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  #include "../ForwardTranslator.hpp"
  
  #include "../../model/Model.hpp"
  #include "../../model/ConstructionWithInternalSource.hpp"
  #include "../../model/ConstructionWithInternalSource_Impl.hpp"
  
  #include "../../model/Material.hpp"
  #include "../../model/Material_Impl.hpp"
  
  #include <utilities/idd/Construction_FieldEnums.hxx>
  #include <utilities/idd/ConstructionProperty_InternalHeatSource_FieldEnums.hxx>
  #include "../../utilities/idd/IddEnums.hpp"
  #include <utilities/idd/IddEnums.hxx>
  #include <utilities/idd/IddFactory.hxx>
  
  using namespace openstudio::model;
  
  using namespace std;
  
  namespace openstudio {
  
  namespace energyplus {
  
    boost::optional<IdfObject> ForwardTranslator::translateConstructionWithInternalSource(model::ConstructionWithInternalSource& modelObject) {
  
      // New in E+ 9.5.0:  `Construction:InternalSource` used to be a standalone object listing it's layers.
      // Now it's replaced with `ConstructionProperty:InternalHeatSource` which references a `Construction` object.
      // I have made the choice to keep the OS SDK API intact and handle that in the ForwardTranslator.
  
      //Layers: starting in E+ 9.5.0,
      MaterialVector layers = modelObject.layers();
  
      if (layers.empty()) {
        LOG(Warn, modelObject.briefDescription() << " has no layers, it will not be translated.");
        return boost::none;
      }
  
      IdfObject constructionObject(openstudio::IddObjectType::Construction);
      m_idfObjects.push_back(constructionObject);
      //Name
      constructionObject.setString(ConstructionFields::Name, modelObject.name().get());
  
      unsigned fieldIndex = 1;
      for (unsigned layerIndex = 0; layerIndex < layers.size(); ++layerIndex) {
        Material material = layers[layerIndex];
        translateAndMapModelObject(material);
        constructionObject.setString(fieldIndex++, material.name().get());
      }
  
      // And we also do the ConstructionProperty:InternalHeatSource object
      IdfObject propertyObject(openstudio::IddObjectType::ConstructionProperty_InternalHeatSource);
      m_idfObjects.push_back(propertyObject);
  
      propertyObject.setString(ConstructionProperty_InternalHeatSourceFields::Name, modelObject.name().get() + " InternalHeatSource Property");
  
      propertyObject.setString(ConstructionProperty_InternalHeatSourceFields::ConstructionName, modelObject.name().get());
  
      //Source Present After Layer Number
      propertyObject.setInt(ConstructionProperty_InternalHeatSourceFields::ThermalSourcePresentAfterLayerNumber,
                            modelObject.sourcePresentAfterLayerNumber());
  
      //Temperature Calculation Requested After Layer Number
      propertyObject.setInt(ConstructionProperty_InternalHeatSourceFields::TemperatureCalculationRequestedAfterLayerNumber,
                            modelObject.temperatureCalculationRequestedAfterLayerNumber());
  
      // Dimensions for the CTF Calculation
      propertyObject.setInt(ConstructionProperty_InternalHeatSourceFields::DimensionsfortheCTFCalculation,
                            modelObject.dimensionsForTheCTFCalculation());
  
      // Tube Spacing
      propertyObject.setDouble(ConstructionProperty_InternalHeatSourceFields::TubeSpacing, modelObject.tubeSpacing());
  
      // Two Dimensional Temperature Calculation Position
      propertyObject.setDouble(ConstructionProperty_InternalHeatSourceFields::TwoDimensionalTemperatureCalculationPosition,
                               modelObject.twoDimensionalTemperatureCalculationPosition());
  
      // What we return is the construction object, not the property object
      return constructionObject;
    }
  
  }  // namespace energyplus
  
  }  // namespace openstudio
  