#include "timewidget.h"
#include "ui_timewidget.h"
#include <QListWidgetItem>
#include <QMouseEvent>
#include <QDebug>
#include <QSizePolicy>
#include <QFile>
#include "timepartwidget.h"
#include "shadowwidget.h"
#include "UIStyleManager.h"

TimeWidget::TimeWidget(QWidget *parent , ShowType type) :
    QFrame(parent),
    ui(new Ui::TimeWidget),
    m_wdgTimeArea(nullptr),
    m_pMainWindow(parent),
    m_type(type)
{
    ui->setupUi(this);
    Init();
}


TimeWidget::TimeWidget(ShowType type) : 
    QFrame(nullptr),
    ui(new Ui::TimeWidget),
    m_wdgTimeArea(nullptr),
    m_pMainWindow(nullptr),
    m_type(type)
{
    ui->setupUi(this);
    Init();
}

TimeWidget::~TimeWidget()
{
    delete ui;
}

void TimeWidget::CreateTimeVector(const QVector<int> &types)
{
    ClearVector(m_vecTimePart);
    for (auto& type : types) {
        TimePartWidget::emSection emType = static_cast<TimePartWidget::emSection>(type);
        if (emType >= TimePartWidget::emSection::MAX_SECTION) {
            continue;
        }
        TimePartWidget* pTmp = new TimePartWidget(emType, this);
        if (nullptr != pTmp) {
            pTmp->SetMaxWidth(width() / types.count());
            m_vecTimePart.append(pTmp);
        }
    }
}

void TimeWidget::ClearVector(QVector<TimePartWidget *> &vec)
{
    for (auto& pWdg : vec) {
        if (nullptr != pWdg) {
            delete pWdg;
            pWdg = nullptr;
        }
    }
    vec.clear();
}

void TimeWidget::SetMainWindow(QWidget* pWidget)
{
    if (nullptr != m_pMainWindow) {
        this->removeEventFilter(m_pMainWindow);
    }
    if (nullptr != pWidget) {
        pWidget->installEventFilter(this);
    }
    m_pMainWindow = pWidget;
}

/* 返回时间 */
QTime TimeWidget::getTime()
{
    return ui->dateTimeEdit->time();
}


/**
 * @brief 存在时间就返回hh:mm:ss.zzz格式字符串，否则返回提示信息
 * @return
 */
QString TimeWidget::getTimeStr()
{
    QString ret(ui->lbl_tip->text());
    if (!ui->dateTimeEdit->isHidden()) {
        ret = ui->dateTimeEdit->time().toString("hh:mm:ss");//.zzz
    }
    return ret;
}
/**
 * @brief 存在返回时间，否则返回00:00:00
 * @return
 */
QTime TimeWidget::getFormTime() const
{
    return ui->dateTimeEdit->isHidden() ? QTime(0, 0, 0) : ui->dateTimeEdit->time();
}

void TimeWidget::setTime(const QString& t)
{
    QTime time = QTime::fromString(t, "hh:mm:ss");
    ui->dateTimeEdit->setTime(time);
    ui->lbl_tip->hide();
    ui->dateTimeEdit->show();
    UpdatePopupTime(ui->dateTimeEdit->dateTime());//
}

void TimeWidget::setTime(const QTime& t)
{
    ui->dateTimeEdit->setTime(t);
    ui->lbl_tip->hide();
    ui->dateTimeEdit->show();
    UpdatePopupTime(ui->dateTimeEdit->dateTime());
}

void TimeWidget::clearTime()
{
    ui->dateTimeEdit->setTime(QTime(0, 0, 0));
    ui->dateTimeEdit->hide();
    ui->lbl_tip->show();
}

QString TimeWidget::tipText() const
{
    return ui->lbl_tip->text();
}
/* 设置时间选择区域的大小，不能超过时间编辑栏的大小，这个主要是防止时间栏太宽，影响美观 */
void TimeWidget::setTimeAreaWidth(int w)
{
    if(w < 0)
    {
        m_width = 0;
    }
    else if(w > this->width())
    {
        m_width = this->width();
    }
    else
    {
        m_width = w;
    }
}

void TimeWidget::showTimeEditArea()
{
    this->show();
    ShowTimeArea(true);
}

