#!/usr/bin/env python3

import argparse

from io import StringIO as _StringIO
from typing import IO, Any
import zulip

class StringIO(_StringIO):
    name = ''  # https://github.com/python/typeshed/issues/598

usage = """upload-file [options]

Upload a file, and print the corresponding URI.

Example: upload-file --file-path=cat.png

Specify your Zulip API credentials and server in a ~/.zuliprc file or using the options.
If no --file-path is specified, a placeholder text file will be used instead.
"""

parser = zulip.add_default_arguments(argparse.ArgumentParser(usage=usage))
parser.add_argument('--file-path', required=True)
options = parser.parse_args()

client = zulip.init_from_options(options)

if options.file_path:
    file = open(options.file_path, 'rb')  # type: IO[Any]
else:
    file = StringIO('This is a test file.')
    file.name = 'test.txt'

response = client.upload_file(file)

try:
    print('File URI: {}'.format(response['uri']))
except KeyError:
    print('Error! API response was: {}'.format(response))
