thetreehouse_video_download_script.rb

#!/usr/bin/env ruby
# require 'rubygems'
require 'mechanize'
require 'debugger'
require 'sidekiq'

# Sidekiq server is multi-threaded so our Redis connection pool size defaults to concurrency (-c)
Sidekiq.configure_server do |config|
  config.redis = { :namespace => 'treehouse', :url => 'redis://127.0.0.1:6379' }
end

class TreehouseWorker
  include Sidekiq::Worker

  def perform(topic)
    a = Mechanize.new
    a.get('https://teamtreehouse.com/') do |page|


      # Click the login link
      login_page = a.click(page.link_with(:text => /Sign in/))

      # Submit the login form
      my_page = login_page.form_with(:action => 'https://teamtreehouse.com/person_session') do |f|
        f.send('user_session[email]=', YOUR_EMAIL)
        f.send('user_session[password]=', YOUR_PASSWORD)
      end.click_button

      library_page = my_page.link_with(:href => "/library").click
      achievements_page = library_page.links_with(:href => /#{topic}/)[0].click
        index_number = 0
      system("mkdir '#{achievements_page.title}'")

      achievements_page.search('.grid-75 div.contained a').each_with_index do |link, i|
        if link.attributes["href"]
          lesson_link = link.attributes["href"].value
          puts lesson_link

          lesson_page = achievements_page.link_with(:href => lesson_link).click

          next unless lesson_page.respond_to?(:title)

            formatted_index_number = sprintf("%03d", index_number)
            file_name = "#{formatted_index_number}_" + lesson_page.title.gsub(/\W/, '_')
            lesson_page.search('.module-downloads a strong').each do |name_tag|
              begin
                download_link = name_tag.parent.attributes["href"].value
                if name_tag.content == "High Definition Video"
                  lesson_page.link_with(:href => download_link).click.save("#{file_name}.mp4")
                  system("mv #{file_name}.mp4 '#{achievements_page.title}'")
                  index_number += 1
                elsif name_tag.content == "Video Transcript"
                  lesson_page.link_with(:href => download_link).click.save("#{file_name}.srt")
                  system("mv #{file_name}.srt '#{achievements_page.title}'")
                end
              rescue
                redo
              end
            end
        end

      end
    end
  end
end

 %w(
  how-to-make-a-website-with-wordpress
  local-wordpress-development
  how-to-build-your-business-through-blogging
  website-optimization
  build-a-responsive-website
  how-to-build-a-wordpress-plugin
  git-basics
  wordpress-for-website-owners
  illustrator-foundations-3
  android-tools
  build-a-simple-android-app
  build-an-interactive-website
  how-to-start-a-business
  photoshop-foundations
  build-a-blog-reader-android-app
  console-foundations-2
  how-to-build-your-company
  how-to-make-a-wordpress-blog
  how-to-market-your-business
  how-to-write-a-business-plan
  framework-basics
  how-to-build-a-wordpress-theme
 ).each do |topic|
    TreehouseWorker.perform_async(topic)
  end