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//
// Author: Mathieu Karamitros

// The code is developed in the framework of the ESA AO7146
//
// We would be very happy hearing from you, send us your feedback! :)
//
// In order for Geant4-DNA to be maintained and still open-source,
// article citations are crucial. 
// If you use Geant4-DNA chemistry and you publish papers about your software, 
// in addition to the general paper on Geant4-DNA:
//
// Int. J. Model. Simul. Sci. Comput. 1 (2010) 157–178
//
// we would be very happy if you could please also cite the following
// reference papers on chemistry:
//
// J. Comput. Phys. 274 (2014) 841-882
// Prog. Nucl. Sci. Tec. 2 (2011) 503-508 


#ifndef G4DNATransformElectronModel_h
#define G4DNATransformElectronModel_h 1

#include "G4VEmModel.hh"


/**
  * When an electron reaches the highest energy domain of G4DNATransformElectronModel,
  * it is then automatically converted into a solvated electron without thermalization
  * displacement (assumed to be already thermalized).
  */

class G4DNATransformElectronModel: public G4VEmModel
{
public :
    G4DNATransformElectronModel(const G4ParticleDefinition* p = nullptr,
                                const G4String& nam = "DNATransformElectronModel");
    ~G4DNATransformElectronModel() override;

    G4DNATransformElectronModel & operator=(const  G4DNATransformElectronModel &right) = delete;
    G4DNATransformElectronModel(const  G4DNATransformElectronModel&) = delete;

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

    G4double CrossSectionPerVolume(  const G4Material* material,
            const G4ParticleDefinition* p,
            G4double ekin,
            G4double emin,
            G4double emax) override;

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

    inline void SetVerbose(int);

    inline void SetEpsilonEnergy(G4double);

protected:

    G4ParticleChangeForGamma* fParticleChangeForGamma;

private:

    // Water density table
    const std::vector<G4double>* fpWaterDensity;

    G4bool fIsInitialised{false};
    G4int fVerboseLevel;
    G4double fEpsilon;

};

inline void G4DNATransformElectronModel::SetVerbose(int flag)
{
    fVerboseLevel = flag ;
}

inline void G4DNATransformElectronModel::SetEpsilonEnergy(G4double eps)
{
    fEpsilon = eps ;
}

#endif