A script to detect referb iPad mini 2 availablility in China.

detect.rb

#!/usr/bin/env ruby
# encoding = UTF-8

require "open-uri"
begin
  require 'mailx' # Or main for *nix
rescue LoadError => e
  STDERR.puts "Please install mail gem first."
  exit 1
end

LINK = "http://store.apple.com/cn/browse/home/specialdeals/ipad/ipad_mini_2"

def detect
  html = open(LINK).read 
  index = html.index("抱歉，没有可用的产品，请稍后再回来查看。")
  if index and index > 0
    puts "Mini 2 not availble."
  else
    puts "Mini 2 is available."
    send_mail
  end
end

def send_mail
  options = { :address              => "<smtp_server>",
              :port                 => 25, # maybe other port for ssl.
              :domain               => '<mail_server_domain>',
              :user_name            => '<username>',
              :password             => '<password>',
              :authentication       => 'plain',
              :enable_starttls_auto => true  }

  Mail.defaults do
    delivery_method :smtp, options
  end

  Mail.deliver do
         to '<receiver>'
       from '<sender>'
    subject 'iPad mini 2 referb available!'
       body "iPad mini 2 referb available to buy.\n\n#{LINK}"
  end
end

detect