#!/usr/bin/env python3.6

#pylint: disable=line-too-long

#

#  Copyright (2019).  Fermi Research Alliance, LLC.

#  Initial Author: Pat Riehecky <riehecky@fnal.gov>

#

'''

    Example command to run from listen-on-dbus-for-mqtt-signals.py

'''

## Uncomment these for python2 support

#from __future__ import unicode_literals

#from __future__ import absolute_import

#from __future__ import print_function

import json

import sys

import textwrap

from pprint import pprint

try:

    from argparse import ArgumentParser

except ImportError:  # pragma: no cover

    print("Please install argparse - rpm: python-argparse", file=sys.stderr)

    raise

##########################################

def setup_args():

    '''

        Setup the argparse object.

        Make sure all fields have defaults so we could use this as an object

    '''

    parser = ArgumentParser(description=textwrap.dedent(__doc__))

    parser.add_argument('signal', help='The dbus signal is set here')

    return parser

##########################################

##########################################

##########################################

if __name__ == '__main__':

    PARSER = setup_args()

    ARGS = PARSER.parse_args()

    MESSAGE = json.loads(sys.stdin.read())

    print("Your dbus-signal was %s" % ARGS.signal)

    print("Your message was decoded as %s (between the lines)" % type(MESSAGE))

    print("------------------------------------------------")

    pprint(MESSAGE)

    print("------------------------------------------------")