## Photon (Map)
#
# @website     https://photon.komoot.de
# @provide-api yes (https://photon.komoot.de/)
#
# @using-api   yes
# @results     JSON
# @stable      yes
# @parse       url, title

from urllib import urlencode
from json import loads
from searx.utils import searx_useragent

# engine dependent config
categories = ['map']
paging = False
language_support = True
number_of_results = 10

# search-url
search_url = 'https://photon.komoot.de/api/?{query}&limit={limit}'
result_base_url = 'https://openstreetmap.org/{osm_type}/{osm_id}'


# do search-request
def request(query, params):
    params['url'] = search_url.format(query=urlencode({'q': query}),
                                      limit=number_of_results)

    if params['language'] != 'all':
        params['url'] = params['url'] + "&lang=" + params['language'].replace('_', '-')

    # using searx User-Agent
    params['headers']['User-Agent'] = searx_useragent()
    
    # FIX: SSLError: [Errno 1] _ssl.c:510: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
    params['verify'] = False

    return params


# get response from search-request
def response(resp):
    results = []
    json = loads(resp.text)

    # parse results
    for r in json.get('features', {}):
    
        properties = r.get('properties')
        
        if not properties:
            continue
        
        # get title
        title = properties['name']
        
        # get osm-type
        if properties.get('osm_type') == 'N':
            osm_type = 'node'
        elif properties.get('osm_type') == 'W':
            osm_type = 'way'
        elif properties.get('osm_type') == 'R':
            osm_type = 'relation'
        else:
            # continue if invalide osm-type
            continue
            
        url = result_base_url.format(osm_type=osm_type,
                                     osm_id=properties.get('osm_id'))

        osm = {'type': osm_type,
               'id': properties.get('osm_id')}

        geojson = r.get('geometry')
        
        if  properties.get('extent'):
            boundingbox = [properties.get('extent')[3], properties.get('extent')[1], properties.get('extent')[0], properties.get('extent')[2]]
        else:
            # TODO: better boundingbox calculation
            boundingbox = [geojson['coordinates'][1], geojson['coordinates'][1], geojson['coordinates'][0], geojson['coordinates'][0]]
        
        # TODO: address calculation
        address = {}

        # get name
        if properties.get('osm_key') == 'amenity' or\
           properties.get('osm_key') == 'shop' or\
           properties.get('osm_key') == 'tourism' or\
           properties.get('osm_key') == 'leisure':
            address = {'name': properties.get('name')}
                
        # add rest of adressdata, if something is already found
        if address.get('name'):
            address.update({'house_number': properties.get('housenumber'),
                           'road': properties.get('street'),
                           'locality': properties.get('city',
                                       properties.get('town',
                                       properties.get('village'))),
                           'postcode': properties.get('postcode'),
                           'country': properties.get('country')})
        else:
            address = None

        # append result
        results.append({'template': 'map.html',
                        'title': title,
                        'content': '',
                        'longitude': geojson['coordinates'][0],
                        'latitude': geojson['coordinates'][1],
                        'boundingbox': boundingbox,
                        'geojson': geojson,
                        'address': address,
                        'osm': osm,
                        'url': url})

        print r['properties']['name']

    # return results
    return results