const int button = 2;
const int redLed = 3;
const int greenLed = 4;
const int segmentA = 5;
const int segmentB = 6;
const int segmentC = 7;
const int segmentD = 8;
const int segmentE = 9;
const int segmentF = 10;
const int segmentG = 11;
int pressed = 0;

void setup() {

  pinMode(button, INPUT_PULLUP);
  pinMode(redLed,OUTPUT);
  pinMode(greenLed, OUTPUT);
  pinMode(segmentA, OUTPUT);
  pinMode(segmentB, OUTPUT);
  pinMode(segmentC, OUTPUT);
  pinMode(segmentD, OUTPUT);
  pinMode(segmentE, OUTPUT);
  pinMode(segmentF, OUTPUT);
  pinMode(segmentG, OUTPUT);

  if (pressed == 0) {
    digitalWrite(segmentA, HIGH);
    digitalWrite(segmentB, HIGH);
    digitalWrite(segmentC, HIGH);
    digitalWrite(segmentD, HIGH);
    digitalWrite(segmentE, HIGH);
    digitalWrite(segmentF, HIGH);
    digitalWrite(segmentG, LOW);
  }

  digitalWrite(redLed, HIGH);
  digitalWrite(greenLed, LOW);

}

void loop() {

  if (digitalRead(button) == LOW) { // Saat tombol ditekan sekali maka angka akan naik 1
    digitalWrite(redLed, LOW); // Lampu merah mati
    digitalWrite(greenLed, HIGH); // Lampu Hijau akan menyala duluan lalu menampilkan angka

    delay(1000);

    pressed = (pressed + 1) % 10;

    if (pressed == 0) {
      digitalWrite(segmentA, HIGH);
      digitalWrite(segmentB, HIGH);
      digitalWrite(segmentC, HIGH);
      digitalWrite(segmentD, HIGH);
      digitalWrite(segmentE, HIGH);
      digitalWrite(segmentF, HIGH);
      digitalWrite(segmentG, LOW);
    }

    else if (pressed == 1) {
      digitalWrite(segmentA, LOW);
      digitalWrite(segmentB, HIGH);
      digitalWrite(segmentC, HIGH);
      digitalWrite(segmentD, LOW);
      digitalWrite(segmentE, LOW);
      digitalWrite(segmentF, LOW);
      digitalWrite(segmentG, LOW);
    }

    else if (pressed == 2) {
      digitalWrite(segmentA, HIGH);
      digitalWrite(segmentB, HIGH);
      digitalWrite(segmentC, LOW);
      digitalWrite(segmentD, HIGH);
      digitalWrite(segmentE, HIGH);
      digitalWrite(segmentF, LOW);
      digitalWrite(segmentG, HIGH);
    }

    else if (pressed == 3) {
      digitalWrite(segmentA, HIGH);
      digitalWrite(segmentB, HIGH);
      digitalWrite(segmentC, HIGH);
      digitalWrite(segmentD, HIGH);
      digitalWrite(segmentE, LOW);
      digitalWrite(segmentF, LOW);
      digitalWrite(segmentG, HIGH);
    }

    else if (pressed == 4) {
      digitalWrite(segmentA, LOW);
      digitalWrite(segmentB, HIGH);
      digitalWrite(segmentC, HIGH);
      digitalWrite(segmentD, LOW);
      digitalWrite(segmentE, LOW);
      digitalWrite(segmentF, HIGH);
      digitalWrite(segmentG, HIGH);
    }

    else if (pressed == 5) {
      digitalWrite(segmentA, HIGH);
      digitalWrite(segmentB, LOW);
      digitalWrite(segmentC, HIGH);
      digitalWrite(segmentD, HIGH);
      digitalWrite(segmentE, LOW);
      digitalWrite(segmentF, HIGH);
      digitalWrite(segmentG, HIGH);
    }

    else if (pressed == 6) {
      digitalWrite(segmentA, HIGH);
      digitalWrite(segmentB, LOW);
      digitalWrite(segmentC, HIGH);
      digitalWrite(segmentD, HIGH);
      digitalWrite(segmentE, HIGH);
      digitalWrite(segmentF, HIGH);
      digitalWrite(segmentG, HIGH);
    }

    else if (pressed == 7) {
      digitalWrite(segmentA, HIGH);
      digitalWrite(segmentB, HIGH);
      digitalWrite(segmentC, HIGH);
      digitalWrite(segmentD, LOW);
      digitalWrite(segmentE, LOW);
      digitalWrite(segmentF, LOW);
      digitalWrite(segmentG, LOW);
    }

    else if (pressed == 8) {
      digitalWrite(segmentA, HIGH);
      digitalWrite(segmentB, HIGH);
      digitalWrite(segmentC, HIGH);
      digitalWrite(segmentD, HIGH);
      digitalWrite(segmentE, HIGH);
      digitalWrite(segmentF, HIGH);
      digitalWrite(segmentG, HIGH);
    }

