/* *
 *
 *  A commercial license may be required depending on use.
 *  See www.highcharts.com/license
 *
 *
 * */
'use strict';
import SeriesRegistry from '../../../Core/Series/SeriesRegistry.js';
const { sma: SMAIndicator } = SeriesRegistry.seriesTypes;
import U from '../../../Core/Utilities.js';
const { isNumber, merge } = U;
/* *
 *
 *  Class
 *
 * */
/**
 * The CMO series type.
 *
 * @private
 * @class
 * @name Highcharts.seriesTypes.cmo
 *
 * @augments Highcharts.Series
 */
class CMOIndicator extends SMAIndicator {
    /* *
     *
     *  Functions
     *
     * */
    getValues(series, params) {
        const period = params.period, xVal = series.xData, yVal = series.yData, yValLen = yVal ? yVal.length : 0, CMO = [], xData = [], yData = [];
        let i, index = params.index, values;
        if (xVal.length < period) {
            return;
        }
        if (isNumber(yVal[0])) {
            values = yVal;
        }
        else {
            // In case of the situation, where the series type has data length
            // shorter then 4 (HLC, range), this ensures that we are not trying
            // to reach the index out of bounds
            index = Math.min(index, yVal[0].length - 1);
            values = yVal.map((value) => value[index]);
        }
        let firstAddedSum = 0, sumOfHigherValues = 0, sumOfLowerValues = 0, y;
        // Calculate first point, check if the first value
        // was added to sum of higher/lower values, and what was the value.
        for (let j = period; j > 0; j--) {
            if (values[j] > values[j - 1]) {
                sumOfHigherValues += values[j] - values[j - 1];
            }
            else if (values[j] < values[j - 1]) {
                sumOfLowerValues += values[j - 1] - values[j];
            }
        }
        // You might divide by 0 if all values are equal,
        // so return 0 in this case.
        y =
            sumOfHigherValues + sumOfLowerValues > 0 ?
                (100 * (sumOfHigherValues - sumOfLowerValues)) /
                    (sumOfHigherValues + sumOfLowerValues) :
                0;
        xData.push(xVal[period]);
        yData.push(y);
        CMO.push([xVal[period], y]);
        for (i = period + 1; i < yValLen; i++) {
            firstAddedSum = Math.abs(values[i - period - 1] - values[i - period]);
            if (values[i] > values[i - 1]) {
                sumOfHigherValues += values[i] - values[i - 1];
            }
            else if (values[i] < values[i - 1]) {
                sumOfLowerValues += values[i - 1] - values[i];
            }
            // Check, to which sum was the first value added to,
            // and subtract this value from given sum.
            if (values[i - period] > values[i - period - 1]) {
                sumOfHigherValues -= firstAddedSum;
            }
            else {
                sumOfLowerValues -= firstAddedSum;
            }
            // Same as above.
            y =
                sumOfHigherValues + sumOfLowerValues > 0 ?
                    (100 * (sumOfHigherValues - sumOfLowerValues)) /
                        (sumOfHigherValues + sumOfLowerValues) :
                    0;
            xData.push(xVal[i]);
            yData.push(y);
            CMO.push([xVal[i], y]);
        }
        return {
            values: CMO,
            xData: xData,
            yData: yData
        };
    }
}
/* *
 *
 *  Static Properties
 *
 * */
/**
 * Chande Momentum Oscilator (CMO) technical indicator. This series
 * requires the `linkedTo` option to be set and should be loaded after
 * the `stock/indicators/indicators.js` file.
 *
 * @sample stock/indicators/cmo
 *         CMO indicator
 *
 * @extends      plotOptions.sma
 * @since 9.1.0
 * @product      highstock
 * @requires     stock/indicators/indicators
 * @requires     stock/indicators/cmo
 * @optionparent plotOptions.cmo
 */
CMOIndicator.defaultOptions = merge(SMAIndicator.defaultOptions, {
    params: {
        period: 20,
        index: 3
    }
});
SeriesRegistry.registerSeriesType('cmo', CMOIndicator);
/* *
 *
 *  Default Export
 *
 * */
export default CMOIndicator;
/* *
 *
 *  API Options
 *
 * */
/**
 * A `CMO` series. If the [type](#series.cmo.type) option is not
 * specified, it is inherited from [chart.type](#chart.type).
 *
 * @extends   series,plotOptions.cmo
 * @since 9.1.0
 * @product   highstock
 * @excluding dataParser, dataURL
 * @requires  stock/indicators/indicators
 * @requires  stock/indicators/cmo
 * @apioption series.cmo
 */
(''); // To include the above in the js output
