#define BLYNK_TEMPLATE_ID "TMPL65ihoYDVX"
#define BLYNK_TEMPLATE_NAME "LampuESP32"
#define BLYNK_AUTH_TOKEN "hbc9Zg2UskvRKWDFzLWGJY3XSfn2SwDJ"
#define BLYNK_PRINT Serial

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <DHT.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

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

#define LDRanalog 34
#define DHTPIN 5          
#define DHTTYPE DHT22      
DHT dht(DHTPIN, DHTTYPE);
BlynkTimer timer;
#define button1_pin 26
#define relay1_pin 13
int relay1_state = 0;
int val = 0;
int inputPin = 17;
int pirState = LOW;
int buzzerPin = 15;
#define button1_vpin    V1

const float GAMMA = 0.7;
const float RL10 = 50;
const int led =6;
const int pir =19;

BLYNK_CONNECTED() {
  Blynk.syncVirtual(button1_vpin);
  
}

BLYNK_WRITE(button1_vpin) {
  relay1_state = param.asInt();
  digitalWrite(relay1_pin, relay1_state);
}

void setup()
{
  // Debug console
  Serial.begin(115200);
    pinMode(button1_pin, INPUT_PULLUP);
    pinMode(relay1_pin, OUTPUT);
    digitalWrite(relay1_pin, HIGH);
  Blynk.begin(auth, ssid, pass);
    dht.begin();
    timer.setInterval(2500L, sendSensor);
    pinMode(2,OUTPUT);
    pinMode(led,OUTPUT);
    pinMode(pir,INPUT);
    pinMode(LDRanalog, INPUT);
    Serial.begin(9600);
    pinMode(inputPin, INPUT);
    pinMode(buzzerPin, OUTPUT); // Set pin buzzer sebagai output
    Serial.begin(9600);
}

void loop()
{
  Blynk.run();
  timer.run(); 
  listen_push_buttons();
  int nilaiADClux = analogRead(LDRanalog);
  Serial.print("ADC     = ");
  Serial.println(nilaiADClux);
  float voltage = nilaiADClux * 5/4095.0;
  float resistance = 2000 * voltage / (1 - voltage / 5);
  float lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, (1 / GAMMA));

  if(lux<=200)
  {
    digitalWrite(2, HIGH);
  }
  else
  {
    digitalWrite(2, LOW);
  }
  Serial.print("Lux           = ");
  Serial.println(lux);

  const int IP=digitalRead(pir);
  Serial.println(IP);
  delay(100);
  if(IP==1){
    digitalWrite(led,HIGH);
    delay(1000);  
  }
  else{
    digitalWrite(led,LOW);
    delay(1000); 
  } 

  val = digitalRead(inputPin);  // Baca status dari sensor PIR
  
  if (val == HIGH) {  // Jika gerakan terdeteksi
    if (pirState == LOW) {  // Jika sebelumnya tidak ada gerakan
      Serial.println("Gerakan Terdeteksi!");
      digitalWrite(buzzerPin, HIGH); // Nyalakan buzzer
      pirState = HIGH; // Update status PIR
    }
  } else {
    if (pirState == HIGH) { // Jika sebelumnya ada gerakan
      Serial.println("Gerakan Tidak Terdeteksi");
      digitalWrite(buzzerPin, LOW); // Matikan buzzer
      pirState = LOW; // Update status PIR
    }
  }
}
void sendSensor() {
  float h = dht.readHumidity();
  float t = dht.readTemperature(); 
  if (isnan(h) || isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  Blynk.virtualWrite(V5, h);
  Blynk.virtualWrite(V0, t);
  Serial.print("Temperature : ");
  Serial.print(t);
  Serial.print("    Humidity : ");
  Serial.println(h);

}

void listen_push_buttons(){
    if(digitalRead(button1_pin) == LOW){
      delay(200);
      control_relay(1);
      Blynk.virtualWrite(button1_vpin, relay1_state); //update button state
    }
    
}

void control_relay(int relay){
    if(relay == 1){
    relay1_state = !relay1_state;
    digitalWrite(relay1_pin, relay1_state);
    Serial.print("Relay1 State = ");
    Serial.println(relay1_state);
    delay(50);
  }
  
}