You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: index_category_changes.rb
    path of file: ./repos/workarea/core/app/workers/workarea
    
    the code of the file until where you have to start completion: module Workarea
  class IndexCategoryChanges
    include Sidekiq::Worker
    include Sidekiq::CallbacksWorker

    sidekiq_options(
      enqueue_on: {
        Catalog::Category => [:save, :save_release_changes],
        with: -> { [changes, Release.current.present?] }
      },
      ignore_if: -> { changes['product_ids'].blank? },
      lock: :until_executing
    )


    
    def perform(changes, for_release = false)
      return unless changes['product_ids'].present?

      ids = if for_release
        # This is a shortcut because if you're resorting products within a release,
        # the `changes` hash doesn't reflect the repositioning within the release,
        # only the difference between what's live and what's in the release.
        #
        # Reindexing all of them is a shortcut to having to manually build a diff
        # between the changesets in the possible affected releases.
        changes['product_ids'].flatten.uniq
      else
        require_index_ids(*changes['product_ids'])
      end

      if ids.size > max_count
        ids.each { |id| IndexProduct.perform_async(id) }
      else
        Catalog::Product.in(id: ids).each do |product|
          begin
            IndexProduct.perform(product)
          rescue
            IndexProduct.perform_async(product.id)
          end
        end