#!/usr/bin/env python3
# -*- coding: UTF-8 -*-

from owslib.wfs import WebFeatureService

def get_wfs(url, layer, bbox=None):
  from geopandas import read_file
  from requests import Request
  wfs = WebFeatureService(url=url)
  item = dict(wfs.items())[layer]
  crs = item.crsOptions[0].getcode()
  params = dict(service='WFS', version=wfs.version, request='GetFeature',
    typeName=layer)
  q = Request('GET', url, params=params).prepare().url
  data = read_file(q, bbox=bbox)
  data.set_crs(crs=crs, inplace=True)
  if crs != 'EPSG:2154':
    data.to_crs(epsg=2154, inplace=True)
  return data

def list_layer(url):
  wfs = WebFeatureService(url=url)
  lst = list(wfs.contents)
  return lst