// constants won't change. They're used here to set pin numbers:
const int buttonPin = 2;    // the number of the pushbutton pin
const int ledPin1 = 12;     // the number of the first LED pin
const int ledPin2 = 13;     // the number of the second LED pin

// variables will change:
bool ledFlag1 = false;      // flag for LED1
bool ledFlag2 = false;      // flag for LED2

void setup() {
  // initialize the LED pins as outputs:
  pinMode(ledPin1, OUTPUT);
  pinMode(ledPin2, OUTPUT);

  // Set up interrupt for the button
  attachInterrupt(digitalPinToInterrupt(buttonPin), buttonInterrupt, RISING);

  Serial.begin(9600);
}

void loop() {
  Serial.print("Flag LED1: ");
  Serial.println(ledFlag1);

  Serial.print("Flag LED2: ");
  Serial.println(ledFlag2);

  // Blink LED1 continuously
  ledFlag1 = !ledFlag1;
  digitalWrite(ledPin1, ledFlag1 ? HIGH : LOW);
  
  // Blink LED2 only when both flags are true (button pressed)
  if (ledFlag1 && ledFlag2) {
    digitalWrite(ledPin2, HIGH);
  } else {
    digitalWrite(ledPin2, LOW);
  }

  delay(1000); // Adjust the blink rate as needed
}

void buttonInterrupt() {
  // Toggle the flag for LED1 and LED2 when button is pressed
  ledFlag1 = !ledFlag1;
  ledFlag2 = !ledFlag2;
}