#include "widgets/helper/splitheader.hpp"
#include "singletons/thememanager.hpp"
#include "twitch/twitchchannel.hpp"
#include "util/layoutcreator.hpp"
#include "util/urlfetch.hpp"
#include "widgets/split.hpp"
#include "widgets/splitcontainer.hpp"
#include "widgets/tooltipwidget.hpp"

#include <QByteArray>
#include <QDrag>
#include <QMimeData>
#include <QPainter>

namespace chatterino {
namespace widgets {

SplitHeader::SplitHeader(Split *_split)
    : BaseWidget(_split)
    , split(_split)
{
    this->setMouseTracking(true);

    util::LayoutCreator<SplitHeader> layoutCreator(this);
    auto layout = layoutCreator.emplace<QHBoxLayout>().withoutMargin();
    {
        // dropdown label
        auto dropdown = layout.emplace<RippleEffectLabel>(this).assign(&this->dropdownLabel);
        dropdown->getLabel().setTextFormat(Qt::RichText);
        dropdown->getLabel().setText("<img src=':/images/tool_moreCollapser_off16.png' />");
        dropdown->getLabel().setScaledContents(true);
        dropdown->setMouseTracking(true);
        this->addDropdownItems(dropdown.getElement());
        QObject::connect(dropdown.getElement(), &RippleEffectLabel::clicked, this, [this] {
            QTimer::singleShot(80, [&] {
                this->dropdownMenu.move(
                    this->dropdownLabel->mapToGlobal(QPoint(0, this->dropdownLabel->height())));
                this->dropdownMenu.show();
            });
        });

        // channel name label
        auto title = layout.emplace<SignalLabel>().assign(&this->titleLabel);
        title->setMouseTracking(true);
        QSizePolicy policy;
        policy.setHorizontalStretch(1);
        policy.setHorizontalPolicy(QSizePolicy::Policy::Expanding);
        title->setSizePolicy(policy);
        //        title->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Maximum);
        //        layout->setStretch(1, 1000);
        QObject::connect(this->titleLabel, &SignalLabel::mouseDoubleClick, this,
                         &SplitHeader::mouseDoubleClickEvent);

        // moderation mode
        auto moderation = layout.emplace<RippleEffectLabel>(this).assign(&this->moderationLabel);
        moderation->setMouseTracking(true);
        moderation->getLabel().setScaledContents(true);
        moderation->getLabel().setTextFormat(Qt::RichText);
        moderation->getLabel().setText("<img src=':/images/tool_moreCollapser_off16.png' />");
    }

    // ---- misc
    this->layout()->setMargin(0);
    this->refreshTheme();

    this->updateChannelText();

    //    this->titleLabel.setAlignment(Qt::AlignCenter);

    this->initializeChannelSignals();

    this->split->channelChanged.connect([this]() {
        this->initializeChannelSignals();  //
    });
}

SplitHeader::~SplitHeader()
{
    this->onlineStatusChangedConnection.disconnect();
}

void SplitHeader::addDropdownItems(RippleEffectLabel *label)
{
    connect(this->dropdownLabel, &RippleEffectLabel::clicked, this,
            &SplitHeader::leftButtonClicked);

    // clang-format off
    this->dropdownMenu.addAction("Add new split", this->split, &Split::doAddSplit, QKeySequence(tr("Ctrl+T")));
    this->dropdownMenu.addAction("Close split", this->split, &Split::doCloseSplit, QKeySequence(tr("Ctrl+W")));
    this->dropdownMenu.addAction("Move split", this, SLOT(menuMoveSplit()));
    this->dropdownMenu.addAction("Popup", this->split, &Split::doPopup);
    this->dropdownMenu.addAction("Open viewer list", this->split, &Split::doOpenViewerList);
    this->dropdownMenu.addSeparator();
    this->dropdownMenu.addAction("Change channel", this->split, &Split::doChangeChannel, QKeySequence(tr("Ctrl+R")));
    this->dropdownMenu.addAction("Clear chat", this->split, &Split::doClearChat);
    this->dropdownMenu.addAction("Open channel", this->split, &Split::doOpenChannel);
    this->dropdownMenu.addAction("Open popup player", this->split, &Split::doOpenPopupPlayer);
    this->dropdownMenu.addAction("Open in Streamlink", this->split, &Split::doOpenStreamlink);
    this->dropdownMenu.addSeparator();
    this->dropdownMenu.addAction("Reload channel emotes", this, SLOT(menuReloadChannelEmotes()));
    this->dropdownMenu.addAction("Manual reconnect", this, SLOT(menuManualReconnect()));
    this->dropdownMenu.addSeparator();
    this->dropdownMenu.addAction("Show changelog", this, SLOT(menuShowChangelog()));
    // clang-format on
}

