#define BLYNK_PRINT Serial
#define BLYNK_TEMPLATE_ID "TMPLB4idQmeU"
#define BLYNK_DEVICE_NAME "Feeder"
#define BLYNK_AUTH_TOKEN "1Xxvue5aXkLNhqV4RQlvJpGvgl7iKUMp"

#define ECHO_PIN 4
#define TRIG_PIN 2
#define LED_PIN 5

#include <Wire.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

#include <RTClib.h>
#include <ESP32Servo.h>

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

BlynkTimer timer;

RTC_DS1307 rtc;

Servo myservo;


void setup()
{
  Serial.begin(9600);

  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);

  pinMode(LED_PIN, OUTPUT);

  myservo.attach(15);

  if (! rtc.begin()) {
    Serial.println("Couldn't find RTC");
    Serial.flush();
    abort();
  }

  if (! rtc.isrunning()) {
    Serial.println("RTC is NOT running, let's set the time!");
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  }

  Blynk.begin(auth, ssid, pass);
  timer.setInterval(1000L, sendSensor);

}

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

void indicator(float distance)
{
  int penuh = 50;
  float isi = (penuh - distance) / penuh * 100;

  isi < 20 ? digitalWrite(LED_PIN, HIGH), Blynk.logEvent("volume_pakan", String("Pakan hampir habis! : ") + isi + String(" %")) : digitalWrite(LED_PIN, LOW);

  Blynk.virtualWrite(V0, isi);
  
}

String getTime() {
  DateTime now = rtc.now();

  char buf1[] = "hh:mm:ss";
  String time = now.toString(buf1);
  return time;
}

void feeder(String sekarang) 
{
  if(sekarang == "05:00:57")
  {
    myservo.write(0);
    delay(1000);
    myservo.write(90);
    Blynk.logEvent("feeding", String("Pemberian pakan : ") + sekarang + String(" WIB"));
  }

  if(sekarang == "11:00:57")
  {
    myservo.write(0);
    delay(1000);
    myservo.write(90);
    Blynk.logEvent("feeding", String("Pemberian pakan : ") + sekarang + String(" WIB"));
  }

  if(sekarang == "17:00:57")
  {
    myservo.write(0);
    delay(1000);
    myservo.write(90);
    Blynk.logEvent("feeding", String("Pemberian pakan : ") + sekarang + String(" WIB"));
  }
  
  if(sekarang == "23:00:57")
  {
    myservo.write(0);
    delay(1000);
    myservo.write(90);
    Blynk.logEvent("feeding", String("Pemberian pakan : ") + sekarang + String(" WIB"));
  }
}

void sendSensor()
{
  float distance = readDistance();    
  indicator(distance);

  String sekarang = getTime();
  feeder(sekarang);

}

BLYNK_WRITE(V1)
{
 int pinValue = param.asInt();
 if(pinValue > 0)
 {
  myservo.write(0);
  delay(1000);
  myservo.write(90);
  Blynk.logEvent("feeding", String("Pemberian pakan manual"));
  Blynk.virtualWrite(V1, 0);
 }
}

void loop()
{
  Blynk.run();
  timer.run();
}