/**
   \file
   Declaration of GDASProfileModel

   \author M. Will
   \version $Id$
   \date 17 December 2010
*/

#ifndef _atm_GDASProfileModel_h_
#define _atm_GDASProfileModel_h_

static const char CVSId_atm_GDASProfileModel[] =
  "$Id$";

#include <atm/VProfileModel.h>
#include <utl/AugerUnits.h>

namespace utl {
  class TimeStamp;
}

namespace atm {

  class ProfileResult;

  /**
     \class GDASProfileModel GDASProfileModel.h
           "atm/GDASProfileModel.h"

     \brief Molecular profile taken from GDAS database.

     This model provides access to molecular profiles taken
     from GDAS.

     \author M. Will
     \date 9 August 2010
     \ingroup atm_models
  */

  class GDASProfileModel : public atm::VProfileModel {

  public:
    GDASProfileModel();

    void Init();

    /// Table of depth as a function of height
    const ProfileResult& EvaluateDepthVsHeight() const;

    /// Table of height as a function of depth
    const atm::ProfileResult& EvaluateHeightVsDepth() const;

    /// Table of air pressure as a function of height
    const atm::ProfileResult& EvaluatePressureVsHeight() const;

    /// Table of vapor pressure as a function of height
    const ProfileResult& EvaluateVaporPressureVsHeight() const;

    /// Table of temperature as a function of height
    const atm::ProfileResult& EvaluateTemperatureVsHeight() const;

    /// Table of density as a function of height
    const atm::ProfileResult& EvaluateDensityVsHeight() const;

    /// Table of refraction index as a function of height
    const atm::ProfileResult& EvaluateRefractionIndexVsHeight() const;

    // returns true if some data has been cached
    bool HasData() const;

  private:

    // returns true if some data has been cached
    bool CheckForUpdates() const;

    mutable utl::TimeStamp fCurrentTime;

    mutable bool fDbIsEmptyNow;

    REGISTER_MODEL(atm::VProfileModel, "GDAS", GDASProfileModel);
  };

} //


#endif // _atm_GDASProfileModel_h_