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// $Id: G4NeutronHPChannel.hh,v 1.15 2008/05/20 21:24:28 tkoi Exp $
// GEANT4 tag $Name: geant4-09-02-ref-02 $
//
 // Hadronic Process: Very Low Energy Neutron X-Sections
 // original by H.P. Wellisch, TRIUMF, 14-Feb-97
 // Builds and has the Cross-section data for one element and channel.
//
// Bug fixes and workarounds in the destructor, F.W.Jones 06-Jul-1999
// 070612 Fix memory leaking by T. Koi
//
// 080520 Delete unnecessary dependencies by T. Koi
 
#ifndef G4NeutronHPChannel_h
#define G4NeutronHPChannel_h 1
#include "globals.hh"
#include "G4NeutronHPIsoData.hh"
#include "G4NeutronHPVector.hh"
#include "G4Material.hh"
#include "G4HadProjectile.hh"
//#include "G4NeutronInelasticProcess.hh"
//#include "G4HadronFissionProcess.hh"
//#include "G4HadronElasticProcess.hh"
//#include "G4HadronCaptureProcess.hh"
#include "G4StableIsotopes.hh"
#include "G4NeutronHPCaptureFS.hh"
#include "G4NeutronHPFinalState.hh"
#include "G4Element.hh"

class G4NeutronHPChannel
{
public:

  G4NeutronHPChannel()
  {
    theChannelData = new G4NeutronHPVector; 
    theBuffer = 0;
    theIsotopeWiseData = 0;
    theFinalStates = 0;
    active = 0;
    registerCount = -1;
  }
  
  ~G4NeutronHPChannel()
  {
    delete theChannelData; 
    // Following statement disabled to avoid SEGV
    // theBuffer is also deleted as "theChannelData" in
    // ~G4NeutronHPIsoData.  FWJ 06-Jul-1999
    //if(theBuffer != 0) delete theBuffer; 
    if(theIsotopeWiseData != 0) delete [] theIsotopeWiseData;
    // Deletion of FinalStates disabled to avoid endless looping
    // in the destructor heirarchy.  FWJ 06-Jul-1999
    //if(theFinalStates != 0)
    //{
    //  for(i=0; i<niso; i++)
    //  {
    //    delete theFinalStates[i];
    //  }
    //  delete [] theFinalStates;
    //}
    // FWJ experiment
    //if(active!=0) delete [] active;
// T.K. 
   if ( theFinalStates != 0 )
   {
      for ( G4int i = 0 ; i < niso ; i++ )
      {
         delete theFinalStates[i];
      }
      delete [] theFinalStates;
   }
   if ( active != 0 ) delete [] active;
    
  }
  
  G4double GetXsec(G4double energy);
  
  G4double GetWeightedXsec(G4double energy, G4int isoNumber);
  
  G4double GetFSCrossSection(G4double energy, G4int isoNumber);
  
  inline G4bool IsActive(G4int isoNumber) { return active[isoNumber]; }
  
  inline G4bool HasFSData(G4int isoNumber) { return theFinalStates[isoNumber]->HasFSData(); }
  
  inline G4bool HasAnyData(G4int isoNumber) { return theFinalStates[isoNumber]->HasAnyData(); }
  
  G4bool Register(G4NeutronHPFinalState *theFS);
  
  void Init(G4Element * theElement, const G4String dirName); 

  void Init(G4Element * theElement, const G4String dirName, const G4String fsType); 
  
  void UpdateData(G4int A, G4int Z, G4int index, G4double abundance);
  
  void Harmonise(G4NeutronHPVector *& theStore, G4NeutronHPVector * theNew);

  G4HadFinalState * ApplyYourself(const G4HadProjectile & theTrack, G4int isoNumber=-1);
    
  inline G4int GetNiso() {return niso;}
  
  inline G4double GetN(G4int i) {return theFinalStates[i]->GetN();}
  inline G4double GetZ(G4int i) {return theFinalStates[i]->GetZ();}
  
  inline G4bool HasDataInAnyFinalState()
  {
    G4bool result = false;
    G4int i;
    for(i=0; i<niso; i++)
    {
      if(theFinalStates[i]->HasAnyData()) result = true;
    }
    return result;
  }
  
private:
  G4NeutronHPVector * theChannelData;  // total (element) cross-section for this channel
  G4NeutronHPVector * theBuffer;
  
  G4NeutronHPIsoData * theIsotopeWiseData; // these are the isotope-wise cross-sections for each final state.
  G4NeutronHPFinalState ** theFinalStates; // also these are isotope-wise pionters, parallel to the above.
  G4bool * active;
  G4int niso;

  G4StableIsotopes theStableOnes;
  
  G4String theDir;
  G4String theFSType;
  G4Element * theElement;
  
  G4int registerCount;
    
};

#endif
