gamemanager.h

/*
    This file is part of Cute Chess.
    Copyright (C) 2008-2018 Cute Chess authors

    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 GAMEMANAGER_H
#define GAMEMANAGER_H

#include <QObject>
#include <QList>
#include <QPointer>
class ChessGame;
class ChessPlayer;
class PlayerBuilder;
class GameThread;


class LIB_EXPORT GameManager : public QObject
{
    Q_OBJECT

    public:
        enum StartMode
        {
            StartImmediately,
            Enqueue
        };
        enum CleanupMode
        {
            DeletePlayers,
            ReusePlayers
        };

        GameManager(QObject* parent = nullptr);

        QList<ChessGame*> activeGames() const;

        int concurrency() const;
        void setConcurrency(int concurrency);

        void cleanupIdleThreads();

        void newGame(ChessGame* game,
                 const PlayerBuilder* white,
                 const PlayerBuilder* black,
                 StartMode startMode = StartImmediately,
                 CleanupMode cleanupMode = DeletePlayers);

    public slots:
        void finish();

    signals:
        void gameStarted(ChessGame* game);
        void gameDestroyed(ChessGame* game);
        void ready();
        void finished();
        void debugMessage(const QString& data);

    private slots:
        void onThreadReady();
        void onThreadQuit();
        void onGameInitialized(bool success);

    private:
        struct GameEntry
        {
            ChessGame* game;
            const PlayerBuilder* white;
            const PlayerBuilder* black;
            StartMode startMode;
            CleanupMode cleanupMode;
        };

        GameThread* getThread(const PlayerBuilder* white,
                      const PlayerBuilder* black);
        void startGame(const GameEntry& entry);
        void startQueuedGame();
        void cleanup();

        bool m_finishing;
        int m_concurrency;
        int m_activeQueuedGameCount;
        QList< QPointer<GameThread> > m_threads;
        QList<GameThread*> m_activeThreads;
        QList<GameEntry> m_gameEntries;
        QList<ChessGame*> m_activeGames;
};

#endif // GAMEMANAGER_H