#include "VectorISATableView.hpp"
#include <QHeaderView>
#include <QPropertyAnimation>
#include <QSequentialAnimationGroup>

void VectorISATableView::paintEvent(QPaintEvent* e)
{
    QTableView* p = static_cast<QTableView*>(parent()->parent());
    int tableY = p->horizontalHeader()->height() + p->rowViewportPosition(4);
    int rHeight = rowHeight(0);
    for (int i = 0; i < 2; ++i)
    {
        int tableX;
        int width = 0;
        if (i == 0)
        {
            tableX = p->verticalHeader()->width() + columnViewportPosition(0);
            for (int j = 0; j <= m_maxISA; ++j)
                width += columnWidth(j);
        }
        else
        {
            tableX = p->verticalHeader()->width() + columnViewportPosition(m_maxISA + 1);
            for (int j = m_maxISA + 1; j < m_model.columnCount({}); ++j)
                width += columnWidth(j);
        }

        QWidget* w = std::get<0>(m_backgroundWidgets[i]);
        QSequentialAnimationGroup* animation = std::get<1>(m_backgroundWidgets[i]);
        QPropertyAnimation* pAnimation = static_cast<QPropertyAnimation*>(animation->animationAt(1));
        bool& running = std::get<2>(m_backgroundWidgets[i]);
        if (!running)
        {
            w->setGeometry(QRect(tableX, tableY, 0, rHeight));
            pAnimation->setStartValue(QRect(tableX, tableY, 0, rHeight));
            pAnimation->setEndValue(QRect(tableX, tableY, width, rHeight));
            animation->start();
            running = true;
        }
        if (animation->state() == QAbstractAnimation::State::Running)
            pAnimation->setEndValue(QRect(tableX, tableY, width, rHeight));
        else
            w->setGeometry(QRect(tableX, tableY, width, rHeight));
    }
    QTableView::paintEvent(e);
}

VectorISATableView::VectorISATableView(QWidget* parent)
: QTableView(parent)
{
    setModel(&m_model);

    for (int i = 0; i < m_model.columnCount({}); ++i)
    {
        if (m_model.data(m_model.index(0, i), Qt::UserRole).toBool())
            m_maxISA = i;
        else
            break;
    }

    horizontalHeader()->hide();
    horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
    setVerticalScrollBarPolicy(Qt::ScrollBarPolicy::ScrollBarAlwaysOff);
    setFrameShape(QFrame::Shape::NoFrame);
    verticalHeader()->hide();
    verticalHeader()->setSectionResizeMode(QHeaderView::Stretch);
    setSelectionMode(QAbstractItemView::SelectionMode::NoSelection);
    setFocusPolicy(Qt::NoFocus);

    for (int i = 0; i < 2; ++i)
    {
        QWidget* w = new QWidget(parent);
        std::get<0>(m_backgroundWidgets[i]) = w;

        QPalette pal = palette();
        if (i == 0)
            pal.setColor(QPalette::Background, QColor::fromRgbF(0.f, 1.f, 0.f, 0.2f));
        else
            pal.setColor(QPalette::Background, QColor::fromRgbF(1.f, 0.f, 0.f, 0.2f));

        w->setAutoFillBackground(true);
        w->setPalette(pal);
        w->lower();
        w->show();

        QPropertyAnimation* animation = new QPropertyAnimation(w, "geometry", this);
        animation->setDuration(2000);
        animation->setEasingCurve(QEasingCurve::Type::InOutCubic);

        QSequentialAnimationGroup* seq = new QSequentialAnimationGroup(this);
        std::get<1>(m_backgroundWidgets[i]) = seq;
        seq->addPause(4 * 100);
        seq->addAnimation(animation);
    }
}