Angular custom service class using revealing module pattern in coffeescript

gistfile1.js

# See http://goo.gl/hPkgvm for a view of the generated source
do ->
  angular
    .module('blocks.logger')
    .factory('logger', logger)

  logger.$inject = ['$log']

  logger = ($log) ->
    error = (message, data, title) ->
      toastr.error(message, title)
      $log.error("Error: #{message}", data)

    info = (message, data, title) ->
      toastr.info(message, title)
      $log.info("Info: #{message}", data)

    success = (message, data, title) ->
      toastr.success(message, title)
      $log.success("Success: #{message}", data)

    warning = (message, data, title) ->
      toastr.warning(message, title)
      $log.warning("Warning: #{message}", data)

    showToasts: true
    error: error
    info: info
    success: success
    warning: warning
    log: $log.log