hlm_pl_mall_store/node_modules/highcharts/indicators/mfi.src.js

/**
 * @license Highstock JS v9.1.1 (2021-06-04)
 *
 * Money Flow Index indicator for Highcharts Stock
 *
 * (c) 2010-2021 Grzegorz Blachliński
 *
 * 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/mfi', ['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, 'Stock/Indicators/MFI/MFIIndicator.js', [_modules['Core/Series/SeriesRegistry.js'], _modules['Core/Utilities.js']], function (SeriesRegistry, U) {
        /* *
         *
         *  Money Flow Index indicator for Highcharts Stock
         *
         *  (c) 2010-2021 Grzegorz Blachliński
         *
         *  License: www.highcharts.com/license
         *
         *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
         *
         * */
        var __extends = (this && this.__extends) || (function () {
                var extendStatics = function (d,
            b) {
                    extendStatics = Object.setPrototypeOf ||
                        ({ __proto__: [] } instanceof Array && function (d,
            b) { d.__proto__ = b; }) ||
                        function (d,
            b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
                return extendStatics(d, b);
            };
            return function (d, b) {
                extendStatics(d, b);
                function __() { this.constructor = d; }
                d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
            };
        })();
        var SMAIndicator = SeriesRegistry.seriesTypes.sma;
        var extend = U.extend,
            merge = U.merge,
            error = U.error,
            isArray = U.isArray;
        /* eslint-disable require-jsdoc */
        // Utils:
        function sumArray(array) {
            return array.reduce(function (prev, cur) {
                return prev + cur;
            });
        }
        function toFixed(a, n) {
            return parseFloat(a.toFixed(n));
        }
        function calculateTypicalPrice(point) {
            return (point[1] + point[2] + point[3]) / 3;
        }
        function calculateRawMoneyFlow(typicalPrice, volume) {
            return typicalPrice * volume;
        }
        /* eslint-enable require-jsdoc */
        /* *
         *
         *  Class
         *
         * */
        /**
         * The MFI series type.
         *
         * @private
         * @class
         * @name Highcharts.seriesTypes.mfi
         *
         * @augments Highcharts.Series
         */
        var MFIIndicator = /** @class */ (function (_super) {
                __extends(MFIIndicator, _super);
            function MFIIndicator() {
                var _this = _super !== null && _super.apply(this,
                    arguments) || this;
                /* *
                *
                *  Properties
                *
                * */
                _this.data = void 0;
                _this.options = void 0;
                _this.points = void 0;
                return _this;
            }
            /* *
            *
            *  Functions
            *
            * */
            MFIIndicator.prototype.getValues = function (series, params) {
                var period = params.period,
                    xVal = series.xData,
                    yVal = series.yData,
                    yValLen = yVal ? yVal.length : 0,
                    decimals = params.decimals, 
                    // MFI starts calculations from the second point
                    // Cause we need to calculate change between two points
                    range = 1,
                    volumeSeries = series.chart.get(params.volumeSeriesID),
                    yValVolume = (volumeSeries && volumeSeries.yData),
                    MFI = [],
                    isUp = false,
                    xData = [],
                    yData = [],
                    positiveMoneyFlow = [],
                    negativeMoneyFlow = [],
                    newTypicalPrice,
                    oldTypicalPrice,
                    rawMoneyFlow,
                    negativeMoneyFlowSum,
                    positiveMoneyFlowSum,
                    moneyFlowRatio,
                    MFIPoint,
                    i;
                if (!volumeSeries) {
                    error('Series ' +
                        params.volumeSeriesID +
                        ' not found! Check `volumeSeriesID`.', true, series.chart);
                    return;
                }
                // MFI requires high low and close values
                if ((xVal.length <= period) || !isArray(yVal[0]) ||
                    yVal[0].length !== 4 ||
