/**
 * DevExtreme (viz/gauges/base_range_container.js)
 * Version: 17.2.10 (build 18271)
 * Build date: Fri Sep 28 2018
 *
 * Copyright (c) 2012 - 2018 Developer Express Inc. ALL RIGHTS RESERVED
 * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
 */
"use strict";
var iterateUtils = require("../../core/utils/iterator"),
    BaseElement = require("./base_indicators").BaseElement,
    _Number = Number,
    _abs = Math.abs,
    _isString = require("../../core/utils/type").isString,
    _isArray = Array.isArray,
    _isFinite = isFinite,
    _each = iterateUtils.each,
    _map = iterateUtils.map;
var BaseRangeContainer = BaseElement.inherit({
    _init: function() {
        this._root = this._renderer.g().attr({
            "class": "dxg-range-container"
        }).linkOn(this._container, "range-container")
    },
    _dispose: function() {
        this._root.linkOff()
    },
    clean: function() {
        this._root.linkRemove().clear();
        this._options = this.enabled = null;
        return this
    },
    _getRanges: function() {
        var that = this,
            options = that._options,
            translator = that._translator,
            totalStart = translator.getDomain()[0],
            totalEnd = translator.getDomain()[1],
            totalDelta = totalEnd - totalStart,
            isNotEmptySegment = totalDelta >= 0 ? isNotEmptySegmentAsc : isNotEmptySegmentDesc,
            subtractSegment = totalDelta >= 0 ? subtractSegmentAsc : subtractSegmentDesc,
            list = [],
            ranges = [],
            backgroundRanges = [{
                start: totalStart,
                end: totalEnd
            }],
            threshold = _abs(totalDelta) / 1e4,
            palette = that._themeManager.createPalette(options.palette, {
                type: "indicatingSet"
            }),
            backgroundColor = _isString(options.backgroundColor) ? options.backgroundColor : "none",
            width = options.width || {},
            startWidth = _Number(width > 0 ? width : width.start),
            endWidth = _Number(width > 0 ? width : width.end),
            deltaWidth = endWidth - startWidth;
        if (void 0 !== options.ranges && !_isArray(options.ranges)) {
            return null
        }
        if (!(startWidth >= 0 && endWidth >= 0 && startWidth + endWidth > 0)) {
            return null
        }
        list = _map(_isArray(options.ranges) ? options.ranges : [], function(rangeOptions, i) {
            rangeOptions = rangeOptions || {};
            var start = translator.adjust(rangeOptions.startValue),
                end = translator.adjust(rangeOptions.endValue);
            return _isFinite(start) && _isFinite(end) && isNotEmptySegment(start, end, threshold) ? {
                start: start,
                end: end,
                color: rangeOptions.color,
                classIndex: i
            } : null
        });
        _each(list, function(i, item) {
            var paletteColor = palette.getNextColor();
            item.color = _isString(item.color) && item.color || paletteColor || "none";
            item.className = "dxg-range dxg-range-" + item.classIndex;
            delete item.classIndex
        });
        _each(list, function(_, item) {
            var i, ii, sub, subs, range, newRanges = [],
                newBackgroundRanges = [];
            for (i = 0, ii = ranges.length; i < ii; ++i) {
                range = ranges[i];
                subs = subtractSegment(range.start, range.end, item.start, item.end);
                (sub = subs[0]) && (sub.color = range.color) && (sub.className = range.className) && newRanges.push(sub);
                (sub = subs[1]) && (sub.color = range.color) && (sub.className = range.className) && newRanges.push(sub)
            }
            newRanges.push(item);
            ranges = newRanges;
            for (i = 0, ii = backgroundRanges.length; i < ii; ++i) {
                range = backgroundRanges[i];
                subs = subtractSegment(range.start, range.end, item.start, item.end);
                (sub = subs[0]) && newBackgroundRanges.push(sub);
                (sub = subs[1]) && newBackgroundRanges.push(sub)
            }
            backgroundRanges = newBackgroundRanges
        });
        _each(backgroundRanges, function(_, range) {
            range.color = backgroundColor;
            range.className = "dxg-range dxg-background-range";
            ranges.push(range)
        });
        _each(ranges, function(_, range) {
            range.startWidth = (range.start - totalStart) / totalDelta * deltaWidth + startWidth;
            range.endWidth = (range.end - totalStart) / totalDelta * deltaWidth + startWidth
        });
        return ranges
    },
    render: function(options) {
        var that = this;
        that._options = options;
        that._processOptions();
        that._ranges = that._getRanges();
        if (that._ranges) {
            that.enabled = true;
            that._root.linkAppend()
        }
        return that
    },
    resize: function(layout) {
        var that = this;
        that._root.clear();
        if (that._isVisible(layout)) {
            _each(that._ranges, function(_, range) {
                that._createRange(range, layout).attr({
                    fill: range.color,
                    "class": range.className
                }).append(that._root)
            })
        }
        return that
    },
    _processOptions: null,
    _isVisible: null,
    _createRange: null,
    getColorForValue: function(value) {
        var color = null;
        _each(this._ranges, function(_, range) {
            if (range.start <= value && value <= range.end || range.start >= value && value >= range.end) {
                color = range.color;
                return false
            }
        });
        return color
    }
});

function subtractSegmentAsc(segmentStart, segmentEnd, otherStart, otherEnd) {
    var result;
    if (otherStart > segmentStart && otherEnd < segmentEnd) {
        result = [{
            start: segmentStart,
            end: otherStart
        }, {
            start: otherEnd,
            end: segmentEnd
        }]
    } else {
        if (otherStart >= segmentEnd || otherEnd <= segmentStart) {
            result = [{
                start: segmentStart,
                end: segmentEnd
            }]
        } else {
            if (otherStart <= segmentStart && otherEnd >= segmentEnd) {
                result = []
            } else {
                if (otherStart > segmentStart) {
                    result = [{
                        start: segmentStart,
                        end: otherStart
                    }]
                } else {
                    if (otherEnd < segmentEnd) {
                        result = [{
                            start: otherEnd,
                            end: segmentEnd
                        }]
                    }
                }
            }
        }
    }
    return result
}

function subtractSegmentDesc(segmentStart, segmentEnd, otherStart, otherEnd) {
    var result;
    if (otherStart < segmentStart && otherEnd > segmentEnd) {
        result = [{
            start: segmentStart,
            end: otherStart
        }, {
            start: otherEnd,
            end: segmentEnd
        }]
    } else {
        if (otherStart <= segmentEnd || otherEnd >= segmentStart) {
            result = [{
                start: segmentStart,
                end: segmentEnd
            }]
        } else {
            if (otherStart >= segmentStart && otherEnd <= segmentEnd) {
                result = []
            } else {
                if (otherStart < segmentStart) {
                    result = [{
                        start: segmentStart,
                        end: otherStart
                    }]
                } else {
                    if (otherEnd > segmentEnd) {
                        result = [{
                            start: otherEnd,
                            end: segmentEnd
                        }]
                    }
                }
            }
        }
    }
    return result
}

function isNotEmptySegmentAsc(start, end, threshold) {
    return end - start >= threshold
}

function isNotEmptySegmentDesc(start, end, threshold) {
    return start - end >= threshold
}
module.exports = BaseRangeContainer;
