#include <WiFi.h>
#include "ThingsBoard.h"
#include <PubSubClient.h>
#include <esp_wifi.h>

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

#define TOKEN "xvPF1w3K0Ff3dj62PCmO" //Access token of device Display
// IPAddress mqtt_server = "192.168.1.43";
const char* mqtt_server = "mqtt.thingsboard.cloud";
// IPAddress mqtt_server(192,168,1,7);
// Demo - mqtt://192.168.1.7:1883

WiFiClient wifiClient;
PubSubClient client(wifiClient);
int status = WL_IDLE_STATUS;
long temp;
long hum;

//////LDR//////////////////////////////////////////
#define ldrPin 32
const float gama = 0.7;
const float rl10 = 50;
///////////////////////////////////////////////////

uint8_t newMACAddress[] = {0x32, 0xAE, 0xA4, 0x07, 0x0D, 0x66};

void setup()
{
  Serial.begin(9600);
  delay(10);
  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);
// client.setCallback(callback);

Serial.print("[OLD] ESP32 Board MAC Address:  ");
Serial.println(WiFi.macAddress());
  
esp_wifi_set_mac(WIFI_IF_STA, &newMACAddress[0]);
  
Serial.print("[NEW] ESP32 Board MAC Address:  ");
Serial.println(WiFi.macAddress());


}

void loop()
{
if ( !client.connected() ) 
{
    reconnect();
}
  getData();
  delay(2000);
}

void getData()
{
  //////////LDR//////////////////////////////////////
  delay(10); // this speeds up the simulation
  int nilaiLDR = analogRead(ldrPin);
  nilaiLDR = map(nilaiLDR, 4095, 0, 1024, 0); //mengubah nilai pembacaan sensor LDR dari nilai ADC arduino menjadi nilai ADC ESP32
  float voltase = nilaiLDR / 1024.*5;
  float resistansi = 2000 * voltase / (1-voltase/5);
  float kecerahan = pow(rl10*1e3*pow(10,gama)/resistansi,(1/gama));
  Serial.print("Kecerahan = ");
  Serial.println(kecerahan);
/////////////////////////////////////////////////////////
  String payload = "{";
  payload += "\"Kecerahan\":";payload += kecerahan;
  payload += "}";

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