jellyfin/MediaBrowser.Controller/Entities/Folder.cs
2016-06-26 12:21:10 -04:00

1464 lines
50 KiB
C#

using MediaBrowser.Common.Progress;
using MediaBrowser.Controller.Entities.TV;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Querying;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.Serialization;
using System.Threading;
using System.Threading.Tasks;
using CommonIO;
using MediaBrowser.Controller.Channels;
using MediaBrowser.Model.Channels;
namespace MediaBrowser.Controller.Entities
{
/// <summary>
/// Class Folder
/// </summary>
public class Folder : BaseItem, IHasThemeMedia
{
public static IUserManager UserManager { get; set; }
public static IUserViewManager UserViewManager { get; set; }
public List<Guid> ThemeSongIds { get; set; }
public List<Guid> ThemeVideoIds { get; set; }
[IgnoreDataMember]
public DateTime? DateLastMediaAdded { get; set; }
public Folder()
{
LinkedChildren = new List<LinkedChild>();
ThemeSongIds = new List<Guid>();
ThemeVideoIds = new List<Guid>();
}
[IgnoreDataMember]
public virtual bool IsPreSorted
{
get { return false; }
}
/// <summary>
/// Gets a value indicating whether this instance is folder.
/// </summary>
/// <value><c>true</c> if this instance is folder; otherwise, <c>false</c>.</value>
[IgnoreDataMember]
public override bool IsFolder
{
get
{
return true;
}
}
[IgnoreDataMember]
public virtual bool SupportsCumulativeRunTimeTicks
{
get
{
return false;
}
}
[IgnoreDataMember]
public virtual bool SupportsDateLastMediaAdded
{
get
{
return false;
}
}
public override bool RequiresRefresh()
{
var baseResult = base.RequiresRefresh();
if (SupportsCumulativeRunTimeTicks && !RunTimeTicks.HasValue)
{
baseResult = true;
}
return baseResult;
}
[IgnoreDataMember]
public override string FileNameWithoutExtension
{
get
{
if (LocationType == LocationType.FileSystem)
{
return System.IO.Path.GetFileName(Path);
}
return null;
}
}
protected override bool IsAllowTagFilterEnforced()
{
if (this is ICollectionFolder)
{
return false;
}
if (this is UserView)
{
return false;
}
return true;
}
/// <summary>
/// Gets or sets a value indicating whether this instance is physical root.
/// </summary>
/// <value><c>true</c> if this instance is physical root; otherwise, <c>false</c>.</value>
public bool IsPhysicalRoot { get; set; }
/// <summary>
/// Gets or sets a value indicating whether this instance is root.
/// </summary>
/// <value><c>true</c> if this instance is root; otherwise, <c>false</c>.</value>
public bool IsRoot { get; set; }
public virtual List<LinkedChild> LinkedChildren { get; set; }
[IgnoreDataMember]
protected virtual bool SupportsShortcutChildren
{
get { return false; }
}
/// <summary>
/// Adds the child.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
/// <exception cref="System.InvalidOperationException">Unable to add + item.Name</exception>
public async Task AddChild(BaseItem item, CancellationToken cancellationToken)
{
item.SetParent(this);
if (item.Id == Guid.Empty)
{
item.Id = LibraryManager.GetNewItemId(item.Path, item.GetType());
}
if (ActualChildren.Any(i => i.Id == item.Id))
{
throw new ArgumentException(string.Format("A child with the Id {0} already exists.", item.Id));
}
if (item.DateCreated == DateTime.MinValue)
{
item.DateCreated = DateTime.UtcNow;
}
if (item.DateModified == DateTime.MinValue)
{
item.DateModified = DateTime.UtcNow;
}
await LibraryManager.CreateItem(item, cancellationToken).ConfigureAwait(false);
}
/// <summary>
/// Removes the child.
/// </summary>
/// <param name="item">The item.</param>
public void RemoveChild(BaseItem item)
{
item.SetParent(null);
}
#region Indexing
/// <summary>
/// Returns the valid set of index by options for this folder type.
/// Override or extend to modify.
/// </summary>
/// <returns>Dictionary{System.StringFunc{UserIEnumerable{BaseItem}}}.</returns>
protected virtual IEnumerable<string> GetIndexByOptions()
{
return new List<string> {
{"None"},
{"Performer"},
{"Genre"},
{"Director"},
{"Year"},
{"Studio"}
};
}
/// <summary>
/// Get the list of indexy by choices for this folder (localized).
/// </summary>
/// <value>The index by option strings.</value>
[IgnoreDataMember]
public IEnumerable<string> IndexByOptionStrings
{
get { return GetIndexByOptions(); }
}
#endregion
/// <summary>
/// Gets the actual children.
