const int pinLedR = 17, pinLedY = 18, pinLedG = 19;
const int pinLedR1 = 13, pinLedG1 = 12, pinLedB1 = 11, pinBtnR = 10;
const int pinLedR2 = 7, pinLedG2 = 6, pinLedB2 = 5, pinBtnY = 4;
const int pinLedR3 = 3, pinLedG3 = 2, pinLedB3 = 9, pinBtnG = 8;
const int longPressDuration = 3000;  // 3 seconds for a long press
unsigned long buttonPressTime = 0;

void setup() {
  pinMode(pinLedR, OUTPUT);
  pinMode(pinLedY, OUTPUT);
  pinMode(pinLedG, OUTPUT);
  pinMode(pinLedR1, OUTPUT);
  pinMode(pinLedG1, OUTPUT);
  pinMode(pinLedB1, OUTPUT);
  pinMode(pinLedR2, OUTPUT);
  pinMode(pinLedG2, OUTPUT);
  pinMode(pinLedB2, OUTPUT);
  pinMode(pinLedR3, OUTPUT);
  pinMode(pinLedG3, OUTPUT);
  pinMode(pinLedB3, OUTPUT);
  pinMode(pinBtnR, INPUT_PULLUP);
  pinMode(pinBtnY, INPUT_PULLUP);
  pinMode(pinBtnG, INPUT_PULLUP);
  Serial.begin(9600);
}

void loop() {
  // membaca keadaan tombol
  if (digitalRead(pinBtnG) == LOW) {
    // Long press on green button turns off all LEDs
    if (millis() - buttonPressTime >= longPressDuration) {
      illuminateRGB(0, 0, 0);  // Turn off all LEDs
      digitalWrite(pinLedR, LOW);
      digitalWrite(pinLedY, LOW);
      digitalWrite(pinLedG, LOW);
    } else {
      illuminateRGB(0, 255, 0);  // Green
      digitalWrite(pinLedR, LOW);
      digitalWrite(pinLedY, LOW);
      digitalWrite(pinLedG, HIGH);
    }
  } else {
    if (digitalRead(pinBtnR) == LOW) {
      illuminateRGB(255, 0, 0);  // Red
      digitalWrite(pinLedR, HIGH);
      digitalWrite(pinLedY, LOW);
      digitalWrite(pinLedG, LOW);
    } else if (digitalRead(pinBtnY) == LOW) {
      illuminateRGB(255, 255, 0);  // Yellow
      digitalWrite(pinLedR, LOW);
      digitalWrite(pinLedY, HIGH);
      digitalWrite(pinLedG, LOW);
    }
  }
  delay(10);
}

void illuminateRGB(int red, int green, int blue) {
  analogWrite(pinLedR1, red);
  analogWrite(pinLedG1, green);
  analogWrite(pinLedB1, blue);
  analogWrite(pinLedR2, red);
  analogWrite(pinLedG2, green);
  analogWrite(pinLedB2, blue);
  analogWrite(pinLedR3, red);
  analogWrite(pinLedG3, green);
  analogWrite(pinLedB3, blue);
 
  // Update button press time when any button is pressed
  if (red == 255 || green == 255 || blue == 255) {
    buttonPressTime = millis();
  }
}