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// Internal Headers
#include "lightsensorsym.h"
#include <sensrvgeneralproperties.h>

/**
 * set the id of the Light data sensor
 */
char const * const CLightSensorSym::id("sym.light");


/**
 * Factory function, this is used to create the Light data object
 * @return CLightSensorSym if successful, leaves on failure
 */
CLightSensorSym* CLightSensorSym::NewL(QSensor *sensor)
    {
    CLightSensorSym* self = new (ELeave) CLightSensorSym(sensor);
    CleanupStack::PushL(self);
    self->ConstructL();
    CleanupStack::Pop();//self
    return self;
    }

/**
 * Destructor
 * Closes the backend resources
 */
CLightSensorSym::~CLightSensorSym()
    {
    // Release the backend resources
    Close();
    }

/**
 * Default constructor
 */
CLightSensorSym::CLightSensorSym(QSensor *sensor):CSensorBackendSym(sensor)
        {
        setReading<QLightReading>(&iReading);
        iBackendData.iSensorType = KSensrvChannelTypeIdAmbientLightLuxData;
        }

/*
 * DataReceived is used to retrieve the sensor reading from sensor server
 * It is implemented here to handle Light data sensor specific
 * reading data and provides conversion and utility code
 */
void CLightSensorSym::DataReceived(CSensrvChannel &aChannel, TInt aCount, TInt /*aDataLost*/)
    {
    ProcessData(aChannel, aCount, iData);
    }

void CLightSensorSym::ProcessReading()
    {
    TReal lightValue = iData.iAmbientLight;

    // Get a lock on the reading data
    iBackendData.iReadingLock.Wait();
    // Set the timestamp
    iReading.setTimestamp(iData.iTimeStamp.Int64());
    // Set the light data
    iReading.setLux(lightValue);
    // Release the lock
    iBackendData.iReadingLock.Signal();
    // Notify that a reading is available
    newReadingAvailable();
    }

/**
 * Second phase constructor
 * Initialize the backend resources
 */
void CLightSensorSym::ConstructL()
    {
    //Initialize the backend resources
    InitializeL();
    }