                    !yValVolume) {
                    return;
                }
                // Calculate first typical price
                newTypicalPrice = calculateTypicalPrice(yVal[range]);
                // Accumulate first N-points
                while (range < period + 1) {
                    // Calculate if up or down
                    oldTypicalPrice = newTypicalPrice;
                    newTypicalPrice = calculateTypicalPrice(yVal[range]);
                    isUp = newTypicalPrice >= oldTypicalPrice;
                    // Calculate raw money flow
                    rawMoneyFlow = calculateRawMoneyFlow(newTypicalPrice, yValVolume[range]);
                    // Add to array
                    positiveMoneyFlow.push(isUp ? rawMoneyFlow : 0);
                    negativeMoneyFlow.push(isUp ? 0 : rawMoneyFlow);
                    range++;
                }
                for (i = range - 1; i < yValLen; i++) {
                    if (i > range - 1) {
                        // Remove first point from array
                        positiveMoneyFlow.shift();
                        negativeMoneyFlow.shift();
                        // Calculate if up or down
                        oldTypicalPrice = newTypicalPrice;
                        newTypicalPrice = calculateTypicalPrice(yVal[i]);
                        isUp = newTypicalPrice > oldTypicalPrice;
                        // Calculate raw money flow
                        rawMoneyFlow = calculateRawMoneyFlow(newTypicalPrice, yValVolume[i]);
                        // Add to array
                        positiveMoneyFlow.push(isUp ? rawMoneyFlow : 0);
                        negativeMoneyFlow.push(isUp ? 0 : rawMoneyFlow);
                    }
                    // Calculate sum of negative and positive money flow:
                    negativeMoneyFlowSum = sumArray(negativeMoneyFlow);
                    positiveMoneyFlowSum = sumArray(positiveMoneyFlow);
                    moneyFlowRatio = positiveMoneyFlowSum / negativeMoneyFlowSum;
                    MFIPoint = toFixed(100 - (100 / (1 + moneyFlowRatio)), decimals);
                    MFI.push([xVal[i], MFIPoint]);
                    xData.push(xVal[i]);
                    yData.push(MFIPoint);
                }
                return {
                    values: MFI,
                    xData: xData,
                    yData: yData
                };
            };
            /**
             * Money Flow Index. This series requires `linkedTo` option to be set and
             * should be loaded after the `stock/indicators/indicators.js` file.
             *
             * @sample stock/indicators/mfi
             *         Money Flow Index Indicator
             *
             * @extends      plotOptions.sma
             * @since        6.0.0
             * @product      highstock
             * @requires     stock/indicators/indicators
             * @requires     stock/indicators/mfi
             * @optionparent plotOptions.mfi
             */
            MFIIndicator.defaultOptions = merge(SMAIndicator.defaultOptions, {
                /**
                 * @excluding index
                 */
                params: {
                    index: void 0,
                    /**
                     * The id of volume series which is mandatory.
                     * For example using OHLC data, volumeSeriesID='volume' means
                     * the indicator will be calculated using OHLC and volume values.
                     */
                    volumeSeriesID: 'volume',
                    /**
                     * Number of maximum decimals that are used in MFI calculations.
                     */
                    decimals: 4
                }
            });
            return MFIIndicator;
        }(SMAIndicator));
        extend(MFIIndicator.prototype, {
            nameBase: 'Money Flow Index'
        });
        SeriesRegistry.registerSeriesType('mfi', MFIIndicator);
        /* *
         *
         *  Default Export
         *
         * */
        /**
         * A `MFI` series. If the [type](#series.mfi.type) option is not specified, it
         * is inherited from [chart.type](#chart.type).
         *
         * @extends   series,plotOptions.mfi
         * @since     6.0.0
         * @excluding dataParser, dataURL
         * @product   highstock
         * @requires  stock/indicators/indicators
         * @requires  stock/indicators/mfi
         * @apioption series.mfi
         */
        ''; // to include the above in the js output

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


    });
}));