trainvel/sncfgtfs/management/commands/update_sncf_gtfs_rt.py

223 lines
13 KiB
Python

from datetime import timedelta, datetime, date, time
from zoneinfo import ZoneInfo
import requests
from django.core.management import BaseCommand
from django.db.models import Q, Max
from sncfgtfs.gtfs_realtime_pb2 import FeedMessage
from sncfgtfs.models import Calendar, CalendarDate, StopTime, StopTimeUpdate, Trip, TripUpdate, Stop
class Command(BaseCommand):
help = "Update the SNCF GTFS Realtime database."
GTFS_RT_FEEDS = {
"TGV": "https://proxy.transport.data.gouv.fr/resource/sncf-tgv-gtfs-rt-trip-updates",
"IC": "https://proxy.transport.data.gouv.fr/resource/sncf-ic-gtfs-rt-trip-updates",
"TER": "https://proxy.transport.data.gouv.fr/resource/sncf-ter-gtfs-rt-trip-updates",
}
def add_arguments(self, parser):
pass
def handle(self, *args, **options):
for feed_type, feed_url in self.GTFS_RT_FEEDS.items():
self.stdout.write(f"Updating {feed_type} feed...")
feed_message = FeedMessage()
feed_message.ParseFromString(requests.get(feed_url).content)
stop_times_updates = []
for entity in feed_message.entity:
if entity.HasField("trip_update"):
trip_update = entity.trip_update
trip_id = trip_update.trip.trip_id
if feed_type in ["TGV", "IC", "TER"]:
trip_id = trip_id.split(":", 1)[0]
start_date = date(year=int(trip_update.trip.start_date[:4]),
month=int(trip_update.trip.start_date[4:6]),
day=int(trip_update.trip.start_date[6:]))
start_dt = datetime.combine(start_date, time(0), tzinfo=ZoneInfo("Europe/Paris"))
if trip_update.trip.schedule_relationship == 1:
headsign = trip_id[5:-1]
trip_qs = Trip.objects.all()
trip_ids = trip_qs.values_list('id', flat=True)
first_stop_queryset = StopTime.objects.filter(
stop__parent_station_id=trip_update.stop_time_update[0].stop_id,
).values('trip_id')
last_stop_queryset = StopTime.objects.filter(
stop__parent_station_id=trip_update.stop_time_update[-1].stop_id,
).values('trip_id')
trip_ids = trip_ids.intersection(first_stop_queryset).intersection(last_stop_queryset)
for stop_sequence, stop_time_update in enumerate(trip_update.stop_time_update):
stop_id = stop_time_update.stop_id
st_queryset = StopTime.objects.filter(stop__parent_station_id=stop_id)
if stop_sequence == 0:
st_queryset = st_queryset.filter(stop_sequence=0)
trip_ids_restrict = trip_ids.intersection(st_queryset.values('trip_id'))
if trip_ids_restrict:
trip_ids = trip_ids_restrict
else:
stop = Stop.objects.get(id=stop_id)
self.stdout.write(self.style.WARNING(f"Warning: No trip is found passing by stop "
f"{stop.name} ({stop_id})"))
trip_ids = set(trip_ids)
route_ids = set(Trip.objects.filter(id__in=trip_ids).values_list('route_id', flat=True))
self.stdout.write(f"{len(route_ids)} routes found on trip for new train {headsign}")
if not route_ids:
self.stdout.write(f"Route not found for trip {trip_id}.")
continue
elif len(route_ids) > 1:
self.stdout.write(f"Multiple routes found for trip {trip_id}.")
