/* *
 * Solid angular gauge module
 *
 * (c) 2010-2019 Torstein Honsi
 *
 * License: www.highcharts.com/license
 */

/**
 * Additional options, depending on the actual symbol drawn.
 *
 * @interface Highcharts.SymbolOptionsObject
 *//**
 * Whether to draw rounded edges.
 * @name Highcharts.SymbolOptionsObject#rounded
 * @type {boolean|undefined}
 */

'use strict';

import H from '../parts/Globals.js';

import U from '../parts/Utilities.js';
var isNumber = U.isNumber,
    pInt = U.pInt;

import '../parts/Options.js';
import '../parts-more/GaugeSeries.js';

var pick = H.pick,
    wrap = H.wrap,
    Renderer = H.Renderer,
    colorAxisMethods;

/**
 * Symbol definition of an arc with round edges.
 *
 * @private
 * @function Highcharts.Renderer#symbols.arc
 *
 * @param {number} x
 *        The X coordinate for the top left position.
 *
 * @param {number} y
 *        The Y coordinate for the top left position.
 *
 * @param {number} w
 *        The pixel width.
 *
 * @param {number} h
 *        The pixel height.
 *
 * @param {Highcharts.SymbolOptionsObject} [options]
 *        Additional options, depending on the actual symbol drawn.
 *
 * @return {Highcharts.SVGPathArray}
 *         Path of the created arc.
 */
wrap(
    Renderer.prototype.symbols,
    'arc',
    function (proceed, x, y, w, h, options) {
        var arc = proceed,
            path = arc(x, y, w, h, options);

        if (options.rounded) {
            var r = options.r || w,
                smallR = (r - options.innerR) / 2,
                x1 = path[1],
                y1 = path[2],
                x2 = path[12],
                y2 = path[13],
                roundStart = ['A', smallR, smallR, 0, 1, 1, x1, y1],
                roundEnd = ['A', smallR, smallR, 0, 1, 1, x2, y2];

            // Insert rounded edge on end, and remove line.
            path.splice.apply(path, [path.length - 1, 0].concat(roundStart));
            // Insert rounded edge on end, and remove line.
            path.splice.apply(path, [11, 3].concat(roundEnd));
        }

        return path;
    }
);

// These methods are defined in the ColorAxis object, and copied here.
// If we implement an AMD system we should make ColorAxis a dependency.
colorAxisMethods = {


    initDataClasses: function (userOptions) {
        var chart = this.chart,
            dataClasses,
            colorCounter = 0,
            options = this.options;

        this.dataClasses = dataClasses = [];

        userOptions.dataClasses.forEach(function (dataClass, i) {
            var colors;

            dataClass = H.merge(dataClass);
            dataClasses.push(dataClass);
            if (!dataClass.color) {
                if (options.dataClassColor === 'category') {
                    colors = chart.options.colors;
                    dataClass.color = colors[colorCounter++];
                    // loop back to zero
                    if (colorCounter === colors.length) {
                        colorCounter = 0;
                    }
                } else {
                    dataClass.color = H.color(options.minColor).tweenTo(
                        H.color(options.maxColor),
                        i / (userOptions.dataClasses.length - 1)
                    );
                }
            }
        });
    },

    initStops: function (userOptions) {
        this.stops = userOptions.stops || [
            [0, this.options.minColor],
            [1, this.options.maxColor]
        ];
        this.stops.forEach(function (stop) {
            stop.color = H.color(stop[1]);
        });
    },
    // Translate from a value to a color
    toColor: function (value, point) {
        var pos,
            stops = this.stops,
            from,
            to,
            color,
            dataClasses = this.dataClasses,
            dataClass,
            i;

        if (dataClasses) {
            i = dataClasses.length;
            while (i--) {
                dataClass = dataClasses[i];
                from = dataClass.from;
                to = dataClass.to;
                if (
                    (from === undefined || value >= from) &&
                    (to === undefined || value <= to)
                ) {
                    color = dataClass.color;
                    if (point) {
                        point.dataClass = i;
                    }
                    break;
                }
            }

        } else {

            if (this.isLog) {
                value = this.val2lin(value);
            }
            pos = 1 - ((this.max - value) / (this.max - this.min));
            i = stops.length;
            while (i--) {
                if (pos > stops[i][0]) {
                    break;
                }
            }
            from = stops[i] || stops[i + 1];
            to = stops[i + 1] || from;

            // The position within the gradient
            pos = 1 - (to[0] - pos) / ((to[0] - from[0]) || 1);

            color = from.color.tweenTo(
                to.color,
                pos
            );
        }
        return color;
    }
};

