#include <WiFi.h>

//LIBRERIAS PARA CONECTAR A ADAFRUIT
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_Client.h"

//CREDENCIALES PARA LA CONEXION A ADAFRUIT
#define AIO_SERVIDOR "io.adafruit.com"
#define AIO_PUERTOSERVIDOR 1883
#define AIO_USUARIO "SantiVR"
#define AIO_KEY "aio_YCvM15owYVLqWlCXHCW6ukoUPzWr"

WiFiClient client;

Adafruit_MQTT_Client mqtt(&client, AIO_SERVIDOR, AIO_PUERTOSERVIDOR, AIO_USUARIO, AIO_KEY);
Adafruit_MQTT_Subscribe Luz = Adafruit_MQTT_Subscribe(&mqtt, AIO_USUARIO"/feeds/boton"); 

void MQTT_connet();

void setup() {
  Serial.begin(9600);
  Serial.print("Connecting to WiFi");
  WiFi.begin("Wokwi-GUEST", "", 6);
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    Serial.print(".");
  }
  Serial.println(" Connected!");

  pinMode(LED_BUILTIN, OUTPUT);

  mqtt.subscribe(&Luz);
}

void loop() {
  MQTT_connect();

  Adafruit_MQTT_Subscribe*subscription;
  while(subscription=mqtt.readSubscription(2000)){
    if(subscription==&Luz)
      Serial.print(F("llega el dato"));
      Serial.println((char*)Luz.lastread);
      int Luz_State = atoi((char*)Luz.lastread);
      digitalWrite(LED_BUILTIN, Luz_State);
  } 
}

void MQTT_connect(){
  int8_t ret;

  if(mqtt.connected()){
    return;
  }
  
  Serial.print("Conectando a MQTT...");
  uint8_t retries = 3;

  while((ret=mqtt.connect())!=0){
   Serial.println(mqtt.connectErrorString(ret));
   Serial.println("Resintentando conectar en 5 segundos...");
   mqtt.disconnect();
   delay(5000);
    if(retries==0){
      while(1); //llamar while otra vez 
    }
  }
  Serial.println("MQTT Conectado!");
}