/*
 * Copyright 2016 Aleix Pol Gonzalez <aleixpol@kde.org>
 *
 * 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 2 of
 * the License or (at your option) version 3 or any later version
 * accepted by the membership of KDE e.V. (or its successor approved
 * by the membership of KDE e.V.), which shall act as a proxy
 * defined in Section 14 of version 3 of the license.
 *
 * 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 "deviceindicator.h"
#include <KLocalizedString>

template <typename T, typename W>
static void setWhenAvailable(const QDBusPendingReply<T> &pending, W func, QObject* parent)
{
    QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(pending, parent);
    QObject::connect(watcher, &QDBusPendingCallWatcher::finished,
                    parent, [func](QDBusPendingCallWatcher* watcher) {
                        watcher->deleteLater();
                        QDBusPendingReply<T> reply = *watcher;
                        func(reply.value());
                    });
}

class BatteryAction : public QAction
{
Q_OBJECT
public:
    BatteryAction(DeviceDbusInterface* device)
        : QAction()
        , m_batteryIface(new DeviceBatteryDbusInterface(device->id(), this))
    {
        setWhenAvailable(m_batteryIface->charge(), [this](int charge) { setCharge(charge); }, this);
        setWhenAvailable(m_batteryIface->isCharging(), [this](bool charging) { setCharging(charging); }, this);

        connect(m_batteryIface, SIGNAL(chargeChanged(int)), this, SLOT(setCharge(int)));
        connect(m_batteryIface, SIGNAL(stateChanged(bool)), this, SLOT(setCharging(bool)));

        update();
    }

    void update() {
        if (m_charge < 0)
            setText(i18n("No Battery"));
        else if (m_charging)
            setText(i18n("Battery: %1% (Charging)", m_charge));
        else
            setText(i18n("Battery: %1%", m_charge));
    }

private Q_SLOTS:
    void setCharge(int charge) { m_charge = charge; update(); }
    void setCharging(bool charging) { m_charging = charging; update(); }

private:
    DeviceBatteryDbusInterface* m_batteryIface;
    int m_charge = -1;
    bool m_charging = false;
};


DeviceIndicator::DeviceIndicator(DeviceDbusInterface* device)
    : QMenu(device->name(), nullptr)
    , m_device(device)
{
    setIcon(QIcon::fromTheme(device->iconName()));
    setToolTip(device->type());

    connect(device, SIGNAL(nameChanged(QString)), this, SLOT(setText(QString)));

    addAction(new BatteryAction(device));

    auto browse = addAction(i18n("Browse device"));
    connect(browse, &QAction::triggered, device, [device](){
        SftpDbusInterface* sftpIface = new SftpDbusInterface(device->id(), device);
        sftpIface->startBrowsing();
        sftpIface->deleteLater();
    });
    auto findDevice = addAction(i18n("Find device"));
    connect(findDevice, &QAction::triggered, device, [device](){
        FindMyPhoneDeviceDbusInterface* iface = new FindMyPhoneDeviceDbusInterface(device->id(), device);
        iface->ring();
        iface->deleteLater();
    });

//     addAction(i18n("Send file")); //TODO

    addSeparator();
    auto unpair = addAction(i18n("Unpair"));
    connect(unpair, &QAction::triggered, device, [device](){
        device->unpair();
    });
}

#include "deviceindicator.moc"