//视域分析
var viewshed = null;
var isFirstAddViewshed = true;
var SYFX_visible_color, SYFX_notVisible_color;

function addViewshed(height) {
    if (isFirstAddViewshed) {
        isFirstAddViewshed = false;
    } else {
        clearnViewshed();
    }
    setShadows('open');
    viewshed = sgworld.Analysis.create3DViewshed({
        name: 'Viewshed On Frederick',
        height: height === undefined ? 0 : height,
        color: {
            Back: SYFX_notVisible_color,
            Fore: SYFX_visible_color,
            default: window.shadowMap_color
        }
    });
}

//删除视域分析
function clearnViewshed() {
    if (viewshed) {
        viewshed.close();
        viewshed = null;
    } else if (window.parent.viewshed) {
        window.parent.viewshed.close();
        window.parent.viewshed = null;
    }
    setShadows('close');
}

var default_shadows_value;

function setShadows(type) {
    switch (type) {
        case 'open':
            default_shadows_value = sgworld._Viewer.shadows;
            if (!default_shadows_value) {
                window.shadows = true;
            }
            break;
        case 'close':
            if (default_shadows_value !== undefined && sgworld._Viewer.shadows !== default_shadows_value) {
                sgworld._Viewer.shadows = !!default_shadows_value;
                window.shadows = !!default_shadows_value;
            }
            default_shadows_value = undefined;
            break;
    }
}


var default_depthTestAgainstTerrain_value;

function setDepthTest(type) {
    switch (type) {
        case 'open':
            default_depthTestAgainstTerrain_value = Viewer.scene.globe.depthTestAgainstTerrain;
            if (!default_depthTestAgainstTerrain_value) {
                Viewer.scene.globe.depthTestAgainstTerrain = true;
                window.depth = true;
            }
            break;
        case 'close':
            if (Viewer.scene.globe.depthTestAgainstTerrain !== default_depthTestAgainstTerrain_value) {
                Viewer.scene.globe.depthTestAgainstTerrain = default_depthTestAgainstTerrain_value;
                window.depth = default_depthTestAgainstTerrain_value;
            }
            default_depthTestAgainstTerrain_value = undefined;
            break;
    }
}

function fnLayerHauto(type, h) {
    //判断该类型弹出来是否存在
    autoH = true;
    var $layer = $('#layui-layer' + type, document.parent);
    if (!type || $layer.length == 0) return;

    $layer.css({
        'height': h + 'px','top': 'unset','bottom': '0px','border-radius': '13px 13px 0px 0px'
    });
    $layer.find('iframe').css({'height': h - 40 + 'px'});
    $layer.find('iframe').contents().find('body').css({
        'height': h - 40 + 'px',
        'overflow': 'hidden',
    });
    $layer.find('iframe')[0].contentWindow.scrollStart ? $layer.find('iframe')[0].contentWindow.scrollStart() : '';
}

function getElevationTool() {
    !window._ElevationTool && (window._ElevationTool = new ElevationTool());
    return window._ElevationTool;
}

//等高线和坡度图工具
let ElevationTool = function () {
    function _() {
        this.contourUniforms = undefined;
        this.shadingUniforms = undefined;
        this.min = {
            'elevation': 10,
            'slope': 10
        };
        this.max = {
            'elevation': 5000,
            'slope': 90
        };
        this.width = 2;
        this.spacing = 150;
        this.tf = false;
        this.contourColor = undefined;
        this.type = 'none';
        this.Contour = undefined;
        this.colorArr = ['#0b0b88', '#2747E0', '#D33B7D', '#D33038', '#FF9742', '#ffd700', '#bbff00'];
        this.startColor = '#0b0b88';
        this.endColor = '#bbff00';
    }

    _.prototype.render = function () {
        this.Contour = sgworld.Analysis.createElevationContour(this.tf, this.type, {
            colorArr: this.colorArr,
            min: this.min[this.type],
            max: this.max[this.type],
            width: this.width,
            spacing: this.spacing,
            lineColor: this.contourColor
        });
        this.shadingUniforms = this.Contour.item.shadingUniforms;
        this.contourUniforms = this.Contour.item.contourUniforms;
    };

    _.prototype.setContourColor = function (color) {
        this.contourColor = color;
        this.Contour && this.Contour.setMaterialColor(this.contourColor);
    };

    //等高线宽
    _.prototype.setWidth = function (num) {
        this.width = num;
        this.Contour && this.Contour.setWidth(this.width);
    };

    //等高线间距
    _.prototype.setSpacing = function (num) {
        this.spacing = num;
        this.Contour && this.Contour.setSpacing(this.spacing);
    };

    //起始颜色
    _.prototype.setStartColor = function (color) {
        this.startColor = color;
        this.colorArr = sgworld.Core.gradientColor(this.startColor, this.endColor, 7);
        this.render();
    };

    //终止颜色
    _.prototype.setEndColor = function (color) {
        this.endColor = color;
        this.colorArr = sgworld.Core.gradientColor(this.startColor, this.endColor, 7);
        this.render();
    };

    //最小值
    _.prototype.setMin = function (num) {
        this.min[this.type] = num;
        if (this.type === 'elevation') {
            this.shadingUniforms.minimumHeight = this.min[this.type];
        } else {
            this.render();
        }
    };

    //最大值
    _.prototype.setMax = function (num) {
        this.max[this.type] = num;
        if (this.type === 'elevation') {
            this.shadingUniforms.maximumHeight = this.max[this.type];
        } else {
            this.render();
        }
    };

    //最大值
    _.prototype.reset = function () {
        this.colorArr = ['#0b0b88', '#2747E0', '#D33B7D', '#D33038', '#FF9742', '#ffd700', '#bbff00'];
        this.render();
    };

    return _;
}();