import { readFile } from "node:fs/promises";
import path from "node:path";
import { sse } from "@/lib/realtime/sse";

export const dynamic = "force-dynamic";

async function getDeploymentVersion() {
  if (process.env.NODE_ENV === "development") return "DEV";

  try {
    const version = await readFile(path.join(process.cwd(), ".version"), "utf8");
    return version.trim() || null;
  } catch {
    return null;
  }
}

export async function GET(request: Request) {
  const version = await getDeploymentVersion();
  if (!version) {
    return new Response("Deployment version unavailable", { status: 503 });
  }

  return sse.active.stream({
    signal: request.signal,
    motd: { event: "version", data: version },
  });
}