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// $Id: G4PSPopulation.cc,v 1.3 2010/07/23 04:35:38 taso Exp $
// GEANT4 tag $Name:  $
//
// G4PSPopulation
#include "G4PSPopulation.hh"


///////////////////////////////////////////////////////////////////////////////
// (Description)
//   This is a primitive scorer class for scoring population in a cell.
//
// Created: 2007-02-02  Tsukasa ASO, Akinori Kimura.
// 2010-07-22   Introduce Unit specification.
//
///////////////////////////////////////////////////////////////////////////////

G4PSPopulation::G4PSPopulation(G4String name, G4int depth)
  :G4VPrimitiveScorer(name,depth),HCID(-1),weighted(false)
{
    SetUnit("");
}

G4PSPopulation::~G4PSPopulation()
{;}

G4bool G4PSPopulation::ProcessHits(G4Step* aStep,G4TouchableHistory*)
{

  G4int index = GetIndex(aStep);
  G4TrackLogger& tlog = fCellTrackLogger[index];
  if (tlog.FirstEnterance(aStep->GetTrack()->GetTrackID())) {
      G4double val = 1.0;
      if(weighted) val *= aStep->GetPreStepPoint()->GetWeight();
      EvtMap->add(index,val);  
  }

  return TRUE;
}

void G4PSPopulation::Initialize(G4HCofThisEvent* HCE)
{
  EvtMap = new G4THitsMap<G4double>(detector->GetName(),GetName());
  if(HCID < 0) {HCID = GetCollectionID(0);}
  HCE->AddHitsCollection(HCID, (G4VHitsCollection*)EvtMap);
}

void G4PSPopulation::EndOfEvent(G4HCofThisEvent*)
{
  fCellTrackLogger.clear();
}

void G4PSPopulation::clear(){
  EvtMap->clear();
  fCellTrackLogger.clear();
}

void G4PSPopulation::DrawAll()
{;}

void G4PSPopulation::PrintAll()
{
  G4cout << " MultiFunctionalDet  " << detector->GetName() << G4endl;
  G4cout << " PrimitiveScorer " << GetName() << G4endl;
  G4cout << " Number of entries " << EvtMap->entries() << G4endl;
  std::map<G4int,G4double*>::iterator itr = EvtMap->GetMap()->begin();
  for(; itr != EvtMap->GetMap()->end(); itr++) {
    G4cout << "  copy no.: " << itr->first
	   << "  population: " << *(itr->second)/GetUnitValue()
	   << " [tracks]"
	   << G4endl;
  }
}

void G4PSPopulation::SetUnit(const G4String& unit)
{
  if (unit == "" ){
    unitName = unit;
    unitValue = 1.0;
  }else{
      G4String msg = "Invalid unit ["+unit+"] (Current  unit is [" +GetUnit()+"] )";
    G4Exception(GetName(),"DetScorer0000",JustWarning,msg);
  }

}