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

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

const char *mqtt_host = "broker.emqx.io";
const int mqtt_port = 1883;
const char *topic_pub = "XIMIPA3";


String client_id = "mqttx_8973w333";

WiFiClient espClient;
PubSubClient client(espClient);
int waktu_sebelum, waktu_interval = 1*1000;

void setup() {
  Serial.begin(115200);

  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print("Connecting to wifi...");
  }
  Serial.println("Terhubung ke WiFi");

  client.setServer(mqtt_host, mqtt_port);
    while (!client.connected()) {
        if (client.connect(client_id.c_str())) {
            Serial.println("Terhubung ke mqtt broker");
        } else {
            Serial.print("Gagal Terhubung ");
            Serial.print(client.state());
            delay(2000);
        }
    }
    // untuk mengirim data bisa menggunakan perintah variable.publish()
    // publish and subscribe (send data sekali saja)
    client.publish(topic_pub, "hi reyy");
    waktu_sebelum = millis();
}

// jika ingin mengirimkan pesan secara berulang
void loop() {
//  client.loop();
//   if(millis() - waktu_sebelum >= waktu_interval) {
//      client.publish(topic_pub, "hi reyy");
//     Serial.println("hi reyy");
//     waktu_sebelum = millis();
//  }

 client.publish(topic_pub, "hi reyy");
    waktu_sebelum = millis();
}