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#ifndef LXeDetectorConstruction_H
#define LXeDetectorConstruction_H 1

class G4LogicalVolume;
class G4VPhysicalVolume;
class G4Box;
class G4Tubs;
class LXePMTSD;
class LXeScintSD;
class G4Sphere;

#include "G4Material.hh"
#include "LXeDetectorMessenger.hh"
#include "G4VisAttributes.hh"
#include "G4RotationMatrix.hh"
#include "G4VUserDetectorConstruction.hh"

class LXeDetectorConstruction : public G4VUserDetectorConstruction
{
  public:

    LXeDetectorConstruction();
    ~LXeDetectorConstruction();

    G4VPhysicalVolume* Construct();

  //Functions to modify the geometry
  void SetDimensions(G4ThreeVector dims);
  void SetHousingThickness(G4double d_mtl);
  void SetNX(G4int nx);
  void SetNY(G4int ny);
  void SetNZ(G4int nz);
  void SetPMTRadius(G4double outerRadius_pmt);
  void SetDefaults();

  //Get values
  G4double GetScintX(){return scint_x;}
  G4double GetScintY(){return scint_y;}
  G4double GetScintZ(){return scint_z;}
  G4double GetHousingThickness(){return d_mtl;}
  G4int GetNX(){return nx;}
  G4int GetNY(){return ny;}
  G4int GetNZ(){return nz;}
  G4double GetPMTRadius(){return outerRadius_pmt;}
  G4double GetSlabZ(){return slab_z;}
    
  //rebuild the geometry based on changes. must be called
  void UpdateGeometry();
  G4bool GetUpdated(){return updated;}

  void SetSphereOn(G4bool b){sphereOn=b;updated=true;}
  static G4bool GetSphereOn(){return sphereOn;}

  void SetHousingReflectivity(G4double r){refl=r;updated=true;}
  G4double GetHousingReflectivity(){return refl;}

  void SetWLSSlabOn(G4bool b){WLSslab=b;updated=true;}
  G4bool GetWLSSlabOn(){return WLSslab;}

  void SetMainVolumeOn(G4bool b){mainVolume=b;updated=true;}
  G4bool GetMainVolumeOn(){return mainVolume;}

  void SetNFibers(G4int n){nfibers=n;updated=true;}
  G4int GetNFibers(){return nfibers;}

  void SetMainScintYield(G4double y);
  void SetWLSScintYield(G4double y);

private:

  void DefineMaterials();
  G4VPhysicalVolume* ConstructDetector();

  LXeDetectorMessenger* detectorMessenger;

  G4bool updated;
   
  G4Box* experimentalHall_box;
  G4LogicalVolume* experimentalHall_log;
  G4VPhysicalVolume* experimentalHall_phys;

  //Materials & Elements
  G4Material* LXe;
  G4Material* Al;
  G4Element* N;
  G4Element* O;
  G4Material* Air;
  G4Material* Vacuum;
  G4Element* C;
  G4Element* H;
  G4Material* Glass;
  G4Material* Pstyrene;
  G4Material* PMMA;
  G4Material* Pethylene;
  G4Material* fPethylene; 



  //Geometry
  G4double scint_x;
  G4double scint_y;
  G4double scint_z;
  G4double d_mtl;
  G4int nx;
  G4int ny;
  G4int nz;
  G4double outerRadius_pmt;
  G4int nfibers;
  static G4bool sphereOn;
  G4double refl;
  G4bool WLSslab;
  G4bool mainVolume;
  G4double slab_z;

  G4MaterialPropertiesTable* LXe_mt;
  G4MaterialPropertiesTable* MPTPStyrene;

};

#endif