Made ScrollViewer automatically scroll to last move

Author: szv

src/CodeBreaker.Avalonia/CodeBreaker.Avalonia/Views/Pages/GamePage.axaml.cs

@@ -2,22 +2,38 @@
 using Avalonia.Interactivity;
 using Codebreaker.ViewModels;
 using Codebreaker.ViewModels.Contracts.Services;
+using CommunityToolkit.Mvvm.Messaging;
 
 namespace CodeBreaker.Avalonia.Views.Pages;
 
-public partial class GamePage : UserControl
+public partial class GamePage : UserControl, IRecipient<GameMoveMessage>
 {
     private readonly INavigationService _navigationService;
 
     public GamePage()
     {
         DataContext = App.Current.GetService<GamePageViewModel>();
-        InitializeComponent();
         _navigationService = App.Current.GetService<INavigationService>();
+        InitializeComponent();
+        WeakReferenceMessenger.Default.Register(this);
+    }
+
+    protected override void OnUnloaded(RoutedEventArgs e)
+    {
+        WeakReferenceMessenger.Default.UnregisterAll(this);
     }
 
     public GamePageViewModel ViewModel => (GamePageViewModel)DataContext!;
 
+    public void Receive(GameMoveMessage message)
+    {
+        if (message.GameMoveValue is not GameMoveValue.Completed)
+            return;
+
+        pegScrollViewer.UpdateLayout();
+        pegScrollViewer.ScrollToEnd();
+    }
+
     private void ToTestPageButtonClicked(object? sender, RoutedEventArgs e)
     {
         _navigationService.NavigateToAsync("TestPage");