from pydantic import BaseModel
from typing import Optional
from datetime import datetime


class Category(BaseModel):
    id: int
    name: str
    description: Optional[str] = None
    parent_id: Optional[int] = None
    created_at: datetime

    class Config:
        from_attributes = True


class CategoryCreate(BaseModel):
    name: str
    description: Optional[str] = None
    parent_id: Optional[int] = None