package com.gmail.bernabe.laurent.j2se.chesspresso_test;

import java.util.ArrayList;

import javax.swing.JFrame;
import javax.swing.JOptionPane;

import chesspresso.Chess;
import chesspresso.game.Game;
import chesspresso.game.view.GameBrowser;
import chesspresso.move.IllegalMoveException;
import chesspresso.move.Move;
import chesspresso.position.Position;

public class ChessFrame extends JFrame {

	public ChessFrame(){
		PROMOTION_LISTENER = new MyPromotionListener();
		setTitle("Chesspresso gamebrowser test");
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		
		add(gameBrowser);
		pack();
		
		try {
			addMove(Chess.E2, Chess.E4, null, PROMOTION_LISTENER);
			addMove(Chess.D7, Chess.D5, null, PROMOTION_LISTENER);
			addMove(Chess.E4, Chess.D5, null, PROMOTION_LISTENER);
			addMove(Chess.E7, Chess.E6, null, PROMOTION_LISTENER);
			addMove(Chess.D5, Chess.E6, null, PROMOTION_LISTENER);
			addMove(Chess.H7, Chess.H6, null, PROMOTION_LISTENER);
			addMove(Chess.E6, Chess.F7, null, PROMOTION_LISTENER);
			addMove(Chess.E8, Chess.E7, null, PROMOTION_LISTENER);
			addMove(Chess.F7, Chess.G8, null, PROMOTION_LISTENER);
		} catch (IllegalMoveException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
	public interface PromotionListener {

		int getPromotionPiece();
		
	}
	
	private void addMove(int fromSquareIndex, int toSquareIndex, String comment,
			ChessFrame.PromotionListener promotionListener)
			throws IllegalMoveException {
		matchedMoves.clear();
		Position position = chessGame.getPosition();
		short [] legalMoves = position.getAllMoves();
		
		for (int moveIndex = 0; moveIndex < legalMoves.length; moveIndex++){
			short testedMove = legalMoves[moveIndex];
			if (Move.getFromSqi(testedMove) == fromSquareIndex
					&& Move.getToSqi(testedMove) == toSquareIndex){
				// move is legal
				matchedMoves.add(testedMove);
			}
		}
		
		if (matchedMoves.size() == 0)
			throw new IllegalMoveException("");
		
		short move = Move.ILLEGAL_MOVE;
		if (Move.isPromotion(matchedMoves.get(0))){
			int promotionPiece = promotionListener.getPromotionPiece();
			for (Short testedMove : matchedMoves){
				if (Move.getPromotionPiece(testedMove) == promotionPiece) {
					move = testedMove;
					break;
				}
			}
		}
		else
			move = matchedMoves.get(0);
		
		chessGame.getPosition().doMove(move);
		chessGame.addComment(comment);
	}
	
	private class MyPromotionListener implements PromotionListener {

		@Override
		public int getPromotionPiece() {
			int selectionID = JOptionPane.showOptionDialog(ChessFrame.this,
					"Choose your promotion piece", "Promotion piece selection",
					JOptionPane.OK_OPTION, JOptionPane.QUESTION_MESSAGE, null,
					new String[]{"Queen", "Rook", "Bishop", "Knight"}, 0);
			int promotionPiece;
			switch(selectionID){
			case 1:
				promotionPiece =Chess.ROOK;
				break;
			case 2:
				promotionPiece =Chess.BISHOP;
				break;
			case 3:
				promotionPiece =Chess.KNIGHT;
				break;
			default:
			case 0:
				promotionPiece = Chess.QUEEN;
			}
			return promotionPiece;
		}
		
	}
	
	private ArrayList<Short> matchedMoves = new ArrayList<Short>(10);
	private Game chessGame = new Game();
	private GameBrowser gameBrowser = new GameBrowser(chessGame);
	private final MyPromotionListener PROMOTION_LISTENER;
	private static final long serialVersionUID = -6856238414376776882L;

}