'use strict';

/*
 *+------------------------------------------------------------------------+
 *| Licensed Materials - Property of IBM
 *| IBM Cognos Products: BI 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([], function () {
	'use strict';

	/**
  *we could pass options for initialization
  *@constructor
  */

	var AjaxHelper = function AjaxHelper() {
		return {
			showAjaxServiceErrorMessage: function showAjaxServiceErrorMessage(dashboardApi, jqXHR) {
				var messages = '';
				if (jqXHR) {
					var responseJSON = jqXHR.responseJSON;
					if (responseJSON) {
						if (responseJSON.messages) {
							messages = jqXHR.responseJSON.messages.join('\n');
						} else if (responseJSON.cause) {
							try {
								var cause = JSON.parse(responseJSON.cause);
								if (cause.messages) {
									messages = cause.messages.join('\n');
								}
							} catch (e) {
								//if we get here, 'cause' is not a json object
								messages = responseJSON.cause;
							}
						}
					} else {
						messages = jqXHR.responseText;
					}
				}
				if (messages && messages.length > 0) {
					// RTC189248 - Don't show empty error messages!
					dashboardApi.showErrorMessage(messages, 'Error');
				}
			}
		};
	};

	return new AjaxHelper();
});
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