Move trip code into separate file

This commit is contained in:
Edward Betts 2024-01-14 10:14:05 +00:00
parent e0735b4185
commit 4a990a9fe5
2 changed files with 185 additions and 175 deletions

180
agenda/trip.py Normal file
View file

@ -0,0 +1,180 @@
import operator
import os
from datetime import date
import flask
from agenda import travel
from agenda.types import StrDict, Trip
def load_travel(travel_type: str) -> list[StrDict]:
"""Read flight and train journeys."""
data_dir = flask.current_app.config["PERSONAL_DATA"]
items = travel.parse_yaml(travel_type + "s", data_dir)
for item in items:
item["type"] = travel_type
return items
def load_trains() -> list[StrDict]:
"""Load trains."""
data_dir = flask.current_app.config["PERSONAL_DATA"]
trains = load_travel("train")
stations = travel.parse_yaml("stations", data_dir)
by_name = {station["name"]: station for station in stations}
for train in trains:
assert train["from"] in by_name
assert train["to"] in by_name
train["from_station"] = by_name[train["from"]]
train["to_station"] = by_name[train["to"]]
for leg in train["legs"]:
assert leg["from"] in by_name
assert leg["to"] in by_name
leg["from_station"] = by_name[leg["from"]]
leg["to_station"] = by_name[leg["to"]]
return trains
def load_flights() -> list[StrDict]:
"""Load flights."""
data_dir = flask.current_app.config["PERSONAL_DATA"]
flights = load_travel("flight")
airports = travel.parse_yaml("airports", data_dir)
for flight in flights:
if flight["from"] in airports:
flight["from_airport"] = airports[flight["from"]]
if flight["to"] in airports:
flight["to_airport"] = airports[flight["to"]]
return flights
def build_trip_list() -> list[Trip]:
"""Generate list of trips."""
trips: dict[date, Trip] = {}
data_dir = flask.current_app.config["PERSONAL_DATA"]
travel_items = sorted(
load_flights() + load_trains(), key=operator.itemgetter("depart")
)
data = {
"travel": travel_items,
"accommodation": travel.parse_yaml("accommodation", data_dir),
"conferences": travel.parse_yaml("conferences", data_dir),
"events": travel.parse_yaml("events", data_dir),
}
for key, item_list in data.items():
assert isinstance(item_list, list)
for item in item_list:
if not (start := item.get("trip")):
continue
if start not in trips:
trips[start] = Trip(start=start)
getattr(trips[start], key).append(item)
return [trip for _, trip in sorted(trips.items())]
def collect_trip_coordinates(trip: Trip) -> list[StrDict]:
"""Extract and deduplicate airport and station coordinates from trip."""
stations = {}
station_list = []
airports = {}
for t in trip.travel:
if t["type"] == "train":
station_list += [t["from_station"], t["to_station"]]
for leg in t["legs"]:
station_list.append(leg["from_station"])
station_list.append(leg["to_station"])
else:
assert t["type"] == "flight"
for field in "from_airport", "to_airport":
if field in t:
airports[t[field]["iata"]] = t[field]
for s in station_list:
if s["uic"] in stations:
continue
stations[s["uic"]] = s
return [
{
"name": s["name"],
"type": "station",
"latitude": s["latitude"],
"longitude": s["longitude"],
}
for s in stations.values()
] + [
{
"name": s["name"],
"type": "airport",
"latitude": s["latitude"],
"longitude": s["longitude"],
}
for s in airports.values()
]
def latlon_tuple(stop: StrDict) -> tuple[float, float]:
"""Given a transport stop return the lat/lon as a tuple."""
return (stop["latitude"], stop["longitude"])
def read_geojson(filename: str) -> str:
"""Read GeoJSON from file."""
data_dir = flask.current_app.config["PERSONAL_DATA"]
return open(os.path.join(data_dir, "train_routes", filename + ".geojson")).read()
def get_trip_routes(trip: Trip) -> list[StrDict]:
"""Get routes for given trip to show on map."""
routes = []
seen_geojson = set()
for t in trip.travel:
if t["type"] == "flight":
if "from_airport" not in t or "to_airport" not in t:
continue
fly_from, fly_to = t["from_airport"], t["to_airport"]
routes.append(
{
"type": "flight",
"from": latlon_tuple(fly_from),
"to": latlon_tuple(fly_to),
}
)
else:
assert t["type"] == "train"
for leg in t["legs"]:
train_from, train_to = leg["from_station"], leg["to_station"]
geojson_filename = train_from.get("routes", {}).get(train_to["uic"])
if not geojson_filename:
routes.append(
{
"type": "train",
"from": latlon_tuple(train_from),
"to": latlon_tuple(train_to),
}
)
continue
if geojson_filename in seen_geojson:
continue
seen_geojson.add(geojson_filename)
routes.append(
{
"type": "train",
"geojson": read_geojson(geojson_filename),
}
)
return routes

