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

#pragma once

#include "lArTPCHit.hh"
#include "G4VSensitiveDetector.hh"
#include "G4ScintillationTrackInformation.hh"
#include <G4MaterialPropertyVector.hh>
#include <G4String.hh>
#include <G4Types.hh>
class G4Material;
class G4PhysicsTable;
class G4TouchableHistory;
class G4Step;
class G4HCofThisEvent;
class G4MaterialPropertiesTable;
class G4PhysicsOrderedFreeVector;

class lArTPCSD : public G4VSensitiveDetector
{
 public:
  lArTPCSD(G4String name);
  virtual ~lArTPCSD() = default;
  void Initialize(G4HCofThisEvent* hitCollection) final;
  G4bool ProcessHits(G4Step* step, G4TouchableHistory* history) final;
  void EndOfEvent(G4HCofThisEvent* hitCollection) final;

 private:
  G4int materialIndex;
  const G4Material* aMaterial;
  G4MaterialPropertiesTable* aMaterialPropertiesTable;
  //
  // properties related to Scintillation
  //
  G4MaterialPropertyVector* Fast_Intensity{ nullptr };
  G4MaterialPropertyVector* Slow_Intensity{ nullptr };
  G4double YieldRatio{ 0 };        // slowerRatio,
  G4double FastTimeConstant{ 0 };  // TimeConstant,
  G4double SlowTimeConstant{ 0 };  // slowerTimeConstant,
  G4ScintillationType ScintillationType;
  //
  // properties related to Cerenkov
  //
  G4MaterialPropertyVector* Rindex{ nullptr };
  G4PhysicsOrderedFreeVector* CerenkovAngleIntegrals{ nullptr };
  const G4PhysicsTable* thePhysicsTable{ 0 };
  G4double Pmin{ 0 };
  G4double Pmax{ 0 };
  G4double dp{ 0 };
  G4double nMax{ 0 };
  G4bool first{ false };
  G4bool verbose{ false };
  G4int tCphotons{ 0 };
  G4int tSphotons{ 0 };
  G4double NumElectrons(G4double e, G4double ds);
  lArTPCHitsCollection* flArTPCHitsCollection{ nullptr };
  G4int fHCID{ 0 };
};