//Fill-in information from Blynk Device Info here
#define BLYNK_TEMPLATE_ID "TMPL6dTp450Rm"
#define BLYNK_TEMPLATE_NAME "Monitor DHT22"
#define BLYNK_AUTH_TOKEN "rajMirDKHkHMCYrRLF2F2mpZsDr6WnyD"

#define BLYNK_PRINT Serial

#include <DHT.h>
#include <Wire.h>
#include <WiFi.h> 
#include <WiFiClient.h>
#include <LiquidCrystal_I2C.h>
#include <BlynkSimpleEsp32.h> 

char ssid[] = "Wokwi-GUEST"; 
char pass[] = ""; 

BlynkTimer timer; //Untuk push data dibutuhkan blynk timer (untuk code push data dapat dilihat di blynk example)

#define DHTPIN 15 //Pin DHT22
#define DHTTYPE DHT22	 

// Alamat I2C LCD
const int lcdAddress = 0x27; // Sesuaikan dengan alamat LCD I2C Anda
const int lcdColumns = 16;
const int lcdRows = 2;

DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(lcdAddress, lcdColumns, lcdRows); 

float humidity, temp;
unsigned long previousMillis = 0;
const long interval = 3000; 

void setup()
{
  Serial.begin(115200);
  dht.begin();
  lcd.init();
  lcd.backlight();

  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass); //Menginisiasi Blynk
}

bool isFirstConnect = true;
BLYNK_CONNECTED() {
  if (isFirstConnect)
  {
    Blynk.syncAll();
    isFirstConnect = false;
  }
}

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

void gettemperature() {
  unsigned long currentMillis = millis();
  if (currentMillis - previousMillis >= interval) {
    previousMillis = currentMillis;
    humidity = dht.readHumidity();
    temp = dht.readTemperature();
    Blynk.virtualWrite(V0, temp);
    Blynk.virtualWrite(V1, humidity);
    
  if (isnan(humidity) || isnan(temp)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }
 }
  Serial.println("Temperature: " + String(temp, 1) + "C");
  Serial.println("Humidity: " + String(humidity, 1) + "%");
  Serial.println("% send to Blynk");
  delay(5000);
 
  lcd.setCursor(0, 0);
  lcd.print("Temperature: ");
  lcd.print(temp);
  lcd.setCursor(0, 1);
  lcd.print("Humidity: ");
  lcd.print(humidity);
  delay(1000);

  // Cek jika suhu melebihi 30 derajat Celsius
  if (temp > 30) {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Suhu melebihi");
    lcd.setCursor(0, 1);
    lcd.print("30 C");
    delay(5000);
    lcd.clear();
    sendNotification(); // Kirim notifikasi ke Blynk
  }
}

void sendNotification() {
    Blynk.logEvent("high_temp", "Suhu melebihi 30 derajat Celcius");
  }