feat: separate sql

backend/app/config.py

@@ -1,17 +1,16 @@
 """Application configuration from environment variables."""
 
 import os
+from pathlib import Path
+
+SQL_DIR = Path(__file__).parent / "sql"
 
 
 class Settings:
     """Application settings loaded from environment variables.
 
     Configure via DATABASE_URL (single connection string) or individual
-    POSTGRES_* variables. The application expects the target database to
-    contain:
-      - A listings table (default: marts.funda_listings)
-      - An ELO schema with ratings, comparisons, and sample_listings tables
-        (default: elo.*)
+    POSTGRES_* variables.
     """
 
     POSTGRES_HOST: str = os.getenv("POSTGRES_HOST", "localhost")
@@ -23,6 +22,8 @@ class Settings:
     LISTINGS_SCHEMA: str = os.getenv("LISTINGS_SCHEMA", "marts")
     LISTINGS_TABLE: str = os.getenv("LISTINGS_TABLE", "funda_listings")
     ELO_SCHEMA: str = os.getenv("ELO_SCHEMA", "elo")
+    IMAGES_SCHEMA: str = os.getenv("IMAGES_SCHEMA", "raw_funda")
+    IMAGES_TABLE: str = os.getenv("IMAGES_TABLE", "listing_details")
 
     K_FACTOR: float = float(os.getenv("ELO_K_FACTOR", "32"))
     DEFAULT_ELO: float = float(os.getenv("ELO_DEFAULT_RATING", "1500"))
@@ -39,3 +40,15 @@ class Settings:
 
 
 settings = Settings()
+
+
+def load_sql(name: str) -> str:
+    """Load a SQL template from the sql/ directory and inject schema/table names."""
+    raw = (SQL_DIR / name).read_text()
+    return raw.format(
+        listings_schema=settings.LISTINGS_SCHEMA,
+        listings_table=settings.LISTINGS_TABLE,
+        elo_schema=settings.ELO_SCHEMA,
+        images_schema=settings.IMAGES_SCHEMA,
+        images_table=settings.IMAGES_TABLE,
+    )