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//
/// \file MyFileReader.cc
/// \brief Implementation of the MyFileReader class

// Derived from
//  https://twiki.cern.ch/twiki/bin/view/Geant4/QuickMigrationGuideForGeant4V10
// Courtesy of A. Dotti
//
// This example is provided by the Geant4-DNA collaboration
// Any report or published results obtained using the Geant4-DNA software
// shall cite the following Geant4-DNA collaboration publications:
// Med. Phys. 45 (2018) e722-e739
// Phys. Med. 31 (2015) 861-874
// Med. Phys. 37 (2010) 4692-4708
// Int. J. Model. Simul. Sci. Comput. 1 (2010) 157–178
//
// The Geant4-DNA web site is available at http://geant4-dna.org
//

#include "MyFileReader.hh"

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

MyFileReader::MyFileReader()
{
  //******************************************************************
  //*** Specify file name containing list of incident energies (in eV)
  //******************************************************************
  G4String fileName = "spectrum.txt";
  //

  fInputFile.open(fileName.data());
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

MyFileReader::~MyFileReader()
{
  fInputFile.close();
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

G4double MyFileReader::GetAnEvent()
{
  //*******************************************
  //*** Specify number of lines to read at once
  //*******************************************
  G4int numberOfLinesToRead = 100;
  //

  if (fEvList.size() == 0) {
    for (G4int i = 0; i < numberOfLinesToRead; i++) {
      G4double nrj;
      fInputFile >> nrj;
      fEvList.push_back(nrj);
    }
  }

  // Get first element from list
  G4double ev = fEvList.front();

  // Remove this element from list
  fEvList.pop_front();

  return ev;
}
