javascript source code of leagues

import { useState, useEffect } from "react";

import { leaguesApi } from "../functions/config";
import { fetchJSON } from "../functions/http";

const mapToMetaLeagues = leagues => {
  const tempLeagues = leagues.filter(leagueHash => {
    const leagueName = leagueHash.id;
    return !(
      ["ssf", "standard"].some(prohibitedWord =>
        leagueName.toLowerCase().includes(prohibitedWord)
      ) || leagueName.toLowerCase() === "hardcore"
    );
  });

  const tempSC = tempLeagues.filter(leagueHash => {
    return !leagueHash.id.toLowerCase().includes("hardcore");
  });

  const tempHC = tempLeagues.filter(leagueHash => {
    return leagueHash.id.toLowerCase().includes("hardcore");
  });

  if (tempSC.length !== 1 || tempHC.length !== 1) {
    return {
      Standard: "Standard",
      Hardcore: "Hardcore",
    };
  }

  return {
    "Temp SC": tempSC[0].id,
    "Temp HC": tempHC[0].id,
    Standard: "Standard",
    Hardcore: "Hardcore",
  };
};

const fetchLeagues = () => {
  return fetchJSON(leaguesApi())
    .then(leagues => {
      return mapToMetaLeagues(leagues);
    })
    .catch(error => {
      console.error(`Couldn't fetch leagues: ${error}`);
    });
};

export const useSelectedLeague = () => {
  const [leagues, setLeagues] = useState({});
  useEffect(() => {
    fetchLeagues().then(fetchedLeagues => {
      console.log(`Leagues: ${JSON.stringify(fetchedLeagues)}`);
      setLeagues(fetchedLeagues);
    });
  }, []);

  const [selectedMetaLeague, setSelectedMetaLeague] = useState("Temp SC");

  const [selectedLeague, setSelectedLeague] = useState();
  useEffect(() => {
    setSelectedLeague(leagues[selectedMetaLeague]);
  }, [leagues, selectedMetaLeague]);

  const metaLeagues = ["Temp SC", "Temp HC", "Standard", "Hardcore"];

  return {
    metaLeagues,
    selectedMetaLeague,
    selectedLeague,
    setSelectedMetaLeague,
  };
};