import unittest

import geopandas as gpd
from shapely.geometry import LineString, Point

from context import measprocess as mpc


class TestOSMAPI(unittest.TestCase):
    def setUp(self):
        self._coords = [
            (48.201914, 16.363859),
            (48.194170, 16.385466)
        ]

        self._measurement_coords_not_set = gpd.GeoSeries(
            (Point(lon, lat) for lat, lon in self._coords)
        )

        self._measurement_coords_set = gpd.GeoSeries(
            (Point(lon, lat) for lat, lon in self._coords)
        ).set_crs("EPSG:4326")

    def test_basic_API(self):
        street_series = mpc.geospatial.get_geoseries_streets(
            self._measurement_coords_set
        )

        blockage_series = mpc.geospatial.get_geoseries_blockages(
            self._measurement_coords_set
        )

        self.assertTrue(
            "EPSG:4326" == street_series.crs
        )

        self.assertTrue(
            "EPSG:4326" == blockage_series.crs
        )

    def test_raise_error_if_crs_not_set(self):

        with self.assertRaises(ValueError):
            mpc.geospatial.get_geoseries_blockages(
                self._measurement_coords_not_set
            )

            mpc.geospatial.get_geoseries_streets(
                self._measurement_coords_not_set
            )

    def test_output_coordinates_streets(self):

        street_series = mpc.geospatial.get_geoseries_streets(
            self._measurement_coords_set
        )

        street_series = street_series.to_crs("EPSG:31287")
        projected = self._measurement_coords_set.to_crs("EPSG:31287")

        self.assertTrue(
            street_series.distance(projected[0]).mean() < 1000
        )

    def test_output_coordinates_blockages(self):

        blockage_series = mpc.geospatial.get_geoseries_blockages(
            self._measurement_coords_set
        )

        blockage_series = blockage_series.to_crs("EPSG:31287")
        projected = self._measurement_coords_set.to_crs("EPSG:31287")

        self.assertTrue(
            blockage_series.distance(projected[0]).mean() < 1000
        )

if __name__ == '__main__':
    unittest.main()