/*
 * This file is part of smolbote. It's copyrighted by the contributors recorded
 * in the version control history of the file, available from its original
 * location: https://neueland.iserlohn-fortress.net/smolbote.hg
 *
 * SPDX-License-Identifier: GPL-3.0
 */

#include "webview.h"
#include "mainwindow/subwindow.h"
#include "webpage.h"
#include "webprofile.h"
#include "widgets/pagetoolsmenu.h"
#include <QDialog>
#include <QStatusBar>
#include <QVBoxLayout>
#include <QContextMenuEvent>
#include <QWidgetAction>
#include <QSlider>

WebView::WebView(WebProfile *profile, QWidget *parent)
    : QWebEngineView(parent)
{
    Q_CHECK_PTR(profile);
    m_profile = profile;
    setPage(new WebPage(profile, this));

    m_parentWindow = qobject_cast<SubWindow *>(parent);

    // load status and progress
    connect(this, &QWebEngineView::loadStarted, this, [this]() {
        m_loaded = false;
    });
    connect(this, &QWebEngineView::loadFinished, this, [this]() {
        m_loaded = true;
    });

#if defined(QTBUG_65223_WORKAROUND)
    connect(this, &QWebEngineView::loadProgress, this, [this](int progress) {
        if(progress == 100) {
            emit loadFinished(true);
        }
    });
#endif

    m_toolsMenu = new PageToolsMenu(this);
}

void WebView::setProfile(WebProfile *profile)
{
    m_profile = profile;
    const auto url = this->url();
    setPage(new WebPage(profile, this));
    this->load(url);
}

bool WebView::isLoaded() const
{
    return m_loaded;
}

void WebView::search(const QString &term)
{
    const QString searchUrl = m_profile->search().arg(QString(QUrl::toPercentEncoding(term)));
    load(searchUrl);
}

WebView *WebView::createWindow(QWebEnginePage::WebWindowType type)
{
    if(m_parentWindow == nullptr) {
        qDebug("WebView::createWindow: parent window not found, returning nullptr");
        return nullptr;
    }

    // parent Window has been found
    auto index = m_parentWindow->addTab();
    WebView *view = m_parentWindow->view(index);
    switch(type) {
    case QWebEnginePage::WebBrowserWindow:
        // a complete web browser window
        break;

    case QWebEnginePage::WebBrowserTab:
        // a web browser tab
        m_parentWindow->setCurrentTab(index);
        break;

    case QWebEnginePage::WebDialog:
        // a window without decorations
        break;

    case QWebEnginePage::WebBrowserBackgroundTab:
        // a web browser tab, but don't swap to it
        break;
    }

    return view;
}

void WebView::contextMenuEvent(QContextMenuEvent *event)
{
    QMenu *menu = page()->createStandardContextMenu();

    // zoom widget
    menu->addSeparator();
    {
        auto *zoomSlider = new QSlider(Qt::Horizontal);
        zoomSlider->setMinimum(5);
        zoomSlider->setMaximum(50);
        zoomSlider->setValue(10);

        auto *zoomAction = menu->addAction(tr("Zoom: %1x").arg(zoomFactor()));
        connect(zoomAction, &QAction::triggered, this, [zoomSlider]() {
            zoomSlider->setValue(10);
        });

        connect(zoomSlider, &QSlider::valueChanged, this, [this, zoomAction](int value) {
            zoomAction->setText(tr("Zoom: %1x").arg(static_cast<qreal>(value) / 10));
            setZoomFactor(static_cast<qreal>(value) / 10);
        });

        auto *zoomWidgetAction = new QWidgetAction(this);
        zoomWidgetAction->setDefaultWidget(zoomSlider);

        menu->addAction(zoomWidgetAction);
    }

    menu->popup(event->globalPos());
}

void WebView::triggerViewAction(WebView::ViewAction action)
{
    switch(action) {
    case GoHome:
        load(m_profile->homepage());
        break;
    case BookmarkPage:
        emit newBookmark(this->title(), this->url());
        break;
    }
}