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/// \file electromagnetic/TestEm10/src/StackingAction.cc
/// \brief Implementation of the StackingAction class
//
// $Id: StackingAction.cc 88674 2015-03-05 08:29:46Z gcosmo $
//
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#include "StackingAction.hh"
#include "Analysis.hh"

#include "G4Track.hh"
#include "G4Gamma.hh"
#include "G4Electron.hh"
#include "G4EmProcessSubType.hh"
#include "G4VProcess.hh"

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StackingAction::StackingAction()
 : G4UserStackingAction()
{}

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StackingAction::~StackingAction()
{}

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G4ClassificationOfNewTrack
StackingAction::ClassifyNewTrack(const G4Track* track)
{
  // do nothing if primary particle
  if (track->GetParentID() == 0) { return fUrgent; }

  //count secondary particles

  G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
  //
  //energy spectrum of secondaries
  //
  G4double energy = track->GetKineticEnergy();

  // Gamma 
  if (track->GetDefinition() == G4Gamma::Gamma()) {
    // XTR gamma
    // G4int processSubType 
    //   = track->GetCreatorProcess()->GetProcessSubType();
    // if ( processSubType == fTransitionRadiation) {
    G4String creatorProcessName = track->GetCreatorProcess()->GetProcessName();
    if (creatorProcessName.find("XTRadiator") != std::string::npos) {
      analysisManager->FillH1(2, energy);
    }

    // all gamma
    analysisManager->FillH1(3, energy);
  }

  // e-
  if (track->GetDefinition() == G4Electron::Electron()) {
    analysisManager->FillH1(4, energy);
  }
    
  return fUrgent;
}

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