import * as Cesium from 'cesium'
import aggregationImg from '@/assets/images/home/useUavHome/aggregation.png'
import eventAggregationImg from '@/assets/images/home/useUavHome/eventAggregationImg.png'
import uavImg from '@/assets/images/home/useUavHome/uavImg.png'

import { getEventImage } from '@/utils/stateToImageMap/event'
import { getDroneStatusImage } from '@/utils/stateToImageMap/drone'

import { useStore } from 'vuex'
import { getCenterPoint } from '@/utils/cesium/mapUtil'
import cesiumOperation from '@/utils/cesium-tsa'
import { getDeviceRegion, getDeviceRegionCount, getEventDetails, getMapEvents } from '@/api/home/aggregation'
import { PolyGradientMaterial } from '@/utils/cesium/Material'
import { start } from 'nprogress'

// hook
import { useMapHandlerClick } from '@/hooks/components/useMapHandlerClick'

/**
 * 机巢聚合功能
 */

let arrColor = [
  'rgb(15,176,255)',
  'rgb(18,76,154)',
  '#40C4E4',
  '#42B2BE',
  'rgb(51,176,204)',
  '#8CB7E5',
  'rgb(0,244,188)',
  '#139FF0',
]

let index = 0
function getColor () {
  return arrColor[++index % arrColor.length]
}

export const useMapAggregation = (type, status) => {
  const { flyTo } = cesiumOperation()

  const mergeImg = type === 'device' ? aggregationImg : eventAggregationImg
  const styleTransform = type === 'device' ? 'translateY(-50%)' : 'translate(-50%,-110%)'
  const eventType = type === 'device' ? ['deviceAggregation', 'device'] : 'event'

  const {
    handlerInit: mapHandlerInit,
    removeAll: removeMapHandlerAll,
    removeLabel: removeMapLabel
  } = useMapHandlerClick({
    popupType: `${type}-popup`,
    eventType: eventType,
    styleTransform,
    getViewer () {
      return viewer
    }
  })

  let scalingJudgment = [
    { name: '县', splashedList: [], gJson: null, show: false, outline: {}, value: [0, 48651], height: 31753 },
    { name: '市', splashedList: [], gJson: null, show: false, outline: {}, value: [48651, 314863], height: 257731 },
    {
      name: '省',
      splashedList: [],
      gJson: null,
      show: false,
      outline: {},
      value: [314863, 3796280000],
      height: 1987280,
    },
  ]
  let viewer = null
  let active = null

  const store = useStore()
  const userAreaCode = computed(() => store.state.user.userInfo.detail.areaCode)
  const selectedAreaCode = computed(() => store.state.user.selectedAreaCode)

  const eventTimeType = computed(() => store.state.home.eventTimeType)
  const eventTimeRang = computed(() => store.state.home.eventTimeRang)

  const singleUavHome = computed(() => store.state.home.singleUavHome)

  let needFly = true

  const combinedValues = computed(() => ({
    selectedAreaCode: selectedAreaCode.value,
    eventTimeType: eventTimeType.value,
    eventTimeRang: eventTimeRang.value,
    singleUavHome: singleUavHome.value,
  }))

  let saveParams = { area_code: '', date_enum: 'CURRENT_WEEK' }

  // 确定缩放比例
  const determineScaling = () => {
    // console.log('确定缩放比例');
    if (!viewer) return
    let height = viewer.camera.positionCartographic.height
    // 根据高度展示对应的 gJson
    for (let [index, item] of scalingJudgment.entries()) {
      if (!item.show) return
      if (height > item.value[0] && height <= item.value[1]) {
        if (active === item.name) return
        active = item.name
        removeEntities()
        removeMapLabel()
        renderOutline(item)
        if (!item.gJson && !item.splashedList?.length) return
        item.gJson ? aggregation(item) : splashed(item)
        break
      }
    }
  }

  // 转换为目录结构, 返回数组,
  function convertToHierarchy (code) {
    const codeStr = code.toString()
    const provinceCode = codeStr.slice(0, 2) + '0000'
    const cityCode = codeStr.slice(0, 4) + '00'
    if (codeStr.slice(2, 4) === '00' && codeStr.slice(4, 6) === '00') {
      return [provinceCode]
    } else if (codeStr.slice(4, 6) === '00') {
      return [provinceCode, cityCode]
    }
    return [provinceCode, cityCode, code]
  }

