#include "ElaGraphicsScenePrivate.h"

#include "ElaGraphicsItem.h"
#include "ElaGraphicsLineItem.h"
#include "ElaGraphicsScene.h"
ElaGraphicsScenePrivate::ElaGraphicsScenePrivate(QObject *parent) : QObject(parent) {}

ElaGraphicsScenePrivate::~ElaGraphicsScenePrivate() {}

QDataStream &operator<<(QDataStream &stream, const ElaGraphicsScenePrivate *data) {
    QStringList              keyList  = data->_items.keys();
    QList<ElaGraphicsItem *> itemList = data->_items.values();
    stream << keyList;
    for (int i = 0; i < keyList.count(); i++) {
        stream << itemList[i];
    }
    stream << data->_itemsLink;
    return stream;
}

QDataStream &operator>>(QDataStream &stream, ElaGraphicsScenePrivate *data) {
    QStringList keyList;
    stream >> keyList;
    QList<ElaGraphicsItem *> itemList = data->_serializeItem(keyList.count());
    for (int i = 0; i < keyList.count(); i++) {
        stream >> itemList[i];
    }
    for (int i = 0; i < keyList.count(); i++) {
        data->_items.insert(keyList[i], itemList[i]);
    }
    stream >> data->_itemsLink;
    data->_deserializeLink();
    return stream;
}

QList<ElaGraphicsItem *> ElaGraphicsScenePrivate::_serializeItem(int count) {
    Q_Q(ElaGraphicsScene);
    QList<ElaGraphicsItem *> itemList;
    for (int i = 0; i < count; i++) {
        ElaGraphicsItem *item = new ElaGraphicsItem();
        item->setParent(q);
        itemList.append(item);
        q->QGraphicsScene::addItem(item);
        _currentZ++;
    }
    return itemList;
}

void ElaGraphicsScenePrivate::_removeLinkLineItem() {
    Q_Q(ElaGraphicsScene);
    if (_linkLineItem) {
        q->QGraphicsScene::removeItem(_linkLineItem);
        delete _linkLineItem;
        _linkLineItem = nullptr;
    }
}

void ElaGraphicsScenePrivate::_deserializeLink() {
    Q_Q(ElaGraphicsScene);
    for (int i = 0; i < _itemsLink.count(); i++) {
        QVariantMap          itemLinkData = _itemsLink[i];
        QList<QString>       uidList      = itemLinkData.keys();
        QList<QVariant>      portList     = itemLinkData.values();
        ElaGraphicsLineItem *lineItem =
            new ElaGraphicsLineItem(_items.value(uidList[0]), _items.value(uidList[1]), portList[0].toInt(), portList[1].toInt());
        q->QGraphicsScene::addItem(lineItem);
        _lineItemsList.append(lineItem);
    }
}