from machine import Pin
from utime import sleep, sleep_ms
from dht import DHT11, DHT22
from hcsr04 import HCSR04
import network, time
import ujson
from neopixel import NeoPixel 
from umqtt.simple import MQTTClient

MQTT_CLIENT_ID = "clientPrrOcQ7Rhugo"
MQTT_BROKER    = "broker.hivemq.com"
MQTT_USER      = ""
MQTT_PASSWORD  = ""
MQTT_TOPIC     = "empresa/servicio/monitoreo/nuevo"


sen_tem = DHT22(Pin(12))
sen_dis = HCSR04(trigger_pin=15, echo_pin=4)
np = NeoPixel(Pin(16), 1)

np[0]=(255,0,0)
np.write()

def conectaWifi (red, password):
      global miRed
      miRed = network.WLAN(network.STA_IF)     
      if not miRed.isconnected():              #Si no está conectado…
          miRed.active(True)                   #activa la interface
          miRed.connect(red, password)         #Intenta conectar con la red
          print('Conectando a la red', red +"…")
          timeout = time.time ()
          while not miRed.isconnected():           #Mientras no se conecte..
              if (time.ticks_diff (time.time (), timeout) > 10):
                  return False
      return True

if conectaWifi("Wokwi-GUEST", ""):

    print ("Conexión exitosa!")
    print('Datos de la red (IP/netmask/gw/DNS):', miRed.ifconfig())

    np[0]=(0,255,0)
    np.write()

    print("Conectando a  MQTT server... ",MQTT_BROKER,"...", end="")
    client = MQTTClient(MQTT_CLIENT_ID, MQTT_BROKER, user=MQTT_USER, password=MQTT_PASSWORD)
    client.connect()

    np[0]=(0,0,255)
    np.write()

    while True:

        sen_tem.measure()
        tem = sen_tem.temperature()
        hum = sen_tem.humidity()
        dis = sen_dis.distance_cm()
        #print("T: {}°C, H: {}% D:{:.1f}cm".format(tem, hum, dis))

        message = ujson.dumps({
            "Humedad":hum,
            "Temperatura":tem,
            "Distancia":dis,
            })

        print("Reportando a  MQTT topic {}: {}".format(MQTT_TOPIC, message))
        client.publish(MQTT_TOPIC, message)

        sleep(2)


else:
    print ("Imposible conectar")
    miRed.active (False)