#include "CNodeItem.h"

#include "CRectItem.h"
#include "CTextItem.h"
#include "CLineItem.h"

#include <QAction>
#include <QTextDocument>

#include <QDebug>

CNodeItem::CNodeItem(const CNodeData data, CNodeItem *parent) : QObject(parent), m_data(data)
{
    m_rectItem = new CRectItem();
    m_textItem = new CTextItem(data.name, m_rectItem);
    m_lineItem = new CLineItem(m_rectItem);
    updateItemsGeometry();
    connectSignalsAndSlots();
}

CNodeData CNodeItem::data() const
{
    return m_data;
}

void CNodeItem::addSubNode(CNodeItem *n)
{
    if (n == nullptr) {
        return;
    }
    if (n->data().pNumber == data().number) {
        n->setParent(this);
    } else {
        for (QObject *obj : children()) {
            CNodeItem *item = dynamic_cast<CNodeItem *>(obj);
            item->addSubNode(n);
        }
    }
}

void CNodeItem::removeNode(int number)
{
    for (QObject *obj : children()) {
        CNodeItem *item = dynamic_cast<CNodeItem *>(obj);
        if (item->data().number == number) {
            item->setParent(nullptr);
            delete item;
        } else {
            item->removeNode(number);
        }
    }
}

CRectItem *CNodeItem::rectItem() const
{
    return m_rectItem;
}

CTextItem *CNodeItem::textItem() const
{
    return m_textItem;
}

QPointF CNodeItem::pos() const
{
    return m_pos;
}

void CNodeItem::setPos(const QPointF pos)
{
    m_pos = pos;
    updateItemsGeometry();
}

qreal CNodeItem::xMargin() const
{
    return m_xMargin;
}

void CNodeItem::setXMargin(qreal x)
{
    m_xMargin = x;
    updateItemsGeometry();
}

qreal CNodeItem::yMargin() const
{
    return m_yMargin;
}

void CNodeItem::setYMargin(qreal y)
{
    m_yMargin = y;
    updateItemsGeometry();
}

qreal CNodeItem::minWidth() const
{
    return m_minWidth;
}

void CNodeItem::setMinWidth(qreal w)
{
    m_minWidth = w;
    updateItemsGeometry();
}

qreal CNodeItem::minHeight() const
{
    return m_minHeight;
}

void CNodeItem::setMinHeight(qreal h)
{
    m_minHeight = h;
    updateItemsGeometry();
}

void CNodeItem::connectSignalsAndSlots()
{
    connect(m_rectItem->selectAction(), &QAction::triggered, this, &CNodeItem::slotSelect);
    connect(m_rectItem->subNodeAction(), &QAction::triggered, this, &CNodeItem::slotSubNode);
    connect(m_rectItem->removeAction(), &QAction::triggered, this, &CNodeItem::slotRemove);
}

void CNodeItem::updateItemsGeometry()
{
    QRectF tr = m_textItem->boundingRect();
    qreal w   = std::max(tr.width() + m_xMargin * 2, m_minWidth);
    qreal h   = std::max(tr.height() + m_yMargin * 2, m_minHeight);

    m_rectItem->setRect(QRectF(m_pos, QSizeF(w, h)));
    m_textItem->setPos(m_pos + QPointF(m_xMargin, (h - tr.height()) / 2));
}

void CNodeItem::slotSelect()
{
    qDebug() << __FUNCTION__ << __LINE__ << endl;
    m_rectItem->setHighlighted(!m_rectItem->highlighted());
}

void CNodeItem::slotSubNode()
{
    qDebug() << __FUNCTION__ << __LINE__ << endl;
    emit sigAddSubItem(data().number);
}

void CNodeItem::slotRemove()
{
    qDebug() << __FUNCTION__ << __LINE__ << endl;
    emit sigRemoveItem(data().number);
}