import { absUrl } from "../../shared/config/site";
import { categorySlugs } from "../../shared/data/categories";

interface SitemapEntry {
  loc: string;
  priority: string;
}

const pages: SitemapEntry[] = [
  { loc: "/", priority: "1" },
  ...categorySlugs.map((s) => ({ loc: `/categories/${s}`, priority: "0.8" })),
];

export default defineEventHandler((event) => {
  setHeader(event, "Content-Type", "application/xml; charset=utf-8");
  const lastmod = new Date().toISOString();
  const urls = pages
    .map(
      (p) =>
        `<url>\n<loc>${absUrl(p.loc)}</loc>\n<lastmod>${lastmod}</lastmod>\n<changefreq>monthly</changefreq>\n<priority>${p.priority}</priority>\n</url>`,
    )
    .join("\n");
  return `<?xml version="1.0" encoding="UTF-8"?>\n<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">\n${urls}\n</urlset>\n`;
});