"use client";

// Hub variant of the /ask chat: wires the federated site registry into the
// multi-origin search data source so AskChat's retrieval (runQueryTree) searches
// the archives the hub's search covers. Mirrors HubHome's MultiSiteDataProvider
// wiring from the same list (useFederatedSites): the same order, the same
// colour per archive, and the same scope — an archive this browser switched off
// with its chip on the front page is not fetched here either, so the chat
// grounds in what the search showed. Not progressive: the chat waits until
// every archive in scope has settled, so it never answers from a half-loaded
// federation — nor before the hub's own list is in (`listed`: the archives a
// browser added are known at once, /hub-sites.json's a moment later). With
// NONE in scope it is not ready at all; once the list is in AskChat says why
// (NO_ARCHIVES_ON_HUB, NO_ARCHIVES_IN_SCOPE), and AskScope says how many of
// the hub's archives the chat searches (ASK_SCOPE_LINE).

import { PlayerProvider } from "yt-dlp-transcript-common/components/PlayerProvider";
import TranscriptModal from "yt-dlp-transcript-common/components/TranscriptModal";
import PostModal from "yt-dlp-transcript-common/components/PostModal";
import { MultiSiteDataProvider } from "yt-dlp-transcript-common/components/SearchDataContext";
import { SearchSessionProvider } from "yt-dlp-transcript-common/components/SearchSessionContext";
import { useFederatedSites } from "../components/hub/useHubSites";
import AskChat from "./AskChat";
import AskScope from "./AskScope";

// `transcriptDownloads` comes from the server parent's currentSite() (a client
// component cannot read site.json): false hides the modal's per-video export
// controls.
export default function AskHub({
  transcriptDownloads = true,
}: {
  transcriptDownloads?: boolean;
}) {
  const { federated, listed } = useFederatedSites();

  // The whole provider stack, in the order SiteWorkspace mounts it for a single
  // site — PlayerProvider, then the data source, then the session — because
  // hub mode bypasses that shell entirely and /ask is on its own here.
  //
  // None of these are optional: AskChat's retrieval reads the committed query
  // tree, the filters and runQueryTree out of useSearchSession, and the session
  // itself calls usePlayer (it opens a transcript at a cited timestamp). A
  // missing provider THROWS, so the hub build's prerender of /ask failed and
  // took the whole route with it — which is why e2e:2origin was red. The fix is
  // the stack, never an opt-out of prerendering.
  return (
    <PlayerProvider features={{ transcriptDownloads }}>
      <MultiSiteDataProvider sites={federated} listed={listed}>
        <AskScope />
        <SearchSessionProvider>
          <AskChat />
        </SearchSessionProvider>
      </MultiSiteDataProvider>
      {/* The viewers a citation opens into, siblings of the session exactly as
          HubHome and SiteWorkspace mount them — a cited link with nothing to
          open is the failure this avoids. */}
      <TranscriptModal />
      <PostModal />
    </PlayerProvider>
  );
}