Genarrative/apps/admin-web/src/pages/AdminGameDistributionReviewPage.tsx

import './adminGameDistributionReview.css';

import {
  AdminActionRow,
  AdminAlert,
  AdminButton,
  AdminListPanel,
  AdminPage,
  AdminPageHeading,
  formatAdminDateTime,
  GameDetailDisplay,
  Modal,
  PLATFORM_GAME_LOADING_TIMEOUT_MS,
  PlatformGameLoadingSurface,
  TextField,
} from '@genarrative/shared/components';
import { RefreshCcw } from 'lucide-react';
import { useCallback, useEffect, useRef, useState } from 'react';

import {
  createAdminGameDistributionPreviewSession,
  getAdminAssetReadUrl,
  getAdminGameDistributionVersion,
  listAdminGameDistributionGames,
  listAdminGameDistributionReviews,
  reviewAdminGameDistributionVersion,
} from '../api/adminApiClient';
import type {
  AdminGameDistributionGameDetail,
  AdminGameDistributionReviewEntry,
  AdminGameDistributionVersionDetailResponse,
} from '../api/adminApiTypes';
import { handlePageError } from './pageUtils';

interface AdminGameDistributionReviewPageProps {
  token: string;
  onUnauthorized: (message?: string) => void;
}

interface ReviewReasonPrompt {
  entry: AdminGameDistributionReviewEntry;
}

/** 待审列表要展示的游戏名与作者：由既有后台作品列表接口按 gameId 反查得到。 */
interface ReviewGameMeta {
  title: string;
  authorName: string;
  authorId: string;
}

function applyFrozenGameMetadata(
  game: AdminGameDistributionGameDetail,
  metadata: Record<string, unknown> | null,
): AdminGameDistributionGameDetail {
  if (!metadata) return game;
  const screenshots = Array.isArray(metadata.screenshots)
    ? metadata.screenshots
        .map((item) =>
          item && typeof item === 'object' && 'objectKey' in item
            ? item.objectKey
            : null,
        )
        .filter(
          (value): value is string =>
            typeof value === 'string' && Boolean(value.trim()),
        )
    : game.screenshots;
  const deviceSupport =
    metadata.deviceSupport && typeof metadata.deviceSupport === 'object'
      ? { ...game.deviceSupport, ...metadata.deviceSupport }
      : game.deviceSupport;
  return {
    ...game,
    title: typeof metadata.title === 'string' ? metadata.title : game.title,
    summary:
      typeof metadata.summary === 'string' ? metadata.summary : game.summary,
    description:
      typeof metadata.description === 'string'
        ? metadata.description
        : game.description,
    category:
      typeof metadata.category === 'string' ? metadata.category : game.category,
    tags: Array.isArray(metadata.tags)
      ? metadata.tags.filter(
          (value): value is string => typeof value === 'string',
        )
      : game.tags,
    coverObjectKey:
      typeof metadata.coverObjectKey === 'string'
        ? metadata.coverObjectKey
        : game.coverObjectKey,
    screenshots,
    deviceSupport,
    inputModes: Array.isArray(metadata.inputModes)
      ? metadata.inputModes.filter(
          (value): value is string => typeof value === 'string',
        )
      : game.inputModes,
    orientation:
      typeof metadata.orientation === 'string'
        ? metadata.orientation
        : game.orientation,
  };
}

function formatBytes(value: number) {
  if (value >= 1024 * 1024) {
    return `${(value / (1024 * 1024)).toFixed(1)} MiB`;
  }
  if (value >= 1024) {
    return `${(value / 1024).toFixed(1)} KiB`;
  }
  return `${value} B`;
}

function createReviewIdempotencyKey(versionId: string) {
  const random =
    typeof crypto !== 'undefined' && 'randomUUID' in crypto
      ? crypto.randomUUID()
      : `${Date.now()}-${Math.random().toString(16).slice(2)}`;
  return `game-review-${versionId}-${random}`.slice(0, 128);
}

