# This file was generated with the assistance of an AI coding tool.
import ifcopenshell
import ifcopenshell.api.aggregate
import ifcopenshell.api.owner.settings
import ifcopenshell.api.project
import ifcopenshell.api.root
import ifcopenshell.api.spatial
import ifcopenshell.api.unit
import pytest


@pytest.fixture
def model():
    """Create an IFC4 model with a spatial hierarchy and a wall."""
    f = ifcopenshell.api.project.create_file()
    ifcopenshell.api.owner.settings.get_user = lambda ifc: (ifc.by_type("IfcPersonAndOrganization") or [None])[0]
    ifcopenshell.api.owner.settings.get_application = lambda ifc: (ifc.by_type("IfcApplication") or [None])[0]

    project = ifcopenshell.api.root.create_entity(f, ifc_class="IfcProject", name="TestProject")
    ifcopenshell.api.unit.assign_unit(f)

    site = ifcopenshell.api.root.create_entity(f, ifc_class="IfcSite", name="TestSite")
    building = ifcopenshell.api.root.create_entity(f, ifc_class="IfcBuilding", name="TestBuilding")
    storey = ifcopenshell.api.root.create_entity(f, ifc_class="IfcBuildingStorey", name="Ground Floor")

    ifcopenshell.api.aggregate.assign_object(f, products=[site], relating_object=project)
    ifcopenshell.api.aggregate.assign_object(f, products=[building], relating_object=site)
    ifcopenshell.api.aggregate.assign_object(f, products=[storey], relating_object=building)

    wall = ifcopenshell.api.root.create_entity(f, ifc_class="IfcWall", name="Wall001")
    ifcopenshell.api.spatial.assign_container(f, products=[wall], relating_structure=storey)

    slab = ifcopenshell.api.root.create_entity(f, ifc_class="IfcSlab", name="Slab001")
    ifcopenshell.api.spatial.assign_container(f, products=[slab], relating_structure=storey)

    return f