#include <OneWire.h>
#include <DallasTemperature.h>

// ===== PIN =====
#define ONE_WIRE_BUS 2
#define BTN_START 3
#define LED_HIJAU 4
#define LED_KUNING 5
#define LED_MERAH 6
#define LED_KOMPOR 7
#define BUZZER 8

OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

// ===== STATUS =====
bool komporNyala = false;

void setup() {
  pinMode(BTN_START, INPUT_PULLUP);

  pinMode(LED_HIJAU, OUTPUT);
  pinMode(LED_KUNING, OUTPUT);
  pinMode(LED_MERAH, OUTPUT);
  pinMode(LED_KOMPOR, OUTPUT);
  pinMode(BUZZER, OUTPUT);

  sensors.begin();
  Serial.begin(9600);
}

void loop() {

  // ===== BACA SUHU =====
  sensors.requestTemperatures();
  float suhu = sensors.getTempCByIndex(0);

  // ===== TOMBOL START =====
  if (digitalRead(BTN_START) == LOW) {
    komporNyala = true;
  }

  // ===== AUTO STOP =====
  if (suhu >= 100) {
    komporNyala = false;
  }

  // ===== OUTPUT KOMPOR =====
  digitalWrite(LED_KOMPOR, komporNyala);

  // ===== RESET LED =====
  digitalWrite(LED_HIJAU, LOW);
  digitalWrite(LED_KUNING, LOW);
  digitalWrite(LED_MERAH, LOW);
  digitalWrite(BUZZER, LOW);

  // ===== INDIKATOR SUHU =====
  if (suhu < 90) {
    digitalWrite(LED_HIJAU, HIGH);
  } 
  else if (suhu < 100) {
    digitalWrite(LED_KUNING, HIGH);
  } 
  else {
    digitalWrite(LED_MERAH, HIGH);
    digitalWrite(BUZZER, HIGH);
  }

  // ===== DEBUG =====
  Serial.print("Suhu: ");
  Serial.print(suhu);
  Serial.print(" | Tombol: ");
  Serial.print(digitalRead(BTN_START));
  Serial.print(" | Kompor: ");
  Serial.println(komporNyala ? "ON" : "OFF");

  delay(200);
}