/**
 * 用于更新高德数据库中的adCode信息到本地src/data/area.json中
 */
import "isomorphic-fetch";
import assert from "assert";
import { writeFileSync } from "fs-extra";
import { FormCreateData } from "oak-domain/lib/types/Entity";
import { OpSchema as Area } from "../../src/general-app-domain/Area/Schema";

const KEY = "4f3d4499850ba51429b9dece8cedd8d2";

async function acquireAmap(keyWords: string, subdistrict: number) {
  const url = `https://restapi.amap.com/v3/config/district?keywords=${encodeURIComponent(
    keyWords
  )}&subdistrict=${subdistrict}&key=${KEY}`;

  const res = await fetch(url);
  return res.json();
}

function processRepeatedAdCode(districts: any[], parentAdCode: string) {
  // 高德的street的adCode和父亲相同，这里统一处理一下
  let jdCount = 0;
  let zCount = 100;
  let oCount = 400;
  let xCount = 200;
  const districts2 = districts.map((ele) => {
    const { name, adcode } = ele;
    let ele2 = ele;
    if (adcode === parentAdCode) {
      if (name.endsWith("街道")) {
        ele2 = Object.assign(ele, {
          adcode: parseInt(adcode) * 1000 + jdCount,
        });
        jdCount++;
      } else if (name.endsWith("镇")) {
        ele2 = Object.assign(ele, { adcode: parseInt(adcode) * 1000 + zCount });
        zCount++;
      } else if (name.endsWith("乡")) {
        ele2 = Object.assign(ele, { adcode: parseInt(adcode) * 1000 + xCount });
        xCount++;
      } else {
        ele2 = Object.assign(ele, { adcode: parseInt(adcode) * 1000 + oCount });
        oCount++;
      }
    }
    return ele2;
  });
  return districts2;
}

/**
 * 省份直接取到街道，然后存储
 * @param provinceName
 * @returns {*}
 */
/* function getProvince(provinceName) {
     return acquireAmap(provinceName, 3)
         .then(
             (result) => {
                 const { districts: cities, adcode: provinceCode } = result.districts[0];
                 cities.forEach(
                     (city) => {
                         const { districts, adcode: cityCode } = city;
                         const districts2 = processRepeatedAdCode(districts, cityCode);
                         saveDistricts(districts2, cityCode);
                         districts2.forEach(
                             (district) => {
                                 const { districts: streets, adcode: districtCode } = district;
                                 const streets2 = processRepeatedAdCode(streets, districtCode);
                                 saveDistricts(streets2, districtCode);
                             }
                         );
                     }
                 );
             }
         );
 } */

async function main() {
  const areaTotal: FormCreateData<Area>[] = [];
  function saveAreas(
    areas: any[],
    parentId: string | null,
    depth: 0 | 1 | 2 | 3 | 4,
    dest: FormCreateData<Area>[]
  ) {
    areas.forEach((ele) => {
      const { adcode, center, citycode, level, name } = ele;
      const coords = center.split(",");
      dest.push({
        code: adcode,
        level,
        parentId,
        name,
        depth,
        id: adcode,
        center: {
          type: "point",
          coordinate: [parseFloat(coords[0]), parseFloat(coords[1])],
        },
      });
    });
  }

  const result = await acquireAmap("中国", 1);
  const { districts } = result;
  const country = districts[0];
  saveAreas([country], null, 0, areaTotal);
  const { districts: provinces, adcode: countryCode } = country;

  saveAreas(provinces, countryCode, 1, areaTotal);

  // 完整的数据
  for (const dist of provinces) {
    const result2 = await acquireAmap(dist.name, 3);
    const { districts: cities, adcode: provinceCode } = result2.districts[0];
    saveAreas(cities, provinceCode, 2, areaTotal);
    for (const city of cities) {
      const { districts, adcode: cityCode } = city;
      const districts2 = processRepeatedAdCode(districts, cityCode);
      saveAreas(districts2, cityCode, 3, areaTotal);
      districts2.forEach((district) => {
        const { districts: streets, adcode: districtCode } = district;
        const streets2 = processRepeatedAdCode(streets, districtCode);
        saveAreas(streets2, districtCode, 4, areaTotal);
      });
    }
  }

  writeFileSync(`${__dirname}/../area.json`, JSON.stringify(areaTotal));
}

main().then(() => console.log("success"));
/* 
 acquireAmap('中国', 1)
     .then(
         (result) => {
             saveDistricts(result.districts, null);
             const country = result.districts[0];
             const { districts: provinces, adcode: countryCode } = country;
             saveDistricts(provinces, countryCode);
             function provIter(idx) {
                 if (idx === provinces.length) {
                     return Promise.resolve();
                 }
                 const prov = provinces[idx];
                 return getProvince(prov.name)
                     .then(
                         () => {
                             console.log(`${prov.name}处理完毕`);
                             return provIter(idx + 1);
                         }
                     );
             }
 
             return provIter(0);
         }
     )
     .catch(
         (err) => {
             console.error(err);
             process.exit(-1);
         }
     ); */