siftlode/frontend/src/components/plexViews.tsx

import { lazy, Suspense, useState } from "react";
import { useTranslation } from "react-i18next";
import { useQuery, useQueryClient } from "@tanstack/react-query";
import { ArrowLeft, Layers, ListPlus, Play, RotateCcw, Star, User } from "lucide-react";
import { qk } from "../lib/queryKeys";
import { api, type PlexCard, type PlexFilters, type PlexPersonDetail } from "../lib/api";
import { plexLang } from "../i18n";
import { pickRatingBadge } from "../lib/plexRating";
import { notifyActionError } from "../lib/actionErrors";
import { toggleWatchState } from "../lib/plexWatch";
import {
  ActionBtn,
  BackBtn,
  DetailCustomizeMenu,
  DetailHero,
  epLabel,
  Filterable,
  useArtBackdrop,
  useDetailPrefs,
  WatchedToggle,
} from "../lib/plexDetailUi";
import { CastStrip, EpisodeCard, PlexPosterCard, RelatedStrip, SeasonCard } from "./plexCards";
import PlexPlaylistAdd, { type PlexAddTarget } from "./PlexPlaylistAdd";
import PlexCollectionEditor from "./PlexCollectionEditor";
import { LoadingState, StateMessage } from "./QueryState";

// The Plex sub-router's view branches, split out of PlexBrowse. Each is invoked by PlexBrowse with
// shell callbacks as props (onBack/onPlay/onFilter/…) — no view reaches back into the shell's state,
// which is what made this a pure code-motion split. Cards/strips come from plexCards, the shared
// detail-page UI from lib/plexDetailUi.

// Lazy: the rich movie info panel loads only when an info page is opened.
const PlexInfo = lazy(() => import("./PlexInfo"));

export function PlexInfoView({
  id,
  onBack,
  onPlay,
  onPlayItem,
  onFilter,
  onOpenPerson,
}: {
  id: string;
  onBack: () => void;
  onPlay: () => void;
  onPlayItem: (id: string) => void;
  onFilter: (patch: Partial<PlexFilters>) => void;
  onOpenPerson: (name: string) => void;
}) {
  const { t } = useTranslation();
  const lang = plexLang();
  const q = useQuery({ queryKey: qk.plexItem(id, lang), queryFn: () => api.plexItem(id, lang) });
  return (
    <div className="w-[90%] max-w-[1600px] mx-auto">
      <div className="p-4 pb-0">
        <button
          onClick={onBack}
          className="glass-card glass-hover inline-flex items-center gap-1.5 px-2.5 py-1.5 rounded-lg text-xs"
        >
          <ArrowLeft className="w-4 h-4" />
          {t("plex.backToLibrary")}
        </button>
      </div>
      {q.isError && !q.data ? (
        <StateMessage tone="error" onRetry={() => q.refetch()}>
          {t("common.loadError")}
        </StateMessage>
      ) : q.isLoading || !q.data ? (
        <LoadingState label={t("plex.loading")} />
      ) : (
        <Suspense fallback={<p className="p-8 text-muted text-sm">{t("plex.loading")}</p>}>
          <PlexInfo
            detail={q.data}
            variant="page"
            library={q.data.library ?? undefined}
            onPlay={onPlay}
            onPlayItem={onPlayItem}
            onFilter={onFilter}
            onOpenPerson={onOpenPerson}
            // No onStateChange: PlexInfo.setState already invalidates qk.plexItem(id) (this very
            // query), so q refetches automatically — a manual refetch here just double-fetched.
          />
        </Suspense>
      )}
    </div>
  );
}

// --- Actor detail: a cast/crew member's filmography (movies + shows in one place) ---------------
// The inverse of the cast-name → library-filter link: opened from a cast row (info/show page), it
// shows the person's headshot + name, a "filter the library by them" action, and their titles as two
// poster-card sections (Movies / Shows). Mirrors PlexInfoView's fetch-wrapper + glass-hero shape.
export function PlexPersonView({
  name,
  onBack,
  onOpenCard,
  onInfoCard,
  onFilter,
}: {
  name: string;
  onBack: () => void;
  onOpenCard: (card: PlexCard) => void;
  onInfoCard: (card: PlexCard) => void;
  onFilter: (patch: Partial<PlexFilters>) => void;
}) {
  const { t } = useTranslation();
  const qc = useQueryClient();
  const q = useQuery({ queryKey: qk.plexPerson(name), queryFn: () => api.plexPerson(name) });

