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/// \file electromagnetic/TestEm7/src/PhysicsList.cc
/// \brief Implementation of the PhysicsList class
//
// $Id$
//
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#include "PhysicsList.hh"
#include "PhysicsListMessenger.hh"

#include "PhysListEmStandard.hh"
#include "PhysListEmStandardNR.hh"
#include "G4EmStandardPhysics.hh"
#include "G4EmStandardPhysics_option1.hh"
#include "G4EmStandardPhysics_option2.hh"
#include "G4EmStandardPhysics_option3.hh"
#include "G4EmStandardPhysics_option4.hh"
#include "G4EmStandardPhysicsWVI.hh"
#include "G4EmStandardPhysicsGS.hh"
#include "G4EmStandardPhysicsSS.hh"

#include "G4EmLivermorePhysics.hh"
#include "G4EmPenelopePhysics.hh"
#include "G4EmLowEPPhysics.hh"

#include "G4DecayPhysics.hh"

#include "G4HadronElasticPhysics.hh"
#include "G4HadronDElasticPhysics.hh"
#include "G4HadronHElasticPhysics.hh"
#include "G4HadronInelasticQBBC.hh"
#include "G4IonPhysics.hh"

#include "G4LossTableManager.hh"
#include "G4EmConfigurator.hh"
#include "G4UnitsTable.hh"

#include "G4ProcessManager.hh"
#include "G4Decay.hh"

#include "StepMax.hh"

#include "G4IonFluctuations.hh"
#include "G4IonParametrisedLossModel.hh"
#include "G4UniversalFluctuation.hh"

#include "G4BraggIonGasModel.hh"
#include "G4BetheBlochIonGasModel.hh"

#include "G4PhysicalConstants.hh"
#include "G4SystemOfUnits.hh"

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PhysicsList::PhysicsList() : G4VModularPhysicsList(),
  fStepMaxProcess(nullptr)
{
  fHelIsRegisted  = false;
  fBicIsRegisted  = false;
  fBiciIsRegisted = false;

  // protected member of the base class
  verboseLevel = 1;

  fMessenger = new PhysicsListMessenger(this);

  // EM physics
  fEmName = G4String("emstandard_opt0");  
  fEmPhysicsList = new G4EmStandardPhysics(verboseLevel);

  // Deacy physics and all particles
  fDecPhysicsList = new G4DecayPhysics(verboseLevel);
}

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PhysicsList::~PhysicsList()
{
  delete fMessenger;
  delete fEmPhysicsList;
  delete fDecPhysicsList;
  for(size_t i=0; i<fHadronPhys.size(); i++) {delete fHadronPhys[i];}
}

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void PhysicsList::ConstructParticle()
{
  fDecPhysicsList->ConstructParticle();
}

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void PhysicsList::ConstructProcess()
{
  // transportation
  //
  AddTransportation();
  
  // electromagnetic physics list
  //
  fEmPhysicsList->ConstructProcess();

  // decay physics list
  //
  fDecPhysicsList->ConstructProcess();
  
  // hadronic physics lists
  for(size_t i=0; i<fHadronPhys.size(); i++) {
    fHadronPhys[i]->ConstructProcess();
  }
  
  // step limitation (as a full process)
  //  
  AddStepMax();  
}

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void PhysicsList::AddPhysicsList(const G4String& name)
{
  if (verboseLevel>1) {
    G4cout << "PhysicsList::AddPhysicsList: <" << name << ">" << G4endl;
  }

  if (name == fEmName) return;

  if (name == "local") {

    fEmName = name;
    delete fEmPhysicsList;
    fEmPhysicsList = new PhysListEmStandard(name);

  } else if (name == "emstandard_opt0") {

    fEmName = name;
    delete fEmPhysicsList;
    fEmPhysicsList = new G4EmStandardPhysics(verboseLevel);

  } else if (name == "emstandard_opt1") {

    fEmName = name;
    delete fEmPhysicsList;
    fEmPhysicsList = new G4EmStandardPhysics_option1(verboseLevel);

  } else if (name == "emstandard_opt2") {

    fEmName = name;
    delete fEmPhysicsList;
    fEmPhysicsList = new G4EmStandardPhysics_option2(verboseLevel);
    
  } else if (name == "emstandard_opt3") {

    fEmName = name;
    delete fEmPhysicsList;
    fEmPhysicsList = new G4EmStandardPhysics_option3(verboseLevel);
    
