# 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/>.

import pytest
import ifcopenshell.api.alignment
import ifcopenshell.api.context
import ifcopenshell.api.unit


def test_create():
    file = ifcopenshell.file(schema="IFC4X3_ADD2")
    project = file.createIfcProject(GlobalId=ifcopenshell.guid.new(), Name="Test")
    length = ifcopenshell.api.unit.add_si_unit(file, unit_type="LENGTHUNIT")
    ifcopenshell.api.unit.assign_unit(file, units=[length])
    geometric_representation_context = ifcopenshell.api.context.add_context(file, context_type="Model")
    axis_model_representation_subcontext = ifcopenshell.api.context.add_context(
        file,
        context_type="Model",
        context_identifier="Axis",
        target_view="MODEL_VIEW",
        parent=geometric_representation_context,
    )

    include_vertical = [False, True, True]
    include_cant = [False, False, True]
    expected_curve_type = ["IfcCompositeCurve", "IfcGradientCurve", "IfcSegmentedReferenceCurve"]

    for i in range(0, 3):
        ali = ifcopenshell.api.alignment.create(file, "A1", include_vertical[i], include_cant[i])
        assert ali != None

        # verify the geometric representation was created
        curve = ifcopenshell.api.alignment.get_curve(ali)
        assert curve.is_a() == expected_curve_type[i]
        assert len(curve.Segments) == 1

        horiz = ifcopenshell.api.alignment.get_horizontal_layout(ali)
        vert = ifcopenshell.api.alignment.get_vertical_layout(ali)
        cant = ifcopenshell.api.alignment.get_cant_layout(ali)

        assert horiz != None
        if include_vertical[i]:
            assert vert != None

        if include_cant[i]:
            assert cant != None

        # verify each layout has a zero length segment (which also tests if the geometry curve has a zero length segment)
        layouts = [horiz, vert, cant]
        for layout in layouts:
            if layout != None:
                segments = ifcopenshell.api.alignment.get_layout_segments(layout)
                assert len(segments) == 1
                assert ifcopenshell.api.alignment.has_zero_length_segment(layout)
                curve = ifcopenshell.api.alignment.get_layout_curve(layout)
                assert ifcopenshell.api.alignment.has_zero_length_segment(curve)

        curves = file.by_type("IfcCompositeCurve")
        for curve in curves:
            assert ifcopenshell.api.alignment.has_zero_length_segment(curve)

        curves = file.by_type("IfcGradientCurve")
        for curve in curves:
            assert ifcopenshell.api.alignment.has_zero_length_segment(curve)

        curves = file.by_type("IfcSegmentedReferenceCurve")
        for curve in curves:
            assert ifcopenshell.api.alignment.has_zero_length_segment(curve)

test_create()