middleware.js

// Generated by scripts/vercel.mjs. Do not edit.
const redirects = {"/mobile":"/#mobile","/agents":"/setup"};
const markdownByPath = new Map([["/","/index.md"],["/product","/product.md"],["/docs","/docs.md"],["/setup","/setup.md"],["/download","/download.md"],["/overview","/overview.md"],["/machine","/machine.md"],["/mobile","/mobile.md"],["/agents","/agents.md"],["/services","/services.md"],["/people","/people.md"],["/showcase","/showcase.md"],["/faq","/faq.md"]]);
const HOMEPAGE_LINK_HEADER = "</.well-known/api-catalog>; rel=\"api-catalog\"; type=\"application/linkset+json\", <https://localstudio.ai/.well-known/api-catalog>; rel=\"api-catalog\"; type=\"application/linkset+json\", </llms.txt>; rel=\"describedby\"; type=\"text/markdown\", </index.md>; rel=\"alternate\"; type=\"text/markdown\", </docs>; rel=\"service-doc\"; type=\"text/html\", </docs.md>; rel=\"service-doc\"; type=\"text/markdown\", </openapi.json>; rel=\"service-desc\"; type=\"application/vnd.oai.openapi+json;version=3.1\", </.well-known/mcp>; rel=\"service\"; type=\"application/json\", </developers>; rel=\"service-doc\"; type=\"text/html\", </.well-known/agent-card.json>; rel=\"service-desc\"; type=\"application/json\", </sitemap.xml>; rel=\"describedby\"; type=\"application/xml\", <https://localstudio.ai/>; rel=\"canonical\"; type=\"text/html\"";

function wantsMarkdown(acceptHeader) {
	return (
		acceptHeader.includes("text/markdown") &&
		!acceptHeader.includes("text/html")
	);
}

function markdownTokenCount(body) {
	return String(Math.max(1, Math.ceil(body.length / 4)));
}

// Vercel requires a statically analyzable matcher.
export const config = {
	matcher: "/(.*)",
};

export default async function middleware(request) {
	let url;
	try {
		url = new URL(request.url);
	} catch {
		return new Response("Invalid request URL\n", {
			status: 400,
			headers: { "Content-Type": "text/plain; charset=utf-8" },
		});
	}
	const pathname =
		url.pathname !== "/" && url.pathname.endsWith("/")
			? url.pathname.slice(0, -1)
			: url.pathname;
	const redirect = redirects[pathname];
	if (redirect) {
		return Response.redirect(new URL(redirect, url.origin), 308);
	}
	const accept = request.headers.get("accept") ?? "";
	if (!wantsMarkdown(accept)) return;
	const markdownPath = markdownByPath.get(pathname);
	if (markdownPath === undefined) return;
	const upstream = await fetch(new URL(markdownPath, url.origin));
	if (!upstream.ok) return;
	const body = await upstream.text();
	const headers = {
		"Cache-Control": "public, max-age=0, must-revalidate",
		"Content-Type": "text/markdown; charset=utf-8",
		Vary: "Accept",
		"x-markdown-tokens": markdownTokenCount(body),
	};
	if (pathname === "/") {
		headers.Link = HOMEPAGE_LINK_HEADER;
	}
	return new Response(body, { status: 200, headers });
}