from pydantic import BaseModel
from typing import Optional, List
from .product import ProductResponse


class CartItemCreate(BaseModel):
    product_id: int
    quantity: int = 1
    size: Optional[str] = None
    color: Optional[str] = None


class CartItemUpdate(BaseModel):
    quantity: Optional[int] = None


class CartItemResponse(BaseModel):
    id: int
    product_id: int
    quantity: int
    size: Optional[str]
    color: Optional[str]
    product: ProductResponse

    class Config:
        from_attributes = True


class CartResponse(BaseModel):
    id: int
    user_id: int
    items: List[CartItemResponse]

    class Config:
        from_attributes = True