IfcSverchok by_type node now updates to be schema dependent on the in…

…put file

src/ifcsverchok/nodes/ifc/by_type.py

@@ -4,15 +4,69 @@
 from bpy.props import StringProperty, EnumProperty
 from sverchok.node_tree import SverchCustomTreeNode
 from sverchok.data_structure import updateNode
-from blenderbim.bim.module.root.prop import getIfcClasses, getIfcProducts, refreshClasses, refreshPredefinedTypes
+
+
+def get_ifc_products(self, context):
+    ifc_products = getattr(self, "ifc_products", [])
+    file = self.inputs["file"].sv_get()[0][0]
+    if not file:
+        return []
+    if ifc_products and file:
+        return ifc_products
+    ifc_products = []
+    ifc_products.extend(
+        [
+            (e, e, "")
+            for e in [
+                "IfcElement",
+                "IfcElementType",
+                "IfcSpatialElement",
+                "IfcGroup",
+                "IfcStructuralItem",
+                "IfcContext",
+                "IfcAnnotation",
+            ]
+        ]
+    )
+    if file.schema == "IFC2X3":
+        ifc_products[2] = ("IfcSpatialStructureElement", "IfcSpatialStructureElement", "")
+    return ifc_products
+
+
+def update_ifc_products(self, context):
+    if hasattr(self, "ifc_classes"):
+        self.ifc_classes.clear()
+
+
+def get_ifc_classes(self, context):
+    ifc_classes = getattr(self, "ifc_classes", [])
+    if ifc_classes:
+        return self.ifc_classes
+    file = self.inputs["file"].sv_get()[0][0]
+    if not file:
+        return []
+    schema = ifcopenshell.ifcopenshell_wrapper.schema_by_name(file.schema)
+    declaration = schema.declaration_by_name(self.ifc_product)
+
+    def get_classes(declaration):
+        results = []
+        if not declaration.is_abstract():
+            results.append(declaration.name())
+        for subtype in declaration.subtypes():
+            results.extend(get_classes(subtype))
+        return results
+
+    classes = get_classes(declaration)
+    ifc_classes.extend([(c, c, "") for c in sorted(classes)])
+    return ifc_classes
 
 
 class SvIfcByType(bpy.types.Node, SverchCustomTreeNode, ifcsverchok.helper.SvIfcCore):
     bl_idname = "SvIfcByType"
     bl_label = "IFC By Type"
     file: StringProperty(name="file", update=updateNode)
-    ifc_product: EnumProperty(items=getIfcProducts, name="Products", update=refreshClasses)
-    ifc_class: EnumProperty(items=getIfcClasses, name="Class", update=refreshPredefinedTypes)
+    ifc_product: EnumProperty(items=get_ifc_products, name="Products", update=update_ifc_products)
+    ifc_class: EnumProperty(items=get_ifc_classes, name="Class", update=updateNode)
     custom_ifc_class: StringProperty(name="Custom Ifc Class", update=updateNode)
 
     def sv_init(self, context):
@@ -23,6 +77,10 @@ def sv_init(self, context):
         self.outputs.new("SvStringsSocket", "entity")
 
     def process(self):
+        file = self.inputs["file"].sv_get()[0][0]
+        if file:
+            self.ifc_products = get_ifc_products(self, bpy.context)
+            self.ifc_classes = get_ifc_classes(self, bpy.context)
         self.sv_input_names = ["file", "ifc_product", "ifc_class", "custom_ifc_class"]
         super().process()