export function AdminGameDistributionReviewPage({
  token,
  onUnauthorized,
}: AdminGameDistributionReviewPageProps) {
  const [entries, setEntries] = useState<AdminGameDistributionReviewEntry[]>(
    [],
  );
  const [isLoading, setIsLoading] = useState(false);
  const [busyVersionId, setBusyVersionId] = useState('');
  const [errorMessage, setErrorMessage] = useState('');
  const [statusMessage, setStatusMessage] = useState('');
  const [reasonPrompt, setReasonPrompt] = useState<ReviewReasonPrompt | null>(
    null,
  );
  const [reasonDraft, setReasonDraft] = useState('');
  const [reasonError, setReasonError] = useState('');
  const [selectedEntry, setSelectedEntry] =
    useState<AdminGameDistributionReviewEntry | null>(null);
  const [detail, setDetail] =
    useState<AdminGameDistributionVersionDetailResponse | null>(null);
  const [isDetailLoading, setIsDetailLoading] = useState(false);
  const [detailError, setDetailError] = useState('');
  const [previewUrl, setPreviewUrl] = useState('');
  const [previewError, setPreviewError] = useState('');
  const [isPreviewLoading, setIsPreviewLoading] = useState(false);
  const [assetUrls, setAssetUrls] = useState<Record<string, string>>({});
  const [gameMetaByGameId, setGameMetaByGameId] = useState<
    Record<string, ReviewGameMeta>
  >({});
  // 同一 gameId 的标题/作者在会话内不变，缓存避免每次刷新重复反查。
  const gameMetaCacheRef = useRef<Record<string, ReviewGameMeta>>({});

  /**
   * 待审列表只回版本字段（无游戏名/作者），这里用既有后台作品列表接口按 gameId 反查，
   * 逐游戏一次请求并去重；单个游戏取不到只回落显示 gameId，不阻断审核列表。
   */
  const resolveGameMeta = useCallback(
    async (gameIds: string[]) => {
      const resolved = await Promise.all(
        gameIds.map(async (gameId) => {
          const cached = gameMetaCacheRef.current[gameId];
          if (cached) {
            return [gameId, cached] as const;
          }
          try {
            const response = await listAdminGameDistributionGames(token, {
              limit: 5,
              keyword: gameId,
            });
            const matched = response.games.find(
              (game) => game.gameId === gameId,
            );
            if (!matched) return null;
            const meta: ReviewGameMeta = {
              title: matched.title?.trim() || matched.gameId,
              authorName: matched.author?.name?.trim() || '',
              authorId: matched.author?.id?.trim() || '',
            };
            gameMetaCacheRef.current[gameId] = meta;
            return [gameId, meta] as const;
          } catch {
            return null;
          }
        }),
      );
      const merged = Object.fromEntries(
        resolved.filter(
          (item): item is readonly [string, ReviewGameMeta] => item !== null,
        ),
      );
      if (Object.keys(merged).length > 0) {
        setGameMetaByGameId((current) => ({ ...current, ...merged }));
      }
    },
    [token],
  );

  const loadReviews = useCallback(async () => {
    setIsLoading(true);
    setErrorMessage('');
    try {
      const response = await listAdminGameDistributionReviews(token);
      setEntries(response.entries);
      await resolveGameMeta([
        ...new Set(response.entries.map((entry) => entry.gameId)),
      ]);
    } catch (error) {
      handlePageError(error, onUnauthorized, setErrorMessage);
    } finally {
      setIsLoading(false);
    }
  }, [token, onUnauthorized, resolveGameMeta]);

  useEffect(() => {
    void loadReviews();
  }, [loadReviews]);

  async function openDetails(entry: AdminGameDistributionReviewEntry) {
    setSelectedEntry(entry);
    setDetail(null);
    setDetailError('');
    setPreviewUrl('');
    setPreviewError('');
    setAssetUrls({});
    setIsDetailLoading(true);
    try {
      const response = await getAdminGameDistributionVersion(
        token,
        entry.versionId,
      );
      const reviewGame = applyFrozenGameMetadata(
        response.game,
        response.version.frozenMetadata,
      );
      const reviewDetail = { ...response, game: reviewGame };
      setDetail(reviewDetail);
      const objectKeys = [
        reviewGame.coverObjectKey,
        ...reviewGame.screenshots,
      ].filter((value): value is string => Boolean(value?.trim()));
      const resolvedUrls = await Promise.all(
        objectKeys.map(async (objectKey) => {
          try {
            const asset = await getAdminAssetReadUrl(token, {
              objectKey,
              expireSeconds: 300,
            });
            return [
              objectKey,
              asset.read?.signedUrl ?? asset.signedUrl ?? '',
            ] as const;
          } catch {
            return [objectKey, ''] as const;
          }
        }),
      );
      setAssetUrls(Object.fromEntries(resolvedUrls));
    } catch (error) {
      handlePageError(error, onUnauthorized, setDetailError);
    } finally {
      setIsDetailLoading(false);
    }
  }

  function closeDetails() {
    setSelectedEntry(null);
    setDetail(null);
    setPreviewUrl('');
    setPreviewError('');
    setAssetUrls({});
  }

