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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 EtaN->LK/SK
      virtual G4double etaNToLK(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double etaNToSK(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 OmegaN->LK/SK
      virtual G4double omegaNToLK(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double omegaNToSK(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 elastic scattering for Nucleon-Strange Particles cross sections
      virtual G4double NYelastic(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NKbelastic(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NKelastic(Particle const * const p1, Particle const * const p2) = 0;
      
      /// \brief Nucleon-Nucleon to Stange particles cross sections
      virtual G4double NNToNLK(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NNToNSK(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NNToNLKpi(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NNToNSKpi(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NNToNLK2pi(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NNToNSK2pi(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NNToNNKKb(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NNToMissingStrangeness(Particle const * const p1, Particle const * const p2) = 0;
      
      /// \brief Nucleon-Delta to Stange particles cross sections
      virtual G4double NDeltaToNLK(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NDeltaToNSK(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NDeltaToDeltaLK(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NDeltaToDeltaSK(Particle const * const p1, Particle const * const p2) = 0;
      
      virtual G4double NDeltaToNNKKb(Particle const * const p1, Particle const * const p2) = 0;
         
      /// \brief Nucleon-Pion to Stange particles cross sections
      virtual G4double NpiToLK(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NpiToSK(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double p_pimToSzKz(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double p_pimToSmKp(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double p_pizToSzKp(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NpiToLKpi(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NpiToSKpi(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NpiToLK2pi(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NpiToSK2pi(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NpiToNKKb(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NpiToMissingStrangeness(Particle const * const p1, Particle const * const p2) = 0;
      
      /// \brief Nucleon-Hyperon cross sections
      virtual G4double NLToNS(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NSToNL(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NSToNS(Particle const * const p1, Particle const * const p2) = 0;
         
      /// \brief Nucleon-Kaon inelastic cross sections
      virtual G4double NKToNK(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NKToNKpi(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NKToNK2pi(Particle const * const p1, Particle const * const p2) = 0;
      
      /// \brief Nucleon-antiKaon inelastic cross sections
      virtual G4double NKbToNKb(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NKbToSpi(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NKbToLpi(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NKbToS2pi(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NKbToL2pi(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NKbToNKbpi(Particle const * const p1, Particle const * const p2) = 0;
      virtual G4double NKbToNKb2pi(Particle const * const p1, Particle const * const p2) = 0;
      
      /// \brief NNbar Particles cross sections
      /// \brief Nucleon-AntiNucleon to Baryon-AntiBaryon cross sections
      virtual G4double NNbarElastic(Particle const* const p1, Particle const* const p2) = 0;
      virtual G4double NNbarCEX(Particle const* const p1, Particle const* const p2) = 0;
      
      virtual G4double NNbarToLLbar(Particle const * const p1, Particle const * const p2) = 0;
      
      /// \brief Nucleon-AntiNucleon to Nucleon-AntiNucleon + pions cross sections
      virtual G4double NNbarToNNbarpi(Particle const* const p1, Particle const* const p2) = 0;
      virtual G4double NNbarToNNbar2pi(Particle const* const p1, Particle const* const p2) = 0;
      virtual G4double NNbarToNNbar3pi(Particle const* const p1, Particle const* const p2) = 0;
     
      /// \brief Nucleon-AntiNucleon total annihilation cross sections
      virtual G4double NNbarToAnnihilation(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
