372 lines
12 KiB
C#
372 lines
12 KiB
C#
#pragma warning disable CS1591
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using System;
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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.Text.Json.Serialization;
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using System.Threading;
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using System.Threading.Tasks;
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using MediaBrowser.Controller.IO;
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using MediaBrowser.Controller.Library;
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using MediaBrowser.Controller.Providers;
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using MediaBrowser.Model.Configuration;
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using MediaBrowser.Model.IO;
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using MediaBrowser.Model.Serialization;
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using Microsoft.Extensions.Logging;
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namespace MediaBrowser.Controller.Entities
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{
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/// <summary>
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/// Specialized Folder class that points to a subset of the physical folders in the system.
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/// It is created from the user-specific folders within the system root.
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/// </summary>
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public class CollectionFolder : Folder, ICollectionFolder
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{
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public static IXmlSerializer XmlSerializer { get; set; }
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public static IJsonSerializer JsonSerializer { get; set; }
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public static IServerApplicationHost ApplicationHost { get; set; }
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public CollectionFolder()
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{
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PhysicalLocationsList = Array.Empty<string>();
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PhysicalFolderIds = Array.Empty<Guid>();
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}
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[JsonIgnore]
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public override bool SupportsPlayedStatus => false;
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[JsonIgnore]
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public override bool SupportsInheritedParentImages => false;
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public override bool CanDelete()
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{
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return false;
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}
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public string CollectionType { get; set; }
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private static readonly Dictionary<string, LibraryOptions> LibraryOptions = new Dictionary<string, LibraryOptions>();
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public LibraryOptions GetLibraryOptions()
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{
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return GetLibraryOptions(Path);
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}
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private static LibraryOptions LoadLibraryOptions(string path)
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{
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try
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{
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var result = XmlSerializer.DeserializeFromFile(typeof(LibraryOptions), GetLibraryOptionsPath(path)) as LibraryOptions;
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if (result == null)
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{
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return new LibraryOptions();
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}
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foreach (var mediaPath in result.PathInfos)
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{
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if (!string.IsNullOrEmpty(mediaPath.Path))
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{
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mediaPath.Path = ApplicationHost.ExpandVirtualPath(mediaPath.Path);
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}
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}
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return result;
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}
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catch (FileNotFoundException)
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{
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return new LibraryOptions();
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}
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catch (IOException)
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{
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return new LibraryOptions();
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}
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catch (Exception ex)
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{
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Logger.LogError(ex, "Error loading library options");
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return new LibraryOptions();
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}
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}
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private static string GetLibraryOptionsPath(string path)
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{
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return System.IO.Path.Combine(path, "options.xml");
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}
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public void UpdateLibraryOptions(LibraryOptions options)
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{
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SaveLibraryOptions(Path, options);
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}
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public static LibraryOptions GetLibraryOptions(string path)
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{
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lock (LibraryOptions)
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{
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if (!LibraryOptions.TryGetValue(path, out var options))
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{
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options = LoadLibraryOptions(path);
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LibraryOptions[path] = options;
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}
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return options;
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}
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}
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public static void SaveLibraryOptions(string path, LibraryOptions options)
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{
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lock (LibraryOptions)
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{
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LibraryOptions[path] = options;
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var clone = JsonSerializer.DeserializeFromString<LibraryOptions>(JsonSerializer.SerializeToString(options));
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foreach (var mediaPath in clone.PathInfos)
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{
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if (!string.IsNullOrEmpty(mediaPath.Path))
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{
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mediaPath.Path = ApplicationHost.ReverseVirtualPath(mediaPath.Path);
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}
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}
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XmlSerializer.SerializeToFile(clone, GetLibraryOptionsPath(path));
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}
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}
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public static void OnCollectionFolderChange()
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{
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lock (LibraryOptions)
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{
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LibraryOptions.Clear();
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}
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}
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/// <summary>
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/// Allow different display preferences for each collection folder.
