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/// \file RE01CalorimeterSD.cc
/// \brief Implementation of the RE01CalorimeterSD class

#include "RE01CalorimeterSD.hh"

#include "RE01CalorimeterHit.hh"

#include "G4LogicalVolume.hh"
#include "G4ParticleDefinition.hh"
#include "G4Step.hh"
#include "G4TouchableHistory.hh"
#include "G4Track.hh"
#include "G4VPhysicalVolume.hh"
#include "G4VTouchable.hh"
#include "G4ios.hh"

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
RE01CalorimeterSD::RE01CalorimeterSD(G4String name)
  : G4VSensitiveDetector(name), fCalCollection(0), fNumberOfCellsInZ(20), fNumberOfCellsInPhi(48)
{
  // Initialize data member.
  for (G4int j = 0; j < fNumberOfCellsInZ; j++)
    for (G4int k = 0; k < fNumberOfCellsInPhi; k++) {
      fCellID[j][k] = -1;
    }
  //
  G4String HCname;
  collectionName.insert(HCname = "calCollection");
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
RE01CalorimeterSD::~RE01CalorimeterSD()
{
  ;
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
void RE01CalorimeterSD::Initialize(G4HCofThisEvent* HCE)
{
  fCalCollection = new RE01CalorimeterHitsCollection(SensitiveDetectorName, collectionName[0]);
  for (G4int j = 0; j < fNumberOfCellsInZ; j++)
    for (G4int k = 0; k < fNumberOfCellsInPhi; k++) {
      fCellID[j][k] = -1;
    }

  static G4int HCID = -1;
  if (HCID < 0) {
    HCID = GetCollectionID(0);
  }
  HCE->AddHitsCollection(HCID, fCalCollection);
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
G4bool RE01CalorimeterSD::ProcessHits(G4Step* aStep, G4TouchableHistory*)
{
  //***** RE05CalorimeterSD has been migrated to Geant4 version 10 that does not
  //***** support Readout Geometry in multi-threaded mode. Now RE05CalorimeterSD
  //***** is assigned to a dedicaed parallel world. The pointer "aStep" points to
  //***** a G4Step object for the parallel world.

  G4double edep = aStep->GetTotalEnergyDeposit();
  if (edep == 0.) return false;

  const G4VTouchable* ROhist = aStep->GetPreStepPoint()->GetTouchable();
  G4int copyIDinZ = ROhist->GetReplicaNumber();
  G4int copyIDinPhi = ROhist->GetReplicaNumber(1);

  if (fCellID[copyIDinZ][copyIDinPhi] == -1) {
    RE01CalorimeterHit* calHit =
      new RE01CalorimeterHit(ROhist->GetVolume()->GetLogicalVolume(), copyIDinZ, copyIDinPhi);
    calHit->SetEdep(edep);
    G4AffineTransform aTrans = ROhist->GetHistory()->GetTopTransform();
    aTrans.Invert();
    calHit->SetPos(aTrans.NetTranslation());
    calHit->SetRot(aTrans.NetRotation());
    calHit->SetTrackInformation(aStep->GetTrack());
    G4int icell = fCalCollection->insert(calHit);
    fCellID[copyIDinZ][copyIDinPhi] = icell - 1;
    if (verboseLevel > 0) {
      G4cout << " New Calorimeter Hit on CellID " << copyIDinZ << " " << copyIDinPhi << G4endl;
    }
  }
  else {
    (*fCalCollection)[fCellID[copyIDinZ][copyIDinPhi]]->AddEdep(edep);
    (*fCalCollection)[fCellID[copyIDinZ][copyIDinPhi]]->SetTrackInformation(aStep->GetTrack());
    if (verboseLevel > 0) {
      G4cout << " Energy added to CellID " << copyIDinZ << " " << copyIDinPhi << G4endl;
    }
  }

  return true;
}
