import math from searx.data import EXTERNAL_URLS IMDB_PREFIX_TO_URL_ID = { 'tt': 'imdb_title', 'mn': 'imdb_name', 'ch': 'imdb_character', 'co': 'imdb_company', 'ev': 'imdb_event' } def get_imdb_url_id(imdb_item_id): id_prefix = imdb_item_id[:2] return IMDB_PREFIX_TO_URL_ID.get(id_prefix) def get_external_url(url_id, item_id, alternative="default"): """Return an external URL or None if url_id is not found. url_id can take value from data/external_urls.json The "imdb_id" value is automaticaly converted according to the item_id value. If item_id is None, the raw URL with the $1 is returned. """ if url_id == 'imdb_id' and item_id is not None: url_id = get_imdb_url_id(item_id) url_description = EXTERNAL_URLS.get(url_id) if url_description: url_template = url_description["urls"].get(alternative) if url_template is not None: if item_id is not None: return url_template.replace('$1', item_id) else: return url_template return None def get_earth_coordinates_url(latitude, longitude, osm_zoom, alternative='default'): url = get_external_url('map', None, alternative)\ .replace('${latitude}', str(latitude))\ .replace('${longitude}', str(longitude))\ .replace('${zoom}', str(osm_zoom)) return url def area_to_osm_zoom(area): """Convert an area in km² into an OSM zoom. Less reliable if the shape is not round. logarithm regression using these data: * 9596961 -> 4 (China) * 3287263 -> 5 (India) * 643801 -> 6 (France) * 6028 -> 9 * 1214 -> 10 * 891 -> 12 * 12 -> 13 In WolframAlpha: >>> log fit {9596961,15},{3287263, 14},{643801,13},{6028,10},{1214,9},{891,7},{12,6} with 15 = 19-4 (China); 14 = 19-5 (India) and so on Args: area (int,float,str): area in km² Returns: int: OSM zoom or 19 in area is not a number """ try: amount = float(area) return max(0, min(19, round(19 - 0.688297 * math.log(226.878 * amount)))) except ValueError: return 19