/**
 * @license Highstock JS v7.2.0 (2019-09-03)
 *
 * Indicator series type for Highstock
 *
 * (c) 2010-2019 Sebastian Bochan
 *
 * License: www.highcharts.com/license
 */
'use strict';
(function (factory) {
    if (typeof module === 'object' && module.exports) {
        factory['default'] = factory;
        module.exports = factory;
    } else if (typeof define === 'function' && define.amd) {
        define('highcharts/indicators/atr', ['highcharts', 'highcharts/modules/stock'], function (Highcharts) {
            factory(Highcharts);
            factory.Highcharts = Highcharts;
            return factory;
        });
    } else {
        factory(typeof Highcharts !== 'undefined' ? Highcharts : undefined);
    }
}(function (Highcharts) {
    var _modules = Highcharts ? Highcharts._modules : {};
    function _registerModule(obj, path, args, fn) {
        if (!obj.hasOwnProperty(path)) {
            obj[path] = fn.apply(null, args);
        }
    }
    _registerModule(_modules, 'indicators/atr.src.js', [_modules['parts/Globals.js'], _modules['parts/Utilities.js']], function (H, U) {
        /* *
         *
         *  License: www.highcharts.com/license
         *
         * */



        var isArray = U.isArray;

        var seriesType = H.seriesType,
            UNDEFINED;

        // Utils:
        function accumulateAverage(points, xVal, yVal, i) {
            var xValue = xVal[i],
                yValue = yVal[i];

            points.push([xValue, yValue]);
        }

        function getTR(currentPoint, prevPoint) {
            var pointY = currentPoint,
                prevY = prevPoint,
                HL = pointY[1] - pointY[2],
                HCp = prevY === UNDEFINED ? 0 : Math.abs(pointY[1] - prevY[3]),
                LCp = prevY === UNDEFINED ? 0 : Math.abs(pointY[2] - prevY[3]),
                TR = Math.max(HL, HCp, LCp);

            return TR;
        }

        function populateAverage(points, xVal, yVal, i, period, prevATR) {
            var x = xVal[i - 1],
                TR = getTR(yVal[i - 1], yVal[i - 2]),
                y;

            y = (((prevATR * (period - 1)) + TR) / period);

            return [x, y];
        }

        /**
         * The ATR series type.
         *
         * @private
         * @class
         * @name Highcharts.seriesTypes.atr
         *
         * @augments Highcharts.Series
         */
        seriesType(
            'atr',
            'sma',
            /**
             * Average true range indicator (ATR). This series requires `linkedTo`
             * option to be set.
             *
             * @sample stock/indicators/atr
             *         ATR indicator
             *
             * @extends      plotOptions.sma
             * @since        6.0.0
             * @product      highstock
             * @optionparent plotOptions.atr
             */
            {
                params: {
                    period: 14
                }
            },
            /**
             * @lends Highcharts.Series#
             */
            {
                getValues: function (series, params) {
                    var period = params.period,
                        xVal = series.xData,
                        yVal = series.yData,
                        yValLen = yVal ? yVal.length : 0,
                        xValue = xVal[0],
                        yValue = yVal[0],
                        range = 1,
                        prevATR = 0,
                        TR = 0,
                        ATR = [],
                        xData = [],
                        yData = [],
                        point, i, points;

                    points = [[xValue, yValue]];

                    if (
                        (xVal.length <= period) || !isArray(yVal[0]) ||
                        yVal[0].length !== 4
                    ) {
                        return false;
                    }

                    for (i = 1; i <= yValLen; i++) {

                        accumulateAverage(points, xVal, yVal, i);

                        if (period < range) {
                            point = populateAverage(
                                points,
                                xVal,
                                yVal,
                                i,
                                period,
                                prevATR
                            );
                            prevATR = point[1];
                            ATR.push(point);
                            xData.push(point[0]);
                            yData.push(point[1]);

                        } else if (period === range) {
                            prevATR = TR / (i - 1);
                            ATR.push([xVal[i - 1], prevATR]);
                            xData.push(xVal[i - 1]);
                            yData.push(prevATR);
                            range++;
                        } else {
                            TR += getTR(yVal[i - 1], yVal[i - 2]);
                            range++;
                        }
                    }

                    return {
                        values: ATR,
                        xData: xData,
                        yData: yData
                    };
                }

            }
        );

        /**
         * A `ATR` series. If the [type](#series.atr.type) option is not specified, it
         * is inherited from [chart.type](#chart.type).
         *
         * @extends   series,plotOptions.atr
         * @since     6.0.0
         * @product   highstock
         * @excluding dataParser, dataURL
         * @apioption series.atr
         */

    });
    _registerModule(_modules, 'masters/indicators/atr.src.js', [], function () {


    });
}));