#include <IRremote.hpp>
#define IR_RECEIVE_PIN 2
#define LED_PIN 3
bool toggle_on;
int duty_cycle;

void setup(){
  Serial.begin(9600);
  IrReceiver.begin(IR_RECEIVE_PIN, ENABLE_LED_FEEDBACK); //FEEDBACK uključuje ugrađenu LED L 
  pinMode(LED_PIN, OUTPUT); 
  toggle_on = false;
  duty_cycle=127;
}

void loop(){
  if (IrReceiver.decode()){    
    IrReceiver.printIRResultShort(&Serial);
    Serial.println(IrReceiver.decodedIRData.command);
    if(IrReceiver.decodedIRData.command==162) //on - off power button
    {
      if(toggle_on){ //ako je uključena, isključi je
        digitalWrite(LED_PIN, LOW);
        toggle_on=false;
      }
      else{ //ako je isključena, uključi je
        analogWrite(LED_PIN,duty_cycle);
        toggle_on=true;
      }      
    }
    if(IrReceiver.decodedIRData.command==2){ // + 
      duty_cycle=duty_cycle+50;
      if(duty_cycle>255) duty_cycle=255;
      analogWrite(LED_PIN,duty_cycle);
    }
    if(IrReceiver.decodedIRData.command==152){ // -
      duty_cycle=duty_cycle-50;
      if(duty_cycle<0) duty_cycle=0;
      analogWrite(LED_PIN,duty_cycle);
    }
    IrReceiver.resume();
    Serial.println(duty_cycle);
  }
}