add user accounts and OSM peak catalog with zoom-based notability

src/hooks.server.ts

@@ -0,0 +1,19 @@
+import { error, redirect, type Handle } from '@sveltejs/kit';
+import { validateSession } from '$lib/server/auth';
+
+const PUBLIC_PATHS = new Set(['/login', '/signup']);
+
+export const handle: Handle = async ({ event, resolve }) => {
+	event.locals.user = validateSession(event.cookies.get('session'));
+
+	const path = event.url.pathname;
+	if (!event.locals.user && !PUBLIC_PATHS.has(path)) {
+		if (path.startsWith('/api/')) error(401, 'Not signed in');
+		redirect(303, '/login');
+	}
+	if (event.locals.user && PUBLIC_PATHS.has(path)) {
+		redirect(303, '/');
+	}
+
+	return resolve(event);
+};