859 lines
33 KiB
C#
859 lines
33 KiB
C#
using MediaBrowser.Common.Extensions;
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using MediaBrowser.Common.Progress;
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using MediaBrowser.Controller.IO;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.Localization;
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using MediaBrowser.Controller.Resolvers;
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using MediaBrowser.Model.Entities;
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using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Runtime.Serialization;
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using System.Threading;
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using System.Threading.Tasks;
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namespace MediaBrowser.Controller.Entities
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{
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/// <summary>
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/// Class Folder
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/// </summary>
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public class Folder : BaseItem
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{
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/// <summary>
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/// Gets a value indicating whether this instance is folder.
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/// </summary>
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/// <value><c>true</c> if this instance is folder; otherwise, <c>false</c>.</value>
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[IgnoreDataMember]
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public override bool IsFolder
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{
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get
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{
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return true;
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}
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}
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/// <summary>
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/// Gets or sets a value indicating whether this instance is physical root.
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/// </summary>
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/// <value><c>true</c> if this instance is physical root; otherwise, <c>false</c>.</value>
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public bool IsPhysicalRoot { get; set; }
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/// <summary>
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/// Gets or sets a value indicating whether this instance is root.
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/// </summary>
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/// <value><c>true</c> if this instance is root; otherwise, <c>false</c>.</value>
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public bool IsRoot { get; set; }
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/// <summary>
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/// Gets a value indicating whether this instance is virtual folder.
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/// </summary>
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/// <value><c>true</c> if this instance is virtual folder; otherwise, <c>false</c>.</value>
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[IgnoreDataMember]
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public virtual bool IsVirtualFolder
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{
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get
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{
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return false;
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}
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}
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/// <summary>
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/// Return the id that should be used to key display prefs for this item.
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/// Default is based on the type for everything except actual generic folders.
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/// </summary>
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/// <value>The display prefs id.</value>
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[IgnoreDataMember]
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protected virtual Guid DisplayPreferencesId
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{
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get
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{
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var thisType = GetType();
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return thisType == typeof(Folder) ? Id : thisType.FullName.GetMD5();
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}
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}
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/// <summary>
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/// Gets the display preferences id.
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/// </summary>
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/// <param name="userId">The user id.</param>
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/// <returns>Guid.</returns>
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public Guid GetDisplayPreferencesId(Guid userId)
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{
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return (userId + DisplayPreferencesId.ToString()).GetMD5();
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}
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#region Indexing
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/// <summary>
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/// The _index by options
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/// </summary>
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private Dictionary<string, Func<User, IEnumerable<BaseItem>>> _indexByOptions;
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/// <summary>
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/// Dictionary of index options - consists of a display value and an indexing function
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/// which takes User as a parameter and returns an IEnum of BaseItem
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/// </summary>
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/// <value>The index by options.</value>
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[IgnoreDataMember]
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public Dictionary<string, Func<User, IEnumerable<BaseItem>>> IndexByOptions
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{
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get { return _indexByOptions ?? (_indexByOptions = GetIndexByOptions()); }
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}
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/// <summary>
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/// Returns the valid set of index by options for this folder type.
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/// Override or extend to modify.
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/// </summary>
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/// <returns>Dictionary{System.StringFunc{UserIEnumerable{BaseItem}}}.</returns>
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protected virtual Dictionary<string, Func<User, IEnumerable<BaseItem>>> GetIndexByOptions()
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{
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return new Dictionary<string, Func<User, IEnumerable<BaseItem>>> {
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{LocalizedStrings.Instance.GetString("NoneDispPref"), null},
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{LocalizedStrings.Instance.GetString("PerformerDispPref"), GetIndexByPerformer},
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{LocalizedStrings.Instance.GetString("GenreDispPref"), GetIndexByGenre},
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{LocalizedStrings.Instance.GetString("DirectorDispPref"), GetIndexByDirector},
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{LocalizedStrings.Instance.GetString("YearDispPref"), GetIndexByYear},
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{LocalizedStrings.Instance.GetString("OfficialRatingDispPref"), null},
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{LocalizedStrings.Instance.GetString("StudioDispPref"), GetIndexByStudio}
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};
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}
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/// <summary>
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/// Gets the index by actor.
