//START DEFINE BLYNK
#define BLYNK_TEMPLATE_ID "TMPL6dEyRyJHq"
#define BLYNK_TEMPLATE_NAME "S"
#define BLYNK_AUTH_TOKEN "RpqgZh5pR6E-f5y_qur7VXdgGauT3Hku"
#define BLYNK_PRINT Serial

#include <ESP32Servo.h>
//END DEFINE BLYNK

//START DEFINE DHT
#define DHTPIN 15
#define DHTTYPE DHT22
//END DEFINE DHT

#define PIN_SERVO 2
Servo myServo;

//START LIBRARY DHT
#include <DHT.h>
DHT dht(DHTPIN, DHT22);
//END LIBRARY DHT

//START LIBRARY LCD I2C
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd (0x27, 16, 2);
//END LIBRARY LCD I2C


//START LIBRARY BLYNK
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
//END LIBRARY BLYNK

char auth[] = "RpqgZh5pR6E-f5y_qur7VXdgGauT3Hku";
char ssid[] = "Wokwi-GUEST";
char pass[] = "";


BlynkTimer timer;
#define relayv0 13
#define relayv1 12
#define relayv2 14
int SW_relay = 0;


bool isTampilanLCDBerjalan = false;
unsigned long waktuMulaiLCDBerjalan = 0;

void hapusLCD() {
  if (isTampilanLCDBerjalan && (millis() - waktuMulaiLCDBerjalan >= 500)) {
    lcd.clear();
    isTampilanLCDBerjalan = false;
  }
}

// Fungsi untuk mengendalikan relay dari aplikasi Blynk
BLYNK_WRITE(V0) { 
  SW_relay =  param.asInt();
  if (SW_relay == 1){
    digitalWrite(relayv0, HIGH);
    Serial.println("RELAY TERBUKA");
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Lampu Ruang Tamu");
    lcd.setCursor(5,1);
    lcd.print("MENYALA");
    waktuMulaiLCDBerjalan = millis();
    isTampilanLCDBerjalan = true;
    Blynk.virtualWrite(V0, HIGH);
  }else {
    digitalWrite(relayv0, LOW); // Mematikan relay saat tombol di aplikasi Blynk dilepas
    Serial.println("RELAY TERTUTUP");
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Lampu Ruang Tamu");
    lcd.setCursor(6,1);
    lcd.print("MATI");
    waktuMulaiLCDBerjalan = millis();
    isTampilanLCDBerjalan = true;
    Blynk.virtualWrite(V0, LOW);
  }
}

BLYNK_WRITE(V1) {  
  SW_relay =  param.asInt();
  if (SW_relay == 1){
    digitalWrite(relayv1, HIGH);
    Serial.println("RELAY TERBUKA");
    lcd.clear();
    lcd.setCursor(3,0);
    lcd.print("Lampu Teras");
    lcd.setCursor(5,1);
    lcd.print("MENYALA");
    waktuMulaiLCDBerjalan = millis();
    isTampilanLCDBerjalan = true;
    Blynk.virtualWrite(V1, HIGH);
  }else {
    digitalWrite(relayv1, LOW); // Mematikan relay saat tombol di aplikasi Blynk dilepas
    Serial.println("RELAY TERTUTUP");
    lcd.clear();
    lcd.setCursor(3,0);
    lcd.print("Lampu Teras");
    lcd.setCursor(6,1);
    lcd.print("MATI");
    waktuMulaiLCDBerjalan = millis();
    isTampilanLCDBerjalan = true;
    Blynk.virtualWrite(V1, LOW);
  }
}

BLYNK_WRITE(V2) {  
  SW_relay =  param.asInt();
  if (SW_relay == 1){
    digitalWrite(relayv2, HIGH);
    Serial.println("RELAY TERBUKA");
    lcd.clear();
    lcd.setCursor(3,0);
    lcd.print("Lampu Dapur");
    lcd.setCursor(5,1);
    lcd.print("MENYALA");
    waktuMulaiLCDBerjalan = millis();
    isTampilanLCDBerjalan = true;
    Blynk.virtualWrite(V2, HIGH);
  }else {
    digitalWrite(relayv2, LOW); // Mematikan relay saat tombol di aplikasi Blynk dilepas
    Serial.println("RELAY TERTUTUP");
    lcd.clear();
    lcd.setCursor(3,0);
    lcd.print("Lampu Dapur");
    lcd.setCursor(6,1);
    lcd.print("MATI");
    waktuMulaiLCDBerjalan = millis();
    isTampilanLCDBerjalan = true;
    Blynk.virtualWrite(V2, LOW);
  }
}

BLYNK_WRITE(V3){
  int pinValue = param.asInt();
  
  if (pinValue == 1) {
    myServo.write(0);
    Blynk.virtualWrite(V3, HIGH);
    
  } else {
    myServo.write(90);
    Blynk.virtualWrite(V3, LOW);
  }
}

BLYNK_WRITE(V4) {
  int pinValue = param.asInt();
  
  if (pinValue == 1) {
    // Ketika tombol ditekan, baca suhu dari sensor DHT
    float humidity = dht.readHumidity();
    float temperature = dht.readTemperature();
    Blynk.virtualWrite(V4, HIGH);
    
    // Tampilkan suhu di layar LCD
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Suhu: ");
    lcd.print(temperature);
    lcd.print(" C");

    lcd.setCursor(0, 1);
    lcd.print("Kelembapan: ");
    lcd.print(humidity);
    lcd.print("%");
    delay(1000);
    lcd.clear();
    
    if (humidity > 36) {
      lcd.setCursor(0, 0);
      lcd.print("Cuaca Panas");
      lcd.setCursor(0, 1);
      lcd.print("Jendela Terbuka");
      delay(1000);
      myServo.write(0);
    } else if (humidity < 23) {
      lcd.setCursor(0, 0);
      lcd.print("Cuaca Dingin");
      lcd.setCursor(0, 1);
      lcd.print("Jendela Tertutup");
      delay(1000);
      myServo.write(90);
    } else if (humidity >= 23 && humidity <= 27) {
      lcd.print("Cuaca Sejuk");
    } else if (humidity >= 28 && humidity <= 36) {
      lcd.print("Cuaca Normal");
    }

    delay(2000);

    // Kembali ke mode suhu
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Suhu: ");
    lcd.print(temperature);
    lcd.print(" C");
    lcd.setCursor(0, 1);
    lcd.print("Kelembapan: ");
    lcd.print(humidity);
    lcd.print("%");

  } else {
    lcd.clear();
    myServo.write(90);
    Blynk.virtualWrite(V4, LOW);
  }
}

//END BLYNK

void setup() {
  myServo.attach(PIN_SERVO);
  // START LCD I2C
  lcd.init();
  lcd.backlight();
  // END LCD I2C

  // START BLYNK
  Serial.begin(115200);
  pinMode(relayv0, OUTPUT);
  pinMode(relayv1, OUTPUT);
  pinMode(relayv2, OUTPUT);
  Blynk.begin(auth, ssid, pass);
  dht.begin();
  // END BLYNK
}

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