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// $Id: G4CrossSectionDataSetRegistry.cc 93904 2015-11-03 10:16:36Z gcosmo $
//
// -------------------------------------------------------------------
//
// GEANT4 Class file
//
//
// File name:    G4CrossSectionDataSetRegistry
//
// Author  V.Ivanchenko  24.01.2009
//
// Modifications:
//

#include "G4ios.hh"

#include "G4CrossSectionDataSetRegistry.hh"
#include "G4VCrossSectionDataSet.hh"
#include "G4CrossSectionFactory.hh"
#include "G4CrossSectionFactoryRegistry.hh"

// Neeed for running with 'static' libraries to pull the references of the 
// declared factories
G4_REFERENCE_XS_FACTORY(G4ChipsKaonMinusInelasticXS);
G4_REFERENCE_XS_FACTORY(G4ChipsKaonMinusElasticXS);
G4_REFERENCE_XS_FACTORY(G4ChipsKaonPlusInelasticXS);
G4_REFERENCE_XS_FACTORY(G4ChipsKaonPlusElasticXS);
G4_REFERENCE_XS_FACTORY(G4ChipsKaonZeroInelasticXS);
G4_REFERENCE_XS_FACTORY(G4ChipsKaonZeroElasticXS);
G4_REFERENCE_XS_FACTORY(G4ChipsHyperonInelasticXS);
G4_REFERENCE_XS_FACTORY(G4ChipsHyperonElasticXS);
G4_REFERENCE_XS_FACTORY(G4ChipsProtonInelasticXS);
G4_REFERENCE_XS_FACTORY(G4ChipsProtonElasticXS);
G4_REFERENCE_XS_FACTORY(G4ChipsNeutronInelasticXS);
G4_REFERENCE_XS_FACTORY(G4ChipsNeutronElasticXS);
G4_REFERENCE_XS_FACTORY(G4ChipsPionPlusInelasticXS);
G4_REFERENCE_XS_FACTORY(G4ChipsPionPlusElasticXS);
G4_REFERENCE_XS_FACTORY(G4ChipsPionMinusInelasticXS);
G4_REFERENCE_XS_FACTORY(G4ChipsPionMinusElasticXS);
G4_REFERENCE_XS_FACTORY(G4ChipsAntiBaryonInelasticXS);
G4_REFERENCE_XS_FACTORY(G4ChipsAntiBaryonElasticXS);
G4_REFERENCE_XS_FACTORY(G4NucleonNuclearCrossSection);
G4_REFERENCE_XS_FACTORY(G4ElectroNuclearCrossSection);
G4_REFERENCE_XS_FACTORY(G4PhotoNuclearCrossSection);
G4_REFERENCE_XS_FACTORY(G4PiNuclearCrossSection);
G4_REFERENCE_XS_FACTORY(G4NeutronInelasticXS);
G4_REFERENCE_XS_FACTORY(G4NeutronElasticXS);
G4_REFERENCE_XS_FACTORY(G4NeutronCaptureXS);


G4ThreadLocal G4CrossSectionDataSetRegistry* G4CrossSectionDataSetRegistry::instance = 0;

G4CrossSectionDataSetRegistry* G4CrossSectionDataSetRegistry::Instance()
{
  if(0 == instance) {
    static G4ThreadLocalSingleton<G4CrossSectionDataSetRegistry> inst;
    instance = inst.Instance();
  }
  return instance;
}

G4CrossSectionDataSetRegistry::G4CrossSectionDataSetRegistry()
{}

G4CrossSectionDataSetRegistry::~G4CrossSectionDataSetRegistry()
{
  Clean();
}

void G4CrossSectionDataSetRegistry::Clean()
{
  size_t n = xSections.size(); 
  for (size_t i=0; i<n; ++i) {
    if(xSections[i]) {
      const char* xxx = (xSections[i]->GetName()).c_str();
      G4int len = (xSections[i]->GetName()).length();
      len = std::min(len, 9);
      const G4String xname = G4String(xxx, len);
      //std::cout << "G4CrossSectionDataSetRegistry::Clean " << xname 
      //		<< "  " << xSections[i] << " " << this << std::endl;
      if( (xname != "NeutronHP") && (xname != "ParticleH") ) {
	delete xSections[i];
      }
      //std::cout << "  done" << " " << this  << std::endl;
    }
  }
  xSections.clear();
}

void G4CrossSectionDataSetRegistry::Register(G4VCrossSectionDataSet* p)
{
  if(!p) return;
  size_t n = xSections.size(); 
  for (size_t i=0; i<n; ++i) {
    if(xSections[i] == p) { return; }
  }
  //G4cout << "Register x-section: " << p->GetName() << "  " << p 
  //	 << "  " << this << G4endl;
  xSections.push_back(p);
}

void G4CrossSectionDataSetRegistry::DeRegister(G4VCrossSectionDataSet* p)
{
  if(!p) return;
  size_t n = xSections.size(); 
  for (size_t i=0; i<n; ++i) {
    if(xSections[i] == p) {
      xSections[i] = 0;
      return;
    }
  }
}

//void G4CrossSectionDataSetRegistry::AddFactory(G4String name, G4VBaseXSFactory* factory)
//{
//  factories[name] = factory;
//}

G4VCrossSectionDataSet* G4CrossSectionDataSetRegistry::GetCrossSectionDataSet(const G4String& name, G4bool warning)
{
  size_t n = xSections.size(); 
 
  for (size_t i=0; i<n; ++i) 
    {
      if(xSections[i]) 
	{
	  G4VCrossSectionDataSet* p = xSections[i];
	  if (p->GetName() == name) return p;
	}
    }
  // check if factory exists...
  //
    G4CrossSectionFactoryRegistry* factories = G4CrossSectionFactoryRegistry::Instance();
    //This thorws if factory is not found, add second parameter to false to avoid this
    G4VBaseXSFactory* factory = factories->GetFactory(name, warning );
    if ( factory )
        return factory->Instantiate();
    else
        return static_cast<G4VCrossSectionDataSet*>(0);
}