import Ember from 'ember';
              
              const { Mixin, computed } = Ember;
              
              /**
               * Mixin that adds support for sorting in a table.
               *
               * @class TableSortingMixin
               * @extends Ember.Mixin
               */
              export default Mixin.create({
                /**
                 * Property that is used for sorting the table.
                 *
                 * @property sortProperty
                 * @type String
                 * @default null
                 * @public
                 */
                sortProperty: null,
              
                /**
                 * Sort direction ('asc' or 'desc).
                 *
                 * @property direction
                 * @type String
                 * @default 'asc'
                 * @public
                 */
                direction: 'asc',
              
                /**
                 * Determines if the table is sorted or not.
                 *
                 * @property hasSorting
                 * @type Boolean
                 * @public
                 */
                hasSorting: computed('sortProperty', 'direction', function() {
                  if (this.get('sortProperty') && this.get('direction')) {
                    return true;
                  }
              
                  return false;
                }),
              
                /**
                 * Configures table sorting for specified `column` and `direction`.
                 *
                 * @method sortColumn
                 * @param {String} property Property name for the column to be sorted by.
                 * @param {String} direction Sort direction ('asc' or 'desc).
                 * @public
                 */
                sortColumn(property, direction) {
                  this.set('sortProperty', property);
                  this.set('direction', direction);
                },
              
                /**
                 * Clear table sorting previously defined with {{#crossLink TableSorting#sortColumn:method}}sortColumn{{/crossLink}}.
                 *
                 * @method removeSorting
                 * @public
                 */
                removeSorting() {
                  this.set('sortProperty', null);
                  this.set('direction', 'asc');
                }
              });