finish downloader

EnvyUpdate/DashboardPage.xaml

@@ -11,6 +11,7 @@
       Title="DashboardPage">
 
     <Grid Margin="8,0,8,8">
+        <Grid>
             <Grid.RowDefinitions>
                 <RowDefinition />
                 <RowDefinition Height="Auto"/>
@@ -82,4 +83,6 @@
                 <ui:ToggleSwitch x:Name="switchAutostart" IsChecked="False" Click="switchAutostart_Click" />
             </ui:CardControl>
         </Grid>
+        <ui:Snackbar x:Name="snackbarInfo" Timeout="0"/>
+    </Grid>
 </ui:UiPage>

EnvyUpdate/DashboardPage.xaml.cs

@@ -8,6 +8,8 @@ using System.Text.RegularExpressions;
 using System.Threading;
 using System.Windows;
 using System.Windows.Threading;
+using Wpf.Ui.Controls;
+using MessageBox = System.Windows.MessageBox;
 
 namespace EnvyUpdate
 {
@@ -352,7 +354,7 @@ namespace EnvyUpdate
                 client.Headers["User-Agent"] = "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0";
                 client.DownloadProgressChanged += new DownloadProgressChangedEventHandler(client_DownloadProgressChanged);
                 client.DownloadFileCompleted += new AsyncCompletedEventHandler(client_DownloadFileCompleted);
-                client.DownloadFileAsync(new Uri(Util.GetDirectDownload(gpuURL)), Path.Combine(GlobalVars.exedirectory, "nvidia-installer.exe"));
+                client.DownloadFileAsync(new Uri(Util.GetDirectDownload(gpuURL)), Path.Combine(GlobalVars.exedirectory, "nvidia-installer.exe.downloading"));
             });
             thread.Start();
         }
@@ -369,9 +371,34 @@ namespace EnvyUpdate
         void client_DownloadFileCompleted(object sender, AsyncCompletedEventArgs e)
         {
             Application.Current.Dispatcher.Invoke(new Action(() => {
+                buttonDownload.IsEnabled = true;
                 progressbarDownload.Visibility = Visibility.Collapsed;
-                buttonDownload.Icon = Wpf.Ui.Common.SymbolRegular.CheckmarkCircle24;
+            }));
+            if (e.Error == null)
+            {
+                Application.Current.Dispatcher.Invoke(new Action(() => {
+                    showSnackbar(Wpf.Ui.Common.ControlAppearance.Success, Wpf.Ui.Common.SymbolRegular.CheckmarkCircle24, Properties.Resources.info_download_success, Properties.Resources.info_download_success_title);
+                }));
+                if (File.Exists(Path.Combine(GlobalVars.exedirectory, "nvidia-installer.exe")))
+                    File.Delete(Path.Combine(GlobalVars.exedirectory, "nvidia-installer.exe"));
+                File.Move(Path.Combine(GlobalVars.exedirectory, "nvidia-installer.exe.downloading"), Path.Combine(GlobalVars.exedirectory, "nvidia-installer.exe"));
+            }
+            else
+            {
+                File.Delete(Path.Combine(GlobalVars.exedirectory, "nvidia-installer.exe.downloading"));
+                Application.Current.Dispatcher.Invoke(new Action(() => {
+                    showSnackbar(Wpf.Ui.Common.ControlAppearance.Danger, Wpf.Ui.Common.SymbolRegular.ErrorCircle24, Properties.Resources.info_download_error, Properties.Resources.info_download_error_title);
                 }));
             }
         }
+
+        private void showSnackbar (Wpf.Ui.Common.ControlAppearance appearance, Wpf.Ui.Common.SymbolRegular icon, string message = "", string title = "")
+        {
+            snackbarInfo.Appearance = appearance;
+            snackbarInfo.Icon = icon;
+            snackbarInfo.Title = title;
+            snackbarInfo.Message = message;
+            snackbarInfo.Show();
+        }
+    }
 }

EnvyUpdate/Properties/Resources.Designer.cs

@@ -78,6 +78,42 @@ namespace EnvyUpdate.Properties {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to There was a problem downloading the driver installer. Please try again..
+        /// </summary>
+        public static string info_download_error {
+            get {
+                return ResourceManager.GetString("info_download_error", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Error while downloading.
+        /// </summary>
+        public static string info_download_error_title {
+            get {
+                return ResourceManager.GetString("info_download_error_title", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Driver installer successfully downloaded..
+        /// </summary>
+        public static string info_download_success {
+            get {
+                return ResourceManager.GetString("info_download_success", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Download successful.
+        /// </summary>
+        public static string info_download_success_title {
+            get {
+                return ResourceManager.GetString("info_download_success_title", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Preference reset..
         /// </summary>

EnvyUpdate/Properties/Resources.de.resx

@@ -123,6 +123,18 @@
   <data name="exit_confirm" xml:space="preserve">
     <value>EnvyUpdate schließen?</value>
   </data>
+  <data name="info_download_error" xml:space="preserve">
+    <value>Fehler beim Herunterladen der Treiber-Installationsdatei. Bitte versuchen Sie es erneut.</value>
+  </data>
+  <data name="info_download_error_title" xml:space="preserve">
+    <value>Fehler beim Herunterladen</value>
+  </data>
+  <data name="info_download_success" xml:space="preserve">
+    <value>Treiber-Installationsdatei erfolgreich heruntergeladen.</value>
+  </data>
+  <data name="info_download_success_title" xml:space="preserve">
+    <value>Herunterladen erfolgreich abgeschlossen</value>
+  </data>
   <data name="info_reset_caption" xml:space="preserve">
     <value>Einstellung zurückgesetzt.</value>
   </data>

EnvyUpdate/Properties/Resources.resx

@@ -123,6 +123,18 @@
   <data name="exit_confirm" xml:space="preserve">
     <value>Exit EnvyUpdate?</value>
   </data>
+  <data name="info_download_error" xml:space="preserve">
+    <value>There was a problem downloading the driver installer. Please try again.</value>
+  </data>
+  <data name="info_download_error_title" xml:space="preserve">
+    <value>Error while downloading</value>
+  </data>
+  <data name="info_download_success" xml:space="preserve">
+    <value>Driver installer successfully downloaded.</value>
+  </data>
+  <data name="info_download_success_title" xml:space="preserve">
+    <value>Download successful</value>
+  </data>
   <data name="info_reset_caption" xml:space="preserve">
     <value>Preference reset.</value>
   </data>

EnvyUpdate/Util.cs

@@ -1,4 +1,5 @@
-using IWshRuntimeLibrary;
+using EnvyUpdate.Properties;
+using IWshRuntimeLibrary;
 using Microsoft.Win32;
 using System;
 using System.Diagnostics;
@@ -7,7 +8,9 @@ using System.Linq;
 using System.Management;
 using System.Net;
 using System.Text.RegularExpressions;
+using System.Threading.Tasks;
 using System.Windows;
+using System.Windows.Controls;
 using System.Xml.Linq;
 
 namespace EnvyUpdate