diff options
Diffstat (limited to 'ptv.py')
| -rwxr-xr-x | ptv.py | 128 |
1 files changed, 13 insertions, 115 deletions
@@ -1,126 +1,24 @@ #!/usr/bin/python -# Copyright (C) 2022 Yuchen Pei. -# -# ptv.py is free software: you can redistribute it and/or modify it -# under the terms of the GNU Affero General Public License as -# published by the Free Software Foundation, either version 3 of the -# License, or (at your option) any later version. - -# ptv.py is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# Affero General Public License for more details. - -# You should have received a copy of the GNU Affero General Public -# License along with ptv.py. If not, see -# <https://www.gnu.org/licenses/>. - -# PTV (Public Transport Victoria) timetable cli query tool - -from hashlib import sha1 -from urllib import request, error, parse -from datetime import datetime, timezone -from zoneinfo import ZoneInfo -import hmac -import json -import pprint -import itertools -import os - -_ROUTE_TYPE = ["Train", "Tram", "Bus", "Vline", "Night Bus"] - -def get_url(request): - key = str.encode(os.environ.get('PTVKEY')) - dev_id = os.environ.get('PTVID') - request = parse.quote(request) + ('&' if ('?' in request) else '?') - raw = request + f'devid={dev_id}' - hashed = hmac.new(key, raw.encode('utf-8'), sha1) - signature = hashed.hexdigest().upper() - return f'http://timetableapi.ptv.vic.gov.au{raw}&signature={signature}' - -def get_json(url): - try: - document = request.urlopen(url).read().decode() - except error.HTTPError: - print("http error!") - return - return json.loads(document) - -def get_stops(search_result): - return [{'routes': stop['routes'], - 'stop_name': stop['stop_name'], - 'stop_id': stop['stop_id']} for stop in search_result(stops)] - -def get_stop_and_routes(search_result): - return itertools.chain.from_iterable( - [[(stop, route) for route in stop['routes']] - for stop in search_result['stops']]) - -def search(keyword): - return get_json(get_url(f'/v3/search/{keyword}')) - -def format_stop_and_route_name(stop_and_route): - stop, route = stop_and_route - return 'Stop: {}, Route: {} {} {}'.format( - stop['stop_name'], _ROUTE_TYPE[route['route_type']], - route['route_number'], route['route_name']) - -def format_stop_and_route_names(stop_and_routes): - return '\n'.join(f'[{i}] {result}' for i, result in enumerate( - map(format_stop_and_route_name, stop_and_routes))) - return '\n'.join(f'[{i}] {result}' for i, result in enumerate( - [format_stop_and_route_name( - stop['stop_name'], _ROUTE_TYPE[route['route_type']], - route['route_number'], route['route_name']) - for stop, route in stop_and_routes])) - -def get_departures(stop, route): - return get_json(get_url( - '/v3/departures/route_type/{}/stop/{}/route/{}'.format( - route['route_type'], stop['stop_id'], - route['route_id']))) - -def parse_time(maybe_time): - if maybe_time: - return datetime.fromisoformat(maybe_time[:-1] + '+00:00') - -def format_time(maybe_time): - if maybe_time: - return str(maybe_time.astimezone( - ZoneInfo('Australia/Melbourne')))[:-6] - -def filter_departures(departures): - return [dep for dep in departures - if dep['scheduled_departure_utc'] and - parse_time(dep['scheduled_departure_utc']) > - datetime.now().astimezone(timezone.utc)] - -def get_directions(route_id): - return get_json(get_url(f'/v3/directions/route/{route_id}')) - -def get_direction_names(route_id): - return {dir['direction_id']: dir['direction_name'] for dir in - get_directions(route_id)['directions']} - -def format_departures(departures, direction_names): - return '\n'.join(['estimated: {}; scheduled: {}; direction: {}'.format( - format_time(parse_time(dep['estimated_departure_utc'])), - format_time(parse_time(dep['scheduled_departure_utc'])), - direction_names[dep['direction_id']]) - for dep in filter_departures(departures['departures'])]) +import ptv_client +import cli_view +import util def main(): - stop_and_routes = list(get_stop_and_routes(search(input('Query: ')))) + stop_and_routes = list( + ptv_client.get_stop_and_routes(ptv_client.search(input('Query: ')))) if not stop_and_routes: print("No results") return - print(format_stop_and_route_names(stop_and_routes)) + print(cli_view.format_stop_and_route_names(stop_and_routes)) idx = int(input('Choose a number: ')) - print(format_stop_and_route_name(stop_and_routes[idx])) - print(format_departures( - get_departures(*stop_and_routes[idx]), - get_direction_names(stop_and_routes[idx][1]['route_id']))) + print(cli_view.format_stop_and_route_name(stop_and_routes[idx])) + departures = ptv_client.get_departures_from_stop_and_route( + *stop_and_routes[idx]) + filtered_deps = util.filter_departures(departures['departures']) + print(cli_view.format_departures( + filtered_deps, + ptv_client.get_direction_names(stop_and_routes[idx][1]['route_id']))) if __name__ == "__main__": main() |