#ifndef _atm_GOESDB_h_
#define _atm_GOESDB_h_

#include <map>

#include <utl/UTMPoint.h>

namespace utl {
  class Point;
}

namespace atm {

  /**
     \class GOESDB

     \brief Detector description interface for GOES cloud data

     \author T. Paul
     \author T. Yapici
     \author M. Unger
     \date   17 August 2012
     \version $Id$
     \ingroup atm
  */

  class GOESDB {

  public:

    //! Check if cloud probability data exists for a given pixel at the current time
    bool HasData(const unsigned int pixelId) const;

    //! Get cloud probability from the pixel id
    double GetCloudProbability(const unsigned int pixelId) const;

    //! Get cloud probability for a particular point
    /** Since the cloud probability here comes from GOES
        measurements, the height is not used in the calculation */
    double GetCloudProbability(const utl::Point& p) const;
    double GetCloudProbability(const utl::UTMPoint& p) const;

    //! Get max. cloud probability along line of sight between pos1 and pos2
    double GetMaximumCloudProbability(const utl::Point& pos1,
                                      const utl::Point& pos2) const;

    const utl::UTMPoint& GetPixelCenter(const unsigned int pixelId) const;
    double GetPixelWidthEasting() const;
    double GetPixelWidthNorthing() const;
    unsigned int GetNumberOfPixels() const;

  private:

    int GetPixelId(const double easting, const double northing) const;
    double GetCloudProbability(const double easting, const double northing) const;
    int GetCloudProbabilityIndex(const unsigned int pixelId) const;
    double IndexToProbability(const unsigned int cpIndex) const;

    GOESDB(const GOESDB&);
    GOESDB& operator=(GOESDB&);

    GOESDB() {}
    virtual ~GOESDB() {}

    int GetNorthPixel(const double northing) const;
    int GetEastPixel(const double easting, const int northPixel) const;

    mutable std::map<unsigned int, int> fPixelMap;
    mutable std::vector<utl::UTMPoint> fPixelCenters;

    friend class Atmosphere;
  };
}

#endif // _atm_GOESDB_h_