  // 获取设备聚合
  function getDeviceCount (areaCode) {
    return getDeviceRegionCount({ areaCode }).then(res => {
      return res?.data?.data || []
    })
  }
  // 获取设备散点
  function getDeviceList (areaCode) {
    return getDeviceRegion({ areaCode }).then(res => {

      return (res?.data?.data || []).map(i => ({ ...i, type }))


    })
  }

  // 事件散点
  let eventList = []
  function processChildren (childrens) {
    return (childrens || []).map(item => {
      const arr = processChildren(item.childrens)
      if (item.data) {
        eventList = eventList.concat(item.data)
      }
      const returnObj = {
        total_device_count: item.number,
        region_code: item.id,
        region_name: item.name,
      }
      if (arr.length !== 0) {
        returnObj.childrens = arr
      }
      return returnObj
    })
  }

  // 获取事件聚合
  function getMapEventCount (params) {
    return getMapEvents(params).then(res => {
      const resData = res?.data?.data
      if (resData?.data) {
        eventList = resData?.data
        return []
      }
      return processChildren(resData?.childrens)
    })
  }

  const findFun = (featItem, numItem) => Number(featItem.region_code.slice(0, 6)) === numItem.properties.adcode
  const { VITE_APP_BASE, VITE_APP_ENV } = import.meta.env
  const defaultDir = `${VITE_APP_BASE}${VITE_APP_ENV === 'development' ? 'public/' : ''}geoJson/100000/`

  const getFiler = async url => {
    const res = await fetch(url)
    return await res.json()
  }
  const getOutLine = async (jsonPathPre, hierarchy) => {
    const parentGJson = await getFiler(`${defaultDir}${jsonPathPre}/index.json`)
    let features = parentGJson.features.find(item => item.properties.adcode === Number(hierarchy[hierarchy.length - 1]))
    return { type: 'FeatureCollection', features: [features] }
  }

  const injectData = (gJson, dataList) => {
    return {
      ...gJson,
      features: gJson.features.map(item => {
        const findData = dataList.find(item1 => findFun(item1, item))
        return { ...item, data: { ...findData, type: type + 'Aggregation' } }
      }),
    }
  }

  const initMapData = async areaCode => {
    eventList = []
    if (!areaCode) return
    saveParams.area_code = areaCode
    const list = type === 'device' ? await getDeviceCount(areaCode) : await getMapEventCount(saveParams)

    const splashedList =
      type === 'device'
        ? await getDeviceList(areaCode)
        : eventList.map(i => ({
          eventId: i.id,
          latitude: Number(i.latitude),
          longitude: Number(i.longitude),
          type: 'event',
          status: i.status
        }))
    const hierarchy = convertToHierarchy(areaCode.slice(0, 6))
    const jsonPath = hierarchy.join('/')
    const jsonPathPre = hierarchy.slice(0, hierarchy.length - 1).join('/')
    scalingJudgment = scalingJudgment.map(item => ({ ...item, show: true }))
    scalingJudgment[0].gJson = null
    scalingJudgment[0].splashedList = splashedList
    active = null
    // 省
    if (hierarchy.length === 1) {
      const gJson1 = await getFiler(`${defaultDir}${jsonPath}/indexDistrict.json`)
      const gJson2 = await getFiler(`${defaultDir}${jsonPath}/index.json`)
      scalingJudgment[1].gJson = {
        ...gJson1,
        features: gJson1.features.map(item => {
          const findData = list.flatMap(item => item.childrens || []).find(item1 => findFun(item1, item))
          return { ...item, data: { ...findData, type: type + 'Aggregation' } }
        }),
      }
      scalingJudgment[2].gJson = injectData(gJson2, list)
    }
    // 市
    if (hierarchy.length === 2) {
      scalingJudgment[2].gJson = null
      scalingJudgment[2].show = false
      const gJson1 = await getFiler(`${defaultDir}${jsonPath}/index.json`)
      scalingJudgment[1].gJson = injectData(gJson1, list)
    }
    // 区县
    if (hierarchy.length === 3) {
      scalingJudgment[1].gJson = null
      scalingJudgment[1].show = false
      scalingJudgment[2].gJson = null
      scalingJudgment[2].show = false
    }
    // 轮廓
    const outlineGJson = await getOutLine(jsonPathPre, hierarchy)
    scalingJudgment.forEach(item => item.show && (item.outline = outlineGJson))
    const [longitude, latitude] = outlineGJson.features[0].properties.centroid
    const height = scalingJudgment[(hierarchy.length - 3) * -1].height
    setCenterPosition({ longitude, latitude, height })
    flyTo({ longitude, latitude }, 0, height)
  }

