import paho.mqtt.client as mqtt

client = None
host = None

# Arguably not needed, just want to make the client static, but here anyway.
def connect():
    if client is None or host is None:
        print("Error: Client and/or host are not initialised.")
    else:
        client.connect(host, port=1883, keepalive=60, bind_address="")
        client.loop_start()

def disconnect():
    if client is not None:
        client.loop_stop()
        client.disconnect()
    else:
        print("Error: Client is not initialised.")

def Client():
    if client is not None:
        return mqtt.Client()
    else:
        return client