#include "lts_profile_button.h"

#include <QBrush>
#include <QEvent>
#include <QPaintEvent>
#include <QPainter>
#include <QPainterPath>
#include <QPen>
#include <QRect>

using namespace LtsWidgets;

LtsProfileButton::LtsProfileButton(QWidget* parent) : QWidget(parent), m_isHovered(false), m_menuEnabled(true)
{
    QSizePolicy qsp = QSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
    qsp.setHeightForWidth(true);
    setSizePolicy(qsp);
}

void LtsProfileButton::setPixmap(const QPixmap& pixmap)
{
    if (pixmap.isNull())
        m_pixmap = QPixmap(QStringLiteral("icon:no_pic.svg"));
    else
        m_pixmap = pixmap;

    update();
}

void LtsProfileButton::enterEvent(QEvent* event)
{

    m_isHovered = true;
    update();
    QWidget::enterEvent(static_cast<QEnterEvent*>(event));
}

void LtsProfileButton::leaveEvent(QEvent* event)
{

    m_isHovered = false;
    update();
    QWidget::leaveEvent(event);
}

bool LtsProfileButton::event(QEvent* event)
{
    if (event->type() == QEvent::MouseButtonPress && m_menuEnabled)
    {
        emit signalClicked();
        event->accept();

        update();
        return true;
    }

    return QWidget::event(event);
}

void LtsProfileButton::paintEvent(QPaintEvent* event)
{
    QPainter p(this);
    p.save();

    int minSize;
    QPointF center;
    minSize = height() > width() ? width() : height();
    center = QPointF(width() / 2.0, height() / 2.0);

    p.setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform);

    QPixmap pixmap(minSize, minSize);
    pixmap.fill(Qt::white);

    if (!m_pixmap.isNull())
    {
        if (!(m_isHovered && m_menuEnabled))
        {
            pixmap = m_pixmap.scaled(minSize, minSize, Qt::KeepAspectRatioByExpanding);
        }
    }

    QPainterPath path;
    path.addEllipse(center, minSize / 2.0 - 4, minSize / 2.0 - 4);
    p.setClipPath(path);
    p.drawPixmap(center - QPointF(minSize / 2.0, minSize / 2.0), pixmap);

    p.setPen(QPen(QColor("gray"), 2));
    p.drawEllipse(center, minSize / 2.0 - 4, minSize / 2.0 - 4);

    if (m_isHovered && m_menuEnabled)
    {
        p.setPen(QPen(QColor(QStringLiteral("gray")), (minSize / 48 * 2)));

        double xc = size().width() / 2.012;
        double yc = size().height() / 2.012;
        double diff = minSize / 2.012;

        p.drawLine(QPointF(xc - (diff / 2.01f), yc - (diff / 3.01f)),
                   QPointF(xc + (diff / 2.02f), yc - (diff / 3.02f)));
        p.drawLine(QPointF(xc - (diff / 2.01f), yc - 0.01f), QPointF(xc + (diff / 2.02f), yc - 0));
        p.drawLine(QPointF(xc - (diff / 2.01f), yc + (diff / 3.01f)),
                   QPointF(xc + (diff / 2.02f), yc + (diff / 3.02f)));
    }

    event->accept();
    p.restore();
}