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

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

    const parsed = schema.safeParse(superjson.parse(await request.text()));
    if (!parsed.success) return jsonError(parsed.error.issues[0]?.message || "Invalid download request.", 400);

    const job = startDownloadJob({ ownerId: access.userId, ...parsed.data });
    const headers = new Headers({ "Content-Type": "application/json", "Cache-Control": "no-store" });
    appendSetCookies(headers, access.setCookies);
    return new Response(superjson.stringify({ jobId: job.id } satisfies OutputType), { headers });
  } catch (error) {
    return jsonError(error instanceof Error ? error.message : "Unable to start the download.", 503);
  }
}