from datetime import datetime from typing import Optional from pydantic import BaseModel, EmailStr class UserBase(BaseModel): email: EmailStr username: str is_active: Optional[bool] = True class UserCreate(UserBase): password: str class UserUpdate(BaseModel): email: Optional[EmailStr] = None username: Optional[str] = None password: Optional[str] = None is_active: Optional[bool] = None class UserInDB(UserBase): id: int hashed_password: str created_at: datetime updated_at: datetime class Config: from_attributes = True class User(UserBase): id: int created_at: datetime updated_at: datetime class Config: from_attributes = True class Token(BaseModel): access_token: str token_type: str class TokenData(BaseModel): username: Optional[str] = None