/**
 * A solid gauge is a circular gauge where the value is indicated by a filled
 * arc, and the color of the arc may variate with the value.
 *
 * @sample highcharts/demo/gauge-solid/
 *         Solid gauges
 *
 * @extends      plotOptions.gauge
 * @excluding    dial, pivot, wrap
 * @product      highcharts
 * @optionparent plotOptions.solidgauge
 */
var solidGaugeOptions = {
    /**
     * The inner radius for points in a solid gauge. Can be given as a number
     * (pixels) or percentage string.
     *
     * @sample {highcharts} highcharts/plotoptions/solidgauge-radius/
     *         Individual radius and innerRadius
     *
     * @type      {number|string}
     * @default   60
     * @since     4.1.6
     * @product   highcharts
     * @apioption plotOptions.solidgauge.innerRadius
     */

    /**
     * Whether the strokes of the solid gauge should be `round` or `square`.
     *
     * @sample {highcharts} highcharts/demo/gauge-activity/
     *         Rounded gauge
     *
     * @type       {string}
     * @default    round
     * @since      4.2.2
     * @product    highcharts
     * @validvalue ["square", "round"]
     * @apioption  plotOptions.solidgauge.linecap
     */

    /**
     * Allow the gauge to overshoot the end of the perimeter axis by this
     * many degrees. Say if the gauge axis goes from 0 to 60, a value of
     * 100, or 1000, will show 5 degrees beyond the end of the axis when this
     * option is set to 5.
     *
     * @type      {number}
     * @default   0
     * @since     3.0.10
     * @product   highcharts
     * @apioption plotOptions.solidgauge.overshoot
     */

    /**
     * The outer radius for points in a solid gauge. Can be given as a number
     * (pixels) or percentage string.
     *
     * @sample {highcharts} highcharts/plotoptions/solidgauge-radius/
     *         Individual radius and innerRadius
     *
     * @type      {number|string}
     * @default   100
     * @since     4.1.6
     * @product   highcharts
     * @apioption plotOptions.solidgauge.radius
     */

    /**
     * Wether to draw rounded edges on the gauge.
     *
     * @sample {highcharts} highcharts/demo/gauge-activity/
     *         Activity Gauge
     *
     * @type      {boolean}
     * @default   false
     * @since     5.0.8
     * @product   highcharts
     * @apioption plotOptions.solidgauge.rounded
     */

    /**
     * The threshold or base level for the gauge.
     *
     * @sample {highcharts} highcharts/plotoptions/solidgauge-threshold/
     *         Zero threshold with negative and positive values
     *
     * @type      {number}
     * @since     5.0.3
     * @product   highcharts
     * @apioption plotOptions.solidgauge.threshold
     */

    /**
     * Whether to give each point an individual color.
     */
    colorByPoint: true,

    dataLabels: {
        /** @ignore-option */
        y: 0
    }

};


// The solidgauge series type
H.seriesType('solidgauge', 'gauge', solidGaugeOptions, {
    drawLegendSymbol: H.LegendSymbolMixin.drawRectangle,
    // Extend the translate function to extend the Y axis with the necessary
    // decoration (#5895).
    translate: function () {
        var axis = this.yAxis;

        H.extend(axis, colorAxisMethods);

        // Prepare data classes
        if (!axis.dataClasses && axis.options.dataClasses) {
            axis.initDataClasses(axis.options);
        }
        axis.initStops(axis.options);

        // Generate points and inherit data label position
        H.seriesTypes.gauge.prototype.translate.call(this);
    },

    // Draw the points where each point is one needle.
    drawPoints: function () {
        var series = this,
            yAxis = series.yAxis,
            center = yAxis.center,
            options = series.options,
            renderer = series.chart.renderer,
            overshoot = options.overshoot,
            overshootVal = isNumber(overshoot) ? overshoot / 180 * Math.PI : 0,
            thresholdAngleRad;

        // Handle the threshold option
        if (isNumber(options.threshold)) {
            thresholdAngleRad = yAxis.startAngleRad + yAxis.translate(
                options.threshold,
                null,
                null,
                null,
                true
            );
        }
        this.thresholdAngleRad = pick(thresholdAngleRad, yAxis.startAngleRad);


        series.points.forEach(function (point) {
            // #10630 null point should not be draw
            if (!point.isNull) { // condition like in pie chart
                var graphic = point.graphic,
                    rotation = yAxis.startAngleRad +
                        yAxis.translate(point.y, null, null, null, true),
                    radius = (
                        pInt(
                            pick(
                                point.options.radius,
                                options.radius,
                                100
                            )
                        ) * center[2]
                    ) / 200,
                    innerRadius = (
                        pInt(
                            pick(
                                point.options.innerRadius,
                                options.innerRadius,
                                60
                            )
                        ) * center[2]
                    ) / 200,
                    shapeArgs,
                    d,
                    toColor = yAxis.toColor(point.y, point),
                    axisMinAngle = Math.min(
                        yAxis.startAngleRad,
                        yAxis.endAngleRad
                    ),
                    axisMaxAngle = Math.max(
                        yAxis.startAngleRad,
                        yAxis.endAngleRad
                    ),
                    minAngle,
                    maxAngle;

                if (toColor === 'none') { // #3708
                    toColor = point.color || series.color || 'none';
                }
                if (toColor !== 'none') {
                    point.color = toColor;
                }

