aio.rb

module AIO

  require 'nokogiri'
  require 'open-uri'

  class R

    class << self

      def class
        self
      end

      def get_latest(user)

        class_name = self.name.split('::')[1].downcase

        page_url = 'http://arabia.io/u/' + user + '/' + class_name + 's'
        page = Nokogiri::HTML(open(page_url))

        query = '//div[@class="' + class_name + '_title"]/h2/a'
        items = page.search(query)

        latest_item = items.first

        case self.name
          when 'AIO::Post'
            latest_item.values.first[/\d+/]
          when 'AIO::Comment'
            latest_item.values.first[/comment_\d+/][/\d+/]
        end

      end

    end

  end

  class Post < R; end
  class Comment < R; end

  class << self
    def latest_for(user)
      [ AIO::Post.get_latest(user), AIO::Comment.get_latest(user) ]
    end
  end

end