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#include "maemo6compass.h"

char const * const maemo6compass::id("maemo6.compass");
bool maemo6compass::m_initDone = false;

maemo6compass::maemo6compass(QSensor *sensor)
    : maemo6sensorbase(sensor)
{
    const QString sensorName = "compasssensor";
    initSensor<CompassSensorChannelInterface>(sensorName, m_initDone);

    if (m_sensorInterface){
        if (!(QObject::connect(m_sensorInterface, SIGNAL(dataAvailable(const Compass&)),
                               this, SLOT(slotDataAvailable(const Compass&)))))
            qWarning() << "Unable to connect "<< sensorName;
    }
    else
        qWarning() << "Unable to initialize "<<sensorName;

    setReading<QCompassReading>(&m_reading);
    // metadata
    addDataRate(1, 130); // 43 Hz
    addOutputRange(0, 359, 1);
    setDescription(QLatin1String("Measures compass north in degrees"));
}

void maemo6compass::slotDataAvailable(const Compass& data)
{
    // The scale for level is [0,3], where 3 is the best
    // Qt: Measured as a value from 0 to 1 with higher values being better.
    m_reading.setCalibrationLevel(((float) data.level()) / 3.0);

    // The scale for degrees from sensord is [0,359]
    // Value can be directly used as azimuth
    m_reading.setAzimuth(data.degrees());

    m_reading.setTimestamp(data.data().timestamp_);
    newReadingAvailable();
}