Hipchat/Play/Hubot "who's online" awesomeness

online.rb

#hipchat/play/hubot who's online awesomeness
require 'sinatra'
require 'hipchat-api'

# Public: Return a string of users in hipchat
#
# Examples
#
#   /online
#   # => 'ninetwentyfour,kkasch,lkkadiri,p5150j'
#
# Returns the user list string
get '/online' do
  #connect to the chat room you want to monitor for people
  hipchat_api = HipChat::API.new('HIPCHAT_API_KEY')
  room = hipchat_api.rooms_show('HIPCHAT_ROOM_ID')
  
  #hash of the names in hipchat and their corresponding office_string in play
  names = Hash.new
  names["Travis Berry"] = "ninetwentyfour"
  names["Keith Kacsh"] = "kkasch"
  names["Leela Krishna"] = "lkkadiri"
  names["Patrick Ortell"] = "p5150j"
  names["Jason K"] = "hooptiej"

  #loop over each current user in the room and add their office_string to a string
  str=""
  room["room"]["participants"].each do |username|
    if names.has_key? username["name"]
      str<<names[username["name"]]+","
    end
  end
  
  str = str[0...-1] #strip the last comma
  
  #return the string
  "#{str}"
end