import superjson from "superjson";
import type { OutputType } from "./spotify-download-status_GET.schema";
import { appendSetCookies } from "../helpers/spotifyServer";
import { getDownloadJob, jsonError, requireDownloadAccess } from "../helpers/downloadJobs";

export async function handle(request: Request) {
  try {
    const access = await requireDownloadAccess(request);
    if (access.error) return access.error;

    const jobId = new URL(request.url).searchParams.get("jobId") || "";
    const job = getDownloadJob(jobId, access.userId);
    if (!job) return jsonError("This download has expired or does not exist.", 404);

    const output: OutputType = {
      status: job.status,
      done: job.done,
      total: job.total,
      failed: job.failed,
      currentTitle: job.currentTitle,
      error: job.error,
      fileName: job.fileName,
      savedPath: job.savedPath,
    };
    const headers = new Headers({ "Content-Type": "application/json", "Cache-Control": "no-store" });
    appendSetCookies(headers, access.setCookies);
    return new Response(superjson.stringify(output), { headers });
  } catch (error) {
    return jsonError(error instanceof Error ? error.message : "Unable to check the download.", 500);
  }
}