'use strict';

/*
 *+------------------------------------------------------------------------+
 *| Licensed Materials - Property of IBM
 *| IBM Cognos Products: Dashboard
 *| (C) Copyright IBM Corp. 2018
 *|
 *| US Government Users Restricted Rights - Use, duplication or disclosure
 *| restricted by GSA ADP Schedule Contract with IBM Corp.
 *+------------------------------------------------------------------------+
 */
define(['./OpenActionHandler', '../../../app/util/ErrorUtils'], function (BaseClass, Utils) {

	var ActionHandler = BaseClass.extend({

		/**
         * This class is a last effort to open a dashboard/story that has no tags. We go to the server to get the spec and look at it.
         * Once all the specs are updated on the server (trough a CM upgrade) we can remove this file.
         */

		_getTargetPerspective: function _getTargetPerspective(id, context) {
			return this._getSpec(id, context).then(function (spec) {
				return spec.timeline ? 'story' : 'dashboard';
			});
		},

		_hasValidTags: function _hasValidTags(item) {
			// if we get here we should have no tags. If we do then it's not a type we understand
			return !item.tags || !item.tags.length;
		},

		/**
   * This function is only used to determine if it is a dashboard or story
   * In case of an error fetching the spec, we will always resolve so that we default to a dashboard.
   * Error cases will be handled later when the dashboard is about to open.
   */
		_getSpec: function _getSpec(id, context) {
			return context.glassContext.getSvc('.Content').then(function (contentSvc) {
				return new Promise(function (resolve, reject) {
					var itemURL = contentSvc.getBaseObjectsURL() + '/' + id;
					var options = {
						dataType: 'json',
						data: {
							'fields': 'specification'
						},
						MRUInfo: {}
					};
					contentSvc.get(itemURL, options).then(function (response) {
						var specAsString = response.data && response.data.length && response.data[0].specification;
						if (specAsString) {
							try {
								resolve(JSON.parse(specAsString));
							} catch (err) {
								reject(err);
							}
						} else {
							resolve(contentSvc.get(itemURL + '/content'));
						}
					}).fail(function (deferred, request) {
						Utils.showError(context.glassContext, request, id);
						resolve({});
					});
				});
			});
		}
	});
	return ActionHandler;
});
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