lighter

#!/usr/bin/env ruby

#############################################################
# Lighter -- Campfire from the command line                 #    
#                                                           #
# Installation:                                             #
#  gem install tinder                                       #
#  chmod +x lighter                                         #
#                                                           #
# Usage:                                                    #
#  ./lighter <subdomain> <user> <room>                      #
#                                                           #
# Example:                                                  #
#  ./lighter brightbit ericboehs "Awesome People Room"      #
#                                                           #
# Commands:                                                 #
#  /help       shows list of commands                       #
#  /leave      parts the room (no /join yet)                #
#  /saveconfig saves configuration in ~/.lighter            #
#  /exit       quits lighter                                #
#                                                           #
#############################################################

require "tinder"
require "readline"
require "highline/import"
require "yaml"

class Lighter
  def initialize
    unless ARGV.size == 3
      files = ['/etc/lighter.yml', ENV['HOME'] + '/.lighter/lighter.yml', './lighter.yml']
      files.each { |f| @file = f if File::exists?(f) }

      @config = open(@file) { |f| YAML.load(f) } if @file
      abort "usage: lighter <subdomain> <user> <room name>" unless @config

      @subdomain = @config['subdomain']
      @user = @config['user']
      @pass = @config['pass']
      @room = @config['room']
    else
      @subdomain, @user, @room = ARGV
      @pass = ask("Password: ") { |q| q.echo = false }
    end
    
    @campfire = Tinder::Campfire.new  @subdomain, :username => @user, :password => @pass
    @room = @campfire.find_room_by_name(@room)
    
    @continue = true
    @sleep = 1
  end
  
  def start
    trap("INT") { input }
    @room.join
    puts "Now in room, CTRL+C to input, input /help for help"
    process while @continue
  end
  
  def stop(leave=false)
    @continue = false
    @room.leave if leave
    raise "exit"
  end
  
  def input
    print "\b\b"
    cmd = Readline::readline("> ")
    return if cmd.empty?
    Readline::HISTORY.push(cmd)
      
    if cmd[0] == ?/
      case cmd
      when "/exit"
        stop
      when "/leave"
        stop(true)
      when "/help"
        puts "commands: exit, leave, saveconfig"
      when "/saveconfig"
        file = "#{ENV['HOME']}/.lighter/"
        Dir::mkdir(file) unless File::exists?(file)
        config = {
          "subdomain"  => @subdomain,
          "user"  => @user,
          "pass"  => @pass,
          "room" => @room.name
        }
        open("#{ENV['HOME']}/.lighter/lighter.yml", 'w') {|f| YAML.dump(config, f)}

        puts "Configuration saved to #{ENV['HOME']}/.lighter/lighter.yml."
        puts "You may start lighter without any arguments now."
      end
    else
      @room.speak cmd
    end
  end
  
  private
    def process
      @room.listen do |message|
        puts message[:user][:name] + ": " + message[:body]
      end
    rescue Timeout::Error
      puts "Timeout while listening: #{$!}, rejoining room ..."
      @room.join(true)
    rescue "exit"
      puts "Exiting..."
    rescue Exception => e
      unless e.message == "exit"
        puts "Error while listening: #{$!}"
        puts $@
      end
    end
end

Lighter.new.start