  async function startPreview() {
    if (!selectedEntry) return;
    setIsPreviewLoading(true);
    setPreviewError('');
    try {
      const response = await createAdminGameDistributionPreviewSession(
        token,
        selectedEntry.versionId,
      );
      setPreviewUrl(response.previewUrl);
    } catch (error) {
      handlePageError(error, onUnauthorized, setPreviewError);
    } finally {
      setIsPreviewLoading(false);
    }
  }

  async function submitReview(
    entry: AdminGameDistributionReviewEntry,
    decision: 'approve' | 'reject',
    reason = '',
  ) {
    const trimmedReason = reason.trim();
    if (decision === 'reject' && !trimmedReason) {
      setErrorMessage('拒绝审核必须填写理由');
      return;
    }
    setBusyVersionId(entry.versionId);
    setErrorMessage('');
    setStatusMessage('');
    try {
      await reviewAdminGameDistributionVersion(
        token,
        entry.versionId,
        createReviewIdempotencyKey(entry.versionId),
        decision === 'approve'
          ? {
              decision,
              expectedPublicationRevision: entry.publicationRevision,
            }
          : {
              decision,
              expectedPublicationRevision: entry.publicationRevision,
              reviewReason: trimmedReason,
            },
      );
      setStatusMessage(
        decision === 'approve'
          ? `版本 v${entry.versionNumber} 已通过审核`
          : `版本 v${entry.versionNumber} 已拒绝`,
      );
      await loadReviews();
    } catch (error) {
      handlePageError(error, onUnauthorized, setErrorMessage);
    } finally {
      setBusyVersionId('');
    }
  }

  /**
   * 待审版本行内只做版本级动作（详情 / 通过 / 拒绝）。管理员「安全下架」是游戏级
   * 动作（强制下线线上版本），入口在后台「游戏管理」页，不在审核新版本的语境里。
   */
  function openReasonPrompt(entry: AdminGameDistributionReviewEntry) {
    setReasonDraft('');
    setReasonError('');
    setReasonPrompt({ entry });
  }

  function closeReasonPrompt() {
    setReasonPrompt(null);
    setReasonDraft('');
    setReasonError('');
  }

  function confirmReasonPrompt() {
    if (!reasonPrompt) return;

    const reason = reasonDraft.trim();
    if (!reason) {
      setReasonError('拒绝审核必须填写理由');
      return;
    }

    const { entry } = reasonPrompt;
    closeReasonPrompt();
    void submitReview(entry, 'reject', reason);
  }

  if (selectedEntry) {
    return (
      <AdminGameDistributionReviewDetailView
        detail={detail}
        detailError={detailError}
        isDetailLoading={isDetailLoading}
        isPreviewLoading={isPreviewLoading}
        previewError={previewError}
        previewUrl={previewUrl}
        assetUrls={assetUrls}
        onBack={closeDetails}
        onPreview={() => void startPreview()}
        onReject={() => {
          const expectedEntry = detail
            ? {
                ...selectedEntry,
                publicationRevision: detail.game.publicationRevision,
              }
            : selectedEntry;
          closeDetails();
          openReasonPrompt(expectedEntry);
        }}
        onApprove={() => {
          const expectedEntry = detail
            ? {
                ...selectedEntry,
                publicationRevision: detail.game.publicationRevision,
              }
            : selectedEntry;
          closeDetails();
          void submitReview(expectedEntry, 'approve');
        }}
      />
    );
  }

  return (
    <AdminPage wide>
      <AdminPageHeading
        title="游戏审核"
        actions={
          <AdminButton
            variant="secondary"
            type="button"
            onClick={() => void loadReviews()}
            disabled={isLoading}
          >
            <RefreshCcw aria-hidden="true" />
            刷新
          </AdminButton>
        }
      />

      {errorMessage ? (
        <AdminAlert tone="warning" role="alert">
          {errorMessage}
        </AdminAlert>
      ) : null}
      {statusMessage ? (
        <AdminAlert tone="success">{statusMessage}</AdminAlert>
      ) : null}

