/**
 * Helper service for working with the registry's container. Only works in enterprise.
 */
angular.module('quay-config')
  .factory('ContainerService', ['ApiService', '$timeout', 'Restangular',
    function(ApiService, $timeout, Restangular) {
      var containerService = {};
      containerService.restartContainer = function(callback) {
        ApiService.scShutdownContainer(null, null).then(function(resp) {
          $timeout(callback, 2000);
        }, ApiService.errorDisplay('Cannot restart container. Please report this to support.'))
      };

      containerService.scheduleStatusCheck = function(callback, opt_config) {
        $timeout(function() {
          containerService.checkStatus(callback, opt_config);
        }, 2000);
      };

      containerService.checkStatus = function(callback, opt_config) {
        var errorHandler = function(resp) {
          if (resp.status == 404 || resp.status == 502 || resp.status == -1) {
            // Container has not yet come back up, so we schedule another check.
            containerService.scheduleStatusCheck(callback, opt_config);
            return;
          }

          return ApiService.errorDisplay('Cannot load status. Please report this to support')(resp);
        };

        // If config is specified, override the API base URL from this point onward.
        // TODO(jschorr): Find a better way than this. This is safe, since this will only be called
        // for a restart, but it is still ugly.
        if (opt_config && opt_config['SERVER_HOSTNAME']) {
          var scheme = opt_config['PREFERRED_URL_SCHEME'] || 'http';
          var baseUrl = scheme + '://' + opt_config['SERVER_HOSTNAME'] + '/api/v1/';
          Restangular.setBaseUrl(baseUrl);
        }

        ApiService.scRegistryStatus(null, null, /* background */true)
          .then(callback, errorHandler);
      };

      return containerService;
    }]);