Show templates based on selected IFC schema #5530

src/bonsai/bonsai/bim/module/project/data.py

@@ -22,6 +22,7 @@ import bonsai.tool as tool
 import ifcopenshell.util.file
 from bonsai.bim.ifc import IfcStore
 from pathlib import Path
+from collections import defaultdict
 from typing import Union
 
 
@@ -40,9 +41,10 @@ class ProjectData:
         cls.data = {
             "export_schema": cls.get_export_schema(),
             "library_file": cls.library_file(),
-            "template_file": cls.template_file(),
             "last_saved": cls.last_saved(),
         }
+        # After export_schema.
+        cls.data["template_file"] = cls.template_file()
         cls.is_loaded = True
 
     @classmethod
@@ -77,11 +79,20 @@ class ProjectData:
         return results
 
     @classmethod
-    def template_file(cls):
-        files = os.listdir(os.path.join(bpy.context.scene.BIMProperties.data_dir, "templates", "projects"))
-        results = [("0", "Blank Project", "")]
-        results.extend([(f, os.path.splitext(f)[0], "") for f in files if ".ifc" in f])
-        return results
+    def template_file(cls) -> dict[str, list[tuple[str, str, str]]]:
+        template_files: dict[str, list[tuple[str, str, str]]] = defaultdict(list)
+        for export_schema in cls.data["export_schema"]:
+            template_files[export_schema[0]].append(("0", "Blank Project", ""))
+
+        files = (Path(bpy.context.scene.BIMProperties.data_dir) / "templates" / "projects").iterdir()
+        for f in files:
+            if not f.suffix.lower().startswith(".ifc"):
+                continue
+            current_schema = cls.get_file_schema(f)
+            if current_schema not in template_files:
+                continue
+            template_files[current_schema].append((f.name, f.stem, "Template"))
+        return template_files
 
     @classmethod
     def last_saved(cls):

src/bonsai/bonsai/bim/module/project/prop.py

@@ -41,10 +41,15 @@ def get_export_schema(self: "BIMProjectProperties", context: bpy.types.Context)
     return ProjectData.data["export_schema"]
 
 
+def update_export_schema(self: "BIMProjectProperties", context: bpy.types.Context) -> None:
+    # Avoid breaking empty enum.
+    self["template_file"] = 0
+
+
 def get_template_file(self: "BIMProjectProperties", context: bpy.types.Context) -> list[tuple[str, str, str]]:
     if not ProjectData.is_loaded:
         ProjectData.load()
-    return ProjectData.data["template_file"]
+    return ProjectData.data["template_file"][self.export_schema]
 
 
 def get_library_file(self: "BIMProjectProperties", context: bpy.types.Context) -> list[tuple[str, str, str]]:
@@ -201,7 +206,7 @@ class BIMProjectProperties(PropertyGroup):
     )
     links: CollectionProperty(name="Links", type=Link)
     active_link_index: IntProperty(name="Active Link Index")
-    export_schema: EnumProperty(items=get_export_schema, name="IFC Schema")
+    export_schema: EnumProperty(items=get_export_schema, name="IFC Schema", update=update_export_schema)
     template_file: EnumProperty(items=get_template_file, name="Template File")
     library_file: EnumProperty(items=get_library_file, name="Library File", update=update_library_file)
     use_relative_project_path: BoolProperty(name="Use Relative Project Path", default=False)