#include "PicDateItem.h"
#include <QDebug>
#include <QRegExp>
#include "LogInfo.h"
#include "ItemCommon.h"

PicDateItem::PicDateItem(QGraphicsItem *parent, QGraphicsScene *scene, const SourceType type)
    :PicTextItem(parent, scene, type)
{
    m_timer.setInterval(20);
    connect(&m_timer, &QTimer::timeout, [this](){
        updateDatetimeStr();
    });
    
    m_timer.start();
}

QVariant PicDateItem::source()
{
    return m_model.datetimePattern;
}

void PicDateItem::setSource(QVariant var)
{
    m_model.datetimePattern = var.toString();
    if(m_model.datetimePattern.isEmpty())
        return;

    m_currDateTimeStr = generateTxtFromDateItemModel(m_model, QDateTime::currentDateTime());
    applyModify();
}

void PicDateItem::setModel(DateItemModel model)
{
    m_model = std::move(model);
    setSource(m_model.datetimePattern);
}

const DateItemModel& PicDateItem::model() const
{
    return m_model;
}

bool PicDateItem::updateDatetimeStr()
{
    if (m_model.datetimePattern.isEmpty())
        return false;

    if(m_currDateTimeStr.isEmpty()) {
        m_currDateTimeStr = generateTxtFromDateItemModel(m_model, QDateTime::currentDateTime());
        applyModify();
        return true;
    }
    
    auto now = QDateTime::currentDateTime();
    auto str = generateTxtFromDateItemModel(m_model, now);
    if(str == m_currDateTimeStr) {
        return false;
    }

    m_currDateTimeStr = str;
    applyModify();
    return true;
}

void PicDateItem::setCustomAttrs(const QXmlStreamAttributes &attrs)
{
    // 结构类似这样
    // weeksMap = "MON<br>TUR<br>WED<br>TUE<br>THU<br>FRI<br>SAT<br>SUN"
    // yearsMap = "2023<subbr>2023年<br>2024<subbr>2024年<br>2025<subbr>2025年"

    auto m = DateItemModel();
    m.dataMap = attrs.value("dataMap").toString().split("<br>");
    m.daysMap = attrs.value("daysMap").toString().split("<br>");
    m.hoursMap = attrs.value("hoursMap").toString().split("<br>");
    m.monthsMap = attrs.value("monthsMap").toString().split("<br>");
    m.weeksMap = attrs.value("weeksMap").toString().split("<br>");

    auto yearsMap = attrs.value("yearsMap").toString().split("<br>");
    for(auto it = yearsMap.begin(); it != yearsMap.end(); ++it) {
        auto yearPair = it->split("<subbr>");
        if(yearPair.size() == 2) {
            m.yearsMap[yearPair[0].toInt()] = yearPair[1];
        }
    }

    m.monthsOffset = attrs.value("monthsOffset").toInt();
    m.daysOffset = attrs.value("daysOffset").toInt();
    m.datetimePattern = attrs.value("datetimePattern").toString();
    setModel(std::move(m));
}

void PicDateItem::saveCustomAttrs(QXmlStreamAttributes &attrs)
{
    auto dataMap = m_model.dataMap.join("<br>");
    auto daysMap = m_model.daysMap.join("<br>");
    auto hoursMap = m_model.hoursMap.join("<br>");
    auto monthsMap = m_model.monthsMap.join("<br>");
    auto weeksMap = m_model.weeksMap.join("<br>");
    
    QString yearsMap;
    for(auto it = m_model.yearsMap.begin(); it != m_model.yearsMap.end(); ++it) {
        yearsMap.append(QString("%1<subbr>%2<br>").arg(it.key()).arg(it.value()));
    }

    attrs.append("dataMap", dataMap);
    attrs.append("daysMap", daysMap);
    attrs.append("hoursMap", hoursMap);
    attrs.append("monthsMap", monthsMap);
    attrs.append("weeksMap", weeksMap);
    attrs.append("yearsMap", yearsMap);
    attrs.append("datetimePattern", m_model.datetimePattern);
    attrs.append("monthsOffset", QString::number(m_model.monthsOffset));
    attrs.append("daysOffset", QString::number(m_model.daysOffset));
}

QImage PicDateItem::itemImage()
{
    if(m_model.datetimePattern.isEmpty())
        return QImage();

    auto ret = strToImage(m_currDateTimeStr);
    return ret;
}