#include <Wire.h>
#include <RTClib.h>
#include <LiquidCrystal.h>

RTC_DS1307 rtc;
LiquidCrystal lcd(12, 11, 5, 4, 3, 2); // Konfigurasi pin LCD
const int buttonPin = 6; // Pin untuk tombol
int hours = 12;
int minutes = 0;
bool actionPerformed = false;

void setup() {
  Wire.begin();
  rtc.begin();

  lcd.begin(16, 2); // Inisialisasi LCD 16x2
  pinMode(buttonPin, INPUT); // Mengatur pin tombol sebagai input

  lcd.print("Jam Digital");
  delay(2000);
  lcd.clear();
}

void loop() {
  DateTime now = rtc.now();
  int currentHour = now.hour();
  int currentMinute = now.minute();

  lcd.setCursor(0, 0);
  lcd.print("Jam: ");
  if (currentHour < 10) {
    lcd.print("0");
  }
  lcd.print(currentHour);
  lcd.print(":");
  if (currentMinute < 10) {
    lcd.print("0");
  }
  lcd.print(currentMinute);

  if (!actionPerformed && digitalRead(buttonPin) == HIGH) {
    adjustTime();
  }

  if (currentHour == hours && currentMinute == minutes) {
    performAction();
    actionPerformed = true;
  } else {
    actionPerformed = false;
  }

  delay(1000);
}

void adjustTime() {
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Atur Waktu");
  lcd.setCursor(0, 1);
  lcd.print("HH:MM");

  while (digitalRead(buttonPin) == LOW) {
    if (digitalRead(buttonPin) == HIGH) {
      while (digitalRead(buttonPin) == HIGH) {
        delay(100);
      }
      hours = (hours + 1) % 24;
    }

    if (digitalRead(buttonPin) == HIGH) {
      while (digitalRead(buttonPin) == HIGH) {
        delay(100);
      }
      minutes = (minutes + 1) % 60;
    }

    lcd.setCursor(0, 1);
    if (hours < 10) {
      lcd.print("0");
    }
    lcd.print(hours);
    lcd.print(":");
    if (minutes < 10) {
      lcd.print("0");
    }
    lcd.print(minutes);
  }

  rtc.adjust(DateTime(2023, 1, 1, hours, minutes, 0));
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Waktu diatur!");
  delay(2000);
  lcd.clear();
}

void performAction() {
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Aksi Dilakukan!");
  lcd.setCursor(0, 1);
  lcd.print("Waktu: ");
  if (hours < 10) {
    lcd.print("0");
  }
  lcd.print(hours);
  lcd.print(":");
  if (minutes < 10) {
    lcd.print("0");
  }
  lcd.print(minutes);
  delay(3000);
  lcd.clear();
}