swing: export game at the end

app/src/main/java/chess/SwingMain.java

@@ -3,9 +3,11 @@ package chess;
 import chess.ai.DumbAI;
 import chess.controller.CommandExecutor;
 import chess.controller.commands.NewGameCommand;
+import chess.controller.event.GameAdaptator;
 import chess.model.ChessBoard;
 import chess.model.Color;
 import chess.model.Game;
+import chess.pgn.PgnExport;
 import chess.view.simplerender.Window;
 
 public class SwingMain {
@@ -22,6 +24,13 @@ public class SwingMain {
         DumbAI ai2 = new DumbAI(commandExecutor, Color.White);
         commandExecutor.addListener(ai2);
 
+        commandExecutor.addListener(new GameAdaptator(){
+            @Override
+            public void onGameEnd() {
+                System.out.println(PgnExport.exportGame(game));
+            }
+        });
+
         commandExecutor.executeCommand(new NewGameCommand());
     }
 }