/* 引入Cesium */
// import * as Cesium from 'Cesium';

import {
	setSessionid
} from "./common/common.js";

/**
 *流动纹理
 */
import CircleMaterialProperty from "./CircleObject/CircleMaterialProperty.js";
import CircleRippleMaterialProperty from "./CircleObject/CircleRippleMaterialProperty.js";

/**
 * 墙体对象
 */
class CircleObject {
	/**
	 * 默认初始化
	 */
	constructor(viewer) {
		if (!viewer) throw new Cesium.DeveloperError('no viewer object!');
		this._viewer = viewer;
	}
}

/**
 * 通用对外公开函数 
 */
Object.assign(CircleObject.prototype, /** @lends CircleObject.prototype */ {

	/**
	 * @description 绘制动态圆
	 * @param {String} centerPoint 圆心坐标
	 * @param {String} radius 圆半径
	 * @param {Object} [options] 圆的样式，具有以下属性:
	 * @param {Number} [options.id] 用于移除
	 * @param {Number} [options.clampToGround=true] 是否贴地
	 * @param {String} [options.color="#FF0000"] 指定圆的颜色

	 * @param {String} [options.outlineColor="#FFFF00"] 指定点轮廓的颜色
	 * @param {Number} [options.outlineWidth=0] 指定点轮廓的宽度
	 * 
	 * @param {Number} [options.CircleType='ColorCircle'] ColorCircle / DynamicCircle
	 * @param {Number} [options.duration=3000] 持续时间 毫秒，越小越快
	 * @param {Number} [options.count=1] 重复次数
	 */
	drawCircle: function(centerPoint, radius, options) {
		return new Promise((resolve, reject) => {
			let _self = this;
			let viewer = this._viewer;

			if (!Cesium.defined(centerPoint)) {
				throw new Cesium.DeveloperError("centerPoint is required.");
			}

			if (!Cesium.defined(radius)) {
				throw new Cesium.DeveloperError("radius is required.");
			}

			//坐标位置
			let position;
			if (centerPoint instanceof Cesium.Cartesian3) {
				position = centerPoint;
			} else {
				position = Cesium.Cartesian3.fromDegrees(centerPoint[0], centerPoint[1], centerPoint[2] || 0);
			}

			//半径
			if (typeof radius === 'number' && radius > 0) {
				radius = radius;
			} else {
				radius = 100
			}

			options = options || {};
			options.id = options.id || setSessionid();
			options.clampToGround = Cesium.defaultValue(options.clampToGround, true);
			options.CircleType = Cesium.defaultValue(options.CircleType, 'ColorCircle');

			options.duration = Cesium.defaultValue(options.duration, 3000);
			options.count = Cesium.defaultValue(options.count, 1);

			if (options.color) {
				if (options.color instanceof Array) {
					options.color = new Cesium.Color(options.color[0] / 255, options.color[1] / 255, options.color[2] / 255, options.color[3]);
				} else if (typeof(options.color) === 'string') {
					options.color = new Cesium.Color.fromCssColorString(options.color);
				} else {
					options.color = new Cesium.Color.fromCssColorString("#FFFF00");
				}
			}

			if (options.outlineColor) {
				if (options.outlineColor instanceof Array) {
					options.outlineColor = new Cesium.Color(options.outlineColor[0] / 255, options.outlineColor[1] / 255, options.outlineColor[2] / 255, options.outlineColor[3]);
				} else if (typeof(options.outlineColor) === 'string') {
					options.outlineColor = new Cesium.Color.fromCssColorString(options.outlineColor);
				} else {
					options.outlineColor = new Cesium.Color.fromCssColorString("#FFFF00");
				}
			}
			options.outlineWidth = Cesium.defaultValue(options.outlineWidth, 0);


			/* 创建面材质 */
			let polygonMaterial = options.color;
			/* 创建线材质 */
			// let outlineMaterial = new Cesium.PolylineDashMaterialProperty({//虚线
			// 	dashLength: 16,
			// 	color: options.outlineColor
			// });
			let outlineMaterial = options.outlineColor;

			if (options.CircleType === 'DynamicCircle') {
				// polygonMaterial = new CircleMaterialProperty({
				// 	viewer: viewer,
				// 	duration: options.duration,
				// 	color: options.color,
				// 	count: options.count,
				// });

				polygonMaterial = new Cesium.CircleRippleMaterialProperty({
					color: options.color,
					speed: options.duration/1000,
					count: options.count,
					gradient: 0.2
				})
			}

			let entity = new Cesium.Entity({
				id: options.id,
				//位置
				position: position,
				//椭圆
				ellipse: {
					//半短轴（画圆：半短轴和半长轴一致即可）
					semiMinorAxis: radius,
					// 半长轴
					semiMajorAxis: radius,
					// 填充色
					material: polygonMaterial,
					// 是否有边框
					outline: true,
					// 边框颜色
					outlineColor: options.outlineColor,
					// 边框宽度
					outlineWidth: options.outlineWidth
				}
			});

			let flyEntity = viewer.entities.add(entity);

			resolve(entity, flyEntity)

		});
	},
});

export default CircleObject;