# Bonsai - OpenBIM Blender Add-on
# Copyright (C) 2021 Dion Moult <dion@thinkmoult.com>
#
# This file is part of Bonsai.
#
# Bonsai is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Bonsai 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.

import bpy
import ifcopenshell
import bonsai.core.tool
import bonsai.tool as tool
from bonsai.tool.spatial import Spatial as subject
from test.bim.bootstrap import NewFile
from mathutils import Matrix


class TestImplementsTool(NewFile):
    def test_run(self):
        assert isinstance(subject(), bonsai.core.tool.Spatial)


class TestCanContain(NewFile):
    def test_a_spatial_structure_element_can_contain_an_element(self):
        ifc = ifcopenshell.file()
        tool.Ifc.set(ifc)
        structure = ifc.createIfcSite()
        structure_obj = bpy.data.objects.new("Object", None)
        tool.Ifc.link(structure, structure_obj)
        element = ifc.createIfcWall()
        element_obj = bpy.data.objects.new("Object", None)
        tool.Ifc.link(element, element_obj)
        assert subject.can_contain(structure, element_obj) is True

    def test_a_spatial_structure_element_can_contain_an_element_ifc2x3(self):
        ifc = ifcopenshell.file(schema="IFC2X3")
        tool.Ifc.set(ifc)
        structure = ifc.createIfcSite()
        structure_obj = bpy.data.objects.new("Object", None)
        tool.Ifc.link(structure, structure_obj)
        element = ifc.createIfcWall()
        element_obj = bpy.data.objects.new("Object", None)
        tool.Ifc.link(element, element_obj)
        assert subject.can_contain(structure, element_obj) is True

    def test_a_spatial_zone_element_cannot_contain_an_element(self):
        ifc = ifcopenshell.file()
        tool.Ifc.set(ifc)
        structure = ifc.createIfcSpatialZone()
        structure_obj = bpy.data.objects.new("Object", None)
        tool.Ifc.link(structure, structure_obj)
        element = ifc.createIfcWall()
        element_obj = bpy.data.objects.new("Object", None)
        tool.Ifc.link(element, element_obj)
        assert subject.can_contain(structure, element_obj) is False

    def test_unlinked_elements_cannot_contain_anything(self):
        structure_obj = bpy.data.objects.new("Object", None)
        element_obj = bpy.data.objects.new("Object", None)
        assert subject.can_contain(structure_obj, element_obj) is False

    def test_a_non_spatial_element_cannot_contain_anything(self):
        ifc = ifcopenshell.file()
        tool.Ifc.set(ifc)
        structure = ifc.createIfcWall()
        structure_obj = bpy.data.objects.new("Object", None)
        tool.Ifc.link(structure, structure_obj)
        element = ifc.createIfcWall()
        element_obj = bpy.data.objects.new("Object", None)
        tool.Ifc.link(element, element_obj)
        assert subject.can_contain(structure, element_obj) is False

    def test_a_non_element_cannot_be_contained(self):
        ifc = ifcopenshell.file()
        tool.Ifc.set(ifc)
        structure = ifc.createIfcSite()
        structure_obj = bpy.data.objects.new("Object", None)
        tool.Ifc.link(structure, structure_obj)
        element = ifc.createIfcTask()
        element_obj = bpy.data.objects.new("Object", None)
        tool.Ifc.link(element, element_obj)
        assert subject.can_contain(structure, element_obj) is False

    def test_other_non_elements_that_have_a_contained_in_structure_attribute_can_be_contained(self):
        ifc = ifcopenshell.file()
        tool.Ifc.set(ifc)
        structure = ifc.createIfcSite()
        structure_obj = bpy.data.objects.new("Object", None)
        tool.Ifc.link(structure, structure_obj)
        element = ifc.createIfcGrid()
        element_obj = bpy.data.objects.new("Object", None)
        tool.Ifc.link(element, element_obj)
        assert subject.can_contain(structure, element_obj) is True


class TestCanReference(NewFile):
    def test_an_element_can_reference_a_spatial_element(self):
        ifc = ifcopenshell.file()
        assert subject.can_reference(ifc.createIfcSite(), ifc.createIfcWall()) is True

    def test_an_element_can_reference_a_spatial_element_ifc2x3(self):
        ifc = ifcopenshell.file(schema="IFC2X3")
        tool.Ifc.set(ifc)
        assert subject.can_reference(ifc.createIfcSite(), ifc.createIfcWall()) is True

