#include <LiquidCrystal_I2C.h>  // LiquidCrystal I2C - Version: 1.1.1
#include <Wire.h>
LiquidCrystal_I2C lcd(0x27, 20, 4);  // LCD HEX address 0x27

#define Menu_inc 6
#define Menu_dec 7
#define Menu 8

int Menu_Up = 0;
int Menu_Dn = 0;
int Menu_Sel = 0;

unsigned long a = 0;  //
unsigned long b = 3000; // time for long press on menu button


unsigned long Sec = 0;
unsigned long Mins = 0;
unsigned long Hours = 0;

int activetime = 0;
int starttime = 0;
int prevoustime = 0;
int c = 0;
int d = 0;

unsigned long startTime = 0;
unsigned long elapsedTime = 0;
boolean buttonState = LOW;
boolean lastButtonState = LOW;


void setup() {
  Serial.begin(9600);
  pinMode(Menu_inc, INPUT_PULLUP);
  pinMode(Menu_dec, INPUT_PULLUP);
  pinMode(Menu, INPUT_PULLUP);
  a = millis();

  lcd.init();                // initialize the lcd
  lcd.backlight();           // turns on the backlight
  lcd.setCursor(0, 0);       // set cursor to first row
  lcd.print("Anne and Johns");  // print out to LCD
  lcd.setCursor(0, 1);       // set cursor to first row
  lcd.print("Heating ");       // print out to LCD
  delay(3000);
  lcd.clear();
}


void loop() {

  Menu_Up = digitalRead(Menu_inc);
  Menu_Dn = digitalRead(Menu_dec);
  Menu_Sel = digitalRead(Menu);
  buttonState = digitalRead(Menu);

 // if (Menu_Up == LOW) lcd.init(), lcd.backlight(), lcd.setCursor(0, 2), lcd.print("Menu+ Pressed");

 // if (Menu_Dn == LOW) lcd.init(), lcd.backlight(), lcd.setCursor(0, 2), lcd.print("Menu- Pressed");

  //+++++++++++++++++++++Setting the timer for the menu++++++++++++++++++++++++++++++++++++++++++
 
  if (buttonState != lastButtonState and d == 0) {if (buttonState == LOW) startTime = millis();}
  if (buttonState == HIGH and d == 0) elapsedTime = 0;
  if (buttonState == LOW and d == 0) elapsedTime = millis() - startTime;
  lastButtonState = buttonState;

//==============================================================================================

if (elapsedTime > b and d == 0) d = 1, lcd.clear();

if (d == 0){
  activetime = (millis() / 1000) - starttime;
  if (prevoustime < activetime) Sec++, prevoustime = activetime;
  if (Sec > 59) Mins++, Sec = 0;
  if (Mins > 59) Hours++, Mins = 0;
  if (Hours > 23) Hours = 0;
  if (Menu_Up == LOW) Hours++, delay(250);
  
  if (Hours < 10) lcd.setCursor(0,0), lcd.print("0"), lcd.setCursor(1, 0);
  if (Hours >= 10) lcd.setCursor(0,0);
  lcd.print(Hours);
  lcd.setCursor(2,0);
  lcd.print(":");

  if (Mins < 10) lcd.setCursor(3,0), lcd.print("0"), lcd.setCursor(4,0), lcd.print(Mins);

  if (Mins >= 10) lcd.setCursor(3,0), lcd.print(Mins);
  lcd.setCursor(5,0);

 // lcd.print(":");

 // if (Sec < 10)lcd.setCursor(6,0), lcd.print("0"), lcd.setCursor(7,0), lcd.print(Sec);
  
 // if (Sec >= 10) lcd.setCursor(6,0), lcd.print(Sec);
}
  if (Menu_Dn == LOW and d == 1) d = 0, lcd.clear();
//set the clock so that the time shifts to most relavent number leading zero (01) (10)
//below 10


Serial.print(d);
Serial.print("  Elapsed Timer =");
Serial.println(elapsedTime);

if (d == 1){
 lcd.setCursor(1,0), lcd.print("Set Time");
 lcd.setCursor(1, 1), lcd.print("Set On/Off");
 
  if (Menu_Sel == LOW and d == 1 and c == 0) lcd.setCursor (0, 0), lcd.print("#"), c == 1, delay(100);
  if (Menu_Sel == LOW and d == 1 and c == 1) lcd.setCursor (0, 1), lcd.print("#"), c == 0, delay(100);
}

}