/// </summary>
/// <value>The actual children.</value>
[IgnoreDataMember]
protected virtual IEnumerable<BaseItem> ActualChildren
{
get
{
return LoadChildren();
}
}
/// <summary>
/// thread-safe access to the actual children of this folder - without regard to user
/// </summary>
/// <value>The children.</value>
[IgnoreDataMember]
public IEnumerable<BaseItem> Children
{
get { return ActualChildren.ToList(); }
}
/// <summary>
/// thread-safe access to all recursive children of this folder - without regard to user
/// </summary>
/// <value>The recursive children.</value>
[IgnoreDataMember]
public IEnumerable<BaseItem> RecursiveChildren
{
get { return GetRecursiveChildren(); }
}
public override bool IsVisible(User user)
{
if (this is ICollectionFolder && !(this is BasePluginFolder))
{
if (user.Policy.BlockedMediaFolders != null)
{
if (user.Policy.BlockedMediaFolders.Contains(Id.ToString("N"), StringComparer.OrdinalIgnoreCase) ||
// Backwards compatibility
user.Policy.BlockedMediaFolders.Contains(Name, StringComparer.OrdinalIgnoreCase))
{
return false;
}
}
else
{
if (!user.Policy.EnableAllFolders && !user.Policy.EnabledFolders.Contains(Id.ToString("N"), StringComparer.OrdinalIgnoreCase))
{
return false;
}
}
}
return base.IsVisible(user);
}
/// <summary>
/// Loads our children. Validation will occur externally.
/// We want this sychronous.
/// </summary>
protected virtual IEnumerable<BaseItem> LoadChildren()
{
//just load our children from the repo - the library will be validated and maintained in other processes
return GetCachedChildren();
}
public Task ValidateChildren(IProgress<double> progress, CancellationToken cancellationToken)
{
return ValidateChildren(progress, cancellationToken, new MetadataRefreshOptions(new DirectoryService(FileSystem)));
}
/// <summary>
/// Validates that the children of the folder still exist
/// </summary>
/// <param name="progress">The progress.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <param name="metadataRefreshOptions">The metadata refresh options.</param>
/// <param name="recursive">if set to <c>true</c> [recursive].</param>
/// <returns>Task.</returns>
public Task ValidateChildren(IProgress<double> progress, CancellationToken cancellationToken, MetadataRefreshOptions metadataRefreshOptions, bool recursive = true)
{
return ValidateChildrenInternal(progress, cancellationToken, recursive, true, metadataRefreshOptions, metadataRefreshOptions.DirectoryService);
}
private Dictionary<Guid, BaseItem> GetActualChildrenDictionary()
{
var dictionary = new Dictionary<Guid, BaseItem>();
foreach (var child in ActualChildren)
{
var id = child.Id;
if (dictionary.ContainsKey(id))
{
Logger.Error("Found folder containing items with duplicate id. Path: {0}, Child Name: {1}",
Path ?? Name,
child.Path ?? child.Name);
}
else
{
dictionary[id] = child;
}
}
return dictionary;
}
private bool IsValidFromResolver(BaseItem current, BaseItem newItem)
{
return current.IsValidFromResolver(newItem);
}
/// <summary>
/// Validates the children internal.
/// </summary>
/// <param name="progress">The progress.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <param name="recursive">if set to <c>true</c> [recursive].</param>
/// <param name="refreshChildMetadata">if set to <c>true</c> [refresh child metadata].</param>
/// <param name="refreshOptions">The refresh options.</param>
/// <param name="directoryService">The directory service.</param>
/// <returns>Task.</returns>
protected async virtual Task ValidateChildrenInternal(IProgress<double> progress, CancellationToken cancellationToken, bool recursive, bool refreshChildMetadata, MetadataRefreshOptions refreshOptions, IDirectoryService directoryService)
{
var locationType = LocationType;
cancellationToken.ThrowIfCancellationRequested();
var validChildren = new List<BaseItem>();
if (locationType != LocationType.Remote && locationType != LocationType.Virtual)
{
IEnumerable<BaseItem> nonCachedChildren;
try
{
nonCachedChildren = GetNonCachedChildren(directoryService);
}
catch (IOException ex)
{
nonCachedChildren = new BaseItem[] { };
Logger.ErrorException("Error getting file system entries for {0}", ex, Path);
}
if (nonCachedChildren == null) return; //nothing to validate
progress.Report(5);
//build a dictionary of the current children we have now by Id so we can compare quickly and easily
var currentChildren = GetActualChildrenDictionary();
//create a list for our validated children
var newItems = new List<BaseItem>();
cancellationToken.ThrowIfCancellationRequested();
foreach (var child in nonCachedChildren)
{
BaseItem currentChild;
if (currentChildren.TryGetValue(child.Id, out currentChild) && IsValidFromResolver(currentChild, child))
{
var currentChildLocationType = currentChild.LocationType;
if (currentChildLocationType != LocationType.Remote &&
currentChildLocationType != LocationType.Virtual)
{
currentChild.DateModified = child.DateModified;
}
await UpdateIsOffline(currentChild, false).ConfigureAwait(false);
validChildren.Add(currentChild);
continue;
}
// Brand new item - needs to be added
child.SetParent(this);
newItems.Add(child);
validChildren.Add(child);
}
// If any items were added or removed....
