#include <LiquidCrystal.h>
#include <Keypad.h>

/* Display */
LiquidCrystal lcd(12, 11, 10, 9, 8, 7);

/* Keypad setup */
const byte KEYPAD_ROWS = 4;
const byte KEYPAD_COLS = 4;
byte rowPins[KEYPAD_ROWS] = {5, 4, 3, 2};
byte colPins[KEYPAD_COLS] = {A3, A2, A1, A0};
char keys[KEYPAD_ROWS][KEYPAD_COLS] = {
  {'1', '2', '3', 'a'},
  {'4', '5', '6', 'b'},
  {'7', '8', '9', 'c'},
  {'*', '0', '#', 'd'}
};

Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, KEYPAD_ROWS, KEYPAD_COLS);

void setup() {
  Serial.begin(9600);
  lcd.begin(16, 2);

  /* led pin 6 */
  pinMode(6, OUTPUT);

  pesanAwal();

}

bool statusKunci = false;
bool statusEnroll = false;
//char key = "";

void loop() {
  lcd.setCursor(0, 0);
  updateCursor();
  //char key = 'a';
  char key = keypad.getKey();
  if (key) {
    
    if(statusKunci == false){
      tampilMengunciSepeda();
      lcd.setCursor(10, 1);
      updateCursor();
      //delay (2000);
      //lcd.clear();
      //char key = keypad.getKey();
      char key2 = key;
      lcd.print(key2);
      switch (key2) {
        case 'a':
        statusKunci = true;
        digitalWrite(6, HIGH); 
        tampilKunciBerhasil();
        return;
      default:
        statusKunci = false;
        tampilKunciGagal();
      return;
      }
      delay (2000);
      lcd.clear();
    } 
    /*
    if(statusKunci == false) {
      lcd.print("kunci ?");
      lcd.setCursor(10, 1);
      //char key2 = keypad.getKey();
      lcd.print(key);
    } */
    
   
  }

}

void pesanAwal() {
  // bagian ini untuk menampilkan tulisan awal

  lcd.print("Sistem pengunci");
  lcd.setCursor(0, 1);
  lcd.print("Sepeda di ruang");
  delay(500);
  lcd.clear();
  lcd.setCursor(5, 0);
  lcd.print("publik ");
  lcd.setCursor(3, 1);
  lcd.print("- arduino");
  delay(500);
  
  lcd.clear();
}

void updateCursor() {
  if (millis() / 250 % 2 == 0 ) {
    lcd.cursor();
  } else {
    lcd.noCursor();
  }
}

void processInput(char key) {

}

void tampilMengunciSepeda() {
  lcd.setCursor(0, 0);
  lcd.print("Saat ini terbuka");
  delay(500);
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Ingin mengunci ?");
  delay(50);
  lcd.setCursor(0, 1);
  lcd.print("(A = Ya)");
  delay (2000);
}

void tampilKunciBerhasil() {
  lcd.setCursor(0, 0);
  lcd.print("Berhasil Kunci");
  delay(600);
  lcd.clear();
}

void tampilKunciGagal() {
  lcd.setCursor(0, 0);
  lcd.print("Gagal Kunci");
  delay(600);
  lcd.clear();
}