gistfile1.rb

module LikesCounter

  delegate :escape, to: URI
  delegate :get, to: RestClient

  def url
    Rails.application.routes.url_helpers.article_url(self, host: 'hungryshark.ru')
  end

  def total_likes
    tw_total + fb_total + vk_total
  end

  def tw_total
    JSON(tw_raw)['count']
  end

  def fb_total
    puts url
    JSON(fb_raw).first['total_count']
  end

  def vk_total
    vk_raw.force_encoding("windows-1251")[/var counter = (\d+)/, 1].to_i
  end

  private

  def tw_raw
    get escape "http://urls.api.twitter.com/1/urls/count.json?url=#{url}&callback=?"
  end

  def fb_raw
    get escape "https://api.facebook.com/method/fql.query?query=select
      total_count from link_stat where url=\"#{url}\"&format=json"
  end

  def vk_raw
    get escape "http://vk.com/widget_like.php?app=3123597&url=#{url}"
  end

end