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// (adapted from B1DetectorConstruction)
// Author: A.Knaian (ara@nklabs.com), N.MacFadden (natemacfadden@gmail.com)

#ifndef DetectorConstruction_h
#define DetectorConstruction_h 1

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

#include "FastAerosol.hh"

#include "G4UserLimits.hh"

class G4VPhysicalVolume;
class G4LogicalVolume;
class DetectorConstructionMessenger;

/// Detector construction class to define materials and geometry.

class DetectorConstruction : public G4VUserDetectorConstruction
{
public:
 explicit DetectorConstruction();
 virtual ~DetectorConstruction();
 virtual G4VPhysicalVolume* Construct() override;
	
 G4LogicalVolume* GetScoringVolume() const { return fScoringVolume; }

 // Physics
 G4double fStepLim = DBL_MAX;// global step limit
 G4UserLimits* fStepLimits;// physics implementation of limit

 // Cloud build choice
 G4bool fFastAerosolCloud = false;
 G4bool fParameterisedCloud = false;
 G4bool fSmoothCloud = false;

 // Cloud droplet details
 G4double fDropletR = 1;

 // FastAerosol cloud details
 FastAerosol* fCloud = NULL; // the cloud bulk and droplet positions
 
 G4bool fPrePopulate = false;
 // whether to pre-load droplet positions (true) or not (false)
 G4double fDropletNumDens = 0; //number density of droplets
 G4double fMinSpacing = 0.0;// minimum spacing between droplets
 G4int fCloudSeed = 0; // random seed dictating droplet distribution

 // parameterised cloud details
 G4double fSmartless = 2.0;				
 // control the 'fSmartless' property of parameterised solid. Roughly how many voxels the volume is split into for geometry optimization

 G4String fCloudShapeStr = "box";        // cloud bulk shape
 G4String fDropletShapeStr = "sphere";	// droplet shape

 G4VSolid* fCloudShape;	// actual cloud bulk shape
 G4VSolid* fDropletShape;// actual droplet solid

protected:
 G4LogicalVolume*  fScoringVolume;

private:
 DetectorConstructionMessenger* fMessenger;
};

#endif