#include "FrameTitleBar.h"

#include <QStyleOption>
#include <QPainter>
#include <QAction>
#include <QButtonGroup>
#include <QMouseEvent>

#include <qDebug>

#include "common/RecourceHelper.h"

#include "ui_FrameTitleBar.h"

FrameTitleBar::FrameTitleBar(QWidget* parent)
    : QFrame(parent)
    , ui(new Ui::FrameTitleBar) {
    ui->setupUi(this);

    setFocusPolicy(Qt::StrongFocus);
    connect(ui->sys_close, &QPushButton::clicked, this, &FrameTitleBar::OnCloseBtnClicked);
    connect(ui->sys_min, &QPushButton::clicked, this, &FrameTitleBar::OnMinBtnClicked);
    connect(ui->sys_max, &QPushButton::clicked, this, &FrameTitleBar::OnMaxBtnClicked);
    //connect(ui->sys_restore, &QPushButton::clicked, this, &FrameTitleBar::OnRestorClicked);
    //connect(this, &FrameTitleBar::doubleClick, this, &FrameTitleBar::OnDoubleClicked);

	/*ui->sys_close->setIcon(style()->standardPixmap(QStyle::SP_TitleBarCloseButton));
	ui->sys_min->setIcon(style()->standardPixmap(QStyle::SP_TitleBarMinButton));
	ui->sys_max->setIcon(style()->standardPixmap(QStyle::SP_TitleBarMaxButton));*/

    SetSysButton(0);

    setAttribute(Qt::WA_StyledBackground);
}

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

void FrameTitleBar::SetTitle(const QString& title) {
    ui->sys_title->setText(title);
    if (mainWidget_) {
        mainWidget_->setWindowTitle(title);
    }
}

void FrameTitleBar::SetMainWidget(QWidget* widget) {
    mainWidget_ = widget;
	if (nullptr == mainWidget_) {
		qDebug() << __FUNCTION__ << "mainWidget is nullptr";
		return;
	}
}
void FrameTitleBar::OnMaximized(bool maximized) {
    ui->sys_max->setVisible(!maximized);
}

QPushButton* FrameTitleBar::InsertPushButtonMenu(const QString& name, int index) {
    if (nullptr == menuLayout_) {
        qDebug() << __FUNCTION__ << "menu layout is nullptr";
        return nullptr;
    }
    QPushButton* btn = new QPushButton(this);
    btn->setText(name);
    btn->setCheckable(true);
    menuLayout_->insertWidget(index, btn);
    buttonCourp_->addButton(btn, index);
    return btn;
}

void FrameTitleBar::paintEvent(QPaintEvent* event) {
    QStyleOption opt;
    opt.initFrom(this);

    QPainter p(this);
    style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);
}

void FrameTitleBar::mouseReleaseEvent(QMouseEvent* event) {
    Q_UNUSED(event);
    pressed_ = false;
}

void FrameTitleBar::mousePressEvent(QMouseEvent* event) {
    if (nullptr == mainWidget_ || mainWidget_->isMaximized()) {
        return;
    }

    if (event->button() == Qt::LeftButton) {
        pressed_ = true;
        point_ = event->pos();
    }
}

void FrameTitleBar::mouseMoveEvent(QMouseEvent* event) {
    if (pressed_ && nullptr != mainWidget_) {
        mainWidget_->move(event->pos() - point_ + mainWidget_->pos());
    }
}

void FrameTitleBar::OnMinBtnClicked() {
    if (nullptr == mainWidget_) {
        qDebug() << __FUNCTION__ << "mainWidget is nullptr";
        return;
    }

    mainWidget_->showMinimized();
}

void FrameTitleBar::OnMaxBtnClicked() {
    if (nullptr == mainWidget_) {
        qDebug() << __FUNCTION__ << "mainWidget is nullptr";
        return;
    }

	if (mainWidget_->isMaximized()) {
		mainWidget_->showNormal();
        ui->sys_max->setIcon(QPixmap(":/res/sys_max.png"));
    } else {
        mainWidget_->showMaximized();
		ui->sys_max->setIcon(QPixmap(":/res/sys_restore.png"));
    }
}

void FrameTitleBar::OnCloseBtnClicked() {
    if (nullptr == mainWidget_) {
        qDebug() << __FUNCTION__ << "mainWidget is nullptr";
        return;
    }

    mainWidget_->close();
}

void FrameTitleBar::InitSkinMemu() {
    QStringList names;
    names << tr("default") << tr("silver") << tr("blue");
    QStringList values;
    values << "default" << "silver" << "blue";

    assert(values.count() == names.count());
    
    ui->sys_skin->setPopupMode(QToolButton::InstantPopup);
    for (int i = 0; i < names.count(); ++i) {
        QAction* action = new QAction(names[i], this);
        action->setData(values[i]);
        ui->sys_skin->addAction(action);
        connect(action, &QAction::triggered, &RecourceHelper::Get(), &RecourceHelper::OnChangeStyle);
    }
}

void FrameTitleBar::InitMenuWidget() {
    menuLayout_ = new QHBoxLayout(ui->menu_Widget);
    menuLayout_->setSpacing(6);
    menuLayout_->setContentsMargins(9, 0, 0, 0);

    buttonCourp_ = new QButtonGroup(this);
}

void FrameTitleBar::SetSysButton(unsigned int sysBtn) {
    ftbButton_ = sysBtn;
    ui->sys_icon->setVisible(static_cast<bool>(ftbButton_ & FTB_ICON));
    ui->sys_title->setVisible(static_cast<bool>(ftbButton_ & FTB_TTILE));
    ui->menu_Widget->setVisible(static_cast<bool>(ftbButton_ & FTB_MENU));
    ui->sys_skin->setVisible(static_cast<bool>(ftbButton_ & FTB_SKIN));
    ui->sys_min->setVisible(static_cast<bool>(ftbButton_ & FTB_MIN));
    ui->sys_max->setVisible(static_cast<bool>(ftbButton_ & FTB_MAX));
    ui->sys_close->setVisible(static_cast<bool>(ftbButton_ & FTB_CLOSE));
}