chessgame.h

/*
    This file is part of Cute Chess.

    Cute Chess 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, or
    (at your option) any later version.

    Cute Chess 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 Cute Chess.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef CHESSGAME_H
#define CHESSGAME_H

#include <QObject>
#include <QVector>
#include <QStringList>
#include <QMap>
#include <QSemaphore>
#include "pgngame.h"
#include "board/result.h"
#include "board/move.h"
#include "timecontrol.h"
#include "gameadjudicator.h"

namespace Chess { class Board; }
class ChessPlayer;
class OpeningBook;
class MoveEvaluation;


class LIB_EXPORT ChessGame : public QObject
{
    Q_OBJECT

    public:
        ChessGame(Chess::Board* board, PgnGame* pgn, QObject* parent = nullptr);
        virtual ~ChessGame();
        
        QString errorString() const;
        ChessPlayer* player(Chess::Side side) const;
        ChessPlayer* playerToMove() const;
        ChessPlayer* playerToWait() const;
        bool isFinished() const;
        bool boardShouldBeFlipped() const;
        void setBoardShouldBeFlipped(bool flip);

        PgnGame* pgn() const;
        Chess::Board* board() const;
        QString startingFen() const;
        const QVector<Chess::Move>& moves() const;
        const QMap<int,int>& scores() const;
        Chess::Result result() const;

        void setError(const QString& message);
        void setPlayer(Chess::Side side, ChessPlayer* player);
        void setStartingFen(const QString& fen);
        void setTimeControl(const TimeControl& timeControl,
                    Chess::Side side = Chess::Side());
        void setMoves(const QVector<Chess::Move>& moves);
        bool setMoves(const PgnGame& pgn);
        void setOpeningBook(const OpeningBook* book,
                    Chess::Side side = Chess::Side(),
                    int depth = 1000);
        void setAdjudicator(const GameAdjudicator& adjudicator);
        void setStartDelay(int time);
        void setBookOwnership(bool enabled);

        void generateOpening();

        void lockThread();
        void unlockThread();

    public slots:
        void start();
        void pause();
        void resume();
        void stop(bool emitMoveChanged = true);
        void kill();
        void emitStartFailed();
        void onMoveMade(const Chess::Move& move);
        void onAdjudication(const Chess::Result& result);
        void onResignation(const Chess::Result& result);

    signals:
        void humanEnabled(bool);
        void fenChanged(const QString& fenString);
        void moveMade(const Chess::GenericMove& move,
                  const QString& sanString,
                  const QString& comment);
        void moveChanged(int ply,
                 const Chess::GenericMove& move,
                 const QString& sanString,
                 const QString& comment);
        void scoreChanged(int ply, int score);
        void initialized(ChessGame* game = nullptr);
        void started(ChessGame* game = nullptr);
        void finished(ChessGame* game = nullptr,
                  Chess::Result result = Chess::Result());
        void startFailed(ChessGame* game = nullptr);
        void playersReady();

    private slots:
        void startGame();
        void startTurn();
        void finish();
        void onResultClaim(const Chess::Result& result);
        void onPlayerReady();
        void syncPlayers();
        void pauseThread();

    private:
        Chess::Move bookMove(Chess::Side side);
        bool resetBoard();
        void initializePgn();
        void addPgnMove(const Chess::Move& move, const QString& comment);
        void emitLastMove();
        
        Chess::Board* m_board;
        ChessPlayer* m_player[2];
        TimeControl m_timeControl[2];
        const OpeningBook* m_book[2];
        int m_bookDepth[2];
        int m_startDelay;
        bool m_finished;
        bool m_gameInProgress;
        bool m_paused;
        bool m_pgnInitialized;
        bool m_bookOwnership;
        bool m_boardShouldBeFlipped;
        QString m_error;
        QString m_startingFen;
        Chess::Result m_result;
        QVector<Chess::Move> m_moves;
        QMap<int,int> m_scores;
        PgnGame* m_pgn;
        QSemaphore m_pauseSem;
        QSemaphore m_resumeSem;
        GameAdjudicator m_adjudicator;
};

#endif // CHESSGAME_H