#include <NewPing.h>
#include "DHT.h"
#define TRIGGER_PIN_1 2 // Pin trigger sensor ultrasonik pertama
#define ECHO_PIN_1 3    // Pin echo sensor ultrasonik pertama
#define TRIGGER_PIN_2 4 // Pin trigger sensor ultrasonik kedua
#define ECHO_PIN_2 5    // Pin echo sensor ultrasonik kedua
#define MAX_DISTANCE 20 // Jarak maksimum deteksi sensor (20 cm)
#define MIN_DISTANCE 1  // Jarak minimum deteksi sensor (1 cm)
#define MAX_KUOTA 10    // Kuota maksimal ruangan

#define DHTPIN 6
#define DHTTYPE DHT22

long durasi, jarak;
const int buttonPin = 7;  // the number of the pushbutton pin
const int ledPin = 13;    // the number of the LED pin
int kuota_saat_ini = MAX_KUOTA; // Kuota saat ini

NewPing sonar1(TRIGGER_PIN_1, ECHO_PIN_1, MAX_DISTANCE);
NewPing sonar2(TRIGGER_PIN_2, ECHO_PIN_2, MAX_DISTANCE);

// variables will change:
int buttonState = 0;  // variable for reading the pushbutton status
DHT dht(DHTPIN, DHTTYPE);

void setup() {
  // initialize the LED pin as an output:
  Serial.begin(9600);
  pinMode(buttonPin, INPUT_PULLUP);
  pinMode(LED_BUILTIN, OUTPUT);
 
  dht.begin();

}

void loop() {
  // read the state of the pushbutton value:
  //digitalWrite(ledPin, LOW);
  buttonState = digitalRead(buttonPin);
  if(buttonState == LOW){
    while(1) {
     
    // Reading temperature or humidity takes about 250 milliseconds!
    // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
    float h = dht.readHumidity();
    // Read temperature as Celsius (the default)
    float t = dht.readTemperature();
    // Read temperature as Fahrenheit (isFahrenheit = true)
    float f = dht.readTemperature(true);

    // Check if any reads failed and exit early (to try again).
    if (isnan(h) || isnan(t) || isnan(f)) {
      Serial.println(F("Failed to read from DHT sensor!"));
      return;
    }

    // Compute heat index in Fahrenheit (the default)
    float hif = dht.computeHeatIndex(f, h);
    // Compute heat index in Celsius (isFahreheit = false)
    float hic = dht.computeHeatIndex(t, h, false);

    // Serial.print(F("Humidity: "));
    // Serial.print(h);
    // Serial.print(F("%  Temperature: "));
    // Serial.print(t);
    // Serial.print(F("°C "));
    // Serial.print(f);
    // Serial.print(F("°F  Heat index: "));
    // Serial.print(hic);
    // Serial.print(F("°C "));
    // Serial.print(hif);
    // Serial.println(F("°F"));

    int jarak_sensor1 = sonar1.ping_cm();
    int jarak_sensor2 = sonar2.ping_cm();

    if (jarak_sensor1 < MIN_DISTANCE && jarak_sensor2 < MIN_DISTANCE) {
      // Kedua sensor mendeteksi objek terlalu dekat
      return;
    }

    if (jarak_sensor1 >= MIN_DISTANCE && jarak_sensor1 <= 9) {
      // Sensor 1 mendeteksi objek dalam rentang yang diinginkan
      kuota_saat_ini++;
      Serial.print("Objek keluar. Kuota saat ini: ");
      Serial.println(kuota_saat_ini);
      digitalWrite(ledPin, LOW);
    }

    if (jarak_sensor2 >= MIN_DISTANCE && jarak_sensor2 <= 9) {
      // Sensor 2 mendeteksi objek dalam rentang yang diinginkan
      if (t>40){
        // Kuota sudah penuh, nyalakan LED indikator
        Serial.print(F("%  Temperature: "));
        Serial.println(t);
        digitalWrite(ledPin, HIGH);
        Serial.println("Dilarang Masuk");
        delay(1000);
        digitalWrite(ledPin, LOW);
        
      }  
      else if (kuota_saat_ini >= 1) {
        kuota_saat_ini--;
        digitalWrite(ledPin, LOW);
        Serial.print(F("%  Temperature: "));
        Serial.println(t);
        Serial.print("boleh masuk. Kuota saat ini: ");
        Serial.println(kuota_saat_ini);
      } 
      else{
        digitalWrite(ledPin, HIGH);
        Serial.println("Kuota ruangan penuh!");
      }
    }

    delay(1000); // Delay 1 detik untuk menghindari pembacaan ganda
    
    }
  }  
}