analytics/webcontent/bi/js/dashboard-analytics/visualizations/vipr/data/VIPRContDataItem.js

'use strict';

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

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

/**
 * Licensed Materials - Property of IBM
 * IBM Business Analytics (C) Copyright IBM Corp. 2019, 2020
 * US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 */
define(['underscore', './VIPRDecoratable', './VIPRItemClass', './VIPRFormatter'], function (_, VIPRDecoratable, VIPRItemClass, VIPRFormatter) {

	// implements IContDataItem
	var VIPRContDataItem = function (_VIPRDecoratable) {
		_inherits(VIPRContDataItem, _VIPRDecoratable);

		function VIPRContDataItem(resultItem, context, content) {
			_classCallCheck(this, VIPRContDataItem);

			var _this = _possibleConstructorReturn(this, _VIPRDecoratable.apply(this, arguments));

			_this.context = context;
			_this.queryResult = context && context.queryResult;
			_this.content = content;

			// Ordinal slots normally does not take multiple dataitems (ie. stacked)
			// even for multi-measures case (ie. bar, column) the multiple ordinal dataitems are merged in to a single ordinal measure
			// and each measures are separated as series.
			// So at the end, from the VIPRData perspective a numeric dataitem (aka slot), has only one measure.
			_this.formatter = new VIPRFormatter(_this.context.index.dataitem, 0, _this.context);
			//getTupleHeaders() return the array of itemClass, each Item Class contains an array of Tuple headers
			_this.itemClass = new VIPRItemClass(resultItem.getDataItemList()[0], _this.context);
			_this.domain = _this._createDomain(); // Min Max Data Item domain
			return _this;
		}

		/*
   * Format data from min/max query
   */


		VIPRContDataItem.prototype._getMinMaxData = function _getMinMaxData(minmaxResult) {
			var resultItems = minmaxResult.getResultItemList();
			var data = [];
			for (var index = 0; index + 1 < resultItems.length; index += 2) {
				var resultDataItem = resultItems[index];
				var dataItem = resultDataItem.getDataItemList()[0];
				var min = minmaxResult.getValue(0, index).value;
				var max = minmaxResult.getValue(0, index + 1).value;
				data.push({
					min: min,
					max: max,
					columnId: dataItem.getColumnId(),
					aggregation: dataItem.getAggregation(),
					explicit: this._explicitMinMax(min, max)
				});
			}
			return data;
		};

		VIPRContDataItem.prototype._explicitMinMax = function _explicitMinMax(min, max) {
			//TODO: Revisit the domain.explicit setting post R7
			//refer: EXPLORE-2277 EXPLORE-2692
			var visualization = this.content && this.content.getFeature('Visualization');
			return visualization && visualization.getType() === 'Tiledmap' && min !== undefined && min !== null && max !== undefined && max !== null;
		};

		/*
   * Create a domain incorporating min/max from all measures
   */


		VIPRContDataItem.prototype._createMultiMeasureDomain = function _createMultiMeasureDomain(minmaxResult) {
			var overAllMin = void 0;
			var overAllMax = void 0;
			var overAllExplicit = void 0;
			var minmaxData = this._getMinMaxData(minmaxResult);
			minmaxData.forEach(function (_ref) {
				var min = _ref.min,
				    max = _ref.max,
				    explicit = _ref.explicit;

				overAllMin = overAllMin !== undefined ? Math.min(overAllMin, min) : min;
				overAllMax = overAllMax !== undefined ? Math.max(overAllMax, max) : max;
				overAllExplicit = explicit;
			});

			return {
				min: overAllMin,
				max: overAllMax,
				explicit: overAllExplicit
			};
		};

		/*
   * Create a domain only incorporating min/max for own data item
   */


		VIPRContDataItem.prototype._createNonMultiMeasureDomain = function _createNonMultiMeasureDomain(minmaxResult) {
			var minmaxData = this._getMinMaxData(minmaxResult);

			var columnId = this.itemClass.dataItem.getColumnId();
			var aggregation = this.itemClass.dataItem.getAggregation();

			var minmax = minmaxData.find(function (minmax) {
				return minmax.columnId === columnId && minmax.aggregation === aggregation;
			});

			if (minmax) {
				return {
					min: minmax.min,
					max: minmax.max,
					explicit: minmax.explicit
				};
			} else {
				return null;
			}
		};

		/**
   * @returns the domain (min/max) for the data item
   */


		VIPRContDataItem.prototype._createDomain = function _createDomain() {
			var domain = null;

			var minmaxResult = this.context.minmaxResult;
			if (minmaxResult) {
				if (this.itemClass.getUniqueName() === '_multiMeasuresValue') {
					domain = this._createMultiMeasureDomain(minmaxResult);
				} else {
					domain = this._createNonMultiMeasureDomain(minmaxResult);
				}
			}
			return domain;
		};

		VIPRContDataItem.prototype.getUniqueName = function getUniqueName() {
			return this.itemClass.getUniqueName();
		};

		VIPRContDataItem.prototype.getCaption = function getCaption() {
			return this.itemClass.getCaption();
		};

		VIPRContDataItem.prototype.getType = function getType() {
			return 'cont';
		};

		VIPRContDataItem.prototype.getDomain = function getDomain() /*aggregation TODO for stacked charts*/{
			return this.domain;
		};

		VIPRContDataItem.prototype.getFormatter = function getFormatter() {
			return this.formatter;
		};

		VIPRContDataItem.prototype.getItemClass = function getItemClass() {
			return this.itemClass;
		};

		return VIPRContDataItem;
	}(VIPRDecoratable);

	return VIPRContDataItem;
});
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