'use strict';

/**
 * Licensed Materials - Property of IBM
 * IBM Cognos Products: BI Cloud (C) Copyright IBM Corp. 2014, 2019
 * US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 */
define(['../../lib/@waca/dashboard-common/dist/core/Collection', './VisProperty', 'underscore'], function (Collection, VisProperty, _) {
	'use strict';

	/**
  * A collection of properties used by a visualization
  */

	var VisPropertyCollection = null;
	VisPropertyCollection = Collection.extend({

		// The class of objects that this collection manages
		modelClass: VisProperty,

		// Hard coded list of multilingual visProperties.  These properties came from VIPRConfig.js
		localizedPropIds: ['itemAxis.title', 'valueAxis.title', 'valueAxis.column.title', 'color.title', 'series.title', 'categories.title', 'values.title', 'size.title', 'locationColor.title', 'pointSize.title', 'pointColor.title', 'pointcolor.title', 'latlongSize.title', 'latlongColor.title', 'valueAxis.line.title', 'baseValueLabel', 'targetValueLabel'],

		init: function init(models, options) {
			// Each VisProperty is given a reference to the collection so that it can access the visModel. This is for access to the
			// theme definitions.
			this.modelConstructorOptions = {
				collection: this
			};

			options = options || {};
			// Access to the visModel for theme definitions
			this.visModel = options.visModel;

			VisPropertyCollection.inherited('init', this, arguments);
		},

		/**
   * Silently apply a set of defaults to the property collection, preserving any overrides.
   *
   * @param defaults	The new set of defaults to apply
   */
		applyDefaults: function applyDefaults(defaults) {
			var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

			var currentProps = this.toJSON();
			this.reset(defaults, _.extend(options, { silent: true }));
			this.set(currentProps, _.extend(options, { remove: false, merge: true, silent: true }));
		},

		/**
   * @param propertySet - A set of properties as stored in a change:properties event (and the widget model),
   * @returns an object that contains one or more of the data properties that are defined in this set.
   */
		_getDataPropertiesAndValues: function _getDataPropertiesAndValues(propertySet) {
			var dataProperties = {};
			var maintainAxisScales = _.find(propertySet, function (property) {
				return property.id === 'maintainAxisScales';
			});
			dataProperties.maintainAxisScales = maintainAxisScales;
			return dataProperties;
		},

		/**
   * Override of Collection.toJSON to only serialize the properties that have an override
   */
		toJSON: function toJSON() {
			// only serialize the properties that have a value
			var definedProps = this.filter(function (visProp) {
				return visProp.value !== undefined;
			});

			definedProps = definedProps.map(function (entry) {
				if (entry.toJSON) {
					return entry.toJSON();
				}
				return entry;
			});

			return definedProps;
		},

		/**
   * Given a property name, will return information about it's multilingualAttribute object
   */
		getMultilingualAttribute: function getMultilingualAttribute(propertyName) {
			if (this.localizedPropIds.indexOf(propertyName) === -1) {
				return null;
			}

			var propertyModel = this.get(propertyName);
			if (!propertyModel) {
				return null;
			}

			return propertyModel.getMultilingualAttribute('value');
		},

		/**
   * Returns all the multilingual visProperties
   */
		getMultilingualAttributes: function getMultilingualAttributes() {
			var _this = this;

			var multilingualAttributes = [];
			this.localizedPropIds.forEach(function (propId) {
				var multilingualAttribute = _this.getMultilingualAttribute(propId);
				if (multilingualAttribute) {
					multilingualAttributes.push(multilingualAttribute);
				}
			});

			return multilingualAttributes;
		},

		/**
   * If there has been a change to any 'data oriented property' (one where a change means new data is needed), return true.
   * Eg:	if maintainAxisScales was not set before and now it is, refresh data.
   * AND:  if maintainAxisScales was set before and now its not, refresh data.
   * @propertySet - the latest property set that may or may not include a data oriented property
   * @previousPropertySet - the previous property set that may or may not include a data oriented property
   * @returns true if EITHER the current propertySet or previousPropertySet includes a property that would need data refreshed on a change.
   */
		_refreshDataNeeded: function _refreshDataNeeded(propName) {
			return propName === 'maintainAxisScales';
		},

		/**
   * Override the onModelEvent to introduce dataRefresh. 
   */
		_onModelEvent: function _onModelEvent(event) {
			event.dataRefresh = this._refreshDataNeeded(event.model.id);
			VisPropertyCollection.inherited('_onModelEvent', this, arguments);
		}

	});

	return VisPropertyCollection;
});
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