import * as mars3d from "mars3d"

export let map // mars3d.Map三维地图对象

// 需要覆盖config.json中地图属性参数（当前示例框架中自动处理合并）
export const mapOptions = {
  scene: {
    center: { lat: 53.285266, lng: 142.68078, alt: 17309707, heading: 45, pitch: -83 },
    mapMode2D: Cesium.MapMode2D.ROTATE, // 二三维场景切换黑影
    clock: {
      currentTime: "2021-01-01T12:08:20Z",
      multiplier: 60 // 速度
    },
    cameraController: {
      maximumZoomDistance: 9000000000,
      constrainedAxis: false // 解除在南北极区域鼠标操作限制
    }
  },
  control: {
    clockAnimate: true, // 时钟动画控制(左下角)
    timeline: true, // 是否显示时间线控件,
    compass: { top: "10px", left: "5px" }
  }
}

/**
 * 初始化地图业务，生命周期钩子函数（必须）
 * 框架在地图初始化完成后自动调用该函数
 * @param {mars3d.Map} mapInstance 地图对象
 * @returns {void} 无
 */
export function onMounted(mapInstance) {
  map = mapInstance // 记录map
  map.toolbar.style.bottom = "55px" // 修改toolbar控件的样式

  // 创建矢量数据图层
  const graphicLayer = new mars3d.layer.GraphicLayer()
  map.addLayer(graphicLayer)

  const property = getDynamicProperty() // 取数据

  // 视锥体 展示
  const conicSensor = new mars3d.graphic.ConicSensor({
    position: property,
    style: {
      angle: 15,
      length: 2500000,
      color: "rgba(255,0,0,0.4)",
      outlineColor: "rgba(255,255,255,0.9)"
    }
  })
  graphicLayer.addGraphic(conicSensor)
}

/**
 * 释放当前地图业务的生命周期函数
 * @returns {void} 无
 */
export function onUnmounted() {
  map = null
}

function getDynamicProperty() {
  // 该数据是由后端计算返回的轨道信息
  const wxkjx = [
    {
      time: "2021-01-01T12:08:20Z",
      x: -143.774623333805,
      y: 27.7998266828718,
      z: 1118477.29262629
    },
    {
      time: "2021-01-01T12:11:40Z",
      x: -146.56364947549,
      y: 38.8612791867078,
      z: 1121731.48352323
    },
    {
      time: "2021-01-01T12:15:00Z",
      x: -150.074587947037,
      y: 49.8538696199919,
      z: 1125266.75027392
    },
    {
      time: "2021-01-01T12:18:20Z",
      x: -155.164247872234,
      y: 60.7243205344318,
      z: 1128555.88185048
    },
    {
      time: "2021-01-01T12:21:40Z",
      x: -164.565295557077,
      y: 71.3021698947674,
      z: 1131111.78312013
    },
    {
      time: "2021-01-01T12:25:00Z",
      x: 168.08311253827,
      y: 80.6216347342535,
      z: 1132558.81749868
    }
  ]

  const property = new Cesium.SampledPositionProperty()
  property.forwardExtrapolationType = Cesium.ExtrapolationType.HOLD

  for (let z = 0; z < wxkjx.length; z++) {
    const item = wxkjx[z]
    const thisTime = Cesium.JulianDate.fromIso8601(item.time)
    const position = Cesium.Cartesian3.fromDegrees(item.x, item.y, item.z)

    // 添加每一个链接点的信息，到达的时间以及坐标位置
    property.addSample(thisTime, position)
  }
  property.setInterpolationOptions({
    interpolationDegree: 2,
    interpolationAlgorithm: Cesium.LagrangePolynomialApproximation
  })

  return property
}