refresh data folder size after deleting server cache

src/Snap.Hutao/Snap.Hutao/ViewModel/Setting/FolderViewModel.cs

@@ -10,37 +10,44 @@ namespace Snap.Hutao.ViewModel.Setting;
 
 internal sealed partial class FolderViewModel : ObservableObject
 {
+    private readonly ITaskContext taskContext;
     private readonly string folder;
     private string? size;
 
     public FolderViewModel(ITaskContext taskContext, string folder)
     {
+        this.taskContext = taskContext;
         this.folder = folder;
 
         SetFolderSizeAsync().SafeForget();
-
-        async ValueTask SetFolderSizeAsync()
-        {
-            await taskContext.SwitchToBackgroundAsync();
-            long totalSize = 0;
-
-            foreach (string file in Directory.EnumerateFiles(folder, "*.*", SearchOption.AllDirectories))
-            {
-                totalSize += new FileInfo(file).Length;
-            }
-
-            await taskContext.SwitchToMainThreadAsync();
-            Size = SH.FormatViewModelSettingFolderSizeDescription(Converters.ToFileSizeString(totalSize));
-        }
     }
 
     public string Folder { get => folder; }
 
     public string? Size { get => size; set => SetProperty(ref size, value); }
 
+    public async ValueTask RefreshFolderSizeAsync()
+    {
+        await SetFolderSizeAsync().ConfigureAwait(false);
+    }
+
     [Command("OpenFolderCommand")]
     private async Task OpenDataFolderAsync()
     {
         await Launcher.LaunchFolderPathAsync(folder);
     }
+
+    private async ValueTask SetFolderSizeAsync()
+    {
+        await taskContext.SwitchToBackgroundAsync();
+        long totalSize = 0;
+
+        foreach (string file in Directory.EnumerateFiles(folder, "*.*", SearchOption.AllDirectories))
+        {
+            totalSize += new FileInfo(file).Length;
+        }
+
+        await taskContext.SwitchToMainThreadAsync();
+        Size = SH.FormatViewModelSettingFolderSizeDescription(Converters.ToFileSizeString(totalSize));
+    }
 }

src/Snap.Hutao/Snap.Hutao/ViewModel/Setting/SettingViewModel.cs

@@ -284,6 +284,7 @@ internal sealed partial class SettingViewModel : Abstraction.ViewModel
                 Directory.Delete(cacheFolder, true);
             }
 
+            DataFolderView?.RefreshFolderSizeAsync().SafeForget();
             infoBarService.Information(SH.ViewModelSettingActionComplete);
         }
     }