#define BLYNK_TEMPLATE_ID "TMPL6rjewKa8a"
#define BLYNK_TEMPLATE_NAME "utp utp"
#define BLYNK_AUTH_TOKEN "HnO_wjmCgyJZ-beZO7xoZSHphvlMabQ9"
#define BLYNK_PRINT Serial

#include <DHT.h>
#include <Adafruit_SSD1306.h>
#include <Adafruit_GFX.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

// Blynk WiFi
char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

// DHT
#define DHTPIN 14
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);

// OLED
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
#define OLED_RESET -1
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

// LED & buzzer
const int ledBiru = 2;
const int ledKuning = 0;
const int ledMerah = 4;
const int buzzer = 5;

bool buzzerManual = false;
bool sudahKirimPeringatan = false;

// Fungsi untuk matikan buzzer
void matikanBuzzer() {
  noTone(buzzer);
}

// Fungsi untuk nyalakan buzzer dengan frekuensi
void nyalakanBuzzer() {
  tone(buzzer, 1000);
}

// Kontrol buzzer dari aplikasi Blynk
BLYNK_WRITE(V5) {
  int val = param.asInt();
  buzzerManual = (val == 1);

  if (buzzerManual) {
    nyalakanBuzzer();
  } else {
    matikanBuzzer();
  }
}

void setup() {
  Serial.begin(115200);
  Wire.begin();
  Wire.setClock(400000);
  dht.begin();

  Blynk.begin(auth, ssid, pass, "blynk.cloud", 80); // <<== gunakan port dari kode pertama

  pinMode(ledBiru, OUTPUT);
  pinMode(ledKuning, OUTPUT);
  pinMode(ledMerah, OUTPUT);
  pinMode(buzzer, OUTPUT);

  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println("Gagal menginisialisasi OLED");
    while (1);
  }

  display.clearDisplay();
  display.display();
}

void loop() {
  Blynk.run();

  float suhu = dht.readTemperature();
float kelembapan = dht.readHumidity();

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

// Tampilkan ke OLED
display.clearDisplay();
display.setTextSize(1);
display.setTextColor(SSD1306_WHITE);
display.setCursor(0, 10);
display.print("Suhu: ");
display.print(suhu);
display.println(" C");
display.print("Kelembapan: ");
display.print(kelembapan);
display.println(" %");
display.display();

// Kirim ke Blynk
Blynk.virtualWrite(V3, suhu);
Blynk.virtualWrite(V4, kelembapan);

// Logika kondisi
if (suhu >= 25 && suhu <= 30 && kelembapan >= 55 && kelembapan <= 65) {
  digitalWrite(ledBiru, HIGH);
  digitalWrite(ledKuning, LOW);
  digitalWrite(ledMerah, LOW);
  Blynk.virtualWrite(V0, 0);
  Blynk.virtualWrite(V1, 0);
  Blynk.virtualWrite(V2, 255);
  matikanBuzzer();
  sudahKirimPeringatan = false;
}
else if (suhu >= 31 && suhu <= 33 && kelembapan >= 66 && kelembapan <= 70) {
  digitalWrite(ledBiru, LOW);
  digitalWrite(ledKuning, HIGH);
  digitalWrite(ledMerah, LOW);
  Blynk.virtualWrite(V0, 0);
  Blynk.virtualWrite(V1, 255);
  Blynk.virtualWrite(V2, 0);
  matikanBuzzer();
  sudahKirimPeringatan = false;
}
else if ((suhu < 25 || suhu > 33) || (kelembapan < 50 || kelembapan > 70)) {
  digitalWrite(ledBiru, LOW);
  digitalWrite(ledKuning, LOW);
  digitalWrite(ledMerah, HIGH);
  Blynk.virtualWrite(V0, 255);
  Blynk.virtualWrite(V1, 0);
  Blynk.virtualWrite(V2, 0);

  if (buzzerManual) {
    nyalakanBuzzer();
  } else {
    matikanBuzzer();
  }

  if (!sudahKirimPeringatan) {
    Blynk.logEvent("peringatan", "PERINGATAN! Kondisi kandang TIDAK AMAN!");
    sudahKirimPeringatan = true;
  }
}
  delay(2000);
}