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/// </summary>
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/// <param name="user">The user.</param>
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/// <returns>IEnumerable{BaseItem}.</returns>
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protected IEnumerable<BaseItem> GetIndexByPerformer(User user)
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{
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return GetIndexByPerson(user, new List<string> { PersonType.Actor, PersonType.MusicArtist }, LocalizedStrings.Instance.GetString("PerformerDispPref"));
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}
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/// <summary>
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/// Gets the index by director.
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/// </summary>
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/// <param name="user">The user.</param>
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/// <returns>IEnumerable{BaseItem}.</returns>
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protected IEnumerable<BaseItem> GetIndexByDirector(User user)
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{
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return GetIndexByPerson(user, new List<string> { PersonType.Director }, LocalizedStrings.Instance.GetString("DirectorDispPref"));
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}
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/// <summary>
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/// Gets the index by person.
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/// </summary>
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/// <param name="user">The user.</param>
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/// <param name="personTypes">The person types we should match on</param>
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/// <param name="indexName">Name of the index.</param>
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/// <returns>IEnumerable{BaseItem}.</returns>
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protected IEnumerable<BaseItem> GetIndexByPerson(User user, List<string> personTypes, string indexName)
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{
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// Even though this implementation means multiple iterations over the target list - it allows us to defer
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// the retrieval of the individual children for each index value until they are requested.
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using (new Profiler(indexName + " Index Build for " + Name, Logger))
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{
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// Put this in a local variable to avoid an implicitly captured closure
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var currentIndexName = indexName;
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var us = this;
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var candidates = RecursiveChildren.Where(i => i.IncludeInIndex && i.AllPeople != null).ToList();
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return candidates.AsParallel().SelectMany(i => i.AllPeople.Where(p => personTypes.Contains(p.Type))
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.Select(a => a.Name))
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.Distinct()
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.Select(i =>
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{
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try
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{
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return LibraryManager.GetPerson(i).Result;
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}
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catch (IOException ex)
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{
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Logger.ErrorException("Error getting person {0}", ex, i);
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return null;
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}
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catch (AggregateException ex)
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{
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Logger.ErrorException("Error getting person {0}", ex, i);
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return null;
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}
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})
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.Where(i => i != null)
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.Select(a => new IndexFolder(us, a,
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candidates.Where(i => i.AllPeople.Any(p => personTypes.Contains(p.Type) && p.Name.Equals(a.Name, StringComparison.OrdinalIgnoreCase))
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), currentIndexName));
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}
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}
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/// <summary>
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/// Gets the index by studio.
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/// </summary>
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/// <param name="user">The user.</param>
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/// <returns>IEnumerable{BaseItem}.</returns>
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protected IEnumerable<BaseItem> GetIndexByStudio(User user)
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{
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// Even though this implementation means multiple iterations over the target list - it allows us to defer
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// the retrieval of the individual children for each index value until they are requested.
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using (new Profiler("Studio Index Build for " + Name, Logger))
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{
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var indexName = LocalizedStrings.Instance.GetString("StudioDispPref");
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var candidates = RecursiveChildren.Where(i => i.IncludeInIndex && i.Studios != null).ToList();
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return candidates.AsParallel().SelectMany(i => i.Studios)
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.Distinct()
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.Select(i =>
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{
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try
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{
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return LibraryManager.GetStudio(i).Result;
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}
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catch (IOException ex)
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{
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Logger.ErrorException("Error getting studio {0}", ex, i);
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return null;
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}
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catch (AggregateException ex)
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{
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Logger.ErrorException("Error getting studio {0}", ex, i);
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return null;
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}
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})
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.Where(i => i != null)
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.Select(ndx => new IndexFolder(this, ndx, candidates.Where(i => i.Studios.Any(s => s.Equals(ndx.Name, StringComparison.OrdinalIgnoreCase))), indexName));
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}
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}
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/// <summary>
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/// Gets the index by genre.
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/// </summary>
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/// <param name="user">The user.</param>
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/// <returns>IEnumerable{BaseItem}.</returns>
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protected IEnumerable<BaseItem> GetIndexByGenre(User user)
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{
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// Even though this implementation means multiple iterations over the target list - it allows us to defer
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// the retrieval of the individual children for each index value until they are requested.