      <AdminListPanel
        busy={isLoading}
        busyText="正在加载待审版本…"
        busyVariant="line"
        emptyText="当前没有待审核的游戏版本。"
        emptyVariant="text"
        title="待审版本"
        extra={<span className="admin-muted-text">共 {entries.length} 条</span>}
        rows={entries}
        size="wide"
        tableClassName="admin-game-review-table"
        columns={[
          { key: 'gameId', label: '游戏' },
          { key: 'versionNumber', label: '版本' },
          { key: 'packageBytes', label: '发行包' },
          { key: 'createdAt', label: '提交时间' },
          { key: 'actions', label: '审核' },
        ]}
        renderRow={(entry) => {
          const busy = busyVersionId === entry.versionId;
          const gameMeta = gameMetaByGameId[entry.gameId];
          return (
            <tr key={entry.versionId}>
              <td>
                {/* gameId 不再作为主展示，只留在悬浮标题里做兜底标识。 */}
                <div className="admin-game-review-game" title={entry.gameId}>
                  <span className="admin-table-cell-ellipsis">
                    {gameMeta?.title ?? entry.gameId}
                  </span>
                  <small className="admin-game-review-game-author admin-muted-text">
                    <span
                      className="admin-game-review-game-author-name"
                      title={gameMeta?.authorName || undefined}
                    >
                      {gameMeta?.authorName || '—'}
                    </span>
                    {gameMeta?.authorId ? (
                      <span
                        className="admin-game-review-game-author-id"
                        title={gameMeta.authorId}
                      >
                        {gameMeta.authorId}
                      </span>
                    ) : null}
                  </small>
                </div>
              </td>
              <td>
                v{entry.versionNumber}
                <div className="admin-muted-text">{entry.status}</div>
                {entry.reviewReason ? (
                  <div className="admin-muted-text">{entry.reviewReason}</div>
                ) : null}
              </td>
              <td>
                {formatBytes(entry.packageBytes)}
                <div className="admin-muted-text">
                  <code>{entry.packageSha256.slice(0, 12)}</code>
                </div>
              </td>
              <td>{formatAdminDateTime(entry.createdAt)}</td>
              <td className="admin-game-review-cell--actions">
                <AdminActionRow className="admin-review-actions">
                  <AdminButton
                    variant="secondary"
                    type="button"
                    disabled={busy}
                    onClick={() => void openDetails(entry)}
                  >
                    详情
                  </AdminButton>
                  <AdminButton
                    variant="primary"
                    type="button"
                    disabled={busy}
                    onClick={() => void submitReview(entry, 'approve')}
                  >
                    通过
                  </AdminButton>
                  <AdminButton
                    variant="ghost"
                    type="button"
                    disabled={busy}
                    onClick={() => openReasonPrompt(entry)}
                  >
                    拒绝
                  </AdminButton>
                </AdminActionRow>
              </td>
            </tr>
          );
        }}
      />
      {reasonPrompt ? (
        <Modal
          open
          title="拒绝审核"
          description={`${reasonPrompt.entry.gameId} · 版本 v${reasonPrompt.entry.versionNumber}`}
          closeLabel="关闭理由输入"
          onClose={closeReasonPrompt}
          size="sm"
          className="genarrative-ui"
          footer={
            <div
              className="admin-confirm-actions admin-review-actions"
              style={{
                width: '100%',
              }}
            >
              <AdminButton
                variant="secondary"
                type="button"
                onClick={closeReasonPrompt}
              >
                取消
              </AdminButton>
              <AdminButton
                type="button"
                variant="ghost"
                onClick={confirmReasonPrompt}
              >
                确认拒绝
              </AdminButton>
            </div>
          }
        >
          <TextField
            autoFocus
            multiline
            label="拒绝理由"
            value={reasonDraft}
            error={reasonError}
            rows={4}
            onChange={(event) => {
              setReasonDraft(event.target.value);
              if (reasonError) setReasonError('');
            }}
          />
        </Modal>
      ) : null}
    </AdminPage>
  );
}

function AdminGameDistributionReviewDetailView({
  detail,
  detailError,
  isDetailLoading,
  isPreviewLoading,
  previewError,
  previewUrl,
  assetUrls,
  onBack,
  onPreview,
  onReject,
  onApprove,
}: {
  detail: AdminGameDistributionVersionDetailResponse | null;
  detailError: string;
  isDetailLoading: boolean;
  isPreviewLoading: boolean;
  previewError: string;
  previewUrl: string;
  assetUrls: Record<string, string>;
  onBack: () => void;
  onPreview: () => void;
  onReject: () => void;
  onApprove: () => void;
}) {
  // 试玩会话是按 version 现建的：新会话必须回到加载态，不能沿用上一个会话的 ready。
  const [isPreviewFrameReady, setIsPreviewFrameReady] = useState(false);
  const [isPreviewTimedOut, setIsPreviewTimedOut] = useState(false);

  useEffect(() => {
    setIsPreviewFrameReady(false);
    setIsPreviewTimedOut(false);
    if (!previewUrl) return undefined;
    const timer = window.setTimeout(() => {
      setIsPreviewTimedOut(true);
    }, PLATFORM_GAME_LOADING_TIMEOUT_MS);
    return () => window.clearTimeout(timer);
  }, [previewUrl]);

