fix(pending-post): return to board after abandoned challenge

src/views/mod-queue/__tests__/mod-queue.test.tsx

@@ -65,6 +65,13 @@ vi.mock('@bitsocial/bitsocial-react-hooks', () => ({
     },
     state: 'succeeded',
   }),
+  useCommunities: ({ communities }: { communities?: Array<{ name: string }> } = {}) => ({
+    communities: (communities ?? []).map(() => ({
+      roles: {
+        '0x123': { role: 'moderator' },
+      },
+    })),
+  }),
   useEditedComment: ({ comment }: { comment?: TestComment }) => ({
     editedComment: comment,
     failedEdits: {},

src/views/pending-post/__tests__/pending-post.test.tsx

@@ -16,8 +16,10 @@ type TestComment = {
 const testState = vi.hoisted(() => ({
   accountCommentIndex: undefined as string | undefined,
   accountComments: [] as TestComment[],
+  challengeCount: 0,
   directories: [] as Array<{ address: string; title?: string }>,
   getBoardPathMock: vi.fn<(address: string) => string>(),
+  locationState: null as { boardPath?: string } | null,
   navigateMock: vi.fn(),
   post: undefined as TestComment | undefined,
 }));
@@ -26,6 +28,9 @@ vi.mock('react-router-dom', async () => {
   const actual = await vi.importActual<typeof import('react-router-dom')>('react-router-dom');
   return {
     ...actual,
+    useLocation: () => ({
+      state: testState.locationState,
+    }),
     useNavigate: () => testState.navigateMock,
     useParams: () => ({
       accountCommentIndex: testState.accountCommentIndex,
@@ -49,6 +54,10 @@ vi.mock('../../../lib/utils/route-utils', () => ({
   getBoardPath: (address: string) => testState.getBoardPathMock(address),
 }));
 
+vi.mock('../../../stores/use-challenges-store', () => ({
+  default: (selector: (state: { challenges: unknown[] }) => unknown) => selector({ challenges: Array.from({ length: testState.challengeCount }) }),
+}));
+
 vi.mock('../../post', () => ({
   Post: ({ post }: { post?: TestComment }) => createElement('div', { 'data-testid': 'post-view' }, post?.cid ?? 'no-post'),
 }));
@@ -78,8 +87,10 @@ describe('PendingPost', () => {
     vi.clearAllMocks();
     testState.accountCommentIndex = undefined;
     testState.accountComments = [];
+    testState.challengeCount = 0;
     testState.directories = [];
     testState.getBoardPathMock.mockReset();
+    testState.locationState = null;
     testState.navigateMock.mockReset();
     testState.post = undefined;
 
@@ -151,6 +162,25 @@ describe('PendingPost', () => {
     expect(testState.navigateMock).not.toHaveBeenCalledWith('/not-found', { replace: true });
   });
 
+  it('redirects abandoned pending posts back to their board after the challenge closes', async () => {
+    testState.accountCommentIndex = '0';
+    testState.accountComments = [];
+    testState.challengeCount = 1;
+    testState.locationState = { boardPath: 'mu' };
+    testState.post = { index: 0 };
+
+    await renderPendingPost();
+
+    expect(testState.navigateMock).not.toHaveBeenCalled();
+
+    testState.challengeCount = 0;
+    testState.navigateMock.mockClear();
+
+    await renderPendingPost();
+
+    expect(testState.navigateMock).toHaveBeenCalledWith('/mu', { replace: true });
+  });
+
   it('redirects missing sparse pending account comment indices to not found', async () => {
     testState.accountCommentIndex = '0';
     testState.accountComments = [{ index: 1 }];

src/views/pending-post/pending-post.tsx

@@ -1,10 +1,11 @@
-import { useEffect } from 'react';
-import { useNavigate, useParams } from 'react-router-dom';
+import { useEffect, useRef } from 'react';
+import { useLocation, useNavigate, useParams } from 'react-router-dom';
 import { useAccountComments } from '@bitsocial/bitsocial-react-hooks';
 import { useDirectories } from '../../hooks/use-directories';
 import useSafeAccountComment from '../../hooks/use-safe-account-comment';
 import { getCommentCommunityAddress } from '../../lib/utils/comment-utils';
 import { getBoardPath } from '../../lib/utils/route-utils';
+import useChallengesStore from '../../stores/use-challenges-store';
 import { Post } from '../post';
 
 type PendingAccountComment = {
@@ -31,17 +32,40 @@ const hasPendingAccountCommentIndex = (accountComments: PendingAccountComment[]
   return hasExplicitIndices ? false : accountCommentIndex < accountComments.length;
 };
 
