/**
 * @file abstract_card_item.h
 * @ingroup GameGraphicsCards
 * @brief Base class for graphical card items, providing shared rendering, identity, and interaction logic.
 */

#ifndef ABSTRACTCARDITEM_H
#define ABSTRACTCARDITEM_H

#include "../animated_item.h"
#include "arrow_target.h"
#include "graphics_item_type.h"

#include <QColor>
#include <QGraphicsItem>
#include <QSizeF>
#include <QString>
#include <QtGlobal>
#include <libcockatrice/game/board/card_state.h>
#include <qtmetamacros.h>

class PlayerLogic;
class CardInfo;
class QPainter;
class QPoint;
class QPropertyAnimation;

class AbstractCardItem : public ArrowTarget, public IAnimatedItem
{
    Q_OBJECT
    Q_PROPERTY(qreal cardScale READ getCardScale WRITE setCardScale)
    Q_PROPERTY(qreal cardOpacity READ getCardOpacity WRITE setCardOpacity)
protected:
    CardState *state;
    int tapAngle;
    QColor bgColor;

private:
    bool isHovered;
    bool isHoverHighlighted;
    qreal realZValue;
    bool pendingSelectionCollapse;
    int selectionCollapseGeneration = 0; ///< Guards the deferred collapse timer against stale firings
    QPropertyAnimation *hoverZoom = nullptr;
    QPropertyAnimation *opacityAnim = nullptr;
private slots:
    void pixmapUpdated();
    void onCardInfoChanged();
    void onCardRefChanged(const CardRef &oldCardRef, const CardRef &newCardRef);
    void onTappedChanged(bool newTapped, bool canAnimate);

public slots:
    void refreshCardInfo();

signals:
    void hovered(AbstractCardItem *card);
    void showCardInfoPopup(const QPoint &pos, const CardRef &cardRef);
    void deleteCardInfoPopup(QString cardName);
    void sigPixmapUpdated();
    void cardShiftClicked(QString cardName);
    void rightClicked(AbstractCardItem *card, QPoint screenPos);
    void playSelected(AbstractCardItem *card);
    void playSelectedFaceDown(AbstractCardItem *card);
    void hideSelected(AbstractCardItem *card);
    void selectionChanged(AbstractCardItem *card, bool selected);
    void tappedChanged(bool tapped);
    void faceDownChanged(bool faceDown);
    /** @brief Emitted when the hover shrink-out animation runs to completion while unhovered. */
    void hoverShrinkFinished(AbstractCardItem *card);
    /**
     * @brief Emitted when the hover zoom changes this card's scene footprint.
     *
     * Zones (and anything else that dodges the zoomed card) draw from the live footprint at
     * paint time but are cached: they need this to invalidate, or a stale hole is left behind.
     * Also emitted once when the hover ends, with both rects equal, because the hole
     * disappears without the card changing size.
     */
    void hoverFootprintChanged(const QRectF &oldFootprint, const QRectF &newFootprint);

public:
    enum
    {
        Type = typeCard
    };
    int type() const override
    {
        return Type;
    }
    explicit AbstractCardItem(QGraphicsItem *parent = nullptr,
                              const CardRef &cardRef = {},
                              PlayerLogic *_owner = nullptr,
                              int _id = -1);
    ~AbstractCardItem() override;
    QRectF boundingRect() const override;
    QPainterPath shape() const override;
    QSizeF getTranslatedSize(QPainter *painter) const;
    void paintPicture(QPainter *painter, const QSizeF &translatedSize, int angle);
    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
    [[nodiscard]] CardState *getState() const
    {
        return state;
    }
    ExactCard getCard() const
    {
        return state->getCard();
    }
    const CardInfo &getCardInfo() const;
    int getId() const
    {
        return state->getId();
    }
    void setId(int _id)
    {
        state->setId(_id);
    }
    QString getName() const
    {
        return state->getCardRef().name;
    }
    QString getProviderId() const
    {
        return state->getCardRef().providerId;
    }
    void setCardRef(const CardRef &_cardRef)
    {
        state->setCardRef(_cardRef);
    }
    CardRef getCardRef() const
    {
        return state->getCardRef();
    }
    qreal getRealZValue() const
    {
        return realZValue;
    }
    void setRealZValue(qreal _zValue);
    void setHovered(bool _hovered);
    /**
     * @brief Shows the hover outline and stacking lift, plus the historical 1.1x hover
     * scale whenever no zoom trigger is configured.
     *
     * The board zoom is trigger-gated; the hover feedback (card info, outline, raised
     * stacking) still follows the cursor immediately on contact. With the zoom trigger
     * off and the panel not on hover, the old 1.1x enlargement (gated by scaleCards)
     * stays in effect so upgrading does not silently drop it.
     */
    void setHoverHighlighted(bool highlighted);
    qreal getCardScale() const;
    void setCardScale(qreal scale);
    qreal getCardOpacity() const;
    void setCardOpacity(qreal opacity);
    /** @brief Fades the card out under the hover panel, or back in when it closes. */
    void fadeCardOut();
    void fadeCardIn();
    bool getIsHovered() const
    {
        return isHovered;
    }
    [[nodiscard]] QString getColor() const
    {
        return state->getColor();
    }
    void setColor(const QString &_color);
    bool getTapped() const
    {
        return state->getTapped();
    }
    void setTapped(bool _tapped, bool canAnimate = false)
    {
        state->setTapped(_tapped, canAnimate);
    }
    bool getFaceDown() const
    {
        return state->getFaceDown();
    }
    void setFaceDown(bool _facedown)
    {
        state->setFaceDown(_facedown);
    }
    void processHoverEvent();
    /** @brief Drop a pending collapse and disarm any deferred collapse timer. */
    void cancelPendingSelectionCollapse();
    void deleteCardInfoPopup()
    {
        emit deleteCardInfoPopup(state->getCardRef().name);
    }

    /** @brief Default: no per-tick animation. Subclasses override to animate. */
    bool animationEvent() override;

protected:
    void transformPainter(QPainter *painter, const QSizeF &translatedSize, int angle);
    void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
    void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
    QVariant itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant &value) override;
    void cacheBgColor();
    /**
     * @brief Whether a double-click on this item acts on the whole selection.
     *
     * When true, a release without drag defers the multi-selection collapse
     * until the double-click window passes, so a following double-click still
     * sees every selected card. Subclasses that handle double-clicks on the
     * selection must return true here and call
     * cancelPendingSelectionCollapse() from their double-click handler.
     */
    virtual bool doubleClickActsOnSelection() const;
};

#endif