repo creation with initial code after cloning public repo

MediaBrowser.Controller/Entities/AggregateFolder.cs

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+#nullable disable
+
+#pragma warning disable CA1819, CS1591
+
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text.Json.Serialization;
+using System.Threading;
+using System.Threading.Tasks;
+using Jellyfin.Extensions;
+using MediaBrowser.Controller.IO;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.Providers;
+using MediaBrowser.Model.IO;
+
+namespace MediaBrowser.Controller.Entities
+{
+    /// <summary>
+    /// Specialized folder that can have items added to it's children by external entities.
+    /// Used for our RootFolder so plugins can add items.
+    /// </summary>
+    public class AggregateFolder : Folder
+    {
+        private readonly Lock _childIdsLock = new();
+
+        /// <summary>
+        /// The _virtual children.
+        /// </summary>
+        private readonly ConcurrentBag<BaseItem> _virtualChildren = new ConcurrentBag<BaseItem>();
+        private bool _requiresRefresh;
+        private Guid[] _childrenIds = null;
+
+        public AggregateFolder()
+        {
+            PhysicalLocationsList = Array.Empty<string>();
+        }
+
+        /// <summary>
+        /// Gets the virtual children.
+        /// </summary>
+        /// <value>The virtual children.</value>
+        public ConcurrentBag<BaseItem> VirtualChildren => _virtualChildren;
+
+        [JsonIgnore]
+        public override bool IsPhysicalRoot => true;
+
+        [JsonIgnore]
+        public override bool SupportsPlayedStatus => false;
+
+        [JsonIgnore]
+        public override string[] PhysicalLocations => PhysicalLocationsList;
+
+        public string[] PhysicalLocationsList { get; set; }
+
+        public override bool CanDelete()
+        {
+            return false;
+        }
+
+        protected override FileSystemMetadata[] GetFileSystemChildren(IDirectoryService directoryService)
+        {
+            return CreateResolveArgs(directoryService, true).FileSystemChildren;
+        }
+
+        protected override IReadOnlyList<BaseItem> LoadChildren()
+        {
+            lock (_childIdsLock)
+            {
+                if (_childrenIds is null || _childrenIds.Length == 0)
+                {
+                    var list = base.LoadChildren();
+                    _childrenIds = list.Select(i => i.Id).ToArray();
+                    return list;
+                }
+
+                return _childrenIds.Select(LibraryManager.GetItemById).Where(i => i is not null).ToList();
+            }
+        }
+
+        private void ClearCache()
+        {
+            lock (_childIdsLock)
+            {
+                _childrenIds = null;
+            }
+        }
+
+        public override bool RequiresRefresh()
+        {
+            var changed = base.RequiresRefresh() || _requiresRefresh;
+
+            if (!changed)
+            {
+                var locations = PhysicalLocations;
+
+                var newLocations = CreateResolveArgs(new DirectoryService(FileSystem), false).PhysicalLocations;
+
+                if (!locations.SequenceEqual(newLocations))
+                {
+                    changed = true;
+                }
+            }
+
+            return changed;
+        }
+
+        public override bool BeforeMetadataRefresh(bool replaceAllMetadata)
+        {
+            ClearCache();
+
+            var changed = base.BeforeMetadataRefresh(replaceAllMetadata) || _requiresRefresh;
+            _requiresRefresh = false;
+            return changed;
+        }
+
+        private ItemResolveArgs CreateResolveArgs(IDirectoryService directoryService, bool setPhysicalLocations)
+        {
+            ClearCache();
+
+            var path = ContainingFolderPath;
+
+            var args = new ItemResolveArgs(ConfigurationManager.ApplicationPaths, LibraryManager)
+            {
+                FileInfo = FileSystem.GetDirectoryInfo(path)
+            };
+
+            // Gather child folder and files
+            if (args.IsDirectory)
+            {
+                // When resolving the root, we need it's grandchildren (children of user views)
+                var flattenFolderDepth = 2;
+
+                var files = FileData.GetFilteredFileSystemEntries(directoryService, args.Path, FileSystem, CollectionFolder.ApplicationHost, Logger, args, flattenFolderDepth: flattenFolderDepth, resolveShortcuts: true);
+
+                // Need to remove subpaths that may have been resolved from shortcuts
+                // Example: if \\server\movies exists, then strip out \\server\movies\action
+                files = LibraryManager.NormalizeRootPathList(files).ToArray();
+
+                args.FileSystemChildren = files;
+            }
+
+            _requiresRefresh = _requiresRefresh || !args.PhysicalLocations.SequenceEqual(PhysicalLocations);
+            if (setPhysicalLocations)
+            {
+                PhysicalLocationsList = args.PhysicalLocations;
+            }
+
+            return args;
+        }
+
+        protected override IEnumerable<BaseItem> GetNonCachedChildren(IDirectoryService directoryService)
+        {
+            return base.GetNonCachedChildren(directoryService).Concat(_virtualChildren);
+        }
+
+        protected override async Task ValidateChildrenInternal(IProgress<double> progress, bool recursive, bool refreshChildMetadata, bool allowRemoveRoot, MetadataRefreshOptions refreshOptions, IDirectoryService directoryService, CancellationToken cancellationToken)
+        {
+            ClearCache();
+
+            await base.ValidateChildrenInternal(progress, recursive, refreshChildMetadata, allowRemoveRoot, refreshOptions, directoryService, cancellationToken)
+                .ConfigureAwait(false);
+
+            ClearCache();
+        }
+
+        /// <summary>
+        /// Adds the virtual child.
+        /// </summary>
+        /// <param name="child">The child.</param>
+        /// <exception cref="ArgumentNullException">Throws if child is null.</exception>
+        public void AddVirtualChild(BaseItem child)
+        {
+            ArgumentNullException.ThrowIfNull(child);
+
+            _virtualChildren.Add(child);
+        }
+
+        /// <summary>
+        /// Finds the virtual child.
+        /// </summary>
+        /// <param name="id">The id.</param>
+        /// <returns>BaseItem.</returns>
+        /// <exception cref="ArgumentNullException">The id is empty.</exception>
+        public BaseItem FindVirtualChild(Guid id)
+        {
+            if (id.IsEmpty())
+            {
+                throw new ArgumentNullException(nameof(id));
+            }
+
+            foreach (var child in _virtualChildren)
+            {
+                if (child.Id.Equals(id))
+                {
+                    return child;
+                }
+            }
+
+            return null;
+        }
+    }
+}