    def test_a_non_spatial_element_cannot_reference_anything(self):
        ifc = ifcopenshell.file()
        assert subject.can_reference(ifc.createIfcWall(), ifc.createIfcWall()) is False

    def test_a_non_element_cannot_reference_anything(self):
        ifc = ifcopenshell.file()
        assert subject.can_reference(ifc.createIfcSite(), ifc.createIfcTask()) is False


class TestDisableEditing(NewFile):
    def test_run(self):
        obj = bpy.data.objects.new("Object", None)
        subject.enable_editing(obj)
        subject.disable_editing(obj)
        assert obj.BIMObjectSpatialProperties.is_editing is False


class TestDuplicateObjectAndData(NewFile):
    def test_run(self):
        obj = bpy.data.objects.new("Object", bpy.data.meshes.new("Mesh"))
        new_obj = subject.duplicate_object_and_data(obj)
        assert new_obj != obj
        assert new_obj.data != obj.data
        obj = bpy.data.objects.new("Object", None)
        new_obj = subject.duplicate_object_and_data(obj)
        assert new_obj != obj
        assert new_obj.data is None


class TestEnableEditing(NewFile):
    def test_run(self):
        obj = bpy.data.objects.new("Object", None)
        subject.enable_editing(obj)
        assert obj.BIMObjectSpatialProperties.is_editing is True


class TestGetContainer(NewFile):
    def test_run(self):
        ifc = ifcopenshell.file()
        site = ifc.createIfcSite()
        wall = ifc.createIfcWall()
        ifcopenshell.api.run("spatial.assign_container", ifc, products=[wall], relating_structure=site)
        assert subject.get_container(wall) == site


class TestGetDecomposedElements(NewFile):
    def test_run(self):
        ifc = ifcopenshell.file()
        site = ifc.createIfcSite()
        wall = ifc.createIfcWall()
        ifcopenshell.api.run("spatial.assign_container", ifc, products=[wall], relating_structure=site)
        assert subject.get_decomposed_elements(site) == {wall}


class TestGetObjectMatrix(NewFile):
    def test_run(self):
        obj = bpy.data.objects.new("Object", None)
        assert subject.get_object_matrix(obj) == obj.matrix_world


class TestGetRelativeObjectMatrix(NewFile):
    def test_run(self):
        obj = bpy.data.objects.new("Object", None)
        relative_obj = bpy.data.objects.new("Object", None)
        relative_obj.matrix_world[0][3] = 1
        assert subject.get_relative_object_matrix(obj, relative_obj)[0][3] == -1


class TestRunRootCopyClass(NewFile):
    def test_nothing(self):
        pass


class TestRunSpatialAssignContainer(NewFile):
    def test_nothing(self):
        pass


class TestSelectObject(NewFile):
    def test_run(self):
        obj = bpy.data.objects.new("Object", None)
        bpy.context.scene.collection.objects.link(obj)
        subject.select_object(obj)
        assert obj in bpy.context.selected_objects


class TestSetActiveObject(NewFile):
    def test_run(self):
        obj = bpy.data.objects.new("Object", None)
        bpy.context.scene.collection.objects.link(obj)
        subject.set_active_object(obj)
        assert bpy.context.view_layer.objects.active == obj
        assert obj in bpy.context.selected_objects


class TestSetRelativeObjectMatrix(NewFile):
    def test_run(self):
        obj = bpy.data.objects.new("Object", None)
        relative_obj = bpy.data.objects.new("Object", None)
        relative_obj.matrix_world[0][3] = 1
        matrix = Matrix()
        matrix[0][3] = 1
        subject.set_relative_object_matrix(obj, relative_obj, matrix)
        assert obj.matrix_world[0][3] == 2


class TestSelectProducts(NewFile):
    def test_select_products(self):
        ifc = ifcopenshell.file()
        tool.Ifc.set(ifc)
        product = ifcopenshell.api.run("root.create_entity", ifc, ifc_class="IfcWall")
        obj = bpy.data.objects.new("Object", None)
        bpy.context.scene.collection.objects.link(obj)
        tool.Ifc.link(product, obj)
        subject.select_products([product])
        assert obj in bpy.context.selected_objects