if (newItems.Count > 0 || currentChildren.Count != validChildren.Count)
{
// That's all the new and changed ones - now see if there are any that are missing
var itemsRemoved = currentChildren.Values.Except(validChildren).ToList();
var actualRemovals = new List<BaseItem>();
foreach (var item in itemsRemoved)
{
var itemLocationType = item.LocationType;
if (itemLocationType == LocationType.Virtual ||
itemLocationType == LocationType.Remote)
{
}
else if (!string.IsNullOrEmpty(item.Path) && IsPathOffline(item.Path))
{
await UpdateIsOffline(item, true).ConfigureAwait(false);
}
else
{
actualRemovals.Add(item);
}
}
if (actualRemovals.Count > 0)
{
foreach (var item in actualRemovals)
{
Logger.Debug("Removed item: " + item.Path);
item.SetParent(null);
item.IsOffline = false;
await LibraryManager.DeleteItem(item, new DeleteOptions { DeleteFileLocation = false }).ConfigureAwait(false);
LibraryManager.ReportItemRemoved(item);
}
}
await LibraryManager.CreateItems(newItems, cancellationToken).ConfigureAwait(false);
}
}
progress.Report(10);
cancellationToken.ThrowIfCancellationRequested();
if (recursive)
{
await ValidateSubFolders(ActualChildren.OfType<Folder>().ToList(), directoryService, progress, cancellationToken).ConfigureAwait(false);
}
progress.Report(20);
if (refreshChildMetadata)
{
var container = this as IMetadataContainer;
var innerProgress = new ActionableProgress<double>();
innerProgress.RegisterAction(p => progress.Report(.80 * p + 20));
if (container != null)
{
await container.RefreshAllMetadata(refreshOptions, innerProgress, cancellationToken).ConfigureAwait(false);
}
else
{
await RefreshMetadataRecursive(refreshOptions, recursive, innerProgress, cancellationToken);
}
}
progress.Report(100);
}
private Task UpdateIsOffline(BaseItem item, bool newValue)
{
if (item.IsOffline != newValue)
{
item.IsOffline = newValue;
return item.UpdateToRepository(ItemUpdateType.None, CancellationToken.None);
}
return Task.FromResult(true);
}
private async Task RefreshMetadataRecursive(MetadataRefreshOptions refreshOptions, bool recursive, IProgress<double> progress, CancellationToken cancellationToken)
{
var children = ActualChildren.ToList();
var percentages = new Dictionary<Guid, double>(children.Count);
var numComplete = 0;
var count = children.Count;
foreach (var child in children)
{
cancellationToken.ThrowIfCancellationRequested();
if (child.IsFolder)
{
var innerProgress = new ActionableProgress<double>();
// Avoid implicitly captured closure
var currentChild = child;
innerProgress.RegisterAction(p =>
{
lock (percentages)
{
percentages[currentChild.Id] = p / 100;
var innerPercent = percentages.Values.Sum();
innerPercent /= count;
innerPercent *= 100;
progress.Report(innerPercent);
}
});
await RefreshChildMetadata(child, refreshOptions, recursive, innerProgress, cancellationToken)
.ConfigureAwait(false);
}
else
{
await RefreshChildMetadata(child, refreshOptions, false, new Progress<double>(), cancellationToken)
.ConfigureAwait(false);
}
numComplete++;
double percent = numComplete;
percent /= count;
percent *= 100;
progress.Report(percent);
}
progress.Report(100);
}
private async Task RefreshChildMetadata(BaseItem child, MetadataRefreshOptions refreshOptions, bool recursive, IProgress<double> progress, CancellationToken cancellationToken)
{
var container = child as IMetadataContainer;
if (container != null)
{
await container.RefreshAllMetadata(refreshOptions, progress, cancellationToken).ConfigureAwait(false);
}
else
{
await child.RefreshMetadata(refreshOptions, cancellationToken).ConfigureAwait(false);
if (recursive)
{
var folder = child as Folder;
if (folder != null)
{
await folder.RefreshMetadataRecursive(refreshOptions, true, progress, cancellationToken);
}
}
}
progress.Report(100);
}
/// <summary>
/// Refreshes the children.
