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

#include "SteppingAction.hh"

#include "DetectorConstruction.hh"
#include "RunAction.hh"

#include "G4Step.hh"
#include "G4StepPoint.hh"
#include "Randomize.hh"

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SteppingAction::SteppingAction(DetectorConstruction* det, RunAction* RuAct)
  : G4UserSteppingAction(), fDetector(det), fRunAction(RuAct)
{}

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SteppingAction::~SteppingAction() {}

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void SteppingAction::UserSteppingAction(const G4Step* step)
{
  G4double edep = step->GetTotalEnergyDeposit();
  if (edep <= 0.) return;

  G4StepPoint* prePoint = step->GetPreStepPoint();
  G4StepPoint* postPoint = step->GetPostStepPoint();

  G4int copyNb = prePoint->GetTouchableHandle()->GetCopyNumber();
  if (copyNb > 0) {
    fRunAction->FillTallyEdep(copyNb - 1, edep);
  }

  G4double niel = step->GetNonIonizingEnergyDeposit();
  fRunAction->FillEdep(edep, niel);

  if (step->GetTrack()->GetTrackID() == 1) {
    fRunAction->AddPrimaryStep();
    /*
    G4cout << step->GetTrack()->GetMaterial()->GetName()
           << "  E1= " << step->GetPreStepPoint()->GetKineticEnergy()
           << "  E2= " << step->GetPostStepPoint()->GetKineticEnergy()
           << " Edep= " << edep
           << " Q= " << step->GetTrack()->GetDynamicParticle()->GetCharge()
           << " Qp= " << step->GetPostStepPoint()->GetCharge()
           << G4endl;
    */
  }

  // Bragg curve
  //
  G4double xmax = fDetector->GetAbsorSizeX();

  G4double x1 = prePoint->GetPosition().x() + xmax * 0.5;
  G4double x2 = postPoint->GetPosition().x() + xmax * 0.5;
  if (x1 >= 0.0 && x2 <= xmax) {
    G4double x = x1 + G4UniformRand() * (x2 - x1);
    if (step->GetTrack()->GetDefinition()->GetPDGCharge() == 0.) x = x2;
    G4AnalysisManager* analysisManager = G4AnalysisManager::Instance();
    analysisManager->FillH1(1, x, edep);
    analysisManager->FillH1(2, x, edep);
  }
}

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