/**
 * @license  Highcharts JS v7.1.1 (2019-04-09)
 *
 * Dependency wheel module
 *
 * (c) 2010-2018 Torstein Honsi
 *
 * 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('highcharts/modules/dependency-wheel', ['highcharts', 'highcharts/modules/sankey'], function (Highcharts) {
            factory(Highcharts);
            factory.Highcharts = Highcharts;
            return factory;
        });
    } else {
        factory(typeof Highcharts !== 'undefined' ? Highcharts : undefined);
    }
}(function (Highcharts) {
    var _modules = Highcharts ? Highcharts._modules : {};
    function _registerModule(obj, path, args, fn) {
        if (!obj.hasOwnProperty(path)) {
            obj[path] = fn.apply(null, args);
        }
    }
    _registerModule(_modules, 'modules/dependency-wheel.src.js', [_modules['parts/Globals.js']], function (H) {
        /* *
         * Dependency wheel module
         *
         * (c) 2018-2019 Torstein Honsi
         *
         * License: www.highcharts.com/license
         */



        var base = H.seriesTypes.sankey.prototype;

        /**
         * @private
         * @class
         * @name Highcharts.seriesTypes.dependencywheel
         *
         * @augments Highcharts.seriesTypes.sankey
         */
        H.seriesType(
            'dependencywheel',
            'sankey',
            /**
             * A dependency wheel chart is a type of flow diagram, where all nodes are
             * laid out in a circle, and the flow between the are drawn as link bands.
             *
             * @sample highcharts/demo/dependency-wheel/
             *         Dependency wheel
             *
             * @extends      plotOptions.sankey
             * @since        7.1.0
             * @product      highcharts
             * @optionparent plotOptions.dependencywheel
             */
            {
                /**
                 * The center of the wheel relative to the plot area. Can be
                 * percentages or pixel values. The default behaviour is to
                 * center the wheel inside the plot area.
                 *
                 * @type    {Array<number|string|null>}
                 * @default [null, null]
                 * @product highcharts
                 */
                center: [null, null],
                curveFactor: 0.6,

                /**
                 * The start angle of the dependency wheel, in degrees where 0 is up.
                 */
                startAngle: 0
            }, {
                orderNodes: false,
                getCenter: H.seriesTypes.pie.prototype.getCenter,

                // Dependency wheel has only one column, it runs along the perimeter
                createNodeColumns: function () {
                    var columns = [this.createNodeColumn()];
                    this.nodes.forEach(function (node) {
                        node.column = 0;
                        columns[0].push(node);
                    });
                    return columns;
                },

                // Translate from vertical pixels to perimeter
                getNodePadding: function () {
                    return this.options.nodePadding / Math.PI;
                },

                createNode: function (id) {
                    var node = base.createNode.call(this, id);
                    node.index = this.nodes.length - 1;

                    // Return the sum of incoming and outgoing links
                    node.getSum = function () {
                        return node.linksFrom.concat(node.linksTo)
                            .reduce(function (acc, link) {
                                return acc + link.weight;
                            }, 0);
                    };

                    // Get the offset in weight values of a point/link.
                    node.offset = function (point) {

                        var offset = 0,
                            i,
                            links = node.linksFrom.concat(node.linksTo),
                            sliced;

                        function otherNode(link) {
                            if (link.fromNode === node) {
                                return link.toNode;
                            }
                            return link.fromNode;
                        }

                        // Sort and slice the links to avoid links going out of each
                        // node crossing each other.
                        links.sort(function (a, b) {
                            return otherNode(a).index - otherNode(b).index;
                        });
                        for (i = 0; i < links.length; i++) {
                            if (otherNode(links[i]).index > node.index) {
                                links = links.slice(0, i).reverse().concat(
                                    links.slice(i).reverse()
                                );
                                sliced = true;
                                break;
                            }
                        }
                        if (!sliced) {
                            links.reverse();
                        }

                        for (i = 0; i < links.length; i++) {
                            if (links[i] === point) {
                                return offset;
                            }
                            offset += links[i].weight;
                        }
                    };

                    return node;
                },

                // @todo: Override the refactored sankey translateLink and translateNode
                // functions instead of the whole translate function
                translate: function () {

                    var options = this.options,
                        factor = 2 * Math.PI /
                            (this.chart.plotHeight + this.getNodePadding()),
                        center = this.getCenter(),
                        startAngle = (options.startAngle - 90) * H.deg2rad;

                    base.translate.call(this);

                    this.nodeColumns[0].forEach(function (node) {
                        var shapeArgs = node.shapeArgs,
                            centerX = center[0],
                            centerY = center[1],
                            r = center[2] / 2,
                            innerR = r - options.nodeWidth,
                            start = startAngle + factor * shapeArgs.y,
                            end = startAngle +
                                factor * (shapeArgs.y + shapeArgs.height);

                        // Middle angle
                        node.angle = start + (end - start) / 2;

                        node.shapeType = 'arc';
                        node.shapeArgs = {
                            x: centerX,
                            y: centerY,
                            r: r,
                            innerR: innerR,
                            start: start,
                            end: end
                        };

