calculate embodied carbon for metals

src/applications/revit/revit_carbon_processor.py

@@ -1,11 +1,14 @@
 from src.core.base import CarbonProcessor
+from src.core.types import ( MetalClass, WoodClass )
 from src.carbon.types import CarbonData
+from src.carbon.data import ( wood_factors, metal_factors )
 from src.applications.revit.utils.material_type_handler import (
     MaterialType,
 )
 from src.applications.revit.utils.constants import (
     PROPERTIES,
 )
+import json
 
 class RevitCarbonProcessor(CarbonProcessor):
     """Implementation of CarbonProcessor for Revit context."""
@@ -23,12 +26,23 @@ class RevitCarbonProcessor(CarbonProcessor):
         print(material_type)
 
         match material_type:
-            case MaterialType.CONCRETE:
+            case MaterialType.CONCRETE.value:
                 # TODO
                 pass
-            case MaterialType.WOOD:
+            case MaterialType.WOOD.value:
                 # TODO
                 pass
-            case MaterialType.METAL:
-                # TODO
+            case MaterialType.METAL.value:
+                material_quantities = model_object[PROPERTIES]["Material Quantities"]["FE_Steel"]
+                volume, density = material_quantities.volume.value, material_quantities.density.value
+                mass =  volume * density
+
+                # Default to hot rolled
+                factor = metal_factors[MetalClass.HOT_ROLLED]
+
+                embodied_carbon = mass * factor
+
+                model_object[PROPERTIES]["Embodied Carbon Data"]["category"] = MetalClass.HOT_ROLLED
+                model_object[PROPERTIES]["Embodied Carbon Data"]["factor"] = factor
+                model_object[PROPERTIES]["Embodied Carbon Data"]["embodied_carbon"] = embodied_carbon
                 pass