import * as turf from '@turf/turf'
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const { VITE_APP_BASE, VITE_APP_ENV, VITE_APP_REGION_URL } = import.meta.env
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// areaCode转换为目录结构, 返回数组,
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export function areaCodeToArr(code) {
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const codeStr = code.toString()
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const provinceCode = codeStr.slice(0, 2) + '0000'
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const cityCode = codeStr.slice(0, 4) + '00'
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if (codeStr.slice(2, 4) === '00' && codeStr.slice(4, 6) === '00') {
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return [provinceCode]
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} else if (codeStr.slice(4, 6) === '00') {
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return [provinceCode, cityCode]
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}
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return [provinceCode, cityCode, codeStr]
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}
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// 根据区域code获取轮廓
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export const getContourByCode = async areaCode => {
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const defaultDir = `${VITE_APP_REGION_URL}/100000/`
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const hierarchy = areaCodeToArr(areaCode.slice(0, 6))
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const jsonPathPre = hierarchy.slice(0, hierarchy.length - 1).join('/')
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const res = await fetch(`${defaultDir}${jsonPathPre}/index.json`)
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const parentGJson = await res.json()
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let features = parentGJson.features.find(item => item.properties.adcode === Number(hierarchy[hierarchy.length - 1]))
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return { type: 'FeatureCollection', features: [features] }
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}
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