'use strict';

/*
 *+------------------------------------------------------------------------+
 *| Licensed Materials - Property of IBM
 *| IBM Cognos Products: Dashboard
 *| (C) Copyright IBM Corp. 2018, 2020
 *|
 *| US Government Users Restricted Rights - Use, duplication or disclosure
 *| restricted by GSA ADP Schedule Contract with IBM Corp.
 *+------------------------------------------------------------------------+
 */
define(['./BaseTask', 'underscore'], function (BaseTask, _) {
	'use strict';

	var DataTask = BaseTask.extend({

		init: function init() {
			DataTask.inherited('init', this, arguments);
		},

		/**
   * Load the data and store in the data member of the renderContext.
   * @param renderContext - information collected by a particular call to render or reRender (such as the view, control, data etc).
   * @returns a promise resolving with the render context
   */
		process: function process(renderContext) {
			var _this = this;

			var view = this.getRenderState().getCurrentContextData('visView');

			if (!view || this._isStepComplete(renderContext, 'data')) {
				return Promise.resolve(renderContext);
			}

			//call the preData method
			view.preDataReady();

			return view.whenDataReady(renderContext).then(function (result) {
				return !_.isEmpty(result.data) ? Promise.all([result, _this._handleRenderContextForConditionalPalette(renderContext)]) : [result];
			}).then(function (_ref) {
				var result = _ref[0];

				if (result) {
					var data = result.data;

					view.setRenderingNewData(true);
					if (renderContext.extraInfo && renderContext.extraInfo.sameQueryValidateMode) {
						renderContext.sameQueryData = true;
						renderContext.extraInfo.queryRefresh = true;
					}
					_this._completeStep(renderContext, 'data', data);
				}
				return renderContext;
			}).catch(function (error) {
				if (!error || error.msg !== 'dwErrorStaleRequest') {
					var errorMessage = error ? error.msg : 'dwErrorRenderingVisualization';
					var errorParam = error ? error.param : null;
					_this.showError(errorMessage, errorParam);
				}
				throw error;
			});
		},

		_handleRenderContextForConditionalPalette: function _handleRenderContextForConditionalPalette(renderContext) {
			if (renderContext.refresh && renderContext.refresh.data) {
				// todo: the return below should be moved to a separate Feature. e.g. colorPatelleFeature
				return this.visAPI.initConditionalPalette(renderContext.extraInfo);
			} else if (renderContext.refreshAll) {
				// re-render with existing model can simply refresh the palette
				return this.visAPI.updateConditionalPalette();
			} else {
				return Promise.resolve();
			}
		}

	});

	return DataTask;
});
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