/***************************************************************************
 * Copyright (C) 2015-2017 by Savoir-faire Linux                           *
 * Author: Edric Ladent Milaret <edric.ladent-milaret@savoirfairelinux.com>*
 * Author: Andreas Traczyk <andreas.traczyk@savoirfairelinux.com>          *
 *                                                                         *
 * This program is free software; you can redistribute it and/or modify    *
 * it under the terms of the GNU General Public License as published by    *
 * the Free Software Foundation; either version 3 of the License, or       *
 * (at your option) any later version.                                     *
 *                                                                         *
 * This program is distributed in the hope that it will be useful,         *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of          *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           *
 * GNU General Public License for more details.                            *
 *                                                                         *
 * You should have received a copy of the GNU General Public License       *
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.   *
 **************************************************************************/

#include "mainwindow.h"
#include "ui_mainwindow.h"

#include <QDesktopWidget>

#include "media/text.h"
#include "media/textrecording.h"

#ifdef Q_OS_WIN
#include <windows.h>
#include <QWinThumbnailToolBar>
#include <QWinThumbnailToolButton>
#endif

#include "aboutdialog.h"
#include "settingskey.h"
#include "winsparkle.h"
#include "callmodel.h"
#include "callwidget.h"
#include "utils.h"
#include "wizarddialog.h"
#include "version.h"

MainWindow::MainWindow(QWidget* parent) :
    QMainWindow(parent),

    ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    connect(ui->wizardwidget, &WizardWidget::NavigationRequested,
        [this](ScreenEnum scr) {
            int index = scr;
            if (scr == ScreenEnum::SetttingsScreen) {
                index = addSettingsWidget();
            }
            Utils::setStackWidget(ui->navStack, ui->navStack->widget(index));
        });

    connect(ui->callwidget, &CallWidget::NavigationRequested,
        [this](ScreenEnum scr) {
            int index = scr;
            if (scr == ScreenEnum::SetttingsScreen) {
                index = addSettingsWidget();
            }
            Utils::setStackWidget(ui->navStack, ui->navStack->widget(index));
        });

    QIcon icon(":images/jami.png");

    this->setWindowIcon(icon);

    GlobalSystemTray& sysIcon = GlobalSystemTray::instance();
    sysIcon.setIcon(icon);

    QMenu* menu = new QMenu();

    auto configAction = new QAction(tr("Settings"), this);
    connect(configAction, &QAction::triggered,
        [this]() {
            if (auto settingsWidget = getSettingsWidget()) {
                Utils::setStackWidget(ui->navStack, settingsWidget);
            } else {
                auto index = addSettingsWidget();
                Utils::setStackWidget(ui->navStack, ui->navStack->widget(index));
            }
            setWindowState(Qt::WindowActive);
        });
    menu->addAction(configAction);

    auto exitAction = new QAction(tr("Exit"), this);
    connect(exitAction, &QAction::triggered,
        [this]() {
            QCoreApplication::exit();
        });
    menu->addAction(exitAction);

    sysIcon.setContextMenu(menu);
    sysIcon.show();

    connect(&sysIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
            this, SLOT(trayActivated(QSystemTrayIcon::ActivationReason)));

    connect(&CallModel::instance(), SIGNAL(incomingCall(Call*)),
            this, SLOT(onIncomingCall(Call*)));

#ifdef Q_OS_WIN
    HMENU sysMenu = ::GetSystemMenu((HWND) winId(), FALSE);
    if (sysMenu != NULL) {
        ::AppendMenuA(sysMenu, MF_SEPARATOR, 0, 0);
        QString aboutTitle = tr("About");
        ::AppendMenuW(sysMenu, MF_STRING, IDM_ABOUTBOX, aboutTitle.toStdWString().c_str());
    }
#endif

    readSettingsFromRegistry();

    win_sparkle_set_appcast_url("http://dl.jami.net/windows/winsparkle-ring.xml");
    win_sparkle_set_app_details(L"Savoir-faire Linux", L"Jami", QString(VERSION_STRING).toStdWString().c_str());
    win_sparkle_set_shutdown_request_callback([]() {QCoreApplication::exit();});
    win_sparkle_set_did_find_update_callback([]() {MainWindow::instance().showNormal();});
    win_sparkle_init();

    if (win_sparkle_get_last_check_time() == -1) {
        win_sparkle_set_update_check_interval(86400);
    }

    QObject::connect(QCoreApplication::instance(), &QCoreApplication::aboutToQuit, [=]() {
        win_sparkle_cleanup();
    });

    setContextMenuPolicy(Qt::NoContextMenu);

    connect(&GlobalSystemTray::instance(), SIGNAL(messageClicked()), this, SLOT(notificationClicked()));

    connect(&netManager_, &QNetworkConfigurationManager::onlineStateChanged, [=](bool online) {
        Q_UNUSED(online)
        AccountModel::instance().slotConnectivityChanged();
    });

    auto accountList = LRCInstance::accountModel().getAccountList();
    if (accountList.size()) {
        for (const auto& accountId : accountList) {
            auto& accountInfo = LRCInstance::accountModel().getAccountInfo(accountId);
            if (accountInfo.profileInfo.type == lrc::api::profile::Type::RING) {
                if (accountInfo.status == lrc::api::account::Status::ERROR_NEED_MIGRATION) {
                    WizardDialog dlg(WizardDialog::MIGRATION);
                    dlg.exec();
                }
            }
        }
        Utils::setStackWidget(ui->navStack, ui->navStack->widget(ScreenEnum::CallScreen));
    } else {
        Utils::setStackWidget(ui->navStack, ui->navStack->widget(ScreenEnum::WizardScreen));
    }
}

