/**
 * @license  Highcharts JS v7.0.3 (2019-02-06)
 *
 * Indicator series type for Highstock
 *
 * (c) 2010-2019 Kacper Madej
 *
 * 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(function () {
            return factory;
        });
    } else {
        factory(typeof Highcharts !== 'undefined' ? Highcharts : undefined);
    }
}(function (Highcharts) {
    (function (H) {
        /* *
         *
         *  (c) 2010-2019 Kacper Madej
         *
         *  License: www.highcharts.com/license
         *
         * */



        var seriesType = H.seriesType,
            UNDEFINED;

        /**
         * The Zig Zag series type.
         *
         * @private
         * @class
         * @name Highcharts.seriesTypes.zigzag
         *
         * @augments Highcharts.Series
         */
        seriesType(
            'zigzag',
            'sma',
            /**
             * Zig Zag indicator.
             *
             * This series requires `linkedTo` option to be set.
             *
             * @sample stock/indicators/zigzag
             *         Zig Zag indicator
             *
             * @extends      plotOptions.sma
             * @since        6.0.0
             * @product      highstock
             * @optionparent plotOptions.zigzag
             */
            {
                /**
                 * @excluding index, period
                 */
                params: {
                    /**
                     * The point index which indicator calculations will base - low
                     * value.
                     *
                     * For example using OHLC data, index=2 means the indicator will be
                     * calculated using Low values.
                     */
                    lowIndex: 2,
                    /**
                     * The point index which indicator calculations will base - high
                     * value.
                     *
                     * For example using OHLC data, index=1 means the indicator will be
                     * calculated using High values.
                     */
                    highIndex: 1,
                    /**
                     * The threshold for the value change.
                     *
                     * For example deviation=1 means the indicator will ignore all price
                     * movements less than 1%.
                     */
                    deviation: 1
                }
            },
            /**
             * @lends Highcharts.Series#
             */
            {
                nameComponents: ['deviation'],
                nameSuffixes: ['%'],
                nameBase: 'Zig Zag',
                getValues: function (series, params) {
                    var lowIndex = params.lowIndex,
                        highIndex = params.highIndex,
                        deviation = params.deviation / 100,
                        deviations = {
                            'low': 1 + deviation,
                            'high': 1 - deviation
                        },
                        xVal = series.xData,
                        yVal = series.yData,
                        yValLen = yVal ? yVal.length : 0,
                        Zigzag = [],
                        xData = [],
                        yData = [],
                        i, j,
                        ZigzagPoint,
                        firstZigzagLow,
                        firstZigzagHigh,
                        directionUp,
                        zigZagLen,
                        exitLoop = false,
                        yIndex = false;

                    // Exit if not enught points or no low or high values
                    if (
                        xVal.length <= 1 ||
                        (
                            yValLen &&
                            (
                                yVal[0][lowIndex] === UNDEFINED ||
                                yVal[0][highIndex] === UNDEFINED
                            )
                        )
                    ) {
                        return false;
                    }

                    // Set first zigzag point candidate
                    firstZigzagLow = yVal[0][lowIndex];
                    firstZigzagHigh = yVal[0][highIndex];

                    // Search for a second zigzag point candidate,
                    // this will also set first zigzag point
                    for (i = 1; i < yValLen; i++) {
                        // requried change to go down
                        if (yVal[i][lowIndex] <= firstZigzagHigh * deviations.high) {
                            Zigzag.push([xVal[0], firstZigzagHigh]);
                            // second zigzag point candidate
                            ZigzagPoint = [xVal[i], yVal[i][lowIndex]];
                            // next line will be going up
                            directionUp = true;
                            exitLoop = true;

                            // requried change to go up
                        } else if (
                            yVal[i][highIndex] >= firstZigzagLow * deviations.low
                        ) {
                            Zigzag.push([xVal[0], firstZigzagLow]);
                            // second zigzag point candidate
                            ZigzagPoint = [xVal[i], yVal[i][highIndex]];
                            // next line will be going down
                            directionUp = false;
                            exitLoop = true;

                        }
                        if (exitLoop) {
                            xData.push(Zigzag[0][0]);
                            yData.push(Zigzag[0][1]);
                            j = i++;
                            i = yValLen;
                        }
                    }

                    // Search for next zigzags
                    for (i = j; i < yValLen; i++) {
                        if (directionUp) { // next line up

                            // lower when going down -> change zigzag candidate
                            if (yVal[i][lowIndex] <= ZigzagPoint[1]) {
                                ZigzagPoint = [xVal[i], yVal[i][lowIndex]];
                            }

                            // requried change to go down -> new zigzagpoint and
                            // direction change
                            if (yVal[i][highIndex] >= ZigzagPoint[1] * deviations.low) {
                                yIndex = highIndex;
                            }

                        } else { // next line down

                            // higher when going up -> change zigzag candidate
                            if (yVal[i][highIndex] >= ZigzagPoint[1]) {
                                ZigzagPoint = [xVal[i], yVal[i][highIndex]];
                            }

                            // requried change to go down -> new zigzagpoint and
                            // direction change
                            if (yVal[i][lowIndex] <= ZigzagPoint[1] * deviations.high) {
                                yIndex = lowIndex;
                            }
                        }
                        if (yIndex !== false) { // new zigzag point and direction change
                            Zigzag.push(ZigzagPoint);
                            xData.push(ZigzagPoint[0]);
                            yData.push(ZigzagPoint[1]);
                            ZigzagPoint = [xVal[i], yVal[i][yIndex]];
                            directionUp = !directionUp;

                            yIndex = false;
                        }
                    }

                    zigZagLen = Zigzag.length;

                    // no zigzag for last point
                    if (
                        zigZagLen !== 0 &&
                        Zigzag[zigZagLen - 1][0] < xVal[yValLen - 1]
                    ) {
                        // set last point from zigzag candidate
                        Zigzag.push(ZigzagPoint);
                        xData.push(ZigzagPoint[0]);
                        yData.push(ZigzagPoint[1]);
                    }
                    return {
                        values: Zigzag,
                        xData: xData,
                        yData: yData
                    };
                }
            }
        );

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

    }(Highcharts));
    return (function () {


    }());
}));