/**
 * @license Highcharts JS v6.0.3 (2017-11-14)
 *
 * (c) 2009-2017 Torstein Honsi
 *
 * 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) {
        /**
         * (c) 2009-2017 Torstein Honsi
         *
         * License: www.highcharts.com/license
         */

        var pick = H.pick,
            wrap = H.wrap,
            each = H.each,
            extend = H.extend,
            isArray = H.isArray,
            fireEvent = H.fireEvent,
            Axis = H.Axis,
            Series = H.Series;

        function stripArguments() {
            return Array.prototype.slice.call(arguments, 1);
        }

        extend(Axis.prototype, {
            isInBreak: function(brk, val) {
                var ret,
                    repeat = brk.repeat || Infinity,
                    from = brk.from,
                    length = brk.to - brk.from,
                    test = (val >= from ? (val - from) % repeat : repeat - ((from - val) % repeat));

                if (!brk.inclusive) {
                    ret = test < length && test !== 0;
                } else {
                    ret = test <= length;
                }
                return ret;
            },

            isInAnyBreak: function(val, testKeep) {

                var breaks = this.options.breaks,
                    i = breaks && breaks.length,
                    inbrk,
                    keep,
                    ret;


                if (i) {

                    while (i--) {
                        if (this.isInBreak(breaks[i], val)) {
                            inbrk = true;
                            if (!keep) {
                                keep = pick(breaks[i].showPoints, this.isXAxis ? false : true);
                            }
                        }
                    }

                    if (inbrk && testKeep) {
                        ret = inbrk && !keep;
                    } else {
                        ret = inbrk;
                    }
                }
                return ret;
            }
        });

        wrap(Axis.prototype, 'setTickPositions', function(proceed) {
            proceed.apply(this, Array.prototype.slice.call(arguments, 1));

            if (this.options.breaks) {
                var axis = this,
                    tickPositions = this.tickPositions,
                    info = this.tickPositions.info,
                    newPositions = [],
                    i;

                for (i = 0; i < tickPositions.length; i++) {
                    if (!axis.isInAnyBreak(tickPositions[i])) {
                        newPositions.push(tickPositions[i]);
                    }
                }

                this.tickPositions = newPositions;
                this.tickPositions.info = info;
            }
        });

        wrap(Axis.prototype, 'init', function(proceed, chart, userOptions) {
            var axis = this,
                breaks;
            // Force Axis to be not-ordinal when breaks are defined
            if (userOptions.breaks && userOptions.breaks.length) {
                userOptions.ordinal = false;
            }
            proceed.call(this, chart, userOptions);
            breaks = this.options.breaks;
            axis.isBroken = (isArray(breaks) && !!breaks.length);
            if (axis.isBroken) {
                axis.val2lin = function(val) {
                    var nval = val,
                        brk,
                        i;

                    for (i = 0; i < axis.breakArray.length; i++) {
                        brk = axis.breakArray[i];
                        if (brk.to <= val) {
                            nval -= brk.len;
                        } else if (brk.from >= val) {
                            break;
                        } else if (axis.isInBreak(brk, val)) {
                            nval -= (val - brk.from);
                            break;
                        }
                    }

                    return nval;
                };

                axis.lin2val = function(val) {
                    var nval = val,
                        brk,
                        i;

                    for (i = 0; i < axis.breakArray.length; i++) {
                        brk = axis.breakArray[i];
                        if (brk.from >= nval) {
                            break;
                        } else if (brk.to < nval) {
                            nval += brk.len;
                        } else if (axis.isInBreak(brk, nval)) {
                            nval += brk.len;
                        }
                    }
                    return nval;
                };

                axis.setExtremes = function(newMin, newMax, redraw, animation, eventArguments) {
                    // If trying to set extremes inside a break, extend it to before and after the break ( #3857 )
                    while (this.isInAnyBreak(newMin)) {
                        newMin -= this.closestPointRange;
                    }
                    while (this.isInAnyBreak(newMax)) {
                        newMax -= this.closestPointRange;
                    }
                    Axis.prototype.setExtremes.call(this, newMin, newMax, redraw, animation, eventArguments);
                };

