import * as Cesium from 'cesium'
import aircraftGltf from '@/assets/gltf/aircraft.gltf'
import CreateFrustum from '@/utils/cesium/frustum/CreateFrustum'

export function useTaskViewInfo (viewer, wsInfo, removeEntitys) {
  const newViewer = unref(viewer)

  let viewInfoFrustum
  // 设置视椎
  const setCreateFrustum = (host) => {
    if (!host) return
    viewInfoFrustum?.clear()

    const attitude_head = 180 + host.attitude_head
    const gimbal_pitch = 90 - Number(host?.payloads[0]?.gimbal_pitch) || 0

    viewInfoFrustum = new CreateFrustum(newViewer, {
      position: {
        longitude: host.longitude,
        latitude: host.latitude,
        altitude: host.height,
      },
      width: 30,
      height: 30,
      fov: 20.0,
      near: 3.0,
      far: 250.0,
      roll: gimbal_pitch,
      pitch: 0,
      heading: attitude_head,
    })
  }

  function setAircraftGltf () {
    const host = deviceOsdInfo.value?.data?.host
    const aircraftEntity = newViewer.entities.getById('aircraftGltf')
    const position = Cesium.Cartesian3.fromDegrees(host.longitude, host.latitude, host.height)
    if (aircraftEntity) {
      aircraftEntity.position = new Cesium.ConstantPositionProperty(position)
      return
    }

    newViewer.entities.add({
      id: 'aircraftGltf',
      position,
      model: {
        uri: aircraftGltf, // 或 .glb
        scale: 1.0, // 缩放比例
        minimumPixelSize: 64, // 最小像素尺寸（保证模型远处可见）
        maximumScale: 128, // 最大缩放（可选）
      },
    })
  }

  // 视椎加载处理
  const deviceOsdInfo = computed(() => wsInfo.value?.device_osd)

  watch(deviceOsdInfo, () => {
    const host = deviceOsdInfo.value?.data?.host

    if ([14, 0].includes(host.mode_code)) {
      mapEntityRemove()
      return
    }

    setCreateFrustum(host)
    setAircraftGltf()
  })

  const mapEntityRemove = () => {
    viewInfoFrustum?.clear()

    newViewer.entities.removeById('aircraftGltf')

    removeEntitys && removeEntitys()
  }

  onUnmounted(() => {
    mapEntityRemove()
  })
}