#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#include <ESP32Servo.h>


#define TRIGGER_PIN 2
#define ECHO_PIN 4

#define LCD_ADDRESS 0x27
#define LCD_COLUMNS 16
#define LCD_ROWS 2

#define ONE_WIRE_BUS 34
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

#define BLYNK_TEMPLATE_ID "TMPL6zmK6t3qI"
#define BLYNK_TEMPLATE_NAME "PROJEK GEDEN"
#define BLYNK_AUTH_TOKEN "SNg6mGdNbKacGu4L_RsOsaKgJE8Fh-Sv"

LiquidCrystal_I2C lcd(LCD_ADDRESS, LCD_COLUMNS, LCD_ROWS);

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

int relayPin1 = 23; // pin untuk relay 1 = Pompa 1 : Pengisian
int relayPin2 = 18; // pin untuk relay 2 = Pompa 2 : Pengurasan
int relayPin3 = 5; // pin untuk relay 3  = Lampu
int relayPin4 = 19; // pin untuk relay 4 = Kipas


Servo feeder;
int servoPin = 13;
int openAngle = 180;
int closeAngle = 0;
bool feederOpen = false;


void setup()
{
  feeder.attach(servoPin);
  feeder.write(closeAngle);
  delay(1000);
  
  Serial.begin(115200);
  sensors.begin();

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

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

  Blynk.begin(auth, ssid, pass);

  pinMode(relayPin1, OUTPUT);
  pinMode(relayPin2, OUTPUT);
  pinMode(relayPin3, OUTPUT);
  pinMode(relayPin4, OUTPUT);

}

  BLYNK_WRITE(V1) // fungsi untuk mengontrol relay 1
{
  int value = param.asInt();
  digitalWrite(relayPin1, value);
}

BLYNK_WRITE(V2) // fungsi untuk mengontrol relay 2
{
  int value = param.asInt();
  digitalWrite(relayPin2, value);
}

BLYNK_WRITE(V3) // fungsi untuk mengontrol relay 3
{
  int value = param.asInt();
  digitalWrite(relayPin3, value);
}

BLYNK_WRITE(V4) // fungsi untuk mengontrol relay 4
{
  int value = param.asInt();
  digitalWrite(relayPin4, value);
}

BLYNK_WRITE(V6)
{
  int buttonState = param.asInt();
  if (buttonState == 1 && !feederOpen)
  {
    feeder.write(openAngle);
    feederOpen = true;
  }
  else if (buttonState == 0 && feederOpen)
  {
    feeder.write(closeAngle);
    feederOpen = false;
  }
}

void loop()
{
  digitalWrite(TRIGGER_PIN, LOW);
  delayMicroseconds(2);

  digitalWrite(TRIGGER_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIGGER_PIN, LOW);

  long duration = pulseIn(ECHO_PIN, HIGH);
  float distance = duration * 0.034 / 2;

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Tinggi: ");
  lcd.print(distance);
  lcd.print(" cm");
  
  Blynk.virtualWrite(V0, distance);

  if  (distance <=10){// ketika ketinggian air kurang dari 10 cm, nyalakan relay 1
    digitalWrite(relayPin1, HIGH);
  }
  else if (distance >= 20) { // ketika air mencapai ketinggian 20 cm, matikan relay 1 dan nyalakan relay 2
    digitalWrite(relayPin1, LOW);
    digitalWrite(relayPin2, HIGH);
  }
   else {
    digitalWrite(relayPin1, HIGH);
    digitalWrite(relayPin2, LOW);
   }
   

  delay(2000);

/// Program Suhu
  sensors.requestTemperatures();
  float temp = sensors.getTempCByIndex(0);
  lcd.clear();
  lcd.setCursor(0, 1);
  lcd.print("Suhu: ");
  lcd.print(temp);
  lcd.print("C");
  
  Blynk.virtualWrite(V5, temp);

  if (temp >= 25) {
    digitalWrite(relayPin3, HIGH);
  } else {
    digitalWrite(relayPin3, LOW);
  }
  delay(2000);

  Blynk.run();
}