namespace :util do

  desc "Setup task."
  task :setup do
    ##
    # Requires.
    require 'rubygems'
    require 'open-uri'
    begin
      require 'hpricot'
    rescue LoadError
      raise "ERROR: Task requires hpricot."
    end
    
    ##
    # Constants
    HOST                = ENV['host'] || "localhost"
    DOC                 = Hpricot(open("http://#{HOST}:9090/"))
    BALANCERS           = DOC.search("/html/body/h3/a")
    NUMBER_OF_BALANCERS = BALANCERS.size
  end

  desc "Scrape status of each Mongrel via Load Balancer Manager."
  task :check_balancers => 'util:setup' do
    if NUMBER_OF_BALANCERS
      2.step(NUMBER_OF_BALANCERS * 2, 2) do |n|
        2.step(100, 1) do |i|  ### hella lame!
          status = DOC.search("/html/body/table[#{n}]/tr[#{i}]/td[6]").inner_html
          break if status.empty?
          puts DOC.search("/html/body/table[#{n}]/tr[#{i}]/td/a").inner_html + ":" + status
        end
      end
    end
  end
  
end