fixing DQ issues

app/services/auth_service.py

@@ -29,7 +29,7 @@ class AuthService:
 
     def register_user(self, db: Session, user_data: UserRegister) -> User:
         """
-        Register a new user
+        Register a new user.
 
         Args:
             db: Database session

app/services/marketplace_service.py

@@ -22,12 +22,14 @@ logger = logging.getLogger(__name__)
 
 
 class MarketplaceService:
+    """Service class for Marketplace operations following the application's service pattern."""
+
     def __init__(self):
         """Class constructor."""
         pass
 
     def validate_shop_access(self, db: Session, shop_code: str, user: User) -> Shop:
-        """Validate that the shop exists and user has access to it"""
+        """Validate that the shop exists and user has access to it."""
         # Explicit type hint to help type checker shop: Optional[Shop]
         # Use case-insensitive query to handle both uppercase and lowercase codes
         shop: Optional[Shop] = (
@@ -67,7 +69,8 @@ class MarketplaceService:
         db.refresh(import_job)
 
         logger.info(
-            f"Created marketplace import job {import_job.id}: {request.marketplace} -> {shop.shop_name} (shop_code: {shop.shop_code}) by user {user.username}"
+            f"Created marketplace import job {import_job.id}: "
+            f"{request.marketplace} -> {shop.shop_name} (shop_code: {shop.shop_code}) by user {user.username}"
         )
 
         return import_job

app/services/product_service.py

@@ -23,6 +23,8 @@ logger = logging.getLogger(__name__)
 
 
 class ProductService:
+    """Service class for Product operations following the application's service pattern."""
+
     def __init__(self):
         """Class constructor."""
         self.gtin_processor = GTINProcessor()

app/services/shop_service.py

@@ -8,7 +8,6 @@ This module provides classes and functions for:
 """
 
 import logging
-
 from typing import List, Optional, Tuple
 
 from fastapi import HTTPException
@@ -28,7 +27,7 @@ class ShopService:
         self, db: Session, shop_data: ShopCreate, current_user: User
     ) -> Shop:
         """
-        Create a new shop
+        Create a new shop.
 
         Args:
             db: Database session
@@ -256,19 +255,19 @@ class ShopService:
         return shop_products, total
 
     def get_shop_by_id(self, db: Session, shop_id: int) -> Optional[Shop]:
-        """Get shop by ID"""
+        """Get shop by ID."""
         return db.query(Shop).filter(Shop.id == shop_id).first()
 
     def shop_code_exists(self, db: Session, shop_code: str) -> bool:
-        """Check if shop code already exists"""
+        """Check if shop code already exists."""
         return db.query(Shop).filter(Shop.shop_code == shop_code).first() is not None
 
     def get_product_by_id(self, db: Session, product_id: str) -> Optional[Product]:
-        """Get product by product_id"""
+        """Get product by product_id."""
         return db.query(Product).filter(Product.product_id == product_id).first()
 
     def product_in_shop(self, db: Session, shop_id: int, product_id: int) -> bool:
-        """Check if product is already in shop"""
+        """Check if product is already in shop."""
         return (
             db.query(ShopProduct)
             .filter(
@@ -279,11 +278,11 @@ class ShopService:
         )
 
     def is_shop_owner(self, shop: Shop, user: User) -> bool:
-        """Check if user is shop owner"""
+        """Check if user is shop owner."""
         return shop.owner_id == user.id
 
     def can_view_shop(self, shop: Shop, user: User) -> bool:
-        """Check if user can view shop"""
+        """Check if user can view shop."""
         if user.role == "admin" or self.is_shop_owner(shop, user):
             return True
         return shop.is_active and shop.is_verified

app/services/stock_service.py

@@ -23,6 +23,7 @@ logger = logging.getLogger(__name__)
 
 class StockService:
     """Service class for stock operations following the application's service pattern."""
+
     def __init__(self):
         """Class constructor."""
         self.gtin_processor = GTINProcessor()