#ifndef __JACOUSTICS__JTRANSCEIVER__
#define __JACOUSTICS__JTRANSCEIVER__

#include "JDB/JToAshort.hh"

#include "JAcoustics/JEmitter.hh"
#include "JAcoustics/JReceiver.hh"
#include "JAcoustics/JSoundVelocity.hh"
#include "JAcoustics/JTransmission.hh"


/**
 * \file
 *
 * Acoustic transceiver.
 * \author mdejong
 */
namespace JACOUSTICS {}
namespace JPP { using namespace JACOUSTICS; }

namespace JACOUSTICS {

  using JDATABASE::JToAshort;


  /**
   * Acoustic transceiver.
   */
  struct JTransceiver :
    public JEmitter,
    public JReceiver
  {
    /**
     * Default constructor.
     */
    JTransceiver() :
      emitter (),
      receiver()
    {}


    /**
     * Constructor.
     *
     * \param  emitter        emitter
     * \param  receiver       receiver
     */
    JTransceiver(const JEmitter&  emitter,
		 const JReceiver& receiver) :
      emitter (emitter),
      receiver(receiver)
    {}


    /**
     * Get transmission.
     *
     * \param  data           time-of-arrival
     * \param  V              sound velocity
     * \return                transmission
     */
    JTransmission getTransmission(const JToAshort&              data,
				  const JAbstractSoundVelocity& V) const 
    {
      const double toa = data.UNIXTIMEBASE  +  receiver.getT(data.TOA_S);
      const double t1  = V.getTime(this->getDistance(),
				   this->emitter .getZ(),
				   this->receiver.getZ());

      return JTransmission(data.RUNNUMBER,
			   this->receiver.getID(),
			   data.QUALITYFACTOR,
			   data.QUALITYNORMALISATION,
			   toa,
			   toa  -  t1);
    }


    /**
     * Get distance between emitter and receiver.
     *
     * \return                distance
     */
    inline double getDistance() const
    {
      return emitter.getDistance(receiver);
    }

    JEmitter  emitter;
    JReceiver receiver;
  };
}

#endif