  } else if (name == "emstandard_opt4") {

    fEmName = name;
    delete fEmPhysicsList;
    fEmPhysicsList = new G4EmStandardPhysics_option4(verboseLevel);

  } else if (name == "ionGasModels") {

    AddPhysicsList("emstandard_opt0");
    fEmName = name;
    AddIonGasModels();

  } else if (name == "standardNR") {

    fEmName = name;
    delete fEmPhysicsList;
    fEmPhysicsList = new PhysListEmStandardNR(name);

  } else if (name == "emlivermore") {
    fEmName = name;
    delete fEmPhysicsList;
    fEmPhysicsList = new G4EmLivermorePhysics(verboseLevel);

  } else if (name == "empenelope") {
    fEmName = name;
    delete fEmPhysicsList;
    fEmPhysicsList = new G4EmPenelopePhysics(verboseLevel);

  } else if (name == "emlowenergy") {
    fEmName = name;
    delete fEmPhysicsList;
    fEmPhysicsList = new G4EmLowEPPhysics(verboseLevel);

  } else if (name == "emstandardSS") {

    fEmName = name;
    delete fEmPhysicsList;
    fEmPhysicsList = new G4EmStandardPhysicsSS(verboseLevel);

  } else if (name == "emstandardWVI") {

    fEmName = name;
    delete fEmPhysicsList;
    fEmPhysicsList = new G4EmStandardPhysicsWVI(verboseLevel);

  } else if (name == "emstandardGS") {

    fEmName = name;
    delete fEmPhysicsList;
    fEmPhysicsList = new G4EmStandardPhysicsGS(verboseLevel);

  } else if (name == "elastic" && !fHelIsRegisted) {
    fHadronPhys.push_back( new G4HadronElasticPhysics(verboseLevel));
    fHelIsRegisted = true;

  } else if (name == "DElastic" && !fHelIsRegisted) {
    fHadronPhys.push_back( new G4HadronDElasticPhysics(verboseLevel));
    fHelIsRegisted = true;

  } else if (name == "HElastic" && !fHelIsRegisted) {
    fHadronPhys.push_back( new G4HadronHElasticPhysics(verboseLevel));
    fHelIsRegisted = true;

  } else if (name == "binary" && !fBicIsRegisted) {
    fHadronPhys.push_back(new G4HadronInelasticQBBC(verboseLevel));
    fBicIsRegisted = true;

  } else if (name == "binary_ion" && !fBiciIsRegisted) {
    fHadronPhys.push_back(new G4IonPhysics(verboseLevel));
    fBiciIsRegisted = true;

  } else {

    G4cout << "PhysicsList::AddPhysicsList: <" << name << ">"
           << " is not defined"
           << G4endl;
  }
}

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void PhysicsList::AddStepMax()
{
  // Step limitation seen as a process
  fStepMaxProcess = new StepMax();

  auto particleIterator=GetParticleIterator();
  particleIterator->reset();
  while ((*particleIterator)()){
    G4ParticleDefinition* particle = particleIterator->value();
    G4ProcessManager* pmanager = particle->GetProcessManager();

    if (fStepMaxProcess->IsApplicable(*particle) && pmanager)
      {
        pmanager ->AddDiscreteProcess(fStepMaxProcess);
      }
  }
}

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void PhysicsList::AddIonGasModels()
{
  G4EmConfigurator* em_config = 
    G4LossTableManager::Instance()->EmConfigurator();
  auto particleIterator=GetParticleIterator();
  particleIterator->reset();
  while ((*particleIterator)())
  {
    G4ParticleDefinition* particle = particleIterator->value();
    G4String partname = particle->GetParticleName();
    if(partname == "alpha" || partname == "He3" || partname == "GenericIon") {
      G4BraggIonGasModel* mod1 = new G4BraggIonGasModel();
      G4BetheBlochIonGasModel* mod2 = new G4BetheBlochIonGasModel();
      G4double eth = 2.*MeV*particle->GetPDGMass()/proton_mass_c2;
      em_config->SetExtraEmModel(partname,"ionIoni",mod1,"",0.0,eth,
                                 new G4IonFluctuations());
      em_config->SetExtraEmModel(partname,"ionIoni",mod2,"",eth,100*TeV,
                                 new G4UniversalFluctuation());

    }
  }
}

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