import { getPaths } from "yt-dlp-transcript-common/lib/paths";
import { getSettings } from "yt-dlp-transcript-common/lib/settings";
import { readSchedulerState } from "yt-dlp-transcript-common/jobs/syncSchedulerState";
import type { WidgetSyncInputs } from "yt-dlp-transcript-common/views/widgetSync";
import { getChannelBriefs } from "../../lib/requestCache";

// THE READS BEHIND THE WIDGET'S SYNC STRIP.
//
// The payload itself is `common/views/widgetSync.ts` — a pure fold over these
// four values. They are gathered here rather than in the route because BOTH the
// route and the dashboard's SSR seed need them, and a builder that lived in a
// route file was the smell that made `app/page.tsx` import out of
// `api/widget/sync/route.ts` to render a page. (That route is gone; /api/widget/sync
// is rewritten to /api/view/widgetSync, whose handler calls this.)
//
// `getChannelBriefs` is the per-request memo (lib/requestCache.ts): the
// dashboard derives the channel list three ways in one render, and this is one
// of the three.
export async function widgetSyncInputs(): Promise<WidgetSyncInputs> {
  const paths = getPaths();
  const [state, briefs] = await Promise.all([
    readSchedulerState(paths),
    getChannelBriefs(paths),
  ]);
  return { settings: getSettings(), now: Date.now(), state, briefs };
}