Sort scoreboard by points and update when game over

Tetris/ViewsModels/GameViewModel.cs

@@ -33,7 +33,10 @@ public class GameViewModel : INotifyPropertyChanged
     private string _scoreText = "";
     private string _userNameText = "";
 
-    public GameViewModel() {
+    public GameViewModel()
+    {
+        fetchScoreBoard();
+        
         _writeableBitmap = BitmapFactory.New(_width, _height);
         
         var dispatcherRenderTimer = new DispatcherTimer
@@ -65,10 +68,15 @@ public class GameViewModel : INotifyPropertyChanged
         }
     }
 
+    private List<Score> _scoreBoard;
+
     public List<Score> ScoreBoard {
         get {
-            using var db = new ScoreContext();
-            return db.Scores.ToList();
+            return _scoreBoard;
+        }
+        set {
+            _scoreBoard = value;
+            OnPropertyChanged("ScoreBoard");
         }
     }
 
@@ -82,6 +90,14 @@ public class GameViewModel : INotifyPropertyChanged
         }
     }
 
+    private void fetchScoreBoard()
+    {
+        using var db = new ScoreContext();
+        List<Score> scores = db.Scores.ToList();
+        scores.Sort((x, y) => y.Points.CompareTo(x.Points));
+        ScoreBoard = scores;
+    }
+
     private void Render(object? sender, EventArgs eventArgs)
     {
         _writeableBitmap.Lock();
@@ -154,6 +170,7 @@ public class GameViewModel : INotifyPropertyChanged
             Game.Playing = false;
             Game.PrintTetrominoe();
             Game.SaveGame();
+            fetchScoreBoard();
         }
     }
 }