  const userAreaPosition = computed(() => store.state.home.userAreaPosition)

  const setCenterPosition = position => {
    store.commit('setCurrentAreaPosition', position)
    if (!userAreaPosition.value.longitude) {
      store.commit('setUserAreaPosition', position)
    }
  }

  watch(
    combinedValues,
    async (newValue, oldValue) => {
      if (newValue.singleUavHome?.device_sn) {
        clearMapEntity()
        return
      }

      if (newValue.eventTimeType) {
        saveParams = { area_code: newValue.selectedAreaCode, date_enum: store.state.home.eventTimeParams }
      }

      if (newValue.eventTimeRang) {
        saveParams = {
          area_code: newValue.selectedAreaCode,
          start_date: newValue.eventTimeRang[0],
          end_date: newValue.eventTimeRang[1],
        }
      }

      needFly = true
      if (!viewer) return
      mapHandlerInit()

      viewer.scene.postRender.removeEventListener(determineScaling)

      initMapData(newValue.selectedAreaCode).then(() => {
        viewer.scene.postRender.addEventListener(determineScaling)
      })
    },
    { deep: true }
  )

  //散点机巢
  function splashed (row) {
    row.splashedList.forEach((item, index) => {
      const image = type === 'device' ? getDroneStatusImage(item.status) : getEventImage(item.status)

      viewer.entities.add({
        id: `aggregation-splashed-${index}`,
        position: Cesium.Cartesian3.fromDegrees(item.longitude, item.latitude),
        label: {
          text: item.nickname,
          font: '12pt Source Han Sans CN',
          fillColor: Cesium.Color.WHITE,
          outlineColor: Cesium.Color.BLACK,
          outlineWidth: 2,
          style: Cesium.LabelStyle.FILL_AND_OUTLINE,
          verticalOrigin: Cesium.VerticalOrigin.BOTTOM,
          pixelOffset: new Cesium.Cartesian2(0, -9),
        },
        billboard: {
          // singleImg
          image: new Cesium.ConstantProperty(image),
          width: 24,
          height: 24,
        },
        properties: {
          customData: {
            data: item,
          },
        },
      })
    })
  }

  // 渲染轮廓
  const renderOutline = item => {
    item.outline &&
      Cesium.GeoJsonDataSource.load(item.outline).then(dataSource => {
        const entities = dataSource.entities.values
        entities.forEach((entity, index) => {
          // 创建独立折线作为轮廓
          const positions = entity.polygon.hierarchy.getValue().positions
          const randomInt = Math.floor(Math.random() * 5) + 1

          let polygon = {}

          if (item.name === '县') {
            let material = new PolyGradientMaterial({
              color: Cesium.Color.fromCssColorString(arrColor[randomInt]),
              opacity: 0.7,
              alphaPower: 1.3,
            })

            entity.polygon.extrudedHeight = (entity.properties.childrenNum._value || 1) * 500

            entity.polygon.material = material

            polygon = entity.polygon
            entity.polygon.outline = false // 显示边框
          }

          viewer.entities.add({
            id: `aggregation-outline-${index}`,
            polyline: {
              positions: positions,
              width: 5, // 直接设置宽度
              material: new Cesium.PolylineGlowMaterialProperty({
                glowPower: 0.5,
                color: Cesium.Color.AQUA,
              }),
            },

