import type { RouterData } from "../types.js";
import type { RouterType } from "../router.types.js";
import { get } from "../utils/getData.js";
import { getTime } from "../utils/getTime.js";

const mappings: Record<string, string> = {
  O_TIME: "发震时刻(UTC+8)",
  LOCATION_C: "参考位置",
  M: "震级(M)",
  EPI_LAT: "纬度(°)",
  EPI_LON: "经度(°)",
  EPI_DEPTH: "深度(千米)",
  SAVE_TIME: "录入时间",
};

export const handleRoute = async (_: undefined, noCache: boolean) => {
  const { fromCache, data, updateTime } = await getList(noCache);
  const routeData: RouterData = {
    name: "earthquake",
    title: "中国地震台",
    type: "地震速报",
    link: "https://news.ceic.ac.cn/",
    total: data?.length || 0,
    updateTime,
    fromCache,
    data,
  };
  return routeData;
};

const getList = async (noCache: boolean) => {
  const url = `https://news.ceic.ac.cn/speedsearch.html`;
  const result = await get({ url, noCache });
  const regex = /const newdata = (\[.*?\]);/s;
  const match = result.data.match(regex);
  const list = match && match[1] ? JSON.parse(match[1]) : [];
  return {
    fromCache: result.fromCache,
    updateTime: result.updateTime,
    data: list.map((v: RouterType["earthquake"]) => {
      const contentBuilder = [];
      const { NEW_DID, LOCATION_C, M } = v;
      for (const mappingsKey in mappings) {
        contentBuilder.push(
          `${mappings[mappingsKey as keyof typeof mappings]}：${v[mappingsKey as keyof typeof v]}`,
        );
      }
      return {
        id: NEW_DID,
        title: `${LOCATION_C}发生${M}级地震`,
        desc: contentBuilder.join("\n"),
        timestamp: getTime(v["O_TIME" as keyof typeof v]),
        hot: undefined,
        url: `https://news.ceic.ac.cn/${NEW_DID}.html`,
        mobileUrl: `https://news.ceic.ac.cn/${NEW_DID}.html`,
      };
    }),
  };
};