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

RTC_DS3231 rtc;
char daysOfTheWeek[7][12] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
char months[12][4] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
LiquidCrystal_I2C lcd(0x27, 16, 2);

const int buttonPin = 4;
const int ledPin = 2;

int buttonState = 0;
int visitorCount = 0;

void setup() {
  Serial.begin(115200);
  lcd.init();
  lcd.begin(16, 2);
  lcd.backlight();
  delay(3000);
  Wire.begin();
  if (!rtc.begin()) {
    Serial.println("RTC tidak terbaca");
    while (1);
  }
  if (rtc.lostPower()) {
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  }
  pinMode(buttonPin, INPUT);
  pinMode(ledPin, OUTPUT);
}

void loop() {
  DateTime now = rtc.now();
  Serial.print(daysOfTheWeek[now.dayOfTheWeek()]);
  Serial.print(", ");
  Serial.print(now.day(), DEC);
  Serial.print('/');
  Serial.print(now.month(), DEC);
  Serial.print('/');
  Serial.print(now.year(), DEC);
  Serial.print(' ');
  Serial.print(now.hour(), DEC);
  Serial.print(':');
  Serial.print(now.minute(), DEC);
  Serial.print(':');
  Serial.println(now.second(), DEC);
  Serial.println("Visitor: ");
  Serial.println(visitorCount);

  lcd.setCursor(2, 0);
  lcd.print(now.day(), DEC);
  lcd.print(" ");
  lcd.print(months[now.month() - 1]);
  lcd.print(" ");
  lcd.print(now.year(), DEC);

  lcd.setCursor(4, 1);
  if (now.hour() < 10) {
    lcd.print("0");
  }
  lcd.print(now.hour(), DEC);
  lcd.print(":");
  if (now.minute() < 10) {
    lcd.print("0");
  }
  lcd.print(now.minute(), DEC);
  lcd.print(":");
  if (now.second() < 10) {
    lcd.print("0");
  }
  lcd.print(now.second(), DEC);

  buttonState = digitalRead(buttonPin);
  if (buttonState == HIGH) {
    digitalWrite(ledPin, HIGH);
    // Tambahkan pengunjung jika tombol ditekan
    visitorCount++;
    delay(200); // Untuk debouncing
    // Tampilkan jumlah pengunjung di layar LCD
    lcd.clear();
    lcd.setCursor(2, 0);
    lcd.print("Visitors: ");
    lcd.print(visitorCount);
    delay(2000);
  } else {
    digitalWrite(ledPin, LOW);
    lcd.clear();
    lcd.setCursor(2, 0);
    lcd.print(now.day(), DEC);
    lcd.print(" ");
    lcd.print(months[now.month() - 1]);
    lcd.print(" ");
    lcd.print(now.year(), DEC);

    lcd.setCursor(4, 1);
    if (now.hour() < 10) {
      lcd.print("0");
    }
    lcd.print(now.hour(), DEC);
    lcd.print(":");
    if (now.minute() < 10) {
      lcd.print("0");
    }
    lcd.print(now.minute(), DEC);
    lcd.print(":");
    if (now.second() < 10) {
      lcd.print("0");
    }
    lcd.print(now.second(), DEC);
  }
  delay(1000);
}