import { useRouter } from "./useRouter.js";
import { replaceEqualDeep } from "@tanstack/router-core";
import { useRef } from "react";
import { useStore } from "@tanstack/react-store";
import { isServer } from "@tanstack/router-core/isServer";
//#region src/useLocation.tsx
/**
* Read the current location from the router state with optional selection.
* Useful for subscribing to just the pieces of location you care about.
*
* Options:
* - `select`: Project the `location` object to a derived value
* - `structuralSharing`: Enable structural sharing for stable references
*
* @returns The current location (or selected value).
* @link https://tanstack.com/router/latest/docs/framework/react/api/router/useLocationHook
*/
function useLocation(opts) {
	const router = useRouter();
	if (isServer ?? router.isServer) {
		const location = router.stores.location.get();
		return opts?.select ? opts.select(location) : location;
	}
	const previousResult = useRef(void 0);
	return useStore(router.stores.location, (location) => {
		const selected = opts?.select ? opts.select(location) : location;
		if (opts?.structuralSharing ?? router.options.defaultStructuralSharing) {
			const shared = replaceEqualDeep(previousResult.current, selected);
			previousResult.current = shared;
			return shared;
		}
		return selected;
	});
}
//#endregion
export { useLocation };

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