check apple store

require 'rubygems'
require 'growl' #visionmedia-growl
require 'nokogiri'
require 'open-uri'

while true
  doc = Nokogiri::HTML(%x[curl -A 'Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10_5_8; en-us) AppleWebKit/532.0+ (KHTML, like Gecko) Version/4.0.3 Safari/531.9.2009' http://store.apple.com/us])

  if doc.xpath('//img[@alt="We\'ll be back soon"]').size == 0
    Growl.notify {
        self.message = 'Apple Store updated!'
        sticky!
    }
    break
  end
  sleep 30
end