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import { onMounted, onUnmounted, ref } from "vue";
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import { Cartesian3, Color, PolylineGraphics, Viewer } from 'cesium';
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import { DRAW_STATUS, RectGauger, } from "cesium-pocket/gauger";
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import { ElButton } from 'element-plus'
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const rootContainer: any = ref(null);
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const viewer = ref<Viewer | null>(null)
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const status = ref(null)
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let rectGauger: any = null
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onMounted(() => {
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  viewer.value = //你获取的viewer
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  init()
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});
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onUnmounted(() => {
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  if (viewer.value && !viewer.value.isDestroyed()) {
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    viewer.value.destroy();
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    viewer.value = null;
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  }
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});
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const isBtn1Disabled = () => {
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  return rectGauger != null && status.value != DRAW_STATUS.STOPED
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}
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const isBtn2Disabled = () => {
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  return status.value != DRAW_STATUS.DRAWABLE && status.value != DRAW_STATUS.DELETABLE
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}
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const isBtn4Disabled = () => {
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  return status.value != DRAW_STATUS.DRAWABLE && status.value != DRAW_STATUS.EDITABLE && status.value != DRAW_STATUS.DELETABLE
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}
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const init = () => {
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  let polylineObj: PolylineGraphics.ConstructorOptions = {
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    positions: [new Cartesian3(), new Cartesian3()],
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    width: 2,
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    material: Color.ORANGERED,
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    clampToGround: true
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  }
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  let polygonObj = {
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    hierarchy: [new Cartesian3(), new Cartesian3(), new Cartesian3()],
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    material: Color.ORANGERED.withAlpha(0.5),
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    outline: false,
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  }
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  let options = {
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    polyline: polylineObj,
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    polygon: polygonObj
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  }
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  rectGauger = new RectGauger(viewer.value as Viewer, options)
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}
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const start = () => {
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  rectGauger.start()
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  status.value = rectGauger.getStatus()
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}
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const drawPolygonEdit = () => {
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  rectGauger.setEditStatus()
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  status.value = rectGauger.getStatus()
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}
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const drawPolygonRemove = () => {
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  rectGauger.clearAll()
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  status.value = rectGauger.getStatus()
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  init()
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}

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.root-container {
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   position: relative;
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   width: 100wh;
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   height: 100vh;
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   overflow: hidden;
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 }
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 .left-top-plugin {
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   position: absolute;
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   top: 20px;
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   left: 10px;
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   z-index: 10;
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 }