#if defined(ESP8266)
#include <ESP8266WiFi.h>
#elif defined(ESP32)
#include <WiFi.h>
#endif
#include <ThingsBoard.h>
#include <PubSubClient.h>
#include <DHTesp.h>

#define LDR 36
#define DHT_PIN 15
#define POT 34

const float GAMMA = 0.7;
const float RL10 = 50;

DHTesp dhtSensor;

const char *ssid = "Wokwi-GUEST";
const char *password = "";

#define TOKEN "0KCqojrFCIitIfLw8IHG" //Access token of device Display
const char* mqtt_server = "thingsboard.cloud";

WiFiClient wifiClient;
PubSubClient client(wifiClient);
int status = WL_IDLE_STATUS;

void setup() {
  Serial.begin(9600);
  delay(10);
  pinMode(LDR, INPUT);
  pinMode(POT, INPUT);
  Serial.print(" Connect to : ");
  Serial.println(ssid);
  WiFi.begin(ssid, password);
  //  WiFi.config(IP, NETWORK, NETMASK, DNS);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print("...");
  }
  Serial.print("\n");
  Serial.print("IP address : ");
  Serial.print(WiFi.localIP());
  Serial.print("\n");
  Serial.print("Connect to : ");
  Serial.println(ssid);
  client.setServer( mqtt_server, 1883);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
}

void loop() {
  if ( !client.connected() )
  {
    reconnect();
  }
  getData();
  delay(3000);
}

void getData() {
  int nilai_ldr = analogRead(LDR);
  int nilai_pot = analogRead(POT);

  float voltage = nilai_ldr / 4095. * 5;
  float resistance = 2000 * voltage / (1 - voltage / 5);
  float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));

  float pot = map(nilai_pot, 0, 4095, 0, 255);

  float temp = dhtSensor.getTemperature();
  float humi = dhtSensor.getHumidity();

  String payload = "{";
  payload += "\"Intensitas Cahaya\":";
  payload += lux;
  payload += ",";
  payload += "\"Temperature\":";
  payload += temp;
  payload += ",";
  payload += "\"Humidity\":";
  payload += humi;
  payload += ",";
  payload += "\"ADC Potentiometer\":";
  payload += pot;
  payload += "}";

  char attributes[1000];
  payload.toCharArray(attributes, 1000 );
  client.publish( "v1/devices/me/telemetryadam", attributes);
  client.publish( "v1/devices/me/attributesadam", attributes);
  Serial.println( attributes );
}

void reconnect() {
  // Loop until we're reconnected
  while (!client.connected()) {
    status = WiFi.status();
    if ( status != WL_CONNECTED) {
      WiFi.begin(ssid, password);
      while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        Serial.print(".");
      }
      Serial.println("Connected to AP");
    }
    Serial.print("Connecting to ThingsBoard node ...");
    // Attempt to connect (clientId, username, password)
    if ( client.connect("3a90f960-1ad1-11ed-b480-cbe4cea4aa70", TOKEN, "") ) {
      Serial.println( "[DONE]" );
    } else {
      Serial.print( "[FAILED] [ rc = " );
      Serial.println( " : retrying in 5 seconds]" );
      delay( 500 );
    }
  }
}