#include <WiFi.h>
#include <PubSubClient.h>
#include "DHTesp.h"

#define DHT_PIN 15

WiFiClient espClient;
PubSubClient mqttClient(espClient);


char tempAr[6];

DHTesp dhtSensor;


void setup() {

  Serial.begin(115200);
  setupWiFi();
  setupMqtt();

  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);

  

}

void loop() {
  if(!mqttClient.connected()){
    connectToBroker();
  }
  mqttClient.loop();


  updateTemperature();
  Serial.println(tempAr);
  mqttClient.publish("ENTC-ADMIN-TEMP", tempAr);
  delay(1000);
  

}

void setupMqtt(){
  mqttClient.setServer("test.mosquitto.org",1883);
}

void connectToBroker(){
  while (!mqttClient.connected()){
    Serial.print("Attempting MQTT connection...");
    if(mqttClient.connect("ESP32- 12345645454")){
      Serial.println("connected ");
      //subscribe
    }else{
      Serial.print("failed ");
      Serial.print(mqttClient.state());
      delay(5000);
    }
  }
}
void updateTemperature(){
  TempAndHumidity data = dhtSensor.getTempAndHumidity();
  String(data.temperature,2).toCharArray(tempAr,6);
}

void setupWiFi(){
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println("Wokwi-Guest");
  WiFi.begin("Wokwi-Guest","");

  while (WiFi.status() != WL_CONNECTED){
    delay(500);
    Serial.print(".");
  }
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());


}