import productSearchApi from '@/lib/product/api/productSearchApi';
import { create } from 'xmlbuilder';

export async function getServerSideProps({ res }) {
  const baseUrl = process.env.SELF_HOST + '/sitemap/products';
  const limit = 2500;

  // ⬇️ Ganti ke URLSearchParams biar key "source" gak hilang
  const params = new URLSearchParams({
    limit,
    source: 'sitemap',
  }).toString();

  const products = await productSearchApi({ query: params });

  const pageCount = Math.ceil(products.response.numFound / limit);
  const pages = Array.from({ length: pageCount }, (_, i) => i + 1);
  const sitemapIndex = create('sitemapindex', { encoding: 'UTF-8' }).att(
    'xmlns',
    'http://www.sitemaps.org/schemas/sitemap/0.9'
  );

  const date = new Date();
  pages.forEach((page) => {
    const sitemap = sitemapIndex.ele('sitemap');
    sitemap.ele('loc', `${baseUrl}/${page}.xml`);
    sitemap.ele('lastmod', date.toISOString().slice(0, 10));
  });

  res.setHeader('Content-Type', 'text/xml');
  res.write(sitemapIndex.end());
  res.end();

  return { props: {} };
}

export default function SitemapProducts() {
  return null;
}