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using (new Profiler("Genre Index Build for " + Name, Logger))
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{
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var indexName = LocalizedStrings.Instance.GetString("GenreDispPref");
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//we need a copy of this so we don't double-recurse
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var candidates = RecursiveChildren.Where(i => i.IncludeInIndex && i.Genres != null).ToList();
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return candidates.AsParallel().SelectMany(i => i.Genres)
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.Distinct()
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.Select(i =>
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{
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try
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{
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return LibraryManager.GetGenre(i).Result;
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}
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catch (IOException ex)
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{
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Logger.ErrorException("Error getting genre {0}", ex, i);
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return null;
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}
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catch (AggregateException ex)
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{
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Logger.ErrorException("Error getting genre {0}", ex, i);
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return null;
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}
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})
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.Where(i => i != null)
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.Select(genre => new IndexFolder(this, genre, candidates.Where(i => i.Genres.Any(g => g.Equals(genre.Name, StringComparison.OrdinalIgnoreCase))), indexName)
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);
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}
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}
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/// <summary>
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/// Gets the index by year.
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/// </summary>
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/// <param name="user">The user.</param>
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/// <returns>IEnumerable{BaseItem}.</returns>
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protected IEnumerable<BaseItem> GetIndexByYear(User user)
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{
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// Even though this implementation means multiple iterations over the target list - it allows us to defer
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// the retrieval of the individual children for each index value until they are requested.
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using (new Profiler("Production Year Index Build for " + Name, Logger))
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{
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var indexName = LocalizedStrings.Instance.GetString("YearDispPref");
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//we need a copy of this so we don't double-recurse
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var candidates = RecursiveChildren.Where(i => i.IncludeInIndex && i.ProductionYear.HasValue).ToList();
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return candidates.AsParallel().Select(i => i.ProductionYear.Value)
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.Distinct()
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.Select(i =>
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{
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try
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{
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return LibraryManager.GetYear(i).Result;
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}
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catch (IOException ex)
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{
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Logger.ErrorException("Error getting year {0}", ex, i);
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return null;
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}
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catch (AggregateException ex)
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{
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Logger.ErrorException("Error getting year {0}", ex, i);
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return null;
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}
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})
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.Where(i => i != null)
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.Select(ndx => new IndexFolder(this, ndx, candidates.Where(i => i.ProductionYear == int.Parse(ndx.Name)), indexName));
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}
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}
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/// <summary>
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/// Returns the indexed children for this user from the cache. Caches them if not already there.
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/// </summary>
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/// <param name="user">The user.</param>
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/// <param name="indexBy">The index by.</param>
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/// <returns>IEnumerable{BaseItem}.</returns>
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private IEnumerable<BaseItem> GetIndexedChildren(User user, string indexBy)
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{
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List<BaseItem> result;
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var cacheKey = user.Name + indexBy;
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IndexCache.TryGetValue(cacheKey, out result);
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if (result == null)
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{
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//not cached - cache it
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Func<User, IEnumerable<BaseItem>> indexing;
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IndexByOptions.TryGetValue(indexBy, out indexing);
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result = BuildIndex(indexBy, indexing, user);
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}
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return result;
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}
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/// <summary>
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/// Get the list of indexy by choices for this folder (localized).
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/// </summary>
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/// <value>The index by option strings.</value>
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[IgnoreDataMember]
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public IEnumerable<string> IndexByOptionStrings
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{
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get { return IndexByOptions.Keys; }
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}
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/// <summary>
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/// The index cache
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/// </summary>
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protected ConcurrentDictionary<string, List<BaseItem>> IndexCache = new ConcurrentDictionary<string, List<BaseItem>>(StringComparer.OrdinalIgnoreCase);
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/// <summary>
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/// Builds the index.
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/// </summary>
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/// <param name="indexKey">The index key.</param>
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/// <param name="indexFunction">The index function.</param>
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/// <param name="user">The user.</param>
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/// <returns>List{BaseItem}.</returns>
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protected virtual List<BaseItem> BuildIndex(string indexKey, Func<User, IEnumerable<BaseItem>> indexFunction, User user)
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{
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return indexFunction != null
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? IndexCache[user.Name + indexKey] = indexFunction(user).ToList()
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: null;
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}
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#endregion
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/// <summary>
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/// The children
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/// </summary>
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private ConcurrentBag<BaseItem> _children;
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/// <summary>
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/// The _children initialized
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/// </summary>
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private bool _childrenInitialized;
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/// <summary>
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/// The _children sync lock
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/// </summary>
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private object _childrenSyncLock = new object();
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/// <summary>
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/// Gets or sets the actual children.
