#include <QComboBox>
#include <QLabel>
#include <QPushButton>
#include <QString>
#include <QVBoxLayout>

#include "ChatPage.h"
#include "Config.h"
#include "UserSettingsPage.h"
#include "Utils.h"
#include "WebRTCSession.h"
#include "dialogs/AcceptCall.h"
#include "ui/Avatar.h"

namespace dialogs {

AcceptCall::AcceptCall(const QString &caller,
                       const QString &displayName,
                       const QString &roomName,
                       const QString &avatarUrl,
                       bool isVideo,
                       QWidget *parent)
  : QWidget(parent)
{
        std::string errorMessage;
        WebRTCSession *session = &WebRTCSession::instance();
        if (!session->havePlugins(false, &errorMessage)) {
                emit ChatPage::instance()->showNotification(QString::fromStdString(errorMessage));
                emit close();
                return;
        }
        if (isVideo && !session->havePlugins(true, &errorMessage)) {
                emit ChatPage::instance()->showNotification(QString::fromStdString(errorMessage));
                emit close();
                return;
        }

        session->refreshDevices();
        microphones_ = session->getDeviceNames(
          false, ChatPage::instance()->userSettings()->microphone().toStdString());
        if (microphones_.empty()) {
                emit ChatPage::instance()->showNotification(
                  tr("Incoming call: No microphone found."));
                emit close();
                return;
        }
        if (isVideo)
                cameras_ = session->getDeviceNames(
                  true, ChatPage::instance()->userSettings()->camera().toStdString());

        setAutoFillBackground(true);
        setWindowFlags(Qt::Tool | Qt::WindowStaysOnTopHint);
        setWindowModality(Qt::WindowModal);
        setAttribute(Qt::WA_DeleteOnClose, true);

        setMinimumWidth(conf::modals::MIN_WIDGET_WIDTH);
        setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Maximum);

        auto layout = new QVBoxLayout(this);
        layout->setSpacing(conf::modals::WIDGET_SPACING);
        layout->setMargin(conf::modals::WIDGET_MARGIN);

        QFont f;
        f.setPointSizeF(f.pointSizeF());

        QFont labelFont;
        labelFont.setWeight(QFont::Medium);

        QLabel *displayNameLabel = nullptr;
        if (!displayName.isEmpty() && displayName != caller) {
                displayNameLabel = new QLabel(displayName, this);
                labelFont.setPointSizeF(f.pointSizeF() * 2);
                displayNameLabel->setFont(labelFont);
                displayNameLabel->setAlignment(Qt::AlignCenter);
        }

        QLabel *callerLabel = new QLabel(caller, this);
        labelFont.setPointSizeF(f.pointSizeF() * 1.2);
        callerLabel->setFont(labelFont);
        callerLabel->setAlignment(Qt::AlignCenter);

        auto avatar = new Avatar(this, QFontMetrics(f).height() * 6);
        if (!avatarUrl.isEmpty())
                avatar->setImage(avatarUrl);
        else
                avatar->setLetter(utils::firstChar(roomName));

        const int iconSize        = 22;
        QLabel *callTypeIndicator = new QLabel(this);
        callTypeIndicator->setPixmap(
          QIcon(isVideo ? ":/icons/icons/ui/video-call.png" : ":/icons/icons/ui/place-call.png")
            .pixmap(QSize(iconSize * 2, iconSize * 2)));

        QLabel *callTypeLabel = new QLabel(isVideo ? tr("Video Call") : tr("Voice Call"), this);
        labelFont.setPointSizeF(f.pointSizeF() * 1.1);
        callTypeLabel->setFont(labelFont);
        callTypeLabel->setAlignment(Qt::AlignCenter);

        auto buttonLayout = new QHBoxLayout;
        buttonLayout->setSpacing(18);
        acceptBtn_ = new QPushButton(tr("Accept"), this);
        acceptBtn_->setDefault(true);
        acceptBtn_->setIcon(
          QIcon(isVideo ? ":/icons/icons/ui/video-call.png" : ":/icons/icons/ui/place-call.png"));
        acceptBtn_->setIconSize(QSize(iconSize, iconSize));

        rejectBtn_ = new QPushButton(tr("Reject"), this);
        rejectBtn_->setIcon(QIcon(":/icons/icons/ui/end-call.png"));
        rejectBtn_->setIconSize(QSize(iconSize, iconSize));
        buttonLayout->addWidget(acceptBtn_);
        buttonLayout->addWidget(rejectBtn_);

        microphoneCombo_ = new QComboBox(this);
        for (const auto &m : microphones_)
                microphoneCombo_->addItem(QIcon(":/icons/icons/ui/microphone-unmute.png"),
                                          QString::fromStdString(m));

        if (!cameras_.empty()) {
                cameraCombo_ = new QComboBox(this);
                for (const auto &c : cameras_)
                        cameraCombo_->addItem(QIcon(":/icons/icons/ui/video-call.png"),
                                              QString::fromStdString(c));
        }

        if (displayNameLabel)
                layout->addWidget(displayNameLabel, 0, Qt::AlignCenter);
        layout->addWidget(callerLabel, 0, Qt::AlignCenter);
        layout->addWidget(avatar, 0, Qt::AlignCenter);
        layout->addWidget(callTypeIndicator, 0, Qt::AlignCenter);
        layout->addWidget(callTypeLabel, 0, Qt::AlignCenter);
        layout->addLayout(buttonLayout);
        layout->addWidget(microphoneCombo_);
        if (cameraCombo_)
                layout->addWidget(cameraCombo_);

        connect(acceptBtn_, &QPushButton::clicked, this, [this]() {
                ChatPage::instance()->userSettings()->setMicrophone(
                  QString::fromStdString(microphones_[microphoneCombo_->currentIndex()]));
                if (cameraCombo_) {
                        ChatPage::instance()->userSettings()->setCamera(
                          QString::fromStdString(cameras_[cameraCombo_->currentIndex()]));
                }
                emit accept();
                emit close();
        });
        connect(rejectBtn_, &QPushButton::clicked, this, [this]() {
                emit reject();
                emit close();
        });
}

}