import { createReadStream } from "node:fs";
import { rm } from "node:fs/promises";
import { Readable } from "node:stream";
import { takeJob } from "@/lib/jobs";

export const runtime = "nodejs";
export const dynamic = "force-dynamic";

export async function GET(
  _req: Request,
  context: { params: Promise<{ jobId: string }> },
): Promise<Response> {
  const { jobId } = await context.params;
  const job = takeJob(jobId);
  if (!job) {
    return Response.json({ error: "Download expired or not found" }, { status: 404 });
  }

  const file = createReadStream(job.zipPath);
  file.on("close", () => {
    void rm(job.dir, { recursive: true, force: true });
  });
  file.on("error", () => {
    void rm(job.dir, { recursive: true, force: true });
  });

  return new Response(Readable.toWeb(file) as ReadableStream, {
    headers: {
      "Content-Type": "application/zip",
      "Content-Disposition": 'attachment; filename="ids.zip"',
      "Cache-Control": "no-store",
    },
  });
}