feat: initial project setup

backend/app/queries.py

@@ -0,0 +1,68 @@
+"""Shared query helpers for listing data."""
+
+from app.config import settings
+from app.schemas import ListingResponse
+
+LISTING_SELECT = f"""
+    SELECT
+        l.global_id, l.tiny_id, l.url, l.title, l.city, l.postcode,
+        l.province, l.neighbourhood, l.municipality,
+        l.latitude, l.longitude,
+        l.object_type, l.house_type, l.offering_type,
+        l.construction_type, l.construction_year,
+        l.energy_label, l.living_area, l.plot_area,
+        l.bedrooms, l.rooms,
+        l.has_garden, l.has_balcony, l.has_solar_panels,
+        l.has_heat_pump, l.has_roof_terrace,
+        l.is_energy_efficient, l.is_monument,
+        l.current_price, l.status, l.price_per_sqm,
+        l.publication_date,
+        COALESCE(r.elo_rating, {settings.DEFAULT_ELO}) AS elo_rating,
+        COALESCE(r.comparison_count, 0) AS comparison_count,
+        COALESCE(r.wins, 0) AS wins,
+        COALESCE(r.losses, 0) AS losses
+    FROM {settings.LISTINGS_SCHEMA}.{settings.LISTINGS_TABLE} l
+    LEFT JOIN {settings.ELO_SCHEMA}.ratings r ON l.global_id = r.global_id
+"""
+
+
+def row_to_listing(row) -> ListingResponse:
+    """Convert a raw SQL row to a ListingResponse."""
+    return ListingResponse(
+        global_id=row.global_id,
+        tiny_id=row.tiny_id,
+        url=row.url,
+        title=row.title,
+        city=row.city,
+        postcode=row.postcode,
+        province=row.province,
+        neighbourhood=row.neighbourhood,
+        municipality=row.municipality,
+        latitude=float(row.latitude) if row.latitude is not None else None,
+        longitude=float(row.longitude) if row.longitude is not None else None,
+        object_type=row.object_type,
+        house_type=row.house_type,
+        offering_type=row.offering_type,
+        construction_type=row.construction_type,
+        construction_year=row.construction_year,
+        energy_label=row.energy_label,
+        living_area=row.living_area,
+        plot_area=row.plot_area,
+        bedrooms=row.bedrooms,
+        rooms=row.rooms,
+        has_garden=row.has_garden,
+        has_balcony=row.has_balcony,
+        has_solar_panels=row.has_solar_panels,
+        has_heat_pump=row.has_heat_pump,
+        has_roof_terrace=row.has_roof_terrace,
+        is_energy_efficient=row.is_energy_efficient,
+        is_monument=row.is_monument,
+        current_price=row.current_price,
+        status=row.status,
+        price_per_sqm=float(row.price_per_sqm) if row.price_per_sqm is not None else None,
+        publication_date=row.publication_date,
+        elo_rating=round(float(row.elo_rating), 1),
+        comparison_count=int(row.comparison_count),
+        wins=int(row.wins),
+        losses=int(row.losses),
+    )