hk-bus-eta/src/hkkf.ts

Query the ETA (Estimated Time of Arrival) of HK Bus/Minibus/MTR/Lightrail

import type { Eta, EtaDb, RouteListEntry } from "./type";
import { getUpcomingFerry, isSafari } from "./utils";

interface fetchEtasProps {
  freq: RouteListEntry["freq"];
  seq: number;
  holidays: EtaDb["holidays"];
  serviceDayMap: EtaDb["serviceDayMap"];
}

export default function fetchEtas({
  freq,
  seq,
  holidays,
  serviceDayMap,
}: fetchEtasProps): Promise<Eta[]> {
  if (seq >= 1) return Promise.resolve([]);
  const now = new Date();
  return Promise.resolve(
    getUpcomingFerry({ holidays, serviceDayMap, freq, date: new Date() })
      .filter((v) => new Date(v).getTime() - now.getTime() < 180 * 60 * 1000)
      .map((eta) => ({
        eta: eta,
        remark: {
          zh: "預定班次",
          en: "Scheduled",
        },
        dest: {
          zh: "",
          en: "",
        },
        co: "fortuneferry",
      })),
  );
  /*
   * the official API is broken most of the time, keep it for reference
  return fetch(
    `https://www.hkkfeta.com/opendata/eta/${route.slice(2)}/${bound === "I" ? "inbound" : "outbound"}`,
    {
      cache: isSafari ? "default" : "no-store",
    },
  )
    .then((response) => response.json())
    .then(({ data }) => {
      if (!data) return [];
      
      return data
        .map(({ETA}: any) => {
          return {
            eta: ETA,
            remark: {
              zh: "",
              en: "",
            },
            dest: {
              zh: "",
              en: "",
            },
            co: "hkkf",
          }
        });
    });
    */
}