boredgame/src/routes/(app)/+layout.server.ts

import { loadFlash } from 'sveltekit-flash-message/server';
import type { LayoutServerLoad } from '../$types';
import { userFullyAuthenticated, userNotFullyAuthenticated } from '$lib/server/auth-utils';
import { lucia } from '$lib/server/auth';

export const load: LayoutServerLoad = loadFlash(async (event) => {
	const { url, locals, cookies } = event;
	const { user, session } = locals;

	if (userNotFullyAuthenticated(user, session)) {
		await lucia.invalidateSession(locals.session!.id!);
		const sessionCookie = lucia.createBlankSessionCookie();
		cookies.set(sessionCookie.name, sessionCookie.value, {
			path: '.',
			...sessionCookie.attributes,
		});
	}

	return {
		url: url.pathname,
		user: userFullyAuthenticated(user, session) ? locals.user : null,
	};
});