import { requireAuthenticatedSession } from '@/lib/server/auth-session';
import { getStoreSnapshot } from '@/lib/server/store';

export async function GET(request: Request) {
  const { response } = await requireAuthenticatedSession();
  if (response) {
    return response;
  }

  const url = new URL(request.url);
  const tickerFilter = url.searchParams.get('ticker')?.trim().toUpperCase();
  const limitValue = Number(url.searchParams.get('limit') ?? 50);
  const limit = Number.isFinite(limitValue)
    ? Math.min(Math.max(Math.trunc(limitValue), 1), 250)
    : 50;

  const snapshot = await getStoreSnapshot();
  const filtered = tickerFilter
    ? snapshot.filings.filter((filing) => filing.ticker === tickerFilter)
    : snapshot.filings;

  const filings = filtered
    .slice()
    .sort((a, b) => Date.parse(b.filing_date) - Date.parse(a.filing_date))
    .slice(0, limit);

  return Response.json({ filings });
}