#define RED_BUTTON 15  // Pin connected to the RED button (interrupt pin)
#define GREEN_BUTTON 2  // Pin connected to the GREEN button (interrupt pin)
#define BLUE_BUTTON 0  // Pin connected to the BLUE button (interrupt pin)
#define YELLOW_BUTTON 4  // Pin connected to the YELLOW button (interrupt pin)

#define RED_LED 16      // Pin connected to the RED LED
#define GREEN_LED 17     // Pin connected to the GREEN LED
#define BLUE_LED 5      // Pin connected to the BLUE LED
#define YELLOW_LED 18    // Pin connected to the YELLOW LED

// ISR functions
void IRAM_ATTR RED_CONTROL() {
  digitalWrite(RED_LED, digitalRead(RED_BUTTON));  // Update RED LED state based on button
}
void IRAM_ATTR GREEN_CONTROL() {
  digitalWrite(GREEN_LED, digitalRead(GREEN_BUTTON));  // Update GREEN LED state based on button
}
void IRAM_ATTR BLUE_CONTROL() {
  digitalWrite(BLUE_LED, digitalRead(BLUE_BUTTON));  // Update BLUE LED state based on button
}
void IRAM_ATTR YELLOW_CONTROL() {
  digitalWrite(YELLOW_LED, digitalRead(YELLOW_BUTTON));  // Update YELLOW LED state based on button
}

class Button{
  uint8_t INpin ;
  uint8_t OUTpin ;
  enum State{
  OFF = 0,
  ON = 1 
  } ButtonState;

  public:
  Button(uint8_t OUTpin,uint8_t INpin)
  {
    this.OUTpin = OUTpin;
    this.INpin = INpin;
  }

  void ChangeState(State newState)
  {
    this.ButtonState = newState;
  }
  State getStatus()
  {
    return this.ButtonState;
  }
};


void setup() {
  // Configure button pins as input with internal pull-up
  pinMode(RED_BUTTON, INPUT_PULLUP);
  pinMode(GREEN_BUTTON, INPUT_PULLUP);
  pinMode(BLUE_BUTTON, INPUT_PULLUP);
  pinMode(YELLOW_BUTTON, INPUT_PULLUP);
  
  // Configure LED pins as output
  pinMode(RED_LED, OUTPUT);
  pinMode(GREEN_LED, OUTPUT);
  pinMode(BLUE_LED, OUTPUT);
  pinMode(YELLOW_LED, OUTPUT);
  
  // Attach interrupts to button pins
  attachInterrupt(digitalPinToInterrupt(RED_BUTTON), RED_CONTROL, CHANGE);
  attachInterrupt(digitalPinToInterrupt(GREEN_BUTTON), GREEN_CONTROL, CHANGE);
  attachInterrupt(digitalPinToInterrupt(BLUE_BUTTON), BLUE_CONTROL, CHANGE);
  attachInterrupt(digitalPinToInterrupt(YELLOW_BUTTON), YELLOW_CONTROL, CHANGE);
}

void loop() {
  // Main loop can execute other tasks; the LEDs are controlled by ISR
}