  // Quick watch-toggle from a filmography card: optimistically flip in THIS person's cached payload
  // (both the movies and shows arrays — an id matches only one), then persist + resync via the shared
  // helper; also invalidate the library so its grid agrees.
  const toggle = (card: PlexCard) =>
    toggleWatchState(card, t, {
      optimistic: (next) =>
        qc.setQueryData<PlexPersonDetail>(qk.plexPerson(name), (old) =>
          old
            ? {
                ...old,
                movies: old.movies.map((m) => (m.id === card.id ? { ...m, status: next } : m)),
                shows: old.shows.map((s) => (s.id === card.id ? { ...s, status: next } : s)),
              }
            : old,
        ),
      resync: () => {
        qc.invalidateQueries({ queryKey: qk.plexPerson(name) });
        qc.invalidateQueries({ queryKey: qk.plexLibrary() });
      },
    });

  const section = (titleKey: string, cards: PlexCard[]) =>
    cards.length > 0 ? (
      <section className="mb-8">
        <h2 className="text-sm font-semibold mb-3">{t(titleKey, { count: cards.length })}</h2>
        <div className="grid grid-cols-[repeat(auto-fill,minmax(150px,1fr))] gap-3">
          {cards.map((c) => (
            <PlexPosterCard
              key={c.id}
              card={c}
              onOpen={() => onOpenCard(c)}
              onInfo={() => onInfoCard(c)}
              onToggleWatched={toggle}
            />
          ))}
        </div>
      </section>
    ) : null;

  const d = q.data;
  const empty = !!d && d.movies.length === 0 && d.shows.length === 0;
  return (
    <div className="w-[90%] max-w-[1600px] mx-auto">
      <div className="p-4 pb-0">
        <button
          onClick={onBack}
          className="glass-card glass-hover inline-flex items-center gap-1.5 px-2.5 py-1.5 rounded-lg text-xs"
        >
          <ArrowLeft className="w-4 h-4" />
          {t("plex.backToLibrary")}
        </button>
      </div>
      {q.isError && !d ? (
        <StateMessage tone="error" onRetry={() => q.refetch()}>
          {t("common.loadError")}
        </StateMessage>
      ) : q.isLoading || !d ? (
        <LoadingState label={t("plex.loading")} />
      ) : (
        <div className="p-4">
          {/* Hero: headshot + name + a "filter the library by this person" action. */}
          <section className="glass-card rounded-2xl p-4 sm:p-5 mb-6 flex items-center gap-4">
            <div className="h-24 w-24 shrink-0 overflow-hidden rounded-full border border-border bg-surface">
              {d.photo ? (
                <img src={d.photo} alt="" className="h-full w-full object-cover" />
              ) : (
                <div className="grid h-full w-full place-items-center opacity-40">
                  <User className="h-8 w-8" />
                </div>
              )}
            </div>
            <div className="min-w-0">
              <h1 className="truncate text-xl font-semibold">{d.name}</h1>
              <p className="mb-2 text-xs text-muted">
                {t("plex.person.credits", {
                  movies: d.movies.length,
                  shows: d.shows.length,
                })}
              </p>
              <button
                onClick={() => onFilter({ actors: [d.name] })}
                className="rounded-full border border-border bg-card px-3 py-1 text-xs font-medium transition hover:border-accent hover:text-accent"
              >
                {t("plex.person.filterBy", { name: d.name })}
              </button>
            </div>
          </section>
          {empty ? (
            <p className="text-sm text-muted">{t("plex.person.empty")}</p>
          ) : (
            <>
              {section("plex.person.movies", d.movies)}
              {section("plex.person.shows", d.shows)}
            </>
          )}
        </div>
      )}
    </div>
  );
}

// --- Series drill-down: show detail page → season subpage → player -------------------------------
// Both the show page and the season page read the SAME cached qk.plexShow(showId) payload (the
// season page just picks its season out of it), so opening a season is instant and PlexPlaylistAdd's
// whole-show/season gather keeps working. Actions: Resume (on-deck episode), Play (from the start),
// Mark whole show/season watched/unwatched, Add to playlist (show/season/episode), and — admin only —
// Add the whole show to a collection.

