#include <WiFi.h>

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

WiFiClient espClient;

int button_pin = 34;
int led_merah  = 5;

#include "PubSubClient.h"
PubSubClient client(espClient);
const char* mqttServer = "broker.emqx.io";
int port = 1883;
char clientId[] = "Febri1STN23";
char topic_led[] = "/wabot/mqtt/GarudArdumeka/lampu";
char topic_suhu[] = "/wabot/mqtt/GarudArdumeka/suhu";
#define MSG_BUFFER_SIZE (50)
char msg[MSG_BUFFER_SIZE];

void wifiConnect() {
 WiFi.mode(WIFI_STA);
 WiFi.begin(ssid, password);
 while (WiFi.status() != WL_CONNECTED) {
 delay(500);
 Serial.print(".");
 }
 Serial.println("Terhubung ke WiFi");
 Serial.println("Alamat IP: ");
 Serial.println(WiFi.localIP());
}

void mqttReconnect() {
 while (!client.connected()) {
 Serial.print("Menghubungkan ke MQTT Server... ");
 if (client.connect(clientId)) {
 Serial.print(clientId);
 Serial.println(" Terhubung");
 client.subscribe(topic_led);
 } else {
 Serial.print("Gagal Terhubung, stataus=");
 Serial.print(client.state());
 Serial.println(" tunggu 2 detik");
 delay(2000);
 }
 }
}

void callback(char* topic, byte* message, unsigned int length) {
  Serial.print("Pesan Baru, Topik: ");
  Serial.print(topic);
  Serial.print(" Pesan: ");
  String stMessage;
  for (int i = 0; i < length; i++) {stMessage += (char)message[i];}
  Serial.println(stMessage);
  if(String(topic) == topic_led){
    if(stMessage == "ON"){digitalWrite(led_merah, HIGH);}
    if(stMessage == "OFF"){digitalWrite(led_merah, LOW);}
  }
}

void setup() {
      Serial.begin(115200);
      pinMode(led_merah,OUTPUT);
      pinMode(button_pin,INPUT);
      wifiConnect();
      client.setServer(mqttServer, port);
      client.setCallback(callback);
}

unsigned const long jeda = 10000;
unsigned long zero = 0;

void loop() {
 delay(10);
 if(!client.connected()){mqttReconnect();}
 client.loop();
 if(millis() - zero >= jeda){
        Serial.println("Mqtt Publish..." + String(digitalRead(button_pin)));
        snprintf (msg, MSG_BUFFER_SIZE,"%ld", digitalRead(button_pin));
        client.publish(topic_suhu, msg);
        bool kirim_suhu = true;
        zero = millis();
                            }
}