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// $Id: G4DNABornIonisationModel.hh,v 1.3 2009/06/26 10:15:19 mantero Exp $
// GEANT4 tag $Name: geant4-09-03 $
//

#ifndef G4DNABornIonisationModel_h
#define G4DNABornIonisationModel_h 1

#include "G4VEmModel.hh"
#include "G4ParticleChangeForGamma.hh"
#include "G4ProductionCutsTable.hh"

#include "G4DNACrossSectionDataSet.hh"
#include "G4Electron.hh"
#include "G4Proton.hh"
//#include "G4DNAGenericMoleculeManager.hh"
#include "G4DNAGenericIonsManager.hh"

#include "G4LogLogInterpolation.hh"

#include "G4WaterIonisationStructure.hh"

class G4DNABornIonisationModel : public G4VEmModel
{

public:

  G4DNABornIonisationModel(const G4ParticleDefinition* p = 0, 
		           const G4String& nam = "DNABornIonisationModel");

  virtual ~G4DNABornIonisationModel();

  virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&);

  virtual G4double CrossSectionPerVolume(  const G4Material* material,
					   const G4ParticleDefinition* p,
					   G4double ekin,
					   G4double emin,
					   G4double emax);

  virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
				 const G4MaterialCutsCouple*,
				 const G4DynamicParticle*,
				 G4double tmin,
				 G4double maxEnergy);

protected:

  G4ParticleChangeForGamma* fParticleChangeForGamma;

private:

  std::map<G4String,G4double,std::less<G4String> > lowEnergyLimit;
  std::map<G4String,G4double,std::less<G4String> > highEnergyLimit;

  G4bool isInitialised;
  G4int verboseLevel;
  
  // Cross section

  typedef std::map<G4String,G4String,std::less<G4String> > MapFile;
  MapFile tableFile;

  typedef std::map<G4String,G4DNACrossSectionDataSet*,std::less<G4String> > MapData;
  MapData tableData;
  
  // Final state
  
  G4WaterIonisationStructure waterStructure;

  G4double RandomizeEjectedElectronEnergy(G4ParticleDefinition * aParticleDefinition, G4double incomingParticleEnergy, G4int shell) ;

  void RandomizeEjectedElectronDirection(G4ParticleDefinition * aParticleDefinition, G4double incomingParticleEnergy, G4double
                                           outgoingParticleEnergy, G4double & cosTheta, G4double & phi );
   
  double DifferentialCrossSection(G4ParticleDefinition * aParticleDefinition, G4double k, G4double energyTransfer, G4int shell);

  G4double LogLogInterpolate(G4double e1, G4double e2, G4double e, G4double xs1, G4double xs2);
   
  G4double QuadInterpolator( G4double e11, 
			     G4double e12, 
			     G4double e21, 
			     G4double e22, 
			     G4double x11,
			     G4double x12, 
			     G4double x21, 
			     G4double x22, 
			     G4double t1, 
			     G4double t2, 
			     G4double t, 
			     G4double e);

  typedef std::map<double, std::map<double, double> > TriDimensionMap;
  TriDimensionMap eDiffCrossSectionData[6];
  TriDimensionMap pDiffCrossSectionData[6];
  std::vector<double> eTdummyVec;
  std::vector<double> pTdummyVec;

  typedef std::map<double, std::vector<double> > VecMap;
  VecMap eVecm;
  VecMap pVecm;
  
  // Partial cross section
  
  G4int RandomSelect(G4double energy,const G4String& particle );

  // Test water material 
   
  G4bool flagMaterialIsWater;
  G4double densityWater;
   
  //
   
  G4DNABornIonisationModel & operator=(const  G4DNABornIonisationModel &right);
  G4DNABornIonisationModel(const  G4DNABornIonisationModel&);

};

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#endif