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

sen_dht = DHT22(Pin(6))
sen_dist = HCSR04(trigger_pin=17, echo_pin=16)

# MQTT Server Parameters
MQTT_CLIENT_ID = "Hugo243535Unico" # UNICO  random
#MQTT_BROKER    = "broker.hivemq.com"
MQTT_BROKER    = "test.mosquitto.org"
#MQTT_BROKER    = "192.168.20.25"  #  en docker apuntar al host local
MQTT_USER      = ""
MQTT_PASSWORD  = ""
MQTT_TOPIC     = "datos/profe/publica"



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

        dis = sen_dist.distance_cm()
        sen_dht.measure()
        tem = sen_dht.temperature()
        hum = sen_dht.humidity()
        
        message = ujson.dumps({"Temperatura":tem,
                    "Humedad":hum,
                    "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)