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//
// P. Arce, June-2014 Conversion neutron_hp to particle_hp
//
#ifndef G4ParticleHPFissionBaseFS_h
#define G4ParticleHPFissionBaseFS_h 1

#include "globals.hh"
#include "G4ReactionProduct.hh"
#include "G4DynamicParticleVector.hh"
#include "G4ParticleHPFinalState.hh"
#include "G4ParticleHPNames.hh"
#include "G4ParticleHPVector.hh"
#include "G4ParticleHPEnergyDistribution.hh"
#include "G4ParticleHPAngular.hh"
#include "G4Cache.hh"

class G4ParticleHPFissionBaseFS : public G4ParticleHPFinalState
{
  struct toBeCached
  {
    const G4ReactionProduct* theNeutronRP;
    const G4ReactionProduct* theTarget;
    toBeCached() : theNeutronRP(0),theTarget(0) {}
  };

public:
  
  G4ParticleHPFissionBaseFS()
  { 
    hasXsec = true; 
    theXsection = new G4ParticleHPVector;
  }

  virtual ~G4ParticleHPFissionBaseFS()
  {
    delete theXsection;
  }

  void Init (G4double A, G4double Z, G4int M,
             G4String & dirName, G4String & bit, G4ParticleDefinition*);

  G4DynamicParticleVector * ApplyYourself(G4int Prompt);

  virtual G4double GetXsec(G4double anEnergy)
  {
    return std::max(0., theXsection->GetY(anEnergy));
  }

  virtual G4ParticleHPVector * GetXsec()
  {
    return theXsection;
  }

  inline void SetNeutronRP(const G4ReactionProduct & aNeutron)
  { 
    fCache.Get().theNeutronRP = &aNeutron;
    theAngularDistribution.SetProjectileRP(aNeutron);
  }
  
  inline void SetTarget(const G4ReactionProduct & aTarget)
  { 
    fCache.Get().theTarget = &aTarget; 
    theAngularDistribution.SetTarget(aTarget);
  }
  
private:
  
  G4HadFinalState * ApplyYourself(const G4HadProjectile & ) {return 0;}
  
  G4ParticleHPVector * theXsection;
  G4ParticleHPEnergyDistribution theEnergyDistribution;
  G4ParticleHPAngular theAngularDistribution;
  
  G4Cache<toBeCached> fCache;
};

#endif
