#!/usr/bin/python3
import argparse
import sys
from typing import TextIO

import geojson

import wrpylib.wrmwmarkup
from wrpylib.argparse_tools import bool_type
from wrpylib.wrgeojson import join_wrgeojson_ways, simplify_ways


def wrmap_to_wrgeojson(input: TextIO, output: TextIO, join_ways: bool, simplify: bool):
    """Converts geojson to wrmap

    :param input: input geojson file
    :param output: output geojson file
    :param join_ways: joins subsequent ways of same type
    :param simplify: true to simplify ways
    """
    wr_geojson = geojson.load(input)
    if not wr_geojson.is_valid:
        raise ValueError(f'Invalid GeoJSON: {wr_geojson.errors()}')

    # Merge sledrun ways of the same type
    if join_ways:
        join_wrgeojson_ways(wr_geojson)

    # Simplify the sledrunMap
    if simplify:
        simplify_ways(wr_geojson)

    # Print result
    print(wrpylib.wrmwmarkup.create_wrmap(wr_geojson), file=output)
    print('{{Landkarte Legende}}<br/>{{GoogleMaps Hinweis}}')
    print()


def main():
    parser = argparse.ArgumentParser(description='Converts wrmap to wrgeojson format.'
                                                 'Reads from stdin, writes to stdout.')
    parser.add_argument('--join-ways', type=bool_type, default=True,
                        help='joins subsequent ways of same type (default: True)')
    parser.add_argument('--simplify', type=bool_type, default=False,
                        help='simplify the map (reduce number of points in paths) (default: False)')
    args = parser.parse_args()

    wrmap_to_wrgeojson(sys.stdin, sys.stdout, args.join_ways, args.simplify)


if __name__ == '__main__':
    main()