# IfcOpenShell - IFC toolkit and geometry engine
# Copyright (C) 2021-2022 Dion Moult <dion@thinkmoult.com>, Yassine Oualid <yassine@sigmadimensions.com>
#
# This file is part of IfcOpenShell.
#
# IfcOpenShell is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# IfcOpenShell is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with IfcOpenShell.  If not, see <http://www.gnu.org/licenses/>.

import ifcopenshell
import ifcopenshell.api
import ifcopenshell.util.element


def change_nest(file, item=None, new_parent=None) -> None:
    """Assigns a cost item to a new parent cost item"""
    settings = {"item": item, "new_parent": new_parent}

    if not settings["item"].Nests:
        return
    nests = settings["item"].Nests[0]
    related_objects = list(nests.RelatedObjects)
    related_objects.remove(settings["item"])
    if related_objects:
        nests.RelatedObjects = related_objects
        ifcopenshell.api.run("owner.update_owner_history", file, **{"element": nests})
    else:
        history = nests.OwnerHistory
        file.remove(nests)
        if history:
            ifcopenshell.util.element.remove_deep2(file, history)
    ifcopenshell.api.run(
        "nest.assign_object",
        file,
        related_objects=[settings["item"]],
        relating_object=settings["new_parent"],
    )