#include <IRremote.h> // Include the library

// Define the IRrecv Pin
#define Remote_RECEIVER 2 // Signal Pin of IR receiver

uint16_t Relay[] = {32, 33, 25, 26}; // Array holding the GPIOs connected to the relays
bool Relay_state[sizeof(Relay) / sizeof(Relay[0])] = {false}; // Each relay's state

#define size (sizeof(Relay) / sizeof(Relay[0])) // Define the size of the array

IRrecv Remote(Remote_RECEIVER); // Instantiate an IRrecv Object

void setup() {
  Serial.begin(115200); // Initialize serial communication
  Remote.enableIRIn(); // Start the receiver

  // Set all of the GPIOs connected to the relays to OUTPUT MODE
  for (int i = 0; i < size; i++) {
    pinMode(Relay[i], OUTPUT);
    digitalWrite(Relay[i], LOW); // Ensure all relays are initially off
  }
}

void loop() {
  if (Remote.decode()) { // Decode the data if available
    Serial.print("Received command: ");
    Serial.println(Remote.decodedIRData.command); // Print the received command

    switch (Remote.decodedIRData.command) {
      case 48: // Command 1
        Relay_state[0] = !Relay_state[0];
        digitalWrite(Relay[0], Relay_state[0]);
        break;

      case 24: // Command 2
        Relay_state[1] = !Relay_state[1];
        digitalWrite(Relay[1], Relay_state[1]);
        break;

      case 122: // Command 3
        Relay_state[2] = !Relay_state[2];
        digitalWrite(Relay[2], Relay_state[2]);
        break;

      case 16: // Command 4
        Relay_state[3] = !Relay_state[3];
        digitalWrite(Relay[3], Relay_state[3]);
        break;

      case 162: // Command for all relays
        for (int i = 0; i < size; i++) {
          Relay_state[i] = !Relay_state[i];
          digitalWrite(Relay[i], Relay_state[i]);
        }
        break;

      default:
        // Handle other commands if necessary
        break;
    }

    Remote.resume(); // Receive the next value
  }
}