/**
 * Solid angular gauge module
 *
 * (c) 2010-2017 Torstein Honsi
 *
 * License: www.highcharts.com/license
 */
'use strict';
import H from '../parts/Globals.js';
import '../parts/Utilities.js';
import '../parts/Options.js';
import '../parts-more/GaugeSeries.js';

var pInt = H.pInt,
    pick = H.pick,
    each = H.each,
    isNumber = H.isNumber,
    wrap = H.wrap,
    Renderer = H.Renderer,
    colorAxisMethods;

/**
 * Symbol definition of an arc with round edges.
 *
 * @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  {Object} [options] - Additional options, depending on the actual
 *    symbol drawn.
 * @param {boolean} [options.rounded] - Whether to draw rounded edges.
 * @return {Array} 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 = [];

        each(userOptions.dataClasses, 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]
        ];
        each(this.stops, 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 = {
    /**
     * Whether the strokes of the solid gauge should be `round` or `square`.
     *
     * @validvalue ["square", "round"]
     * @type {String}
     * @sample {highcharts} highcharts/demo/gauge-activity/ Rounded gauge
     * @default round
     * @since 4.2.2
     * @product highcharts
     * @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
     */

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

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

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

};


// The solidgauge series type
H.seriesType('solidgauge', 'gauge', solidGaugeOptions, {

    /**
     * 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);


        each(series.points, function (point) {
            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 = renderer.arc(shapeArgs)
                    .addClass(point.getClassName(), true)
                    .attr({
                        fill: toColor,
                        'sweep-flag': 0
                    })
                    .add(series.group);

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

    /**
     * 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).
 *
 *
 * @type      {Object}
 * @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 objects are point
 * configuration objects as seen 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.
 *
 * @type {Array<Object|Number>}
 * @extends series.gauge.data
 * @sample {highcharts} highcharts/chart/reflow-true/
 *         Numerical values
 * @sample {highcharts} highcharts/series/data-array-of-arrays/
 *         Arrays of numeric x and y
 * @sample {highcharts} highcharts/series/data-array-of-arrays-datetime/
 *         Arrays of datetime x and y
 * @sample {highcharts} highcharts/series/data-array-of-name-value/
 *         Arrays of point.name and y
 * @sample {highcharts} highcharts/series/data-array-of-objects/
 *         Config objects
 * @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.
 *
 * @type {Number|String}
 * @sample {highcharts} highcharts/plotoptions/solidgauge-radius/ Individual radius and innerRadius
 * @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.
 *
 * @type {Number|String}
 * @sample {highcharts} highcharts/plotoptions/solidgauge-radius/ Individual radius and innerRadius
 * @since 4.1.6
 * @product highcharts
 * @apioption series.solidgauge.data.radius
 */