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

class UserRegister(BaseModel):
    username: str = Field(..., min_length=3, max_length=50)
    email: EmailStr
    password: str = Field(..., min_length=6)
    display_name: str

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

class TokenResponse(BaseModel):
    access_token: str
    token_type: str
    user_id: int