analytics/webcontent/bi/js/storytelling/model/EpisodeActs.js

'use strict';

/**
 * Licensed Materials - Property of IBM
 * IBM Cognos Products: BI
 * (C) Copyright IBM Corp. 2017
 * US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 */

define(['gemini/lib/@waca/dashboard-common/dist/core/Collection', './EpisodeActEntry'], function (Collection, EpisodeActEntry) {

	var EpisodeActs;
	EpisodeActs = Collection.extend({

		modelClass: EpisodeActEntry,

		init: function init() {
			EpisodeActs.inherited('init', this, arguments);
		},
		/*
  * A highlight payload is an array of columns.
  * This method updates the array to add or remove columns based on the exemplar provided
  *
  * Columns in payload and not in blankPayloadExemplar are removed
  * Columns in payloadEntryExemplar and not in paload are added.
  *
  * @param {Object} blankPayloadExemplar blank in the sense that it contains the default 'includes all' highlight
  *	{
  *		columnId: id of the column
  *		// other properties we should not look at here. like values
  *	}
  */

		updateHighlightPayloadColumns: function updateHighlightPayloadColumns(blankPayloadExemplar, options) {
			options = options || {};

			var values = [];
			var prevValues = [];

			this.filter(function (act) {
				return act.action === 'highlight';
			}).forEach(function (act) {
				// copy the array so that we can do a correct undo/redo operation later.
				// I.e we only change the copy. 
				var payloadCopy = act.payload.slice();

				var containsColumn = function containsColumn(array, columnId) {
					return array.find(function (entry) {
						return entry.columnId === columnId;
					});
				};

				// if it's in 'new' and not in 'existing' it needs to be added.
				blankPayloadExemplar.forEach(function (item) {
					if (!containsColumn(payloadCopy, item.columnId)) {
						// add a deep copy of the item since we might be adding it to multiple highlights.
						var itemCopy = JSON.parse(JSON.stringify(item));
						payloadCopy.push(itemCopy);
					}
				});
				// if it's in 'existing' and not in 'new' it needs to be removed.
				payloadCopy = payloadCopy.filter(function (item) {
					return containsColumn(blankPayloadExemplar, item.columnId);
				});

				values.push({
					id: act.id,
					payload: payloadCopy
				});
				prevValues.push({
					id: act.id,
					payload: act.payload
				});
			});
			//do we want a unique event?
			this._updateAndTriggerEvent('change:payload', values, prevValues, options);
		},
		_updateAndTriggerEvent: function _updateAndTriggerEvent(name, values, prevValues, options) {
			// values should be an array of sub models (sub as in id and some properties)
			this.set(values, { remove: false, merge: true, silent: true });
			var event = {
				name: name,
				eventName: name,
				collection: this,
				value: values,
				prevValue: prevValues,
				options: options,
				data: options.payloadData,
				sender: options.sender ? options.sender : this,
				senderContext: {
					applyFn: function (value, sender) {
						this.set(value, { remove: false, merge: true, silent: true });
						this.trigger(name, Object.assign({}, options, { sender: sender }));
					}.bind(this)
				}
			};
			this.trigger(name, event);
		}
	});
	return EpisodeActs;
});
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