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

int
MainWindow::addSettingsWidget()
{
    int index = -1;
    if (ui->navStack->count() < ScreenEnum::SetttingsScreen + 1) {
        auto settingsWidget = new SettingsWidget(this);
        settingsWidget->updateSettings(ui->callwidget->getLeftPanelWidth());
        index = ui->navStack->addWidget(settingsWidget);
        connect(settingsWidget, &SettingsWidget::NavigationRequested,
            [this](ScreenEnum scr) {
                Utils::setStackWidget(ui->navStack, ui->navStack->widget(scr));
                removeSettingsWidget();
                if (scr == ScreenEnum::CallScreen) {
                    ui->callwidget->update();
                }
            });
    }
    return index;
}

void
MainWindow::removeSettingsWidget()
{
    if (auto settingsWidget = getSettingsWidget()) {
        ui->navStack->removeWidget(settingsWidget);
        settingsWidget->deleteLater();
    }
}

SettingsWidget*
MainWindow::getSettingsWidget()
{
    return qobject_cast<SettingsWidget*>(ui->navStack->widget(ScreenEnum::SetttingsScreen));
}

void
MainWindow::onRingEvent(const QString& uri)
{
    this->showNormal();
    if (not uri.isEmpty()) {
        auto outCall = CallModel::instance().dialingCall();
        outCall->setDialNumber(uri);
        outCall->performAction(Call::Action::ACCEPT);
    }
}

bool
MainWindow::nativeEvent(const QByteArray& eventType, void* message, long* result)
{
    Q_UNUSED(eventType)

#ifdef Q_OS_WIN
    MSG* msg = (MSG*) message;

    if (msg->message == WM_SYSCOMMAND) {
        if ((msg->wParam & 0xfff0) == IDM_ABOUTBOX) {
            *result = 0;

            AboutDialog aboutDialog;
            aboutDialog.exec();

            return true;
        }
    }
#else
    Q_UNUSED(message)
    Q_UNUSED(result)
#endif
    return false;
}

void
MainWindow::trayActivated(QSystemTrayIcon::ActivationReason reason)
{
    if (reason != QSystemTrayIcon::ActivationReason::Context)
        this->show();
}

void
MainWindow::notificationClicked() {
    showNormal();
    activateWindow();
    raise();
}

void
MainWindow::onIncomingCall(Call* call)
{
    Q_UNUSED(call);
    QWidget::showNormal();
}

void
MainWindow::createThumbBar()
{
#ifdef Q_OS_WIN
    QWinThumbnailToolBar* thumbbar = new QWinThumbnailToolBar(this);
    thumbbar->setWindow(this->windowHandle());
    QWinThumbnailToolButton* settings = new QWinThumbnailToolButton(thumbbar);
    settings->setToolTip("Settings");
    QIcon icon(":/images/settings.png");
    settings->setIcon(icon);
    settings->setDismissOnClick(true);
    connect(settings, &QWinThumbnailToolButton::clicked, [this]() {
        if (auto settingsWidget = getSettingsWidget()) {
            Utils::setStackWidget(ui->navStack, settingsWidget);
        } else {
            auto index = addSettingsWidget();
            Utils::setStackWidget(ui->navStack, ui->navStack->widget(index));
        }
    });

    thumbbar->addButton(settings);
#endif
}

void
MainWindow::switchNormalMaximize()
{
    if(isMaximized())
        showNormal();
    else
        showMaximized();
}

void
MainWindow::closeEvent(QCloseEvent* event)
{
    Video::PreviewManager::instance().stopPreview();
    QSettings settings;
    if (settings.value(SettingsKey::closeOrMinimized).toBool()) {
        this->hide();
        event->ignore();
    } else {
        settings.setValue(SettingsKey::geometry, saveGeometry());
        settings.setValue(SettingsKey::windowState, saveState());
    }
    LRCInstance::reset();
    QMainWindow::closeEvent(event);
}

void
MainWindow::readSettingsFromRegistry()
{
    QSettings settings;
    restoreGeometry(settings.value(SettingsKey::geometry).toByteArray());
    restoreState(settings.value(SettingsKey::windowState).toByteArray());
    LRCInstance::editableDataTransferModel()->downloadDirectory = settings.
        value(SettingsKey::downloadPath, "Downloads").toString().toStdString() + "/";
    if (not settings.contains(SettingsKey::enableNotifications)) {
        settings.setValue(SettingsKey::enableNotifications, true);
    }
}