/**
 * Copyright (C) 2004-2011 Jive Software. All rights reserved.
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jivesoftware.spark.plugin.battleship.gui;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridLayout;
import java.awt.Image;
import java.awt.geom.AffineTransform;

import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JPanel;

import org.jivesoftware.spark.plugin.battleship.listener.ShipPlacementListener;
import org.jivesoftware.spark.plugin.battleship.types.Types;

public class GameboardGUI extends JPanel {
    private static final long serialVersionUID = -6429298293488133059L;

    private final Image _bg;
    private final JLabel[][] _labels;

    public GameboardGUI() {
        ClassLoader cl = getClass().getClassLoader();
        _bg = new ImageIcon(cl.getResource("water.png")).getImage();

        setLayout(new GridLayout(10, 10));
        _labels = new JLabel[10][10];

        for (int x = 0; x < 10; x++) {
            for (int y = 0; y < 10; y++) {
                _labels[x][y] = new JLabel("empty");
                _labels[x][y].setBorder(BorderFactory.createLineBorder(Color.lightGray));
                add(_labels[x][y]);
            }
        }
        this.setPreferredSize(new Dimension(400, 400));
    }

    public void setField(int x, int y, Types t) {
        System.out.println("setting field" + x + "," + y);
        _labels[x][y].setIcon(t.getImage());
        repaint();
        revalidate();
    }

    @Override
    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        final Image backgroundImage = _bg;
        double scaleX = getWidth() / (double) backgroundImage.getWidth(null);
        double scaleY = getHeight() / (double) backgroundImage.getHeight(null);
        AffineTransform xform = AffineTransform.getScaleInstance(scaleX, scaleY);
        ((Graphics2D) g).drawImage(backgroundImage, xform, this);
    }

    public void initiateShipPlacement(ShipPlacementListener spl) {
        for (int x = 0; x < 10; x++) {
            for (int y = 0; y < 10; y++) {
                _labels[x][y].addMouseListener(spl);
            }
        }
    }

    public JLabel[][] getLabels() {
        return _labels;
    }

}
