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

// This example is provided by the Geant4-DNA collaboration
// chem6 example is derived from chem4 and chem5 examples
//
// Any report or published results obtained using the Geant4-DNA software
// shall cite the following Geant4-DNA collaboration publication:
// J. Appl. Phys. 125 (2019) 104301
// Med. Phys. 45 (2018) e722-e739
// J. Comput. Phys. 274 (2014) 841-882
// 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
//
// Authors: W. G. Shin and S. Incerti (CENBG, France)

#include "Run.hh"

#include "RunAction.hh"
#include "ScoreSpecies.hh"

#include "G4Event.hh"
#include "G4HCofThisEvent.hh"
#include "G4RunManager.hh"
#include "G4SDManager.hh"
#include "G4THitsMap.hh"
#include "G4VSensitiveDetector.hh"

#include <map>
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.....

Run::Run() : G4Run() {
  const auto mfdet = dynamic_cast<G4MultiFunctionalDetector *>(
    G4SDManager::GetSDMpointer()->FindSensitiveDetector("mfDetector"));
  const G4int CollectionIDspecies =
      G4SDManager::GetSDMpointer()->GetCollectionID("mfDetector/Species");
  const G4int CollectionIDLET =
      G4SDManager::GetSDMpointer()->GetCollectionID("mfDetector/LET");

  fTotalLET = new G4THitsMap<G4double>("mfDetector", "LET");
  fScorerRun = mfdet->GetPrimitive(CollectionIDspecies);
  fLETScorerRun = mfdet->GetPrimitive(CollectionIDLET);
}

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

void Run::RecordEvent(const G4Event *event) {
  if (event->IsAborted()) { return; }

  const G4int CollectionID =
      G4SDManager::GetSDMpointer()->GetCollectionID("mfDetector/Species");

  const G4int CollectionIDLET =
      G4SDManager::GetSDMpointer()->GetCollectionID("mfDetector/LET");

  // Hits collections
  //
  G4HCofThisEvent *HCE = event->GetHCofThisEvent();
  if (!HCE) { return; }

  const auto evtMap = static_cast<G4THitsMap<G4double> *>(HCE->GetHC(CollectionID));

  const auto evtLET = static_cast<G4THitsMap<G4double> *>(HCE->GetHC(CollectionIDLET));

  const G4int nOfMap = evtLET->entries();

  const G4int nOftotal = fTotalLET->entries();

  for (G4int i = 0; i < nOfMap; i++) {
    G4double *LET = (*evtLET)[i];
    if (!LET) { continue; }
    fTotalLET->add(nOftotal + i, *LET);
  }

  for (auto itr = evtMap->GetMap()->begin();
       itr != evtMap->GetMap()->end(); ++itr) {
    const G4double edep = *(itr->second);
    fSumEne += edep;
  }

  G4Run::RecordEvent(event);
}

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

void Run::Merge(const G4Run *aRun) {
  if (aRun == this) {
    return;
  }

  const auto localRun = static_cast<const Run *>(aRun);
  fSumEne += localRun->fSumEne;

  const G4int nOfMaster = fTotalLET->entries();
  const G4int nOfLocal = localRun->fTotalLET->entries();
  for (G4int i = 0; i < nOfLocal; i++) {
    G4double *LET = (*localRun->fTotalLET)[i];
    if (!LET) continue;
    fTotalLET->add(nOfMaster + i, *LET);
  }

  const auto masterScorer = dynamic_cast<ScoreSpecies *>(this->fScorerRun);

  const auto localScorer = dynamic_cast<ScoreSpecies *>(localRun->fScorerRun);

  masterScorer->AbsorbResultsFromWorkerScorer(localScorer);
  G4Run::Merge(aRun);
}

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