import { redirect } from '@sveltejs/kit';

// Keep legacy root-query links alive after the cutover: the old feed lived at `/`
// (e.g. /?view=latest, /?tag=…, /?source=…, /?q=…); the feed is now /news. Redirect
// here in load() — before the hub renders — so bookmarks/old shares never flash the
// hub. Bare `/` (no query) falls through to the hub. parseView's alias keeps
// /news?view=today working too.
export function load({ url }) {
  const p = url.searchParams;
  if (p.get('q')) throw redirect(307, '/news?q=' + encodeURIComponent(p.get('q')));
  if (p.get('source')) throw redirect(307, '/news?source=' + encodeURIComponent(p.get('source')));
  if (p.get('tag')) throw redirect(307, '/news?tag=' + encodeURIComponent(p.get('tag')));
  const v = p.get('view');
  if (v === 'today') throw redirect(307, '/news?view=highlights');
  if (v === 'latest') throw redirect(307, '/news');
  if (v) throw redirect(307, '/news?view=' + encodeURIComponent(v));
}