Add clean cache option & Add exception handler for cleaning folders

Flow.Launcher/Languages/en.xaml

@@ -325,6 +325,9 @@
     <system:String x:Key="logfolder">Log Folder</system:String>
     <system:String x:Key="clearlogfolder">Clear Logs</system:String>
     <system:String x:Key="clearlogfolderMessage">Are you sure you want to delete all logs?</system:String>
+    <system:String x:Key="clearcachefolder">Clear Caches</system:String>
+    <system:String x:Key="clearcachefolderMessage">Are you sure you want to delete all caches?</system:String>
+    <system:String x:Key="clearfolderfailMessage">Failed to clear part of folders and files. Please see log file for more information</system:String>
     <system:String x:Key="welcomewindow">Wizard</system:String>
     <system:String x:Key="userdatapath">User Data Location</system:String>
     <system:String x:Key="userdatapathToolTip">User settings and installed plugins are saved in the user data folder. This location may vary depending on whether it's in portable mode or not.</system:String>

Flow.Launcher/SettingPages/ViewModels/SettingsPaneAboutViewModel.cs

@@ -6,7 +6,6 @@
 using System.Windows;
 using CommunityToolkit.Mvvm.Input;
 using Flow.Launcher.Core;
-using Flow.Launcher.Core.Resource;
 using Flow.Launcher.Infrastructure;
 using Flow.Launcher.Infrastructure.Logger;
 using Flow.Launcher.Infrastructure.UserSettings;
@@ -16,6 +15,8 @@ namespace Flow.Launcher.SettingPages.ViewModels;
 
 public partial class SettingsPaneAboutViewModel : BaseModel
 {
+    private static readonly string ClassName = nameof(SettingsPaneAboutViewModel);
+
     private readonly Settings _settings;
     private readonly Updater _updater;
 
@@ -24,7 +25,16 @@ public string LogFolderSize
         get
         {
             var size = GetLogFiles().Sum(file => file.Length);
-            return $"{InternationalizationManager.Instance.GetTranslation("clearlogfolder")} ({BytesToReadableString(size)})";
+            return $"{App.API.GetTranslation("clearlogfolder")} ({BytesToReadableString(size)})";
+        }
+    }
+
+    public string CacheFolderSize
+    {
+        get
+        {
+            var size = GetCacheFiles().Sum(file => file.Length);
+            return $"{App.API.GetTranslation("clearcachefolder")} ({BytesToReadableString(size)})";
         }
     }
 
@@ -42,7 +52,7 @@ public string LogFolderSize
     };
 
     public string ActivatedTimes => string.Format(
-        InternationalizationManager.Instance.GetTranslation("about_activate_times"),
+        App.API.GetTranslation("about_activate_times"),
         _settings.ActivateTimes
     );
 
@@ -88,14 +98,35 @@ private void OpenWelcomeWindow()
     private void AskClearLogFolderConfirmation()
     {
         var confirmResult = App.API.ShowMsgBox(
-            InternationalizationManager.Instance.GetTranslation("clearlogfolderMessage"),
-            InternationalizationManager.Instance.GetTranslation("clearlogfolder"),
+            App.API.GetTranslation("clearlogfolderMessage"),
+            App.API.GetTranslation("clearlogfolder"),
             MessageBoxButton.YesNo
         );
 
         if (confirmResult == MessageBoxResult.Yes)
         {
-            ClearLogFolder();
+            if (!ClearLogFolder())
+            {
+                App.API.ShowMsgBox(App.API.GetTranslation("clearfolderfailMessage"));
+            }
+        }
+    }
+
+    [RelayCommand]
+    private void AskClearCacheFolderConfirmation()
+    {
+        var confirmResult = App.API.ShowMsgBox(
+            App.API.GetTranslation("clearcachefolderMessage"),
+            App.API.GetTranslation("clearcachefolder"),
+            MessageBoxButton.YesNo
+        );
+
+        if (confirmResult == MessageBoxResult.Yes)
+        {
+            if (!ClearCacheFolder())
+            {
+                App.API.ShowMsgBox(App.API.GetTranslation("clearfolderfailMessage"));
+            }
         }
     }
 
