// 22.11.4562 - Muhammad Guido Augusta
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

const int ledHijau = 2;
const int ledBiru = 3;
const int buttonHijau = 12;
const int buttonBiru = 11;

int buttonState = HIGH;  // Status awal tombol (high karena menggunakan pull-up resistor)
int lastButtonState = HIGH;  // Status tombol sebelumnya
int messageState = 0;  // Status pesan

void setup() {
  // put your setup code here, to run once:
  pinMode(ledHijau, OUTPUT);
  pinMode(ledBiru, OUTPUT);
  pinMode(buttonHijau, INPUT);
  pinMode(buttonBiru, INPUT_PULLUP);

  lcd.init();
  lcd.backlight();
  lcd.begin(16, 2);
}

void loop() {
  // put your main code here, to run repeatedly:
  if (digitalRead(buttonHijau) == 1) {
    digitalWrite(ledHijau, HIGH);
  } else {
    digitalWrite(ledHijau, LOW);
  }

  int reading = digitalRead(buttonBiru);  // Membaca status tombol
  if (reading != lastButtonState) {
    delay(50);  // Debouncing
  }

  if (reading != buttonState) {
    buttonState = reading;
    if (buttonState == LOW) {
      // Tombol ditekan
      if (messageState == 0) {
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("Hello World");
        messageState = 1;
      } else if (messageState == 1) {
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("Status Wi-Fi: ");
        messageState = 2;
      } else if (messageState == 2) {
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("Status Koneksi Blynk: ");
        messageState = 0;
      }
    }
  }

  lastButtonState = reading;  // Memperbarui status tombol sebelumnya
}