/**
 * @license  Highcharts JS v6.0.4 (2017-12-15)
 *
 * Indicator series type for Highstock
 *
 * (c) 2010-2017 Sebastian Bochan
 *
 * 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) {

        var isArray = H.isArray,
            seriesType = H.seriesType;

        // Utils:
        function sumArray(array) {
            return H.reduce(array, function(prev, cur) {
                return prev + cur;
            }, 0);
        }

        function meanDeviation(arr, sma) {
            var len = arr.length,
                sum = 0,
                i;

            for (i = 0; i < len; i++) {
                sum += Math.abs(sma - (arr[i]));
            }

            return sum;
        }

        /**
         * The CCI series type.
         *
         * @constructor seriesTypes.cci
         * @augments seriesTypes.sma
         */
        seriesType('cci', 'sma',
            /**
             * Commodity Channel Index (CCI). This series requires `linkedTo` option to be set.
             * 
             * @extends {plotOptions.sma}
             * @product highstock
             * @sample {highstock} stock/indicators/cci CCI indicator
             * @since 6.0.0
             * @optionparent plotOptions.cci
             */
            {
                name: 'CCI (14)',
                params: {
                    period: 14
                }
            }, {
                getValues: function(series, params) {
                    var period = params.period,
                        xVal = series.xData,
                        yVal = series.yData,
                        yValLen = yVal ? yVal.length : 0,
                        TP = [],
                        periodTP = [],
                        range = 1,
                        CCI = [],
                        xData = [],
                        yData = [],
                        CCIPoint, p, len, smaTP, TPtemp, meanDev, i;

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

                    // accumulate first N-points
                    while (range < period) {
                        p = yVal[range - 1];
                        TP.push((p[1] + p[2] + p[3]) / 3);
                        range++;
                    }

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

                        p = yVal[i - 1];
                        TPtemp = (p[1] + p[2] + p[3]) / 3;
                        len = TP.push(TPtemp);
                        periodTP = TP.slice(len - period);

                        smaTP = sumArray(periodTP) / period;
                        meanDev = meanDeviation(periodTP, smaTP) / period;

                        CCIPoint = ((TPtemp - smaTP) / (0.015 * meanDev));

                        CCI.push([xVal[i - 1], CCIPoint]);
                        xData.push(xVal[i - 1]);
                        yData.push(CCIPoint);
                    }

                    return {
                        values: CCI,
                        xData: xData,
                        yData: yData
                    };
                }
            });

        /**
         * A `CCI` series. If the [type](#series.cci.type) option is not
         * specified, it is inherited from [chart.type](#chart.type).
         * 
         * For options that apply to multiple series, it is recommended to add
         * them to the [plotOptions.series](#plotOptions.series) options structure.
         * To apply to all series of this specific type, apply it to 
         * [plotOptions.cci](#plotOptions.cci).
         * 
         * @type {Object}
         * @since 6.0.0
         * @extends series,plotOptions.cci
         * @excluding data,dataParser,dataURL
         * @product highstock
         * @apioption series.cci
         */

        /**
         * @type {Array<Object|Array>}
         * @since 6.0.0
         * @extends series.sma.data
         * @product highstock
         * @apioption series.cci.data
         */

    }(Highcharts));
}));
