scwrypts/py/twilio/send-sms.py

#!/usr/bin/env python
from scwrypts import execute
#####################################################################
from sys import stderr

from scwrypts.env import getenv
from scwrypts.twilio import send_sms


description = 'send a simple SMS through twilio'
parse_args = [
        ( ['-t', '--to'], {
            'dest'     : 'to',
            'help'     : 'phone number of the receipient',
            'required' : False,
            'default'  : getenv('TWILIO__DEFAULT_PHONE_TO', required=False),
            }),
        ( ['-f', '--from'], {
            'dest'     : 'from_',
            'help'     : 'phone number of the receipient',
            'required' : False,
            'default'  : getenv('TWILIO__DEFAULT_PHONE_FROM', required=False),
            }),
        ( ['-b', '--body'], {
            'dest'     : 'body',
            'help'     : 'message body',
            'required' : False,
            }),
        ( ['--max-char-count'], {
            'dest'     : 'max_char_count',
            'help'     : 'separate message into parts by character count (1 < N <= 1500)',
            'required' : False,
            'default'  : 300,
            }),
        ]

def main(args, stream):
    if args.body is None:
        print(f'reading input from {stream.input.name}', file=stderr)
        args.body = ''.join(stream.readlines()).strip()

    if len(args.body) == 0:
        args.body = 'PING'

    if args.from_ is None:
        raise MissingFlagAndEnvironmentVariableError(['-f', '--from'], 'TWILIO__DEFAULT_PHONE_FROM')

    if args.to is None:
        raise MissingFlagAndEnvironmentVariableError(['-t', '--to'], 'TWILIO__DEFAULT_PHONE_TO')

    send_sms(
            to = args.to,
            from_ = args.from_,
            body = args.body,
            max_char_count = args.max_char_count,
            stream = stream,
            )


#####################################################################
if __name__ == '__main__':
    execute(main, description, parse_args)