self.stderr.write(", ".join(route_ids))
route_id = route_ids.pop()
Calendar.objects.update_or_create(
id=f"{feed_type}-new-{headsign}",
defaults={
"transport_type": feed_type,
"monday": False,
"tuesday": False,
"wednesday": False,
"thursday": False,
"friday": False,
"saturday": False,
"sunday": False,
"start_date": start_date,
"end_date": start_date,
}
)
CalendarDate.objects.update_or_create(
id=f"{feed_type}-{headsign}-{trip_update.trip.start_date}",
defaults={
"service_id": f"{feed_type}-new-{headsign}",
"date": trip_update.trip.start_date,
"exception_type": 1,
}
)
Trip.objects.update_or_create(
id=trip_id,
defaults={
"route_id": route_id,
"service_id": f"{feed_type}-new-{headsign}",
"headsign": headsign,
"direction_id": trip_update.trip.direction_id,
}
)
sample_trip = Trip.objects.filter(id__in=trip_ids, route_id=route_id).first()
for stop_sequence, stop_time_update in enumerate(trip_update.stop_time_update):
stop_id = stop_time_update.stop_id
stop = Stop.objects.get(id=stop_id)
if stop.location_type == 1:
if not StopTime.objects.filter(trip_id=trip_id).exists():
print(trip_id, sample_trip.id)
stop = StopTime.objects.get(trip_id=sample_trip.id,
stop__parent_station_id=stop_id).stop
elif StopTime.objects.filter(trip_id=trip_id, stop__parent_station_id=stop_id).exists():
stop = StopTime.objects.get(trip_id=trip_id, stop__parent_station_id=stop_id).stop
else:
stop = next(s for s in Stop.objects.filter(parent_station_id=stop_id).all()
for s2 in StopTime.objects.filter(trip_id=trip_id).all()
if s.stop_type in s2.stop.stop_type
or s2.stop.stop_type in s.stop_type)
stop_id = stop.id
arr_time = datetime.fromtimestamp(stop_time_update.arrival.time,
tz=ZoneInfo("Europe/Paris")) - start_dt
dep_time = datetime.fromtimestamp(stop_time_update.departure.time,
tz=ZoneInfo("Europe/Paris")) - start_dt
pickup_type = 0 if stop_time_update.departure.time and stop_sequence > 0 else 1
drop_off_type = 0 if stop_time_update.arrival.time \
and stop_sequence < len(trip_update.stop_time_update) - 1 else 1
StopTime.objects.update_or_create(
id=f"{trip_id}-{stop_id}",
trip_id=trip_id,
defaults={
"stop_id": stop_id,
"stop_sequence": stop_sequence,
"arrival_time": arr_time,
"departure_time": dep_time,
"pickup_type": pickup_type,
"drop_off_type": drop_off_type,
}
)
if not Trip.objects.filter(id=trip_id).exists():
self.stdout.write(f"Trip {trip_id} does not exist in the GTFS feed.")
continue
tu, _created = TripUpdate.objects.update_or_create(
trip_id=trip_id,
start_date=trip_update.trip.start_date,
start_time=trip_update.trip.start_time,
defaults=dict(
schedule_relationship=trip_update.trip.schedule_relationship,
)
)
for stop_sequence, stop_time_update in enumerate(trip_update.stop_time_update):
stop_id = stop_time_update.stop_id
if stop_id.startswith('StopArea:'):
if StopTime.objects.filter(trip_id=trip_id, stop__parent_station_id=stop_id).exists():
stop = StopTime.objects.get(trip_id=trip_id, stop__parent_station_id=stop_id).stop
else:
stop = next(s for s in Stop.objects.filter(parent_station_id=stop_id).all()
for s2 in StopTime.objects.filter(trip_id=trip_id).all()
if s.stop_type in s2.stop.stop_type
or s2.stop.stop_type in s.stop_type)
st, _created = StopTime.objects.update_or_create(
id=f"{trip_id}-{stop.id}",
trip_id=trip_id,
stop_id=stop.id,
defaults={
"stop_sequence": stop_sequence,
"arrival_time": datetime.fromtimestamp(stop_time_update.arrival.time,
tz=ZoneInfo("Europe/Paris")) - start_dt,
"departure_time": datetime.fromtimestamp(stop_time_update.departure.time,
tz=ZoneInfo("Europe/Paris")) - start_dt,
"pickup_type": 0 if stop_time_update.departure.time else 1,
"drop_off_type": 0 if stop_time_update.arrival.time else 1,
}
)
elif stop_time_update.schedule_relationship == 1:
st = StopTime.objects.get(Q(stop=stop_id) | Q(stop__parent_station_id=stop_id),
trip_id=trip_id)
if st.pickup_type != 1 or st.drop_off_type != 1:
st.pickup_type = 1
st.drop_off_type = 1
st.save()
else:
st = StopTime.objects.get(Q(stop=stop_id) | Q(stop__parent_station_id=stop_id),
trip_id=trip_id)
if st.stop_sequence != stop_sequence:
st.stop_sequence = stop_sequence
st.save()
st_update = StopTimeUpdate(
trip_update=tu,
stop_time=st,
arrival_delay=timedelta(seconds=stop_time_update.arrival.delay),
arrival_time=datetime.fromtimestamp(stop_time_update.arrival.time,
tz=ZoneInfo("Europe/Paris")),
departure_delay=timedelta(seconds=stop_time_update.departure.delay),
departure_time=datetime.fromtimestamp(stop_time_update.departure.time,
tz=ZoneInfo("Europe/Paris")),
schedule_relationship=stop_time_update.schedule_relationship or 0,
)
stop_times_updates.append(st_update)
else:
self.stdout.write(str(entity))
StopTimeUpdate.objects.bulk_create(stop_times_updates,
update_conflicts=True,
update_fields=['arrival_delay', 'arrival_time',
'departure_delay', 'departure_time'],
unique_fields=['trip_update', 'stop_time'])