'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 Cognos Products: BI Dashboard
 *| (C) Copyright IBM Corp. 2020
 *|
 *| US Government Users Restricted Rights - Use, duplication or disclosure
 *| restricted by GSA ADP Schedule Contract with IBM Corp.
 *+------------------------------------------------------------------------+
 */

define(['underscore', '../../../lib/@waca/upgrades/UpgradeBase', './utils/WidgetUpgradeUtils'], function (_, UpgradeBase, WidgetUpgradeUtils) {

	var MULTI_MEASURE_SERIES = '_multiMeasuresSeries';

	var DatasetScopeMultiMeasure = function (_UpgradeBase) {
		_inherits(DatasetScopeMultiMeasure, _UpgradeBase);

		function DatasetScopeMultiMeasure() {
			_classCallCheck(this, DatasetScopeMultiMeasure);

			var _this = _possibleConstructorReturn(this, _UpgradeBase.call(this));

			_this.VERSION = 1802;
			return _this;
		}

		/**
   * Perform upgrade
   *
   * @param {object} spec - spec to perform upgrade on
   *
   * @return {Promise} Promise to be resolved when upgrade performed
   */


		DatasetScopeMultiMeasure.prototype.up = function up(spec) {
			var _this2 = this;

			if (!spec) {
				return Promise.resolve(spec);
			}

			if (!WidgetUpgradeUtils.specHasWidgets(spec)) {
				return Promise.resolve(spec);
			}

			_.each(spec.widgets, function (model) {
				if (WidgetUpgradeUtils.isLiveWidgetModel(model)) {
					_this2._removeSlotPointer(model);
					_this2._updateSlotmappingDataItem(model);
					_this2._updateDataViewDataItem(model);
				}
			});

			return Promise.resolve(spec);
		};

		// Downgrades are not available in CA


		DatasetScopeMultiMeasure.prototype.down = function down(spec) {
			return Promise.resolve(spec);
		};

		// New implementation can compute this anyway


		DatasetScopeMultiMeasure.prototype._removeSlotPointer = function _removeSlotPointer(model) {
			if (model.slotmapping && model.slotmapping.multiMeasureSlot) {
				delete model.slotmapping.multiMeasureSlot;
			}
		};

		// New implementation can have 1 multi-measure per dataset


		DatasetScopeMultiMeasure.prototype._updateSlotmappingDataItem = function _updateSlotmappingDataItem(model) {
			model.slotmapping && model.slotmapping.slots && model.slotmapping.slots.forEach(function (slot) {
				slot.dataItems && slot.dataItems.forEach(function (dataItem, index) {
					if (dataItem === MULTI_MEASURE_SERIES) {
						// all multimeasures prior to this upgrader belonged to the 'data' dataset
						slot.dataItems[index] = MULTI_MEASURE_SERIES + '_' + 'data';
					}
				});
			});
		};

		// New implementation can have 1 multi-measure per dataset


		DatasetScopeMultiMeasure.prototype._updateDataViewDataItem = function _updateDataViewDataItem(model) {
			if (model.data && !_.isEmpty(model.data.dataViews)) {
				// no multi-layer vis prior to this upgrader had multi-measure support
				model.data.dataViews.forEach(function (dataview) {
					dataview && dataview.dataItems && dataview.dataItems.forEach(function (dataItem) {
						if (dataItem.id === MULTI_MEASURE_SERIES) {
							// all multimeasures prior to this upgrader belonged to the 'data' dataset
							dataItem.id = MULTI_MEASURE_SERIES + '_data';
						}
					});
				});
			}
		};

		return DatasetScopeMultiMeasure;
	}(UpgradeBase);

	return new DatasetScopeMultiMeasure();
});
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