#define ECHO_PIN 4
#define TRIG_PIN 2
#define pinBuzzer 5
#define THINGER_SERIAL_DEBUG

#include <ESP32Servo.h>
#include <ThingerESP32.h>

#define USERNAME "Down"
#define DEVICE_ID "Down1"
#define DEVICE_CREDENTIAL "8HA5Gv?Bw+&Ydt!y"

#define SSID "Wokwi-GUEST"
#define SSID_PASSWORD ""

ThingerWifi thing(USERNAME, DEVICE_ID, DEVICE_CREDENTIAL);

Servo myservo;
int rotasi = 90;
int interval = 0;
String palang = "";
float jarak = 0;

float readDistanceCM(){
  digitalWrite(TRIG_PIN, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);
  int duration = pulseIn(ECHO_PIN, HIGH);
  return duration * 0.034/2;
}

void soundBuzzer(){
  if(interval < 500){
    tone(pinBuzzer, 250);
  }else
  if(interval > 500){
    tone(pinBuzzer, 100,800);
  };
}

void setup() {
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  Serial.begin(115200);
  pinMode(pinBuzzer, OUTPUT);
  myservo.attach(19);
  myservo.write(90);

  thing.add_wifi(SSID, SSID_PASSWORD);

  thing["Palang Tertutup"] >> outputValue(palang);
  thing["Jarak"] >> outputValue(jarak);
}

void loop() {
  thing.handle();
  tutupPalang();
  interval +=100;
  if(interval>1000) interval = 0;

}

void tutupPalang(){
  jarak = readDistanceCM();
  if(jarak > 0 && jarak < 100 ){
    palang = "tertutup";
    soundBuzzer();
    tutup();
  }else{
    palang = "terbuka";
    buka();
    noTone(pinBuzzer);
  }
}

void tutup(){
  if(rotasi <= 90){
    myservo.write(rotasi);
    delay(100);
    rotasi--;
  }
  if(rotasi <= 0 ) rotasi = 0;
}

void buka(){
  if(rotasi <= 90){
    myservo.write(rotasi);
    delay(100);
    rotasi+=4;
  }
  if(rotasi >= 90 ) rotasi = 90;
}