                axis.setAxisTranslation = function(saveOld) {
                    Axis.prototype.setAxisTranslation.call(this, saveOld);

                    var breaks = axis.options.breaks,
                        breakArrayT = [], // Temporary one
                        breakArray = [],
                        length = 0,
                        inBrk,
                        repeat,
                        min = axis.userMin || axis.min,
                        max = axis.userMax || axis.max,
                        pointRangePadding = pick(axis.pointRangePadding, 0),
                        start,
                        i;

                    // Min & max check (#4247)
                    each(breaks, function(brk) {
                        repeat = brk.repeat || Infinity;
                        if (axis.isInBreak(brk, min)) {
                            min += (brk.to % repeat) - (min % repeat);
                        }
                        if (axis.isInBreak(brk, max)) {
                            max -= (max % repeat) - (brk.from % repeat);
                        }
                    });

                    // Construct an array holding all breaks in the axis
                    each(breaks, function(brk) {
                        start = brk.from;
                        repeat = brk.repeat || Infinity;

                        while (start - repeat > min) {
                            start -= repeat;
                        }
                        while (start < min) {
                            start += repeat;
                        }

                        for (i = start; i < max; i += repeat) {
                            breakArrayT.push({
                                value: i,
                                move: 'in'
                            });
                            breakArrayT.push({
                                value: i + (brk.to - brk.from),
                                move: 'out',
                                size: brk.breakSize
                            });
                        }
                    });

                    breakArrayT.sort(function(a, b) {
                        var ret;
                        if (a.value === b.value) {
                            ret = (a.move === 'in' ? 0 : 1) - (b.move === 'in' ? 0 : 1);
                        } else {
                            ret = a.value - b.value;
                        }
                        return ret;
                    });

                    // Simplify the breaks
                    inBrk = 0;
                    start = min;

                    each(breakArrayT, function(brk) {
                        inBrk += (brk.move === 'in' ? 1 : -1);

                        if (inBrk === 1 && brk.move === 'in') {
                            start = brk.value;
                        }
                        if (inBrk === 0) {
                            breakArray.push({
                                from: start,
                                to: brk.value,
                                len: brk.value - start - (brk.size || 0)
                            });
                            length += brk.value - start - (brk.size || 0);
                        }
                    });

                    axis.breakArray = breakArray;

                    // Used with staticScale, and below, the actual axis length when
                    // breaks are substracted.
                    axis.unitLength = max - min - length + pointRangePadding;

                    fireEvent(axis, 'afterBreaks');

                    if (axis.options.staticScale) {
                        axis.transA = axis.options.staticScale;
                    } else if (axis.unitLength) {
                        axis.transA *= (max - axis.min + pointRangePadding) /
                            axis.unitLength;
                    }

                    if (pointRangePadding) {
                        axis.minPixelPadding = axis.transA * axis.minPointOffset;
                    }

                    axis.min = min;
                    axis.max = max;
                };
            }
        });

        wrap(Series.prototype, 'generatePoints', function(proceed) {

            proceed.apply(this, stripArguments(arguments));

            var series = this,
                xAxis = series.xAxis,
                yAxis = series.yAxis,
                points = series.points,
                point,
                i = points.length,
                connectNulls = series.options.connectNulls,
                nullGap;


            if (xAxis && yAxis && (xAxis.options.breaks || yAxis.options.breaks)) {
                while (i--) {
                    point = points[i];

                    nullGap = point.y === null && connectNulls === false; // respect nulls inside the break (#4275)
                    if (!nullGap && (xAxis.isInAnyBreak(point.x, true) || yAxis.isInAnyBreak(point.y, true))) {
                        points.splice(i, 1);
                        if (this.data[i]) {
                            this.data[i].destroyElements(); // removes the graphics for this point if they exist
                        }
                    }
                }
            }

