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/// \file G4LDMBremModel.hh
/// \brief Definition of the G4LDMBremModel class

// -------------------------------------------------------------------
//
// 21.03.17 V. Grichine based on G4hBremsstrahlungModel
//
// Class Description:
//
// Implementation of energy loss for LDMPhoton emission by hadrons
//
//
//

#ifndef G4LDMBremModel_h
#define G4LDMBremModel_h 1

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

#include "G4MuBremsstrahlungModel.hh"

class G4ParticleDefinition;

class G4LDMBremModel : public G4MuBremsstrahlungModel
{
  public:
    explicit G4LDMBremModel(const G4ParticleDefinition* p = nullptr,
                            const G4String& nam = "ldmBrem");

    virtual ~G4LDMBremModel();

    inline void SetEpsilon(G4double e) { fEpsilon = e; };
    inline G4double GetEpsilon() { return fEpsilon; };

  protected:
    virtual G4double ComputeDEDXPerVolume(const G4Material*, const G4ParticleDefinition*,
                                          G4double kineticEnergy, G4double cutEnergy) override;

    virtual G4double ComputeDMicroscopicCrossSection(G4double tkin, G4double Z,
                                                     G4double gammaEnergy) override;

    virtual G4double ComputeCrossSectionPerAtom(const G4ParticleDefinition*, G4double kineticEnergy,
                                                G4double Z, G4double A, G4double cutEnergy,
                                                G4double maxEnergy) override;

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

  private:
    // hide assignment operator
    G4LDMBremModel& operator=(const G4LDMBremModel& right) = delete;
    G4LDMBremModel(const G4LDMBremModel&) = delete;

    const G4ParticleDefinition* theLDMPhoton;

    G4double fEpsilon;  // correction for fine_structure_const
    G4double fLDMPhotonMass;
};

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#endif
