Async core refactor

src/Providers/FileTime.Providers.Smb/SmbFolder.cs

@@ -1,3 +1,4 @@
+using AsyncEvent;
 using FileTime.Core.Models;
 using FileTime.Core.Providers;
 using SMBLibrary;
@@ -10,43 +11,9 @@ namespace FileTime.Providers.Smb
         private IReadOnlyList<IItem>? _items;
         private IReadOnlyList<IContainer>? _containers;
         private IReadOnlyList<IElement>? _elements;
-        private Func<ISMBClient> _getSmbClient;
         private readonly SmbShare _smbShare;
         private readonly IContainer? _parent;
 
-        public IReadOnlyList<IItem> Items
-        {
-            get
-            {
-                if (_items == null) Refresh();
-                return _items!;
-            }
-
-            private set => _items = value;
-        }
-
-        public IReadOnlyList<IContainer> Containers
-        {
-            get
-            {
-                if (_containers == null) Refresh();
-                return _containers!;
-            }
-
-            private set => _containers = value;
-        }
-
-        public IReadOnlyList<IElement> Elements
-        {
-            get
-            {
-                if (_elements == null) Refresh();
-                return _elements!;
-            }
-
-            private set => _elements = value;
-        }
-
         public string Name { get; }
 
         public string? FullName { get; }
@@ -56,39 +23,33 @@ namespace FileTime.Providers.Smb
         public SmbContentProvider Provider { get; }
         IContentProvider IItem.Provider => Provider;
 
-        public event EventHandler? Refreshed;
+        public AsyncEventHandler Refreshed { get; } = new();
 
-        public SmbFolder(string name, SmbContentProvider contentProvider, SmbShare smbShare, IContainer parent, Func<ISMBClient> getSmbClient)
+        public SmbFolder(string name, SmbContentProvider contentProvider, SmbShare smbShare, IContainer parent)
         {
             _parent = parent;
-            _getSmbClient = getSmbClient;
+            _smbShare = smbShare;
 
             Name = name;
             FullName = parent?.FullName == null ? Name : parent.FullName + Constants.SeparatorChar + Name;
             Provider = contentProvider;
-            _smbShare = smbShare;
         }
 
-        public IContainer CreateContainer(string name)
+        public Task<IContainer> CreateContainer(string name)
         {
             throw new NotImplementedException();
         }
 
-        public IElement CreateElement(string name)
+        public Task<IElement> CreateElement(string name)
         {
             throw new NotImplementedException();
         }
 
-        public void Delete()
-        {
-            throw new NotImplementedException();
-        }
-
-        public IItem? GetByPath(string path)
+        public async Task<IItem?> GetByPath(string path)
         {
             var paths = path.Split(Constants.SeparatorChar);
 
-            var item = Items.FirstOrDefault(i => i.Name == paths[0]);
+            var item = (await GetItems())?.FirstOrDefault(i => i.Name == paths[0]);
 
             if (paths.Length == 1)
             {
@@ -97,7 +58,7 @@ namespace FileTime.Providers.Smb
 
             if (item is IContainer container)
             {
-                return container.GetByPath(string.Join(Constants.SeparatorChar, paths.Skip(1)));
+                return await container.GetByPath(string.Join(Constants.SeparatorChar, paths.Skip(1)));
             }
 
             return null;
@@ -105,12 +66,17 @@ namespace FileTime.Providers.Smb
 
         public IContainer? GetParent() => _parent;
 
-        public bool IsExists(string name)
+        public Task<bool> IsExists(string name)
         {
             throw new NotImplementedException();
         }
 
-        public void Refresh()
+        public Task Delete()
+        {
+            throw new NotImplementedException();
+        }
+
+        public async Task Refresh()
         {
             var containers = new List<IContainer>();
             var elements = new List<IElement>();
@@ -118,7 +84,7 @@ namespace FileTime.Providers.Smb
             try
             {
                 var path = FullName![(_smbShare.FullName!.Length + 1)..];
-                (containers, elements) = _smbShare.ListFolder(this, _smbShare.Name, path);
+                (containers, elements) = await _smbShare.ListFolder(this, _smbShare.Name, path);
             }
             catch { }
 
@@ -126,7 +92,23 @@ namespace FileTime.Providers.Smb
             _elements = elements.AsReadOnly();
 
             _items = _containers.Cast<IItem>().Concat(_elements).ToList().AsReadOnly();
-            Refreshed?.Invoke(this, EventArgs.Empty);
+            await Refreshed?.InvokeAsync(this, AsyncEventArgs.Empty);
+        }
+
+        public async Task<IReadOnlyList<IItem>?> GetItems(CancellationToken token = default)
+        {
+            if (_items == null) await Refresh();
+            return _items;
+        }
+        public async Task<IReadOnlyList<IContainer>?> GetContainers(CancellationToken token = default)
+        {
+            if (_containers == null) await Refresh();
+            return _containers;
+        }
+        public async Task<IReadOnlyList<IElement>?> GetElements(CancellationToken token = default)
+        {
+            if (_elements == null) await Refresh();
+            return _elements;
         }
     }
 }