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

const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* mqtt_server = "cobaaja.cloud.shiftr.io";
const int mqtt_port = 1883;
const char* mqtt_user = "cobaaja";
const char* mqtt_password = "9TZCgDsHhcGlRVJh";

// Define LED pins for each room
const int ledPinDapur = 27;
const int ledPinRuangTamu = 14;
const int ledPinRuangMakan = 13;
const int ledPinToilet = 12;

WiFiClient espClient;
PubSubClient client(espClient);

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

  // Set LED pins as output and turn them off initially
  pinMode(ledPinDapur, OUTPUT);
  pinMode(ledPinRuangTamu, OUTPUT);
  pinMode(ledPinRuangMakan, OUTPUT);
  pinMode(ledPinToilet, OUTPUT);
  digitalWrite(ledPinDapur, LOW);
  digitalWrite(ledPinRuangTamu, LOW);
  digitalWrite(ledPinRuangMakan, LOW);
  digitalWrite(ledPinToilet, LOW);

  // Connect to WiFi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");

  // Connect to MQTT broker
  client.setServer(mqtt_server, mqtt_port);
  client.setCallback(callback);
  while (!client.connected()) {
    Serial.println("Connecting to MQTT...");
    if (client.connect("ESP32Client", mqtt_user, mqtt_password)) {
      Serial.println("Connected to MQTT broker");

      // Subscribe to the topics for each room
      client.subscribe("esp32/dapur");
      client.subscribe("esp32/ruang_tamu");
      client.subscribe("esp32/ruang_makan");
      client.subscribe("esp32/toilet");
    } else {
      Serial.print("Failed to connect, rc=");
      Serial.print(client.state());
      delay(2000);
    }
  }
}

void callback(char* topic, byte* payload, unsigned int length) {
  String message;
  for (unsigned int i = 0; i < length; i++) {
    message += (char)payload[i];
  }

  Serial.print("Message received on topic: ");
  Serial.print(topic);
  Serial.print(". Message: ");
  Serial.println(message);

  // Control LEDs based on the room and message
  if (String(topic) == "esp32/dapur") {
    digitalWrite(ledPinDapur, message == "ON" ? HIGH : LOW);
    client.publish("esp32/dapur/status", message.c_str());
  } else if (String(topic) == "esp32/ruang_tamu") {
    digitalWrite(ledPinRuangTamu, message == "ON" ? HIGH : LOW);
    client.publish("esp32/ruang_tamu/status", message.c_str());
  } else if (String(topic) == "esp32/ruang_makan") {
    digitalWrite(ledPinRuangMakan, message == "ON" ? HIGH : LOW);
    client.publish("esp32/ruang_makan/status", message.c_str());
  } else if (String(topic) == "esp32/toilet") {
    digitalWrite(ledPinToilet, message == "ON" ? HIGH : LOW);
    client.publish("esp32/toilet/status", message.c_str());
  }
}

void loop() {
  if (!client.connected()) {
    while (!client.connected()) {
      Serial.println("Reconnecting to MQTT...");
      if (client.connect("ESP32Client", mqtt_user, mqtt_password)) {
        Serial.println("Connected to MQTT broker");
        client.subscribe("esp32/dapur");
        client.subscribe("esp32/ruang_tamu");
        client.subscribe("esp32/ruang_makan");
        client.subscribe("esp32/toilet");
      } else {
        Serial.print("Failed to connect, rc=");
        Serial.print(client.state());
        delay(2000);
      }
    }
  }

  client.loop();
}