#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <RTClib.h>
#include "DHTesp.h"
#include <ESP32Servo.h>
#if defined(ESP8266)
#include <ESP8266WiFi.h>
#elif defined(ESP32)
#include <WiFi.h>
#endif
#include "ThingsBoard.h"
#include <PubSubClient.h>
#define TRIG 4
#define ECHO 5

RTC_DS1307 rtc;
LiquidCrystal_I2C lcd(0x27,20,4);  
const int DHT_PIN = 15;
DHTesp dhtSensor;
Servo myservo;
float JARAK;
const char *ssid = "Wokwi-GUEST";
const char *password = "";

#define CLIENTID "0b5d9620-55ce-11ed-bb6e-8f34ea6bbc86"
#define TOKEN "7nWK08Rk99vqnMJkkyrI"

const char* mqtt_server = "thingsboard.cloud";
WiFiClient wifiClient;
PubSubClient client(wifiClient);
int status = WL_IDLE_STATUS;
int n;
//==============================>Setup
void setup(){
  Serial.begin(115200);
  pinMode(2,INPUT);
  pinMode(14,OUTPUT);
  pinMode(13,OUTPUT);
  pinMode(TRIG, OUTPUT);
  pinMode(ECHO, INPUT);
  //==============================>Servo
  myservo.attach(12);  
  myservo.write(0);
  //==============================>Counter
  n=0;
  //==============================>DHT
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  //==============================>LCD Setup
  lcd.init();                      
  lcd.backlight();
  //==============================>Connecting
  initwifi();
  delay(10);
  //==============================>RTC Setup
  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__)));
  }
}
//==============================>Tampilan RTC, DHT
void monitoring(){
  DateTime now = rtc.now();
  char buf1[] = "hh:mm:ss";
  lcd.setCursor(0,0);
  lcd.print(now.toString(buf1));
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  lcd.setCursor(14,0);
  lcd.print("T:" + String(data.temperature, 0));
  lcd.setCursor(19,0);
  lcd.print("C");
  lcd.setCursor(14,1);
  lcd.print("H:" + String(data.humidity, 0));
  lcd.setCursor(19,1);
  lcd.print("%");
}
//==============================>Rumus Pengukuran Jarak
void ultra(){
  digitalWrite(TRIG, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG, LOW);
  int duration = pulseIn(ECHO, HIGH);
  JARAK = duration * 0.034 / 2;
}
//==============================>if else sisa pakan (Kirim Ke Thingsboard)
void sisa(){
  ultra();
  if (JARAK <15){
    lcd.setCursor(0,1);
    lcd.print("              ");
    lcd.setCursor(0,1);
    lcd.print("PAKAN BANYAK");

    String payload2 = "{";
    payload2 += "\"SISA PAKAN\":";
    payload2 += "BANYAK";
    payload2 += "}";
    char attributes2[1000];
    payload2.toCharArray( attributes2, 1000 );
    client.publish( "v1/devices/me/attributes",attributes2);
    Serial.println( attributes2 );
  }
  else if (JARAK>=16 && JARAK <=27){
    lcd.setCursor(0,1);
    lcd.print("              ");
    lcd.setCursor(0,1);
    lcd.print("PAKAN SETENGAH");

    String payload2 = "{";
    payload2 += "\"SISA PAKAN\":";
    payload2 += "SETENGAH";
    payload2 += "}";
    char attributes2[1000];
    payload2.toCharArray( attributes2, 1000 );
    client.publish( "v1/devices/me/attributes",attributes2);
    Serial.println( attributes2 );
  }
  else if (JARAK>=28){
    lcd.setCursor(0,1);
    lcd.print("              ");
    lcd.setCursor(0,1);
    lcd.print("PAKAN SEDIKIT");

    String payload2 = "{";
    payload2 += "\"SISA PAKAN\":";
    payload2 += "SEDIKIT";
    payload2 += "}";
    char attributes2[1000];
    payload2.toCharArray( attributes2, 1000 );
    client.publish( "v1/devices/me/attributes",attributes2);
    Serial.println( attributes2 );
  }
}
//==============================>Clear LCD (DHT)
void cleardht(){
  lcd.setCursor(16,0);
  lcd.print("   ");
  lcd.setCursor(16,1);
  lcd.print("   ");
}
//==============================>Clear Pesan Pemberian Pakan
void clearpesan(){
  lcd.setCursor(0,2);
  lcd.print("                    ");
  lcd.setCursor(0,3);
  lcd.print("                    ");
}
//==============================>if else Pemberian Pakan & Pesannya (Kirim Ke Thingsboard)
void pesan(){
  DateTime now = rtc.now();
  char buf1[] = "hh:mm:ss";
  if (digitalRead(2) == HIGH )
   {
     myservo.write(90);
     digitalWrite(13, HIGH);
     delay(2000);
     digitalWrite(13, LOW);
     myservo.write(0);
     lcd.setCursor(0,2);
     lcd.print("PAKAN LANGSUNG");
     lcd.setCursor(0,3);
     lcd.print("TELAH DIBERIKAN");

