#include "selfdrive/ui/qt/ready.h"

#include <cmath>
#include <algorithm>

#include <QPainter> 
#include <QStackedLayout>

#include <QApplication>
#include <QGridLayout>
#include <QString>
#include <QTransform>
#include <QPixmap>

#include "common/params.h"
#include "common/timing.h"

#include "system/hardware/hw.h" 
#include "selfdrive/ui/qt/qt_window.h"
#include "selfdrive/ui/qt/util.h"


ReadyWindow::ReadyWindow(QWidget *parent) : QWidget(parent) {
    QGridLayout *layout = new QGridLayout(this);
    layout->setSpacing(0);
    layout->setMargin(0);

    setAttribute(Qt::WA_OpaquePaintEvent);
    setStyleSheet("ReadyWindow { background-color: black; }");

    timer = new QTimer(this);
    timer->callOnTimeout(this, &ReadyWindow::refresh);
}

void ReadyWindow::showEvent(QShowEvent *event) {
  refresh();
  timer->start(5 * 1000);
}

void ReadyWindow::hideEvent(QHideEvent *event) {
  timer->stop();
}

void ReadyWindow::paintEvent(QPaintEvent *event) {
    QPainter painter(this);
    QPixmap *img_shown = nullptr;

    if (is_hot) {
        if (img_hot.isNull()) {
            img_hot.load("/data/openpilot/selfdrive/clearpilot/theme/clearpilot/images/hot.png");
        }
        img_shown = &img_hot;
    } else {
        if (img_ready.isNull()) {
            img_ready.load("/data/openpilot/selfdrive/clearpilot/theme/clearpilot/images/ready.png");
        }
        img_shown = &img_ready;
    }

    int x = (width() - img_shown->width()) / 2;
    int y = (height() - img_shown->height()) / 2;
    painter.drawPixmap(x, y, *img_shown);
}

void ReadyWindow::refresh() {
    std::string bytes = params.get("Offroad_TemperatureTooHigh");
    if (!bytes.empty()) {
        auto doc = QJsonDocument::fromJson(bytes.data());
        is_hot = true;
        cur_temp = doc["extra"].toString();
        update();
    } else if (is_hot) {
        is_hot = false;
        update();
    }
}