# models.py
from pydantic import BaseModel
from typing import Optional

class UserCreate(BaseModel):
    username: str
    password: str
    is_admin: bool = False

class UserLogin(BaseModel):
    username: str
    password: str

class UserResponse(BaseModel):
    id: int
    username: str
    is_admin: bool

class Token(BaseModel):
    access_token: str
    token_type: str
    session_id: Optional[str] = None
    user: Optional[UserResponse] = None