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Signed-off-by: Emmy D'Anello <ynerant@emy.lu>
This commit is contained in:
Emmy D'Anello
2023-04-25 11:51:15 +02:00
committed by Emmy D'Anello
parent 089af1db75
commit 2004155e51
2 changed files with 62 additions and 28 deletions
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86
app.py
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@@ -7,6 +7,7 @@ import os
import json
from pytz import timezone
import requests
from time import sleep
import click
from flask import Flask, render_template
@@ -160,24 +161,30 @@ def parse_trains(flush: bool = False, verbose: bool = False):
db.session.commit()
def find_routes(day: date, origin: str, destination: str | None):
def find_routes(day: date | datetime, origin: str, destination: str | None,
verbose: bool = False):
if isinstance(day, datetime):
day = day.date()
trains = db.session.query(Train).filter_by(day=day, tgvmax=True).all()
trains.sort(key=lambda train: train.dep)
# For better results later, fetch all trains from the origin or to the destination
# This is not exhaustive, but can be a good approximation
queue_routes(day, origin=origin)
queue_routes(day, origin=origin, verbose=verbose, autocommit=False)
if destination:
queue_routes(day, destination=destination)
queue_routes(day, destination=destination, verbose=verbose, autocommit=False)
db.session.commit()
per_arr_explore = {}
valid_routes = []
for train in trains:
for train in (t := tqdm(trains) if verbose else trains):
if train.orig == origin:
# Update from the TGVMax simulator
queue_route(day, train.orig_iata, train.dest_iata)
queue_route(day, train.orig_iata, train.dest_iata, verbose, False)
it = [train]
if train.dest == destination:
@@ -197,7 +204,7 @@ def find_routes(day: date, origin: str, destination: str | None):
if last_train.arr <= train.dep:
# Update from the TGVMax simulator, this line can be useful later
queue_route(day, train.orig_iata, train.dest_iata)
queue_route(day, train.orig_iata, train.dest_iata, verbose, False)
new_it = it + [train]
if train.dest == destination:
@@ -207,10 +214,21 @@ def find_routes(day: date, origin: str, destination: str | None):
per_arr_explore.setdefault(train.dest, [])
per_arr_explore[train.dest].append(new_it)
# Send queued trains to the database
db.session.commit()
return {destination: valid_routes} if destination else per_arr_explore
def queue_route(day: date | datetime, origin: str, destination: str, verbose: bool = False):
# Don't use the decorator to keep the function callable
cli.command('find-routes')(click.argument('day', type=click.DateTime(formats=['%Y-%m-%d']))
(click.argument('origin', type=str)
(click.argument('destination', type=str, default=None)
(click.option('--verbose', '-v', type=bool, is_flag=True, help="Display errors.")
(find_routes)))))
def queue_route(day: date | datetime, origin: str, destination: str, verbose: bool = False, autocommit: bool = True):
"""
Fetch the TGVMax simulator to refresh data.
@@ -225,8 +243,6 @@ def queue_route(day: date | datetime, origin: str, destination: str, verbose: bo
query = db.session.query(RouteQueue).filter_by(day=day, origin=origin, destination=destination, response_time=None)
if query.count():
if verbose:
print("Already queued")
return
query = db.session.query(RouteQueue).filter(RouteQueue.day == day,
@@ -234,8 +250,6 @@ def queue_route(day: date | datetime, origin: str, destination: str, verbose: bo
RouteQueue.destination == destination,
RouteQueue.expiration_time >= datetime.now(timezone('UTC')))
if query.count():
if verbose:
print("Using recent value")
return
db.session.add(RouteQueue(day=day, origin=origin, destination=destination))
@@ -251,7 +265,8 @@ cli.command('queue-route')(click.argument('day', type=click.DateTime(formats=['%
def queue_routes(day: date | datetime, origin: str | None = None,
destination: str | None = None, verbose: bool = False):
destination: str | None = None, verbose: bool = False,
autocommit: bool = True):
if isinstance(day, datetime):
day = day.date()
@@ -260,8 +275,11 @@ def queue_routes(day: date | datetime, origin: str | None = None,
query = query.filter((Train.orig_iata == origin) | (Train.orig == origin))
if destination:
query = query.filter((Train.dest_iata == destination) | (Train.dest == destination))
for train in query.all():
queue_route(day, train.orig_iata, train.dest_iata, verbose)
query = query.all()
for train in (t := tqdm(query) if verbose else query):
if verbose:
t.set_description(f"{day}: {train.orig} --> {train.dest}")
queue_route(day, train.orig_iata, train.dest_iata, verbose, autocommit)
# Same as above
@@ -274,27 +292,38 @@ cli.command('queue-routes')(click.argument('day', type=click.DateTime(formats=['
@cli.command('process-queue', help="Process the waiting list to refresh from the simulator.")
@click.argument('number', default=30, type=int)
def process_queue(number: int):
queue = db.session.query(RouteQueue).filter_by(response_time=None).order_by(RouteQueue.queue_time)
@click.option('--verbose', '-v', type=bool, is_flag=True, help="Display errors.")
def process_queue(number: int, verbose: bool = False):
queue = db.session.query(RouteQueue).filter_by(response_time=None).order_by(RouteQueue.queue_time).all()
if number > 0:
queue = queue[:number]
URL = "https://www.maxjeune-tgvinoui.sncf/api/public/refdata/search-freeplaces-proposals"
for req in queue:
if verbose:
query = db.session.query(Train).with_entities(Train.orig_iata, Train.orig).distinct()
iata_to_names = {k: v for (k, v) in query.all()}
for i, req in enumerate(t := tqdm(queue) if verbose else queue):
req: RouteQueue
resp = requests.post(URL, json={
'departureDateTime': req.day.isoformat(),
'origin': req.origin,
'destination': req.destination,
})
if verbose:
t.set_description(f"{req.day:%d/%m/%Y}: {iata_to_names[req.origin]} --> {iata_to_names[req.destination]}")
resp = None
while resp is None or resp.status_code == 429:
resp = requests.post(URL, json={
'departureDateTime': req.day.isoformat(),
'origin': req.origin,
'destination': req.destination,
})
if resp.status_code == 429:
sleep(1)
if resp.status_code == 404:
# No travel found
req.response_time = datetime.now()
req.expiration_time = datetime.now() + timedelta(hours=1)
req.expiration_time = datetime.now() + timedelta(hours=3)
db.session.add(req)
db.session.commit()
continue
resp.raise_for_status()
@@ -310,9 +339,11 @@ def process_queue(number: int):
for proposal in data['proposals']:
train = db.session.query(Train).filter_by(day=req.day, number=int(proposal['trainNumber']),
orig_iata=req.origin, dest_iata=req.destination).first()
orig_iata=proposal['origin']['rrCode'],
dest_iata=proposal['destination']['rrCode']).first()
if train is None:
# In a city with multiple stations
print("ERROR")
print(proposal)
continue
train.tgvmax = True
@@ -321,7 +352,10 @@ def process_queue(number: int):
train.expiration_time = req.expiration_time
db.session.add(train)
db.session.commit()
if i % 50 == 0:
db.session.commit()
db.session.commit()
@app.get('/')

4
templates/index.html
View File

@@ -42,8 +42,8 @@
fetch('/api/iata-codes/').then(res => res.json()).then(out => {
let datalist = document.getElementById('iataCodes')
datalist.innerHTML = ''
for (let iata in out.iata2name) {
let name = out.iata2name[iata]
for (let name in out.name2iata) {
let iata = out.name2iata[name]
let elem = document.createElement('option')
elem.value = name
elem.setAttribute('data-iata', iata)