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// HadrontherapyMatrix.hh;
// See more at: http://g4advancedexamples.lngs.infn.it/Examples/hadrontherapy

#ifndef HadrontherapyMatrix_H
#define HadrontherapyMatrix_H 1
#include <G4ParticleDefinition.hh>
#include "globals.hh"
#include <vector>
#include <fstream>

// The information: energy deposit and position in the phantom
// is stored in a matrix

// type struct useful to store nucludes data
struct ion 
 { 
     G4bool isPrimary;   // true if particle is primary
     G4int PDGencoding;  // Particle data group id for the particle
     //G4String extName; //  AZ[excitation energy]: like He3[1277.4], He4[0.0], Li7[231.4], ...
     G4String name;   	 // simple name without excitation energy: He3, He4, Li7, ...
     G4int len; 	 // name length
     G4int Z; 		 // atomic number
     G4int A; 		 // mass number
     G4double *dose; 	 // pointer to dose matrix
     unsigned int    *fluence;  // pointer to fluence matrix
     //friend bool operator<(const ion& a, const ion& b) {return (a.Z == b.Z) ? b.A < a.A : b.Z < a.Z ;}
     G4bool operator<(const ion& a) const{return (this->Z == a.Z) ? this-> A < a.A : this->Z < a.Z ;}
 };

class HadrontherapyMatrix 
{
private:
  HadrontherapyMatrix(G4int numberOfVoxelAlongX, 
		      G4int numberOfVoxelAlongY, 
		      G4int numberOfVoxelAlongZ,
		      G4double massOfVoxel); //< this is supposed to be a singleton


public:

  ~HadrontherapyMatrix();
  // Get object instance only
  static HadrontherapyMatrix* GetInstance();
  // Make & Get instance
  static HadrontherapyMatrix* GetInstance(G4int nX, G4int nY, G4int nZ, G4double mass);

  static G4bool secondaries;
  // Full list of generated nuclides
  void PrintNuclides(); 
  // Hit array marker (useful to avoid multiple counts of fluence)
  void ClearHitTrack();
  G4int* GetHitTrack(G4int i, G4int j, G4int k);

  // All the elements of the matrix are initialised to zero
  void Initialize(); 
  void Clear();
  // Fill DOSE/fluence matrix for particle: 
  // if fluence parameter is true then fluence at voxel (i, j, k) is increased 
  // else energyDeposit fill the dose matrix for voxel (i,j,k) 
  G4bool Fill(G4int, G4ParticleDefinition* particleDef, G4int i, G4int j, G4int k, G4double energyDeposit, G4bool fluence=false); 

  // Fill TOTAL DOSE matrix for primary particles only 
  void Fill(G4int i, G4int j, G4int k, G4double energyDeposit);
  // The matrix is filled with the energy deposit 
  // in the element corresponding to the voxel of the phantom where
  // the energy deposit was registered
  
  // Store the information of the matrix in a ntuple and in 
  // a 1D Histogram
  void TotalEnergyDeposit();
   
  // Store single matrix data to filename 
  void StoreMatrix(G4String file, void* data,size_t psize);
  // Store all fluence data to filenames
  void StoreFluenceData();
  // Store all dose data to filenames
  void StoreDoseData();

  // Store all data (except the total dose) to ONE filename
  void StoreDoseFluenceAscii();

#ifdef G4ANALYSIS_USE_ROOT
  void StoreDoseFluenceRoot();
#endif

  inline G4int Index(G4int i, G4int j, G4int k) { return (i * numberOfVoxelAlongY + j) * numberOfVoxelAlongZ + k; } 
  // Get a unique index from  a three dimensional one 

  G4double * GetMatrix(){return matrix;}

  G4int GetNvoxel(){return numberOfVoxelAlongX*numberOfVoxelAlongY*numberOfVoxelAlongZ;}
  // Total number of voxels read only access  
  G4int GetNumberOfVoxelAlongX(){return numberOfVoxelAlongX;}
  G4int GetNumberOfVoxelAlongY(){return numberOfVoxelAlongY;}
  G4int GetNumberOfVoxelAlongZ(){return numberOfVoxelAlongZ;}
private:

  static HadrontherapyMatrix* instance;
  G4int numberOfVoxelAlongX;
  G4int numberOfVoxelAlongY;
  G4int numberOfVoxelAlongZ;
  G4double massOfVoxel;

  G4double* matrix;
  G4int* hitTrack;
  G4String filename;
  std::ofstream ofs;

  // Dose&fluence data store 
  std::vector <ion> ionStore;
  // want secondaries?
  G4double doseUnit;
};
#endif