     String payload = "{";
     payload += "\"PEMBERIAN PAKAN\":";
     payload += "LANGSUNG.OK";
     payload += "}";
     char attributes[1000];
     payload.toCharArray( attributes, 1000 );
     client.publish( "v1/devices/me/attributes",attributes);
     client.publish( "v1/devices/me/telemetry",attributes);
     Serial.println( attributes );
   }
  else if ((now.hour())==07 && (now.minute())==00 && n==0)
   {
     myservo.write(90);
     digitalWrite(13, HIGH);
     delay(2000);
     digitalWrite(13, LOW);
     myservo.write(0);
     lcd.setCursor(0,2);
     lcd.print("PAKAN PAGI");
     lcd.setCursor(0,3);
     lcd.print("TELAH DIBERIKAN");

     String payload = "{";
     payload += "\"PEMBERIAN PAKAN\":";
     payload += "PAGI.OK";
     payload += "}";
     char attributes[1000];
     payload.toCharArray( attributes, 1000 );
     client.publish( "v1/devices/me/attributes",attributes);
     client.publish( "v1/devices/me/telemetry",attributes);
     Serial.println( attributes );
     delay(100);
     n=n+1;
   }
   else if ((now.hour())==13 && (now.minute())==00 && n==1)
   {
     myservo.write(90);
     digitalWrite(13, HIGH);
     delay(2000);
     digitalWrite(13, LOW);
     myservo.write(0);
     lcd.setCursor(0,2);
     lcd.print("PAKAN SIANG");
     lcd.setCursor(0,3);
     lcd.print("TELAH DIBERIKAN");

     String payload = "{";
     payload += "\"PEMBERIAN PAKAN\":";
     payload += "SIANG.OK";
     payload += "}";
     char attributes[1000];
     payload.toCharArray( attributes, 1000 );
     client.publish( "v1/devices/me/attributes",attributes);
     client.publish( "v1/devices/me/telemetry",attributes);
     Serial.println( attributes );
     delay(100);
     n=n+1;
   }
   else if ((now.hour())==18 && (now.minute())==00 && n==2)
   {
     myservo.write(90);
     digitalWrite(13, HIGH);
     delay(2000);
     digitalWrite(13, LOW);
     myservo.write(0);
     lcd.setCursor(0,2);
     lcd.print("PAKAN SORE");
     lcd.setCursor(0,3);
     lcd.print("TELAH DIBERIKAN");

     String payload = "{";
     payload += "\"PEMBERIAN PAKAN\":";
     payload += "SORE.OK";
     payload += "}";
     char attributes[1000];
     payload.toCharArray( attributes, 1000 );
     client.publish( "v1/devices/me/attributes",attributes);
     client.publish( "v1/devices/me/telemetry",attributes);
     Serial.println( attributes );
     delay(100);
     n=0;
   }
}
//==============================>Loop Kode
void loop(){
  if ( !client.connected() ){
    reconnect();
    }
  monitoring();
  pesan();
  sisa();
  getData();
  delay(1000);
  cleardht();
  clearpesan();
}
//==============================>Pengiriman Data DHT ke Thingsboard
void getData(){
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  String payload3 = "{";
  payload3 += "\"Temperature\":";
  payload3 += data.temperature;
  payload3 += ",";
  payload3 += "\"Kelembaban\":";
  payload3 += data.humidity;
  payload3 += "}";
  char attributes3[1000];
  payload3.toCharArray( attributes3, 1000 );
  client.publish( "v1/devices/me/telemetry",attributes3);
  Serial.println( attributes3 );
}
//==============================>Connecting Thingsboard
void initwifi(){
  Serial.print(" Connect to : ");
  lcd.setCursor(4,1);
  lcd.print("Connecting....");
  Serial.println(ssid);
  WiFi.begin(ssid, password);
  //WiFi.config(IP, NETWORK, NETMASK, DNS);
  while (WiFi.status() != WL_CONNECTED){
    delay(500);
    Serial.print("...");
    }
  Serial.print("\n");
  Serial.print("IP address : ");
  Serial.print(WiFi.localIP());
  Serial.print("\n");
  Serial.print("Connect to : ");
  Serial.println(ssid);    
  client.setServer( mqtt_server, 1883);
  lcd.clear();
}
//==============================>Reconnecting Thingsboard
void reconnect(){
  // Loop until we're reconnected
  while (!client.connected()) {
    status = WiFi.status();
    if ( status != WL_CONNECTED) {
      WiFi.begin(ssid, password);
      while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        Serial.print(".");
      }
      Serial.println("Connected to AP");
    }
    Serial.print("Connecting to ThingsBoard node ...");
    // Attempt to connect (clientId, username, password)
    if ( client.connect(CLIENTID, TOKEN, "") ) {
      Serial.println( "[DONE]" );
    } else {
      Serial.print( "[FAILED] [ rc = " );
      Serial.println( " : retrying in 5 seconds]" );
      delay( 500 );
    }
  }
}