#include <QPropertyAnimation>
#include <QParallelAnimationGroup>
#include <QPainter>
#include <QHBoxLayout>
#include <QTimer>
#include "waitwidget.h"
CircularProgress::CircularProgress(QWidget* parent)
    : QProgressBar(parent)
{
    init();
}

CircularProgress::~CircularProgress()
{
}

void CircularProgress::setProgressType(ProgressType type)
{
    m_progressType = type;
    update();
}

CircularProgress::ProgressType CircularProgress::progressType() const
{
    return m_progressType;
}

void CircularProgress::setUseThemeColors(bool value)
{
    if (m_useThemeColors == value) {
        return;
    }

    m_useThemeColors = value;
    update();
}

bool CircularProgress::useThemeColors() const
{
    return m_useThemeColors;
}

void CircularProgress::setLineWidth(qreal width)
{
    m_penWidth = width;
    update();
    updateGeometry();
}

qreal CircularProgress::lineWidth() const
{
    return m_penWidth;
}

void CircularProgress::setSize(int size)
{
    m_size = size;
    update();
    updateGeometry();
}

int CircularProgress::size() const
{
    return m_size;
}

void CircularProgress::setColor(const QColor& color)
{
    m_color = color;
    update();
}

QColor CircularProgress::color() const
{
    if (m_useThemeColors || !m_color.isValid()) {
        return QColor(37, 177, 218);
    }
    else {
        return m_color;
    }
}

QSize CircularProgress::sizeHint() const
{
    const qreal s = m_size + m_penWidth + 8;
    return QSize(s, s);
}

void CircularProgress::paintEvent(QPaintEvent* event)
{
    Q_UNUSED(event)

        QPainter painter(this);
    painter.setRenderHint(QPainter::Antialiasing);

    if (!isEnabled()) {
        QPen pen;
        pen.setCapStyle(Qt::RoundCap);
        pen.setWidthF(m_penWidth);
        pen.setColor(QColor(186, 186, 186));
        painter.setPen(pen);
        painter.drawLine(rect().center() - QPointF(20, 20), rect().center() + QPointF(20, 20));
        painter.drawLine(rect().center() + QPointF(20, -20), rect().center() - QPointF(20, -20));
        return;
    }

    if (IndeterminateProgress == m_progressType) {
        painter.translate(width() / 2, height() / 2);
        painter.rotate(m_delegate->angle());
    }

    QPen pen;
    pen.setCapStyle(Qt::RoundCap);
    pen.setWidthF(m_penWidth);

    // 绘制底部环
    pen.setColor(QColor(165, 165, 165));
    painter.setPen(pen);
    painter.drawEllipse(QPoint(0, 0), m_size / 2, m_size / 2);

    pen.setColor(color());

    if (IndeterminateProgress == m_progressType) {
        QVector<qreal> pattern;
        pattern << m_delegate->dashLength() * m_size / 50 << 30 * m_size / 50;

        pen.setDashOffset(m_delegate->dashOffset() * m_size / 50);
        pen.setDashPattern(pattern);

        painter.setPen(pen);

        painter.drawEllipse(QPoint(0, 0), m_size / 2, m_size / 2);
    }
    else
    {
        painter.setPen(pen);

        const qreal x = (width() - m_size) / 2;
        const qreal y = (height() - m_size) / 2;

        const qreal a = 360 * (value() - minimum()) / (maximum() - minimum());

        QPainterPath path;
        path.arcMoveTo(x, y, m_size, m_size, 0);
        path.arcTo(x, y, m_size, m_size, 0, a);

        painter.drawPath(path);
    }
}

void CircularProgress::init()
{
    m_delegate = new CircularProgressDelegate(this);
    m_progressType = IndeterminateProgress;
    m_penWidth = 6.25;
    m_size = 64;
    m_useThemeColors = true;

    setSizePolicy(QSizePolicy(QSizePolicy::MinimumExpanding,
        QSizePolicy::MinimumExpanding));

    QParallelAnimationGroup* group = new QParallelAnimationGroup(this);
    group->setLoopCount(-1);

