Fix POI distance calculation for buy listings

The distance calculator always queried the rentlisting table regardless of
listing type because get_listings() defaulted to RentListing when called
without query_parameters. Added a listing_type parameter to get_listings()
and _get_model_for_query() so callers can select the correct table directly.

repositories/listing_repository.py

@@ -40,13 +40,14 @@ class ListingRepository:
         query_parameters: QueryParameters | None = None,
         only_ids: list[int] | None = None,
         limit: int | None = None,
+        listing_type: ListingType | None = None,
     ) -> list[modelListing]:
         """
         Get all listings from the database.
         """
         only_ids = only_ids or []
 
-        model = self._get_model_for_query(query_parameters)
+        model = self._get_model_for_query(query_parameters, listing_type=listing_type)
 
         query = select(model)
         if only_ids:
@@ -87,9 +88,18 @@ class ListingRepository:
                 yield listing
 
     def _get_model_for_query(
-        self, query_parameters: QueryParameters | None
+        self,
+        query_parameters: QueryParameters | None,
+        listing_type: ListingType | None = None,
     ) -> type[RentListing] | type[BuyListing]:
-        """Get the appropriate model class based on query parameters."""
+        """Get the appropriate model class based on query parameters or explicit listing type.
+
+        The explicit listing_type parameter takes precedence over query_parameters.
+        """
+        if listing_type == ListingType.BUY:
+            return BuyListing
+        if listing_type is not None:
+            return RentListing
         if query_parameters and query_parameters.listing_type == ListingType.BUY:
             return BuyListing
         return RentListing

services/poi_distance_calculator.py

@@ -7,7 +7,7 @@ from typing import Callable
 import aiohttp
 
 from config.routing_config import RoutingConfig
-from models.listing import BuyListing, ListingType, RentListing
+from models.listing import ListingType
 from models.poi import PointOfInterest
 from models.poi_distance import POIDistance
 from rec.osrm_client import osrm_table
@@ -53,10 +53,9 @@ async def calculate_poi_distances(
         config = RoutingConfig.from_env()
 
     # Load listings with coordinates
-    model = RentListing if listing_type == ListingType.RENT else BuyListing
     listings = await listing_repo.get_listings(
         only_ids=listing_ids,
-        query_parameters=None,
+        listing_type=listing_type,
     )
     if not listings:
         logger.info("No listings found for distance calculation")