#include <Keypad.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <DHT.h>

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

char hexaKeys[ROWS][COLS] = {
  {'1', '2', '3', 'A'},
  {'4', '5', '6', 'B'},
  {'7', '8', '9', 'C'},
  {'*', '0', '#', 'D'}
};

byte rowPins[ROWS] = {9, 8, 7, 6}; 
byte colPins[COLS] = {5, 4, 3, 2}; 

#define DHTPIN 13  
#define DHTTYPE DHT22 
Keypad customKeypad = Keypad(makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);
LiquidCrystal_I2C lcd(0x27, 16, 2);
DHT dht(DHTPIN, DHTTYPE);
int steps = 200;
byte directionPin = 11;
byte stepPin = 12;
int joy = A0;
String password = "3462";
String chpass = "";
bool passed = false;
bool Made = false;
int IDT = 23;
String M = "S";
String IDTM = "MAN";
int MS = 10;
char currentMode;

void setup(){
  lcd.init();
  lcd.backlight();
  dht.begin();
  pinMode(directionPin, OUTPUT);
  pinMode(stepPin, OUTPUT);
  for(int i = 0; i <= 2; i++){
    lcd.setCursor(5, 0);
    lcd.print("Loading");
    delay(300);
    lcd.setCursor(5, 0);
    lcd.print("Loading.");
    delay(300);
    lcd.setCursor(5, 0);
    lcd.print("Loading..");
    delay(300);
    lcd.setCursor(5, 0);
    lcd.print("Loading...");
    delay(300);
    lcd.setCursor(12, 0);
    lcd.print("   ");
  }
  lcd.clear();
}

void loop() {
  char keypad = customKeypad.getKey();
  int temp = dht.readTemperature();
  int joyvalue = analogRead(joy);
  if(!passed){
    lcd.setCursor(0, 0);
    lcd.print("Password: ");
    if(keypad){
      chpass += keypad;
      lcd.setCursor(10, 0);
      lcd.print(chpass);
      if(chpass.length() == 4){
        if(password == chpass){
          lcd.clear();
          lcd.setCursor(5, 0);
          lcd.print("Correct");
          delay(500);
          passed = true;
          lcd.clear();
          Made = true;
        }
        else{
          lcd.clear();
          lcd.setCursor(5, 0);
          lcd.print("Wrong");
          delay(500);
          passed = false;
          lcd.clear();
          chpass = "";
        }
      }
    }
  }
  if(passed && Made){
    lcd.setCursor(2,0);
    lcd.print("Made By Zeyd");
    delay(2500);
    Made = false;
    lcd.clear();
  }

  if(passed && !Made){
      lcd.setCursor(0,0);
      lcd.print("T");
      lcd.setCursor(2,0);
      lcd.print("IDT");
      lcd.setCursor(7,0);
      lcd.print("M");
      lcd.setCursor(9,0);
      lcd.print("IDTM");
      lcd.setCursor(13,0);
      lcd.print("MS");
      lcd.setCursor(0,1);
      lcd.print(temp);
      lcd.setCursor(2,1);
      lcd.print(IDT);
      lcd.setCursor(7,1);
      lcd.print(M);
      lcd.setCursor(9,1);
      lcd.print(IDTM);
      lcd.setCursor(13,1);
      lcd.print(MS);
      if(keypad){
        lcd.clear();
        currentMode = keypad;
      }     
        switch(currentMode){
          case 'A':
          lcd.clear();
            lcd.setCursor(0,0);
            lcd.print("T");
            lcd.setCursor(2,0);
            lcd.print("IDT");
            lcd.setCursor(7,0);
            lcd.print("M");
            lcd.setCursor(9,0);
            lcd.print("IDTM");
            lcd.setCursor(13,0);
            lcd.print("MS");
            lcd.setCursor(0,1);
            lcd.print(temp);
            lcd.setCursor(2,1);
            lcd.print(IDT);
            lcd.setCursor(7,1);
            lcd.print(M);
            lcd.setCursor(9,1);
            lcd.print(IDTM);
            lcd.setCursor(13,1);
            lcd.print(MS);
            break;
          case 'B':
            lcd.clear();
            lcd.setCursor(6, 0);
            lcd.print("TEMP");
            lcd.setCursor(14, 0);
            lcd.print("IDT");
            lcd.setCursor(6, 1);
            lcd.print(temp);
            lcd.setCursor(14, 1);
            lcd.print(IDT);
            chane(IDT);
            break;
        }
          
      }

  if(passed){
    digitalWrite(directionPin, LOW);
    for(int i = 0; i < 200; i++){
      digitalWrite(stepPin, HIGH);
      delayMicroseconds(20);
      digitalWrite(stepPin, LOW);
      delay(10);
  }
  }
}
void chane(int a){
  int joyvalue = analogRead(joy);
  if(joyvalue == 1023){
    a++;
  }
  else if(joyvalue == 0){
    a--;
  }
}