export async function loader() {

  const posts = await getRSS().catch(() => {
  });

  const postItems = posts.data.entries
    .map((post) => {
      return [
        `<item>`,
        `<title>${post.title}</title>`,
        `<pubDate>${post.postDate}</pubDate>`,
        `<description><![CDATA[${post.title}]]></description>`,
        `<content:encoded><![CDATA[${post.title}]]></content:encoded>`,
        `<link>${post.url}</link>`,
        `<guid isPermaLink="false">tag:${post.postDate}:/${post.slug}#</guid>`,
        `</item>`
      ].join("");
    });

  let rss = [
    `<?xml version="1.0" encoding="UTF-8"?>`,
    `<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:sy="http://purl.org/rss/1.0/modules/syndication/">`,
    `<channel>`,
    `<title>mersy note</title>`,
    `<description>mersy note</description>`,
    `<link>https://remix-cloudflare-workers.mersy4189618.workers.dev/</link>`,
    `<atom:link href="https://remix-cloudflare-workers.mersy4189618.workers.dev/feed.xml" rel="self" type="application/rss+xml" />`,
    `<language>ja-JP</language>`,
      ...postItems,
    `</channel>`,
    `</rss>`,
  ];

  return new Response(rss.join(""), {
    headers: {
      "Content-Type": "application/xml; charset=utf-8",
      "x-content-type-options": "nosniff",
    },
  });
}