Enhance update functionality and logging

UniGetUI.iss

@@ -109,6 +109,7 @@ procedure KillRunningApps;
 begin
     TaskKill('WingetUI.exe');
     TaskKill('UniGetUI.exe');
+    TaskKill('UniGetUI.Avalonia.exe');
 end;
 
 function CmdLineParamExists(const Value: string): Boolean;
@@ -236,3 +237,4 @@ Filename: "{app}\{#MyAppExeName}"; Parameters: "--migrate-wingetui-to-unigetui";
 ; Filename: "{app}\{#MyAppExeName}"; Parameters: "--uninstall-unigetui"; Flags: skipifdoesntexist runhidden;
 Filename: {sys}\taskkill.exe; Parameters: "/f /im WingetUI.exe"; Flags: skipifdoesntexist runhidden; RunOnceId: "KillWingetUI"
 Filename: {sys}\taskkill.exe; Parameters: "/f /im UniGetUI.exe"; Flags: skipifdoesntexist runhidden; RunOnceId: "KillUniGetUI"
+Filename: {sys}\taskkill.exe; Parameters: "/f /im UniGetUI.Avalonia.exe"; Flags: skipifdoesntexist runhidden; RunOnceId: "KillUniGetUIAvalonia"

src/UniGetUI.Avalonia/ViewModels/MainWindowViewModel.cs

@@ -187,6 +187,7 @@ public MainWindowViewModel()
 
         AvaloniaAutoUpdater.UpdateAvailable += version => Dispatcher.UIThread.Post(() =>
         {
+            UpdatesBanner.Severity = InfoBarSeverity.Success;
             UpdatesBanner.Title = CoreTools.Translate("UniGetUI {0} is ready to be installed.", version);
             UpdatesBanner.Message = CoreTools.Translate("The update process will start after closing UniGetUI");
             UpdatesBanner.ActionButtonText = CoreTools.Translate("Update now");
@@ -195,6 +196,24 @@ public MainWindowViewModel()
             UpdatesBanner.IsOpen = true;
         });
 
+        AvaloniaAutoUpdater.StatusChanged += status => Dispatcher.UIThread.Post(() =>
+        {
+            UpdatesBanner.Severity = status.Severity;
+            UpdatesBanner.Title = status.Title;
+            UpdatesBanner.Message = status.Message;
+            UpdatesBanner.ActionButtonText = status.ActionButtonText ?? "";
+            UpdatesBanner.ActionButtonCommand = status.ActionButtonAction is { } action
+                ? new CommunityToolkit.Mvvm.Input.RelayCommand(action)
+                : null;
+            UpdatesBanner.IsClosable = status.IsClosable;
+            UpdatesBanner.IsOpen = true;
+        });
+
+        // If the previous update attempt was killed mid-flow (typically by the
+        // installer terminating us during file replacement), surface a banner now
+        // that subscriptions are wired up.
+        AvaloniaAutoUpdater.CheckForOrphanedUpdateAttempt();
+
         // Keep OperationsPanelVisible in sync with the live operations list
         Operations.CollectionChanged += (_, _) =>
             OperationsPanelVisible = Operations.Count > 0;

src/UniGetUI.Avalonia/ViewModels/SidebarViewModel.cs

@@ -1,5 +1,6 @@
 using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Input;
+using UniGetUI.Avalonia.Infrastructure;
 using UniGetUI.Avalonia.Views;
 using UniGetUI.Core.Data;
 using UniGetUI.Core.SettingsEngine;
@@ -83,6 +84,10 @@ public void RequestNavigation(string? pageName)
             NavigationRequested?.Invoke(this, page);
     }
 
+    [RelayCommand]
+    private static Task CheckForUpdates() =>
+        AvaloniaAutoUpdater.CheckAndInstallUpdatesAsync(autoLaunch: false, manualCheck: true);
+
     public void SelectNavButtonForPage(PageType page) =>
         SelectedPageType = page;
 

src/UniGetUI.Avalonia/Views/SidebarView.axaml

@@ -231,6 +231,9 @@
                         <MenuItem Header="{t:Translate Release notes}" Command="{Binding RequestNavigationCommand}" CommandParameter="ReleaseNotes">
                             <MenuItem.Icon><controls:SvgIcon Path="avares://UniGetUI.Avalonia/Assets/Symbols/megaphone.svg" Width="16" Height="16"/></MenuItem.Icon>
                         </MenuItem>
+                        <MenuItem Header="{t:Translate Check for UniGetUI updates}" Command="{Binding CheckForUpdatesCommand}">
+                            <MenuItem.Icon><controls:SvgIcon Path="avares://UniGetUI.Avalonia/Assets/Symbols/update.svg" Width="16" Height="16"/></MenuItem.Icon>
+                        </MenuItem>
                         <Separator/>
                         <MenuItem Header="{t:Translate Help}" Command="{Binding RequestNavigationCommand}" CommandParameter="Help">
                             <MenuItem.Icon><controls:SvgIcon Path="avares://UniGetUI.Avalonia/Assets/Symbols/help.svg" Width="16" Height="16"/></MenuItem.Icon>