/* 以弹窗的模式模态显示 */
void TimeWidget::execShow()
{
    QEventLoop loop;
    connect (this, &TimeWidget::signal_close, &loop, &QEventLoop::quit);
    this->show();
    ShowTimeArea(true);
    loop.exec();

    deleteLater();
}

/* 设置时间图标 */
void TimeWidget::setIcon(const QString& icon)
{
    /* 设置图片适应按钮大小 */
    QString ss = QString("border-image: url(%1)").arg(icon);
    ui->btn_tip->setStyleSheet(ss);
    ui->btn_tip->show();
}

/* 设置图标显示 */
void TimeWidget::setIconShow(bool isShow)
{
    if(isShow)
    {
        ui->btn_tip->show();
    }else {
        ui->btn_tip->hide();
    }
}

/* 设置图标大小 */
void TimeWidget::setIconSize(int w, int h)
{
    ui->btn_tip->setMinimumSize(w, h);
    /* 设置为固定大小 */
    ui->btn_tip->setFixedSize(w, h);
    // ui->btn_tip->resize(w, h);
}

/* 设置默认的样式 */
void TimeWidget::setDefaultStyle()
{
    /* 判断显示类型，如果是弹窗直接显示编辑区 */
    if(m_type == Dialog)
    {
        ui->btn_tip->hide();
        this->resize(136,36);
//        ShowTimeArea(false);
        /* 设置编辑栏样式 */
        // this->setStyleSheet(R"(
        //     TimeWidget
        //     {
        //         padding-left:15px;
        //         background: #FFFFFF;
        //         border-radius: 4px;
        //         border: 1px solid #E6E9F4;
        //     }
        // )");
    }
}

/* 设置编辑栏大小 */
void TimeWidget::setEditLine(int w, int h)
{
    this->resize(w, h);
}

/* 设置QSS */
void TimeWidget::setQSS()
{
    QString qssPath = EPUIStyle.getQSSPath() + "/SelectTime/timewidget.qss";

    QFile file(qssPath);
    if(file.open(QFile::ReadOnly))
    {
        QString styleSheet = QLatin1String(file.readAll());
        setStyleSheet(styleSheet);
        file.close();
    }
    // else 
    // {
    //     LH_WRITE_ERROR("open qss file failed: " + qssPath);
    // }
}

/**
 * @brief 点击提示信息
 */
void TimeWidget::onBtnTipClicked()
{
    bool isSelected = ui->btn_tip->property("selected").toBool();
    if (!isSelected) {
        // 显示日期
        ui->lbl_tip->hide();
        ui->dateTimeEdit->show();
        ShowTimeArea(true);
    } else {
        // 清除时间
        ui->dateTimeEdit->setTime(QTime(0, 0, 0));
        UpdateProperty(ui->btn_tip, "selected", false);
        QDateTime dt;
        dt.setTime(QTime(0, 0, 0));
        UpdatePopupTime(dt);
        ShowTimeArea(false);
        ui->dateTimeEdit->hide();
        ui->lbl_tip->show();
    }
}

