GuidoandClaude Opus 5.5
d92dac4a00
Fahrplan-Aufbereitung (Bahnfilter + pfaedle), GTFS-RT-Abruf, Positionsberechnung entlang der Strecke, Weboberfläche mit Karte/Satellit, Proxmox-LXC-Installation. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01X48pE4bzjHej8w9HyZXCjb
42 lines
1.6 KiB
Python
42 lines
1.6 KiB
Python
"""GTFS-RT Trip Updates von opentransportdata.swiss holen und auf das Nötigste eindampfen."""
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import httpx
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from google.transit import gtfs_realtime_pb2 as pb
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from . import config as C
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CANCELED = pb.TripDescriptor.CANCELED
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def parse(data: bytes, known_trips: dict):
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"""-> (feed_version, {(trip_id, start_date): (ausgefallen, [(seq, ank, ank_absolut, abf, abf_absolut), ...])})
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ank/abf sind Verspätung in s, oder Unix-Zeit wenn *_absolut; None = keine Angabe."""
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feed = pb.FeedMessage()
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feed.ParseFromString(data)
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out = {}
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for e in feed.entity:
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if not e.HasField("trip_update"):
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continue
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tu = e.trip_update
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if tu.trip.trip_id not in known_trips:
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continue # nicht Bahn
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upd = []
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for s in tu.stop_time_update:
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ev = []
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for name in ("arrival", "departure"):
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if s.HasField(name):
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x = getattr(s, name)
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ev += [x.time, True] if x.HasField("time") else [x.delay, False] if x.HasField("delay") else [None, False]
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else:
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ev += [None, False]
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upd.append((s.stop_sequence, *ev))
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out[(tu.trip.trip_id, tu.trip.start_date)] = (tu.trip.schedule_relationship == CANCELED, upd)
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version = feed.header.feed_version if feed.header.HasField("feed_version") else None
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return version, out
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def fetch() -> bytes:
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r = httpx.get(C.RT_URL, follow_redirects=True, timeout=30, headers={
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"Authorization": f"Bearer {C.RT_KEY}", "User-Agent": C.USER_AGENT})
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r.raise_for_status()
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return r.content
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