import {
  transcribeOneAction,
  whisperVideoAction,
} from "../../../channels/[slug]/videos/[id]/videoActions";
import { jobResponse, ops, opsFail, optString, reqSlug, reqVideoId } from "../_lib";

export const dynamic = "force-dynamic";

// POST { slug, id, file? }
//
// One video, transcribed — the video page's two buttons:
//   - with "file" (an audio file in the video's dir, e.g. "audio.mp3"): that
//     file, through the worker pool (transcribeOneAction — the per-file
//     Transcribe on the Files list);
//   - without: the page's Transcribe (whisperVideoAction), which uses the audio
//     on disk, or first downloads it through the channel's managed path when
//     there is none (the disk floor applies to that download only).
// A job on the video's platform queue: { ok, jobId }, so --wait follows it.
// The file name is one path segment; a refused one is the action's sentence.
export async function POST(request: Request) {
  return ops(request, ["slug", "id", "file"], async (body) => {
    const slug = reqSlug(body, "slug");
    const id = reqVideoId(body, "id");
    const file = optString(body, "file");
    // One path segment, checked at the door as reqVideoId checks an id: the
    // name is joined under the video's directory.
    if (file !== undefined && (file === "" || /[/\\\0]/.test(file) || file.startsWith("."))) {
      return opsFail(`"${file}" is not a file name in the video's directory`);
    }
    return jobResponse(
      file !== undefined
        ? await transcribeOneAction(slug, id, file)
        : await whisperVideoAction(slug, id),
    );
  });
}