/// </summary>
/// <param name="children">The children.</param>
/// <param name="directoryService">The directory service.</param>
/// <param name="progress">The progress.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
private async Task ValidateSubFolders(IList<Folder> children, IDirectoryService directoryService, IProgress<double> progress, CancellationToken cancellationToken)
{
var list = children;
var childCount = list.Count;
var percentages = new Dictionary<Guid, double>(list.Count);
foreach (var item in list)
{
cancellationToken.ThrowIfCancellationRequested();
var child = item;
var innerProgress = new ActionableProgress<double>();
innerProgress.RegisterAction(p =>
{
lock (percentages)
{
percentages[child.Id] = p / 100;
var percent = percentages.Values.Sum();
percent /= childCount;
progress.Report(10 * percent + 10);
}
});
await child.ValidateChildrenInternal(innerProgress, cancellationToken, true, false, null, directoryService)
.ConfigureAwait(false);
}
}
/// <summary>
/// Determines whether the specified path is offline.
/// </summary>
/// <param name="path">The path.</param>
/// <returns><c>true</c> if the specified path is offline; otherwise, <c>false</c>.</returns>
public static bool IsPathOffline(string path)
{
if (FileSystem.FileExists(path))
{
return false;
}
var originalPath = path;
// Depending on whether the path is local or unc, it may return either null or '\' at the top
while (!string.IsNullOrEmpty(path) && path.Length > 1)
{
if (FileSystem.DirectoryExists(path))
{
return false;
}
path = System.IO.Path.GetDirectoryName(path);
}
if (ContainsPath(LibraryManager.GetVirtualFolders(), originalPath))
{
return true;
}
return false;
}
/// <summary>
/// Determines whether the specified folders contains path.
/// </summary>
/// <param name="folders">The folders.</param>
/// <param name="path">The path.</param>
/// <returns><c>true</c> if the specified folders contains path; otherwise, <c>false</c>.</returns>
private static bool ContainsPath(IEnumerable<VirtualFolderInfo> folders, string path)
{
return folders.SelectMany(i => i.Locations).Any(i => ContainsPath(i, path));
}
private static bool ContainsPath(string parent, string path)
{
return string.Equals(parent, path, StringComparison.OrdinalIgnoreCase) || FileSystem.ContainsSubPath(parent, path);
}
/// <summary>
/// Get the children of this folder from the actual file system
/// </summary>
/// <returns>IEnumerable{BaseItem}.</returns>
protected virtual IEnumerable<BaseItem> GetNonCachedChildren(IDirectoryService directoryService)
{
var collectionType = LibraryManager.GetContentType(this);
return LibraryManager.ResolvePaths(GetFileSystemChildren(directoryService), directoryService, this, collectionType);
}
/// <summary>
/// Get our children from the repo - stubbed for now
/// </summary>
/// <returns>IEnumerable{BaseItem}.</returns>
protected IEnumerable<BaseItem> GetCachedChildren()
{
return ItemRepository.GetItemList(new InternalItemsQuery
{
ParentId = Id,
GroupByPresentationUniqueKey = false
});
}
public virtual int GetChildCount(User user)
{
if (LinkedChildren.Count > 0)
{
if (!(this is ICollectionFolder))
{
return GetChildren(user, true).Count();
}
}
var result = GetItems(new InternalItemsQuery(user)
{
Recursive = false,
Limit = 0,
ParentId = Id
}).Result;
return result.TotalRecordCount;
}
public QueryResult<BaseItem> QueryRecursive(InternalItemsQuery query)
{
var user = query.User;
if (!query.ForceDirect && RequiresPostFiltering(query))
{
IEnumerable<BaseItem> items;
Func<BaseItem, bool> filter = i => UserViewBuilder.Filter(i, user, query, UserDataManager, LibraryManager);
if (query.User == null)
{
items = GetRecursiveChildren(filter);
}
else
{
items = GetRecursiveChildren(user, query);
}
return PostFilterAndSort(items, query);
}
if (!(this is UserRootFolder) && !(this is AggregateFolder))
{
query.ParentId = query.ParentId ?? Id;
}
return LibraryManager.GetItemsResult(query);
}
private bool RequiresPostFiltering(InternalItemsQuery query)
{
if (LinkedChildren.Count > 0)
{
if (!(this is ICollectionFolder))
{
Logger.Debug("Query requires post-filtering due to LinkedChildren. Type: " + GetType().Name);