View file

@ -17,8 +17,8 @@ import yaml
import agenda.data
import agenda.error_mail
import agenda.thespacedevs
import agenda.trip
from agenda import format_list_with_ampersand, travel
from agenda.types import StrDict, Trip
app = flask.Flask(__name__)
app.debug = False
@ -155,84 +155,10 @@ def accommodation_list() -> str:
)
def load_travel(travel_type: str) -> list[StrDict]:
"""Read flight and train journeys."""
data_dir = app.config["PERSONAL_DATA"]
items = travel.parse_yaml(travel_type + "s", data_dir)
for item in items:
item["type"] = travel_type
return items
def load_trains() -> list[StrDict]:
"""Load trains."""
data_dir = app.config["PERSONAL_DATA"]
trains = load_travel("train")
stations = travel.parse_yaml("stations", data_dir)
by_name = {station["name"]: station for station in stations}
for train in trains:
assert train["from"] in by_name
assert train["to"] in by_name
train["from_station"] = by_name[train["from"]]
train["to_station"] = by_name[train["to"]]
for leg in train["legs"]:
assert leg["from"] in by_name
assert leg["to"] in by_name
leg["from_station"] = by_name[leg["from"]]
leg["to_station"] = by_name[leg["to"]]
return trains
def load_flights() -> list[StrDict]:
"""Load flights."""
data_dir = app.config["PERSONAL_DATA"]
flights = load_travel("flight")
airports = travel.parse_yaml("airports", data_dir)
for flight in flights:
if flight["from"] in airports:
flight["from_airport"] = airports[flight["from"]]
if flight["to"] in airports:
flight["to_airport"] = airports[flight["to"]]
return flights
def build_trip_list() -> list[Trip]:
"""Generate list of trips."""
trips: dict[date, Trip] = {}
data_dir = app.config["PERSONAL_DATA"]
travel_items = sorted(
load_flights() + load_trains(), key=operator.itemgetter("depart")
)
data = {
"travel": travel_items,
"accommodation": travel.parse_yaml("accommodation", data_dir),
"conferences": travel.parse_yaml("conferences", data_dir),
"events": travel.parse_yaml("events", data_dir),
}
for key, item_list in data.items():
assert isinstance(item_list, list)
for item in item_list:
if not (start := item.get("trip")):
continue
if start not in trips:
trips[start] = Trip(start=start)
getattr(trips[start], key).append(item)
return [trip for _, trip in sorted(trips.items())]
@app.route("/trip")
def trip_list() -> str:
"""Page showing a list of trips."""
trip_list = build_trip_list()
trip_list = agenda.trip.build_trip_list()
today = date.today()
current = [
@ -255,106 +181,10 @@ def trip_list() -> str:
)
def collect_trip_coordinates(trip: Trip) -> list[StrDict]:
"""Extract and deduplicate airport and station coordinates from trip."""
stations = {}
station_list = []
airports = {}
for t in trip.travel:
if t["type"] == "train":
station_list += [t["from_station"], t["to_station"]]
for leg in t["legs"]:
station_list.append(leg["from_station"])
station_list.append(leg["to_station"])
else:
assert t["type"] == "flight"
for field in "from_airport", "to_airport":
if field in t:
airports[t[field]["iata"]] = t[field]
for s in station_list:
if s["uic"] in stations:
continue
stations[s["uic"]] = s
return [
{
"name": s["name"],
"type": "station",
"latitude": s["latitude"],
"longitude": s["longitude"],
}
for s in stations.values()
] + [
{
"name": s["name"],
"type": "airport",
"latitude": s["latitude"],
"longitude": s["longitude"],
}
for s in airports.values()
]
def latlon_tuple(stop: StrDict) -> tuple[float, float]:
"""Given a transport stop return the lat/lon as a tuple."""
return (stop["latitude"], stop["longitude"])
def read_geojson(filename: str) -> str:
data_dir = app.config["PERSONAL_DATA"]
return open(os.path.join(data_dir, "train_routes", filename + ".geojson")).read()
def get_trip_routes(trip: Trip) -> list[StrDict]:
routes = []
seen_geojson = set()
for t in trip.travel:
if t["type"] == "flight":
if "from_airport" not in t or "to_airport" not in t:
continue
fly_from, fly_to = t["from_airport"], t["to_airport"]
routes.append(
{
"type": "flight",
"from": latlon_tuple(fly_from),
"to": latlon_tuple(fly_to),
}
)
else:
assert t["type"] == "train"
for leg in t["legs"]:
train_from, train_to = leg["from_station"], leg["to_station"]
geojson_filename = train_from.get("routes", {}).get(train_to["uic"])
if not geojson_filename:
routes.append(
{
"type": "train",
"from": latlon_tuple(train_from),
"to": latlon_tuple(train_to),
}
)
continue
if geojson_filename in seen_geojson:
continue
seen_geojson.add(geojson_filename)
routes.append(
{
"type": "train",
"geojson": read_geojson(geojson_filename),
}
)
return routes
@app.route("/trip/<start>")
def trip_page(start: str) -> str:
"""Individual trip page."""
trip_list = build_trip_list()
trip_list = agenda.trip.build_trip_list()
today = date.today()
trip = next((trip for trip in trip_list if trip.start.isoformat() == start), None)
@ -362,8 +192,8 @@ def trip_page(start: str) -> str:
if not trip:
flask.abort(404)
coordinates = collect_trip_coordinates(trip)
routes = get_trip_routes(trip)
coordinates = agenda.trip.collect_trip_coordinates(trip)
routes = agenda.trip.get_trip_routes(trip)
return flask.render_template(
"trip_page.html",