amatriain/openreader

########################################################
# AngularJS service to refresh feeds
########################################################

angular.module('feedbunch').service 'refreshFeedSvc',
['$rootScope', 'csrfTokenSvc', 'timerFlagSvc', 'entriesPaginationSvc', 'startPageSvc', 'currentFeedSvc',
($rootScope, csrfTokenSvc, timerFlagSvc, entriesPaginationSvc, startPageSvc, currentFeedSvc)->

  # CSRF token for PUT
  token = csrfTokenSvc.get_token()

  # Web worker to request a feed refresh in a different thread.
  worker = new Worker '<%= asset_path 'workers/refresh_feed_worker' %>'
  worker.onmessage = (e) ->
    if e.data.status == 200
      startPageSvc.show_start_page()
    else if e.data.status == 401 || e.data.status == 422
      $window.location.href = '/login'
    else
      startPageSvc.show_start_page()
      timerFlagSvc.start 'error_refreshing_feed'
    $rootScope.$digest()

  service =

    #--------------------------------------------
    # Refresh a feed and load its unread entries
    #--------------------------------------------
    refresh_feed: ->
      entriesPaginationSvc.reset_entries()
      entriesPaginationSvc.set_busy true
      worker.postMessage {token: token, feed_id: currentFeedSvc.get().id}

  return service
]