'use strict';

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

/**
 * Licensed Materials - Property of IBM
 * IBM Watson Analytics (C) Copyright IBM Corp. 2019
 * US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 */
define(['jquery', 'underscore'], function ($, _) {

	var SDK_REQUIRE_CONTEXT = 'Dashboard.VidaSdkUtil';

	// eslint-disable-next-line no-undef
	var rjs = requirejs;

	/**
  * Deletes the new requirejs context and cleans up any new <script/> tags Require created
  */
	var cleanupRequireContext = function cleanupRequireContext() {
		delete rjs.s.contexts[SDK_REQUIRE_CONTEXT];
		$('[data-requirecontext="' + SDK_REQUIRE_CONTEXT + '"]').remove();
	};

	return function () {
		function VidaSdkUtil() {
			_classCallCheck(this, VidaSdkUtil);
		}

		VidaSdkUtil.isSDKActive = function isSDKActive(dashboardApi) {
			var visDefinitions = dashboardApi.getFeature('VisDefinitions');
			var visPreview = visDefinitions.getById('visualizationPreview');
			var visualizationPreviewHasBeenLoaded = visPreview && !visPreview.getState().getError();
			var promise = void 0;
			if (visualizationPreviewHasBeenLoaded) {
				// The SDK bundle is currently loaded... but the server may not be running any more.
				// This code reloads the manifest.xml to verify the servier is active... or not.
				promise = new Promise(function (resolve, reject) {
					require(['com/ibm/vida/control/vida'], function (vida) {

						// We need a fresh requirejs context here...
						// so we don't go undefining things in the global scope
						var globalRequireConifg = JSON.parse(JSON.stringify(rjs.s.contexts._.config));
						var minimalRequireConfig = {
							context: SDK_REQUIRE_CONTEXT,
							baseUrl: globalRequireConifg.baseUrl,
							urlArgs: 'v=' + Date.now(),
							paths: _.pick(globalRequireConifg.paths, 'text', vida.sdk.bundleLocation)
						};
						var req = require.config(minimalRequireConfig);
						var manifestPath = 'text!' + vida.sdk.bundleLocation + '/manifest.xml';

						// Require the manifest, and use resolve/reject as success/failure handlers
						req([manifestPath], function () {
							cleanupRequireContext();
							resolve();
						}, function (err) {
							cleanupRequireContext();
							reject(err);
						});
					}, reject);
				});
			} else {
				// The bundle is currently not loaded, attempt to load it.
				promise = Promise.race([
				// Note: This will fail to resolve on IE due to a Mixed/Content error, unless  the user has accepted
				// the browser warning and refreshed the page...
				visDefinitions.loadById('visualizationPreview'),

				// Lets give IE 15 seconds?
				new Promise(function (resolve, reject) {
					setTimeout(function () {
						reject(new Error('Failed to load test visualization'));
					}, 15000);
				})]);
			}

			return promise.then(function () {
				return true;
			}).catch(function () {
				return false;
			});
		};

		return VidaSdkUtil;
	}();
});
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