Queue routes when necessary

app.py

@@ -156,17 +156,25 @@ def parse_trains(flush: bool = False):
     db.session.commit()
 
 
-def find_routes(day, origin, destination):
+def find_routes(day: date, origin: str, destination: str):
     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, destination=destination)
+
     explore = []
     per_arr_explore = {}
     valid_routes = []
 
     for train in tqdm(trains):
         if train.orig == origin:
+            # Update from the TGVMax simulator
+            queue_route(day, train.orig_iata, train.dest_iata)
+
             it = [train]
             if train.dest == destination:
                 # We hope that we have a direct train
@@ -185,6 +193,9 @@ def find_routes(day, origin, destination):
             last_train = it[-1]
 
             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)
+
                 new_it = it + [train]
                 if train.dest == destination:
                     # Goal is achieved
@@ -197,18 +208,7 @@ def find_routes(day, origin, destination):
     return valid_routes
 
 
-def print_route(route: list[Train]):
+def queue_route(day: date | datetime, origin: str, destination: str, verbose: bool = False):
-    s = f"{route[0].orig} "
-    for tr in route:
-        s += f"({tr.dep}) --> ({tr.arr}) {tr.dest}, "
-    print(s[:-2])
-
-
-@cli.command('queue-route')
-@click.argument('day', type=click.DateTime(formats=['%Y-%m-%d']))
-@click.argument('origin', type=str)
-@click.argument('destination', type=str)
-def queue_route(day: date | datetime, origin: str, destination: str):
     """
     Fetch the TGVMax simulator to refresh data.
 
@@ -223,6 +223,7 @@ def queue_route(day: date | datetime, origin: str, destination: str):
 
     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
 
@@ -231,6 +232,7 @@ def queue_route(day: date | datetime, origin: str, destination: str):
                                                 RouteQueue.destination == destination,
                                                 RouteQueue.expiration_time >= datetime.now(timezone('UTC')))
     if query.count():
+        if verbose:
             print("Using recent value")
         return
 
@@ -238,8 +240,38 @@ def queue_route(day: date | datetime, origin: str, destination: str):
     db.session.commit()
 
 
+# Don't use the decorator to keep the function callable
+cli.command('queue-route')(click.argument('day', type=click.DateTime(formats=['%Y-%m-%d']))
+                           (click.argument('origin', type=str)
+                            (click.argument('destination', type=str)
+                             (click.option('--verbose', '-v', type=bool, is_flag=True, help="Display errors.")
+                              (queue_route)))))
+
+
+def queue_routes(day: date | datetime, origin: str | None = None,
+                 destination: str | None = None, verbose: bool = False):
+    if isinstance(day, datetime):
+        day = day.date()
+
+    query = db.session.query(Train).filter((Train.day == day))
+    if origin:
+        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)
+
+
+# Same as above
+cli.command('queue-routes')(click.argument('day', type=click.DateTime(formats=['%Y-%m-%d']))
+                            (click.option('--origin', '-o', default=None)
+                             (click.option('--destination', '-d', default=None)
+                              (click.option('--verbose', '-v', type=bool, is_flag=True, help="Display errors.")
+                               (queue_routes)))))
+
+
 @cli.command('process-queue', help="Process the waiting list to refresh from the simulator.")
-@click.argument('number', default=5, type=int)
+@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)
     if number > 0:
@@ -260,6 +292,7 @@ def process_queue(number: int):
             req.response_time = datetime.now()
             req.expiration_time = datetime.now() + timedelta(hours=1)
             db.session.add(req)
+            db.session.commit()
             continue
 
         resp.raise_for_status()
@@ -276,6 +309,10 @@ 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()
+            if train is None:
+                # In a city with multiple stations
+                print(proposal)
+                continue
             train.tgvmax = True
             train.remaining_seats = proposal['freePlaces']
             train.last_modification = req.response_time
@@ -304,7 +341,10 @@ def iata_codes():
 
 
 @app.get('/api/routes/<day>/<origin>/<destination>/')
-def get_routes(day: date, origin: str, destination: str):
+def get_routes(day: date | str, origin: str, destination: str):
+    if isinstance(day, str):
+        day = date.fromisoformat(day)
+
     routes = find_routes(day, origin, destination)
     return [
         [{