AR: Rename each folder with a list of filenames (Main)

if(item.path == temp_path) {
  file_counter++;
  temp_path = item.path;
  return FILE_PREFIX + FILENAME_LIST[file_counter - 1];
  }
else{
  file_counter=1;
  temp_path = item.path;
  return FILE_PREFIX + FILENAME_LIST[file_counter - 1];
}