                        node.dlBox = {
                            x: centerX + Math.cos((start + end) / 2) * (r + innerR) / 2,
                            y: centerY + Math.sin((start + end) / 2) * (r + innerR) / 2,
                            width: 1,
                            height: 1
                        };

                        // Draw the links from this node
                        node.linksFrom.forEach(function (point) {
                            var distance;
                            var corners = point.linkBase.map(function (top, i) {
                                var angle = factor * top,
                                    x = Math.cos(startAngle + angle) * (innerR + 1),
                                    y = Math.sin(startAngle + angle) * (innerR + 1),
                                    curveFactor = options.curveFactor;

                                // The distance between the from and to node along the
                                // perimeter. This affect how curved the link is, so
                                // that links between neighbours don't extend too far
                                // towards the center.
                                distance = Math.abs(
                                    point.linkBase[3 - i] * factor - angle
                                );
                                if (distance > Math.PI) {
                                    distance = 2 * Math.PI - distance;
                                }
                                distance = distance * innerR;
                                if (distance < innerR) {
                                    curveFactor *= (distance / innerR);
                                }


                                return {
                                    x: centerX + x,
                                    y: centerY + y,
                                    cpX: centerX + (1 - curveFactor) * x,
                                    cpY: centerY + (1 - curveFactor) * y
                                };
                            });

                            point.shapeArgs = {
                                d: [
                                    'M',
                                    corners[0].x, corners[0].y,
                                    'A',
                                    innerR, innerR,
                                    0,
                                    0, // long arc
                                    1, // clockwise
                                    corners[1].x, corners[1].y,
                                    'C',
                                    corners[1].cpX, corners[1].cpY,
                                    corners[2].cpX, corners[2].cpY,
                                    corners[2].x, corners[2].y,
                                    'A',
                                    innerR, innerR,
                                    0,
                                    0,
                                    1,
                                    corners[3].x, corners[3].y,
                                    'C',
                                    corners[3].cpX, corners[3].cpY,
                                    corners[0].cpX, corners[0].cpY,
                                    corners[0].x, corners[0].y
                                ]
                            };

                        });

                    });
                },

                animate: function (init) {
                    if (!init) {
                        var duration = H.animObject(this.options.animation).duration,
                            step = (duration / 2) / this.nodes.length;
                        this.nodes.forEach(function (point, i) {
                            var graphic = point.graphic;
                            if (graphic) {
                                graphic.attr({ opacity: 0 });
                                setTimeout(function () {
                                    graphic.animate(
                                        { opacity: 1 },
                                        { duration: step }
                                    );
                                }, step * i);
                            }
                        }, this);
                        this.points.forEach(function (point) {
                            var graphic = point.graphic;
                            if (!point.isNode && graphic) {
                                graphic.attr({ opacity: 0 })
                                    .animate({
                                        opacity: 1
                                    }, this.options.animation);
                            }
                        }, this);

                        this.animate = null;
                    }
                }
            },

            // Point class
            {
                setState: H.NodesMixin.setNodeState,
                // Return a text path that the data label uses
                getDataLabelPath: function (label) {
                    var renderer = this.series.chart.renderer,
                        shapeArgs = this.shapeArgs,
                        upperHalf = this.angle < 0 || this.angle > Math.PI,
                        start = shapeArgs.start,
                        end = shapeArgs.end;

                    if (!this.dataLabelPath) {
                        this.dataLabelPath = renderer
                            .arc({ open: true })

                            // Add it inside the data label group so it gets destroyed
                            // with the label
                            .add(label);
                    }

                    this.dataLabelPath.attr({
                        x: shapeArgs.x,
                        y: shapeArgs.y,
                        r: shapeArgs.r + (this.dataLabel.options.distance || 0),
                        start: (upperHalf ? start : end),
                        end: (upperHalf ? end : start),
                        clockwise: +upperHalf
                    });

                    return this.dataLabelPath;
                },
                isValid: function () {
                    // No null points here
                    return true;
                }
            }
        );

        /**
         * A `dependencywheel` series. If the [type](#series.dependencywheel.type)
         * option is not specified, it is inherited from [chart.type](#chart.type).
         *
         * @extends   series,plotOptions.dependencywheel
         * @product   highcharts
         * @apioption series.dependencywheel
         */

        /**
         * A collection of options for the individual nodes. The nodes in a dependency
         * diagram are auto-generated instances of `Highcharts.Point`, but options can
         * be applied here and linked by the `id`.
         *
         * @extends   series.sankey.nodes
         * @type      {Array<*>}
         * @product   highcharts
         * @excluding offset
         * @apioption series.dependencywheel.nodes
         */

        /**
         * An array of data points for the series. For the `dependencywheel` series
         * type, points can be given in the following way:
         *
         * 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.area.turboThreshold),
         * this option is not available.
         *
         *  ```js
         *     data: [{
         *         from: 'Category1',
         *         to: 'Category2',
         *         weight: 2
         *     }, {
         *         from: 'Category1',
         *         to: 'Category3',
         *         weight: 5
         *     }]
         *  ```
         *
         * @type      {Array<*>}
         * @extends   series.sankey.data
         * @product   highcharts
         * @excluding outgoing
         * @apioption series.dependencywheel.data
         */

    });
    _registerModule(_modules, 'masters/modules/dependency-wheel.src.js', [], function () {


    });
}));
