Update

main.py

@@ -143,6 +143,8 @@ def cabins_url(dep: str, arr: str, crossing: dict[str, Any], ticket_tier: str) -
     """Generate a URL for the cabins on a given crossing."""
     dt = datetime.fromisoformat(crossing["departureDateTime"]["iso"])
     utc_dt = dt.astimezone(pytz.utc)
+    adults_str = flask.request.args.get("adults")
+    small_dogs_str = flask.request.args.get("small_dogs")
 
     return flask.url_for(
         "cabins",
@@ -151,6 +153,8 @@ def cabins_url(dep: str, arr: str, crossing: dict[str, Any], ticket_tier: str) -
         arrival_port=ferry.ports[arr],
         departure_date=utc_dt.strftime("%Y-%m-%dT%H:%M:%S.000Z"),
         ticket_tier=ticket_tier,
+        adults=adults_str,
+        small_dogs=small_dogs_str,
     )
 
 
@@ -188,9 +192,9 @@ def get_prices_with_cache(
     start: str,
     end: str,
     selection: list[tuple[str, str]],
+    adults: int,
+    small_dogs: int,
     refresh: bool = False,
-    adults: int = 2,
-    small_dogs: int = 1,
 ) -> PriceData:
     """Get price data using cache."""
     params = f"{direction}_{start}_{end}_{adults}_{small_dogs}"
@@ -224,22 +228,38 @@ def get_prices_with_cache(
     return all_data
 
 
+def read_pax() -> dict[str, int]:
+    """Get the number of adults and dogs that are travelling."""
+    config_adults = int(ferry_config.get("pax", "adults"))
+    config_dogs = int(ferry_config.get("pax", "dogs"))
+
+    adults_str = flask.request.args.get("adults")
+    adults = int(adults_str) if adults_str else config_adults
+
+    small_dogs_str = flask.request.args.get("small_dogs")
+    small_dogs = int(small_dogs_str) if small_dogs_str else config_dogs
+
+    return {"adults": adults, "small_dogs": small_dogs}
+
+
 def build_outbound(section: str) -> str:
     """Show all routes on one page."""
     start = ferry_config.get(section, "from")
     end = ferry_config.get(section, "to")
     refresh = bool(flask.request.args.get("refresh"))
 
-    adults_str = flask.request.args.get("adults")
-    adults = int(adults_str) if adults_str else 2
-
-    small_dogs_str = flask.request.args.get("small_dogs")
-    small_dogs = int(small_dogs_str) if small_dogs_str else 2
+    pax = read_pax()
 
     direction = section[:-1] if section[-1].isdigit() else section
 
     all_data = get_prices_with_cache(
-        direction, start, end, routes["outbound"], refresh, adults, small_dogs
+        direction,
+        start,
+        end,
+        routes["outbound"],
+        pax["adults"],
+        pax["small_dogs"],
+        refresh,
     )
 
     return flask.render_template(
@@ -262,17 +282,18 @@ def build_return(section: str) -> str:
     start = ferry_config.get(section, "from")
     end = ferry_config.get(section, "to")
     refresh = bool(flask.request.args.get("refresh"))
+    pax = read_pax()
 
     direction = section[:-1] if section[-1].isdigit() else section
 
-    adults_str = flask.request.args.get("adults")
-    adults = int(adults_str) if adults_str else 2
-
-    small_dogs_str = flask.request.args.get("small_dogs")
-    small_dogs = int(small_dogs_str) if small_dogs_str else 2
-
     all_data = get_prices_with_cache(
-        direction, start, end, routes["return"], refresh, adults, small_dogs
+        direction,
+        start,
+        end,
+        routes["return"],
+        pax["adults"],
+        pax["small_dogs"],
+        refresh,
     )
 
     return flask.render_template(
@@ -331,7 +352,9 @@ def format_pet_options(o: dict[str, bool]) -> list[str]:
 def get_accommodations_with_cache(
     dep: str, arr: str, d: str, ticket_tier: str, refresh: bool = False
 ) -> dict[str, list[dict[str, Any]]]:
-    params = f"{dep}_{arr}_{d}_{ticket_tier}"
+    pax = read_pax()
+
+    params = f"{dep}_{arr}_{d}_{ticket_tier}_{pax['adults']}_{pax['small_dogs']}"
     existing_files = os.listdir(cache_location())
     existing = [f for f in existing_files if f.endswith(params + ".json")]
     if not refresh and existing:
@@ -348,7 +371,9 @@ def get_accommodations_with_cache(
 
     vehicle = vehicle_from_config(ferry_config)
     filename = cache_filename(params)
-    data = get_accommodations(dep, arr, d, ticket_tier, vehicle)
+    data = get_accommodations(
+        dep, arr, d, ticket_tier, vehicle, pax["adults"], pax["small_dogs"]
+    )
 
     with open(filename, "w") as out:
         print(filename)
@@ -425,7 +450,11 @@ def cabins(
         section, start, end = get_outbound_section(departure_date[:10])
         time_delta = -60
 
-    prices = get_prices_with_cache(direction, start, end, routes[direction])
+    pax = read_pax()
+
+    prices = get_prices_with_cache(
+        direction, start, end, routes[direction], pax["adults"], pax["small_dogs"]
+    )
     crossing = lookup_sailing_id(prices, sailing_id)
 
     cabin_data = get_accommodations_with_cache(