/*

 * 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.webidor;

import cz.xelfi.quoridor.Board;

import cz.xelfi.quoridor.IllegalPositionException;

import cz.xelfi.quoridor.Move;

import cz.xelfi.quoridor.Player;

import java.util.ArrayList;

import java.util.Date;

import java.util.List;

import javax.xml.bind.annotation.XmlAccessType;

import javax.xml.bind.annotation.XmlAccessorType;

import javax.xml.bind.annotation.XmlAttribute;

import javax.xml.bind.annotation.XmlElement;

import javax.xml.bind.annotation.XmlRootElement;

import javax.xml.bind.annotation.adapters.XmlAdapter;

import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;

/**

 *

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

 */

@XmlRootElement

@XmlAccessorType(XmlAccessType.FIELD)

public final class Game extends Object {

    @XmlElement

    private GameId id;

    @XmlElement

    @XmlJavaTypeAdapter(BoardAdapter.class)

    private Board board;

    @XmlElement

    @XmlJavaTypeAdapter(MoveAdapter.class)

    private List<Move> moves;

    private Integer move;

    Game() {

    }

    public Game(String first, String second) {

        this.id = new GameId(first, second);

        this.board = Board.empty();

    }

    public Game(GameId id) {

        this.id = id;

        this.board = Board.empty();

    }

    public GameId getId() {

        return id;

    }

    public Board getBoard() {

        return board;

    }

    @XmlAttribute

    final String getCurrentPlayer() {

        if (board.getCurrentPlayer() == board.getPlayers().get(0)) {

            return id.getWhite();

        } else {

            return id.getBlack();

        }

    }

    public void apply(String player, Move m, Date when) throws IllegalPositionException {

        Player p = null;

        if (id.getWhite().equals(player)) {

            p = getBoard().getPlayers().get(0);

        } else {

            if (id.getBlack().equals(player)) {

                p = getBoard().getPlayers().get(1);

            }

        }

        if (p != getBoard().getCurrentPlayer()) {

            throw new IllegalArgumentException("Wrong player: " + player);

        }

        board = getBoard().apply(m);

        if (when == null) {

            when = new Date(id.getModified());

        }

        id = new GameId(id.getId(), id.getWhite(), id.getBlack(), new Date(id.getStarted()), when, GameStatus.valueOf(board));

        getMoves().add(m);

    }

    public List<Move> getMoves() {

        if (moves == null) {

            moves = new ArrayList<Move>();

        }

        return moves;

    }

    @XmlAttribute

    public int getCurrentMove() {

        return move == null ? getMoves().size() : move;

    }

    public Game snapshot(int move) throws IllegalPositionException {

        Board b = Board.empty();

        int cnt = 0;

        for (Move m : getMoves()) {

            if (move-- <= 0) {

                break;

            }

            b = b.apply(m);

            cnt++;

        }

        Game g = new Game(

            new GameId(

                id.getId(), id.getWhite(), id.getBlack(),

                new Date(id.getStarted()), new Date(id.getModified()),

                GameStatus.history

            )

        );

        g.board = b;

        g.move = cnt;

        g.moves = new ArrayList<Move>(getMoves());

        return g;

    }

    @XmlAccessorType(XmlAccessType.FIELD)

    private static final class MoveTmp {

        @XmlAttribute

        String move;

        @XmlAttribute

        int index;

        private MoveTmp() {

        }

        public MoveTmp(String move, int index) {

            this.move = move;

            this.index = index;

        }

    }

    private static final class MoveAdapter extends XmlAdapter<MoveTmp[],List<Move>> {

        @Override

        public List<Move> unmarshal(MoveTmp[] arr) throws Exception {

            List<Move> res = new ArrayList<Move>();

            if (arr != null) {

                for (MoveTmp v : arr) {

                    res.add(Move.valueOf(v.move));

                }

            }

            return res;

        }

        @Override

        public MoveTmp[] marshal(List<Move> arr) throws Exception {

            List<MoveTmp> res = new ArrayList<MoveTmp>();

            if (arr != null) {

                int index = 0;

                for (Move m : arr) {

                    res.add(new MoveTmp(m.toString(), ++index));

                }

            }

            return res.toArray(new MoveTmp[0]);

        }

    } // end of MoveAdapter

    private static final class BoardAdapter extends XmlAdapter<String,Board> {

        @Override

        public Board unmarshal(String v) throws Exception {

            return v == null ? null : Board.valueOf(v);

        }

        @Override

        public String marshal(Board v) throws Exception {

            return v == null ? null : v.toString();

        }

    }

}