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/// \file PrimaryGeneratorAction.hh
/// \brief Header file for Primary Generator for Molecular DNA simulation

#ifndef MOLECULAR_PRIMARY_GENERATORACTION_HH
#define MOLECULAR_PRIMARY_GENERATORACTION_HH

#include "PrimaryGeneratorMessenger.hh"

#include "G4VUserPrimaryGeneratorAction.hh"
#include "globals.hh"

class G4GeneralParticleSource;
class PrimaryGeneratorSourceGRASCSV;
class PrimaryGeneratorMessenger;
class G4ParticleGun;
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

class PrimaryGeneratorAction : public G4VUserPrimaryGeneratorAction
{
  public:
    PrimaryGeneratorAction();

    ~PrimaryGeneratorAction() override;

    void GeneratePrimaries(G4Event* anEvent) override;

    // Generate events from Phase Space file
    void SetInputFileName(const G4String& filename) { fMyInputFileName = filename; }

  private:
    G4GeneralParticleSource* fpGPS = nullptr;
    G4ParticleGun* fpParticleGun = nullptr;
    // parameters for input from file
    G4String fMyInputFileName;
    static PrimaryGeneratorSourceGRASCSV* fPrimarySource;
    G4bool fFirstEvent;

    // class messenger
    PrimaryGeneratorMessenger* fGunMessenger = nullptr;
};

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

#endif  // MOLECULAR_PRIMARY_GENERATORACTION_HH