Move Method Body on Repositroy and inject Repository on Service

Francesco.Recipes.World/Repositories/ShoppingList/IShoppingListRepository.cs

@@ -17,5 +17,8 @@
         Task DeleteShoppingListAsync(Guid shoppingListId);
 
         Task<Recipe?> GetRecipeByNameAndImageAsync(string recipeName, string imageFileName);
+
+        Task<int> GetShoppingListRecipeCountAsync(Guid shoppingListId);
+
     }
 }

Francesco.Recipes.World/Repositories/ShoppingList/ShoppingListRepository.cs

@@ -167,5 +167,12 @@
                 .Include(r => r.MediaFiles.Where(mf => mf.FileName == imageFileName))
                 .FirstOrDefaultAsync();
         }
+
+        public async Task<int> GetShoppingListRecipeCountAsync(Guid shoppingListId)
+        {
+            return await _context.RecipeShoppingLists
+                .Where(rsl => rsl.ShoppingList.Id == shoppingListId)
+                .CountAsync();
+        }
     }
 }