# IfcOpenShell - IFC toolkit and geometry engine
# Copyright (C) 2025 Thomas Krijnen <thomas@aecgeeks.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/>.

from ifcopenshell import entity_instance


def get_alignment_layout_nest(alignment: entity_instance) -> entity_instance:
    """
    Searches for the IfcRelNest that contains IfcAlignmentHorizontal, IfcAlignmentVertical, or IfcAlignmentCant

    :param alignment: the alignment
    :return: Returns the IfcRelNests containing the alignment layout
    """
    layout_types = ["IfcAlignmentHorizontal", "IfcAlignmentVertical", "IfcAlignmentCant"]

    for nest in alignment.IsNestedBy:
        for related_object in nest.RelatedObjects:
            if related_object.is_a() in layout_types:
                return nest

    return None