import { NextResponse } from "next/server";
import { getPosts } from "@/lib/posts";

const SITE_URL = "https://denizbektas.com.tr";

export async function GET() {
  const posts = getPosts("infosec");

  const items = posts
    .map(
      (post) => `
    <item>
      <title><![CDATA[${post.title}]]></title>
      <link>${SITE_URL}/infosec/${post.slug}</link>
      <guid>${SITE_URL}/infosec/${post.slug}</guid>
      <pubDate>${new Date(post.date).toUTCString()}</pubDate>
      <description><![CDATA[${post.excerpt}]]></description>
    </item>`
    )
    .join("\n");

  const xml = `<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
  <channel>
    <title>Deniz Bektaş — Infosec Posts</title>
    <link>${SITE_URL}/infosec</link>
    <description>Teknik siber güvenlik yazıları</description>
    <language>tr</language>
    <atom:link href="${SITE_URL}/api/rss/infosec" rel="self" type="application/rss+xml"/>
    <lastBuildDate>${new Date().toUTCString()}</lastBuildDate>
    ${items}
  </channel>
</rss>`;

  return new NextResponse(xml, {
    headers: { "Content-Type": "application/xml; charset=utf-8", "Cache-Control": "public, max-age=3600" },
  });
}