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//
// Class Description
// This is the class to which cross section data sets may be registered. 
// An instance of it is contained in each hadronic process, allowing
// the use of the AddDataSet() method to tailor the cross sections to
// your application.
// Class Description - End

#ifndef G4CrossSectionDataStore_h
#define G4CrossSectionDataStore_h 1

#include "G4ParticleDefinition.hh"
#include "G4DynamicParticle.hh"
#include "G4Isotope.hh"
#include "G4Element.hh"
#include "G4Material.hh"
#include "G4VCrossSectionDataSet.hh"


class G4CrossSectionDataStore
{
public:

   G4CrossSectionDataStore() :
      NDataSetList(0), verboseLevel(0)
   {}

   ~G4CrossSectionDataStore()
   {}

   G4double GetCrossSection(const G4DynamicParticle*, 
                            const G4Element*, G4double aTemperature);

   G4double GetCrossSection(const G4DynamicParticle*, 
                            const G4Isotope*, G4double aTemperature);

   G4double GetCrossSection(const G4DynamicParticle*, 
                            G4double Z, G4double A, G4double aTemperature);

   // to replace GetMicroscopicCrossSection
   G4double GetCrossSection(const G4DynamicParticle*, const G4Material*);

   std::pair<G4double/*Z*/, G4double/*A*/> 
   SelectRandomIsotope(const G4DynamicParticle*, const G4Material*);

   void AddDataSet(G4VCrossSectionDataSet*);

   void BuildPhysicsTable(const G4ParticleDefinition&);

   void DumpPhysicsTable(const G4ParticleDefinition&);

   void SetVerboseLevel(G4int value)
   {
      verboseLevel = value;
   }

   G4int GetVerboseLevel()
   {
      return verboseLevel;
   }

private:

   enum { NDataSetMax = 100 };
   G4VCrossSectionDataSet* DataSetList[NDataSetMax];
   G4int NDataSetList;
   G4int verboseLevel;
};

#endif