return true;
}
}
if (query.SortBy != null && query.SortBy.Length > 0)
{
if (query.SortBy.Contains(ItemSortBy.AiredEpisodeOrder, StringComparer.OrdinalIgnoreCase))
{
Logger.Debug("Query requires post-filtering due to ItemSortBy.AiredEpisodeOrder");
return true;
}
if (query.SortBy.Contains(ItemSortBy.Budget, StringComparer.OrdinalIgnoreCase))
{
Logger.Debug("Query requires post-filtering due to ItemSortBy.Budget");
return true;
}
if (query.SortBy.Contains(ItemSortBy.GameSystem, StringComparer.OrdinalIgnoreCase))
{
Logger.Debug("Query requires post-filtering due to ItemSortBy.GameSystem");
return true;
}
if (query.SortBy.Contains(ItemSortBy.Metascore, StringComparer.OrdinalIgnoreCase))
{
Logger.Debug("Query requires post-filtering due to ItemSortBy.Metascore");
return true;
}
if (query.SortBy.Contains(ItemSortBy.Players, StringComparer.OrdinalIgnoreCase))
{
Logger.Debug("Query requires post-filtering due to ItemSortBy.Players");
return true;
}
if (query.SortBy.Contains(ItemSortBy.Revenue, StringComparer.OrdinalIgnoreCase))
{
Logger.Debug("Query requires post-filtering due to ItemSortBy.Revenue");
return true;
}
if (query.SortBy.Contains(ItemSortBy.SeriesSortName, StringComparer.OrdinalIgnoreCase))
{
Logger.Debug("Query requires post-filtering due to ItemSortBy.SeriesSortName");
return true;
}
if (query.SortBy.Contains(ItemSortBy.VideoBitRate, StringComparer.OrdinalIgnoreCase))
{
Logger.Debug("Query requires post-filtering due to ItemSortBy.VideoBitRate");
return true;
}
}
if (query.ItemIds.Length > 0)
{
Logger.Debug("Query requires post-filtering due to ItemIds");
return true;
}
if (query.IsInBoxSet.HasValue)
{
Logger.Debug("Query requires post-filtering due to IsInBoxSet");
return true;
}
// Filter by Video3DFormat
if (query.Is3D.HasValue)
{
Logger.Debug("Query requires post-filtering due to Is3D");
return true;
}
if (query.HasOfficialRating.HasValue)
{
Logger.Debug("Query requires post-filtering due to HasOfficialRating");
return true;
}
if (query.IsPlaceHolder.HasValue)
{
Logger.Debug("Query requires post-filtering due to IsPlaceHolder");
return true;
}
if (query.HasSpecialFeature.HasValue)
{
Logger.Debug("Query requires post-filtering due to HasSpecialFeature");
return true;
}
if (query.HasSubtitles.HasValue)
{
Logger.Debug("Query requires post-filtering due to HasSubtitles");
return true;
}
if (query.HasTrailer.HasValue)
{
Logger.Debug("Query requires post-filtering due to HasTrailer");
return true;
}
if (query.HasThemeSong.HasValue)
{
Logger.Debug("Query requires post-filtering due to HasThemeSong");
return true;
}
if (query.HasThemeVideo.HasValue)
{
Logger.Debug("Query requires post-filtering due to HasThemeVideo");
return true;
}
// Filter by VideoType
if (query.VideoTypes.Length > 0)
{
Logger.Debug("Query requires post-filtering due to VideoTypes");
return true;
}
// Apply person filter
if (query.ItemIdsFromPersonFilters != null)
{
Logger.Debug("Query requires post-filtering due to ItemIdsFromPersonFilters");
return true;
}
if (query.MinPlayers.HasValue)
{
Logger.Debug("Query requires post-filtering due to MinPlayers");
return true;
}
if (query.MaxPlayers.HasValue)
{
Logger.Debug("Query requires post-filtering due to MaxPlayers");
return true;
}
if (query.IsMissing.HasValue)
{
Logger.Debug("Query requires post-filtering due to IsMissing");
return true;
}
if (query.IsUnaired.HasValue)
{
Logger.Debug("Query requires post-filtering due to IsUnaired");
return true;
}
if (query.IsVirtualUnaired.HasValue)
{
Logger.Debug("Query requires post-filtering due to IsVirtualUnaired");
return true;
}
if (UserViewBuilder.CollapseBoxSetItems(query, this, query.User, ConfigurationManager))
{
Logger.Debug("Query requires post-filtering due to CollapseBoxSetItems");
return true;
}
if (!string.IsNullOrWhiteSpace(query.AdjacentTo))
{
Logger.Debug("Query requires post-filtering due to AdjacentTo");
return true;
}
if (query.AirDays.Length > 0)
{
Logger.Debug("Query requires post-filtering due to AirDays");
return true;
}
if (query.SeriesStatuses.Length > 0)
{
Logger.Debug("Query requires post-filtering due to SeriesStatuses");
