Fix a bug that packages were not loaded

Author: ghost1372

src/HandyWinget/Assets/Enums/IdentifyPackageMode.cs

@@ -9,10 +9,10 @@ public enum IdentifyPackageMode
         [Description("Off (Fast)")] 
         Off,
 
-        [Description("Internal Method (Normal)")]
+        [Description("Internal Method")]
         Internal,
 
-        [Description("Winget-cli Method (Slow)")]
+        [Description("Winget-cli Method")]
         Wingetcli
     }
 }

src/HandyWinget/Assets/ISettings.cs

@@ -22,7 +22,7 @@ public class ISettings : JsonSettings
         public virtual bool GroupByPublisher { get; set; } = false;
         public virtual DataGridRowDetailsVisibilityMode ShowExtraDetails { get; set; } = DataGridRowDetailsVisibilityMode.Collapsed;
         public virtual NavigationViewPaneDisplayMode PaneDisplayMode { get; set; } = NavigationViewPaneDisplayMode.Top;
-        public virtual InstallMode InstallMode { get; set; } = InstallMode.Wingetcli;
+        public virtual InstallMode InstallMode { get; set; } = InstallMode.Internal;
         public virtual IdentifyPackageMode IdentifyPackageMode { get; set; } = IdentifyPackageMode.Off;
         public virtual ApplicationTheme Theme { get; set; } = ApplicationTheme.Light;
         public virtual Brush Accent { get; set; }

src/HandyWinget/MainWindow.xaml.cs

@@ -145,7 +145,7 @@ private void OpenTerminal_Click(object sender, RoutedEventArgs e)
 
         private void appBarRefresh_Click(object sender, RoutedEventArgs e)
         {
-            Packages.Instance.LoadManifests(true);
+            Packages.Instance.DownloadManifests(true);
         }
 
         private void appBarExport_Click(object sender, RoutedEventArgs e)

src/HandyWinget/Views/Packages.xaml.cs

@@ -50,11 +50,11 @@ public Packages()
             BindingOperations.EnableCollectionSynchronization(DataList, Lock);
             BindingOperations.EnableCollectionSynchronization(_temoList, Lock);
             BindingOperations.EnableCollectionSynchronization(_tempVersions, Lock);
-            LoadManifests();
-            InitSettings();
+            DownloadManifests();
+            SetDataListGrouping();
         }
 
-        private void InitSettings()
+        private void SetDataListGrouping()
         {
             dataGrid.RowDetailsVisibilityMode = Settings.ShowExtraDetails;
 
@@ -69,11 +69,8 @@ private void InitSettings()
             }
         }
 
-        public async void LoadManifests(bool IsRefresh = false)
+        public async void DownloadManifests(bool IsRefresh = false)
         {
-            int _totalmanifestsCount = 0;
-            int _currentManifestCount = 0;
-
             DataList?.Clear();
             _temoList?.Clear();
             _tempVersions?.Clear();
@@ -83,29 +80,40 @@ public async void LoadManifests(bool IsRefresh = false)
             tgCancelDownload.Visibility = Visibility.Collapsed;
 
             MainWindow.Instance.CommandButtonsVisibility(Visibility.Collapsed);
-
-            if (Helper.IsConnectedToInternet())
+            bool _isConnected = Helper.IsConnectedToInternet();
+            if ((_isConnected && !Directory.Exists(Consts.ManifestPath)) || (_isConnected && IsRefresh is true))
             {
-                if (!Directory.Exists(Consts.ManifestPath) || IsRefresh is true)
+                if (IsRefresh)
                 {
-                    if (IsRefresh)
-                    {
-                        txtStatus.Text = "Refreshing Packages...";
-                    }
-                    var manifestUrl = Consts.WingetPkgsRepository;
+                    txtStatus.Text = "Refreshing Packages...";
+                }
+                var manifestUrl = Consts.WingetPkgsRepository;
 
-                    WebClient client = new WebClient();
+                WebClient client = new WebClient();
 
-                    client.DownloadFileCompleted += Client_DownloadFileCompleted;
-                    client.DownloadProgressChanged += Client_DownloadProgressChanged;
-                    await client.DownloadFileTaskAsync(new Uri(manifestUrl), Consts.RootPath + @"\winget-pkgs-master.zip");
+                client.DownloadFileCompleted += Client_DownloadFileCompleted;
+                client.DownloadProgressChanged += Client_DownloadProgressChanged;
+                await client.DownloadFileTaskAsync(new Uri(manifestUrl), Consts.RootPath + @"\winget-pkgs-master.zip");
+                
+            }
+            else if (Directory.Exists(Consts.ManifestPath))
+            {
+                if (!_isConnected && IsRefresh)
+                {
+                    Growl.WarningGlobal("Unable to connect to the Internet, we Load local packages.");
                 }
+                LoadLocalManifests();
             }
             else
             {
                 Growl.ErrorGlobal("Unable to connect to the Internet");
             }
+        }
 
+        private async void LoadLocalManifests()
+        {
+            int _totalmanifestsCount = 0;
+            int _currentManifestCount = 0;
             if (Directory.Exists(Consts.ManifestPath))
             {
                 prgStatus.IsIndeterminate = false;
@@ -277,6 +285,7 @@ await Task.Run(()=> {
                     }
                 }
             });
+            LoadLocalManifests();
         }
 
         private async void tgCancelDownload_Checked(object sender, RoutedEventArgs e)