Bluetooth Integration with IR Remote Controller

Hello everyone, I am almost done with my ir remote controller project but I am now stuck in trying to make my remote work via Bluetooth; without having to connect my Arduino, IR receiver and IR transmitter.
I found a code that is for Bluetooth setup and here is the loop of it:

void loop() 
{ 
  char recvChar;
  while(1){
    if(blueToothSerial.available()){//check if there's any data sent from the remote bluetooth shield
      recvChar = blueToothSerial.read();
      Serial.print(recvChar);
    }
    if(Serial.available()){//check if there's any data sent from the local serial terminal, you can add the other applications here
      recvChar  = Serial.read();
      blueToothSerial.print(recvChar);
    }
  }
}

And as for my project code itself for the remote controller, here it is:

void loop() {
  
  if (Serial.available() && Serial.read() == '0') {       /////here is the transmiiting part
    while (Serial.available() == 0) {
    }
    delay(50);
    while (Serial.available() > 0) {
      readString += (char)Serial.read();
    }
    value=  readString.toInt();
    Serial.print(readString);
    readString = "";
    
         for (int i = 0; i < 3; i++) {
            irsend.sendNEC(value,32); 
            delay(40);
         }
         }while (irrecv.decode(&results)) {       //////here is the receiving part
                   Serial.println(results.value);
                  
      irrecv.resume(); 
         
       
  }
}

I am having trouble understanding what to give to the bluetooth and what the bluetooth will give me...i mean i just cant integrate it!