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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 | 48x 48x 48x 48x 48x 48x 2040x 2040x 470x 470x 470x 2040x 2994x 2994x 281x 273x 2994x 48x 48x 478x 478x 478x 478x 478x 13x 13x 13x 13x 13x 13x 13x 13x 13x 11x 11x 11x 11x 11x 11x 11x 11x 11x 29x 11x 2x 2x 13x 478x 179x 179x 11x 11x 4x 1x 11x 11x 11x 11x 11x 478x 1562x 1560x 179x | 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 = () => {
if (!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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