  if (!detail) {
    return (
      <AdminPage wide>
        <AdminPageHeading title="审核详情" />
        {isDetailLoading ? <AdminAlert>正在加载审核详情…</AdminAlert> : null}
        {detailError ? (
          <AdminAlert tone="warning">{detailError}</AdminAlert>
        ) : null}
        <AdminButton variant="secondary" type="button" onClick={onBack}>
          返回审核列表
        </AdminButton>
      </AdminPage>
    );
  }

  const coverUrl = detail.game.coverObjectKey
    ? assetUrls[detail.game.coverObjectKey]
    : '';

  return (
    <AdminPage wide>
      <AdminPageHeading
        title={`${detail.game.title} · v${detail.version.versionNumber}`}
        actions={
          <AdminButton variant="secondary" type="button" onClick={onBack}>
            返回审核列表
          </AdminButton>
        }
      />
      {detailError ? (
        <AdminAlert tone="warning">{detailError}</AdminAlert>
      ) : null}
      <GameDetailDisplay
        className="platform-theme platform-theme--light admin-game-review-detail"
        game={detail.game}
        coverObjectKey={detail.game.coverObjectKey}
        screenshotObjectKeys={detail.game.screenshots}
        assetUrls={assetUrls}
        controlsLabel={detail.game.inputModes.join('、') || '未声明'}
        versionLabel={`v${detail.version.versionNumber}`}
        infoCards={[
          { label: '状态', value: detail.version.status },
          {
            label: '提交时间',
            value: formatAdminDateTime(detail.version.createdAt),
          },
          { label: '包大小', value: formatBytes(detail.version.packageBytes) },
          { label: '文件数', value: detail.version.packageFileCount },
          {
            label: 'SHA-256',
            value: <code>{detail.version.packageSha256}</code>,
          },
        ]}
        actions={
          <AdminActionRow className="admin-review-actions">
            <AdminButton
              variant="primary"
              type="button"
              disabled={isPreviewLoading}
              onClick={onPreview}
            >
              {isPreviewLoading ? '准备试玩…' : '试玩当前待审版本'}
            </AdminButton>
            <AdminButton variant="ghost" type="button" onClick={onReject}>
              拒绝
            </AdminButton>
            <AdminButton variant="primary" type="button" onClick={onApprove}>
              通过
            </AdminButton>
          </AdminActionRow>
        }
      >
        <section>
          <h2>版本审核</h2>
          <p>
            发布者：{detail.game.author.name} ·{' '}
            <code>{detail.game.author.id}</code>
          </p>
          {detail.version.reviewReason ? (
            <AdminAlert tone="warning">
              审核理由：{detail.version.reviewReason}
            </AdminAlert>
          ) : null}
          {detail.version.frozenMetadata ? (
            <details>
              <summary>查看版本冻结资料</summary>
              <pre className="admin-json-preview">
                {JSON.stringify(detail.version.frozenMetadata, null, 2)}
              </pre>
            </details>
          ) : null}
          {previewError ? (
            <AdminAlert tone="warning">{previewError}</AdminAlert>
          ) : null}
          {previewUrl ? (
            <div className="admin-game-review-preview-shell">
              {isPreviewFrameReady ? null : (
                <PlatformGameLoadingSurface
                  tone="panel"
                  title={detail.game.title}
                  cover={
                    coverUrl ? (
                      <img alt={`${detail.game.title} 封面`} src={coverUrl} />
                    ) : null
                  }
                  message={isPreviewTimedOut ? '试玩版本加载超时' : undefined}
                  hint={
                    isPreviewTimedOut
                      ? '可以重新创建试玩会话，或稍后再试。'
                      : undefined
                  }
                />
              )}
              <iframe
                title={`${detail.game.title} 待审版本试玩`}
                src={previewUrl}
                sandbox="allow-scripts"
                referrerPolicy="no-referrer"
                className="admin-game-review-preview"
                onLoad={() => setIsPreviewFrameReady(true)}
              />
            </div>
          ) : null}
          {previewUrl && isPreviewTimedOut && !isPreviewFrameReady ? (
            <AdminActionRow className="admin-review-actions">
              <AdminButton
                variant="secondary"
                type="button"
                disabled={isPreviewLoading}
                onClick={onPreview}
              >
                {isPreviewLoading ? '准备试玩…' : '重新创建试玩会话'}
              </AdminButton>
            </AdminActionRow>
          ) : null}
        </section>
      </GameDetailDisplay>
    </AdminPage>
  );
}