Class: RumbleBundle::Scraper

Inherits:
Object
  • Object
show all
Defined in:
lib/rumble_bundle/scraper.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Scraper 



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# File 'lib/rumble_bundle/scraper.rb', line 3

def initialize
  # Set URLs used as starting points for scraping
  @base_url = 'https://www.humblebundle.com'
  @main_pages = [
    'https://www.humblebundle.com/software-bundle/',
    'https://www.humblebundle.com/books/',
    'https://www.humblebundle.com/mobile/']
end

Instance Method Details

#crawl_site ⇒ Object 



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# File 'lib/rumble_bundle/scraper.rb', line 14

def crawl_site
  # For each main page
  @main_pages.each do |page|
    # scrape the bundle from that page
    first_page = Nokogiri::HTML(open(page))
    scrape_bundle(first_page, page)

    # and if there are any sub-pages
    if first_page.at_css(".js-highlight.subtab-button")
      tab_bar = first_page.css(".js-highlight.subtab-button")
      links = tab_bar.collect{|a| @base_url + a.attr("href") }

      # scrape them for bundles too
      links.each do |link|
        scrape_bundle(Nokogiri::HTML(open(link)), link)
      end
    end
  end

end

#scrape_bundle(html, url) ⇒ Object 



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# File 'lib/rumble_bundle/scraper.rb', line 37

def scrape_bundle(html, url)

  RumbleBundle::Bundle.new.tap do |bundle|

    bundle.url = url

    # Scrape Bundle metadata

    bundle.name = html.css("title").text.chomp("(pay what you want and help charity)").strip

    bundle.charities = html.css(".hb-giftbox ~ div > .hr-tagline-popup").text.strip

    bundle.total_msrp = html.css('.hr-tagline-text').detect{|e| e.text.include?("worth")}.text.strip


    bundle.tiers = Array.new.tap do |bundle_tiers|

      # For each 'main content row' on the page, instantiate a Tier with its Products and add that Tier to the Bundle's @tiers array
      html.css(".main-content-row").each do |row|

        row_title = row.css(".dd-header-headline").text.strip

        # Stop iterating if scraper has reached a row which is not a Tier
        if row_title.downcase.include?("charity")
          break
        end

        bundle_tiers << RumbleBundle::Tier.new.tap do |tier|
          tier.description = row_title
          tier.bundle = bundle
          tier.products = Array.new.tap do |tier_products|
            row.css(".game-boxes").each do |box|
              scrape_product(box, bundle, tier).tap do |product|
                tier_products << product
              end
            end
          end
        end

      end

    end

  end unless html.at('button:contains("This Bundle is Over!")')

end

#scrape_product(box, bundle, tier) ⇒ Object

Self-explanatory



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# File 'lib/rumble_bundle/scraper.rb', line 86

def scrape_product(box, bundle, tier)

  RumbleBundle::Product.new.tap do |product|

    product.bundle = bundle
    product.tier = tier

    product.name = box.css(".dd-image-box-caption").text.strip

    product.subtitle = if box.at_css(".subtitle")
      box.css(".subtitle .callout-msrp").remove
      if box.css(".subtitle").text.strip != ""
        box.css(".subtitle").text.strip
      else
        nil
      end
    end

    product.platforms = Array.new.tap do |platforms|
      if box.at_css(".dd-availability-icon > i.hb-android")
        platforms << 'Android'
      end

      if box.at_css(".dd-availability-icon > i.hb-linux")
        platforms << 'Linux'
      end

      if box.at_css(".dd-availability-icon > i.hb-windows")
        platforms << 'Windows'
      end

      if box.at_css(".dd-availability-icon > i.hb-osx")
        platforms << 'Mac'
      end

    end

    product.drm_free = box.at_css(".dd-availability-icon > i.hb-drmfree") ?
      true : false

    product.steam_key = box.at_css(".dd-availability-icon > i.hb-steam") ?
      true : false

  end

end