+const getPendingRouteBoardPath = (state: unknown): string | undefined => {
+  if (!state || typeof state !== 'object') {
+    return undefined;
+  }
+
+  const boardPath = (state as { boardPath?: unknown }).boardPath;
+  return typeof boardPath === 'string' && boardPath ? boardPath : undefined;
+};
+
 const PendingPost = () => {
   const { accountComments } = useAccountComments();
   const { accountCommentIndex } = useParams<{ accountCommentIndex?: string }>();
+  const location = useLocation();
   const normalizedAccountCommentIndex = accountCommentIndex === undefined ? undefined : Number(accountCommentIndex);
   const hasNormalizedAccountCommentIndex = normalizedAccountCommentIndex !== undefined && !Number.isNaN(normalizedAccountCommentIndex);
   const post = useSafeAccountComment({ commentIndex: accountCommentIndex });
+  const postCommunityAddress = getCommentCommunityAddress(post);
+  const hasAddressablePost = Boolean(post?.cid || postCommunityAddress);
   const navigate = useNavigate();
   const directories = useDirectories();
+  const routeBoardPath = getPendingRouteBoardPath(location.state);
+  const postBoardPath = postCommunityAddress ? getBoardPath(postCommunityAddress, directories) : undefined;
+  const pendingBoardPath = postBoardPath || routeBoardPath;
+  const hasActiveChallenge = useChallengesStore((state) => state.challenges.length > 0);
+  const lastPendingBoardRef = useRef<{ accountCommentIndex: number; boardPath: string } | null>(null);
 
   useEffect(() => window.scrollTo(0, 0), []);
 
+  useEffect(() => {
+    if (typeof normalizedAccountCommentIndex === 'number' && pendingBoardPath) {
+      lastPendingBoardRef.current = { accountCommentIndex: normalizedAccountCommentIndex, boardPath: pendingBoardPath };
+    }
+  }, [normalizedAccountCommentIndex, pendingBoardPath]);
+
   const isValidAccountCommentIndex =
     !accountCommentIndex ||
     (hasNormalizedAccountCommentIndex &&
@@ -51,17 +75,31 @@ const PendingPost = () => {
 
   useEffect(() => {
     if (!isValidAccountCommentIndex) {
-      navigate('/not-found', { replace: true });
+      const lastPendingBoard = lastPendingBoardRef.current;
+      const abandonedBoardPath =
+        !hasActiveChallenge && lastPendingBoard && lastPendingBoard.accountCommentIndex === normalizedAccountCommentIndex ? lastPendingBoard.boardPath : undefined;
+      navigate(abandonedBoardPath ? `/${abandonedBoardPath}` : '/not-found', { replace: true });
     }
-  }, [isValidAccountCommentIndex, navigate]);
+  }, [hasActiveChallenge, isValidAccountCommentIndex, navigate, normalizedAccountCommentIndex]);
 
   useEffect(() => {
-    const postCommunityAddress = getCommentCommunityAddress(post);
-    if (post?.cid && postCommunityAddress) {
-      const boardPath = getBoardPath(postCommunityAddress, directories);
-      navigate(`/${boardPath}/thread/${post.cid}`, { replace: true });
+    if (post?.cid && postBoardPath) {
+      navigate(`/${postBoardPath}/thread/${post.cid}`, { replace: true });
     }
-  }, [post, navigate, directories]);
+  }, [post?.cid, postBoardPath, navigate]);
+
+  useEffect(() => {
+    if (hasAddressablePost || !isValidAccountCommentIndex) {
+      return;
+    }
+
+    const lastPendingBoard = lastPendingBoardRef.current;
+    const abandonedBoardPath =
+      !hasActiveChallenge && lastPendingBoard && lastPendingBoard.accountCommentIndex === normalizedAccountCommentIndex ? lastPendingBoard.boardPath : undefined;
+    if (abandonedBoardPath) {
+      navigate(`/${abandonedBoardPath}`, { replace: true });
+    }
+  }, [hasActiveChallenge, hasAddressablePost, isValidAccountCommentIndex, navigate, normalizedAccountCommentIndex]);
 
   return <Post post={post} />;
 };