/*
 * gamemodel.h - Gomoku Game plugin
 * Copyright (C) 2011  Aleksey Andreev
 *
 * 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 2
 * of the License, or (at your option) any later version.
 *
 * You can also redistribute and/or modify this program under the
 * terms of the Psi License, specified in the accompanied COPYING
 * file, as published by the Psi Project; either dated January 1st,
 * 2005, or (at your option) any later version.
 *
 * 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 library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 */

#ifndef GAMEMODEL_H
#define GAMEMODEL_H

#include <QObject>

#include "gameelement.h"

class GameModel : public QObject
{
Q_OBJECT
public:
    enum GameStatus {
        StatusNone,
        StatusWaitingLocalAction,
        StatusWaitingAccept,
        StatusWaitingOpponent,
        StatusWin,
        StatusLose,
        StatusDraw,
        StatusBreak, // Игра прервана. Например закрытие доски оппонента
        StatusError
    };
    struct TurnInfo {
        int  x;
        int  y;
        bool my;
    };
    GameModel(GameElement::ElementType my, int row_count, int col_count, QObject *parent = 0);
    GameModel(const QString &load_str, const bool local, QObject *parent = 0);
    ~GameModel();
    bool isValid() const {return valid_;}
    GameStatus gameStatus() const;
    int  boardSizeX() const {return boardSizeX_;};
    int  boardSizeY() const {return boardSizeY_;};
    int  turnsCount() const {return turnsCount_;};
    GameElement::ElementType myElementType() const {return my_el;};
    const GameElement *getElement(int x, int y) const;
    bool doTurn(int x, int y, bool local);
    bool doSwitchColor(bool local);
    bool accept();
    void setErrorStatus();
    QString getLastError() const {return lastErrorStr;};
    void breakGame();
    void setWin();
    void setDraw();
    void setLose();
    QString toString() const;
    int  lastX() const;
    int  lastY() const;
    bool isLoaded() const;
    QString gameInfo() const;
    TurnInfo turnInfo(int num) const;

private:
    enum ChksumStatus {
        ChksumNone,
        ChksumCorrect,
        ChksumIncorrect
    };
    bool valid_;
    GameStatus status_;
    bool accepted_;
    int  turnsCount_;
    int  blackCount_;
    int  whiteCount_;
    GameElement::ElementType my_el;
    bool switchColor;
    int  boardSizeX_;
    int  boardSizeY_;
    int loadedTurnsCount;
    ChksumStatus chksum;
    QString lastErrorStr;
    QList<GameElement *> elementsList;

private:
    bool selectGameStatus();
    int  getElementIndex(int x, int y) const;
    bool checkForLose();
    bool checkForDraw();
    QString statusString() const;

signals:
    void statusUpdated(GameModel::GameStatus);

public slots:

};

#endif // GAMEMODEL_H
