/*
 * Copyright (C) 2005-2019 Centre National d'Etudes Spatiales (CNES)
 *
 * This file is part of Orfeo Toolbox
 *
 *     https://www.orfeo-toolbox.org/
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef otbAtmosphericEffects_h
#define otbAtmosphericEffects_h

#include "otbRadiometryCorrectionParametersToAtmosphericRadiativeTerms.h"

namespace otb
{
/** \class AtmosphericEffects
   * \brief This class applies atmospheric effects, computed from otbAtmosphericCorrectionParametersTo6SRadiativeTerms  to an input spectrum
 * (otbSpectralResponse) using the otbSurfaceReflectanceToReflectanceFilter.
   *
   * The two templates indicate:
   * - the SpectralResponse input (from the JPL ASTER spectral library for example see : http://speclib.jpl.nasa.gov/)
   * - the SatelliteRSR relatives spectral response of a sensor (RSR).
   *
   * \sa itk::DataObject
 *
 * \ingroup OTBSimulation
 */
template <class TSpectralResponse, class TRSR>
class AtmosphericEffects : public itk::DataObject
{
public:
  /** Standard class typedefs */
  typedef AtmosphericEffects            Self;
  typedef itk::DataObject               Superclass;
  typedef itk::SmartPointer<Self>       Pointer;
  typedef itk::SmartPointer<const Self> ConstPointer;

  /** Template parameters typedef. */
  /** Spectral response of a material (from the JPL ASTER spectral library for example)*/
  typedef TSpectralResponse InputSpectralResponseType;
  /** Template parameters typedef. */
  /** The relatives spectral response of a sensor (RSR)*/
  typedef TRSR InputRSRType;

  typedef typename InputRSRType::Pointer              InputRSRPointerType;
  typedef typename InputSpectralResponseType::Pointer InputSpectralResponsePointerType;

  typedef typename InputRSRType::PrecisionType         PrecisionType;
  typedef typename InputRSRType::ValuePrecisionType    ValuePrecisionType;
  typedef typename InputSpectralResponseType::PairType PairType;


  typedef otb::AtmosphericRadiativeTerms                  AtmosphericRadiativeTermsType;
  typedef typename AtmosphericRadiativeTermsType::Pointer AtmosphericRadiativeTermsPointerType;

  /** Standard macros */
  itkNewMacro(Self);
  itkTypeMacro(AtmosphericEffects, DataObject);

  itkGetConstObjectMacro(InputSatRSR, InputRSRType);
  itkSetObjectMacro(InputSatRSR, InputRSRType);

  itkGetConstObjectMacro(InputSpectralResponse, InputSpectralResponseType);
  itkSetObjectMacro(InputSpectralResponse, InputSpectralResponseType);

  /** Get/Set Atmospheric Radiative Terms. */
  void SetAtmosphericRadiativeTerms(AtmosphericRadiativeTermsPointerType atmoRadTerms)
  {
    m_AtmosphericRadiativeTerms = atmoRadTerms;
    this->Modified();
  }
  itkGetConstObjectMacro(AtmosphericRadiativeTerms, AtmosphericRadiativeTermsType);
  // itkSetObjectMacro(AtmosphericRadiativeTerms, AtmosphericRadiativeTermsType);

  itkGetObjectMacro(CorrectedSpectralResponse, InputSpectralResponseType);


  //         void  LoadFilterFunctionAtmosphericCorrectionParameters( double step = 0.0025);
  void Process(/*const unsigned int numBand*/);

protected:
  /** Constructor */
  AtmosphericEffects();
  /** Constructor from a ASCII file */
  // AtmosphericEffects( const std::string & filename );
  /** Destructor */
  ~AtmosphericEffects() override{};
  /** PrintSelf method */
  // void PrintSelf(std::ostream& os, itk::Indent indent) const;


private:
  AtmosphericEffects(const Self&) = delete;
  void operator=(const Self&) = delete;

  AtmosphericRadiativeTermsPointerType m_AtmosphericRadiativeTerms;
  InputSpectralResponsePointerType     m_InputSpectralResponse;
  InputSpectralResponsePointerType     m_CorrectedSpectralResponse;
  InputRSRPointerType                  m_InputSatRSR;

  bool m_IsSetAtmosphericRadiativeTerms;
};
} // end namespace otb


#ifndef OTB_MANUAL_INSTANTIATION
#include "otbAtmosphericEffects.hxx"
#endif

#endif