                // Handle overshoot and clipping to axis max/min
                rotation = Math.max(
                    axisMinAngle - overshootVal,
                    Math.min(axisMaxAngle + overshootVal, rotation)
                );

                // Handle the wrap option
                if (options.wrap === false) {
                    rotation = Math.max(
                        axisMinAngle,
                        Math.min(axisMaxAngle, rotation)
                    );
                }

                minAngle = Math.min(rotation, series.thresholdAngleRad);
                maxAngle = Math.max(rotation, series.thresholdAngleRad);

                if (maxAngle - minAngle > 2 * Math.PI) {
                    maxAngle = minAngle + 2 * Math.PI;
                }

                point.shapeArgs = shapeArgs = {
                    x: center[0],
                    y: center[1],
                    r: radius,
                    innerR: innerRadius,
                    start: minAngle,
                    end: maxAngle,
                    rounded: options.rounded
                };
                point.startR = radius; // For PieSeries.animate

                if (graphic) {
                    d = shapeArgs.d;
                    graphic.animate(H.extend({ fill: toColor }, shapeArgs));
                    if (d) {
                        shapeArgs.d = d; // animate alters it
                    }
                } else {
                    point.graphic = graphic = renderer.arc(shapeArgs)
                        .attr({
                            fill: toColor,
                            'sweep-flag': 0
                        })
                        .add(series.group);

                    if (!series.chart.styledMode) {
                        if (options.linecap !== 'square') {
                            graphic.attr({
                                'stroke-linecap': 'round',
                                'stroke-linejoin': 'round'
                            });
                        }
                        graphic.attr({
                            stroke: options.borderColor || 'none',
                            'stroke-width': options.borderWidth || 0
                        });
                    }
                }

                if (graphic) {
                    graphic.addClass(point.getClassName(), true);
                }
            }
        });
    },

    // Extend the pie slice animation by animating from start angle and up.
    animate: function (init) {

        if (!init) {
            this.startAngleRad = this.thresholdAngleRad;
            H.seriesTypes.pie.prototype.animate.call(this, init);
        }
    }
});

/**
 * A `solidgauge` series. If the [type](#series.solidgauge.type) option is not
 * specified, it is inherited from [chart.type](#chart.type).
 *
 *
 * @extends   series,plotOptions.solidgauge
 * @excluding animationLimit, boostThreshold, connectEnds, connectNulls,
 *            cropThreshold, dashStyle, dataParser, dataURL, dial,
 *            findNearestPointBy, getExtremesFromAll, marker, negativeColor,
 *            pointPlacement, pivot, shadow, softThreshold, stack, stacking,
 *            states, step, threshold, turboThreshold, wrap, zoneAxis, zones
 * @product   highcharts
 * @apioption series.solidgauge
 */

/**
 * An array of data points for the series. For the `solidgauge` series
 * type, points can be given in the following ways:
 *
 * 1. An array of numerical values. In this case, the numerical values will be
 *    interpreted as `y` options. Example:
 *    ```js
 *    data: [0, 5, 3, 5]
 *    ```
 *
 * 2. An array of objects with named values. The following snippet shows only a
 *    few settings, see the complete options set below. If the total number of
 *    data points exceeds the series'
 *    [turboThreshold](#series.solidgauge.turboThreshold), this option is not
 *    available.
 *    ```js
 *    data: [{
 *        y: 5,
 *        name: "Point2",
 *        color: "#00FF00"
 *    }, {
 *        y: 7,
 *        name: "Point1",
 *        color: "#FF00FF"
 *    }]
 *    ```
 *
 * The typical gauge only contains a single data value.
 *
 * @sample {highcharts} highcharts/chart/reflow-true/
 *         Numerical values
 * @sample {highcharts} highcharts/series/data-array-of-objects/
 *         Config objects
 *
 * @type      {Array<number|null|*>}
 * @extends   series.gauge.data
 * @product   highcharts
 * @apioption series.solidgauge.data
 */

/**
 * The inner radius of an individual point in a solid gauge. Can be given as a
 * number (pixels) or percentage string.
 *
 * @sample {highcharts} highcharts/plotoptions/solidgauge-radius/
 *         Individual radius and innerRadius
 *
 * @type      {number|string}
 * @since     4.1.6
 * @product   highcharts
 * @apioption series.solidgauge.data.innerRadius
 */

/**
 * The outer radius of an individual point in a solid gauge. Can be
 * given as a number (pixels) or percentage string.
 *
 * @sample {highcharts} highcharts/plotoptions/solidgauge-radius/
 *         Individual radius and innerRadius
 *
 * @type      {number|string}
 * @since     4.1.6
 * @product   highcharts
 * @apioption series.solidgauge.data.radius
 */