/**
 * @brief 这里添加了两个信号，一个是修改过的新时间，一个是旧时间
 * @param obj
 * @param e
 * @return
 */
bool TimeWidget::eventFilter(QObject* obj, QEvent* e)
{
    if (obj == ui->dateTimeEdit) {
        if (e->type() == QEvent::FocusIn && m_type == EditLine)
        {
            //qInfo() << "dateTimeEdit focusIn";
            ShowTimeArea(true);
            UpdateProperty(ui->btn_tip, "selected", true);
            emit signal_formerTimer(ui->dateTimeEdit->time());
        }
        return QWidget::eventFilter(obj, e);
    } else if (obj == ui->lbl_tip) {
        if (e->type() == QEvent::MouseButtonPress && m_type == EditLine)
        {
            //qInfo() << "mouseButtonPress";
            ui->dateTimeEdit->show();
            ui->lbl_tip->hide();
            ShowTimeArea(true);
            //ui->dateTimeEdit->setFocus();//
            return QWidget::eventFilter(obj, e);
        }
    } else if (obj == this) {
        if (e->type() == QEvent::Enter) {
            UpdateProperty(this, "hover", true);
        } else if (e->type() == QEvent::Leave &&
                   ((m_wdgTimeArea.isNull() && !ui->dateTimeEdit->hasFocus()) ||
                    (m_wdgTimeArea && m_wdgTimeArea->isHidden())) ) {
            UpdateProperty(this, "hover", false);
        }
    }
    /* 判断是不是显示区外面，是的话就隐藏 */
    QMouseEvent* pMouse = reinterpret_cast<QMouseEvent*>(e);
    if (nullptr != pMouse) {
        if (pMouse->type() == QEvent::MouseButtonPress) {
            //qInfo() << "focusOut";
            QPoint gtl = this->mapToGlobal(rect().topLeft());
            QRect rc(gtl.x(), gtl.y(), width(), height()); // 全局位置判断
            if (!rc.contains(pMouse->globalPos())) {
                ShowTimeArea(false);
                ui->dateTimeEdit->clearFocus();
                UpdateProperty(this, "hover", false);
                /* 关闭显示，发送携带时间的信号 */
                emit signal_nowTime(ui->dateTimeEdit->time());
                if(m_type == Dialog)
                {
                    this->close();
                }
            }
        }
    }

    return QWidget::eventFilter(obj, e);
}
/**
 * @brief m_wdgTimeArea跟随时间栏移动
 * @param event
 */
void TimeWidget::moveEvent(QMoveEvent *event)
{
    if(m_type == Dialog && m_wdgTimeArea != nullptr)
    {
        QPoint pt = this->mapTo(m_pMainWindow, QPoint(0, 0));
        m_wdgTimeArea->move(QPoint(pt.x() - SHADOW_MARGIN, pt.y() + this->height()));
//        qDebug() << "posX:" << pt.x() << "posY:" << pt.y();
    }
}
/**
 * @brief 时间列表选中事件
 * @param item
 */
void TimeWidget::onListItemClicked(QListWidgetItem *item)
{
    if (nullptr == item) return;
    TimePartWidget* pWdg = reinterpret_cast<TimePartWidget*>(QObject::sender());
    if (nullptr == pWdg) return;

    QString data(item->text());
    if (data.isEmpty()) return; // 过滤空白项
    QDateTime oldDt(ui->dateTimeEdit->dateTime());
    QTime t(ui->dateTimeEdit->time());
    switch (pWdg->GetType()) {
    case TimePartWidget::HOUR: {
        t.setHMS(data.toInt(), t.minute(), t.second());
        break;
    }
    case TimePartWidget::MINUTE: {
        t.setHMS(t.hour(), data.toInt(), t.second());
        break;
    }
    case TimePartWidget::SECOND: {
        t.setHMS(t.hour(), t.minute(), data.toInt());
        break;
    }
    default:
        break;
    }
    if (oldDt.time() != t) {
        m_bTimeFlag = true;
        ui->dateTimeEdit->setTime(t);
    }
}
/**
 * @brief QDateTimeEdit控件时间改变事件
 * @param dt
 */
void TimeWidget::onDateTimeChanged(const QDateTime& dt)
{
    if (dt.time() != QTime(0, 0, 0)) {
        UpdateProperty(ui->btn_tip, "selected", true);
    }
    // 同步到popupWidget
    if (!m_bTimeFlag) {
        UpdatePopupTime(dt);
    }
    m_bTimeFlag = false;
}

void TimeWidget::UpdateProperty(QObject* obj, const char *name, bool flag)
{
    if (nullptr == obj || nullptr == name) {
        return;
    }
    obj->setProperty(name, flag);
    QWidget* pWdg = qobject_cast<QWidget*>(obj);
    if (nullptr != pWdg) {
        this->style()->unpolish(pWdg);
        this->style()->polish(pWdg);
    }
}
/**
 * @brief 更新popup列表选中时间
 * @param dt
 */
void TimeWidget::UpdatePopupTime(const QDateTime& dt)
{
    // 如果时间列表还没初始化就不会设置时间了
    for (int i = 0; i < m_vecTimeSections.size(); ++i) {
        auto type = m_vecTimeSections.at(i);
        TimePartWidget::emSection emType = static_cast<TimePartWidget::emSection>(type);
        if (emType >= TimePartWidget::emSection::MAX_SECTION) {
            continue;
        }
        if (i < m_vecTimePart.size()) {
            TimePartWidget* pWdg = m_vecTimePart.at(i);
            if (nullptr == pWdg) continue;
            pWdg->SetTime(dt);
        }
    }
}

