import bcrypt


def verify_password(plain_password: str, hashed_password: str) -> bool:
    """验证密码（哈希非 bcrypt 或损坏时返回 False，避免抛错）"""
    if not plain_password or not hashed_password:
        return False
    hp = hashed_password if isinstance(hashed_password, str) else str(hashed_password)
    if not hp.startswith("$2"):
        return False
    try:
        return bcrypt.checkpw(
            plain_password.encode("utf-8"),
            hp.encode("utf-8"),
        )
    except (ValueError, TypeError):
        return False


def get_password_hash(password: str) -> str:
    """生成密码哈希"""
    return bcrypt.hashpw(password.encode('utf-8'), bcrypt.gensalt()).decode('utf-8')