/* *
 *
 *  Variable Pie module for Highcharts
 *
 *  (c) 2010-2021 Grzegorz Blachliński
 *
 *  License: www.highcharts.com/license
 *
 *  !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
 *
 * */
'use strict';
import SeriesRegistry from '../../Core/Series/SeriesRegistry.js';
const { pie: PieSeries } = SeriesRegistry.seriesTypes;
import U from '../../Core/Utilities.js';
const { arrayMax, arrayMin, clamp, extend, fireEvent, merge, pick } = U;
import VariablePieSeriesDefaults from './VariablePieSeriesDefaults.js';
/* *
 *
 *  Class
 *
 * */
/**
 * The variablepie series type.
 *
 * @private
 * @class
 * @name Highcharts.seriesTypes.variablepie
 *
 * @augments Highcharts.Series
 */
class VariablePieSeries extends PieSeries {
    constructor() {
        /* *
         *
         *  Static Properties
         *
         * */
        super(...arguments);
        /* *
         *
         *  Properties
         *
         * */
        this.data = void 0;
        this.options = void 0;
        this.points = void 0;
        this.radii = void 0;
    }
    /* *
     *
     *  Functions
     *
     * */
    /**
     * Before standard translate method for pie chart it is needed to calculate
     * min/max radius of each pie slice based on its Z value.
     * @private
     */
    calculateExtremes() {
        const series = this, chart = series.chart, plotWidth = chart.plotWidth, plotHeight = chart.plotHeight, seriesOptions = series.options, slicingRoom = 2 * (seriesOptions.slicedOffset || 0), zData = series.zData, smallestSize = Math.min(plotWidth, plotHeight) - slicingRoom, 
        // Min and max size of pie slice:
        extremes = {}, 
        // In pie charts size of a pie is changed to make space for
        // dataLabels, then series.center is changing.
        positions = series.center || series.getCenter();
        let zMin, zMax;
        for (const prop of ['minPointSize', 'maxPointSize']) {
            let length = seriesOptions[prop];
            const isPercent = /%$/.test(length);
            length = parseInt(length, 10);
            extremes[prop] = isPercent ?
                smallestSize * length / 100 :
                length * 2; // Because it should be radius, not diameter.
        }
        series.minPxSize = positions[3] + extremes.minPointSize;
        series.maxPxSize = clamp(positions[2], positions[3] + extremes.minPointSize, extremes.maxPointSize);
        if (zData.length) {
            zMin = pick(seriesOptions.zMin, arrayMin(zData.filter(series.zValEval)));
            zMax = pick(seriesOptions.zMax, arrayMax(zData.filter(series.zValEval)));
            this.getRadii(zMin, zMax, series.minPxSize, series.maxPxSize);
        }
    }
    /**
     * Finding radius of series points based on their Z value and min/max Z
     * value for all series.
     *
     * @private
     * @function Highcharts.Series#getRadii
     *
     * @param {number} zMin
     * Min threshold for Z value. If point's Z value is smaller that zMin, point
     * will have the smallest possible radius.
     *
     * @param {number} zMax
     * Max threshold for Z value. If point's Z value is bigger that zMax, point
     * will have the biggest possible radius.
     *
     * @param {number} minSize
     * Minimal pixel size possible for radius.
     *
     * @param {numbner} maxSize
     * Minimal pixel size possible for radius.
     */
    getRadii(zMin, zMax, minSize, maxSize) {
        const zData = this.zData, radii = [], options = this.options, sizeByArea = options.sizeBy !== 'radius', zRange = zMax - zMin;
        let pos, value, radius;
        // Calculate radius for all pie slice's based on their Z values
        for (let i = 0; i < zData.length; i++) {
            // if zData[i] is null/undefined/string we need to take zMin for
            // smallest radius.
            value = this.zValEval(zData[i]) ? zData[i] : zMin;
            if (value <= zMin) {
                radius = minSize / 2;
            }
            else if (value >= zMax) {
                radius = maxSize / 2;
            }
            else {
                // Relative size, a number between 0 and 1
                pos = zRange > 0 ? (value - zMin) / zRange : 0.5;
                if (sizeByArea) {
                    pos = Math.sqrt(pos);
                }
                radius = Math.ceil(minSize + pos * (maxSize - minSize)) / 2;
            }
            radii.push(radius);
        }
        this.radii = radii;
    }
    /**
     * It is needed to null series.center on chart redraw. Probably good idea
     * will be to add this option in directly in pie series.