return true;
}
if (query.AiredDuringSeason.HasValue)
{
Logger.Debug("Query requires post-filtering due to AiredDuringSeason");
return true;
}
if (!string.IsNullOrWhiteSpace(query.AlbumArtistStartsWithOrGreater))
{
Logger.Debug("Query requires post-filtering due to AlbumArtistStartsWithOrGreater");
return true;
}
return false;
}
public Task<QueryResult<BaseItem>> GetItems(InternalItemsQuery query)
{
if (query.ItemIds.Length > 0)
{
var specificItems = query.ItemIds.Select(LibraryManager.GetItemById).Where(i => i != null).ToList();
return Task.FromResult(PostFilterAndSort(specificItems, query));
}
return GetItemsInternal(query);
}
protected virtual async Task<QueryResult<BaseItem>> GetItemsInternal(InternalItemsQuery query)
{
if (SourceType == SourceType.Channel)
{
try
{
// Don't blow up here because it could cause parent screens with other content to fail
return await ChannelManager.GetChannelItemsInternal(new ChannelItemQuery
{
ChannelId = ChannelId,
FolderId = Id.ToString("N"),
Limit = query.Limit,
StartIndex = query.StartIndex,
UserId = query.User.Id.ToString("N"),
SortBy = query.SortBy,
SortOrder = query.SortOrder
}, new Progress<double>(), CancellationToken.None);
}
catch
{
// Already logged at lower levels
return new QueryResult<BaseItem>
{
};
}
}
if (query.Recursive)
{
return QueryRecursive(query);
}
var user = query.User;
Func<BaseItem, bool> filter = i => UserViewBuilder.Filter(i, user, query, UserDataManager, LibraryManager);
IEnumerable<BaseItem> items;
if (query.User == null)
{
items = query.Recursive
? GetRecursiveChildren(filter)
: Children.Where(filter);
}
else
{
items = query.Recursive
? GetRecursiveChildren(user, query)
: GetChildren(user, true).Where(filter);
}
return PostFilterAndSort(items, query);
}
protected QueryResult<BaseItem> PostFilterAndSort(IEnumerable<BaseItem> items, InternalItemsQuery query)
{
return UserViewBuilder.PostFilterAndSort(items, this, null, query, LibraryManager, ConfigurationManager);
}
public virtual IEnumerable<BaseItem> GetChildren(User user, bool includeLinkedChildren)
{
if (user == null)
{
throw new ArgumentNullException();
}
//the true root should return our users root folder children
if (IsPhysicalRoot) return user.RootFolder.GetChildren(user, includeLinkedChildren);
var result = new Dictionary<Guid, BaseItem>();
AddChildren(user, includeLinkedChildren, result, false, null);
return result.Values;
}
protected virtual IEnumerable<BaseItem> GetEligibleChildrenForRecursiveChildren(User user)
{
return Children;
}
/// <summary>
/// Adds the children to list.
/// </summary>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
private void AddChildren(User user, bool includeLinkedChildren, Dictionary<Guid, BaseItem> result, bool recursive, InternalItemsQuery query)
{
foreach (var child in GetEligibleChildrenForRecursiveChildren(user))
{
if (child.IsVisible(user))
{
if (query == null || UserViewBuilder.FilterItem(child, query))
{
result[child.Id] = child;
}
if (recursive && child.IsFolder)
{
var folder = (Folder)child;
folder.AddChildren(user, includeLinkedChildren, result, true, query);
}
}
}
if (includeLinkedChildren)
{
foreach (var child in GetLinkedChildren(user))
{
if (child.IsVisible(user))
{
if (query == null || UserViewBuilder.FilterItem(child, query))
{
result[child.Id] = child;
}
}
}
}
}
/// <summary>
/// Gets allowed recursive children of an item
/// </summary>
/// <param name="user">The user.</param>
/// <param name="includeLinkedChildren">if set to <c>true</c> [include linked children].</param>
/// <returns>IEnumerable{BaseItem}.</returns>
/// <exception cref="System.ArgumentNullException"></exception>
public IEnumerable<BaseItem> GetRecursiveChildren(User user, bool includeLinkedChildren = true)
{
return GetRecursiveChildren(user, null);
}
public virtual IEnumerable<BaseItem> GetRecursiveChildren(User user, InternalItemsQuery query)
{
if (user == null)
{
throw new ArgumentNullException("user");
}
var result = new Dictionary<Guid, BaseItem>();
AddChildren(user, true, result, true, query);
return result.Values;
}
/// <summary>
/// Gets the recursive children.