    else if (pressed == 9) {
      digitalWrite(segmentA, HIGH);
      digitalWrite(segmentB, HIGH);
      digitalWrite(segmentC, HIGH);
      digitalWrite(segmentD, HIGH);
      digitalWrite(segmentE, LOW);
      digitalWrite(segmentF, HIGH);
      digitalWrite(segmentG, HIGH);
    }

    while (digitalRead(button) == LOW) { // Kalau ditekan panjang maka angka akan tampil terus menerus secara berurutan dan jeda 1 detik
      delay(1000);

      if (digitalRead(button) == HIGH) {
        
        break;
      
      }

      pressed = (pressed + 1) % 10;

      if (pressed == 0) {
        digitalWrite(segmentA, HIGH);
        digitalWrite(segmentB, HIGH);
        digitalWrite(segmentC, HIGH);
        digitalWrite(segmentD, HIGH);
        digitalWrite(segmentE, HIGH);
        digitalWrite(segmentF, HIGH);
        digitalWrite(segmentG, LOW);
      }

      else if (pressed == 1) {
        digitalWrite(segmentA, LOW);
        digitalWrite(segmentB, HIGH);
        digitalWrite(segmentC, HIGH);
        digitalWrite(segmentD, LOW);
        digitalWrite(segmentE, LOW);
        digitalWrite(segmentF, LOW);
        digitalWrite(segmentG, LOW);
      }

      else if (pressed == 2) {
        digitalWrite(segmentA, HIGH);
        digitalWrite(segmentB, HIGH);
        digitalWrite(segmentC, LOW);
        digitalWrite(segmentD, HIGH);
        digitalWrite(segmentE, HIGH);
        digitalWrite(segmentF, LOW);
        digitalWrite(segmentG, HIGH);
      }

      else if (pressed == 3) {
        digitalWrite(segmentA, HIGH);
        digitalWrite(segmentB, HIGH);
        digitalWrite(segmentC, HIGH);
        digitalWrite(segmentD, HIGH);
        digitalWrite(segmentE, LOW);
        digitalWrite(segmentF, LOW);
        digitalWrite(segmentG, HIGH);
      }

      else if (pressed == 4) {
        digitalWrite(segmentA, LOW);
        digitalWrite(segmentB, HIGH);
        digitalWrite(segmentC, HIGH);
        digitalWrite(segmentD, LOW);
        digitalWrite(segmentE, LOW);
        digitalWrite(segmentF, HIGH);
        digitalWrite(segmentG, HIGH);
      }

      else if (pressed == 5) {
        digitalWrite(segmentA, HIGH);
        digitalWrite(segmentB, LOW);
        digitalWrite(segmentC, HIGH);
        digitalWrite(segmentD, HIGH);
        digitalWrite(segmentE, LOW);
        digitalWrite(segmentF, HIGH);
        digitalWrite(segmentG, HIGH);
      }

      else if (pressed == 6) {
        digitalWrite(segmentA, HIGH);
        digitalWrite(segmentB, LOW);
        digitalWrite(segmentC, HIGH);
        digitalWrite(segmentD, HIGH);
        digitalWrite(segmentE, HIGH);
        digitalWrite(segmentF, HIGH);
        digitalWrite(segmentG, HIGH);
      }

      else if (pressed == 7) {
        digitalWrite(segmentA, HIGH);
        digitalWrite(segmentB, HIGH);
        digitalWrite(segmentC, HIGH);
        digitalWrite(segmentD, LOW);
        digitalWrite(segmentE, LOW);
        digitalWrite(segmentF, LOW);
        digitalWrite(segmentG, LOW);
      }

      else if (pressed == 8) {
        digitalWrite(segmentA, HIGH);
        digitalWrite(segmentB, HIGH);
        digitalWrite(segmentC, HIGH);
        digitalWrite(segmentD, HIGH);
        digitalWrite(segmentE, HIGH);
        digitalWrite(segmentF, HIGH);
        digitalWrite(segmentG, HIGH);
      }

      else if (pressed == 9) {
        digitalWrite(segmentA, HIGH);
        digitalWrite(segmentB, HIGH);
        digitalWrite(segmentC, HIGH);
        digitalWrite(segmentD, HIGH);
        digitalWrite(segmentE, LOW);
        digitalWrite(segmentF, HIGH);
        digitalWrite(segmentG, HIGH);
      }

    } // Akhir dari loopingan While (tekan tombol lama)

    digitalWrite(greenLed, LOW);
    digitalWrite(redLed, HIGH);

  } // Akhir dari if paling atas (tekan tombol sekali)
}