// ===== BLYNK CONFIG =====
#define BLYNK_TEMPLATE_ID "TMPL6qstp5drb"
#define BLYNK_TEMPLATE_NAME "Suhu"
#define BLYNK_AUTH_TOKEN "Cxh3lVmHpXZ_4KwFocAolWYuzAGpeERm"

#define BLYNK_PRINT Serial

#include <WiFi.h>
#include <BlynkSimpleEsp32.h>
#include <DHT.h>

// ===== WIFI (WOKWI) =====
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

// ===== PIN =====
#define LED1 16  // Biru (dingin)
#define LED2 17  // Kuning (hangat)
#define LED3 18  // Merah (panas)

#define DHTPIN 25
#define DHTTYPE DHT22

DHT dht(DHTPIN, DHTTYPE);
BlynkTimer timer;

// ===== FUNGSI UTAMA =====
void sendDHT() {
  float suhu = dht.readTemperature();

  if (isnan(suhu)) {
    Serial.println("Gagal membaca suhu!");
    return;
  }

  Serial.print("Suhu: ");
  Serial.println(suhu);

  // Kirim ke Blynk
  Blynk.virtualWrite(V0, suhu);

  // ===== LOGIKA SUHU =====
  if (suhu <= 25) {
    //  DINGIN
    digitalWrite(LED1, HIGH);
    digitalWrite(LED2, LOW);
    digitalWrite(LED3, LOW);

    Blynk.virtualWrite(V1, 1);
    Blynk.virtualWrite(V2, 0);
    Blynk.virtualWrite(V3, 0);

  } 
  else if (suhu < 30) {
    //  HANGAT
    digitalWrite(LED1, LOW);
    digitalWrite(LED2, HIGH);
    digitalWrite(LED3, LOW);

    Blynk.virtualWrite(V1, 0);
    Blynk.virtualWrite(V2, 1);
    Blynk.virtualWrite(V3, 0);

  } 
  else {
    //  PANAS
    digitalWrite(LED1, LOW);
    digitalWrite(LED2, LOW);
    digitalWrite(LED3, HIGH);

    Blynk.virtualWrite(V1, 0);
    Blynk.virtualWrite(V2, 0);
    Blynk.virtualWrite(V3, 1);
  }
}

void setup() {
  Serial.begin(115200);

  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);

  dht.begin();

  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);

  // Update tiap 2 detik
  timer.setInterval(2000L, sendDHT);
}

void loop() {
  Blynk.run();
  timer.run();
}