#define BLYNK_TEMPLATE_ID "TMPL6sLJat4Wr"
#define BLYNK_TEMPLATE_NAME "esp32 multisensor NUT"
#define BLYNK_AUTH_TOKEN "Fu8nUSodxdpU56-l3cJy5sTVvPz6EspA"

#include <LiquidCrystal.h>
#include <DHT.h>
#include <Ultrasonic.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

#define DHTPIN 21
#define DHTTYPE DHT22

#define TRIGGER_PIN 22
#define ECHO_PIN 23

#define LDR_PIN 33

#define LED_TEMP 0
#define LED_SR04 4
#define LED_LDR 16

const int pinLEDS[] = {LED_TEMP, LED_SR04, LED_LDR};

LiquidCrystal lcd(25, 26, 27, 14, 12, 13);
DHT dht(DHTPIN, DHTTYPE);
Ultrasonic ultrasonic(TRIGGER_PIN, ECHO_PIN);

const char *ssid = "Wokwi-GUEST";
const char *password = "";
const char auth[] = "aVhrqByru7rZ8_zaBHC654h0_hzO0BKQ";

BlynkTimer timer;

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

  lcd.begin(16, 2);
  delay(2000);
  pinMode(LDR_PIN, INPUT);

  // Initialize LEDs
  for (int i = 0; i < sizeof(pinLEDS) / sizeof(pinLEDS[0]); i++)
  {
    pinMode(pinLEDS[i], OUTPUT);
  }
  dht.begin();

  // Connect to Wi-Fi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED)
  {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

  // Connect to Blynk
  Blynk.begin(auth, ssid, password);
}

void loop()
{
  // Read data from sensors
  float temp = dht.readTemperature();
  float humi = dht.readHumidity();
  unsigned int dist = ultrasonic.read();
  int LDR = analogRead(LDR_PIN);

  // sun light (contoh: 700 lux)
  const int Sun_Light = 700;

  // Send data temp and humi to Blynk
  Blynk.virtualWrite(V0, temp);
  Blynk.virtualWrite(V1, humi);

  // sun value status
  Blynk.virtualWrite(V3, (LDR < Sun_Light) ? "LIGHT" : "DARK");

  // Update LED states based on temperature and distance
  if (temp > 30)
  {
    digitalWrite(LED_TEMP, HIGH);
  }
  else
  {
    digitalWrite(LED_TEMP, LOW);
  }

  if (dist < 50)
  {
    digitalWrite(LED_SR04, HIGH);
  }
  else
  {
    digitalWrite(LED_SR04, LOW);
  }

  // Update LED state based on 
  if (LDR < Sun_Light)
  {
    digitalWrite(LED_LDR, LOW);  // LED LDR  DARK
  }
  else
  {
    digitalWrite(LED_LDR, HIGH);  // LED LDR  LIGHT
  }
   //  Serial Monitor
  Serial.print("TEMP: ");
  Serial.print(temp);
  Serial.print(" C, HuMi: ");
  Serial.print(humi);
  Serial.print(" %, Distance: ");
  Serial.print(dist);
  Serial.print(" cm, Ohm Value: ");
  Serial.print(LDR);
  Serial.print(" Ohm, Status SUN: ");
  Serial.println((LDR < Sun_Light) ? "LIGHT" : "DARK");

  // Clear display
  lcd.clear();

  // Display temp and humi on LCD
  lcd.setCursor(0, 0);
  lcd.print("TEMP = ");
  lcd.print(temp);
  lcd.print(" C, K = ");
  lcd.print(humi);
  lcd.print("%");

  // Display dist and status on LCD
  lcd.setCursor(0, 1);
  lcd.print("Distance = ");
  lcd.print(dist);
  lcd.print(" cm, Status = ");
  lcd.print((LDR < Sun_Light) ? "DARK" : "LIGHT");

  // Scroll display to the left
  for (int i = 0; i < 16; i++)
  {
    lcd.scrollDisplayLeft();
    delay(300);
  }

  // Delay
  delay(1000);
}