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: stories_controller.rb
    path of file: ./repos/forem/app/controllers
    
    the code of the file until where you have to start completion: class StoriesController < Applicat
    
  def show
    @story_show = true
    path = "/#{params[:username].downcase}/#{params[:slug]}"
    if (@article = Article.includes(:user).find_by(path: path)&.decorate)
      handle_article_show
    elsif (@article = Article.find_by(slug: params[:slug])&.decorate)
      handle_possible_redirect
    elsif (@podcast = Podcast.available.find_by(slug: params[:username]))
      @episode = @podcast.podcast_episodes.available.find_by!(slug: params[:slug])
      handle_podcast_show
    elsif (@page = Page.find_by(slug: "#{params[:username]}/#{params[:slug]}", is_top_level_path: true))
      handle_page_display
    else
      not_found
    end