// NIM = 5220411106
// Nama = Nafis Fausta Zaki

#include <WiFi.h>
#include <WiFiClientSecure.h>
#include <UniversalTelegramBot.h>
#include <DHT.h>

// Koneksi WiFi
const char* ssid = "wokwi-GUEST";
const char* password = "";

// Token bot Telegram dan chat ID
const char* telegramToken = "7553316491:AAH7sjoV5-N4jprgEp0mm--fbHaOQkzTjoY";
const char* host = "api.telegram.org";
WiFiClientSecure client;
UniversalTelegramBot bot(telegramToken, client);
String chat_id = "942748106"; // Ganti dengan chat ID Anda

// LED dan DHT
const int ledPin = 2;
#define DHTPIN 4
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);

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

  // Koneksi ke WiFi
  WiFi.begin(ssid, password);
  Serial.print("Menghubungkan ke WiFi...");
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.print(".");
  }
  Serial.println("\nTerhubung ke WiFi!");
  Serial.print("Alamat IP: ");
  Serial.println(WiFi.localIP());

  // Setup keamanan TLS (sementara insecure di Wokwi)
  client.setInsecure();

  // Setup sensor DHT22 dan LED
  dht.begin();
  pinMode(ledPin, OUTPUT);
}

void loop() {
  // Cek pesan baru dari Telegram
  int numNewMessages = bot.getUpdates(bot.last_message_received + 1);

  while (numNewMessages) {
    // Ambil pesan dan nama pengirim
    String message = bot.messages[0].text;
    String fromName = bot.messages[0].from_name;

    Serial.println("📩 Pesan baru untuk Nafis Fausta Zaki dari: " + fromName + " → " + message);

    // /start_led - Menyalakan LED
    if (message == "/start_led") {
      digitalWrite(ledPin, HIGH);
      bot.sendMessage(chat_id, "✅ LED dinyalakan oleh Nafis Fausta Zaki 💡", "");
    }
    // /stop_led - Mematikan LED
    else if (message == "/stop_led") {
      digitalWrite(ledPin, LOW);
      bot.sendMessage(chat_id, "🛑 LED dimatikan oleh Nafis Fausta Zaki ✋", "");
    }
    // /check_status - Kirim data sensor
    else if (message == "/check_status") {
      float temperature = dht.readTemperature();
      float humidity = dht.readHumidity();

      if (isnan(temperature) || isnan(humidity)) {
        bot.sendMessage(chat_id, "❌ Gagal membaca data dari DHT22. Silakan coba lagi.", "");
      } else {
        String msg = "📊 *Data Sensor oleh Nafis Fausta Zaki*\n";
        msg += "🌡 Suhu: " + String(temperature) + " °C\n";
        msg += "💧 Kelembapan: " + String(humidity) + " %";
        bot.sendMessage(chat_id, msg, "Markdown");
      }
    }

    // Catat ID pesan terakhir
    bot.last_message_received = bot.messages[0].update_id;
    numNewMessages = bot.getUpdates(bot.last_message_received + 1);
  }

  delay(1000); // Cek pesan tiap 1 detik
}