first commit

backend/app/db/mongo.py

@@ -0,0 +1,29 @@
+from motor.motor_asyncio import AsyncIOMotorClient, AsyncIOMotorDatabase
+
+from app.core.config import settings
+
+client: AsyncIOMotorClient | None = None
+
+
+def get_database() -> AsyncIOMotorDatabase:
+    if client is None:
+        raise RuntimeError("MongoDB client has not been initialized")
+    return client[settings.mongo_db_name]
+
+
+def get_client() -> AsyncIOMotorClient:
+    if client is None:
+        raise RuntimeError("MongoDB client has not been initialized")
+    return client
+
+
+async def connect_to_mongo() -> None:
+    global client
+    client = AsyncIOMotorClient(settings.mongo_uri)
+
+
+async def close_mongo_connection() -> None:
+    global client
+    if client is not None:
+        client.close()
+        client = None