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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 | 53x 53x 53x 53x 53x 53x 2904x 2904x 488x 488x 488x 2904x 4252x 4252x 294x 284x 4252x 53x 53x 675x 675x 675x 675x 675x 12x 12x 12x 12x 12x 12x 12x 12x 12x 10x 10x 10x 10x 10x 10x 10x 10x 10x 27x 10x 2x 2x 12x 675x 370x 370x 19x 19x 4x 4x 19x 19x 19x 19x 19x 676x 2230x 1x 2228x 371x | import { Coordinates } from "features/search/utils/constants";
import { LngLat } from "maplibre-gl";
import { useRouter } from "next/router";
import Sentry from "platform/sentry";
import {
Dispatch,
MutableRefObject,
SetStateAction,
useCallback,
useEffect,
useRef,
useState,
} from "react";
import {
filterDuplicatePlaces,
NominatimPlace,
simplifyPlaceDisplayName,
} from "utils/nominatim";
// Locations having one of these keys are considered non-regions.
// https://nominatim.org/release-docs/latest/api/Output/#addressdetails
const nonRegionKeys = [
"municipality",
"city",
"town",
"village",
"city_district",
"district",
"borough",
"suburb",
"subdivision",
];
function useIsMounted() {
const isMounted = useRef(false);
useEffect(() => {
isMounted.current = true;
return () => {
isMounted.current = false;
};
}, []);
return isMounted;
}
function useSafeState<State>(
isMounted: MutableRefObject<boolean>,
initialState: State | (() => State),
): [State, Dispatch<SetStateAction<State>>] {
const [state, setState] = useState(initialState);
const safeSetState = useCallback(
(newState: SetStateAction<State>) => {
if (isMounted.current) {
setState(newState);
}
},
[isMounted],
);
return [state, safeSetState];
}
export interface GeocodeResult {
name: string;
simplifiedName: string;
location: LngLat;
bbox: Coordinates;
isRegion?: boolean;
}
const NOMINATIM_URL = process.env.NEXT_PUBLIC_NOMINATIM_URL;
const useGeocodeQuery = () => {
const isMounted = useIsMounted();
const [isLoading, setIsLoading] = useSafeState(isMounted, false);
const [error, setError] = useSafeState<string | undefined>(
isMounted,
undefined,
);
const [results, setResults] = useSafeState<GeocodeResult[] | undefined>(
isMounted,
undefined,
);
const query = useCallback(
async (value: string) => {
Iif (!value) {
return;
}
setIsLoading(true);
setError(undefined);
setResults(undefined);
const url = `${NOMINATIM_URL!}search?format=jsonv2&q=${encodeURIComponent(
value,
)}&addressdetails=1`;
const fetchOptions = {
headers: {
Accept: "application/json",
},
method: "GET",
};
try {
const response = await fetch(url, fetchOptions);
if (!response.ok) throw Error(await response.text());
const nominatimResults: NominatimPlace[] = await response.json();
Iif (nominatimResults.length === 0) {
setResults([]);
} else {
const filteredResults = filterDuplicatePlaces(nominatimResults);
const formattedResults = filteredResults.map((result) => {
const firstElem = result["boundingbox"].shift() as number;
const lastElem = result["boundingbox"].pop() as number;
result["boundingbox"].push(firstElem);
result["boundingbox"].unshift(lastElem);
return {
location: new LngLat(
Number(result["lon"]),
Number(result["lat"]),
),
name: result["display_name"],
simplifiedName: simplifyPlaceDisplayName(result),
isRegion: !nonRegionKeys.some((k) => k in result.address),
bbox: result["boundingbox"],
};
});
setResults(formattedResults);
}
} catch (e) {
Sentry.captureException(e, {
tags: {
hook: "useGeocodeQuery",
},
});
setError(e instanceof Error ? e.message : "");
}
setIsLoading(false);
},
[setError, setIsLoading, setResults],
);
return { isLoading, error, results, query };
};
function usePrevious<T>(value: T) {
const ref = useRef<T>();
useEffect(() => {
ref.current = value;
}, [value]);
return ref.current;
}
function useUnsavedChangesWarning({
isDirty,
isSubmitted,
warningMessage,
}: {
isDirty: boolean;
isSubmitted: boolean;
warningMessage: string;
}) {
const router = useRouter();
// https://github.com/vercel/next.js/issues/2694#issuecomment-732990201
useEffect(() => {
const handleWindowClose = (e: BeforeUnloadEvent) => {
Iif (!isDirty) return;
e.preventDefault();
e.returnValue = warningMessage;
return;
};
const handleBrowseAway = () => {
Iif (!isDirty || isSubmitted) return;
if (window.confirm(warningMessage)) return;
router.events.emit("routeChangeError");
throw Error("Cancelled due to unsaved changes");
};
window.addEventListener("beforeunload", handleWindowClose);
router.events.on("routeChangeStart", handleBrowseAway);
return () => {
window.removeEventListener("beforeunload", handleWindowClose);
router.events.off("routeChangeStart", handleBrowseAway);
};
}, [isDirty, router.events, isSubmitted, warningMessage]);
}
export {
useGeocodeQuery,
useIsMounted,
usePrevious,
useSafeState,
useUnsavedChangesWarning,
};
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