@@ -113,29 +144,54 @@ private void OpenParentOfSettingsFolder(object parameter)
         App.API.OpenDirectory(parentFolderPath);
     }
 
-
     [RelayCommand]
     private void OpenLogsFolder()
     {
         App.API.OpenDirectory(GetLogDir(Constant.Version).FullName);
     }
 
     [RelayCommand]
-    private Task UpdateApp() => _updater.UpdateAppAsync(false);
+    private Task UpdateAppAsync() => _updater.UpdateAppAsync(false);
 
-    private void ClearLogFolder()
+    private bool ClearLogFolder()
     {
+        var success = true;
         var logDirectory = GetLogDir();
         var logFiles = GetLogFiles();
 
-        logFiles.ForEach(f => f.Delete());
+        logFiles.ForEach(f =>
+        {
+            try
+            {
+                f.Delete();
+            }
+            catch (Exception e)
+            {
+                App.API.LogException(ClassName, $"Failed to delete log file: {f.Name}", e);
+                success = false;
+            }
+        });
 
         logDirectory.EnumerateDirectories("*", SearchOption.TopDirectoryOnly)
+            // Do not clean log files of current version
             .Where(dir => !Constant.Version.Equals(dir.Name))
             .ToList()
-            .ForEach(dir => dir.Delete());
+            .ForEach(dir =>
+            {
+                try
+                {
+                    dir.Delete(true);
+                }
+                catch (Exception e)
+                {
+                    App.API.LogException(ClassName, $"Failed to delete log directory: {dir.Name}", e);
+                    success = false;
+                }
+            });
 
         OnPropertyChanged(nameof(LogFolderSize));
+
+        return success;
     }
 
     private static DirectoryInfo GetLogDir(string version = "")
@@ -148,6 +204,55 @@ private static List<FileInfo> GetLogFiles(string version = "")
         return GetLogDir(version).EnumerateFiles("*", SearchOption.AllDirectories).ToList();
     }
 
+    private bool ClearCacheFolder()
+    {
+        var success = true;
+        var cacheDirectory = GetCacheDir();
+        var cacheFiles = GetCacheFiles();
+
+        cacheFiles.ForEach(f =>
+        {
+            try
+            {
+                f.Delete();
+            }
+            catch (Exception e)
+            {
+                App.API.LogException(ClassName, $"Failed to delete cache file: {f.Name}", e);
+                success = false;
+            }
+        });
+
+        cacheDirectory.EnumerateDirectories("*", SearchOption.TopDirectoryOnly)
+            .ToList()
+            .ForEach(dir =>
+            {
+                try
+                {
+                    dir.Delete(true);
+                }
+                catch (Exception e)
+                {
+                    App.API.LogException(ClassName, $"Failed to delete cache directory: {dir.Name}", e);
+                    success = false;
+                }
+            });
+
+        OnPropertyChanged(nameof(CacheFolderSize));
+
+        return success;
+    }
+
+    private static DirectoryInfo GetCacheDir()
+    {
+        return new DirectoryInfo(DataLocation.CacheDirectory);
+    }
+
+    private static List<FileInfo> GetCacheFiles()
+    {
+        return GetCacheDir().EnumerateFiles("*", SearchOption.AllDirectories).ToList();
+    }
+
     private static string BytesToReadableString(long bytes)
     {
         const int scale = 1024;
@@ -156,8 +261,7 @@ private static string BytesToReadableString(long bytes)
 
         foreach (string order in orders)
         {
-            if (bytes > max)
-                return $"{decimal.Divide(bytes, max):##.##} {order}";
+            if (bytes > max) return $"{decimal.Divide(bytes, max):##.##} {order}";
 
             max /= scale;
         }

Flow.Launcher/SettingPages/Views/SettingsPaneAbout.xaml

@@ -90,6 +90,10 @@
                 Margin="0 12 0 0"
                 Icon="">
                 <StackPanel Orientation="Horizontal">
+                    <Button
+                        Margin="0 0 12 0"
+                        Command="{Binding AskClearCacheFolderConfirmationCommand}"
+                        Content="{Binding CacheFolderSize, Mode=OneWay}" />
                     <Button
                         Margin="0 0 12 0"
                         Command="{Binding AskClearLogFolderConfirmationCommand}"