#  Copyright (c) 2020, Manfred Moitzi
#  License: MIT License
import pytest
from ezdxf.entities import factory
from ezdxf.render.forms import square, translate
from ezdxf.lldxf import const
from ezdxf.addons import geo

shapely_geometry = pytest.importorskip('shapely.geometry')


def test_shapely_geo_interface():
    point = shapely_geometry.shape({
        'type': 'Point',
        'coordinates': (0, 0),
    })
    assert (point.x, point.y) == (0, 0)


def validate(geo_proxy: geo.GeoProxy) -> bool:
    return shapely_geometry.shape(geo_proxy).is_valid


def test_resolved_hatch_with_intersecting_holes():
    hatch = factory.new('HATCH')
    paths = hatch.paths
    paths.add_polyline_path(square(10),
                            flags=const.BOUNDARY_PATH_EXTERNAL)
    paths.add_polyline_path(translate(square(3), (1, 1)),
                            flags=const.BOUNDARY_PATH_DEFAULT)
    paths.add_polyline_path(translate(square(3), (2, 2)),
                            flags=const.BOUNDARY_PATH_DEFAULT)
    p = geo.proxy(hatch)
    # Overlapping holes already resolved by fast_bbox_detection()
    polygon = shapely_geometry.shape(p)
    assert polygon.is_valid is True

    p.filter(validate)
    assert p.root['type'] == 'Polygon'
    assert len(p.root['coordinates']) == 2


def test_valid_hatch():
    hatch = factory.new('HATCH')
    paths = hatch.paths
    paths.add_polyline_path(square(10),
                            flags=const.BOUNDARY_PATH_EXTERNAL)
    paths.add_polyline_path(translate(square(3), (1, 1)),
                            flags=const.BOUNDARY_PATH_DEFAULT)
    paths.add_polyline_path(translate(square(3), (5, 1)),
                            flags=const.BOUNDARY_PATH_DEFAULT)
    p = geo.proxy(hatch)
    polygon = shapely_geometry.shape(p)
    assert polygon.is_valid is True

    p.filter(validate)
    assert p.root != {}


if __name__ == '__main__':
    pytest.main([__file__])
