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// Author: Elena Guardincerri (Elena.Guardincerri@ge.infn.it)
//
// History:
// -----------
//  16 Sept 2001 First committed to cvs
//
// -------------------------------------------------------------------

// Class description:
// Low Energy Electromagnetic Physics
// Fluorescence data set: shell identifiers, transition probabilities, 
// transition energies

// -------------------------------------------------------------------

#ifndef G4FLUODATA_HH
#define G4FLUODATA_HH 1

#include "globals.hh"
#include <vector>
#include <map>

class G4FluoTransition;
class G4DataVector;

class G4FluoData
{
public:

  explicit G4FluoData(const G4String& dir);

  ~G4FluoData();

  /// The method returns the number of shells in wich a 
  /// vacancy can be filled by a radiative transition
  std::size_t NumberOfVacancies() const;

  /// Given the index of the vacancy returns its identity
  G4int VacancyId(G4int vacancyIndex) const;
  
  /// Given the index of a vacancy returns the number of
  /// shells starting from wich an electrons can fill the vacancy
  std::size_t NumberOfTransitions(G4int vacancyIndex) const;

  /// Given the indexes of the starting and final shells for the 
  /// transition, returns the identity of the starting one
  G4int StartShellId(G4int initIndex, G4int vacancyIndex) const;

  /// Given the indexes of the starting and final shells for the 
  /// transition, returns the transition energy
  G4double StartShellEnergy(G4int initIndex, G4int vacancyIndex) const;

  /// Given the indexes of the starting and final shells for the 
  /// transition, returns the probability of this transition
  G4double StartShellProb(G4int initIndex, G4int vacancyIndex) const;

  void LoadData(G4int Z);

  void PrintData();

  G4FluoData& operator=(const G4FluoData& right) = delete;
  G4FluoData(const G4FluoData&) = delete;

private:
  std::map<G4int,G4DataVector*,std::less<G4int> > idMap;
  std::map<G4int,G4DataVector*,std::less<G4int> > energyMap;
  std::map<G4int,G4DataVector*,std::less<G4int> > probabilityMap;
  std::vector<G4int> nInitShells; 
  std::map<G4int,std::vector<G4FluoTransition*>,std::less<G4int> > fluoTransitionTable;  
  G4String fluoDirectory;  

  G4int numberOfVacancies = 0;

};

#endif