import { NextResponse, type NextRequest } from "next/server";

import { parsePaging, type ItemList } from "@/lib/db";

import { getBills, getBillsCount, type BillListItem } from "@/lib/feed";

export const dynamic = "force-dynamic";

export async function GET(req: NextRequest) {

  const sp = req.nextUrl.searchParams;

  const { limit, offset } = parsePaging(sp);

  const congressRaw = parseInt(sp.get("congress") ?? "", 10);

  const filter = {

    q: sp.get("q") || undefined,

    state: sp.get("state") || undefined,

    status: sp.get("status") || undefined,

    congress: Number.isFinite(congressRaw) ? congressRaw : undefined,

    policyArea: sp.get("policyArea") || undefined,

    sort: (

      sp.get("sort") === "action"   ? "action"   :

      sp.get("sort") === "congress" ? "congress" :

      sp.get("sort") === "status"   ? "status"   :

      "updated"

    ) as "updated" | "action" | "congress" | "status",

  };

  const items = getBills(filter, limit, offset);

  const total = getBillsCount(filter);

  const body: ItemList<BillListItem> = { items, total, limit, offset };

  return NextResponse.json(body);

}