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

// WiFi & Telegram Config
const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* botToken = "8072211330:AAGftCBh-8UQsICD40ExO_Ehe-0b7mGfhvU";
const char* chatID = "6750924550";

// Komponen
const int pirPin = 14;       // PIR sensor di pin D14
const int trigPin = 12;      // Ultrasonic Trig
const int echoPin = 13;      // Ultrasonic Echo
const int ledPin = 27;       // LED
const int buzzerPin = 26;    // Buzzer

WiFiClientSecure client;
UniversalTelegramBot bot(botToken, client);

void setup() {
  Serial.begin(115200);
  
  pinMode(pirPin, INPUT);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(ledPin, OUTPUT);
  pinMode(buzzerPin, OUTPUT);

  // Nonaktifkan verifikasi sertifikat
  client.setInsecure();

  WiFi.begin(ssid, password);
  Serial.print("Menghubungkan ke WiFi");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("\nWiFi Tersambung");
  bot.sendMessage(chatID, "Sistem Keamanan Aktif", "");
}

void loop() {
  bool motionDetected = digitalRead(pirPin);

  // Ultrasonic - Hitung jarak
  digitalWrite(trigPin, LOW); delayMicroseconds(2);
  digitalWrite(trigPin, HIGH); delayMicroseconds(10);
  digitalWrite(trigPin, LOW);

  long duration = pulseIn(echoPin, HIGH);
  int distance = duration * 0.034 / 2;

  if (motionDetected || distance < 30) {
    digitalWrite(ledPin, HIGH);
    digitalWrite(buzzerPin, HIGH);

    String message = "‼️ Deteksi Gerakan!";
    if (motionDetected) message += "\n🔴 Gerakan Terdeteksi oleh PIR.";
    if (distance < 30) message += "\n🔵 Objek Terdeteksi dalam " + String(distance) + " cm.";

    bot.sendMessage(chatID, message, "");

    delay(3000); // Hindari spam notifikasi
  } else {
    digitalWrite(ledPin, LOW);
    digitalWrite(buzzerPin, LOW);
  }

  delay(500);
}