//mengakses library wifi untuk esp32 
#include <WiFi.h>
#include <PubSubClient.h>

//menyiapkan data akun konek ke wifi
const char* ssid = "Wokwi-GUEST";
const char* password = "";

//menyiapkan data mtqq
const char* mqtt_server = "broker.hivemq.com";

//membuat objek baru untuk mengelola koneksi internet
WiFiClient espClient;

//membuat objek baru untuk
PubSubClient client(espClient);

void connectwifi();

void setup() {
  Serial.begin(115200);
  connectwifi();
  //connectMQTT();

  client.setServer(mqtt_server, 1883);

  while (!client.connected()) {
    Serial.print("Attempting MQTT connection...");
    // perintah membuat client id agar mqtt broker mengenali board yang kita gunakan
    String clientId = "ESP32Client-";
    clientId += String(random(0xffff), HEX);
    // Attempt to connect
    if (client.connect(clientId.c_str())) {
      Serial.println("Connected");
      // Once connected, publish an announcement...
      client.publish("/sija/aya", "bocah sija stembayo"); //perintah publish data ke alamat topik yang di setting
      // ... and resubscribe
      client.subscribe("/sija/aya"); //perintah subscribe data ke mqtt broker
    } else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 5 seconds");
      // Wait 5 seconds before retrying
      delay(5000);
    }
  }
  }


void loop() {
  //connectMQTT();
}

void connectwifi(){
   //konfigurasi koneksi wifi
  WiFi.mode(WIFI_STA); //setting wifi chip sebagai station/client
  WiFi.begin(ssid, password); //koneksi ke jaringan wifi

  //proses koneksi
  while (WiFi.status() != WL_CONNECTED) { //perintaah tunggu esp32 sampi
    delay(500);
    Serial.print(".");
  }
  
  //koneksi wifi berhasil
  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("ip address");
  Serial.println(WiFi.localIP());
  
}