Valentins pgn methods for saving and loading pgn files in ChessEngine

schach/src/main/java/de/hs_mannheim/informatik/chess/model/ChessEngine.java

@@ -1,4 +1,5 @@
 package de.hs_mannheim.informatik.chess.model;
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.logging.ConsoleHandler;
@@ -10,7 +11,9 @@ import java.util.logging.SimpleFormatter;
 import com.github.bhlangonijr.chesslib.Board;
 import com.github.bhlangonijr.chesslib.Piece;
 import com.github.bhlangonijr.chesslib.Square;
+import com.github.bhlangonijr.chesslib.game.Game;
 import com.github.bhlangonijr.chesslib.move.Move;
+import com.github.bhlangonijr.chesslib.pgn.PgnHolder;
 
 public class ChessEngine {
 	private Board board;
@@ -223,4 +226,69 @@ public class ChessEngine {
         logger.info("ChessEngine wurde initialisiert.");
     }
     
+    public List<Game> loadGamesFromPgn(String path) throws IOException {
+
+        PgnHolder pgnHolder = new PgnHolder(path);
+        try {
+			pgnHolder.loadPgn();
+		} catch (Exception e) {
+			e.printStackTrace();
+		} 
+        List<Game> games = pgnHolder.getGames();
+        return games;
+    }
+    
+    public void saveAsPgn(Game game, String path, String dateiname) {
+        String event = game.getRound().getEvent().getName();
+        String site = game.getRound().getEvent().getSite();
+        String round = "" + game.getRound().getNumber();
+        String date = game.getRound().getEvent().getStartDate();
+        String wName = game.getWhitePlayer().getName();
+        String bName = game.getBlackPlayer().getName();
+        String result = game.getResult().getDescription();
+
+        StringBuilder header = new StringBuilder();
+        header.append("[Event \"" + event + "\"]\n");
+        header.append("[Site \"" + site + "\"]\n");
+        header.append("[Date \"" + date + "\"]\n");
+        header.append("[Round \"" + round + "\"]\n");
+        header.append("[White \"" + wName + "\"]\n");
+        header.append("[Black \"" + bName + "\"]\n");
+        header.append("[Result \"" + result + "\"]\n");
+        header.append("\n");
+
+        StringBuilder sb = new StringBuilder();
+        String[] sanArray = game.getHalfMoves().toSanArray();
+
+        for (int i = 0; i < sanArray.length; i++) {
+            if (i % 2 == 0) {
+                sb.append((i / 2 + 1)).append(". ");
+            }
+            sb.append(sanArray[i]).append(" ");
+        }
+
+        sb.append(result); // Endergebnis muss auch am Ende stehen!
+
+        String file = header.toString() + sb.toString();
+
+//        try {
+//            Files.writeString(Path.of(path, dateiname), file, StandardCharsets.UTF_8);
+//        } catch (IOException e) {
+//            e.printStackTrace();
+//        }
+    }
+    
+    public void loadMoves(List<Move> moveList) {
+        board = new Board();  // Neues leeres Brett
+        moves.clear();
+        currentMoveIndex = 0;
+
+        for (Move move : moveList) {
+            board.doMove(move);
+            moves.add(move);
+            currentMoveIndex++;
+        }
+
+    }
+    
 }