require File.dirname(__FILE__) + '/../backpack'
require 'digest/md5'
require 'hpricot'

module Thief::Models

  class Page < Base

    ##
    # Fetch an XML export of all pages. Take MD5 of each. Save if changed.
    
    def self.update
      b = Backpack.init_from_config
      doc = b.export

      (((doc/:backpack)/:pages)/:page).each do |page_element|
        page = Page.find_or_initialize_by_backpack_id(page_element['id'])
        md5 = Digest::MD5.hexdigest(page_element.to_s)
        if md5 != page.md5
          page.md5 = md5
          page.title = page_element['title']
          page.link = "#{b.domain}/page/#{page_element['id']}"
          page.save
        end
      end
    end # self.load_pages

    def self.find_recently_updated
      find(:all, :order => "updated_at DESC")
    end

  end # class Page

end