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/// \file TransitionRadiationPhysics.cc
/// \brief Implementation of the TransitionRadiationPhysics class

#include "TransitionRadiationPhysics.hh"

#include "DetectorConstruction.hh"
#include "XTRTransparentRegRadModel.hh"

#include "G4Electron.hh"
#include "G4GammaXTRadiator.hh"
#include "G4Positron.hh"
#include "G4ProcessManager.hh"
#include "G4RegularXTRadiator.hh"
#include "G4StrawTubeXTRadiator.hh"
#include "G4TransparentRegXTRadiator.hh"
#include "G4VXTRenergyLoss.hh"
#include "G4XTRGammaRadModel.hh"
#include "G4XTRRegularRadModel.hh"
#include "G4XTRTransparentRegRadModel.hh"

G4ThreadLocal G4VXTRenergyLoss* TransitionRadiationPhysics::fXTRProcess = nullptr;

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

TransitionRadiationPhysics::TransitionRadiationPhysics(G4int verb, DetectorConstruction* ptr)
  : G4VPhysicsConstructor("XTR"), fDetector(ptr), fVerbose(verb), fXTRModel("transpM")
{}

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

TransitionRadiationPhysics::~TransitionRadiationPhysics() {}

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

void TransitionRadiationPhysics::ConstructProcess()
{
  if ("dummy" == fXTRModel) {
    return;
  }
  if (0 < fVerbose) {
    G4cout << "TransitionRadiationPhysics: XTR model <" << fXTRModel << ">" << G4endl;
  }
  RadiatorDescription* rDescription = fDetector->GetRadiatorDescription();

  if (fXTRModel == "gammaR") {
    fXTRProcess = new G4GammaXTRadiator(rDescription->fLogicalVolume, 100., 100.,
                                        rDescription->fFoilMaterial, rDescription->fGasMaterial,
                                        rDescription->fFoilThickness, rDescription->fGasThickness,
                                        rDescription->fFoilNumber, "GammaXTRadiator");
  }
  else if (fXTRModel == "gammaM") {
    fXTRProcess = new G4XTRGammaRadModel(rDescription->fLogicalVolume, 100., 100.,
                                         rDescription->fFoilMaterial, rDescription->fGasMaterial,
                                         rDescription->fFoilThickness, rDescription->fGasThickness,
                                         rDescription->fFoilNumber, "GammaXTRadiator");
  }
  else if (fXTRModel == "strawR") {
    fXTRProcess = new G4StrawTubeXTRadiator(
      rDescription->fLogicalVolume, rDescription->fFoilMaterial, rDescription->fGasMaterial, 0.53,
      3.14159, fDetector->GetAbsorberMaterial(), true, "strawXTRadiator");
  }
  else if (fXTRModel == "regR") {
    fXTRProcess = new G4RegularXTRadiator(rDescription->fLogicalVolume, rDescription->fFoilMaterial,
                                          rDescription->fGasMaterial, rDescription->fFoilThickness,
                                          rDescription->fGasThickness, rDescription->fFoilNumber,
                                          "RegularXTRadiator");
  }
  else if (fXTRModel == "transpR") {
    // G4TransparentRegXTRadiator*
    fXTRProcess = new G4TransparentRegXTRadiator(
      rDescription->fLogicalVolume, rDescription->fFoilMaterial, rDescription->fGasMaterial,
      rDescription->fFoilThickness, rDescription->fGasThickness, rDescription->fFoilNumber,
      "RegularXTRadiator");
  }
  else if (fXTRModel == "regM") {
    fXTRProcess = new G4XTRRegularRadModel(
      rDescription->fLogicalVolume, rDescription->fFoilMaterial, rDescription->fGasMaterial,
      rDescription->fFoilThickness, rDescription->fGasThickness, rDescription->fFoilNumber,
      "RegularXTRadiator");
  }
  else if (fXTRModel == "transpM") {
    fXTRProcess = new XTRTransparentRegRadModel(
      rDescription->fLogicalVolume, rDescription->fFoilMaterial, rDescription->fGasMaterial,
      rDescription->fFoilThickness, rDescription->fGasThickness, rDescription->fFoilNumber,
      "RegularXTRadiator");
  }
  if (!fXTRProcess) {
    if (0 < fVerbose) {
      G4cout << "TransitionRadiationPhysics: XTR model <" << fXTRModel
             << "> is not known - no XTR process defined" << G4endl;
    }
    return;
  }

  fXTRProcess->SetVerboseLevel(fVerbose);

  G4Electron* elec = G4Electron::Electron();
  G4ProcessManager* manager = elec->GetProcessManager();
  manager->AddDiscreteProcess(fXTRProcess);

  G4Positron* posi = G4Positron::Positron();
  manager = posi->GetProcessManager();
  manager->AddDiscreteProcess(fXTRProcess);
}

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