47 lines
1.3 KiB
TypeScript
47 lines
1.3 KiB
TypeScript
import { useMemo } from "react";
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import { useMatches } from "remix";
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import type { User } from "~/models/user.server";
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/**
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* This base hook is used in other hooks to quickly search for specific data
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* across all loader data using useMatches.
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* @param {string} id The route id
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* @returns {JSON|undefined} The router data or undefined if not found
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*/
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export function useMatchesData(
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id: string
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): Record<string, unknown> | undefined {
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const matchingRoutes = useMatches();
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const route = useMemo(
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() => matchingRoutes.find((route) => route.id === id),
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[matchingRoutes, id]
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);
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return route?.data;
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}
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function isUser(user: any): user is User {
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return user && typeof user === "object" && typeof user.email === "string";
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}
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export function useOptionalUser(): User | undefined {
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const data = useMatchesData("root");
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if (!data || !isUser(data.user)) {
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return undefined;
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}
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return data.user;
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}
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export function useUser(): User {
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const maybeUser = useOptionalUser();
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if (!maybeUser) {
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throw new Error(
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"No user found in root loader, but user is required by useUser. If user is optional, try useOptionalUser instead."
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);
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}
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return maybeUser;
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}
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export function validateEmail(email: unknown): email is string {
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return typeof email === "string" && email.length > 3 && email.includes("@");
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}
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