import { safeRevalidate } from "../../lib/safeRevalidate";
import { getPaths } from "yt-dlp-transcript-common/lib/paths";
import type { StreamActionResult } from "yt-dlp-transcript-common/jobs/streamCommand";
import { enqueueRepoint } from "yt-dlp-transcript-common/controller/storageLocations";
import { channelMediaBusyReason } from "../../channels/lib/mediaBusy";

// ONE ENQUEUE OF THE RE-POINT JOB, for the two callers that have one: the
// Re-point button on /storage and the auto path a Refresh can take.
//
// Deliberately NOT in `actions.ts`: that file carries "use server", which means
// every non-type export in it is a server action — a shared helper cannot live
// there, and exporting this one from a "use server" file would put an unguarded
// enqueue on the wire under its own endpoint. Same reason
// `channels/lib/relocationJob.ts` exists.
//
// WHAT THIS FILE ADDS over the controller's `enqueueRepoint` is exactly two
// things the controller may not have: the editor's busy check (S1's
// `channelMediaBusyReason`, which reads the job registry AND the auto-queue
// lanes' in-flight units — a digest unit writing a sidecar makes no job record
// and is the failure that cost the omnimirror move 131 GB), and the page
// revalidations. The job record's shape stays in the controller so the boot
// pass and this cannot drift.
export async function enqueueRepointJob(opts: {
  locationId: string;
  newRoot: string;
}): Promise<StreamActionResult> {
  const paths = getPaths();
  return enqueueRepoint({
    paths,
    locationId: opts.locationId,
    newRoot: opts.newRoot,
    bins: paths,
    isBusy: channelMediaBusyReason,
    afterDone: () => {
      // Every channel on the location now reads from a different path, so the
      // pages that draw a media location are stale. No snapshot regen — the
      // kind is in NO_REGEN_KINDS, and a re-point changes no count.
      safeRevalidate(["/storage", "/channels", "/"]);
    },
  });
}