require 'IRC'
require 'uri'
require 'net/http'
require 'rexml/document'
require 'IRCSSLConnection'

url = 'http://www3.de.indymedia.org/RSS/openposting.xml'
fetching_pause = 120
messaging_pause = 3
host = 'irc.indymedia.org'
port = '6697'
realname = 'openposting bot'
channel = '#de'

bot = IRC.new('openposting', host, port, realname)
IRCEvent.add_callback('endofmotd') { |event| bot.add_channel(channel) }

botthread = Thread.new(bot) { |bot| bot.connect }

fetched = []
iteration = 0

while true do
  xml = REXML::Document.new(Net::HTTP.get_response(URI.parse(url)).body)
  xml.elements.each('//item') do |element|
    unless fetched.include?(element.elements['link'].text)
      fetched.push(element.elements['link'].text)
      next if iteration == 0
      bot.send_message(
        '#test',
        element.elements['title'].text + ' | ' +
          element.elements['link'].text + ' | ' +
          element.elements['description'].text.gsub(/<.*?>/, ' ').gsub(/ {2,}/, ' ').strip
      )
      sleep messaging_pause
    end
  end
  sleep fetching_pause
  iteration += 1
end