#define BLYNK_TEMPLATE_ID "TMPL6OlPcdeSU"
#define BLYNK_TEMPLATE_NAME "Pakan Ikan"
#define BLYNK_AUTH_TOKEN "A0goyeT-xVSJbQUQvtVl4O-XWYUC8gDe"

#define ECHO_PIN 15 // Pin Ultrasonik
#define TRIG_PIN 22 // Pin RTC
#define LED_PIN 27 // Pin Led

#include <ESP32Servo.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>

char auth[] = "A0goyeT-xVSJbQUQvtVl4O-XWYUC8gDe";
const int servoPin = 2; // Pin Servo
Servo servo;
BlynkTimer timer;

#include <Wire.h>
#include <RTClib.h>
RTC_DS1307 rtc;

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

void setup() {
  Serial.begin(115200);
  servo.attach(servoPin);
  servo.write(0);

  lcd.init();
  lcd.backlight();
  lcd.clear();

  Wire.begin();
  if (!rtc.begin()) {
    Serial.println("RTC tidak terhubung");
    while (1);
  }

  pinMode(LED_PIN, OUTPUT);
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  Blynk.begin(auth, "Wokwi-GUEST", "");
  lcd.clear();
}

void loop() {
  Blynk.run();

  DateTime now = rtc.now();
  int tahun = now.year();
  int bulan = now.month();
  int tanggal = now.day();
  int jam = now.hour();
  int menit = now.minute();
  int detik = now.second();

  long duration, distance;
  digitalWrite(TRIG_PIN, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);
  duration = pulseIn(ECHO_PIN, HIGH);
  distance = duration / 58;

  lcd.setCursor(0, 0);
  lcd.print(String() + "TANGGAL: " + tanggal + "-" + bulan + "-" + tahun);
  lcd.setCursor(0, 1);
  lcd.print(String() + "WAKTU: " + jam + ":" + menit + ":" + detik + " ");

  // Pengaturan Led
  if (distance < 20) {
    digitalWrite(LED_PIN, HIGH); // Led akan menyala jika jarak kurang dari 20cm
    Blynk.virtualWrite(V1, 1);
  } else {
    digitalWrite(LED_PIN, LOW);
    Blynk.virtualWrite(V1, 0);
  }

  if ((jam == 7) && (menit == 0) && (detik == 5)) {
    beripakan();
  }

  delay(1000);
}

void beripakan() {
  int waktu = 5; // Durasi memberi makan ikan
  for (waktu = 5; waktu > 0; waktu--) {
    lcd.setCursor(0, 0);
    lcd.print("Memberi Makan Ikan...");
    lcd.setCursor(0, 1);
    lcd.print("Dalam " + String(waktu) + " Detik");
    servo.write(180);
    delay(3000);
  }
  lcd.clear();
  servo.write(0);
  lcd.clear();
}