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#ifndef PAR04PARALLELFASTSENSITIVEDETECTOR_HH
#define PAR04PARALLELFASTSENSITIVEDETECTOR_HH

#include <CLHEP/Units/SystemOfUnits.h>     // for m, pi
#include <G4String.hh>                     // for G4String
#include <G4Types.hh>                      // for G4bool, G4int
#include "G4SystemOfUnits.hh"              // for m
#include "G4ThreeVector.hh"                // for G4ThreeVector
#include "G4VFastSimSensitiveDetector.hh"  // for G4VFastSimSensitiveDetector
#include "G4VSensitiveDetector.hh"         // for G4VSensitiveDetector
#include "Par04Hit.hh"                     // for Par04Hit (ptr only), Par04...
#include <unordered_map>
class G4FastHit;
class G4FastTrack;
class G4HCofThisEvent;
class G4Step;
class G4TouchableHistory;

/**
 * @brief Sensitive detector.
 *
 *
 */

class Par04ParallelFastSensitiveDetector
  : public G4VSensitiveDetector,
    public G4VFastSimSensitiveDetector
{
 public:
  Par04ParallelFastSensitiveDetector(G4String aName);
  Par04ParallelFastSensitiveDetector(G4String aName,
                                     G4int aNbOfLayers,
                                     G4int aNbOfSlices);
  virtual ~Par04ParallelFastSensitiveDetector();
  /// Create hit collection
  virtual void Initialize(G4HCofThisEvent* HCE) final;
  /// Process energy deposit from the full simulation.
  virtual G4bool ProcessHits(G4Step* aStep, G4TouchableHistory* aROhist) final;
  virtual G4bool ProcessHits(const G4FastHit* aHit, const G4FastTrack* aTrack,
                             G4TouchableHistory* aROhist) final;
  virtual void EndOfEvent(G4HCofThisEvent* aHC) final;

 private:
  /// Collection of hits
  Par04HitsCollection* fHitsCollection = nullptr;
  std::unordered_map<G4int, std::unique_ptr<Par04Hit>> fHitsMap;
  /// ID of collection of hits
  G4int fHitCollectionID = -1;
  /// Number of readout cells
  G4int fNbOfLayers = 1;
  G4int fNbOfSlices = 1;
};

#endif /* PAR04PARALLELSENSITIVEDETECTOR_HH */