chore: minor fixes and formatting

services/orders.py

@@ -1,5 +1,7 @@
 import logging
+
 from sqlalchemy.ext.asyncio import AsyncSession
+
 from config import PAGE_SIZE
 from db.models.orders import OrderStatus
 from dto.cart import CartDTO, CartItemDTO
@@ -9,13 +11,11 @@ from repositories.orders import OrderRepository
 logger = logging.getLogger(__name__)
 
 
-class OrderServiceException(Exception): ...
+class OrderServiceError(Exception): ...
 
 
 class OrderService:
-    def __init__(
-        self, order_repo: OrderRepository, order_items_repo: OrderItemRepository
-    ):
+    def __init__(self, order_repo: OrderRepository, order_items_repo: OrderItemRepository):
         self.order_repo = order_repo
         self.order_items_repo = order_items_repo
 
@@ -34,9 +34,7 @@ class OrderService:
         order = await self.order_repo.get_draft_order_by_user(session, customer)
 
         if not order:
-            order = await self.order_repo.create_order(
-                session, customer, OrderStatus.DRAFT
-            )
+            order = await self.order_repo.create_order(session, customer, OrderStatus.DRAFT)
 
         order_item = await self.order_items_repo.get_item_by_order_and_product(
             session, order_id=order.id, product_id=product_id
@@ -65,7 +63,7 @@ class OrderService:
         order = await self.order_repo.get_draft_order_by_user(session, customer)
 
         if not order:
-            raise OrderServiceException(
+            raise OrderServiceError(
                 "attempt of removing product from non-existing cart, potential callback_query exploit, ignoring..."
             )
 
@@ -74,7 +72,7 @@ class OrderService:
         )
 
         if not order_item:
-            raise OrderServiceException(
+            raise OrderServiceError(
                 "attempt of decreasing quantity of non-existing order_item, potential callback_query exploit, ignoring..."
             )
 
@@ -88,13 +86,11 @@ class OrderService:
 
         return new_quantity
 
-    async def clear_from_cart(
-        self, session: AsyncSession, *, customer: int, product_id: int
-    ):
+    async def clear_from_cart(self, session: AsyncSession, *, customer: int, product_id: int):
         order = await self.order_repo.get_draft_order_by_user(session, customer)
 
         if not order:
-            raise OrderServiceException(
+            raise OrderServiceError(
                 "attempt of removing product from non-existing cart, potential callback_query exploit, ignoring..."
             )
 
@@ -103,7 +99,7 @@ class OrderService:
         )
 
         if not order_item:
-            raise OrderServiceException(
+            raise OrderServiceError(
                 "attempt of decreasing quantity of non-existing order_item, potential callback_query exploit, ignoring..."
             )
 
@@ -162,9 +158,7 @@ class OrderService:
 
         return CartDTO(items=cart_items, total=total, order_id=order.id)
 
-    async def build_full_cart_dto(
-        self, session: AsyncSession, customer: int
-    ) -> CartDTO:
+    async def build_full_cart_dto(self, session: AsyncSession, customer: int) -> CartDTO:
         order = await self.order_repo.get_draft_order_by_user(session, customer)
 
         cart_items = []