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/// </summary>
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/// <value>The actual children.</value>
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protected virtual ConcurrentBag<BaseItem> ActualChildren
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{
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get
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{
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LazyInitializer.EnsureInitialized(ref _children, ref _childrenInitialized, ref _childrenSyncLock, LoadChildren);
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return _children;
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}
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private set
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{
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_children = value;
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if (value == null)
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{
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_childrenInitialized = false;
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}
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}
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}
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/// <summary>
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/// thread-safe access to the actual children of this folder - without regard to user
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/// </summary>
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/// <value>The children.</value>
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[IgnoreDataMember]
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public ConcurrentBag<BaseItem> Children
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{
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get
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{
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return ActualChildren;
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}
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}
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/// <summary>
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/// thread-safe access to all recursive children of this folder - without regard to user
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/// </summary>
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/// <value>The recursive children.</value>
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[IgnoreDataMember]
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public IEnumerable<BaseItem> RecursiveChildren
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{
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get
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{
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foreach (var item in Children)
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{
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yield return item;
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if (item.IsFolder)
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{
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var subFolder = (Folder)item;
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foreach (var subitem in subFolder.RecursiveChildren)
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{
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yield return subitem;
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}
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}
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}
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}
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}
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/// <summary>
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/// Loads our children. Validation will occur externally.
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/// We want this sychronous.
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/// </summary>
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/// <returns>ConcurrentBag{BaseItem}.</returns>
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protected virtual ConcurrentBag<BaseItem> LoadChildren()
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{
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//just load our children from the repo - the library will be validated and maintained in other processes
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return new ConcurrentBag<BaseItem>(GetCachedChildren());
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}
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/// <summary>
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/// Gets or sets the current validation cancellation token source.
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/// </summary>
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/// <value>The current validation cancellation token source.</value>
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private CancellationTokenSource CurrentValidationCancellationTokenSource { get; set; }
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/// <summary>
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/// Validates that the children of the folder still exist
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/// </summary>
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/// <param name="progress">The progress.</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <param name="recursive">if set to <c>true</c> [recursive].</param>
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/// <returns>Task.</returns>
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public async Task ValidateChildren(IProgress<double> progress, CancellationToken cancellationToken, bool? recursive = null)
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{
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cancellationToken.ThrowIfCancellationRequested();
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// Cancel the current validation, if any
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if (CurrentValidationCancellationTokenSource != null)
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{
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CurrentValidationCancellationTokenSource.Cancel();
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}
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// Create an inner cancellation token. This can cancel all validations from this level on down,
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// but nothing above this
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var innerCancellationTokenSource = new CancellationTokenSource();
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try
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{
