define [
  'underscore',
  'backbone',
  'globals',
  'cs!models/user'
], (_, Backbone, globals, UserModel) ->

  # TODO: this class should actually store UserModel's, for now it is only trigerring events
  UsersCollection = Backbone.Collection.extend
    model: UserModel

    initialize: ->

    # TODO: not the best solution, but can't do it on initialize because globals.connection doesn't
    #       exist yet
    start: ->
      globals.connection.bind "connection:connected",
        @_registerEvents, @

    _registerEvents: ->

      globals.events.on "connection:user_list_change", (users) =>
        globals.events.trigger("users:user_list_change", users)

      globals.events.on "connection:load_users", (users) =>
        globals.events.trigger("users:load_users", users)

      globals.events.on "connection:user_join", (userid, username) =>
        globals.events.trigger("users:user_join", userid, username)

      globals.events.on "connection:user_leave", (userid) =>
        globals.events.trigger("users:user_leave", userid)

      globals.events.on "connection:setPresenter", (userid) =>
        globals.events.trigger("users:setPresenter", userid)

  UsersCollection