#!/usr/local/bin/ruby
require 'net/irc'

class SimpleClient < Net::IRC::Client
  def on_rpl_welcome(m)
    super
    post JOIN, '#onelirc'
    post NOTICE, '#onelirc', 'Hi'
    sleep 5
    finish
  end

  def on_error(m)
    finish
  end

  def on_err_nicknameinuse(m)
    super
    $stderr.puts 'NICKNAME ALREADY INS USE ERRORRRRRRRRRRRRRRRRRRRRRRRRR'
    post NICK, 'another'# some server rejects multi-client connection
    sleep 3
  end
end

SimpleClient.new('irc.trpg.net', '6667',
  nick: 'onelirc',
  user: 'onelirc',
  real: 'onelirc'
).start