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CurrentValidationCancellationTokenSource = innerCancellationTokenSource;
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var linkedCancellationTokenSource = CancellationTokenSource.CreateLinkedTokenSource(innerCancellationTokenSource.Token, cancellationToken);
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await ValidateChildrenInternal(progress, linkedCancellationTokenSource.Token, recursive).ConfigureAwait(false);
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}
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catch (OperationCanceledException ex)
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{
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Logger.Info("ValidateChildren cancelled for " + Name);
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// If the outer cancelletion token in the cause for the cancellation, throw it
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if (cancellationToken.IsCancellationRequested && ex.CancellationToken == cancellationToken)
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{
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throw;
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}
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}
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finally
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{
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// Null out the token source
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if (CurrentValidationCancellationTokenSource == innerCancellationTokenSource)
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{
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CurrentValidationCancellationTokenSource = null;
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}
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innerCancellationTokenSource.Dispose();
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}
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}
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/// <summary>
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/// Compare our current children (presumably just read from the repo) with the current state of the file system and adjust for any changes
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/// ***Currently does not contain logic to maintain items that are unavailable in the file system***
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/// </summary>
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/// <param name="progress">The progress.</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <param name="recursive">if set to <c>true</c> [recursive].</param>
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/// <returns>Task.</returns>
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protected async virtual Task ValidateChildrenInternal(IProgress<double> progress, CancellationToken cancellationToken, bool? recursive = null)
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{
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// Nothing to do here
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if (LocationType != LocationType.FileSystem)
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{
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return;
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}
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cancellationToken.ThrowIfCancellationRequested();
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var changedArgs = new ChildrenChangedEventArgs(this);
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//get the current valid children from filesystem (or wherever)
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var nonCachedChildren = GetNonCachedChildren();
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if (nonCachedChildren == null) return; //nothing to validate
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progress.Report(5);
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//build a dictionary of the current children we have now by Id so we can compare quickly and easily
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|
var currentChildren = ActualChildren.ToDictionary(i => i.Id);
|
|
|
|
//create a list for our validated children
|
|
var validChildren = new ConcurrentBag<Tuple<BaseItem, bool>>();
|
|
|
|
cancellationToken.ThrowIfCancellationRequested();
|
|
|
|
Parallel.ForEach(nonCachedChildren, child =>
|
|
{
|
|
BaseItem currentChild;
|
|
|
|
if (currentChildren.TryGetValue(child.Id, out currentChild))
|
|
{
|
|
currentChild.ResolveArgs = child.ResolveArgs;
|
|
|
|
//existing item - check if it has changed
|
|
if (currentChild.HasChanged(child))
|
|
{
|
|
EntityResolutionHelper.EnsureDates(currentChild, child.ResolveArgs);
|
|
|
|
changedArgs.AddUpdatedItem(currentChild);
|
|
validChildren.Add(new Tuple<BaseItem, bool>(currentChild, true));
|
|
}
|
|
else
|
|
{
|
|
validChildren.Add(new Tuple<BaseItem, bool>(currentChild, false));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
//brand new item - needs to be added
|
|
changedArgs.AddNewItem(child);
|
|
|
|
validChildren.Add(new Tuple<BaseItem, bool>(child, true));
|
|
}
|
|
});
|
|
|
|
// If any items were added or removed....
|
|
if (!changedArgs.ItemsAdded.IsEmpty || currentChildren.Count != validChildren.Count)
|
|
{
|
|
var newChildren = validChildren.Select(c => c.Item1).ToList();
|
|
|
|
//that's all the new and changed ones - now see if there are any that are missing
|
|
changedArgs.ItemsRemoved = currentChildren.Values.Except(newChildren).ToList();
|
|
|
|
foreach (var item in changedArgs.ItemsRemoved)
|
|
{
|
|
Logger.Debug("** " + item.Name + " Removed from library.");
|
|
}
|
|
|
|
var childrenReplaced = false;
|
|
|
|
if (changedArgs.ItemsRemoved.Count > 0)
|
|
{
|
|
ActualChildren = new ConcurrentBag<BaseItem>(newChildren);
|
|
childrenReplaced = true;
|
|
}
|
|
|
|
var saveTasks = new List<Task>();
|
|
|
|
foreach (var item in changedArgs.ItemsAdded)
|
|
{
|
|
Logger.Debug("** " + item.Name + " Added to library.");
|
|
|
|
if (!childrenReplaced)
|
|
{
|
|
_children.Add(item);
|
|
}
|
|
|
|
saveTasks.Add(LibraryManager.SaveItem(item, CancellationToken.None));
|
|
}
|
|
|
|
await Task.WhenAll(saveTasks).ConfigureAwait(false);
|
|
|
|
//and save children in repo...
|
|
Logger.Debug("*** Saving " + newChildren.Count + " children for " + Name);
|
|
await LibraryManager.SaveChildren(Id, newChildren, CancellationToken.None).ConfigureAwait(false);
|
|
}
|
|
|
|
if (changedArgs.HasChange)
|
|
{
|
|
//force the indexes to rebuild next time
|
|
IndexCache.Clear();
|
|
|
|
//and fire event
|
|
LibraryManager.ReportLibraryChanged(changedArgs);
|
|
}
|
|
|
|
progress.Report(10);
|
|
|
|
cancellationToken.ThrowIfCancellationRequested();
|
|
|
|
await RefreshChildren(validChildren, progress, cancellationToken, recursive).ConfigureAwait(false);
|
|
|
|
progress.Report(100);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Refreshes the children.
