const int pins[] = {23, 22, 19, 18, 5, 21, 4};  // 7-segment display pins (A, B, C, D, E, F, G)
const int data[10][7] = {
  {0, 0, 0, 0, 0, 0, 1}, // 0
  {1, 0, 0, 1, 1, 1, 1}, // 1
  {0, 0, 1, 0, 0, 1, 0}, // 2
  {0, 0, 0, 0, 1, 1, 0}, // 3
  {1, 0, 0, 1, 1, 0, 0}, // 4
  {0, 1, 0, 0, 1, 0, 0}, // 5
  {0, 1, 0, 0, 0, 0, 0}, // 6
  {0, 0, 0, 1, 1, 1, 1}, // 7
  {0, 0, 0, 0, 0, 0, 0}, // 8
  {0, 0, 0, 0, 1, 0, 0}  // 9
};

const int switchPin = 14;  // Button pin
int currentValue = 0;
int direction = 1;         // 1 for up, -1 for down
int switchState;
int lastSwitchState = HIGH;

void setup() {
  Serial.begin(115200);

  for (int x = 0; x < 7; x++) {
    pinMode(pins[x], OUTPUT);
  }
  pinMode(switchPin, INPUT_PULLUP);
}

void loop() {
  switchState = digitalRead(switchPin);

  if (switchState == LOW && lastSwitchState == HIGH) { // Detect button press
    currentValue += direction;

    // Change direction at boundaries (0 and 9)
    if (currentValue == 9) {
      direction = -1;
    } else if (currentValue == 0) {
      direction = 1;
    }

    Serial.println(currentValue);
    delay(150);  // Debounce delay
  }

  // Update the 7-segment display
  for (int x = 0; x < 7; x++) {
    digitalWrite(pins[x], data[currentValue][x]);
  }

  lastSwitchState = switchState;
}