import * as Cesium from 'cesium'
/**
 * 地图事件 Hook
 * @param {Cesium.Viewer} viewer - Cesium 实例
 * @param {Object} options - 配置选项
 * @param {Function} options.onEventClick - 点击事件的回调
 */
export function useMapEvents (viewer, options = {}) {
  const { onEventClick } = options
  let handler = null

  // 查找特定类型的实体
  const findEntityByType = (entities, type) => {
    return entities.find(entity =>
      entity?.properties?.customData?._value?.data?.type === type
    )
  }

  // 左键单机事件
  const singleMachineEvent = async click => {
    let clickedEntities = viewer.scene.drillPick(click.position).map(item => item.id)
    if (!clickedEntities.length) return

    const currentEntity = findEntityByType(clickedEntities, 'device') ||
      findEntityByType(clickedEntities, 'event')

    currentEntity = deviceAggregationFind || deviceFind || eventFind

    if (currentEntity) {
      onEventClick?.(currentEntity)
    }
  }

  const handlerInit = () => {
    if (handler) return

    handler = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas)
    handler.setInputAction(singleMachineEvent, Cesium.ScreenSpaceEventType.LEFT_CLICK)
  }

  const removeHandler = () => {
    handler?.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_CLICK)
    handler?.destroy()
    handler = null
  }

  // 自动清理
  onUnmounted(() => {
    removeHandler()
  })

  return {
    handlerInit,
    removeHandler
  }
}