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// ********************************************************************
//
//  CaTS (Calorimetry and Tracking Simulation)
//
//  Authors : Hans Wenzel
//            Soon Yung Jun
//            (Fermi National Accelerator Laboratory)
//
// History
//   October 18th, 2021 : first implementation
//
// ********************************************************************
//
/// \file TrackerHit.hh
/// \brief Definition of the CaTS::TrackerHit class

#pragma once

#include "G4VHit.hh"
#include "G4THitsCollection.hh"
#include "G4Allocator.hh"
#include "G4ThreeVector.hh"

class TrackerHit : public G4VHit
{
 public:
  TrackerHit();
  ~TrackerHit() = default;
  TrackerHit(const TrackerHit&);
  const TrackerHit& operator=(const TrackerHit&);
  G4bool operator==(const TrackerHit&) const;
  inline void* operator new(size_t);
  inline void operator delete(void*);
  void Draw() final;

  inline void Print() final
  {
    G4cout << "TrackerHit  id:  " << fid << " Edep: " << fEdep
           << " X: " << fposition.getX() << " Y: " << fposition.getY()
           << " Z: " << fposition.getZ() << " time: " << ftime << G4endl;
  }

  TrackerHit(G4double edep, G4ThreeVector position, G4double time);
  inline void SetEdep(G4double Edep) { fEdep = Edep; }
  inline G4double GetEdep() { return fEdep; }
  inline void SetTime(G4double time) { ftime = time; }
  inline G4double GetTime() const { return ftime; }
  inline void SetPosition(G4ThreeVector position) { fposition = position; }
  inline G4ThreeVector GetPosition() const { return fposition; }

 private:
  G4int fid{ 0 };
  G4double fEdep{ 0 };
  G4ThreeVector fposition{ 0, 0, 0 };
  G4double ftime{ 0 };
};

using TrackerHitsCollection = G4THitsCollection<TrackerHit>;
extern G4ThreadLocal G4Allocator<TrackerHit>* TrackerHitAllocator;

inline void* TrackerHit::operator new(size_t)
{
  if(!TrackerHitAllocator)
  {
    TrackerHitAllocator = new G4Allocator<TrackerHit>;
  }
  return (void*) TrackerHitAllocator->MallocSingle();
}

inline void TrackerHit::operator delete(void* aHit)
{
  TrackerHitAllocator->FreeSingle((TrackerHit*) aHit);
}