#define BLYNK_TEMPLATE_ID "TMPL6K1MISYh9"
#define BLYNK_TEMPLATE_NAME "UTS"
#define BLYNK_AUTH_TOKEN "u3mCt172EGlvii3x17SwFfOCGhj_v96o"

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

// Inisialisasi LCD
LiquidCrystal_I2C lcd(0x27, 20, 4);

// Inisialisasi DHT
#define DHTPIN 18
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);

// Inisialisasi PIR
#define PIRPIN 5

// Pin LED
#define LED1 12
#define LED2 14
#define LED3 27
#define LED4 26
#define LED5 25

// WiFi Credentials
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

// Variabel untuk melacak status LED
bool led1Status = LOW;
bool led2Status = LOW;
bool led3Status = LOW;
bool led4Status = LOW;
bool led5Status = LOW;

// Variabel untuk melacak kontrol manual
bool manualControl = false;
// bool motionButton = false;

void setup() {
  Serial.begin(115200);
  
  // Inisialisasi WiFi dan Blynk
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
  
  // Inisialisasi LCD
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print("Initializing...");
  
  // Inisialisasi DHT sensor
  dht.begin();
  
  // Inisialisasi PIR sensor
  pinMode(PIRPIN, INPUT);

  // Inisialisasi LED
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  pinMode(LED4, OUTPUT);
  pinMode(LED5, OUTPUT);
}

void loop() {
  Blynk.run();

  // Membaca sensor PIR hanya jika kontrol manual tidak aktif
  if (!manualControl) {
    bool motionDetected = digitalRead(PIRPIN);
    if (motionDetected) {
      lcd.setCursor(0, 0);
      lcd.print("Selamat Datang!   ");
      
      // Nyalakan semua LED
      digitalWrite(LED1, HIGH);
      digitalWrite(LED2, HIGH);
      digitalWrite(LED3, HIGH);
      digitalWrite(LED4, HIGH);
      digitalWrite(LED5, HIGH);

      // Membaca suhu dan kelembaban
      float temperature = dht.readTemperature();
      float humidity = dht.readHumidity();
    
      if (!isnan(temperature) && !isnan(humidity)) {
        lcd.setCursor(0, 1);
        lcd.print("Temp: ");
        lcd.print(temperature);
        lcd.print(" C  ");
        
        lcd.setCursor(0, 2);
        lcd.print("Humidity: ");
        lcd.print(humidity);
        lcd.print(" %   ");
        
        // Kirim data ke Blynk
        Blynk.virtualWrite(V1, temperature);
        Blynk.virtualWrite(V2, humidity);
      } else {
        lcd.setCursor(0, 1);
        lcd.print("DHT error!      ");
      }
    } else {
      lcd.setCursor(0, 0);
      lcd.print("Tidak ada gerakan    ");
      
      // Matikan semua LED
      digitalWrite(LED1, LOW);
      digitalWrite(LED2, LOW);
      digitalWrite(LED3, LOW);
      digitalWrite(LED4, LOW);
      digitalWrite(LED5, LOW);

      // Bersihkan baris suhu dan kelembaban
      lcd.setCursor(0, 1);
      lcd.print("                    ");
      lcd.setCursor(0, 2);
      lcd.print("                    ");
    }
  }

  delay(2000);
}

// Fungsi kontrol lampu melalui Blynk
BLYNK_WRITE(V1) {
  manualControl = true; // Aktifkan kontrol manual
  led1Status = param.asInt();
  digitalWrite(LED1, led1Status);
}
BLYNK_WRITE(V2) {
  manualControl = true; // Aktifkan kontrol manual
  led2Status = param.asInt();
  digitalWrite(LED2, led2Status);
}
BLYNK_WRITE(V3) {
  manualControl = true; // Aktifkan kontrol manual
  led3Status = param.asInt();
  digitalWrite(LED3, led3Status);
}
BLYNK_WRITE(V4) {
  manualControl = true; // Aktifkan kontrol manual
  led4Status = param.asInt();
  digitalWrite(LED4, led4Status);
}
BLYNK_WRITE(V5) {
  manualControl = true; // Aktifkan kontrol manual
  led5Status = param.asInt();
  digitalWrite(LED5, led5Status);
}