import argparse

from wrpylib.wrdem import MultiDem
from wrpylib.wrvalidators import lonlat_from_str, LonLat, lonlat_to_str


def main(lon_lat: LonLat):
    """Coordinate like "47.275712 N 11.3456496 E"."""
    dem = MultiDem()
    ele, source = dem.get_ele(lon_lat)
    if ele is None:
        print(f'No elevation data available for {lonlat_to_str(lon_lat)}')
    else:
        print(f'Elevation for {lonlat_to_str(lon_lat)}: {ele:.0f} m (source: {source})')


if __name__ == '__main__':
    parser = argparse.ArgumentParser('Get most accurate elevation for a given point')
    parser.add_argument('coordinate', type=lonlat_from_str, help='coordinate like "47.275712 N 11.3456496 E"')
    args = parser.parse_args()
    main(args.coordinate)