#!/usr/bin/python3
# -*- coding: utf-8 -*-

# Copyright (c) 2010-2013 Roger Light <roger@atchoo.org>
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Eclipse Distribution License v1.0
# which accompanies this distribution.
#
# The Eclipse Distribution License is available at
#   http://www.eclipse.org/org/documents/edl-v10.php.
#
# Contributors:
#    Roger Light - initial implementation
# Copyright (c) 2010,2011 Roger Light <roger@atchoo.org>
# All rights reserved.

# This shows a simple example of an MQTT subscriber.

import context  # Ensures paho is in PYTHONPATH

import paho.mqtt.client as mqtt


def on_connect(mqttc, obj, flags, reason_code, properties):
    print("reason_code: "+str(reason_code))

def on_message(mqttc, obj, msg):
    print(msg.topic+" "+str(msg.qos)+" "+str(msg.payload))

def on_subscribe(mqttc, obj, mid, reason_code_list, properties):
    print("Subscribed: "+str(mid)+" "+str(reason_code_list))

def on_log(mqttc, obj, level, string):
    print(string)

# If you want to use a specific client id, use
# mqttc = mqtt.Client("client-id")
# but note that the client id must be unique on the broker. Leaving the client
# id parameter empty will generate a random id for you.
mqttc = mqtt.Client(mqtt.CallbackAPIVersion.VERSION2, transport="websockets")
mqttc.on_message = on_message
mqttc.on_connect = on_connect
mqttc.on_subscribe = on_subscribe
# Uncomment to enable debug messages
mqttc.on_log = on_log
mqttc.connect("mqtt.eclipseprojects.io", 80, 60)
mqttc.subscribe("$SYS/broker/version", 0)

mqttc.loop_forever()