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//
// INCL++ intra-nuclear cascade model
// Alain Boudard, CEA-Saclay, France
// Joseph Cugnon, University of Liege, Belgium
// Jean-Christophe David, CEA-Saclay, France
// Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland
// Sylvie Leray, CEA-Saclay, France
// Davide Mancusi, CEA-Saclay, France
//
#define INCLXX_IN_GEANT4_MODE 1

#include "globals.hh"

/** \file G4INCLICrossSections.hh
 * \brief Abstract interface for the cross-section classes
 *
 * \date 25nd October 2013
 * \author Davide Mancusi
 */

#ifndef G4INCLICROSSSECTIONS_HH
#define G4INCLICROSSSECTIONS_HH

#include "G4INCLParticle.hh"

namespace G4INCL {
  /// \brief Abstract interface for the cross-section classes
  class ICrossSections {
    public:

      ICrossSections() {}
      virtual ~ICrossSections() {}

      /// \brief Elastic particle-particle cross section
      virtual G4double elastic(Particle const * const p1, Particle const * const p2) = 0;

      /// \brief Total (elastic+inelastic) particle-particle cross section
      virtual G4double total(Particle const * const p1, Particle const * const p2) = 0;

      /// \brief Cross section for NDelta->NN
      virtual G4double NDeltaToNN(Particle const * const p1, Particle const * const p2) = 0;

      /// \brief Cross section for NN->NDelta
      virtual G4double NNToNDelta(Particle const * const p1, Particle const * const p2) = 0;

      /// \brief Cross section for NN->xpiN
      virtual G4double NNToxPiNN(const G4int xpi, Particle const * const p1, Particle const * const p2) = 0;

      /// \brief Cross section for piN->NDelta
      virtual G4double piNToDelta(Particle const * const p1, Particle const * const p2) = 0;

      /// \brief Cross section for piN->piNpi
      virtual G4double piNToxPiN(const G4int xpi, Particle const * const p1, Particle const * const p2) = 0;
	  
      /// \brief Cross section for PiN->EtaN
      virtual G4double piNToEtaN(Particle const * const p1, Particle const * const p2) = 0;
	  
      /// \brief Cross section for PiN->OmegaN
      virtual G4double piNToOmegaN(Particle const * const p1, Particle const * const p2) = 0;
	  
      /// \brief Cross section for PiN->EtaPrimeN
      virtual G4double piNToEtaPrimeN(Particle const * const p1, Particle const * const p2) = 0;
	  
			   /// \brief Cross section for EtaN->PiN
			   virtual G4double etaNToPiN(Particle const * const p1, Particle const * const p2) = 0;
	  
			   /// \brief Cross section for EtaN->PiPiN
			   virtual G4double etaNToPiPiN(Particle const * const p1, Particle const * const p2) = 0;
	  
      /// \brief Cross section for OmegaN->PiN
      virtual G4double omegaNToPiN(Particle const * const p1, Particle const * const p2) = 0;
   
      /// \brief Cross section for OmegaN->PiPiN
      virtual G4double omegaNToPiPiN(Particle const * const p1, Particle const * const p2) = 0;
   
      /// \brief Cross section for EtaPrimeN->PiN
      virtual G4double etaPrimeNToPiN(Particle const * const p1, Particle const * const p2) = 0;
	  
		   	/// \brief Cross section for NN->NNEta (inclusive)
		   	virtual G4double NNToNNEta(Particle const * const p1, Particle const * const p2) = 0;
	  
		   	/// \brief Cross section for NN->NNEta (exclusive)
		   	virtual G4double NNToNNEtaExclu(Particle const * const p1, Particle const * const p2) = 0;
			
		   	/// \brief Cross section for NN->NNEtaxPi
			   virtual G4double NNToNNEtaxPi(const G4int xpi, Particle const * const p1, Particle const * const p2) = 0;
	  
		   	/// \brief Cross section for N-Delta-Eta production - NNEta Channel
			   virtual G4double NNToNDeltaEta(Particle const * const p1, Particle const * const p2) = 0;
	  
      /// \brief Cross section for NN->NNEta (inclusive)
      virtual G4double NNToNNOmega(Particle const * const p1, Particle const * const p2) = 0;
	  
      /// \brief Cross section for NN->NNEta (exclusive)
      virtual G4double NNToNNOmegaExclu(Particle const * const p1, Particle const * const p2) = 0;
			
      /// \brief Cross section for NN->NNEtaxPi
      virtual G4double NNToNNOmegaxPi(const G4int xpi, Particle const * const p1, Particle const * const p2) = 0;
	  
      /// \brief Cross section for N-Delta-Eta production - NNEta Channel
      virtual G4double NNToNDeltaOmega(Particle const * const p1, Particle const * const p2) = 0;
   
      /** \brief Calculate the slope of the NN DDXS.
       *
       * \param energyCM energy in the CM frame, in MeV
       * \param iso total isospin of the system
       *
       * \return the slope of the angular distribution
       */
      virtual G4double calculateNNAngularSlope(G4double energyCM, G4int iso) = 0;

  };
}

#endif
