#include <ESP8266WiFi.h>
#include <PubSubClient.h>

#include "DHT.h"

#define DHTPIN 2     // what digital pin we're connected to

#define DHTTYPE DHT11   // DHT 22  (AM2302), AM2321

/*const char* ssid = "ESP8266";
const char* password = "password";*/
/*const char* ssid = "bigChief2";
const char* password = "987654321";*/
const char* ssid = "VOO-375468";
const char* password = "UYQQMTHF";
const char* mqtt_server = "m21.cloudmqtt.com";

char message_buff[100];

WiFiClient espClient;
PubSubClient client(espClient);

const int Led = 14;

// Connect pin 1 (on the left) of the sensor to +5V
// NOTE: If using a board with 3.3V logic like an Arduino Due connect pin 1
// to 3.3V instead of 5V!
// Connect pin 2 of the sensor to whatever your DHTPIN is
// Connect pin 4 (on the right) of the sensor to GROUND
// Connect a 10K resistor from pin 2 (data) to pin 1 (power) of the sensor

// Initialize DHT sensor.
// Note that older versions of this library took an optional third parameter to
// tweak the timings for faster processors.  This parameter is no longer needed
// as the current DHT reading algorithm adjusts itself to work on faster procs.
DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(115200);
  Serial.println("DHT22 test!");
  WiFi.softAPdisconnect(true);
  dht.begin();

  pinMode(Led, OUTPUT);
  
  WiFi.begin(ssid, password);
  Serial.println("");
  digitalWrite(Led, LOW);

  // Wait for connection
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.print("Connected to ");
  Serial.println(ssid);
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());
  digitalWrite(Led, HIGH);
  client.setServer(mqtt_server, 18932);

  /*server.on("/temp", []() {
    String page = "{ \"temperature\":" + String((int)dht.readTemperature()) + ", \"humidity\":" + String((int)dht.readHumidity())+"}";
    server.send(200, "text/plain", page);
  });*/

  //client = PubSubClient(mqtt_server, 18932, callback);

}

void reconnect() {
  // Loop until we're reconnected
  while (!client.connected()) {
    Serial.print("Attempting MQTT connection...");
    // Attempt to connect
    if (client.connect("ESP8266Client-TempSensor", "oilkfgjy", "lEyZb90q49Rf")) {
      Serial.println("connected");
    } else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 5 seconds");
      delay(5000);
    }
  }
}

void loop() {
  if(WiFi.status() != WL_CONNECTED){
  digitalWrite(Led, LOW);
  Serial.println("Trying to reconnect !");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("Connected !");
}else{
  if(digitalRead(Led)==LOW){
    digitalWrite(Led, HIGH);
  }
}

if (!client.connected()) {
    digitalWrite(Led, LOW);
    reconnect();
  }else{
    digitalWrite(Led, HIGH);
    }
  client.loop();

  String pubString = String((int)dht.readTemperature());
  String pubStringPost =  String("Degree="+pubString);
  pubStringPost.toCharArray(message_buff, pubStringPost.length()+1);
  
  client.publish("DegreeHome",message_buff);  

  delay(5000);
}