|
|
/// </summary>
|
|
/// <param name="children">The children.</param>
|
|
/// <param name="progress">The progress.</param>
|
|
/// <param name="cancellationToken">The cancellation token.</param>
|
|
/// <param name="recursive">if set to <c>true</c> [recursive].</param>
|
|
/// <returns>Task.</returns>
|
|
private Task RefreshChildren(IEnumerable<Tuple<BaseItem, bool>> children, IProgress<double> progress, CancellationToken cancellationToken, bool? recursive)
|
|
{
|
|
var list = children.ToList();
|
|
|
|
var percentages = new ConcurrentDictionary<Guid, double>(list.Select(i => new KeyValuePair<Guid, double>(i.Item1.Id, 0)));
|
|
|
|
var tasks = list.Select(tuple => Task.Run(async () =>
|
|
{
|
|
cancellationToken.ThrowIfCancellationRequested();
|
|
|
|
var child = tuple.Item1;
|
|
|
|
//refresh it
|
|
await child.RefreshMetadata(cancellationToken, resetResolveArgs: child.IsFolder).ConfigureAwait(false);
|
|
|
|
// Refresh children if a folder and the item changed or recursive is set to true
|
|
var refreshChildren = child.IsFolder && (tuple.Item2 || (recursive.HasValue && recursive.Value));
|
|
|
|
if (refreshChildren)
|
|
{
|
|
// Don't refresh children if explicitly set to false
|
|
if (recursive.HasValue && recursive.Value == false)
|
|
{
|
|
refreshChildren = false;
|
|
}
|
|
}
|
|
|
|
if (refreshChildren)
|
|
{
|
|
cancellationToken.ThrowIfCancellationRequested();
|
|
|
|
var innerProgress = new ActionableProgress<double>();
|
|
|
|
innerProgress.RegisterAction(p =>
|
|
{
|
|
percentages.TryUpdate(child.Id, p / 100, percentages[child.Id]);
|
|
|
|
var percent = percentages.Values.Sum();
|
|
percent /= list.Count;
|
|
|
|
progress.Report((90 * percent) + 10);
|
|
});
|
|
|
|
await ((Folder) child).ValidateChildren(innerProgress, cancellationToken, recursive).ConfigureAwait(false);
|
|
}
|
|
else
|
|
{
|
|
percentages.TryUpdate(child.Id, 1, percentages[child.Id]);
|
|
|
|
var percent = percentages.Values.Sum();
|
|
percent /= list.Count;
|
|
|
|
progress.Report((90 * percent) + 10);
|
|
}
|
|
}));
|
|
|
|
cancellationToken.ThrowIfCancellationRequested();
|
|
|
|
return Task.WhenAll(tasks);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Get the children of this folder from the actual file system
|
|
/// </summary>
|
|
/// <returns>IEnumerable{BaseItem}.</returns>
|
|
protected virtual IEnumerable<BaseItem> GetNonCachedChildren()
|
|
{
|
|
IEnumerable<WIN32_FIND_DATA> fileSystemChildren;
|
|
|
|
try
|
|
{
|
|
fileSystemChildren = ResolveArgs.FileSystemChildren;
|
|
}
|
|
catch (IOException ex)
|
|
{
|
|
Logger.ErrorException("Error getting ResolveArgs for {0}", ex, Path);
|
|
return new List<BaseItem>();
|
|
}
|
|
|
|
return LibraryManager.ResolvePaths<BaseItem>(fileSystemChildren, this);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Get our children from the repo - stubbed for now
|
|
/// </summary>
|
|
/// <returns>IEnumerable{BaseItem}.</returns>
|
|
protected virtual IEnumerable<BaseItem> GetCachedChildren()
|
|
{
|
|
return LibraryManager.RetrieveChildren(this).Select(i => i is IByReferenceItem ? LibraryManager.GetOrAddByReferenceItem(i) : i);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets allowed children of an item
|
|
/// </summary>
|
|
/// <param name="user">The user.</param>
|
|
/// <param name="indexBy">The index by.</param>
|
|
/// <returns>IEnumerable{BaseItem}.</returns>
|
|
/// <exception cref="System.ArgumentNullException"></exception>
|
|