            polygon,
          })
        })
      })
  }

  // 聚合机巢
  const aggregation = item => {
    if (!item.gJson) return
    const featuresList = item.gJson.features.map(item1 => {
      // const {lng,lat} = getCenterPoint(item1.geometry.coordinates[0][0])
      return {
        name: item1.properties.name,
        position: item1.properties.centroid,
        data: item1.data,
        id: item1.region_code,
      }
    })
    // 遍历特征并添加实体
    featuresList.forEach((feature, index) => {
      if (!feature.position) return
      const position = Cesium.Cartesian3.fromDegrees(feature.position[0], feature.position[1], 0)
      viewer.entities.add({
        position: position,
        id: `aggregation-name-${index}`,
        label: {
          text: feature.name,
          font: '14pt Source Han Sans CN',
          fillColor: Cesium.Color.WHITE,
          outlineColor: Cesium.Color.BLACK,
          outlineWidth: 2,
          style: Cesium.LabelStyle.FILL_AND_OUTLINE,
          verticalOrigin: Cesium.VerticalOrigin.BOTTOM,
          pixelOffset: new Cesium.Cartesian2(0, -9),
        },
      })
      viewer.entities.add({
        id: `aggregation-count-${index}`,
        position: position,
        label: {
          text: (feature.data.total_device_count || 0).toString(),
          font: '12pt Source Han Sans CN',
          fillColor: Cesium.Color.BLACK,
          outlineColor: Cesium.Color.BLACK,
          style: Cesium.LabelStyle.FILL_AND_OUTLINE,
          eyeOffset: new Cesium.Cartesian3(0, 0, -10), // 让label "浮" 在广告牌前面
        },
        billboard: {
          image: new Cesium.ConstantProperty(mergeImg),
          width: 35,
          height: 35,
        },
        properties: {
          id: feature.id,
          customData: {
            data: feature.data,
          },
        },
      })
    })

    // 加载边界
    Cesium.GeoJsonDataSource.load(item.gJson).then(dataSource => {
      viewer.dataSources.add(dataSource)
      item.BJDataSource = dataSource // 保存数据源以便后续删除
      // 获取数据源中的实体
      const entities = dataSource.entities.values

      entities.forEach(entity => {
        let material = new PolyGradientMaterial({
          color: Cesium.Color.fromCssColorString(getColor()),
          opacity: 0.7,
          alphaPower: 1.3,
        })

        const randomInt = Math.floor(Math.random() * 8) + 1

        entity.polygon.extrudedHeight = (entity.properties.childrenNum._value || randomInt) * 500

        entity.polygon.material = material
        entity.polygon.outline = false // 显示边框
      })

      needFly &&
        viewer.flyTo(dataSource, {
          offset: new Cesium.HeadingPitchRange(0, Cesium.Math.toRadians(-60), 0),
          duration: 0.5,
        })
      needFly = false
    })
  }


  /**
   * 根据条件获取项
   * @param {Array} arr 数据源
   * @param {Function} condition 条件
   * @returns
   */
  const findTypeItem = (arr, condition) => {
    return arr.find(item => condition(item))
  }

  // 移除 点 和 gjson 实体
  const removeEntities = () => {
    // dataSources移除
    scalingJudgment.forEach(item => {
      item.BJDataSource && viewer.dataSources.remove(item.BJDataSource)
      item.BJDataSource = null
    })
    // entities移除
    const entitiesIDs = viewer.entities.values.map(i => i.id)
    entitiesIDs.forEach(item => {
      item.includes('aggregation-') && viewer.entities.removeById(item)
    })
  }


  // 移除所有监听事件，变量置空
  const removeAll = () => {
    clearMapEntity()
    viewer = null
  }

  const clearMapEntity = () => {
    if (!viewer) return
    removeEntities()
    removeMapHandlerAll()

    // viewer.camera.moveEnd.removeEventListener(determineScaling);
    viewer.scene.postRender.removeEventListener(determineScaling)

    active = null
  }

  const init = () => {
    viewer = window.$viewer
    viewer.scene.postRender.removeEventListener(determineScaling)
    initMapData(selectedAreaCode.value || userAreaCode.value).then(() => {
      viewer.scene.postRender.addEventListener(determineScaling)
    })

    mapHandlerInit()
  }

  onBeforeUnmount(() => { })
  // onMounted(() => {
  //   nextTick(() => {
  //     viewer = window.$viewer;
  //     handler = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas);
  //     handler.setInputAction(singleMachineEvent, Cesium.ScreenSpaceEventType.LEFT_CLICK);
  //   });
  // });

  return { init, removeAll }
}