#include "eletimer.h"
#include "tools.h"
#include "globaldefine.h"
#include <QPainter>
#include <QJsonObject>

EleTimer::EleTimer(const QJsonObject &json, QWidget *parent) : QWidget{parent} {
    isDown = json["isDown"].toBool();
    targetTime = QDateTime::fromString(json["targetTime"].toString(), "yyyy-MM-dd HH:mm:ss");
    hasDay = json["hasDay"].toBool();
    hasHour = json["hasHour"].toBool();
    hasMin = json["hasMin"].toBool();
    hasSec = json["hasSec"].toBool();
    text = json["text"].toString();
    isMultiline = json["isMultiline"].toBool();
    font = json["font"].toString();
    fontSize = json["fontSize"].toInt();
    fontBold = json["fontBold"].toBool();
    fontItalic = json["fontItalic"].toBool();
    fontUnderline = json["fontUnderline"].toBool();
    textColor = json["textColor"].toString();
    auto color = json["backColor"].toString();
    backColor = color.isEmpty() ? QColor(0,0,0,0) : color;
    connect(Tools::getInstance(), &Tools::sTick, this, [this]() {
        QDateTime cDateTime = QDateTime::currentDateTime();
        qint64 ofs = isDown ? cDateTime.secsTo(targetTime) : targetTime.secsTo(cDateTime);
        if(ofs < 0) ofs = 0;
        secs = ofs;
        update();
    });
}

void EleTimer::paintEvent(QPaintEvent *){
    QString text;
    if(! this->text.isEmpty()) {
        text += this->text;
        if(isMultiline) text += '\n';
        else text += " ";
    }
    int secs = this->secs;
    if(hasDay) {
        text.append(QString::number(secs/86400)).append(" ").append(tr("day")).append(" ");
        secs %= 86400;
    }
    if(hasHour) {
        text.append(QString::asprintf("%02d ", secs/3600)).append(tr("hour")).append(" ");
        secs %= 3600;
    }
    if(hasMin) {
        text.append(QString::asprintf("%02d ", secs/60)).append(tr("min")).append(" ");
        secs %= 60;
    }
    if(hasSec) text.append(QString::asprintf("%02d ", secs)).append(tr("sec")).append(" ");
    text = text.trimmed();
    QFont font(this->font, fontSize);
    font.setBold(fontBold);
    font.setItalic(fontItalic);
    font.setUnderline(fontUnderline);
    font.setStyleStrategy(gTextAntialiasing ? QFont::PreferAntialias : QFont::NoAntialias);
    QPainter painter(this);
    if(backColor.alpha() != 0) painter.fillRect(rect(), backColor);
    painter.setFont(font);
    painter.setPen(textColor);
    painter.drawText(rect(), text, QTextOption(Qt::AlignCenter));
}