#include <IRremote.h>

#define PIN_RECEIVER 23

IRrecv receiver(PIN_RECEIVER);

const int relay1Pin = 27;
const int relay2Pin = 26;
const int relay3Pin = 25;
const int relay4Pin = 33;

bool relaysOn = false;

void setup() {
  Serial.begin(115200);
  pinMode(relay1Pin, OUTPUT);
  pinMode(relay2Pin, OUTPUT);
  pinMode(relay3Pin, OUTPUT);
  pinMode(relay4Pin, OUTPUT);
  receiver.enableIRIn();


  digitalWrite(relay1Pin, LOW);
  digitalWrite(relay2Pin, LOW);
  digitalWrite(relay3Pin, LOW);
  digitalWrite(relay4Pin, LOW);
}

void loop() {
  if (receiver.decode()) {
    translateIR();
    receiver.resume();
    delay(100);
  }
}

void translateIR() {
  switch (receiver.decodedIRData.command) {
    case 162:
      Serial.println("POWER");
      if (relaysOn) {
        digitalWrite(relay1Pin, LOW);
        digitalWrite(relay2Pin, LOW);
        digitalWrite(relay3Pin, LOW);
        digitalWrite(relay4Pin, LOW);
      } else {
        digitalWrite(relay1Pin, HIGH);
        digitalWrite(relay2Pin, HIGH);
        digitalWrite(relay3Pin, HIGH);
        digitalWrite(relay4Pin, HIGH);
      }
      relaysOn = !relaysOn;
      break;
      
    case 48:
      Serial.println("num: 1");
      toggleRelay(relay1Pin);
      break;

    case 24:
      Serial.println("num: 2");
      toggleRelay(relay2Pin);
      break;

    case 122:
      Serial.println("num: 3");
      toggleRelay(relay3Pin);
      break;

    case 16:
      Serial.println("num: 4");
      toggleRelay(relay4Pin);
      break;
      
    default:
      Serial.print("Unknown command: ");
      Serial.println(receiver.decodedIRData.command);
  }
}

void toggleRelay(int pin) {
  int state = digitalRead(pin);
  digitalWrite(pin, !state);
}