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/// \file MagneticField.cc
/// \brief Implementation of the B5::MagneticField class

#include "MagneticField.hh"

#include "G4GenericMessenger.hh"

namespace B5
{

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

MagneticField::MagneticField()
{
  // define commands for this class
  DefineCommands();
}

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

MagneticField::~MagneticField()
{
  delete fMessenger;
}

void MagneticField::GetFieldValue(const G4double[4], double* bField) const
{
  bField[0] = 0.;
  bField[1] = fBy;
  bField[2] = 0.;
}

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

void MagneticField::DefineCommands()
{
  // Define /B5/field command directory using generic messenger class
  fMessenger = new G4GenericMessenger(this, "/B5/field/", "Field control");

  // fieldValue command
  auto& valueCmd = fMessenger->DeclareMethodWithUnit("value", "tesla", &MagneticField::SetField,
                                                     "Set field strength.");
  valueCmd.SetParameterName("field", true);
  valueCmd.SetDefaultValue("1.");
}

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

}  // namespace B5
