import type * as getFeed from '#lib/lexicons/dev/knotless/getFeed.ts';
import type { Kind } from '#lib/feed.ts';
import type { PageLoad } from './$types';
import { redirect } from '@sveltejs/kit';
import { KINDS } from '#lib/feed.ts';
import { xrpc } from '#lib/data.ts';

/**
 * What happened: to someone logged in, what those they follow did, unless
 * they ask for everyone's; only the kind asked for, if one is; none,
 * without an index. A search asked of the front page, as it once took
 * them, is on its own page now.
 */
export const load: PageLoad = async (event) => {
	if (event.url.searchParams.has('q')) redirect(308, `/search${event.url.search}`);
	const { viewer } = await event.parent();
	const asked = event.url.searchParams;
	const following = !!viewer?.actor && asked.get('feed') !== 'everyone';
	const kind = KINDS.find(([k]) => k === asked.get('kind'))?.[0] ?? null;
	const params = {
		...(following ? ({ filter: 'following' } as const) : {}),
		...(kind ? { kind } : {})
	};
	const feed = await xrpc<typeof getFeed.main>(event, 'dev.knotless.getFeed', params, true);
	return { feed, following, kind: kind as Kind | null, signedIn: !!viewer?.actor };
};