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#include "maemo6sensorbase.h"
#include <ctime>

SensorManagerInterface* maemo6sensorbase::m_remoteSensorManager = 0;
const float maemo6sensorbase::GRAVITY_EARTH = 9.80665;
const float maemo6sensorbase::GRAVITY_EARTH_THOUSANDTH = 0.00980665;

maemo6sensorbase::maemo6sensorbase(QSensor *sensor)
    : QSensorBackend(sensor), m_sensorRunning(false)
{
    if (!m_remoteSensorManager)
        m_remoteSensorManager = &SensorManagerInterface::instance();
}

maemo6sensorbase::~maemo6sensorbase()
{
   if (m_sensorInterface) {
        stop();
        QObject::disconnect(m_sensorInterface);
        delete m_sensorInterface, m_sensorInterface = 0;
    }
}

void maemo6sensorbase::start()
{
    if (m_sensorRunning)
        return;
    if (m_sensorInterface) {
        int dataRate = sensor()->dataRate();
        int interval = 1000 / dataRate;
        // for testing max speed
        //interval = 1;
        //dataRate = 1000;
        if (dataRate > 0) {
            qDebug() << "Setting data rate" << dataRate << "Hz (interval" << interval << "ms) for" << m_sensorInterface->id();
            m_sensorInterface->setInterval(interval);
        } else {
            qDebug() << "Sensor data rate" << dataRate << "Hz";
        }
        m_sensorInterface->start();
    }
    m_sensorRunning = true;
}

void maemo6sensorbase::stop()
{
    if (!m_sensorRunning)
        return;
    if (m_sensorInterface)
        m_sensorInterface->stop();
    m_sensorRunning = false;
}

qtimestamp maemo6sensorbase::createTimestamp()
{
    timespec stamp;
    clock_gettime(CLOCK_MONOTONIC, &stamp);
    qtimestamp data = stamp.tv_sec;
    data = data * 1000000;
    data = stamp.tv_nsec / 1000 + data;
    return data;
}