import RPi.GPIO as gpio
import time,sys
from paho.mqtt import client as mqtt_client

#mqtt settings
broker = '192.168.2.2'
port = 1883
uname = 'ecyhass'
pw = 'ecyhass1216'
topic_sensor = 'garage/door_sensor'
topic_control = 'garage/door_control'
client_id = str(210)

#GPIO settings
relay_pin = 15
sensor_pin = 19
#gpio setup
gpio.setmode(gpio.BOARD)
gpio.setup(relay_pin,gpio.OUT)
gpio.setup(sensor_pin,gpio.IN,pull_up_down=gpio.PUD_DOWN)

def mqtt_connect():
    def on_connect(client, userdata, flags, rc):
        if rc == 0:
            print("Connected to MQTT Broker")
        else:
            print("Failed to Connect MQTT")

    client = mqtt_client.Client(client_id)
    client.username_pw_set(uname,pw)
    client.on_connect = on_connect
    client.connect(broker,port)
    return client

def mqtt_subscribe(client):
    def on_message(client, userdata, msg):
        print(f"Received `{msg.payload.decode()}` from `{msg.topic}` topic")

    client.subscribe(topic_control)
    client.on_message = on_message

def set_relay(value):
    if value==1:
        gpio.output(relay_pin,gpio.HIGH)
    else:
        gpio.output(relay_pin,gpio.LOW)

def get_sensor():
    return gpio.input(sensor_pin)

def set_from_sensor():
    set_relay(get_sensor())

def end():
    gpio.cleanup()
    exit()

def main():
    mqtt_subscribe(mqtt_connect())
    while(1):
        continue
#        set_from_sensor()
#        time.sleep(.25)



if __name__=="__main__":
    main()