#define ledRedPin 4
#define ledYellowPin 3
#define ledGreenPin 2

void setup() {
  Serial.begin(9600);
  Serial.println("Muhamad Rizal Arfiyan");
  Serial.println("22.11.5227");
  pinMode(ledRedPin, OUTPUT);
  pinMode(ledYellowPin, OUTPUT);
  pinMode(ledGreenPin, OUTPUT);
}

void allOn() {
  digitalWrite(ledRedPin, HIGH);
  digitalWrite(ledYellowPin, HIGH);
  digitalWrite(ledGreenPin, HIGH);
}

void allOff() {
  digitalWrite(ledRedPin, LOW);
  digitalWrite(ledYellowPin, LOW);
  digitalWrite(ledGreenPin, LOW);
}

void leftToRight() {
  allOff();
  digitalWrite(ledRedPin, HIGH);
  delay(1000);
  digitalWrite(ledRedPin, LOW);
  digitalWrite(ledYellowPin, HIGH);
  delay(1000);
  digitalWrite(ledYellowPin, LOW);
  digitalWrite(ledGreenPin, HIGH);
  delay(1000);
  digitalWrite(ledGreenPin, LOW);
}

void rightToLeft() {
  allOff();
  digitalWrite(ledGreenPin, HIGH);
  delay(1000);
  digitalWrite(ledGreenPin, LOW);
  digitalWrite(ledYellowPin, HIGH);
  delay(1000);
  digitalWrite(ledYellowPin, LOW);
  digitalWrite(ledRedPin, HIGH);
  delay(1000);
  digitalWrite(ledRedPin, LOW);
}

void loop() {
  if (Serial.available()) {
    String perintah = Serial.readStringUntil('\n');
    if (perintah == "merah-on") {
      Serial.println("LED merah menyala");
      digitalWrite(ledRedPin, HIGH);
    } else if (perintah == "merah-mati") {
      Serial.println("LED merah mati");
      digitalWrite(ledRedPin, LOW);
    } else if (perintah == "kuning-menyala") {
      Serial.println("LED kuning menyala");
      digitalWrite(ledYellowPin, HIGH);
    } else if (perintah == "kuning-mati") {
      Serial.println("LED kuning mati");
      digitalWrite(ledYellowPin, LOW);
    } else if (perintah == "hijau-menyala") {
      Serial.println("LED hijau menyala");
      digitalWrite(ledGreenPin, HIGH);
    } else if (perintah == "hijau-mati") {
      Serial.println("LED hijau mati");
      digitalWrite(ledGreenPin, LOW);
      Serial.println("Semua LED mati");
    } else if (perintah == "all-mati") {
      allOff();
      Serial.println("Semua LED menyala");
    } else if (perintah == "all-menyala") {
      allOn();
    } else if (perintah == "led berkedip dari kanan berjalan ke kiri") {
      Serial.println("LED berkedip dari kanan berjalan ke kiri");
      rightToLeft();
    } else if (perintah == "led berkedip dari kiri berjalan ke kanan") {
      Serial.println("LED berkedip dari kiri berjalan ke kanan");
      leftToRight();
    } else {
      Serial.println("Perintah tidak ada!");
    }
  }
}