void SplitHeader::initializeChannelSignals()
{
    // Disconnect any previous signal first
    this->onlineStatusChangedConnection.disconnect();

    auto channel = this->split->getChannel();
    twitch::TwitchChannel *twitchChannel = dynamic_cast<twitch::TwitchChannel *>(channel.get());

    if (twitchChannel) {
        twitchChannel->onlineStatusChanged.connect([this]() {
            this->updateChannelText();  //
        });
    }
}

void SplitHeader::resizeEvent(QResizeEvent *event)
{
    int w = 28 * getDpiMultiplier();

    this->setFixedHeight(w);
    this->dropdownLabel->setFixedWidth(w);
    this->moderationLabel->setFixedWidth(w);
}

void SplitHeader::updateChannelText()
{
    const std::string channelName = this->split->channelName;
    if (channelName.empty()) {
        this->titleLabel->setText("<no channel>");
    } else {
        auto channel = this->split->getChannel();

        twitch::TwitchChannel *twitchChannel = dynamic_cast<twitch::TwitchChannel *>(channel.get());

        if (twitchChannel != nullptr && twitchChannel->isLive) {
            this->isLive = true;
            this->tooltip = "<style>.center    { text-align: center; }</style>"
                            "<p class = \"center\">" +
                            twitchChannel->streamStatus + "<br><br>" + twitchChannel->streamGame +
                            "<br>"
                            "Live for " +
                            twitchChannel->streamUptime + " with " +
                            twitchChannel->streamViewerCount +
                            " viewers"
                            "</p>";
            this->titleLabel->setText(QString::fromStdString(channelName) + " (live)");
        } else {
            this->isLive = false;
            this->titleLabel->setText(QString::fromStdString(channelName));
            this->tooltip = "";
        }
    }
}

void SplitHeader::paintEvent(QPaintEvent *)
{
    QPainter painter(this);

    painter.fillRect(rect(), this->themeManager.splits.header.background);
    painter.setPen(this->themeManager.splits.header.border);
    painter.drawRect(0, 0, width() - 1, height() - 1);
}

void SplitHeader::mousePressEvent(QMouseEvent *event)
{
    this->dragging = true;

    this->dragStart = event->pos();
}

void SplitHeader::mouseMoveEvent(QMouseEvent *event)
{
    if (!this->dragging && this->isLive) {
        auto tooltipWidget = TooltipWidget::getInstance();
        tooltipWidget->moveTo(event->globalPos());
        tooltipWidget->setText(tooltip);
        tooltipWidget->show();
    }

    if (this->dragging) {
        if (std::abs(this->dragStart.x() - event->pos().x()) > 12 ||
            std::abs(this->dragStart.y() - event->pos().y()) > 12) {
            auto page = static_cast<SplitContainer *>(this->split->parentWidget());

            if (page != nullptr) {
                SplitContainer::isDraggingSplit = true;
                SplitContainer::draggingSplit = this->split;

                auto originalLocation = page->removeFromLayout(this->split);

                // page->update();

                QDrag *drag = new QDrag(this->split);
                QMimeData *mimeData = new QMimeData;

                mimeData->setData("chatterino/split", "xD");

                drag->setMimeData(mimeData);

                Qt::DropAction dropAction = drag->exec(Qt::MoveAction);

                if (dropAction == Qt::IgnoreAction) {
                    page->addToLayout(this->split, originalLocation);
                }

                SplitContainer::isDraggingSplit = false;
                this->dragging = false;
            }
        }
    }
}

void SplitHeader::leaveEvent(QEvent *event)
{
    TooltipWidget::getInstance()->hide();
    BaseWidget::leaveEvent(event);
}

void SplitHeader::mouseDoubleClickEvent(QMouseEvent *event)
{
    if (event->button() == Qt::LeftButton) {
        this->split->doChangeChannel();
    }
}

void SplitHeader::leftButtonClicked()
{
}

void SplitHeader::rightButtonClicked()
{
}

void SplitHeader::refreshTheme()
{
    QPalette palette;
    palette.setColor(QPalette::Foreground, this->themeManager.splits.header.text);

    this->dropdownLabel->setPalette(palette);
    this->titleLabel->setPalette(palette);
    this->moderationLabel->setPalette(palette);
}

void SplitHeader::menuMoveSplit()
{
}

void SplitHeader::menuReloadChannelEmotes()
{
}

void SplitHeader::menuManualReconnect()
{
}

void SplitHeader::menuShowChangelog()
{
}

}  // namespace widgets
}  // namespace chatterino