        });

        function drawPointsWrapped(proceed) {
            proceed.apply(this);
            this.drawBreaks(this.xAxis, ['x']);
            this.drawBreaks(this.yAxis, pick(this.pointArrayMap, ['y']));
        }

        H.Series.prototype.drawBreaks = function(axis, keys) {
            var series = this,
                points = series.points,
                breaks,
                threshold,
                eventName,
                y;

            if (!axis) {
                return; // #5950
            }

            each(keys, function(key) {
                breaks = axis.breakArray || [];
                threshold = axis.isXAxis ? axis.min : pick(series.options.threshold, axis.min);
                each(points, function(point) {
                    y = pick(point['stack' + key.toUpperCase()], point[key]);
                    each(breaks, function(brk) {
                        eventName = false;

                        if ((threshold < brk.from && y > brk.to) || (threshold > brk.from && y < brk.from)) {
                            eventName = 'pointBreak';
                        } else if ((threshold < brk.from && y > brk.from && y < brk.to) || (threshold > brk.from && y > brk.to && y < brk.from)) { // point falls inside the break
                            eventName = 'pointInBreak';
                        }
                        if (eventName) {
                            fireEvent(axis, eventName, {
                                point: point,
                                brk: brk
                            });
                        }
                    });
                });
            });
        };


        /**
         * Extend getGraphPath by identifying gaps in the data so that we can draw a gap
         * in the line or area. This was moved from ordinal axis module to broken axis
         * module as of #5045.
         */
        H.Series.prototype.gappedPath = function() {
            var gapSize = this.options.gapSize,
                points = this.points.slice(),
                i = points.length - 1,
                yAxis = this.yAxis,
                xRange,
                stack;

            /**
             * Defines when to display a gap in the graph, together with the `gapUnit`
             * option.
             * 
             * When the `gapUnit` is `relative` (default), a gap size of 5 means
             * that if the distance between two points is greater than five times
             * that of the two closest points, the graph will be broken.
             *
             * When the `gapUnit` is `value`, the gap is based on absolute axis values,
             * which on a datetime axis is milliseconds.
             * 
             * In practice, this option is most often used to visualize gaps in
             * time series. In a stock chart, intraday data is available for daytime
             * hours, while gaps will appear in nights and weekends.
             * 
             * @type {Number}
             * @see [xAxis.breaks](#xAxis.breaks)
             * @sample {highstock} stock/plotoptions/series-gapsize/
             *         Setting the gap size to 2 introduces gaps for weekends in daily
             *         datasets.
             * @default 0
             * @product highstock
             * @apioption plotOptions.series.gapSize
             */

            /**
             * Together with `gapSize`, this option defines where to draw gaps in the 
             * graph.
             *
             * @type {String}
             * @see [gapSize](plotOptions.series.gapSize)
             * @default relative
             * @validvalue ["relative", "value"]
             * @since 5.0.13
             * @product highstock
             * @apioption plotOptions.series.gapUnit
             */

            if (gapSize && i > 0) { // #5008

                // Gap unit is relative
                if (this.options.gapUnit !== 'value') {
                    gapSize *= this.closestPointRange;
                }

                // extension for ordinal breaks
                while (i--) {
                    if (points[i + 1].x - points[i].x > gapSize) {
                        xRange = (points[i].x + points[i + 1].x) / 2;

                        points.splice( // insert after this one
                            i + 1,
                            0, {
                                isNull: true,
                                x: xRange
                            }
                        );

                        // For stacked chart generate empty stack items, #6546
                        if (this.options.stacking) {
                            stack = yAxis.stacks[this.stackKey][xRange] = new H.StackItem(
                                yAxis,
                                yAxis.options.stackLabels,
                                false,
                                xRange,
                                this.stack
                            );
                            stack.total = 0;
                        }
                    }
                }
            }

            // Call base method
            return this.getGraphPath(points);
        };

        wrap(H.seriesTypes.column.prototype, 'drawPoints', drawPointsWrapped);
        wrap(H.Series.prototype, 'drawPoints', drawPointsWrapped);

    }(Highcharts));
}));
