<template>
  <!-- 原生方式，没有使用vue-echarts -->
  <div :style="`width:${w}px;height:${h}px;`" ref="map3DRef"></div>
</template>

<script setup lang="ts">
import { onMounted, ref, nextTick, PropType, toRefs, watch } from 'vue'
import * as echarts from 'echarts'
import { registerMap } from 'echarts/core'
import 'echarts-gl'
import config from './config'
import { dataMaps } from './mock'

const props = defineProps({
  chartConfig: {
    type: Object as PropType<config>,
    required: true
  }
})

const { w, h } = toRefs(props.chartConfig.attr)

const map3DRef = ref()

const chartInstance = ref()

//动态获取geojson文件进行注册地图
const getGeojson = (regionId: string) => {
  try {
    return new Promise<boolean>(resolve => {
      import(`../OverrideMapBase/mapGeojson/${regionId}.json`).then(data => {
        registerMap(regionId, { geoJSON: data.default as any, specialAreas: {} })
        resolve(true)
      })
    })
  } catch (e) {
    console.log(e)
  }
}

watch(
  () => w.value,
  (value: number) => {
    chartInstance.value.resize({
      width: value + 'px',
      height: h.value + 'px'
    })
  }
)

const initMap = async () => {
  chartInstance.value = echarts.init(map3DRef.value)
  await nextTick()
  await getGeojson(props.chartConfig.option.mapRegion.adcode)
  await nextTick().then(() => {
    vEchartsSetOption(props.chartConfig.option)
  })

  chartInstance.value.on('click', (e: any) => {
    console.log(e)
  })
}

// 手动触发渲染
const vEchartsSetOption = (option: any) => {
  chartInstance.value.clear()
  chartInstance.value.setOption(option)
}

onMounted(() => {
  initMap()
})

//监听地图展示区域发生变化
watch(
  () => `${props.chartConfig.option.mapRegion.adcode}`,
  async (newData: any) => {
    try {
      await getGeojson(newData)
      props.chartConfig.option.geo3D.map = newData
      props.chartConfig.option.series.forEach((item: any) => {
        if (item.type === 'map3D') {
          item.map = newData
          item.data = dataMaps
        }
      })
      initMap()
      vEchartsSetOption(props.chartConfig.option)
    } catch (error) {
      console.log(error)
    }
  },
  {
    immediate: true
  }
)

// 监听地图右侧配置项变化
watch(
  props.chartConfig.option,
  newData => {
    try {
      nextTick(() => {
        initMap()
        vEchartsSetOption(newData)
      })
    } catch (error) {
      console.log(error)
    }
  },
  {
    deep: true
  }
)
</script>