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# -*- coding: utf-8 -*-
import requests
import datetime
from bs4 import BeautifulSoup
from bvggrabber.api import QueryApi, Departure
SCHEDULED_QUERY_API_ENDPOINT = 'http://mobil.bvg.de/Fahrinfo/bin/stboard.bin/dox'
class Vehicle():
S = 1
U = 2
TRAM = 4
BUS = 8
FERRY = 16
RB = 32
IC = 64
_ALL = 127
class ScheduledDepartureQueryApi(QueryApi):
def __init__(self, station, vehicles=Vehicle._ALL, limit=5):
super(ScheduledDepartureQueryApi, self).__init__()
if isinstance(station, str):
self.station_enc = station.encode('iso-8859-1')
elif isinstance(station, bytes):
self.station_enc = station
else:
raise ValueError("Invalid type for station")
self.station = station
self.vehicles = bin(vehicles)[2:]
self.limit = limit
def call(self):
params = {'input': self.station_enc, 'time': datetime.datetime.now().strftime('%H:%M'), 'date': datetime.datetime.now().strftime('%d.%m.%Y'),'productsFilter': self.vehicles, 'maxJourneys': self.limit, 'start': 'yes'}
response = requests.get(SCHEDULED_QUERY_API_ENDPOINT, params=params)
if response.status_code == requests.codes.ok:
soup = BeautifulSoup(response.text)
if soup.find('span', 'error'):
# The station we are looking for is ambiguous or does not exist
stations = soup.find('span', 'select').find_all('a')
if stations:
# The station is ambiguous
stationlist = [s.text.strip() for s in stations]
return (False, stationlist)
else:
# The station does not exist
return (False, [])
else:
# The station seems to exist
tbody = soup.find('tbody')
if tbody is None:
return (False, [])
rows = tbody.find_all('tr')
departures = []
for row in rows:
tds = row.find_all('td')
dep = Departure(start=self.station_enc,
end=tds[2].text.strip(),
when=tds[0].text.strip(),
line=tds[1].text.strip())
departures.append(dep)
return (True, departures)
else:
response.raise_for_status()
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