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#include "maemo6als.h"

const char *maemo6als::id("maemo6.als");

bool maemo6als::m_initDone = false;

maemo6als::maemo6als(QSensor *sensor)

    : maemo6sensorbase(sensor)

{

    setReading<QAmbientLightReading>(&m_reading);

    if (!m_initDone) {

        initSensor<ALSSensorChannelInterface>("alssensor");

        if (m_sensorInterface)

            QObject::connect(static_cast<const ALSSensorChannelInterface*>(m_sensorInterface), SIGNAL(ALSChanged(const int&)), this, SLOT(slotDataAvailable(const int&)));

        else

            qWarning() << "Unable to initialize ambient light sensor.";

        // metadata

        addOutputRange(0, 5, 1);

        setDescription(QLatin1String("Ambient light intensity given as 5 pre-defined levels"));

        m_initDone = true;

    }

}

void maemo6als::slotDataAvailable(const int& data)

{

    // Convert from integer to fixed levels

    // TODO: verify levels

    QAmbientLightReading::LightLevel level;

    if (data < 0) {

        level = QAmbientLightReading::Undefined;

    } else if (data < 10) {

        level = QAmbientLightReading::Dark;

    } else if (data < 50) {

        level = QAmbientLightReading::Twilight;

    } else if (data < 100) {

        level = QAmbientLightReading::Light;

    } else if (data < 150) {

        level = QAmbientLightReading::Bright;

    } else {

        level = QAmbientLightReading::Sunny;

    }

    if (level != m_reading.lightLevel()) {

        m_reading.setLightLevel(level);

        //m_reading.setTimestamp(data.timestamp());

        m_reading.setTimestamp(createTimestamp()); //TODO: use correct timestamp

        newReadingAvailable();

    }

}