index.rss.builder

title = "#{@user.username} podcast feed"
author = @user.username
description = "#{@user.username} feed"
keywords = "comma, separated"
image = ENV["ROOT_URL"] + '/logo.png'

xml.rss "xmlns:itunes" => "http://www.itunes.com/dtds/podcast-1.0.dtd",  "xmlns:media" => "http://search.yahoo.com/mrss/",  :version => "2.0", "xmlns:atom" => "http://www.w3.org/2005/Atom" do
  xml.channel do
    xml.title title
    xml.link 'http://mikejakobsen.herokuapp.com'
    xml.description description
    xml.language 'da-DK'
    xml.atom :link, href: request.original_url, rel: 'self'
    if collection.any?
      xml.pubDate collection.first.created_at.to_s(:rfc822)
      xml.lastBuildDate collection.first.created_at.to_s(:rfc822)
    end
    xml.itunes :author, author
    xml.itunes :keywords, keywords
    xml.itunes :image, :href => image
    xml.itunes :owner do
      xml.itunes :name, author
      xml.itunes :email, current_user.email
    end
    xml.itunes :block, 'no'
    xml.itunes :category, :text => 'Technology'
    xml.itunes :explicit, 'no'

    collection.each do  |episode|
      link = episode.original_url.presence || user_episode_url(episode)
      xml.item do
        xml.title episode.title
        xml.description episode.description
        xml.pubDate episode.created_at.to_s(:rfc822)
        xml.enclosure :url => download_user_episode_url(episode, format: 'mp3', token: params[:token]),
          :length => 0, :type => 'audio/mpeg'
        xml.link link
        xml.guid({:isPermaLink => "true"}, link)
        xml.itunes :author, author
        xml.itunes :subtitle, truncate(episode.description, :length => 150)
        xml.itunes :summary, episode.description[0..3999]
        xml.itunes :image, href: image
      end
    end
  end
end