/**
 * @license Highcharts JS v6.1.0 (2018-04-13)
 * Plugin for displaying a message when there is no data visible in chart.
 *
 * (c) 2010-2017 Highsoft AS
 * Author: Oystein Moseng
 *
 * License: www.highcharts.com/license
 */
'use strict';
(function (factory) {
	if (typeof module === 'object' && module.exports) {
		module.exports = factory;
	} else {
		factory(Highcharts);
	}
}(function (Highcharts) {
	(function (H) {
		/**
		 * Plugin for displaying a message when there is no data visible in chart.
		 *
		 * (c) 2010-2017 Highsoft AS
		 * Author: Oystein Moseng
		 *
		 * License: www.highcharts.com/license
		 */

		var seriesTypes = H.seriesTypes,
		    chartPrototype = H.Chart.prototype,
		    defaultOptions = H.getOptions(),
		    extend = H.extend,
		    each = H.each;

		// Add language option
		extend(defaultOptions.lang, {
		    /**
		     * The text to display when the chart contains no data. Requires the
		     * no-data module, see [noData](#noData).
		     *
		     * @type {String}
		     * @default No data to display
		     * @since 3.0.8
		     * @product highcharts highstock
		     * @sample highcharts/no-data-to-display/no-data-line
		     *         No-data text
		     * @apioption lang.noData
		     */
		    noData: 'No data to display'
		});

		// Add default display options for message
		/**
		 * Options for displaying a message like "No data to display".
		 * This feature requires the file no-data-to-display.js to be loaded in the
		 * page. The actual text to display is set in the lang.noData option.
		 * @type {Object}
		 *
		 * @sample highcharts/no-data-to-display/no-data-line
		 *         Line chart with no-data module
		 * @sample highcharts/no-data-to-display/no-data-pie
		 *         Pie chart with no-data module
		 * @optionparent noData
		 */
		defaultOptions.noData = {

		    /**
		     * An object of additional SVG attributes for the no-data label.
		     *
		     * @type {Object}
		     * @since 3.0.8
		     * @product highcharts highstock
		     * @apioption noData.attr
		     */

		    /**
		     * Whether to insert the label as HTML, or as pseudo-HTML rendered with
		     * SVG.
		     *
		     * @type {Boolean}
		     * @default false
		     * @since 4.1.10
		     * @product highcharts highstock
		     * @apioption noData.useHTML
		     */

		    /**
		     * The position of the no-data label, relative to the plot area.
		     *
		     * @type {Object}
		     * @default { "x": 0, "y": 0, "align": "center", "verticalAlign": "middle" }
		     * @since 3.0.8
		     */
		    position: {

		        /**
		         * Horizontal offset of the label, in pixels.
		         *
		         * @type {Number}
		         * @default 0
		         * @product highcharts highstock
		         */
		        x: 0,

		        /**
		         * Vertical offset of the label, in pixels.
		         *
		         * @type {Number}
		         * @default 0
		         * @product highcharts highstock
		         */
		        y: 0,

		        /**
		         * Horizontal alignment of the label.
		         *
		         * @validvalue ["left", "center", "right"]
		         * @type {String}
		         * @default center
		         */
		        align: 'center',

		        /**
		         * Vertical alignment of the label.
		         *
		         * @validvalue ["top", "middle", "bottom"]
		         * @type {String}
		         * @default middle
		         * @product highcharts highstock
		         */
		        verticalAlign: 'middle'
		    }
		};


		// Presentational
		/**
		 * CSS styles for the no-data label.
		 *
		 * @sample highcharts/no-data-to-display/no-data-line
		 *         Styled no-data text
		 * @optionparent noData.style
		 */
		defaultOptions.noData.style = {
		    fontWeight: 'bold',
		    fontSize: '12px',
		    color: '#666666'
		};



		// Define hasData function for non-cartesian seris. Returns true if the series
		// has points at all.
		each([
		    'bubble',
		    'gauge',
		    'heatmap',
		    'pie',
		    'sankey',
		    'treemap',
		    'waterfall'
		], function (type) {
		    if (seriesTypes[type]) {
		        seriesTypes[type].prototype.hasData = function () {
		            return !!this.points.length; // != 0
		        };
		    }
		});

		/**
		 * Define hasData functions for series. These return true if there are data
		 * points on this series within the plot area.
		 */
		H.Series.prototype.hasData = function () {
		    return (
		        this.visible &&
		        this.dataMax !== undefined &&
		        this.dataMin !== undefined // #3703
		    );
		};

		/**
		 * Display a no-data message.
		 *
		 * @param {String} str An optional message to show in place of the default one
		 */
		chartPrototype.showNoData = function (str) {
		    var chart = this,
		        options = chart.options,
		        text = str || (options && options.lang.noData),
		        noDataOptions = options && options.noData;

		    if (!chart.noDataLabel && chart.renderer) {
		        chart.noDataLabel = chart.renderer
		            .label(
		                text,
		                0,
		                0,
		                null,
		                null,
		                null,
		                noDataOptions.useHTML,
		                null,
		                'no-data'
		            );

        
		        chart.noDataLabel
		            .attr(noDataOptions.attr)
		            .css(noDataOptions.style);
        

		        chart.noDataLabel.add();

		        chart.noDataLabel.align(
		            extend(chart.noDataLabel.getBBox(), noDataOptions.position),
		            false,
		            'plotBox'
		        );
		    }
		};

		/**
		 * Hide no-data message
		 */
		chartPrototype.hideNoData = function () {
		    var chart = this;
		    if (chart.noDataLabel) {
		        chart.noDataLabel = chart.noDataLabel.destroy();
		    }
		};

		/**
		 * Returns true if there are data points within the plot area now
		 */
		chartPrototype.hasData = function () {
		    var chart = this,
		        series = chart.series || [],
		        i = series.length;

		    while (i--) {
		        if (series[i].hasData() && !series[i].options.isInternal) {
		            return true;
		        }
		    }

		    return chart.loadingShown; // #4588
		};

		/**
		 * Add event listener to handle automatic show or hide no-data message
		 */
		H.addEvent(H.Chart, 'render', function handleNoData() {
		    if (this.hasData()) {
		        this.hideNoData();
		    } else {
		        this.showNoData();
		    }
		});

	}(Highcharts));
}));