#define LED 13
#define BUTTON 12

unsigned long pressStartTime = 0;
unsigned long ledOnTime = 0;
int state = 0;

void setup() {
  Serial.begin(9600);
  pinMode(LED, OUTPUT);
  pinMode(BUTTON, INPUT_PULLUP);
}

void loop() {
  int buttonState = digitalRead(BUTTON);

  if (buttonState == LOW) {
    if (pressStartTime == 0) {
      pressStartTime = millis();
    }
  } else {
    if (pressStartTime != 0 && millis() - pressStartTime < 500) {
      Serial.print(".");
      state = 1;
      ledOnTime = millis() + 1000;
    } else if (pressStartTime != 0 && millis() - pressStartTime >= 500) {
      Serial.print("-");
      state = 2;
      ledOnTime = millis() + 5000;
    }
    pressStartTime = 0;
  }

  switch (state) {
    case 0:
      digitalWrite(LED, LOW);
      break;
    case 1:
      digitalWrite(LED, HIGH);
      while (millis() < ledOnTime) {
      }
      digitalWrite(LED, LOW);
      state = 0;
      break;
    case 2:
      digitalWrite(LED, HIGH);
      while (millis() < ledOnTime) {
      }
      digitalWrite(LED, LOW);
      state = 0;
      break;
  }
}