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#ifndef G4PSSphereSurfaceCurrent_h
#define G4PSSphereSurfaceCurrent_h 1

#include "G4VPrimitiveScorer.hh"
#include "G4THitsMap.hh"

#include "G4Sphere.hh"
#include "G4PSDirectionFlag.hh"
////////////////////////////////////////////////////////////////////////////////
// (Description)
//   This is a primitive scorer class for scoring Surface Current.
//  Current version assumes only for G4Sphere shape, and the surface
//  is defined at the inside of the sphere.
//   The current is given in the unit of area.
//    e.g.  (Number of tracks)/mm2.
//
// Surface is defined  at the inside of sphere.
// Direction                  -Rmin   +Rmax
//   0  IN || OUT            ->|<-     |      fCurrent_InOut
//   1  IN                   ->|       |      fCurrent_In
//   2  OUT                    |<-     |      fCurrent_Out
//
// Created: 2005-11-14  Tsukasa ASO, Akinori Kimura.
//   17-Nov-2005 Bug fix. square definition.
//   31-Mar-2007 T.Aso, Add option for normalizing by the area.
// 2010-07-22   Introduce Unit specification.
//
///////////////////////////////////////////////////////////////////////////////

class G4PSSphereSurfaceCurrent : public G4VPrimitiveScorer
{
 public:
  G4PSSphereSurfaceCurrent(const G4String& name, G4int direction, G4int depth = 0);
  G4PSSphereSurfaceCurrent(const G4String& name, G4int direction, const G4String& unit,
                           G4int depth = 0);
  ~G4PSSphereSurfaceCurrent() override = default;

  inline void Weighted(G4bool flg = true) { weighted = flg; }
  // Multiply track weight
  inline void DivideByArea(G4bool flg = true) { divideByArea = flg; }
  // Divided by Area.

  void Initialize(G4HCofThisEvent*) override;
  void clear() override;
  void PrintAll() override;

  virtual void SetUnit(const G4String& unit);

 protected:
  G4bool ProcessHits(G4Step*, G4TouchableHistory*) override;
  G4int IsSelectedSurface(G4Step*, G4Sphere*);
  virtual void DefineUnitAndCategory();

 private:
  G4int HCID;
  G4int fDirection;
  G4THitsMap<G4double>* EvtMap;
  G4bool weighted;
  G4bool divideByArea;
};

#endif