#define BLYNK_PRINT Serial
#define BLYNK_TEMPLATE_ID "TMPLnLhESadt"
#define BLYNK_DEVICE_NAME "Smart Farming 2"
#define BLYNK_AUTH_TOKEN "H6N2AJWPP7jWvqRLN0DbO6x78oiWq5aR"
#define ECHO_PIN 2
#define TRIG_PIN 4
#define SCL_PIN 22
#define SDA_PIN 21
#define buzzer 12
int ledPin = 13;                
int inputPin = 15;               
int pirState = LOW; 
String hama = "";          
int val = 0;  
const int servoPin = 18;

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <DS1307RTC.h>
#include <ESP32Servo.h>
#include "TimeLib.h"


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



Servo myservo;  
BlynkTimer timer;

int pos = 0;  

void setup() {
  myservo.attach(18, 500, 2400); 
  pinMode(ledPin, OUTPUT);      
  pinMode(inputPin, INPUT); 
  Serial.begin(9600);
  while (!Serial) ; // wait for serial
  delay(200);
  Serial.println("Kontrol Tambak Berjalan");
  Serial.println("-------------------");
  pinMode(TRIG_PIN, OUTPUT); //pemancar
  pinMode(ECHO_PIN, INPUT); //penerima
    Blynk.begin(auth, ssid, pass);
  timer.setInterval(1L, sendSensor);
}

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;
  //duration = waktu pantul dalam detik
}

void sendSensor() {
  tmElements_t tm;
  float jarak = readDistanceCM();
  float distance = map(jarak, 0, 400, 400, 0); //dalam cm
  if((distance >=50) && (distance<= 100)){
    Serial.print("Muka Air Mulai Naik : ");
    Serial.print(jarak);
    Serial.println(" cm");
    noTone(buzzer);
  } else if((distance >=101) && (distance<= 400)){
    Serial.print("Kondisi Permukaan Air Aman : ");
    Serial.print(jarak);
    Serial.println(" cm");
    noTone(buzzer);     
  } else {
    Serial.print("Banjir...Banjir...!!!");
    Serial.print(jarak);
    Serial.println(" cm");
    tone(buzzer, 200);   
  }
  Blynk.virtualWrite(V1, jarak); 
  
  val = digitalRead(inputPin);  
  if (val == HIGH) { 

    digitalWrite(ledPin, HIGH); 
    hama = "Hama Terdeteksi"; 
    Blynk.virtualWrite(V0, hama);
    if (pirState == LOW) {
      Serial.println("Hama Terdeteksi!");
      pirState = HIGH;
      
    }
  } else {
    digitalWrite(ledPin, LOW); 
    hama = "Tidak Ada Hama";
    Blynk.virtualWrite(V0, hama);
    if (pirState == HIGH) {
      Serial.println("Tidak Ada Hama!");
      pirState = LOW;
      
    }
  }

    
  if (RTC.read(tm)) {
    Serial.print("Sekarang Jam ");
    print2digits(tm.Hour);
    Serial.write(':');
    print2digits(tm.Minute);
    Serial.write(':');
    print2digits(tm.Second);
    Serial.print(", Tanggal ");
    Serial.print(tm.Day);
    Serial.write('/');
    Serial.print(tm.Month);
    Serial.write('/');
    Serial.print(tmYearToCalendar(tm.Year));
    Serial.println();
    if(tm.Hour == 23 && tm.Minute == 55 && tm.Second == 00)
    {
      Serial.println("Pakan Ikan Terbuka");
      for (pos = 0; pos <= 90; pos += 1) { 
        // in steps of 1 degree
        myservo.write(pos);              
        delay(15);                       
      }
      for (pos = 90; pos >= 0; pos -= 1) { 
        myservo.write(pos);            
        delay(15);                   
      }
    }


    
  } else {
    if (RTC.chipPresent()) {
      Serial.println("The DS1307 is stopped.  Please run the SetTime");
      Serial.println("example to initialize the time and begin running.");
      Serial.println();
    } else {
      Serial.println("DS1307 read error!  Please check the circuitry.");
      Serial.println();
    }
    delay(9000);
  }
  delay(1000);
}

void print2digits(int number) {
  if (number >= 0 && number < 10) {
    Serial.write('0');
  }
  Serial.print(number);
}

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