Initial commit - Migrated to Dev environment

backend/app/services/config_service.py

@@ -0,0 +1,41 @@
+from typing import Any, Optional
+from sqlalchemy import text
+from app.db.session import SessionLocal
+
+class ConfigService:
+    @staticmethod
+    async def get_setting(
+        key: str, 
+        org_id: Optional[int] = None, 
+        region_code: Optional[str] = None, 
+        tier_id: Optional[int] = None,
+        default: Any = None
+    ) -> Any:
+        query = text("""
+            SELECT value_json 
+            FROM data.system_settings 
+            WHERE key_name = :key 
+            AND (
+                (org_id = :org_id) OR
+                (org_id IS NULL AND tier_id = :tier_id) OR
+                (org_id IS NULL AND tier_id IS NULL AND region_code = :region_code) OR
+                (org_id IS NULL AND tier_id IS NULL AND region_code IS NULL)
+            )
+            ORDER BY 
+                (org_id IS NOT NULL) DESC, 
+                (tier_id IS NOT NULL) DESC, 
+                (region_code IS NOT NULL) DESC
+            LIMIT 1
+        """)
+        
+        async with SessionLocal() as db:
+            result = await db.execute(query, {
+                "key": key,
+                "org_id": org_id,
+                "tier_id": tier_id,
+                "region_code": region_code
+            })
+            row = result.fetchone()
+            return row[0] if row else default
+
+config = ConfigService()