#define LED_PIN D0
#define BUTTON_PIN D8

bool blinking = false;
bool lastButtonState = LOW;   // Default state is LOW with pull-down
bool ledState = LOW;

unsigned long previousMillis = 0;
const long interval = 500;

void setup() {
  pinMode(LED_PIN, OUTPUT);
  pinMode(BUTTON_PIN, INPUT_PULLDOWN);  // Internal pull-down enabled

  Serial.begin(9600);
}

void loop() {

  bool currentButtonState = digitalRead(BUTTON_PIN);

  // Detect rising edge (LOW → HIGH)
  if (lastButtonState == LOW && currentButtonState == HIGH) {

    blinking = !blinking;   // Toggle blinking mode

    if (blinking) {
      Serial.println("ITS ON BABE");
    } else {
      Serial.println("ITS OFF BABE");
      digitalWrite(LED_PIN, LOW);
      ledState = LOW;
    }

    delay(50); // debounce
  }

  lastButtonState = currentButtonState;

  if (blinking) {
    unsigned long currentMillis = millis();

    if (currentMillis - previousMillis >= interval) {
      previousMillis = currentMillis;

      ledState = !ledState;
      digitalWrite(LED_PIN, ledState);
    }
  }
}