#include <Keypad.h>
#include <LiquidCrystal_I2C.h>
#include <Servo.h>

Servo myServo;
LiquidCrystal_I2C lcd(0x27, 16, 2);

const byte ROWS = 4; 
const byte COLS = 3; 

char Keys[4][3] = {
  {'1', '2', '3'},
  {'4', '5', '6'},
  {'7', '8', '9'},
  {'*', '0', '#'}
};

byte rowPin[4] = {2, 3, 4, 5};
byte colsPin[3] = {6, 7, 8}; 

Keypad customKeypad = Keypad(makeKeymap(Keys), rowPin, colsPin, 4, 3);

int password = 1234;       // Password yang benar
int inputPassword = 0;     // Variabel untuk menyimpan input pengguna
int JumlahPercobaan = 0;    // Menghitung jumlah percobaan
bool isEntering = false;
const int maxAttempts = 3; // Jumlah percobaan maksimum
const int buzzerPin = 9;   // Pin untuk buzzer
const int servoPin = 10;   // Pin untuk servo

void setup() {
  myServo.attach(10);       // Menghubungkan servo
  pinMode(9, OUTPUT);
  lcd.init();               // Inisialisasi LCD
  lcd.backlight();          // Hidupkan lampu latar LCD
  lcd.print("  Masukkan PIN:");
  lcd.setCursor(0,1);
  lcd.print("    4 ANGKA");
  myServo.write(0);
}
void playSuccessMelody() {
  int melody[] = {493, 329, 493, 523, 440, 493}; 
  int noteDurations[] = {200, 200, 200, 500, 200, 1000}; // Durasi nada (ms)

  for (int thisNote = 0; thisNote < sizeof(melody) / sizeof(melody[0]); thisNote++) {
    tone(9, melody[thisNote], noteDurations[thisNote]);
    delay(noteDurations[thisNote]); // Tunggu durasi nada
    noTone(9);                      // Matikan nada
    delay(50);                      // Tunggu sedikit sebelum nada berikutnya
  }
}

void playErrorMelody() {
  tone(9, 622);
  delay(300);
  tone(9, 587);
  delay(300);
  tone(9, 554);
  delay(300);
  tone(9, 523);
  delay(1000);
  noTone(9);
}

void lockoutMelody() {
  for (byte i = 0; i < 10; i++){
      tone(9, 660);
      delay(400);
      noTone(9);
      delay(30);

      tone(9, 860);
      delay(400);
      noTone(9);
      delay(30);
      i++;

      if (i == 2){
      noTone(9);
      }
    }
  }

void loop() {
  char key = customKeypad.getKey(); // Gunakan customKeypad
  if (key) {
    if (!isEntering) {
      isEntering = true;
      lcd.setCursor(0, 1);
      lcd.print("                ");  // Menghapus baris kedua
    } if (key >= '0' && key <= '9') {
      inputPassword = inputPassword * 10 + (key - '0'); // Membaca input
      lcd.setCursor(0, 1);
      lcd.print(inputPassword);  // Tampilkan PIN yang dimasukkan
    } else if (key == '*') {  // Hapus semua input jika `*` ditekan
      lcd.clear();
      delay(50);
      lcd.print("MENGULANG INPUT");
      delay(1000);
      lcd.clear();
      delay(50);
      inputPassword = 0;
      isEntering = false;
      lcd.print("  Masukkan PIN:");
      lcd.setCursor(0,1);
      lcd.print("    4 ANGKA");
    } else if (key == '#') {     // Jika tombol '#' ditekan
      if (inputPassword == password) {
        lcd.clear();
        lcd.print("Akses diterima!");
        myServo.write(90); // Buka kunci
        playSuccessMelody();// Mainkan nada setelah berhasil
        delay(100);       // Tunggu 2 detik
        lcd.clear();
        delay(100);
        lcd.print("  Pintu Dibuka");
        delay(5000);
        lcd.clear();
        delay(500);
        lcd.print("  Pintu Kembali");
        lcd.setCursor(0,1);
        lcd.print("    Ditutup     ");
        myServo.write(0);  // Kunci kembali
        inputPassword = 0; // Reset input
        JumlahPercobaan = 0;  // Reset hitungan percobaan
        delay(2000);
        lcd.clear();
        lcd.print("  Masukkan PIN:");
        lcd.setCursor(0,1);
        lcd.print("    4 ANGKA");
        isEntering = false;
      } else {
        JumlahPercobaan++;
        lcd.clear();
        lcd.print("Password salah!");
        playErrorMelody(); // Mainkan nada saat password salah
        delay(1000); // Tampilkan pesan selama 1 detik
        lcd.clear();
        lcd.print("  Masukkan PIN:");
        lcd.setCursor(0,1);
        lcd.print("    4 ANGKA");
        isEntering = false;
        inputPassword = 0; // Reset input
        if (JumlahPercobaan >= maxAttempts) {
          lcd.clear();
          lcd.print("Terlalu Banyak");
          lcd.setCursor(0, 1);
          lcd.print("  Percobaan!");
          lockoutMelody();
          lockoutMelody();
          delay(2);
          lcd.clear();
          lockoutMelody();
          delay(2);
          lcd.print("   MEMANGGIL");
          lcd.setCursor(0,1);
          lcd.print("   SECURITY");
          lockoutMelody();
          lockoutMelody();
          lcd.clear();
          lcd.print("  Masukkan PIN:");
          lcd.setCursor(0,1);
          lcd.print("    4 ANGKA");
          isEntering = false;
           JumlahPercobaan
         = 0;   // Reset hitungan percobaan
        }
      }
    }
  }
}