CountDown + TFT

#include <SPI.h>
#include <Adafruit_GFX.h>
#include <TFT_ILI9163C.h>
#include<CountUpDownTimer.h>
#define buttonResetPin 2 // interrupt reset all data when reset pressed

#define buton_menu_select 3
#define buttonUp 4
#define buttonDown 5

// #LED_INDICATOR 7 // Led indicator boiler ON/OFF maybe 220V conected to the contactor
#define relay 6

#define __CS  10
#define __DC  9
#define __RST 8

#define BLACK   0x0000
#define BLUE    0x001F
#define RED     0xF800
#define GREEN   0x07E0
#define CYAN    0x07FF
#define MAGENTA 0xF81F
#define YELLOW  0xFFE0
#define WHITE   0xFFFF

TFT_ILI9163C tft = TFT_ILI9163C(__CS, __DC, __RST);

CountUpDownTimer T(DOWN);

int Hours=0;
int Min=0;
const unsigned int add_min = 5; // add 5 min

boolean buttonPress = false ,bt_state = false ,longPress = false ;
long timerStart;
const long delay_long_press = 500;
const long delay_short_press = 270;
long lastDebounceTime = 0;

unsigned int select_time_place = 1; // select hours or minutes to adjust

// interrupt function run only when the reset is activate
void reset()
{
 buttonPress = false;
 longPress = false;
 Hours = 0;
 Min = 0;
 bt_state = LOW;
}

void setup()
{
 pinMode(buttonResetPin, INPUT_PULLUP);
 pinMode(buton_menu_select, INPUT_PULLUP);
 pinMode(buttonUp, INPUT_PULLUP);
 pinMode(buttonDown, INPUT_PULLUP);
 pinMode(relay, OUTPUT);
 // pinMode(LED_INDICATOR, OUTPUT);
 digitalWrite(relay,LOW);
 tft.begin();
 tft.clearScreen();
 tft.setRotation(3);
 tft.setTextSize(2);
 tft.setTextColor(GREEN);
 tft.setCursor(32,10);
 tft.print("Boiler");
 tft.setCursor(35,28);
 tft.print("Timer");
 T.SetTimer(0,0,0); //start at X minute (USE FOR: DOWN ONLY)

 attachInterrupt(0, reset, FALLING ); // FALLING  trigger buton_menu_select when high to low
}

void loop()
{
 T.Timer(); // run the timer
 check_button();
 tft_display(Hours,Min);
 run_timer();
}

void check_button()
{
 if(digitalRead(buton_menu_select) == LOW)
 {
  if (buttonPress == false)
  {
    buttonPress = true ;
    timerStart = millis();
  }
  if((millis() - timerStart > delay_long_press) && (longPress == false)) // check for long press
  {
    longPress = true ;
    bt_state = !bt_state;
  }
 }
 else
 {
  if (buttonPress == true)
  {
   if (longPress == true)
   {
    longPress = false ;
   }


   else if(bt_state == true && buttonPress == true)
   {
    select_time_place++;
    if(select_time_place > 2)
    {
     select_time_place = 1 ;
    }
   }
   buttonPress = false ;
  }
 }
 if(bt_state == true)
 {
   adjust_timer(select_time_place);
 }
}

void adjust_timer(int menu_place)
{
 switch(menu_place)
 {
  case 1:
   if ((millis() - lastDebounceTime) > delay_short_press) // debounce for one press
   {
   if (digitalRead(buttonUp) == LOW)
   {
    Hours++;
    if (Hours >= 4) {Hours=0;} // limit to 3 hours configuration
   }
   if (digitalRead(buttonDown) == LOW)
   {
    // Hours--;
    // if (Hours == 0) {Hours=3;} // block under 0
    // if (4 <= Hours && Hours == 0) {Hours=3;}
    if (Hours > 0) {Hours--; /*Hours=0;*/} // block under 0
   }
   lastDebounceTime = millis();
  }
   break;

  case 2:
   if ((millis() - lastDebounceTime) > delay_short_press) // debounce for one press
   {
   if (digitalRead(buttonUp) == LOW)
   {
    Min = Min + add_min;
    if (Min >= 60) {Min=0;}
   }
   if (digitalRead(buttonDown) == LOW)
   {
    Min = Min - add_min;
    if (Min <= 0) {Min=59;}
   }
   lastDebounceTime = millis();
  }
  break;
 }
}

void tft_display(int _Hours, int _Min)
{
 if(bt_state == true && select_time_place == 1)
 {
  tft.setTextSize(2);
  tft.setTextColor(WHITE,BLACK);
  tft.setCursor(23,60);
  tft.print(Hours);
  tft.print(":");
  tft.print(Min);
 }
 if(bt_state == true && select_time_place == 2)
 {
  tft.setTextSize(2);
  tft.setTextColor(WHITE,BLACK);
  tft.setCursor(23,60);
  tft.print(Hours);
  tft.print(":");
  tft.print(Min);
 }
}

void run_timer()
{
 if((0 < Hours && Hours >= 3) && (0 < Min && Min >= 59))
 {
  T.SetTimer(Hours,Min,0);
  T.StartTimer();
 }
 if (T.TimeHasChanged()) // this prevents the time from being constantly shown.
 {
  tft.setTextSize(2);
  tft.setTextColor(RED);
  tft.setCursor(23,60); //
  tft.fillRect(19,58,85,20,BLACK);
  tft.print(T.ShowHours());
  tft.print(":");
  tft.print(T.ShowMinutes());
  tft.print(":");
  tft.print(T.ShowSeconds());
 }
 if(T.ShowHours() > 0 || T.ShowMinutes() > 0 || T.ShowSeconds() > 0)
 {
  tft.setTextSize(2);
  tft.setTextColor(WHITE,BLACK);
  tft.setCursor(13,85);
  tft.print("relay on ");
  // digitalWrite(LED_INDICATOR,HIGH);
 }
 else
 {
  // tft.fillRect(13,85,106,16,BLACK);
  tft.setTextSize(2);
  tft.setTextColor(WHITE,BLACK);
  tft.setCursor(13,85);
  tft.print("relay off");
  // digitalWrite(LED_INDICATOR,LOW);
 }
}