import numpy as np

import pytest

from bcf.v3.bcfxml import BcfXml

def test_create_clash_set_bcf() -> None:

bcfxml = BcfXml.create_new("Clash Test")

topic = bcfxml.add_topic("Test", "Test topic", "IfcClash")

topic.add_viewpoint_from_point_and_guids(

np.array([10, 10, 10]),

"firstId",

"secondId",

)

assert len(topic.viewpoints) == 1

guid, vi_handler = next((k, v) for k, v in topic.viewpoints.items())

v_info = vi_handler.visualization_info

assert f"{v_info.guid}.bcfv" == guid

components = v_info.components.selection.component

assert {c.ifc_guid for c in components} == {"firstId", "secondId"}

camera = v_info.perspective_camera

viewpoint = camera.camera_view_point

assert viewpoint.x == 15

assert viewpoint.y == 15

assert viewpoint.z == 15

# default direction is the unit vector of -1, -1, -1

direction = camera.camera_direction

assert direction.x == pytest.approx(-1 / 3**0.5)

assert direction.y == pytest.approx(-1 / 3**0.5)

assert direction.z == pytest.approx(-1 / 3**0.5)

# default

up_vector = camera.camera_up_vector

assert up_vector.x == pytest.approx(-1 / 6**0.5)

assert up_vector.y == pytest.approx(-1 / 6**0.5)

assert up_vector.z == pytest.approx(1 / 1.5**0.5)

assert camera.field_of_view == 60