export function PlexShowView({
  showId,
  onBack,
  onPlay,
  onOpenSeason,
  onOpenShow,
  onFilter,
  onOpenPerson,
}: {
  showId: string;
  onBack: () => void;
  onPlay: (epRk: string, queue: string[]) => void;
  onOpenSeason: (seasonId: string) => void;
  onOpenShow: (id: string) => void;
  onFilter?: (patch: Partial<PlexFilters>) => void;
  onOpenPerson?: (name: string) => void;
}) {
  const { t } = useTranslation();
  const qc = useQueryClient();
  const isAdmin = qc.getQueryData<{ role?: string }>(qk.me())?.role === "admin";
  const lang = plexLang();
  const q = useQuery({
    queryKey: qk.plexShow(showId, lang),
    queryFn: () => api.plexShow(showId, lang),
  });
  const d = q.data;
  const [addTarget, setAddTarget] = useState<PlexAddTarget | null>(null);
  const [collOpen, setCollOpen] = useState(false);
  const [busy, setBusy] = useState(false);

  const show = d?.show;
  const showLib = show?.library ?? undefined;
  const allKeys = (d?.seasons ?? []).flatMap((se) => se.episodes.map((e) => e.id));
  const watched = show?.status === "watched";
  const { artBg, showCast, showRelated, toggleArtBg, toggleCast, toggleRelated } = useDetailPrefs();
  useArtBackdrop(show?.art, artBg);
  async function markAll(w: boolean) {
    setBusy(true);
    try {
      await api.plexShowState(showId, w);
    } catch (e) {
      notifyActionError(e, t("plex.watchedFailed"));
    } finally {
      setBusy(false);
    }
    qc.invalidateQueries({ queryKey: qk.plexShow(showId) });
    qc.invalidateQueries({ queryKey: qk.plexLibrary() });
  }
  async function markSeason(seasonRk: string, w: boolean) {
    try {
      await api.plexSeasonState(seasonRk, w);
    } catch (e) {
      notifyActionError(e, t("plex.watchedFailed"));
    }
    qc.invalidateQueries({ queryKey: qk.plexShow(showId) });
    qc.invalidateQueries({ queryKey: qk.plexLibrary() });
  }

  return (
    <div className="p-4 max-w-[1200px] mx-auto glass-media">
      <BackBtn onBack={onBack} label={t("plex.backToLibrary")} />

      {q.isError && !q.data ? (
        <StateMessage tone="error" onRetry={() => q.refetch()}>
          {t("common.loadError")}
        </StateMessage>
      ) : q.isLoading || !d || !show ? (
        <LoadingState label={t("plex.loading")} />
      ) : (
        <>
          {/* Hero */}
          <DetailHero
            thumb={show.thumb}
            posterTitle={show.status === "new" ? t("plex.play") : t("plex.resume")}
            posterDisabled={!show.resume}
            showPlayOverlay={!!show.resume}
            onPosterClick={() => show.resume && onPlay(show.resume.id, allKeys)}
            customizeMenu={
              <DetailCustomizeMenu
                artBg={artBg}
                onToggleArtBg={toggleArtBg}
                showCast={showCast}
                onToggleCast={toggleCast}
                hasCast={show.cast.length > 0}
                showRelated={showRelated}
                onToggleRelated={toggleRelated}
                hasRelated={d.related.length > 0}
              />
            }
          >
            <h1 className="text-2xl font-semibold leading-tight">{show.title}</h1>
            <div className="mt-1 flex flex-wrap items-center gap-x-2 gap-y-0.5 text-sm text-muted">
              {show.year != null && (
                <Filterable
                  onClick={
                    onFilter
                      ? () => onFilter({ yearMin: show.year, yearMax: show.year })
                      : undefined
                  }
                >
                  {show.year}
                </Filterable>
              )}
              {show.content_rating && (
                <Filterable
                  onClick={
                    onFilter
                      ? () => onFilter({ contentRatings: [show.content_rating!] })
                      : undefined
                  }
                >
                  · {show.content_rating}
                </Filterable>
              )}
              {show.season_count != null && (
                <span>· {t("plex.seasons", { count: show.season_count })}</span>
              )}
              {(() => {
                // IMDb score when present, else the Plex audience score — mirrors PlexInfo so a show
                // with no imdb:// entry (imdb_rating NULL after the S6 IMDb-only change) still shows a
                // rating instead of dropping the badge entirely.
                const badge = pickRatingBadge(show.imdb_rating, show.rating);
                if (!badge) return null;
                const { score } = badge;
                return (
                  <button
                    onClick={
                      onFilter ? () => onFilter({ ratingMin: Math.floor(score) }) : undefined
                    }
                    className={`inline-flex items-center gap-1 ${onFilter ? "cursor-pointer hover:text-accent" : "cursor-default"}`}
                  >
                    {/* decorative rating gold — intentionally NOT a status token */}
                    · <Star className="w-3.5 h-3.5 text-amber-400" fill="currentColor" />
                    {score.toFixed(1)}
                  </button>
                );
              })()}
            </div>
            {show.genres.length > 0 && (
              <div className="mt-2 flex flex-wrap gap-1.5">
                {show.genres.map((g) => (
                  <Filterable
                    key={g}
                    className="text-2xs rounded-full bg-surface px-2 py-0.5 text-muted"
                    onClick={onFilter ? () => onFilter({ genres: [g] }) : undefined}
                  >
                    {g}
                  </Filterable>
                ))}
              </div>
            )}
            {show.summary && (
              <p className="text-sm text-muted mt-3 leading-relaxed line-clamp-5">{show.summary}</p>
            )}
            <div className="mt-4 flex flex-wrap gap-2">
              {show.resume && (
                <ActionBtn
                  primary
                  onClick={() => onPlay(show.resume!.id, allKeys)}
                  icon={Play}
                  label={show.status === "new" ? t("plex.play") : t("plex.resume")}
                  sub={epLabel(show.resume)}
                />
              )}
              {show.first && show.status !== "new" && (
                <ActionBtn
                  onClick={() => onPlay(show.first!.id, allKeys)}
                  icon={RotateCcw}
                  label={t("plex.series.playFromStart")}
                />
              )}
              <WatchedToggle
                watched={watched}
                busy={busy}
                onToggle={() => markAll(!watched)}
                watchedLabel={t("plex.series.markShowUnwatched")}
                unwatchedLabel={t("plex.series.markShowWatched")}
              />
              {allKeys.length > 0 && (
                <ActionBtn
                  onClick={() =>
                    setAddTarget({ kind: "group", ratingKeys: allKeys, title: show.title })
                  }
                  icon={ListPlus}
                  label={t("plex.playlist.addShow")}
                />
              )}
              {isAdmin && showLib && (
                <ActionBtn
                  onClick={() => setCollOpen(true)}
                  icon={Layers}
                  label={t("plex.series.addShowCollection")}
                />
              )}
            </div>
          </DetailHero>

