#include <Wire.h>
#include <RTClib.h>
#include <LiquidCrystal_I2C.h>
#include <Arduino_FreeRTOS.h>

void TaskRTC(void *pvParameters);

RTC_DS1307 rtc;
LiquidCrystal_I2C lcd(0x27, 16, 2); // Alamat I2C tampilan LCD 16x2

const int buttonPin1 = 2;  // Tombol 1 untuk mengatur jam
const int buttonPin2 = 3;  // Tombol 2 untuk mengatur menit

void setup() {
  Serial.begin(9600);
  Wire.begin();

  lcd.init();
  lcd.backlight();

  pinMode(buttonPin1, INPUT_PULLUP);
  pinMode(buttonPin2, INPUT_PULLUP);

  rtc.begin();

  if (!rtc.begin()) {
    Serial.println("RTC tidak ditemukan! Set waktu melalui kode.");
    rtc.adjust(DateTime(__DATE__, __TIME__));
  }

  xTaskCreate(TaskRTC, "TaskRTC", 128, NULL, 5, NULL);
}

void loop() {
  DateTime now = rtc.now();
  int buttonState1 = digitalRead(buttonPin1);
  int buttonState2 = digitalRead(buttonPin2);

  if (buttonState1 == LOW) {
    delay(100); // Debouncing
    rtc.adjust(now + TimeSpan(0, 1, 0, 0)); // Menambah 1 jam
  }

  if (buttonState2 == LOW) {
    delay(100); // Debouncing
    rtc.adjust(now + TimeSpan(0, 0, 1, 0)); // Menambah 1 menit
  }

  lcd.setCursor(0, 0);
  lcd.print("Waktu: ");
  lcd.print(now.hour(), DEC);
  lcd.print(":");
  lcd.print(now.minute(), DEC);
  lcd.print(":");
  lcd.print(now.second(), DEC);

  lcd.setCursor(0, 1);
  lcd.print("Tgl: ");
  lcd.print(now.year(), DEC);
  lcd.print("/");
  lcd.print(now.month(), DEC);
  lcd.print("/");
  lcd.print(now.day(), DEC);

  delay(1000);
}