/*
    This file is part of the KDE games lskat program
    SPDX-FileCopyrightText: 2006 Martin Heni <kde@heni-online.de>

    SPDX-License-Identifier: LGPL-2.0-or-later
*/

#ifndef ABSTRACT_DISPLAY_H
#define ABSTRACT_DISPLAY_H

// Qt includes
#include <QGraphicsItem>
#include <QGraphicsScene>
#include <QGraphicsView>
#include <QHash>
#include <QList>

// KF includes
#include "lskat_debug.h"

// local includes

// Forward declaration
class Deck;
class CardSprite;
class ThemeManager;

/**
 * Abstract display engine.
 */
class AbstractDisplay : public QObject
{
    Q_OBJECT

public:
    /**
     * Constructor for the engine
     * @param deck The card deck
     * @param scene The graphics scene to work with
     * @param theme The theme manager
     * @param advancePeriod The advance period [ms]
     * @param parent The parent object
     */
    AbstractDisplay(Deck *deck, QGraphicsScene *scene, ThemeManager *theme, int advancePeriod, QGraphicsView *parent);

    /**
     * Destructor.
     */
    ~AbstractDisplay() override;

    /**
     * Set a new deck object.
     * @param deck The deck
     */
    void setDeck(Deck *deck);

    /**
     * Reset the display. Clear all sprites etc.
     */
    virtual void reset();

    /**
     * Start the display.
     */
    virtual void start() = 0;

    /**
     * Play a card on the display. The card is moved from its current position
     * to the card deposit.
     * @param cardNumber  The card number [0-7 ]
     * @param playerNumber  The player number [0-1]
     * @param phase Movement phase (1st part, 2nd part, etc) [optional]
     */
    virtual void play(int cardNumber, int playerNumber, int phase) = 0;

    /**
     * Turn a card on the display. The card is flipped backside
     * to frontside.
     * @param cardNumber The card number [0-7]
     */
    virtual void turn(int cardNumber) = 0;

    /**
     * Remove the given card from the display.
     * @param winnerPosition  The position of the winner (0,1)
     * @param cardNumber The number of the card
     * @param delta Card offset from target position (0,1,2,...)
     */
    virtual void remove(int winnerPosition, int cardNumber, int delta) = 0;

    /**
     * Retrieve the graphics scene of this display.
     * @return The QGraphicsScene of this display.
     */
    QGraphicsScene *scene() {return  mScene;}

public Q_SLOTS:
    /**
     * Convert the mouse position to a card number for one of the players.
     * @param mouse        The mouse coordinates [screen coordinates]
     * @param playerNumber The resulting player number [0-1]
     * @param cardNumber   The resulting card number [0-7]
     */
    virtual void convertMousePress(const QPoint &mouse, int &playerNumber, int &cardNumber) = 0;

    /**
     * Load all card sprites.
     */
    virtual void createCardSprites();

protected:
    /** The card deck */
    Deck *mDeck;
    /** The work canvas */
    QGraphicsScene *mScene;
    /** The graphics view */
    QGraphicsView *mView;
    /** Canvas advance period [ms]*/
    int mAdvancePeriod;
    /** Text sprite list */
    QList<QGraphicsItem *> mSprites;
    /** Store the card sprite indexed by the card value */
    static QHash<int, CardSprite *> mCards;
    /** Theme manager */
    ThemeManager *mTheme;
};

#endif
