//
// Created by Krad on 2022/3/24.
//

#include "DateSlidePickerBox.h"
#include <QHBoxLayout>
#include <QLabel>
#include <QDate>
DateSlidePickerBox::DateSlidePickerBox(QWidget *parent) {
    layout = new QHBoxLayout(this);
    myear = new SlidePickerBox(this);
    QStringList centry;
    centry<<"19"<<"20";
    myear->setFixedWidth(56);
    myear->setItems(centry);
    layout->addWidget(myear);

    tyear = new SlidePickerBox(this);
    QStringList m_centry;
    m_centry << "0" << "1" << "2" << "3" << "4" << "5" << "6" << "7" << "8" << "9";
    tyear->setItems(m_centry);
    tyear->setFixedWidth(50);
    layout->addWidget(tyear);

    year = new SlidePickerBox(this);
    year->setItems(m_centry);
    year->setFixedWidth(50);
    layout->addWidget(year);

    QLabel* label = new QLabel(this);
    label->setText("/");
//    label->setFixedHeight(110);
    label->setAlignment(Qt::AlignCenter);

    label->setFixedWidth(50);
    label->setObjectName("sliderSpliterLabel");
    layout->addWidget(label);


    month = new SlidePickerBox(this);
    QStringList m_mouth;
    m_mouth << "01" << "02" << "03" << "04" << "05" << "06" << "07" << "08" << "09"<<"10"<<"11"<<"12";
    month->setItems(m_mouth);
    month->setFixedWidth(56);
    layout->addWidget(month);

    QLabel* label2 = new QLabel(this);
    label2->setText("/");
//    label2->setFixedHeight(110);
    label2->setAlignment(Qt::AlignCenter);
//    label2->setFixedHeight(80);
    label2->setFixedWidth(50);
    label2->setObjectName("sliderSpliterLabel");

    layout->addWidget(label2);

    day = new SlidePickerBox(this);
    QStringList days;
    days << "01" << "02" << "03" << "04" << "05" << "06" << "07" << "08" << "09";

    for (int i=10;i<=31;i++){
        days<<QString("%1").arg(i);
    }
    day->setFixedWidth(56);
    day->setItems(days);
    layout->addWidget(day);

    bigMonth << "01" << "03" << "05" << "07" << "08" << "10" << "12";
    connect(myear,&SlidePickerBox::valueChanged,this,&DateSlidePickerBox::leapYearAndFebruaryAdjust);
    connect(tyear,&SlidePickerBox::valueChanged,this,&DateSlidePickerBox::leapYearAndFebruaryAdjust);
    connect(year,&SlidePickerBox::valueChanged,this,&DateSlidePickerBox::leapYearAndFebruaryAdjust);
    connect(month,&SlidePickerBox::valueChanged,this,&DateSlidePickerBox::leapYearAndFebruaryAdjust);
}

void DateSlidePickerBox::resizeLabel() {

    myear->resizeLabelWidth();
    tyear->resizeLabelWidth();
    year->resizeLabelWidth();
    month->resizeLabelWidth();
    day->resizeLabelWidth();
}

QString DateSlidePickerBox::getSelectedValue() {
    return QString("%1%2%3-%4-%5").arg(myear->getSelectedValue()).
    arg(tyear->getSelectedValue()).arg(year->getSelectedValue())
    .arg(month->getSelectedValue()).arg(day->getSelectedValue());
}

void DateSlidePickerBox::setSelectedValue(const QString &val) {
    myear->setSelectedValue(val.left(2));
    tyear->setSelectedValue(val.left(3).right(1));
    year->setSelectedValue(val.left(4).right(1));
    QStringList sary = val.split('-');
    month->setSelectedValue(sary[1]);
    day->setSelectedValue(sary[2]);
}

int DateSlidePickerBox::getYear() {
    return QString("%1%2%3").arg(myear->getSelectedValue()).
            arg(tyear->getSelectedValue()).arg(year->getSelectedValue()).toInt();

}

void DateSlidePickerBox::leapYearAndFebruaryAdjust() {
    QString d = day->getSelectedValue();
    //闰年且二月
    if (QDate::isLeapYear(getYear()) && month->getSelectedValue() == "02") {
            //seq is important, must enable item firstly
            day->enableItem("29");
            if (d.toInt() > 29) {
                day->setSelectedValue("29");
            }

            day->disableItem("30");
            day->disableItem("31");
    }
    //普通年份2月或其他月份
    else{
        //普通年份2月
        if (month->getSelectedValue() == "02") {
            //seq is important, must set selected value firstly
            if (d.toInt() > 28) {
                day->setSelectedValue("28");
            }
            day->disableItem("29");
            day->disableItem("30");
            day->disableItem("31");
        }
        //其他月份
        else{

            day->enableItem("29");
            day->enableItem("30");
            if (isBigMonth()){
                day->enableItem("31");
            }
            else{
                //seq is important, must set selected value firstly
                if (d == "31") {
                    day->setSelectedValue("30");
                }
                day->disableItem("31");
            }
        }
    }
//    day->setSelectedValue(d);
}

bool DateSlidePickerBox::isBigMonth() {
    return bigMonth.contains(month->getSelectedValue());
}