(collection, CancellationToken.None).ConfigureAwait(false);
if (options.ItemIdList.Length > 0)
{
await AddToCollection(collection.Id, options.ItemIdList, false, new MetadataRefreshOptions(_fileSystem)
{
// The initial adding of items is going to create a local metadata file
// This will cause internet metadata to be skipped as a result
MetadataRefreshMode = MetadataRefreshMode.FullRefresh
});
}
else
{
_providerManager.QueueRefresh(collection.Id, new MetadataRefreshOptions(_fileSystem), RefreshPriority.High);
}
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, string[] ids)
{
return AddToCollection(collectionId, ids, true, new MetadataRefreshOptions(_fileSystem));
}
private async Task AddToCollection(Guid collectionId, string[] ids, bool fireEvent, MetadataRefreshOptions refreshOptions)
{
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 currentLinkedChildrenIds = collection.GetLinkedChildren().Select(i => i.Id).ToList();
foreach (var itemId in ids)
{
var guidId = new Guid(itemId);
var item = _libraryManager.GetItemById(guidId);
if (string.IsNullOrWhiteSpace(item.Path))
{
continue;
}
if (item == null)
{
throw new ArgumentException("No item exists with the supplied Id");
}
itemList.Add(item);
if (!currentLinkedChildrenIds.Contains(guidId))
{
list.Add(LinkedChild.Create(item));
}
}
if (list.Count > 0)
{
var newList = collection.LinkedChildren.ToList();
newList.AddRange(list);
collection.LinkedChildren = newList.ToArray(newList.Count);
collection.UpdateRatingToContent();
await collection.UpdateToRepository(ItemUpdateType.MetadataEdit, CancellationToken.None).ConfigureAwait(false);
_providerManager.QueueRefresh(collection.Id, refreshOptions, RefreshPriority.High);
if (fireEvent)
{
EventHelper.FireEventIfNotNull(ItemsAddedToCollection, this, new CollectionModifiedEventArgs
{
Collection = collection,
ItemsChanged = itemList
}, _logger);
}
}
}
public async Task RemoveFromCollection(Guid collectionId, string[] 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 guidId = new Guid(itemId);
var childItem = _libraryManager.GetItemById(guidId);
var child = collection.LinkedChildren.FirstOrDefault(i => (i.ItemId.HasValue && i.ItemId.Value == guidId) || (childItem != null && string.Equals(childItem.Path, i.Path, StringComparison.OrdinalIgnoreCase)));
if (child == null)
{
throw new ArgumentException("No collection title exists with the supplied Id");
}
list.Add(child);
if (childItem != null)
{
itemList.Add(childItem);
}
}
if (list.Count > 0)
{
collection.LinkedChildren = collection.LinkedChildren.Except(list).ToArray();
}
collection.UpdateRatingToContent();
await collection.UpdateToRepository(ItemUpdateType.MetadataEdit, CancellationToken.None).ConfigureAwait(false);
_providerManager.QueueRefresh(collection.Id, new MetadataRefreshOptions(_fileSystem), RefreshPriority.High);
EventHelper.FireEventIfNotNull(ItemsRemovedFromCollection, this, new CollectionModifiedEventArgs
{
Collection = collection,
ItemsChanged = itemList
}, _logger);
}
public IEnumerable<BaseItem> CollapseItemsWithinBoxSets(IEnumerable<BaseItem> items, User user)
{
var results = new Dictionary<Guid, BaseItem>();
var allBoxsets = GetCollections(user).ToList();
foreach (var item in items)
{
var grouping = item as ISupportsBoxSetGrouping;
if (grouping == null)
{
results[item.Id] = item;
}
else
{
var itemId = item.Id;
var currentBoxSets = allBoxsets
.Where(i => i.GetLinkedChildren().Any(j => j.Id == itemId))
.ToList();
if (currentBoxSets.Count > 0)
{
foreach (var boxset in currentBoxSets)
{
results[boxset.Id] = boxset;
}
}
else
{
results[item.Id] = item;
}
}
}
return results.Values;
}
}
}