#include "mainwindow.h"

#include <DMainWindow>
#include <DWidgetUtil>
#include <DTitlebar>

#include <QLayout>
#include <QFileInfo>
#include <QCloseEvent>
#include <QDebug>

MainWindow::MainWindow(QString szTitle,
                       QString szUrl,
                       int nWidth,
                       int nHeight,
                       bool nFixSize,
                       bool nHideButtons,
                       DAboutDialog *dialog,
                       QWidget *parent)
    : DMainWindow(parent)
    , m_widget(new Widget(szUrl))
    , m_dialog(dialog)
    , btnBack(new DToolButton(titlebar()))
    , btnForward(new DToolButton(titlebar()))
    , btnRefresh(new DToolButton(titlebar()))
    , m_menu(new QMenu)
    , m_fixSize(new QAction(tr("Fix Size")))
    , m_hideButtons(new QAction(tr("Hide Buttons")))
    , m_width(nWidth)
    , m_height(nHeight)
{
    setCentralWidget(m_widget);
    centralWidget()->layout()->setContentsMargins(0, 0, 0, 0);

    resize(m_width, m_height);

    moveToCenter(this);

    setWindowIcon(QIcon(":/images/spark-webapp-runtime.svg"));

    titlebar()->setTitle(szTitle);
    titlebar()->setIcon(QIcon(":/images/spark-webapp-runtime.svg"));

    btnBack->setIcon(QIcon(":/images/go-previous-24.svg"));
    btnBack->setIconSize(QSize(36, 36));
    btnForward->setIcon(QIcon(":/images/go-next-24.svg"));
    btnForward->setIconSize(QSize(36, 36));
    btnRefresh->setIcon(QIcon(":/images/view-refresh.svg"));
    btnRefresh->setIconSize(QSize(36, 36));

    titlebar()->addWidget(btnBack, Qt::AlignLeft);
    titlebar()->addWidget(btnForward, Qt::AlignLeft);
    titlebar()->addWidget(btnRefresh, Qt::AlignLeft);

    m_fixSize->setCheckable(true);
    m_fixSize->setChecked(nFixSize);
    m_fixSize->setDisabled(nFixSize);   // 建议使用命令行参数 --fix-size 或者 --hide-buttons 时直接禁止在 GUI 修改选项，主要因为最大化按钮无法刷新存在状态，干脆都禁用了......
    m_hideButtons->setCheckable(true);
    m_hideButtons->setChecked(nHideButtons);
    m_hideButtons->setDisabled(nHideButtons);
    m_menu->addAction(m_fixSize);
    m_menu->addAction(m_hideButtons);
    titlebar()->setMenu(m_menu);

    fixSize();
    hideButtons();

    connect(btnBack, &DToolButton::clicked, this, [&]()
    {
        m_widget->goBack();
    });
    connect(btnForward, &DToolButton::clicked, this, [&]()
    {
        m_widget->goForward();
    });
    connect(btnRefresh, &DToolButton::clicked, this, [&]()
    {
        m_widget->refresh();
    });

    connect(m_fixSize, &QAction::triggered, this, [=]()
    {
        fixSize();
    });
    connect(m_hideButtons, &QAction::triggered, this, [=]()
    {
        hideButtons();
    });
}

MainWindow::~MainWindow()
{
    emit sigQuit();
    delete m_widget;
    delete m_dialog;
}

void MainWindow::setIcon(QString szIconPath)
{
    QFileInfo fi(szIconPath);
    if (fi.exists())
    {
        titlebar()->setIcon(QIcon(szIconPath));
        setWindowIcon(QIcon(szIconPath));
        qDebug() << szIconPath << "is Set!";
    }
    else
    {
        qDebug() << szIconPath << "is Not Exists!";
    }
}

void MainWindow::fixSize()
{
    if(m_fixSize->isChecked())
    {
        setFixedSize(this->width(), this->height());
    }
    else
    {
        setMinimumSize(m_width, m_height);
        setMaximumSize(QSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX));
    }
}

void MainWindow::hideButtons()
{
    if(m_hideButtons->isChecked())
    {
        btnBack->hide();
        btnForward->hide();
        btnRefresh->hide();
    }
    else
    {
        btnBack->show();
        btnForward->show();
        btnRefresh->show();
    }
}

void MainWindow::closeEvent(QCloseEvent *event)
{
    m_dialog->close();
    event->accept();
}