#include "card_state.h"

#include "../zones/card_zone_logic.h"

#include <QSharedPointer>
#include <libcockatrice/card/card_info.h>
#include <libcockatrice/card/database/card_database_manager.h>
#include <libcockatrice/card/database/card_database_querier.h>

void CardState::resetState(bool keepAnnotations)
{
    attacking = false;
    counters.clear();
    pt.clear();
    if (!keepAnnotations) {
        annotation.clear();
    }
    attachedTo = nullptr;
    attachedCards.clear();
    setTapped(false, false);
    setDoesntUntap(false);
    emit stateReset();
}

void CardState::setColor(const QString &_color)
{
    color = _color;
    emit colorChanged();
}

void CardState::deleteView()
{
    emit viewDeleteRequested();
}

void CardState::setCardRef(const CardRef &_cardRef)
{
    if (cardRef == _cardRef) {
        return;
    }

    const CardRef oldCardRef = cardRef;
    if (exactCard) {
        disconnect(exactCard.getCardPtr().data(), nullptr, this, nullptr);
    }
    cardRef = _cardRef;

    emit cardRefChanged(oldCardRef, cardRef);
    refreshCardInfo();
}

void CardState::refreshCardInfo()
{
    exactCard = CardDatabaseManager::query()->getCard(cardRef);

    if (!exactCard && !cardRef.name.isEmpty()) {
        CardInfo::UiAttributes attributes = {.tableRow = -1};
        auto info = CardInfo::newInstance(cardRef.name, "", true, {}, {}, {}, {}, attributes);
        exactCard = ExactCard(info);
    }
    if (exactCard) {
        connect(exactCard.getCardPtr().data(), &CardInfo::pixmapUpdated, this, &CardState::cardPixmapUpdated);
    }

    emit cardInfoChanged();
}

void CardState::setTapped(bool _tapped, bool canAnimate)
{
    if (tapped == _tapped) {
        return;
    }

    tapped = _tapped;
    emit tappedChanged(tapped, canAnimate);
    emit stateChanged();
}

void CardState::setFaceDown(bool _facedown)
{
    facedown = _facedown;
    emit facedownChanged(facedown);
    emit stateChanged();
}

QVariantList CardState::parsePT(const QString &pt)
{
    QVariantList ptList = QVariantList();
    if (!pt.isEmpty()) {
        int sep = pt.indexOf('/');
        if (sep == 0) {
            ptList.append(QVariant(pt.mid(1))); // cut off starting '/' and take full string
        } else {
            int start = 0;
            for (;;) {
                QString item = pt.mid(start, sep - start);
                if (item.isEmpty()) {
                    ptList.append(QVariant(QString()));
                } else if (item[0] == '+') {
                    ptList.append(QVariant(item.mid(1).toInt())); // add as int
                } else if (item[0] == '-') {
                    ptList.append(QVariant(item.toInt())); // add as int
                } else {
                    ptList.append(QVariant(item)); // add as qstring
                }
                if (sep == -1) {
                    break;
                }
                start = sep + 1;
                sep = pt.indexOf('/', start);
            }
        }
    }
    return ptList;
}

void CardState::setZone(CardZoneLogic *_zone)
{
    if (zone == _zone) {
        return;
    }

    zone = _zone;
    emit zoneChanged(this, zone);
    emit stateChanged();
}

void CardState::setAttacking(bool _attacking)
{
    if (attacking == _attacking) {
        return;
    }
    attacking = _attacking;
    emit attackingChanged(_attacking);
    emit stateChanged();
}

void CardState::insertCounter(int id, int value)
{
    counters.insert(id, value);

    emit countersChanged(counters);
    emit stateChanged();
}

void CardState::setCounter(int id, int value)
{
    if (value) {
        counters[id] = value;
    } else {
        counters.remove(id);
    }

    emit countersChanged(counters);
    emit stateChanged();
}

void CardState::clearCounters()
{
    counters.clear();
    emit countersChanged(counters);
    emit stateChanged();
}

void CardState::setAnnotation(const QString &_annotation)
{
    if (annotation == _annotation) {
        return;
    }
    annotation = _annotation;
    emit annotationChanged(annotation);
    emit stateChanged();
}

void CardState::setPT(const QString &_pt)
{
    if (pt == _pt) {
        return;
    }
    pt = _pt;
    emit ptChanged(pt);
    emit stateChanged();
}

void CardState::setDoesntUntap(bool _doesntUntap)
{
    if (doesntUntap == _doesntUntap) {
        return;
    }
    doesntUntap = _doesntUntap;
    emit doesntUntapChanged(_doesntUntap);
    emit stateChanged();
}

void CardState::setDestroyOnZoneChange(bool _destroyOnZoneChange)
{
    if (destroyOnZoneChange == _destroyOnZoneChange) {
        return;
    }

    destroyOnZoneChange = _destroyOnZoneChange;
    emit destroyOnZoneChangeChanged(_destroyOnZoneChange);
    emit stateChanged();
}

void CardState::setAttachedTo(CardState *_attachedTo)
{
    if (attachedTo == _attachedTo) {
        return;
    }

    if (attachedTo != nullptr) {
        attachedTo->removeAttachedCard(this);
    }

    setGridPoint(QPoint(-1, getGridPoint().y()));
    attachedTo = _attachedTo;
    emit attachedToChanged(_attachedTo);
    emit stateChanged();

    if (attachedTo != nullptr) {
        // If the zone is being torn down, it might already be null by the time a card tries to un-attach all its
        // attached cards. The graphics item that owns this state handles the teardown in that case.
        CardZoneLogic *parentZone = attachedTo->getZone();
        if (parentZone == nullptr) {
            return;
        }
        emit parentZone->cardAdded(this);
        attachedTo->addAttachedCard(this);
        if (getZone() != parentZone) {
            parentZone->reorganizeCards();
        }
    } else if (getZone() != nullptr) {
        emit getZone() -> cardAdded(this);
    }

    if (getZone() != nullptr) {
        getZone()->reorganizeCards();
    }
}