/*

 * Quoridor server and related libraries

 * Copyright (C) 2009-2010 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program. Look for COPYING file in the top folder.

 * If not, see http://www.gnu.org/licenses/.

 */

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.XmlElementWrapper;

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;

    @XmlElementWrapper(name="moves")

    @XmlElement(name="item")

    private List<CommentedMove> 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() {

        Player w = board.getWinner();

        if(w==null){

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

                return id.getWhite();

            } else {

                return id.getBlack();

            }

        }else{

            if (w == 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());

        }

        final GameStatus status = GameStatus.valueOf(board);

        id = new GameId(

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

            new Date(id.getStarted()), when, status,

            id.getComments(), !status.isInProgress());

        getMoves().add(new CommentedMove(m, getMoves().size() + 1));

    }

    public void comment(String player, String comment, Date date) {

        Note n = new Note(comment, date, player);

        id = new GameId(

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

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

            GameStatus.valueOf(board), id.getComments() + 1, id.isFinished()

        );

        getMoves().get(getMoves().size() - 1).addNote(n);

    }

    public List<CommentedMove> getMoves() {

        if (moves == null) {

            moves = new ArrayList<CommentedMove>();

        }

        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 (CommentedMove m : getMoves()) {

            if (move-- <= 0) {

                break;

            }

            b = b.apply(m.getMove());

            cnt++;

        }

        Game g = new Game(

            new GameId(

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

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

                GameStatus.history, id.getComments(), id.isFinished()

            )

        );

        g.board = b;

        g.move = cnt;

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

        return g;

    }

/*

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

        @Override

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

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

            if (arr != null) {

                for (CommentedMove v : arr) {

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

                }

            }

            return res;

        }

        @Override

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

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

            if (arr != null) {

                int index = 0;

                for (Move m : arr) {

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

                }

            }

            return res.toArray(new CommentedMove[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);

//            return v == null ? null : new Board(v);

        }

        @Override

        public String marshal(Board v) throws Exception {

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

//            return v == null ? null : Board.board2HashCode(v);

        }

    }

}