export async function konlol(req) {
  const { searchParams: sp } = new URL(req.url);
  const url = sp.get('url');
  const custom = sp.get('custom');
  const mode = sp.get('mode') || 'shorten';

  if (mode === 'status') {
    try {
      const res = await fetch("https://kon.lol/api/rate-status", {
        headers: {
          'User-Agent': 'Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Mobile Safari/537.36',
          'Referer': 'https://kon.lol/'
        }
      });
      return res.json();
    } catch (err) {
      return { error: err.message };
    }
  }

  if (!url) {
    return {
      error: "missing url",
      usage: {
        shorten: "/konlol?url=https://example.com",
        custom: "/konlol?url=https://example.com&custom=myslug",
        status: "/konlol?mode=status"
      }
    };
  }

  try {
    const body = { url };
    if (custom) body.customPath = custom;

    const res = await fetch("https://kon.lol/api/shorten", {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify(body)
    });
    return res.json();
  } catch (err) {
    return { error: err.message };
  }
}