/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

 *

 * The contents of this file are subject to the terms of either the GNU

 * General Public License Version 2 only ("GPL") or the Common

 * Development and Distribution License("CDDL") (collectively, the

 * "License"). You may not use this file except in compliance with the

 * License. You can obtain a copy of the License at

 * http://www.netbeans.org/cddl-gplv2.html

 * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the

 * specific language governing permissions and limitations under the

 * License.  When distributing the software, include this License Header

 * Notice in each file and include the License file at

 * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Sun in the GPL Version 2 section of the License file that

 * accompanied this code. If applicable, add the following below the

 * License Header, with the fields enclosed by brackets [] replaced by

 * your own identifying information:

 * "Portions Copyrighted [year] [name of copyright owner]"

 *

 * Contributor(s):

 *

 * Portions Copyrighted 2009 Jaroslav Tulach

 */

package cz.xelfi.quoridor.visidor;

import cz.xelfi.quoridor.Board;

import cz.xelfi.quoridor.Fence;

import cz.xelfi.quoridor.Fence.Orientation;

import cz.xelfi.quoridor.IllegalPositionException;

import cz.xelfi.quoridor.Move;

import cz.xelfi.quoridor.Player;

import java.awt.Color;

import java.awt.Font;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.Rectangle;

import javax.swing.JFrame;

import javax.swing.JPanel;

/**

 *

 * @author Jaroslav Tulach <jtulach@netbeans.org>

 */

final class Viewer extends JPanel {

    private Board board;

    public Viewer() {

        this(Board.empty());

    }

    private Viewer(Board b) {

        this.board = b;

    }

    /**

     * @param args the command line arguments

     */

    public static void main(String[] args) throws IllegalPositionException {

        Board b = Board.empty();

        for (int i = 1; i <= 8; i++) {

            b = b.apply(Move.fence('A', i, Orientation.values()[i % 2]));

        }

        for (int i = 1; i <= 8; i++) {

            b = b.apply(Move.fence('H', i, Orientation.values()[(i + 1) % 2]));

        }

        JFrame f = new JFrame();

        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        f.add(new Viewer(b));

        f.pack();

        f.setVisible(true);

    }

    @Override

    protected void paintComponent(Graphics gg) {

        int fieldSize = Math.min(getSize().width, getSize().height) / 9;

        int fifth = fieldSize / 10;

        Graphics2D g = (Graphics2D) gg;

        int xdelta = getSize().width - fieldSize * 9;

        int ydelta = getSize().height - fieldSize * 9;

        g.translate(xdelta / 2, ydelta / 2);

        g.setColor(Color.lightGray);

        for (int i = 0; i < 9; i++) {

            for (int j = 0; j < 9; j++) {

                final Rectangle r = new Rectangle(i * fieldSize, j * fieldSize, fieldSize, fieldSize);

                g.fillRect(r.x + fifth, r.y + fifth, r.width - fifth * 2, r.height - fifth * 2);

            }

        }

        g.setColor(Color.BLACK);

        for (Fence f : board.getFences()) {

            int w, h;

            switch (f.getOrientation()) {

                case HORIZONTAL: w = fieldSize - fifth; h = fifth; break;

                case VERTICAL: w = fifth; h = fieldSize - fifth; break;

                default: throw new IllegalStateException();

            }

            int column = (f.getColumn() - 'A') + 1;

            int row = 9 - f.getRow();

            Rectangle r = new Rectangle(

                column * fieldSize - w,

                row * fieldSize - h,

                2 * w,

                2 * h

            );

            g.fill(r);

        }

        int cnt = 0;

        Color[] colors = { Color.WHITE, Color.BLACK, Color.ORANGE, Color.MAGENTA };

        int diametr = fieldSize - fifth * 4;

        for (Player p : board.getPlayers()) {

            int column = p.getColumn();

            int row = 8 - p.getRow();

            final Rectangle r = new Rectangle(

                column * fieldSize + 2 * fifth,

                row * fieldSize + 2 * fifth,

                diametr,

                diametr

            );

            g.setColor(colors[cnt]);

            g.fillOval(r.x, r.y, r.width, r.height);

            if (p == board.getCurrentPlayer()) {

                g.setColor(Color.lightGray);

                g.fillOval(r.x + r.width / 3, r.y + r.height / 3, r.width / 3, r.height / 3);

            }

            cnt++;

        }

        g.setColor(Color.BLACK);

        final Font f = new Font("Monospace", Font.BOLD, fifth * 2);

        g.setFont(f);

        for (int i = 0; i < 8; i++) {

            final char ch = (char) ('A' + i);

            g.drawString(Character.toString(ch), i * fieldSize + fieldSize - fifth, fifth + f.getSize() - f.getBaselineFor(ch));

        }

        for (int i = 0; i < 8; i++) {

            String s = "" + (8 - i);

            g.drawString(s, fifth, i * fieldSize + fieldSize - fifth + f.getSize() - f.getBaselineFor(s.charAt(0)));

        }

    }

}