'use strict';

/**
 * Licensed Materials - Property of IBM
 * IBM Cognos Products: BI
 * (C) Copyright IBM Corp. 2016, 2018
 * US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 */

define(['jquery'], function ($) {
	'use strict';

	var _singletonInstance = null;
	var MenuActionHelper = function MenuActionHelper() {};

	/**
  * options.dashboardApi {object} - the dashboard API
  * options.id {string} - the ID of the data source
  * options.type {string} - the Type of the data source
  * options.event {obj} - The mouse event that triggered the menu to be opened
  * options.menuId {string} - The menu id to open
  **/
	MenuActionHelper.prototype.getActionPayload = function (options) {
		// We only do a CM query for dataSet2.
		// TODO the SourceModel is already doing a CM query, should just you its information
		if (!options || options.type === 'dataSet2' && !options.id || !options.event) {
			return Promise.resolve(true);
		}

		return this._getCMInfo(options).then(function (cmProperties) {
			var position = {};
			var evt = options.event;
			if (evt.pageX === undefined || evt.gesture && (evt.gesture.center === undefined || evt.gesture.center.pageX === undefined)) {
				position = $(evt.target).offset();
			} else {
				position.left = evt.pageX || evt.gesture.center.pageX;
				position.top = evt.pageY || evt.gesture.center.pageY;
			}

			var actionPayload = {
				position: {
					pageX: position.left,
					pageY: position.top
				},
				menuId: options.menuId,
				activeObject: {
					aSelectedContext: cmProperties
				}
			};

			return actionPayload;
		});
	};

	MenuActionHelper.prototype._getCMInfo = function (options) {
		if (options.type === 'dataSet2') {
			return options.dashboardApi.getGlassSvc('.Content').then(function (contentSvc) {
				return contentSvc.getBaseObjectsURL() + '/' + options.id;
			}).then(function (url) {
				return options.dashboardApi.getGlassCoreSvc('.Ajax').ajax({
					url: url,
					type: 'GET',
					'headers': {
						'Content-Type': 'application/vnd.ibm.bi.platform.execution+json; charset=UTF-8',
						'Accept': 'application/json'
					},
					'datatype': 'json',
					'data': {
						'fields': 'permissions,defaultName'
					}
				});
			}).then(function (result) {
				var response = result.data;
				if (response && response.data) {
					return response.data;
				} else {
					throw response;
				}
			});
		} else {
			return Promise.resolve({});
		}
	};

	var _static = {
		getInstance: function getInstance() {
			if (!_singletonInstance) {
				_singletonInstance = new MenuActionHelper();
			}

			return _singletonInstance;
		}
	};

	return _static.getInstance();
});
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