          {/* Seasons — in a glassy panel like the movie info-page strips. */}
          <section
            className="glass-card rounded-2xl p-4 sm:p-5 mb-6"
            style={{ background: "color-mix(in srgb, var(--card) 55%, transparent)" }}
          >
            <h2 className="text-sm font-semibold mb-3">{t("plex.series.seasons")}</h2>
            <div className="grid grid-cols-[repeat(auto-fill,minmax(140px,1fr))] gap-3">
              {d.seasons.map((se) => (
                <SeasonCard
                  key={se.id}
                  se={se}
                  onOpen={() => onOpenSeason(se.id)}
                  onToggleWatched={() => markSeason(se.id, se.status !== "watched")}
                  onAdd={
                    se.episodes.length > 0
                      ? () =>
                          setAddTarget({
                            kind: "group",
                            ratingKeys: se.episodes.map((e) => e.id),
                            title: `${show.title} — ${se.title}`,
                          })
                      : undefined
                  }
                />
              ))}
            </div>
          </section>

          {show.cast.length > 0 && showCast && (
            <CastStrip cast={show.cast} onFilter={onFilter} onOpenPerson={onOpenPerson} />
          )}
          {d.related.length > 0 && showRelated && (
            <RelatedStrip related={d.related} onOpen={onOpenShow} />
          )}
        </>
      )}

      {addTarget && <PlexPlaylistAdd target={addTarget} onClose={() => setAddTarget(null)} />}
      {collOpen && show && showLib && (
        <PlexCollectionEditor
          item={{ id: show.id, title: show.title }}
          library={showLib}
          memberOf={show.collection_keys}
          onClose={() => setCollOpen(false)}
          onChanged={() => qc.invalidateQueries({ queryKey: qk.plexShow(showId) })}
        />
      )}
    </div>
  );
}

export function PlexSeasonView({
  showId,
  seasonId,
  onBack,
  onPlay,
}: {
  showId: string;
  seasonId: string;
  onBack: () => void;
  onPlay: (epRk: string, queue: string[]) => void;
}) {
  const { t } = useTranslation();
  const qc = useQueryClient();
  const lang = plexLang();
  const q = useQuery({
    queryKey: qk.plexShow(showId, lang),
    queryFn: () => api.plexShow(showId, lang),
  });
  const d = q.data;
  const se = d?.seasons.find((s) => s.id === seasonId);
  const [addTarget, setAddTarget] = useState<PlexAddTarget | null>(null);
  const [busy, setBusy] = useState(false);

