module PlayScrape

# File lib/play_scrape.rb, line 64
def self.get_html_page_for(package_name)
  res = Typhoeus.get(PLAY_URL + package_name)
end

# File lib/play_scrape.rb, line 68
def self.scrape_app_icon(package_name)
  res = self.get_html_page_for(package_name)
  if res
    html = Nokogiri::HTML(res.body)
    icon = html.css(APP_ICON_CSS_PATH).first
    if icon
      icon.attributes['src'].value
    else
      nil
    end
  else
    nil
  end
end

# File lib/play_scrape.rb, line 25
def self.scrape_app_info(package_name)
  res = self.get_html_page_for(package_name)

  if res.code == 200
    app_info = PlayScrape::AppInfo.new
    html = Nokogiri::HTML(res.body)
    name = html.css(APP_NAME_CSS_PATH).first
    description = html.css(APP_DESC_CSS_PATH).first
    app_rating = html.css(APP_RATING_CSS_PATH).first
    num_ratings = html.css(APP_NUM_RATINGS_CSS_PATH).first
    icon_url = html.css(APP_ICON_CSS_PATH).first

    # A bit hacky below but it'll do
    installs_text = html.css(APP_ADDITIONAL_INFO_CSS_PATH)[2].text.strip
    installs = installs_text.gsub(",", "").split("-").map(&:to_i)  if installs_text.match(INSTALLS_REGEX)
    version_text = html.css(APP_ADDITIONAL_INFO_CSS_PATH)[3].text.strip
    version = version_text if version_text.match(VERSION_REGEX)

    dev_links = html.css(APP_DEV_URL_CSS_PATH)
    dev_url = ""
    if !dev_links.empty? && dev_links.first.text.match(/Visit Developer's Website/)
      dev_url = dev_links.first.attributes['href'].value.match(URL_REGEX)[1]
    end

    app_info.app_name = name.text
    app_info.package_name = package_name
    app_info.description = description.inner_html
    app_info.rating = app_rating.text.to_f
    app_info.num_ratings = num_ratings.text.gsub(",", "").to_i
    app_info.icon_url = icon_url.attributes['src'].value
    app_info.dev_url = dev_url
    app_info.min_installs = installs.first
    app_info.max_installs = installs.last
    app_info.version = version

    app_info
  end
end