from pydantic import BaseModel, Field
from typing import Optional
from decimal import Decimal

class FoodMenuBase(BaseModel):
    name: str = Field(..., min_length=1, max_length=100, description="Name of the menu item")
    description: Optional[str] = Field(None, max_length=500, description="Description of the menu item")
    price: Decimal = Field(..., ge=0, decimal_places=2, max_digits=10, description="Price of the menu item")
    category: str = Field(..., min_length=1, max_length=50, description="Category of the menu item")
    is_available: bool = Field(default=True, description="Availability status of the menu item")
    preparation_time: Optional[int] = Field(None, ge=0, description="Preparation time in minutes")
    calories: Optional[int] = Field(None, ge=0, description="Caloric content")
    ingredients: Optional[str] = Field(None, max_length=500, description="List of ingredients")
    allergens: Optional[str] = Field(None, max_length=200, description="List of allergens")
    image_url: Optional[str] = Field(None, max_length=255, description="URL of the menu item image")

class FoodMenuCreate(FoodMenuBase):
    class Config:
        schema_extra = {
            "example": {
                "name": "Margherita Pizza",
                "description": "Classic Italian pizza with tomatoes and mozzarella",
                "price": "12.99",
                "category": "Pizza",
                "is_available": True,
                "preparation_time": 20,
                "calories": 800,
                "ingredients": "Dough, tomatoes, mozzarella, basil",
                "allergens": "Gluten, dairy",
                "image_url": "https://example.com/images/margherita.jpg"
            }
        }

class FoodMenuResponse(FoodMenuBase):
    id: int = Field(..., description="Unique identifier for the menu item")

    class Config:
        orm_mode = True
        schema_extra = {
            "example": {
                "id": 1,
                "name": "Margherita Pizza",
                "description": "Classic Italian pizza with tomatoes and mozzarella",
                "price": "12.99",
                "category": "Pizza",
                "is_available": True,
                "preparation_time": 20,
                "calories": 800,
                "ingredients": "Dough, tomatoes, mozzarella, basil",
                "allergens": "Gluten, dairy",
                "image_url": "https://example.com/images/margherita.jpg"
            }
        }