unsigned long startTime = 0;
int buttonPressCount = 0;
int format = 0;
int Bootter = 0;
const byte segmentCodes[] = {
  0b11000000,  // 0
  0b11111001,  // 1
  0b10100100,  // 2
  0b10110000,  // 3
  0b10011001,  // 4
  0b10010010,  // 5
  0b10000010,  // 6
  0b11111000,  // 7
  0b10000000,  // 8
  0b10010000   // 9
};

void setup() {
  DDRB = 0b111111;
  DDRC = 0b011100;
  DDRD |= 0b11111111;
}

void displayDigit(int digit) {
  PORTD = segmentCodes[digit];
}

void displayTime(unsigned long time) {
  int thousands = time / 10000;
  int hundreds = (time / 1000) % 10;
  int tens = (time / 100) % 10;
  int ones = time % 10;

  displayDigit(thousands);
  PORTB |= 0b000001;
  delay(5);
  PORTB ^= 0b000001;

  displayDigit(hundreds);
  PORTB |= 0b000010;
  PORTD = 0b01111111;
  delay(5);
  PORTB ^= 0b000010;

  displayDigit(tens);
  PORTB |= 0b000100;
  delay(5);
  PORTB ^= 0b000100;

  displayDigit(ones);
  PORTB |= 0b001000;
  delay(5);
  PORTB ^= 0b001000;
}
void displayTime1(unsigned long time) {
  int thousands = time / 10000;
  int hundreds = (time / 1000) % 10;
  int tens = (time / 100) % 10;
  int ones = time % 10;

  displayDigit(thousands);
  PORTB |= 0b010000;
  delay(5);
  PORTB ^= 0b010000;

  displayDigit(hundreds);
  PORTB |= 0b100000;
  PORTD = 0b01111111;
  delay(5);
  PORTB ^= 0b100000;

  displayDigit(tens);
  PORTC |= 0b001000;
  delay(5);
  PORTC ^= 0b001000;

  displayDigit(ones);
  PORTC |= 0b010000;
  delay(5);
  PORTC ^= 0b010000;
}

void FX1() {
  //FX();
  if (startTime == 0) {
    startTime = millis();  // เริ่มต้นนับเวลา
  }                        //
  unsigned long currentTime = millis();
  unsigned long elapsedTime = currentTime - startTime;
  displayTime(elapsedTime);
  if (digitalRead(PINC & 0b111101)) {
    if ((PINC & 0b111101) == 0) {
      buttonPressCount++;  // เพิ่มจำนวนการกดปุ่มเมื่อปุ่ม 0 ถูกกด
      delay(200);
      while (true) {
        displayTime(elapsedTime);
        format = elapsedTime;
        // if ((PINC & 0b111101) == 0) {
        return;
        // }
      }
    }
  }
}

void FX() {
  if (startTime == 0) {
    startTime = millis();  // เริ่มต้นนับเวลา
  }

  unsigned long currentTime = millis();
  unsigned long elapsedTime = currentTime - startTime;
  displayTime1(elapsedTime);
  if (digitalRead(PINC & 0b111101)) {
    if ((PINC & 0b111101) == 0) {
      buttonPressCount++;  // เพิ่มจำนวนการกดปุ่มเมื่อปุ่ม 0 ถูกกด
      Bootter++;
      delay(200);
      while (true) {
        displayTime1(elapsedTime);
        displayTime(format);
        //startTime = elapsedTime ;
        //FX();
        if ((PINC & 0b111110) == 0) {
          return;
        }
      }
    }
  }
}
void loop() {
  int vol = digitalRead(PINC & 0b1111110);
  if (vol == HIGH) {
    for (int i = 3; i >= 0; i--) {
      displayTime1(i);
      displayTime(i);
      delay(1000);  // รอเวลา 1 วินาที
    }
    buttonPressCount = 0;
    while (true) {
      FX1();
      if (buttonPressCount >= 1) {
        while (true) {
          FX();
          displayTime(format);
          //startTime = 0;
          if (Bootter >= 1) {
            startTime = 0;
            Bootter = 0;
            return;
          }
        }
      }
    }
  } else {
    PIND ^= 0b00000001;
  }
  delay(200);
}