    QPropertyAnimation* animation;
    animation = new QPropertyAnimation(this);
    animation->setPropertyName("dashLength");
    animation->setTargetObject(m_delegate);
    animation->setEasingCurve(QEasingCurve::InOutQuad);
    animation->setStartValue(0.1);
    animation->setKeyValueAt(0.15, 0.2);
    animation->setKeyValueAt(0.6, 20);
    animation->setKeyValueAt(0.7, 20);
    animation->setEndValue(20);
    animation->setDuration(2050);

    group->addAnimation(animation);

    animation = new QPropertyAnimation(this);
    animation->setPropertyName("dashOffset");
    animation->setTargetObject(m_delegate);
    animation->setEasingCurve(QEasingCurve::InOutSine);
    animation->setStartValue(0);
    animation->setKeyValueAt(0.15, 0);
    animation->setKeyValueAt(0.6, -7);
    animation->setKeyValueAt(0.7, -7);
    animation->setEndValue(-25);
    animation->setDuration(2050);

    group->addAnimation(animation);

    animation = new QPropertyAnimation(this);
    animation->setPropertyName("angle");
    animation->setTargetObject(m_delegate);
    animation->setStartValue(0);
    animation->setEndValue(719);
    animation->setDuration(2050);

    group->addAnimation(animation);

    group->start();
}


CircularProgressDelegate::CircularProgressDelegate(CircularProgress* parent)
    : QObject(parent),
    m_progress(parent),
    m_dashOffset(0),
    m_dashLength(89),
    m_angle(0)
{
    Q_ASSERT(parent);
}

CircularProgressDelegate::~CircularProgressDelegate()
{
}

void CircularProgressDelegate::setDashOffset(qreal offset)
{
    m_dashOffset = offset;
    m_progress->update();
}

qreal CircularProgressDelegate::dashOffset() const
{
    return m_dashOffset;
}

void CircularProgressDelegate::setDashLength(qreal length)
{
    m_dashLength = length;
    m_progress->update();
}

qreal CircularProgressDelegate::dashLength() const
{
    return m_dashLength;
}

void CircularProgressDelegate::setAngle(int angle)
{
    m_angle = angle;
    m_progress->update();
}

int CircularProgressDelegate::angle() const
{
    return m_angle;
}



WaitProgressWidget::WaitProgressWidget(QWidget* parent)
    : QWidget(parent)
    , m_parentWidget(parent)
{
    m_progress = new CircularProgress(this);

    this->setAutoFillBackground(true);
    this->hide();

    QColor color(165, 165, 165);
    color.setAlphaF(0.6);
    this->setBgColor(color);

    auto waitBgLayout = new QHBoxLayout(this);
    waitBgLayout->addWidget(m_progress);
    waitBgLayout->setAlignment(m_progress, Qt::AlignCenter);

    parent->installEventFilter(this);

    m_timer = new QTimer(this);
    connect(m_timer, &QTimer::timeout, this, [this]() {
        if (!this->isHidden()) {
            stop(false);
        }
        });
    connect(this, &WaitProgressWidget::sig_finished, [this](bool isok) {
        if (isok) {
            if (!this->isHidden()) {
                stop(false);
            }
        }
        else {
            if (this->isHidden()) {
                start();
            }
        }

        });
}

WaitProgressWidget::~WaitProgressWidget()
{
    stop(true);

    if (m_timer) {

        delete m_timer;
        m_timer = NULL;
    }
}

void WaitProgressWidget::setBgColor(QColor color)
{
    QPalette palette;
    palette.setColor(QPalette::Background, color);
    this->setPalette(palette);
    update();
}

bool WaitProgressWidget::eventFilter(QObject* obj, QEvent* ev)
{
    if (obj == m_parentWidget && ev->type() == QEvent::Resize) {
        if (!this->isHidden()) {
            this->setFixedSize(m_parentWidget->size());
            this->raise();
        }
    }
    return QWidget::eventFilter(obj, ev);
}

void WaitProgressWidget::showEvent(QShowEvent* ev)
{
    Q_UNUSED(ev);// 屏蔽鼠标事件

    this->setFixedSize(m_parentWidget->size());
    this->raise();
}

void WaitProgressWidget::start(int msecs)
{
    m_timer->start(msecs);
    this->show();
}

void WaitProgressWidget::stop(bool isOk)
{
    m_timer->stop();
    this->hide();
    emit sig_finished(isOk);
}

void WaitProgressWidget::show()
{
    QWidget::show();
}

void WaitProgressWidget::hide()
{
    QWidget::hide();
}