const int ledPin = 12;
const int buttonPin = 14;
const unsigned interval = 20000;
const unsigned long ledOnDuration = 5000;
unsigned long previousMillis = 0;
bool automaticLed = false;

void setup() {
  // put your setup code here, to run once:
  pinMode(ledPin, OUTPUT);
  pinMode(buttonPin, INPUT_PULLUP);
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
}

void loop() {
  // put your main code here, to run repeatedly:
  unsigned long currentMillis = millis();
  
  if (currentMillis - previousMillis >= interval) {
    automaticLed = true;
    if (digitalRead(ledPin) == HIGH) {
      digitalWrite(ledPin, LOW);
      Serial.println("LED Mati Otomatis karena akan ada Kontrol Otomatis");
    }
    delay(2000);
    previousMillis = currentMillis;
    digitalWrite(ledPin, HIGH);
    Serial.println("LED Menyala Otomatis 5 detik");
    delay(ledOnDuration);
    digitalWrite(ledPin, LOW);
    Serial.println("LED Mati");
    automaticLed = false;
  } else {
    if (automaticLed == false) {
      int buttonState = digitalRead(buttonPin);

      if (buttonState == LOW) {
        digitalWrite(ledPin, HIGH);
        Serial.println("LED Menyala Karena Button Ditekan");
      } else {
        digitalWrite(ledPin, LOW);
        Serial.println("LED Mati Karena Button Dilepas");
      }
    }
    delay(100);
  }
}