from pydantic import BaseModel, EmailStr
from typing import Optional
from datetime import datetime

class UserBase(BaseModel):
    email: EmailStr
    username: str
    is_active: bool = True
    is_superuser: bool = False

class UserCreate(UserBase):
    password: str

class UserUpdate(UserBase):
    password: Optional[str] = None

class UserResponse(UserBase):
    id: int
    created_at: datetime
    updated_at: datetime

    class Config:
        from_attributes = True