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/// \file DetectorConstruction.hh
/// \brief Definition of the DetectorConstruction class

/////////////////////////////////////////////////////////////////////////
//
// TestEm8: Gaseous detector
//
// Created: 31.08.2010 V.Ivanchenko on base of V.Grichine code
//
// Modified:
//
////////////////////////////////////////////////////////////////////////
//

#ifndef DetectorConstruction_h
#define DetectorConstruction_h 1

#include "G4VUserDetectorConstruction.hh"
#include "globals.hh"

class G4Material;
class G4Region;
class DetectorMessenger;
class TargetSD;
class G4Tubs;
class G4VPhysicalVolume;
class G4LogicalVolume;
class G4ProductionCuts;

class DetectorConstruction : public G4VUserDetectorConstruction
{
  public:
    explicit DetectorConstruction();
    ~DetectorConstruction() override;

    G4VPhysicalVolume* Construct() override;
    void ConstructSDandField() override;

    void SetGasMaterial(const G4String&);
    void SetContainerMaterial(const G4String&);
    void SetWorldMaterial(const G4String&);

    void SetGasThickness(G4double);
    void SetGasRadius(G4double);
    void SetContainerThickness(G4double);

    void SetPairEnergy(G4double);

    DetectorConstruction& operator=(const DetectorConstruction& right) = delete;
    DetectorConstruction(const DetectorConstruction&) = delete;

    inline G4VPhysicalVolume* GetWorldPhysVol() const { return fPhysWorld; }
    inline void SetMaxChargedStep(G4double x) { fMaxStep = x; }
    inline G4double GetMaxChargedStep() const { return fMaxStep; }

  private:
    void DefineMaterials();
    void ChangeGeometry();

    G4Material* fGasMat;
    G4Material* fWindowMat;
    G4Material* fWorldMaterial;

    G4double fGasThickness;
    G4double fGasRadius;
    G4double fMaxStep;
    G4double fWindowThick;

    G4Tubs* fSolidWorld = nullptr;
    G4Tubs* fSolidContainer = nullptr;
    G4Tubs* fSolidDetector = nullptr;

    G4VPhysicalVolume* fPhysWorld = nullptr;
    G4LogicalVolume* fLogicWorld = nullptr;
    G4LogicalVolume* fLogicContainer = nullptr;
    G4LogicalVolume* fLogicDetector = nullptr;

    DetectorMessenger* fDetectorMessenger;
    G4ProductionCuts* fGasDetectorCuts;
    G4Region* fRegGasDet = nullptr;
};

#endif