#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <WiFi.h>
#include <WiFiClientSecure.h>
#include <UniversalTelegramBot.h>
#include <ArduinoJson.h>

// Initialize the LCD
LiquidCrystal_I2C lcd(0x27, 16, 2);

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

const char* botToken = "6805490177:AAF--H_Oxpq2Mm3B-e5qVKpmjwgTvEQb7Bw";
const char* chatID = "2061141342";

const int pirPin = 12;
const int buzzerPin = 2;
const int ledPin = 12;

WiFiClientSecure secured_client;
UniversalTelegramBot bot(botToken, secured_client);

int motionCount = 0;

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

  pinMode(ledPin, OUTPUT);
  digitalWrite(ledPin, LOW);
  pinMode(pirPin, INPUT);
  pinMode(buzzerPin, OUTPUT);
  digitalWrite(buzzerPin, LOW);

  // Initialize LCD
  lcd.begin(16, 2);
  lcd.init();
  lcd.backlight();

  WiFi.begin(ssid, password);
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Connecting to");
  lcd.setCursor(0, 1);
  lcd.print("WiFi...");

  while (WiFi.status() != WL_CONNECTED) {
    delay(250);
  }

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("WiFi connected");
  lcd.setCursor(0, 1);
  lcd.print(ssid);
  delay(2000);

  configTime(25200, 0, "pool.ntp.org", "time.nist.gov");

  secured_client.setInsecure();
}

void loop() {
  int pirStatus = digitalRead(pirPin);

  if (pirStatus == HIGH) {
    digitalWrite(ledPin, HIGH);
    tone(buzzerPin, 1000);
    delay(1000);
    noTone(buzzerPin);

    motionCount++;
    String message = "MAS ROSYID ADA PERGERAKKAN DI RUANGAN!!! " + getLocalTimeAsString();
    bot.sendMessage(chatID, message, "");

    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("WiFi connected");
    lcd.setCursor(0, 1);
    lcd.print("Motions: ");
    lcd.print(motionCount);

    delay(10000);
  }

  digitalWrite(ledPin, LOW);
  delay(500);
}

String getLocalTimeAsString() {
  struct tm timeinfo;
  if (!getLocalTime(&timeinfo)) {
    return "Gagal mendapatkan waktu.";
  }

  char buffer[30];
  strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M:%S", &timeinfo);

  return String(buffer);
}