102 lines
2.9 KiB
JavaScript
102 lines
2.9 KiB
JavaScript
import { useEffect, useRef, useCallback, useMemo, useState } from "react";
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import useLocation from "~/hooks/useLocation";
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import { defibsActions, useDefibsState } from "~/stores";
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import { getDefibAvailability } from "~/utils/dae/getDefibAvailability";
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const RADIUS_METERS = 10_000;
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/**
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* Shared hook: loads defibs near user and exposes location + loading state.
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* The results live in the zustand store so both Liste and Carte tabs share them.
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* By default, only available (open) defibs are returned; toggle showUnavailable to see all.
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*/
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export default function useNearbyDefibs() {
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const { coords, isLastKnown, lastKnownTimestamp } = useLocation();
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const {
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nearUserDefibs,
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loadingNearUser,
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errorNearUser,
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showUnavailable,
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daeUpdateState,
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} = useDefibsState([
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"nearUserDefibs",
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"loadingNearUser",
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"errorNearUser",
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"showUnavailable",
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"daeUpdateState",
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]);
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const hasLocation =
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coords && coords.latitude !== null && coords.longitude !== null;
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// Track whether we've already triggered a load for these coords
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const lastLoadedRef = useRef(null);
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const [noLocation, setNoLocation] = useState(false);
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const loadDefibs = useCallback(async () => {
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if (!hasLocation) {
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return;
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}
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const key = `${coords.latitude.toFixed(4)},${coords.longitude.toFixed(4)}`;
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if (lastLoadedRef.current === key) {
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return; // skip duplicate loads for same position
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}
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lastLoadedRef.current = key;
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await defibsActions.loadNearUser({
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userLonLat: [coords.longitude, coords.latitude],
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radiusMeters: RADIUS_METERS,
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});
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}, [hasLocation, coords]);
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// After a successful DB update, reset the position cache so the next
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// render re-queries the fresh database.
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const prevUpdateState = useRef(daeUpdateState);
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useEffect(() => {
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if (prevUpdateState.current !== "done" && daeUpdateState === "done") {
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lastLoadedRef.current = null;
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}
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prevUpdateState.current = daeUpdateState;
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}, [daeUpdateState]);
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useEffect(() => {
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if (hasLocation) {
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setNoLocation(false);
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loadDefibs();
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}
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}, [hasLocation, loadDefibs]);
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// After a timeout, if we still have no location, set the flag
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useEffect(() => {
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if (hasLocation) {
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return;
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}
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const timer = setTimeout(() => {
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if (!hasLocation) {
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setNoLocation(true);
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}
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}, 8000);
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return () => clearTimeout(timer);
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}, [hasLocation]);
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const filteredDefibs = useMemo(() => {
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if (showUnavailable) return nearUserDefibs;
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return nearUserDefibs.filter((d) => {
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const { status } = getDefibAvailability(d.horaires_std, d.disponible_24h);
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return status === "open";
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});
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}, [nearUserDefibs, showUnavailable]);
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return {
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defibs: filteredDefibs,
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allDefibs: nearUserDefibs,
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loading: loadingNearUser,
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error: errorNearUser,
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hasLocation,
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noLocation,
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isLastKnown,
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lastKnownTimestamp,
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coords,
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reload: loadDefibs,
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showUnavailable,
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};
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}
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