/// </summary>
/// <returns>IList{BaseItem}.</returns>
public IList<BaseItem> GetRecursiveChildren()
{
return GetRecursiveChildren(i => true);
}
public IList<BaseItem> GetRecursiveChildren(Func<BaseItem, bool> filter)
{
var result = new Dictionary<Guid, BaseItem>();
AddChildrenToList(result, true, true, filter);
return result.Values.ToList();
}
/// <summary>
/// Adds the children to list.
/// </summary>
private void AddChildrenToList(Dictionary<Guid, BaseItem> result, bool includeLinkedChildren, bool recursive, Func<BaseItem, bool> filter)
{
foreach (var child in Children)
{
if (filter == null || filter(child))
{
result[child.Id] = child;
}
if (recursive && child.IsFolder)
{
var folder = (Folder)child;
// We can only support includeLinkedChildren for the first folder, or we might end up stuck in a loop of linked items
folder.AddChildrenToList(result, false, true, filter);
}
}
if (includeLinkedChildren)
{
foreach (var child in GetLinkedChildren())
{
if (filter == null || filter(child))
{
result[child.Id] = child;
}
}
}
}
/// <summary>
/// Gets the linked children.
/// </summary>
/// <returns>IEnumerable{BaseItem}.</returns>
public IEnumerable<BaseItem> GetLinkedChildren()
{
return LinkedChildren
.Select(GetLinkedChild)
.Where(i => i != null);
}
protected virtual bool FilterLinkedChildrenPerUser
{
get
{
return false;
}
}
public IEnumerable<BaseItem> GetLinkedChildren(User user)
{
if (!FilterLinkedChildrenPerUser || user == null)
{
return GetLinkedChildren();
}
var locations = user.RootFolder
.Children
.OfType<CollectionFolder>()
.Where(i => i.IsVisible(user))
.SelectMany(i => i.PhysicalLocations)
.ToList();
return LinkedChildren
.Select(i =>
{
var requiresPostFilter = true;
if (!string.IsNullOrWhiteSpace(i.Path))
{
requiresPostFilter = false;
if (!locations.Any(l => FileSystem.ContainsSubPath(l, i.Path)))
{
return null;
}
}
var child = GetLinkedChild(i);
if (requiresPostFilter && child != null)
{
if (string.IsNullOrWhiteSpace(child.Path))
{
Logger.Debug("Found LinkedChild with null path: {0}", child.Name);
return child;
}
if (!locations.Any(l => FileSystem.ContainsSubPath(l, child.Path)))
{
return null;
}
}
return child;
})
.Where(i => i != null);
}
/// <summary>
/// Gets the linked children.
/// </summary>
/// <returns>IEnumerable{BaseItem}.</returns>
public IEnumerable<Tuple<LinkedChild, BaseItem>> GetLinkedChildrenInfos()
{
return LinkedChildren
.Select(i => new Tuple<LinkedChild, BaseItem>(i, GetLinkedChild(i)))
.Where(i => i.Item2 != null);
}
[IgnoreDataMember]
protected override bool SupportsOwnedItems
{
get
{
return base.SupportsOwnedItems || SupportsShortcutChildren;
}
}
protected override async Task<bool> RefreshedOwnedItems(MetadataRefreshOptions options, List<FileSystemMetadata> fileSystemChildren, CancellationToken cancellationToken)
{
var changesFound = false;
if (LocationType == LocationType.FileSystem)
{
if (RefreshLinkedChildren(fileSystemChildren))
{
changesFound = true;
}
}
var baseHasChanges = await base.RefreshedOwnedItems(options, fileSystemChildren, cancellationToken).ConfigureAwait(false);
return baseHasChanges || changesFound;
}
/// <summary>
/// Refreshes the linked children.
/// </summary>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
private bool RefreshLinkedChildren(IEnumerable<FileSystemMetadata> fileSystemChildren)
{
var currentManualLinks = LinkedChildren.Where(i => i.Type == LinkedChildType.Manual).ToList();
var currentShortcutLinks = LinkedChildren.Where(i => i.Type == LinkedChildType.Shortcut).ToList();
List<LinkedChild> newShortcutLinks;
if (SupportsShortcutChildren)
{
newShortcutLinks = fileSystemChildren
.Where(i => (i.Attributes & FileAttributes.Directory) != FileAttributes.Directory && FileSystem.IsShortcut(i.FullName))
.Select(i =>
{
try
{
Logger.Debug("Found shortcut at {0}", i.FullName);
var resolvedPath = FileSystem.ResolveShortcut(i.FullName);
if (!string.IsNullOrEmpty(resolvedPath))
{
return new LinkedChild
{
Path = resolvedPath,
Type = LinkedChildType.Shortcut
};
}
Logger.Error("Error resolving shortcut {0}", i.FullName);
return null;
}
catch (IOException ex)
{
Logger.ErrorException("Error resolving shortcut {0}", ex, i.FullName);
return null;
}
})
.Where(i => i != null)
.ToList();
}
else { newShortcutLinks = new List<LinkedChild>(); }
if (!newShortcutLinks.SequenceEqual(currentShortcutLinks, new LinkedChildComparer()))
{
Logger.Info("Shortcut links have changed for {0}", Path);
newShortcutLinks.AddRange(currentManualLinks);
LinkedChildren = newShortcutLinks;
return true;
}
foreach (var child in LinkedChildren)
{
// Reset the cached value
child.ItemId = null;
}
return false;
}
/// <summary>
/// Folders need to validate and refresh
/// </summary>
/// <returns>Task.</returns>
public override async Task ChangedExternally()
{
var progress = new Progress<double>();
await ValidateChildren(progress, CancellationToken.None).ConfigureAwait(false);
await base.ChangedExternally().ConfigureAwait(false);
}
/// <summary>
/// Marks the played.
