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#include "dbuscomm_maemo_p.h"

#include <iostream>

using namespace std;

QTM_BEGIN_NAMESPACE

const QString DBusComm::positioningdService   = QString("com.nokia.positioningd.client");

const QString DBusComm::positioningdPath      = QString("/com/nokia/positioningd/client");

const QString DBusComm::positioningdInterface = QString("com.nokia.positioningd.client");

DBusComm::DBusComm()

{

}

int DBusComm::init()

{

    if (!QDBusConnection::sessionBus().isConnected()) {

        cerr << "Cannot connect to the D-BUS session bus.\n";

        return -1;

    }

    // Application auto-start by dbus may take a while, so try

    // connecting a few times.

    int cnt = 6; 

    do {

        cout << "Connecting to positioning daemon..." << endl;

        positioningdProxy = new QDBusInterface(positioningdService,

                                               positioningdPath,

                                               positioningdInterface,

                                               QDBusConnection::sessionBus());

        usleep(500000);

        cnt--;

    } while (cnt && (positioningdProxy->isValid() == false));

    if (positioningdProxy->isValid() == false) {

        cerr << "DBus connection to positioning daemon failed.\n";

        return -1;

    }

    if (createUniqueName() == false) { // set myService, myPath 

        return -1;

    }

    dbusServer = new DBusServer(&serverObj, this);

    QDBusConnection::sessionBus().registerObject(myPath, &serverObj);

    if (!QDBusConnection::sessionBus().registerService(myService)) {

        cerr << qPrintable(QDBusConnection::sessionBus().lastError().message()) << endl;

        return -1;

    }

    sendDBusRegister();

    return 0;

}

void DBusComm::receivePositionUpdate(const QGeoPositionInfo &update)

{

    emit receivedPositionUpdate(update);

}

void DBusComm::receiveSatellitesInView(const QList<QGeoSatelliteInfo> &info)

{

    emit receivedSatellitesInView(info);

}

void DBusComm::receiveSatellitesInUse(const QList<QGeoSatelliteInfo> &info)

{

    emit receivedSatellitesInUse(info);

}

void DBusComm::receiveSettings(const QGeoPositionInfoSource::PositioningMethod methods,

                              const int interval)

{

    Q_UNUSED(methods)

    cout << "Interval confirmed to be :" << interval << "\n";

    // FIXME save these

    return;

}

bool DBusComm::sendDBusRegister()

{

#if 1

    QDBusReply<int> reply;

    reply = positioningdProxy->call("registerListener",

                                    myService.toAscii().constData(),

                                    myPath.toAscii().constData());

    if (reply.isValid()) {

        clientId = reply.value();

        cout << "Register client ID: " << clientId << endl;

    } else {

        cerr << endl << "DBus error:\n";

        cerr << reply.error().name().toAscii().constData() << endl;

        cerr << reply.error().message().toAscii().constData() << endl;

        return false;

    }

#else

    QList<QVariant> args;

    QDBusMessage message = QDBusMessage::createMethodCall(positioningdService, positioningdPath,

                                                          positioningdInterface, "registerListener");

    args << myService.toAscii().constData() << myPath.toAscii().constData();

    message.setArguments(args);

    QDBusPendingCall pending = QDBusConnection::systemBus().asyncCall(message, 10000);

    QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(pending, this);

    QObject::connect(watcher, SIGNAL(finished(QDBusPendingCallWatcher*)),

                     this, SLOT(registerDone(QDBusPendingCallWatcher*)));

    cout << "DBusComm::sendDBusRegister() Register client\n";

#endif

    return true;

}

void DBusComm::registerDone(QDBusPendingCallWatcher *call)

{

    QDBusPendingReply<int> reply = *call;

    if (reply.isValid()) {

        clientId = reply.value();

        cout << "Register client ID: " << clientId << endl;

    } 

    else {

        std::cerr << "DBusComm::register Dbus Error:" << qPrintable(reply.error().message()) << "\n";

    }

}

bool DBusComm::sendConfigRequest(Command command, QGeoPositionInfoSource::PositioningMethods method,

                                 int interval) const

{

    QDBusReply<int> reply; 

    reply = positioningdProxy->call("configSession", clientId, command, int(method), interval);

    //cout << "sessionConfigRequest cmd: cmd:" << command << " method: ";

    //cout << method << " interval: " << interval << "\n";

    if (reply.isValid()) {

        int n = reply.value();

        cout << "sessionConfigRequest:Reply: " << n << endl;

    } else {

        cerr << endl << "DBus error:\n";

        cerr << reply.error().name().toAscii().constData() << endl;

        cerr << reply.error().message().toAscii().constData() << endl;

        return false;

    }

    return true;

}

QGeoPositionInfo& DBusComm::requestLastKnownPosition(bool satelliteMethodOnly)

{

    QDBusReply<QByteArray> reply; 

    reply = positioningdProxy->call("latestPosition", satelliteMethodOnly);

    static QGeoPositionInfo update;

    if (reply.isValid()) {

        cout << "requestLastKnownPosition(): received update\n";

        QByteArray message = reply.value();

        QDataStream stream(message);

        stream >> update;

    } else {

        cerr << endl << "DBus error:\n";

        cerr << reply.error().name().toAscii().constData() << endl;

        cerr << reply.error().message().toAscii().constData() << endl;

        update = QGeoPositionInfo();

    }

    return update;

} 

bool DBusComm::createUniqueName()

{

    QFile uuidfile("/proc/sys/kernel/random/uuid");

    if (!uuidfile.open(QIODevice::ReadOnly)) {

        cerr << "UUID file failed.";

        return false;

    }

    QTextStream in(&uuidfile);

    QString uuid = 'I' + in.readLine();

    uuid.replace('-', 'I');

    myService   = "com.nokia.qlocation." + uuid;

    myPath      = "/com/nokia/qlocation/" + uuid;

    return true;

}

#include "moc_dbuscomm_maemo_p.cpp"

QTM_END_NAMESPACE