Add helper functions for Food

helpers/food_helpers.py

@@ -0,0 +1,47 @@
+from typing import List, Optional
+from pydantic import BaseModel
+from datetime import datetime
+
+class FoodItem(BaseModel):
+    id: int
+    name: str
+    description: Optional[str] = None
+    price: float
+    category: str
+    available: bool = True
+    created_at: datetime
+    updated_at: Optional[datetime] = None
+
+def validate_food_item(food_item: FoodItem) -> dict:
+    errors = {}
+    if not food_item.name.strip():
+        errors["name"] = "Name is required"
+    if food_item.price <= 0:
+        errors["price"] = "Price must be greater than zero"
+    if not food_item.category.strip():
+        errors["category"] = "Category is required"
+    return errors
+
+def get_available_food_items(food_items: List[FoodItem]) -> List[FoodItem]:
+    return [item for item in food_items if item.available]
+
+def filter_food_items_by_category(food_items: List[FoodItem], category: str) -> List[FoodItem]:
+    return [item for item in food_items if item.category.lower() == category.lower()]
+
+def sort_food_items_by_price(food_items: List[FoodItem], ascending: bool = True) -> List[FoodItem]:
+    return sorted(food_items, key=lambda x: x.price, reverse=not ascending)
+
+def get_food_menu(food_items: List[FoodItem]) -> dict:
+    menu = {}
+    for item in food_items:
+        category = item.category
+        if category not in menu:
+            menu[category] = []
+        menu[category].append({
+            "id": item.id,
+            "name": item.name,
+            "description": item.description,
+            "price": item.price,
+            "available": item.available
+        })
+    return menu