Simo/src/pages/sitemap.xml.ts

import { getCollection } from "astro:content";

export const prerender = true;

const site = "https://simo.ng";

function urlEntry(path: string, date?: Date) {
	const loc = new URL(path, site).toString();
	const lastmod = date ? `\n\t\t<lastmod>${date.toISOString()}</lastmod>` : "";
	return `\n\t<url>\n\t\t<loc>${loc}</loc>${lastmod}\n\t</url>`;
}

export async function GET() {
	const posts = await getCollection("blogs");
	const visiblePosts = posts.filter((post) => (import.meta.env.PROD ? !post.data.draft : true));

	const urls = [
		urlEntry("/"),
		urlEntry("/ram/"),
		urlEntry("/ram/embed/"),
		...visiblePosts.flatMap((post) => [
			urlEntry(`/ram/${post.id}/`, post.data.pubDate),
			urlEntry(`/ram/embed/${post.id}/`, post.data.pubDate),
		]),
	];

	return new Response(`<?xml version="1.0" encoding="UTF-8"?>\n<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">${urls.join("")}\n</urlset>\n`, {
		headers: {
			"Content-Type": "application/xml; charset=utf-8",
		},
	});
}