/// </summary>
/// <param name="user">The user.</param>
/// <param name="datePlayed">The date played.</param>
/// <param name="resetPosition">if set to <c>true</c> [reset position].</param>
/// <returns>Task.</returns>
public override async Task MarkPlayed(User user,
DateTime? datePlayed,
bool resetPosition)
{
var query = new InternalItemsQuery
{
User = user,
Recursive = true,
IsFolder = false,
EnableTotalRecordCount = false
};
if (!user.Configuration.DisplayMissingEpisodes || !user.Configuration.DisplayUnairedEpisodes)
{
query.ExcludeLocationTypes = new[] { LocationType.Virtual };
}
var itemsResult = await GetItems(query).ConfigureAwait(false);
// Sweep through recursively and update status
var tasks = itemsResult.Items.Select(c => c.MarkPlayed(user, datePlayed, resetPosition));
await Task.WhenAll(tasks).ConfigureAwait(false);
}
/// <summary>
/// Marks the unplayed.
/// </summary>
/// <param name="user">The user.</param>
/// <returns>Task.</returns>
public override async Task MarkUnplayed(User user)
{
var itemsResult = await GetItems(new InternalItemsQuery
{
User = user,
Recursive = true,
IsFolder = false,
EnableTotalRecordCount = false
}).ConfigureAwait(false);
// Sweep through recursively and update status
var tasks = itemsResult.Items.Select(c => c.MarkUnplayed(user));
await Task.WhenAll(tasks).ConfigureAwait(false);
}
public override bool IsPlayed(User user)
{
var itemsResult = GetItems(new InternalItemsQuery(user)
{
Recursive = true,
IsFolder = false,
ExcludeLocationTypes = new[] { LocationType.Virtual },
EnableTotalRecordCount = false
}).Result;
return itemsResult.Items
.All(i => i.IsPlayed(user));
}
public override bool IsUnplayed(User user)
{
return !IsPlayed(user);
}
[IgnoreDataMember]
public virtual bool SupportsUserDataFromChildren
{
get
{
// These are just far too slow.
if (this is ICollectionFolder)
{
return false;
}
if (this is UserView)
{
return false;
}
if (this is UserRootFolder)
{
return false;
}
if (this is Channel)
{
return false;
}
if (SourceType != SourceType.Library)
{
return false;
}
return true;
}
}
public override async Task FillUserDataDtoValues(UserItemDataDto dto, UserItemData userData, BaseItemDto itemDto, User user)
{
if (!SupportsUserDataFromChildren)
{
return;
}
var unplayedQueryResult = await GetItems(new InternalItemsQuery(user)
{
Recursive = true,
IsFolder = false,
IsVirtualItem = false,
EnableTotalRecordCount = true,
Limit = 0,
IsPlayed = false
}).ConfigureAwait(false);
var allItemsQueryResult = await GetItems(new InternalItemsQuery(user)
{
Recursive = true,
IsFolder = false,
IsVirtualItem = false,
EnableTotalRecordCount = true,
Limit = 0
}).ConfigureAwait(false);
if (itemDto != null)
{
itemDto.RecursiveItemCount = allItemsQueryResult.TotalRecordCount;
}
double recursiveItemCount = allItemsQueryResult.TotalRecordCount;
double unplayedCount = unplayedQueryResult.TotalRecordCount;
if (recursiveItemCount > 0)
{
var unplayedPercentage = (unplayedCount / recursiveItemCount) * 100;
dto.PlayedPercentage = 100 - unplayedPercentage;
dto.Played = dto.PlayedPercentage.Value >= 100;
dto.UnplayedItemCount = unplayedQueryResult.TotalRecordCount;
}
}
}
}