//final// pwede rin

#include <IRremote.h>
#include <LiquidCrystal_I2C.h>

#define relay1 0
#define relay2 19
#define relay3 18
#define relay4 5
#define recv 4

#define pushbutton1 23
#define pushbutton2 15
#define pushbutton3 2
#define pushbutton4 16

IRrecv recv_pin(recv);
LiquidCrystal_I2C lcd(0x27, 20, 4);

bool led1State = false;
bool led2State = false;
bool led3State = false;
bool led4State = false;



void setup() {
  pinMode(relay1, OUTPUT);
  pinMode(relay2, OUTPUT);
  pinMode(relay3, OUTPUT);
  pinMode(relay4, OUTPUT);

  pinMode(pushbutton1, INPUT_PULLUP);
  pinMode(pushbutton2, INPUT_PULLUP);
  pinMode(pushbutton3, INPUT_PULLUP);
  pinMode(pushbutton4, INPUT_PULLUP);
  lcd.init(); 
  lcd.clear();
  lcd.backlight();
  recv_pin.enableIRIn();
  recv_pin.blink13(true);
}

void loop() {
  lcd.setCursor(0, 0);
  lcd.print("Status:");
  lcd.setCursor(8, 0);
  lcd.print("LED1 ");
  lcd.setCursor(8, 1);
  lcd.print("LED2 ");
  lcd.setCursor(8, 2);
  lcd.print("LED3 ");
  lcd.setCursor(8, 3);
  lcd.print("LED4 ");

  if(recv_pin.decode()){
    String response = String(recv_pin.decodedIRData.command);

    if(response == "48") { // NUM 1 BUTTON
      led1State = !led1State;

      digitalWrite(relay1, led1State ? HIGH : LOW);

      lcd.setCursor(13, 0);
      
      lcd.print(led1State ? "ON " : "OFF");
    }

    if(response == "24") { //NUM 2 BUTTON
      led2State = !led2State;  

      digitalWrite(relay2, led2State ? HIGH : LOW);

      lcd.setCursor(13, 1);
      
      lcd.print(led2State ? "ON " : "OFF");
    }

    if(response == "122"){ // NUM 3 BUTTON
      led3State = !led3State; 

      digitalWrite(relay3, led3State ? HIGH : LOW);

      lcd.setCursor(13, 2);
      
      lcd.print(led3State ? "ON " : "OFF");
    }

    if(response == "16"){ // NUM 4 BUTTON
      led4State = !led4State; 

      digitalWrite(relay4, led4State ? HIGH : LOW);

      lcd.setCursor(13, 3);
      
      lcd.print(led4State ? "ON " : "OFF");
    }

    if(response == "162"){ //POWER OFF BUTTON

    led1State = !led1State;
    led2State = !led2State;
    led3State = !led3State;
    led4State = !led4State;

      digitalWrite(relay1, LOW);
      digitalWrite(relay2, LOW);
      digitalWrite(relay3, LOW);
      digitalWrite(relay4, LOW);
      lcd.setCursor(13,0);
      lcd.print("OFF");
      lcd.setCursor(13,1);
      lcd.print("OFF");
      lcd.setCursor(13,2);
      lcd.print("OFF");
      lcd.setCursor(13,3);
      lcd.print("OFF");
    }
  
    if(response == "34"){ //TEST BUTTON

    led1State = !led1State;
    led2State = !led2State;
    led3State = !led3State;
    led4State = !led4State;

      digitalWrite(relay1, led1State ? HIGH : LOW);
      digitalWrite(relay2, led2State ? HIGH : LOW);
      digitalWrite(relay3, led3State ? HIGH : LOW);
      digitalWrite(relay4, led4State ? HIGH : LOW);
      lcd.setCursor(13,0);
      lcd.print(led1State ? "ON " : "OFF");
      lcd.setCursor(13,1);
      lcd.print(led2State ? "ON " : "OFF");
      lcd.setCursor(13,2);
      lcd.print(led3State ? "ON " : "OFF");
      lcd.setCursor(13,3);
      lcd.print(led4State ? "ON " : "OFF");
    }

    recv_pin.resume();
  }
    if (digitalRead(pushbutton1) == LOW) {
    led1State = !led1State;
    digitalWrite(relay1, led1State ? HIGH : LOW);
    lcd.setCursor(13, 0);
    lcd.print(led1State ? "ON " : "OFF");
    delay(500); // Add a small delay to debounce the button
  }

  // Check pushbutton2 state
  if (digitalRead(pushbutton2) == LOW) {
    led2State = !led2State;
    digitalWrite(relay2, led2State ? HIGH : LOW);
    lcd.setCursor(13, 1);
    lcd.print(led2State ? "ON " : "OFF");
    delay(500); // Add a small delay to debounce the button
  }

  // Check pushbutton3 state
  if (digitalRead(pushbutton3) == LOW) {
    led3State = !led3State;
    digitalWrite(relay3, led3State ? HIGH : LOW);
    lcd.setCursor(13, 2);
    lcd.print(led3State ? "ON " : "OFF");
    delay(500); // Add a small delay to debounce the button
  }

  // Check pushbutton4 state
  if (digitalRead(pushbutton4) == LOW) {
    led4State = !led4State;
    digitalWrite(relay4, led4State ? HIGH : LOW);
    lcd.setCursor(13, 3);
    lcd.print(led4State ? "ON " : "OFF");
    delay(500); // Add a small delay to debounce the button
  }

}