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/// </summary>
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/// <value>The display prefs id.</value>
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[JsonIgnore]
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public override Guid DisplayPreferencesId => Id;
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[JsonIgnore]
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public override string[] PhysicalLocations => PhysicalLocationsList;
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public override bool IsSaveLocalMetadataEnabled()
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{
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return true;
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}
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public string[] PhysicalLocationsList { get; set; }
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public Guid[] PhysicalFolderIds { get; set; }
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protected override FileSystemMetadata[] GetFileSystemChildren(IDirectoryService directoryService)
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{
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return CreateResolveArgs(directoryService, true).FileSystemChildren;
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}
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private bool _requiresRefresh;
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public override bool RequiresRefresh()
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{
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var changed = base.RequiresRefresh() || _requiresRefresh;
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if (!changed)
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{
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var locations = PhysicalLocations;
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var newLocations = CreateResolveArgs(new DirectoryService(FileSystem), false).PhysicalLocations;
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if (!locations.SequenceEqual(newLocations))
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{
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changed = true;
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}
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}
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if (!changed)
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{
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var folderIds = PhysicalFolderIds;
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var newFolderIds = GetPhysicalFolders(false).Select(i => i.Id).ToList();
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if (!folderIds.SequenceEqual(newFolderIds))
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{
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changed = true;
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}
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}
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return changed;
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}
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public override bool BeforeMetadataRefresh(bool replaceAllMetdata)
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{
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var changed = base.BeforeMetadataRefresh(replaceAllMetdata) || _requiresRefresh;
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_requiresRefresh = false;
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return changed;
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}
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public override double? GetRefreshProgress()
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{
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var folders = GetPhysicalFolders(true).ToList();
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double totalProgresses = 0;
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var foldersWithProgress = 0;
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foreach (var folder in folders)
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{
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var progress = ProviderManager.GetRefreshProgress(folder.Id);
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if (progress.HasValue)
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{
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totalProgresses += progress.Value;
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foldersWithProgress++;
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}
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}
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if (foldersWithProgress == 0)
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{
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return null;
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}
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return totalProgresses / foldersWithProgress;
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}
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protected override bool RefreshLinkedChildren(IEnumerable<FileSystemMetadata> fileSystemChildren)
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{
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return RefreshLinkedChildrenInternal(true);
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}
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private bool RefreshLinkedChildrenInternal(bool setFolders)
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{
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var physicalFolders = GetPhysicalFolders(false)
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.ToList();
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var linkedChildren = physicalFolders
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.SelectMany(c => c.LinkedChildren)
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.ToList();
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var changed = !linkedChildren.SequenceEqual(LinkedChildren, new LinkedChildComparer(FileSystem));
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LinkedChildren = linkedChildren.ToArray();
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var folderIds = PhysicalFolderIds;
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var newFolderIds = physicalFolders.Select(i => i.Id).ToArray();
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if (!folderIds.SequenceEqual(newFolderIds))
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{
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changed = true;
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if (setFolders)
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{
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PhysicalFolderIds = newFolderIds;
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}
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}
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return changed;
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}
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private ItemResolveArgs CreateResolveArgs(IDirectoryService directoryService, bool setPhysicalLocations)
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{
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var path = ContainingFolderPath;
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var args = new ItemResolveArgs(ConfigurationManager.ApplicationPaths, directoryService)
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{
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FileInfo = FileSystem.GetDirectoryInfo(path),
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Path = path,
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Parent = GetParent() as Folder,
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CollectionType = CollectionType
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};
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// Gather child folder and files
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if (args.IsDirectory)
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{
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var flattenFolderDepth = 0;
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var files = FileData.GetFilteredFileSystemEntries(directoryService, args.Path, FileSystem, ApplicationHost, Logger, args, flattenFolderDepth: flattenFolderDepth, resolveShortcuts: true);
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args.FileSystemChildren = files;
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}
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_requiresRefresh = _requiresRefresh || !args.PhysicalLocations.SequenceEqual(PhysicalLocations);
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if (setPhysicalLocations)
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{
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PhysicalLocationsList = args.PhysicalLocations;
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}
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return args;
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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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/// <param name="refreshChildMetadata">if set to <c>true</c> [refresh child metadata].</param>
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/// <param name="refreshOptions">The refresh options.</param>
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/// <param name="directoryService">The directory service.</param>
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/// <returns>Task.</returns>
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protected override Task ValidateChildrenInternal(IProgress<double> progress, CancellationToken cancellationToken, bool recursive, bool refreshChildMetadata, MetadataRefreshOptions refreshOptions, IDirectoryService directoryService)
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{
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return Task.CompletedTask;
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}
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/// <summary>
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/// Our children are actually just references to the ones in the physical root...
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/// </summary>
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/// <value>The actual children.</value>
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[JsonIgnore]
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public override IEnumerable<BaseItem> Children => GetActualChildren();
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public IEnumerable<BaseItem> GetActualChildren()
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{
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return GetPhysicalFolders(true).SelectMany(c => c.Children);
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}
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public IEnumerable<Folder> GetPhysicalFolders()
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{
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return GetPhysicalFolders(true);
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}
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private IEnumerable<Folder> GetPhysicalFolders(bool enableCache)
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{
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if (enableCache)
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{
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return PhysicalFolderIds.Select(i => LibraryManager.GetItemById(i)).OfType<Folder>();
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}
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var rootChildren = LibraryManager.RootFolder.Children
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.OfType<Folder>()
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.ToList();
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return PhysicalLocations
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.Where(i => !FileSystem.AreEqual(i, Path))
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.SelectMany(i => GetPhysicalParents(i, rootChildren))
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.GroupBy(x => x.Id)
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.Select(x => x.First());
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}
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private IEnumerable<Folder> GetPhysicalParents(string path, List<Folder> rootChildren)
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{
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var result = rootChildren
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.Where(i => FileSystem.AreEqual(i.Path, path))
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.ToList();
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if (result.Count == 0)
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{
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var folder = LibraryManager.FindByPath(path, true) as Folder;
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if (folder != null)
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{
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result.Add(folder);
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}
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}
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return result;
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}
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[JsonIgnore]
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public override bool SupportsPeople => false;
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}
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}
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