/**
 * @brief wdgTimeArea区域是创建出来的，不属于ui区域，他的父类是m_pMainWindow，因此移动的时候需要使用m_pMainWindow的坐标
 * @param bShow
 */
void TimeWidget::ShowTimeArea(bool bShow)
{
    if (m_wdgTimeArea.isNull()) {
        CreatePopupWidget();
    }
    if (!m_wdgTimeArea.isNull()) {
        if (bShow) {
            //UpdatePopupTime(ui->dateTimeEdit->dateTime());
            // 重新定位再显示
            QPoint pt = this->mapTo(m_pMainWindow, QPoint(0, 0));
            m_wdgTimeArea->move(QPoint(pt.x() - SHADOW_MARGIN, pt.y() + this->height()));
            /* 设置选择条的大小，如果没有设置m_width，就是用时间编辑栏的宽度 */
            m_wdgTimeArea->resize((m_width == 0 ? width() : m_width) + 2 * SHADOW_MARGIN, TIME_AREA_HEIGHT * 6 + 2 * SHADOW_MARGIN);
            m_wdgTimeArea->setMaximumWidth(width() + 2 * SHADOW_MARGIN);
            m_wdgTimeArea->show();
            UpdatePopupTime(ui->dateTimeEdit->dateTime());
        } else {
            m_wdgTimeArea->hide();
            emit signal_close();
        }
    }
}

void TimeWidget::CreatePopupWidget()
{
    // CreateTimeArea
    m_vecTimeSections = {TimePartWidget::HOUR, TimePartWidget::MINUTE, TimePartWidget::SECOND};
    CreateTimeVector(m_vecTimeSections);
    m_wdgTimeArea.reset(new ShadowWidget(m_pMainWindow));
    if (!m_wdgTimeArea.isNull()) {
        if (m_wdgTimeArea->centralWidget() != nullptr) {
            m_wdgTimeArea->centralWidget()->setObjectName(QLatin1String("wdg_TimeArea"));
            m_wdgTimeArea->centralWidget()->setStyleSheet("QWidget#wdg_TimeArea{border-radius: 2px;border: none; }");
        }
        QHBoxLayout* hLayout = new QHBoxLayout();
        hLayout->setMargin(1);
        hLayout->setSpacing(0);
        m_wdgTimeArea->setCentralLayout(hLayout);
        if (nullptr == m_wdgTimeArea->getLayout()) {
            delete hLayout;
            hLayout = nullptr;
        }
        m_wdgTimeArea->resize(QSize(width() + 2 * SHADOW_MARGIN, TIME_AREA_HEIGHT * 6 + 2 * SHADOW_MARGIN));
        m_wdgTimeArea->setMaximumWidth(width() + 2 * SHADOW_MARGIN);
        m_wdgTimeArea->hide();

        if (nullptr != m_wdgTimeArea->getLayout()) {
            foreach (auto wdg, m_vecTimePart) {
                m_wdgTimeArea->getLayout()->addWidget(wdg);
                connect(wdg, &TimePartWidget::sigItemClicked, this, &TimeWidget::onListItemClicked);
            }
        }
    }
}

/* 初始化函数 */
void TimeWidget::Init()
{
    /* 设置QSS */
    setQSS();
    // InitUI
    ui->dateTimeEdit->hide();
    ui->dateTimeEdit->installEventFilter(this);
    this->installEventFilter(this);
    ui->lbl_tip->installEventFilter(this);
    if (nullptr != m_pMainWindow) {
        m_pMainWindow->installEventFilter(this);
    }
    ui->btn_tip->setProperty("selected", false);

    connect(ui->btn_tip, &QPushButton::clicked, this, &TimeWidget::onBtnTipClicked);
    connect(ui->dateTimeEdit, &QDateTimeEdit::dateTimeChanged, this, &TimeWidget::onDateTimeChanged);

    setDefaultStyle();
}