     * @private
     */
    redraw() {
        this.center = null;
        super.redraw();
    }
    /** @private */
    getDataLabelPosition(point, distance) {
        const { center, options } = this, angle = point.angle || 0, r = this.radii[point.index], x = center[0] + Math.cos(angle) * r, y = center[1] + Math.sin(angle) * r, connectorOffset = (options.slicedOffset || 0) +
            (options.borderWidth || 0), 
        // Set the anchor point for data labels. Use point.labelDistance
        // instead of labelDistance // #1174
        // finalConnectorOffset - not override connectorOffset value.
        finalConnectorOffset = Math.min(connectorOffset, distance / 5); // #1678
        return {
            distance,
            natural: {
                // Initial position of the data label - it's utilized for
                // finding the final position for the label
                x: x + Math.cos(angle) * distance,
                y: y + Math.sin(angle) * distance
            },
            computed: {
            // Used for generating connector path - initialized later in
            // drawDataLabels function x: undefined, y: undefined
            },
            // Left - pie on the left side of the data label
            // Right - pie on the right side of the data label
            alignment: point.half ? 'right' : 'left',
            connectorPosition: {
                breakAt: {
                    x: x + Math.cos(angle) * finalConnectorOffset,
                    y: y + Math.sin(angle) * finalConnectorOffset
                },
                touchingSliceAt: {
                    x,
                    y
                }
            }
        };
    }
    /**
     * Extend translate by updating radius for each pie slice instead of using
     * one global radius.
     * @private
     */
    translate(positions) {
        this.generatePoints();
        const series = this, precision = 1000, // issue #172
        options = series.options, slicedOffset = options.slicedOffset, startAngle = options.startAngle || 0, startAngleRad = Math.PI / 180 * (startAngle - 90), endAngleRad = Math.PI / 180 * (pick(options.endAngle, startAngle + 360) - 90), circ = endAngleRad - startAngleRad, // 2 * Math.PI,
        points = series.points, ignoreHiddenPoint = options.ignoreHiddenPoint;
        let cumulative = 0, start, end, angle, 
        // the x component of the radius vector for a given point
        radiusX, radiusY, point, pointRadii;
        series.startAngleRad = startAngleRad;
        series.endAngleRad = endAngleRad;
        // Use calculateExtremes to get series.radii array.
        series.calculateExtremes();
        // Get positions - either an integer or a percentage string must be
        // given. If positions are passed as a parameter, we're in a
        // recursive loop for adjusting space for data labels.
        if (!positions) {
            series.center = positions = series.getCenter();
        }
        // Calculate the geometry for each point
        for (let i = 0; i < points.length; i++) {
            point = points[i];
            pointRadii = series.radii[i];
            // Set start and end angle
            start = startAngleRad + (cumulative * circ);
            if (!ignoreHiddenPoint || point.visible) {
                cumulative += point.percentage / 100;
            }
            end = startAngleRad + (cumulative * circ);
            // Set the shape
            point.shapeType = 'arc';
            point.shapeArgs = {
                x: positions[0],
                y: positions[1],
                r: pointRadii,
                innerR: positions[3] / 2,
                start: Math.round(start * precision) / precision,
                end: Math.round(end * precision) / precision
            };
            // The angle must stay within -90 and 270 (#2645)
            angle = (end + start) / 2;
            if (angle > 1.5 * Math.PI) {
                angle -= 2 * Math.PI;
            }
            else if (angle < -Math.PI / 2) {
                angle += 2 * Math.PI;
            }
            // Center for the sliced out slice
            point.slicedTranslation = {
                translateX: Math.round(Math.cos(angle) * slicedOffset),
                translateY: Math.round(Math.sin(angle) * slicedOffset)
            };
            // Set the anchor point for tooltips
            radiusX = Math.cos(angle) * positions[2] / 2;
            radiusY = Math.sin(angle) * positions[2] / 2;
            point.tooltipPos = [
                positions[0] + radiusX * 0.7,
                positions[1] + radiusY * 0.7
            ];
            point.half = angle < -Math.PI / 2 || angle > Math.PI / 2 ?
                1 :
                0;
            point.angle = angle;
        }
        fireEvent(series, 'afterTranslate');
    }
    /**
     * For arrayMin and arrayMax calculations array shouldn't have
     * null/undefined/string values. In this case it is needed to check if
     * points Z value is a Number.
     * @private
     */
    zValEval(zVal) {
        if (typeof zVal === 'number' && !isNaN(zVal)) {
            return true;
        }
        return null;
    }
}
VariablePieSeries.defaultOptions = merge(PieSeries.defaultOptions, VariablePieSeriesDefaults);
extend(VariablePieSeries.prototype, {
    pointArrayMap: ['y', 'z'],
    parallelArrays: ['x', 'y', 'z']
});
SeriesRegistry.registerSeriesType('variablepie', VariablePieSeries);
/* *
 *
 *  Default Export
 *
 * */
export default VariablePieSeries;
/* *
 *
 *  API Declarations
 *
 * */
/**
 * @typedef {"area"|"radius"} Highcharts.VariablePieSizeByValue
 */
''; // adds doclets above to transpiled file
