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// -------------------------------------------------------------------
//
// Geant4 Class header file
//
// File name:     G4PolarizedGammaConversionModel
//
// Author:        Karim Laihem
//
// Class Description:
//   Implementation of gamma conversion to e+e- in the field of a nucleus
//   including polarization transfer
// -------------------------------------------------------------------

#ifndef G4PolarizedGammaConversionModel_h
#define G4PolarizedGammaConversionModel_h 1

#include "G4BetheHeitlerModel.hh"

class G4DynamicParticle;
class G4Element;
class G4MaterialCutsCouple;
class G4ParticleChangeForGamma;
class G4ParticleDefinition;
class G4PolarizedGammaConversionXS;

class G4PolarizedGammaConversionModel : public G4BetheHeitlerModel
{
 public:
  explicit G4PolarizedGammaConversionModel(
    const G4ParticleDefinition* p = nullptr, const G4String& nam = "polConv");

  virtual ~G4PolarizedGammaConversionModel() override;

  virtual void Initialise(const G4ParticleDefinition*,
                          const G4DataVector&) override;

  virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
                                 const G4MaterialCutsCouple*,
                                 const G4DynamicParticle*, G4double tmin,
                                 G4double maxEnergy) override;

  inline const G4Element* SelectedAtom();

  G4PolarizedGammaConversionModel& operator=(
    const G4PolarizedGammaConversionModel& right) = delete;
  G4PolarizedGammaConversionModel(const G4PolarizedGammaConversionModel&) =
    delete;

 private:
  G4PolarizedGammaConversionXS* fCrossSectionCalculator;
};

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
inline const G4Element* G4PolarizedGammaConversionModel::SelectedAtom()
{
  return GetCurrentElement();
}

#endif