from datetime import datetime
from pydantic import BaseModel


class UserCreate(BaseModel):
    """创建用户"""
    username: str
    password: str
    role: str = "submitter"  # admin=管理员, submitter=提交者


class UserResponse(BaseModel):
    """用户信息"""
    id: int
    username: str
    role: str
    created_at: datetime

    class Config:
        from_attributes = True


class UserRegister(BaseModel):
    """公开注册（仅限提交者）"""
    username: str
    password: str