#include <IRremote.h>

#define ir_receiver_pin 12
#define greenPin 4
#define redPin 3
#define yellowPin 2

#define RED_COLOR 0x30
#define GREEN_COLOR 0x18
#define YELLOW_COLOR 0x7A
#define OFF_COLOR 0xA2

void setup(){
  Serial.begin(9600);
  IrReceiver.begin(ir_receiver_pin);

  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(yellowPin, OUTPUT);

  setColor(0,0,0);
}

void loop(){
  if(IrReceiver.decode()){
    unsigned long irCode = IrReceiver.decodedIRData.command;
    Serial.println(irCode, HEX);
    handleIRCommand(irCode);

    IrReceiver.resume();
  }
}

void handleIRCommand(unsigned long irCode) {
  switch (irCode) {
    case RED_COLOR:
      setColor(255, 0, 0); // Red
      break;
    case GREEN_COLOR:
      setColor(0, 255, 0); // Green
      break;
    case YELLOW_COLOR:
      setColor(0, 0, 255); // Yellow
      break;
    case OFF_COLOR:
      setColor(0, 0, 0); // Off
      break;
    default:
      Serial.println("Unknown command");
      break;
  }
}

void setColor(int red, int green, int yellow) {
  analogWrite(redPin, red);
  analogWrite(greenPin, green);
  analogWrite(yellowPin, yellow);
}