from typing import Union
import base64
from urllib.parse import quote, urlencode
from dock.govs import govs_api


async def get_download_request(tenant_id: Union[int, str], file_url: str):
    """
    创建从省12345下载文件的请求对象。方法仅创建请求对象，并未实际提交请求，具体由调度方法处理。

    :param tenant_id: 租户id
    :param file_url: 文件url
    """
    api_url = '/file/api/system/downloadPermission'
    b64_file_url = base64.b64encode(file_url.encode()).decode()
    b64_file_url = quote(b64_file_url, safe="~*'()!.-_")
    body = {
        'tenantId': tenant_id,
        'fileUrl': b64_file_url
    }
    api_url += f'?{urlencode(body)}'
    return await govs_api.new_api_request(api_url, {})