/**
 * Copyright 2013 Albert Vaca <albertvaka@gmail.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 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 "avahiannouncer.h"

#include "devicelinks/udpdevicelink.h"

AvahiAnnouncer::AvahiAnnouncer()
{
    QString serviceType = "_kdeconnect._udp";
    quint16 port = 10601;

    //http://api.kde.org/4.x-api/kdelibs-apidocs/dnssd/html/index.html
    service = new DNSSD::PublicService("KDE Host", serviceType, port);

    mUdpSocket = new QUdpSocket();
    mUdpSocket->bind(port);

    connect(mUdpSocket, SIGNAL(readyRead()), this, SLOT(readPendingNotifications()));

    qDebug() << "listening to udp messages";

}

void AvahiAnnouncer::readPendingNotifications()
{

    qDebug() << "readPendingNotifications";
    
    while (mUdpSocket->hasPendingDatagrams()) {

        QByteArray datagram;
        datagram.resize(mUdpSocket->pendingDatagramSize());
        QHostAddress sender;
        quint16 senderPort;
        mUdpSocket->readDatagram(datagram.data(), datagram.size(), &sender, &senderPort);

        //log.write(datagram);
        qDebug() << ("AvahiAnnouncer incomming udp datagram: " + datagram);

        QString id, name;

        Device* device = new Device(id, name);
        DeviceLink* dl = new UdpDeviceLink(device, sender, 10600);
        links.append(dl);

        emit deviceConnection(dl);

    }

}

AvahiAnnouncer::~AvahiAnnouncer()
{
    delete service;
}

void AvahiAnnouncer::setDiscoverable(bool b)
{
    if (b) service->publishAsync();
}