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/// \file F02DetectorConstruction.hh
/// \brief Definition of the F02DetectorConstruction class

#ifndef F02DetectorConstruction_h
#define F02DetectorConstruction_h 1

#include "G4VUserDetectorConstruction.hh"
#include "G4Cache.hh"
#include "G4ThreeVector.hh"

#include "CLHEP/Units/SystemOfUnits.h"

class G4Box;
class G4Tubs;
class G4LogicalVolume;
class G4VPhysicalVolume;

class G4Material;
class G4UniformMagField;

class F02DetectorMessenger;
class F02CalorimeterSD;

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

class F02DetectorConstruction : public G4VUserDetectorConstruction
{
  public:
    F02DetectorConstruction();
    ~F02DetectorConstruction() override;

    void SetAbsorberMaterial(G4String);
    void SetAbsorberThickness(G4double);
    void SetAbsorberRadius(G4double);

    void SetAbsorberZpos(G4double);

    void SetWorldMaterial(G4String);
    void SetWorldSizeZ(G4double);
    void SetWorldSizeR(G4double);

    void SetFieldValue(G4ThreeVector value);

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

    void PrintCalorParameters();

    G4Material* GetWorldMaterial() { return fWorldMaterial; }
    G4double GetWorldSizeZ() { return fWorldSizeZ; }
    G4double GetWorldSizeR() { return fWorldSizeR; }

    G4double GetAbsorberZpos() { return fZAbsorber; }
    G4double GetZStartAbs() { return fZStartAbs; }
    G4double GetZEndAbs() { return fZEndAbs; }

    G4Material* GetAbsorberMaterial() { return fAbsorberMaterial; }
    G4double GetAbsorberThickness() { return fAbsorberThickness; }
    G4double GetAbsorberRadius() { return fAbsorberRadius; }

    const G4VPhysicalVolume* GetPhysiWorld() { return fPhysiWorld; }
    const G4VPhysicalVolume* GetAbsorber() { return fPhysiAbsorber; }
    G4LogicalVolume* GetLogicalAbsorber() { return fLogicAbsorber; }

  private:
    void DefineMaterials();
    void ComputeCalorParameters();
    G4VPhysicalVolume* ConstructCalorimeter();

    F02DetectorMessenger* fDetectorMessenger = nullptr;  // pointer -> Messenger
    G4Cache<F02CalorimeterSD*> fCalorimeterSD = nullptr;  // pointer -> sensitive detector

    G4Tubs* fSolidWorld = nullptr;  // pointer to the solid World
    G4LogicalVolume* fLogicWorld = nullptr;  // pointer to the logical World
    G4VPhysicalVolume* fPhysiWorld = nullptr;  // pointer to the physical World

    G4Tubs* fSolidAbsorber = nullptr;  // pointer to the solid Absorber
    G4LogicalVolume* fLogicAbsorber = nullptr;  // pointer to the logical Absorber
    G4VPhysicalVolume* fPhysiAbsorber = nullptr;  // pointer to the physical Absorber

    G4Material* fAbsorberMaterial = nullptr;
    G4double fAbsorberThickness = 4. * CLHEP::cm;
    G4double fAbsorberRadius = 10. * CLHEP::cm;
    G4bool fWorldChanged;

    G4double fZAbsorber = 36. * CLHEP::cm;
    G4double fZStartAbs = 0.;
    G4double fZEndAbs = 0.;

    G4Material* fWorldMaterial = nullptr;
    G4double fWorldSizeR = 20. * CLHEP::cm;
    G4double fWorldSizeZ = 80. * CLHEP::cm;

    G4ThreeVector fFieldVector = {0., 100000.0*CLHEP::kilovolt/CLHEP::cm, 0.};
};

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

inline void F02DetectorConstruction::ComputeCalorParameters()
{
  // Compute derived parameters of the calorimeter

  fZStartAbs = fZAbsorber - 0.5 * fAbsorberThickness;
  fZEndAbs = fZAbsorber + 0.5 * fAbsorberThickness;
}

#endif