login

@classmethod
def get_by_value(cls, value: int) -> "QRCodeLoginEvents":
    """根据状态码获取二维码登录事件.

    Args:
        value: 二维码状态码.

    Returns:
        QRCodeLoginEvents: 对应的登录事件成员. 若无法识别则返回 OTHER.
    """
    for member in cls:
        if value in member.value:
            return member
    return cls.OTHER

def save(self, path: Path | str = ".") -> Path | None:
    """将二维码保存到本地目录.

    Args:
        path: 保存目录路径. 默认为当前目录.

    Returns:
        Path | None: 成功保存后的文件路径. 若无数据则返回 None.
    """
    if not self.data:
        return None

    directory = Path(path)
    directory.mkdir(parents=True, exist_ok=True)
    ext = mimetypes.guess_extension(self.mimetype) if self.mimetype else None
    file_path = directory / f"{self.qr_type.value}-{uuid4()}{ext or '.png'}"
    file_path.write_bytes(self.data)
    return file_path