simple.rb

require 'thread'
require 'rubygems'
require 'net/irc'

# undo weirdness in the net/irc library, so that we get NoMethodError when we
# call a method that doesn't exist
class Net::IRC::Client
  remove_method :method_missing if defined? method_missing
end

# Exmple irc bot to notify you of progress of a long running task. It can be
# silenced by sending it the message "quit"
# 
#   bot = Net::IRC::Simple.new("foobar", 6667,
#     :nick => "foobartest",
#     :user => "foobartest",
#     :real => "foobartest")
#   
#   bot.join("#bot_test")
#   
#   bot.on_message do |m|
#     privmsg = Net::IRC::Simple::PRIVMSG
#     if m.command == privmsg && m[0] == bot.opts.user && m[1] == "quit"
#       bot.quit("bye")
#     end
#   end
#   
#   (1..100).each do |i|
#     sleep 1
#     bot.message("#bot_test", "#{i}% done") unless bot.finished?
#   end
#   
#   bot.quit("done")
# 
class Net::IRC::Simple < Net::IRC::Client
  
  def initialize(*args)
    super
    @main = Thread.current
    @thread = Thread.new {start}
    @thread.abort_on_exception = true
    Thread.stop
  end
  
  def join(room)
    post JOIN, room
  end
  
  def message(room, string)
    post PRIVMSG, room, string
  end
  
  def quit(string="")
    post QUIT, string
    finish
  end
  
  def started?
    @started
  end
  
  def finished?
    @socket.closed?
  end
  
  def on_message(message=nil, &block)
    if message
      super(message)
      @callback.call(message) if @callback
    else
      @callback = block
    end
  end
  
  def wait
    @thread.join
  end
  
  protected
  def on_rpl_welcome(m)
    @main.run
    @started = true
  end
  
end