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import { useEffect, useMemo, useRef, useState, useCallback } from "react";
import StopDataProvider, { type Stop } from "../data/StopDataProvider";
import StopItem from "../components/StopItem";
import Fuse from "fuse.js";
import "./stoplist.css";
import { useTranslation } from "react-i18next";
export default function StopList() {
const { t } = useTranslation();
const [data, setData] = useState<Stop[] | null>(null);
const [searchResults, setSearchResults] = useState<Stop[] | null>(null);
const searchTimeout = useRef<NodeJS.Timeout | null>(null);
const randomPlaceholder = useMemo(
() => t("stoplist.search_placeholder"),
[t],
);
const fuse = useMemo(
() => new Fuse(data || [], { threshold: 0.3, keys: ["name.original"] }),
[data],
);
const loadStops = useCallback(async () => {
const stops = await StopDataProvider.getStops();
setData(stops);
}, []);
useEffect(() => {
loadStops();
}, [loadStops]);
const handleStopSearch = (event: React.ChangeEvent<HTMLInputElement>) => {
const stopName = event.target.value || "";
if (searchTimeout.current) {
clearTimeout(searchTimeout.current);
}
searchTimeout.current = setTimeout(() => {
if (stopName.length === 0) {
setSearchResults(null);
return;
}
if (!data) {
console.error("No data available for search");
return;
}
const results = fuse.search(stopName);
const items = results.map((result) => result.item);
setSearchResults(items);
}, 300);
};
const favouritedStops = useMemo(() => {
return data?.filter((stop) => stop.favourite) ?? [];
}, [data]);
const recentStops = useMemo(() => {
// no recent items if data not loaded
if (!data) return null;
const recentIds = StopDataProvider.getRecent();
if (recentIds.length === 0) return null;
// map and filter out missing entries
const stopsList = recentIds
.map((id) => data.find((stop) => stop.stopId === id))
.filter((s): s is Stop => Boolean(s));
return stopsList.reverse();
}, [data]);
if (data === null) {
return <h1 className="page-title">{t("common.loading")}</h1>;
}
return (
<div className="page-container stoplist-page">
<h1 className="page-title">UrbanoVigo Web</h1>
<form className="search-form">
<div className="form-group">
<label className="form-label" htmlFor="stopName">
{t("stoplist.search_label", "Buscar paradas")}
</label>
<input
className="form-input"
type="text"
placeholder={randomPlaceholder}
id="stopName"
onChange={handleStopSearch}
/>
</div>
</form>
{searchResults && searchResults.length > 0 && (
<div className="list-container">
<h2 className="page-subtitle">
{t("stoplist.search_results", "Resultados de la búsqueda")}
</h2>
<ul className="list">
{searchResults.map((stop: Stop) => (
<StopItem key={stop.stopId} stop={stop} />
))}
</ul>
</div>
)}
<div className="list-container">
<h2 className="page-subtitle">{t("stoplist.favourites")}</h2>
{favouritedStops?.length === 0 && (
<p className="message">
{t(
"stoplist.no_favourites",
"Accede a una parada y márcala como favorita para verla aquí.",
)}
</p>
)}
<ul className="list">
{favouritedStops
?.sort((a, b) => a.stopId - b.stopId)
.map((stop: Stop) => <StopItem key={stop.stopId} stop={stop} />)}
</ul>
</div>
{recentStops && recentStops.length > 0 && (
<div className="list-container">
<h2 className="page-subtitle">{t("stoplist.recents")}</h2>
<ul className="list">
{recentStops.map((stop: Stop) => (
<StopItem key={stop.stopId} stop={stop} />
))}
</ul>
</div>
)}
<div className="list-container">
<h2 className="page-subtitle">{t("stoplist.all_stops", "Paradas")}</h2>
<ul className="list">
{data
?.sort((a, b) => a.stopId - b.stopId)
.map((stop: Stop) => <StopItem key={stop.stopId} stop={stop} />)}
</ul>
</div>
</div>
);
}
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