  const seasonKeys = se?.episodes.map((e) => e.id) ?? [];
  // Play-through queue spans the WHOLE show (all seasons, in order) so a season's last episode rolls
  // straight into the next season's first — the same cross-season order the show page already uses.
  // seasonKeys stays only for the season-scoped "add to playlist" action.
  const allKeys = (d?.seasons ?? []).flatMap((s) => s.episodes.map((e) => e.id));
  const watched = se?.status === "watched";
  const { artBg, showCast, toggleArtBg, toggleCast } = useDetailPrefs();
  useArtBackdrop(d?.show.art, artBg);
  async function markAll(w: boolean) {
    setBusy(true);
    try {
      await api.plexSeasonState(seasonId, w);
    } catch (e) {
      notifyActionError(e, t("plex.watchedFailed"));
    } finally {
      setBusy(false);
    }
    qc.invalidateQueries({ queryKey: qk.plexShow(showId) });
    qc.invalidateQueries({ queryKey: qk.plexLibrary() });
  }
  async function markEpisode(ep: PlexCard) {
    try {
      await api.plexSetState(ep.id, ep.status === "watched" ? "new" : "watched");
    } catch (e) {
      notifyActionError(e, t("plex.watchedFailed"));
    }
    qc.invalidateQueries({ queryKey: qk.plexShow(showId) });
    qc.invalidateQueries({ queryKey: qk.plexLibrary() });
  }

  return (
    <div className="p-4 max-w-[1200px] mx-auto glass-media">
      <BackBtn onBack={onBack} label={t("plex.series.backToShow")} />

      {q.isError && !q.data ? (
        <StateMessage tone="error" onRetry={() => q.refetch()}>
          {t("common.loadError")}
        </StateMessage>
      ) : q.isLoading || !d || !se ? (
        <LoadingState label={t("plex.loading")} />
      ) : (
        <>
          <DetailHero
            thumb={se.thumb}
            posterTitle={se.status === "new" ? t("plex.play") : t("plex.resume")}
            posterDisabled={!se.resume}
            showPlayOverlay={!!se.resume}
            onPosterClick={() => se.resume && onPlay(se.resume.id, allKeys)}
            posterSizeClass="w-28 sm:w-40"
            customizeMenu={
              <DetailCustomizeMenu
                artBg={artBg}
                onToggleArtBg={toggleArtBg}
                showCast={showCast}
                onToggleCast={toggleCast}
                hasCast={false}
              />
            }
          >
            <button
              onClick={onBack}
              className="text-sm text-muted hover:text-accent transition text-left"
            >
              {d.show.title}
            </button>
            <h1 className="text-2xl font-semibold leading-tight">{se.title}</h1>
            <p className="text-sm text-muted mt-1">
              {t("plex.series.episodeCount", { count: se.episode_count })}
            </p>
            <div className="mt-4 flex flex-wrap gap-2">
              {se.resume && (
                <ActionBtn
                  primary
                  onClick={() => onPlay(se.resume!.id, allKeys)}
                  icon={Play}
                  label={se.status === "new" ? t("plex.play") : t("plex.resume")}
                  sub={epLabel(se.resume)}
                />
              )}
              {se.first && se.status !== "new" && (
                <ActionBtn
                  onClick={() => onPlay(se.first!.id, allKeys)}
                  icon={RotateCcw}
                  label={t("plex.series.playFromStart")}
                />
              )}
              <WatchedToggle
                watched={watched}
                busy={busy}
                onToggle={() => markAll(!watched)}
                watchedLabel={t("plex.series.markSeasonUnwatched")}
                unwatchedLabel={t("plex.series.markSeasonWatched")}
              />
              {seasonKeys.length > 0 && (
                <ActionBtn
                  onClick={() =>
                    setAddTarget({
                      kind: "group",
                      ratingKeys: seasonKeys,
                      title: `${d.show.title} — ${se.title}`,
                    })
                  }
                  icon={ListPlus}
                  label={t("plex.playlist.addSeason")}
                />
              )}
            </div>
          </DetailHero>

          <div className="grid grid-cols-[repeat(auto-fill,minmax(230px,1fr))] gap-x-3 gap-y-4">
            {se.episodes.map((ep) => (
              <EpisodeCard
                key={ep.id}
                ep={ep}
                onPlay={() => onPlay(ep.id, allKeys)}
                onAdd={() => setAddTarget({ kind: "single", ratingKey: ep.id, title: ep.title })}
                onToggleWatched={() => markEpisode(ep)}
              />
            ))}
          </div>
        </>
      )}

      {addTarget && <PlexPlaylistAdd target={addTarget} onClose={() => setAddTarget(null)} />}
    </div>
  );
}