public virtual IEnumerable<BaseItem> GetChildren(User user, string indexBy = null)
|
|
{
|
|
if (user == null)
|
|
{
|
|
throw new ArgumentNullException();
|
|
}
|
|
|
|
//the true root should return our users root folder children
|
|
if (IsPhysicalRoot) return user.RootFolder.GetChildren(user, indexBy);
|
|
|
|
IEnumerable<BaseItem> result = null;
|
|
|
|
if (!string.IsNullOrEmpty(indexBy))
|
|
{
|
|
result = GetIndexedChildren(user, indexBy);
|
|
}
|
|
|
|
// If indexed is false or the indexing function is null
|
|
return result ?? (ActualChildren.Where(c => c.IsVisible(user)));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets allowed recursive children of an item
|
|
/// </summary>
|
|
/// <param name="user">The user.</param>
|
|
/// <returns>IEnumerable{BaseItem}.</returns>
|
|
/// <exception cref="System.ArgumentNullException"></exception>
|
|
public IEnumerable<BaseItem> GetRecursiveChildren(User user)
|
|
{
|
|
if (user == null)
|
|
{
|
|
throw new ArgumentNullException();
|
|
}
|
|
|
|
foreach (var item in GetChildren(user))
|
|
{
|
|
yield return item;
|
|
|
|
var subFolder = item as Folder;
|
|
|
|
if (subFolder != null)
|
|
{
|
|
foreach (var subitem in subFolder.GetRecursiveChildren(user))
|
|
{
|
|
yield return subitem;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Folders need to validate and refresh
|
|
/// </summary>
|
|
/// <returns>Task.</returns>
|
|
public override async Task ChangedExternally()
|
|
{
|
|
await base.ChangedExternally().ConfigureAwait(false);
|
|
|
|
var progress = new Progress<double>();
|
|
|
|
await ValidateChildren(progress, CancellationToken.None).ConfigureAwait(false);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Marks the item as either played or unplayed
|
|
/// </summary>
|
|
/// <param name="user">The user.</param>
|
|
/// <param name="wasPlayed">if set to <c>true</c> [was played].</param>
|
|
/// <param name="userManager">The user manager.</param>
|
|
/// <returns>Task.</returns>
|
|
public override async Task SetPlayedStatus(User user, bool wasPlayed, IUserManager userManager)
|
|
{
|
|
await base.SetPlayedStatus(user, wasPlayed, userManager).ConfigureAwait(false);
|
|
|
|
// Now sweep through recursively and update status
|
|
var tasks = GetChildren(user).Select(c => c.SetPlayedStatus(user, wasPlayed, userManager));
|
|
|
|
await Task.WhenAll(tasks).ConfigureAwait(false);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Finds an item by path, recursively
|
|
/// </summary>
|
|
/// <param name="path">The path.</param>
|
|
/// <returns>BaseItem.</returns>
|
|
/// <exception cref="System.ArgumentNullException"></exception>
|
|
public BaseItem FindByPath(string path)
|
|
{
|
|
if (string.IsNullOrEmpty(path))
|
|
{
|
|
throw new ArgumentNullException();
|
|
}
|
|
|
|
try
|
|
{
|
|
if (ResolveArgs.PhysicalLocations.Contains(path, StringComparer.OrdinalIgnoreCase))
|
|
{
|
|
return this;
|
|
}
|
|
}
|
|
catch (IOException ex)
|
|
{
|
|
Logger.ErrorException("Error getting ResolveArgs for {0}", ex, Path);
|
|
}
|
|
|
|
//this should be functionally equivilent to what was here since it is IEnum and works on a thread-safe copy
|
|
return RecursiveChildren.FirstOrDefault(i =>
|
|
{
|
|
try
|
|
{
|
|
return i.ResolveArgs.PhysicalLocations.Contains(path, StringComparer.OrdinalIgnoreCase);
|
|
}
|
|
catch (IOException ex)
|
|
{
|
|
Logger.ErrorException("Error getting ResolveArgs for {0}", ex, Path);
|
|
return false;
|
|
}
|
|
});
|
|
}
|
|
}
|
|
}
|