Files
5chan/src/views/catalog/catalog.tsx
T

663 lines
27 KiB
TypeScript

import { useDeferredValue, useEffect, useMemo, useRef, useCallback, useLayoutEffect } from 'react';
import { useLocation, useNavigate, useNavigationType, useParams } from 'react-router-dom';
import { useTranslation } from 'react-i18next';
import { Comment, useAccount, useCommunity, useFeed, useAccountComments } from '@bitsocialnet/bitsocial-react-hooks';
import { Virtuoso, VirtuosoHandle, StateSnapshot } from 'react-virtuoso';
import { useDirectories, useDirectoryByAddress } from '../../hooks/use-directories';
import { useCommunityIdentifier, useCommunityIdentifiers } from '../../hooks/use-community-identifiers';
import { useBoardFeedPageSize } from '../../hooks/use-board-feed-page-size';
import { useFilteredDirectoryAddresses } from '../../hooks/use-filtered-directory-addresses';
import { useResolvedCommunityAddress } from '../../hooks/use-resolved-community-address';
import { useFeedStateString } from '../../hooks/use-state-string';
import useIsMobile from '../../hooks/use-is-mobile';
import useWindowWidth from '../../hooks/use-window-width';
import useCatalogStyleStore from '../../stores/use-catalog-style-store';
import useFeedResetStore from '../../stores/use-feed-reset-store';
import useSortingStore from '../../stores/use-sorting-store';
import useCatalogFiltersStore from '../../stores/use-catalog-filters-store';
import { getCommunityAddress, isDirectoryBoard, normalizeMultiboardFeedPath } from '../../lib/utils/route-utils';
import CatalogRow from '../../components/catalog-row';
import { CatalogFooterFirstRow, PageFooterDesktop, PageFooterMobile } from '../../components/footer';
import { ReturnButton, ArchiveButton, TopButton, RefreshButton } from '../../components/board-buttons/board-buttons';
import mobileFooterStyles from '../../components/footer/footer.module.css';
import LoadingEllipsis from '../../components/loading-ellipsis';
import ErrorDisplay from '../../components/error-display/error-display';
import styles from './catalog.module.css';
import { commentMatchesPattern } from '../../lib/utils/pattern-utils';
import { isCommentArchived } from '../../lib/utils/comment-moderation-utils';
import { sortCatalogFeedForDisplay } from '../../lib/utils/catalog-sort';
import { getCommentCommunityAddress } from '../../lib/utils/comment-utils';
import {
getCatalogRowHeightEstimates,
getPretextItemSizeFromElement,
getTypicalCatalogRowHeight,
readReplyTypographyMetrics,
resolveCatalogVirtualizationMode,
} from '../../lib/utils/pretext-height-estimates';
const lastVirtuosoStates: { [key: string]: StateSnapshot } = {};
const RECENT_ACCOUNT_COMMENT_WINDOW_SECONDS = 60 * 60;
// Keep the hook on its indexed fast path when this view should not inject local posts.
const EMPTY_ACCOUNT_COMMENT_LOOKUP = { commentIndices: [-1] };
export const getCatalogRenderFeed = <T,>(processedFeed: readonly T[], deferredProcessedFeed: readonly T[]): readonly T[] =>
deferredProcessedFeed.length === 0 && processedFeed.length > 0 ? processedFeed : deferredProcessedFeed;
interface CatalogFooterProps {
communityAddresses: string[];
hasMore: boolean;
combinedFeedLength: number;
/** When false, suppress the loading ellipsis (e.g. non-infinite mode) */
showLoadingEllipsis?: boolean;
}
// Defined outside Catalog to preserve component identity across renders (Virtuoso optimization)
// The useFeedStateString hook is called here instead of in Catalog to isolate re-renders
// caused by backend IPFS state changes to just this footer component
const CatalogFooter = ({ communityAddresses, hasMore, combinedFeedLength, showLoadingEllipsis = true }: CatalogFooterProps) => {
const { t } = useTranslation();
const loadingStateString = useFeedStateString(communityAddresses) || (combinedFeedLength === 0 ? t('loading_feed') : t('looking_for_more_posts'));
let footerContent;
if (combinedFeedLength === 0) {
footerContent = t('no_threads');
}
if (hasMore || (communityAddresses && communityAddresses.length === 0)) {
footerContent = (
<>
{showLoadingEllipsis && (
<div className={styles.stateString}>
<LoadingEllipsis string={loadingStateString} />
</div>
)}
</>
);
}
return <div className={styles.footer}>{footerContent}</div>;
};
// Separate component for the loading state when there's no feed
// This also calls useFeedStateString internally to isolate re-renders
interface CatalogLoadingProps {
communityAddresses: string[];
hasMore: boolean;
combinedFeedLength: number;
state: string | undefined;
subscriptionsLength: number;
error: Error | undefined;
}
const CatalogLoading = ({ communityAddresses, hasMore, combinedFeedLength, state, subscriptionsLength, error }: CatalogLoadingProps) => {
const { t } = useTranslation();
const rawFeedStateString = useFeedStateString(communityAddresses);
const loadingStateString = rawFeedStateString || (combinedFeedLength === 0 ? t('loading_feed') : t('looking_for_more_posts'));
return (
<div className={styles.stateString}>
{state === 'failed' ? (
<span className='red'>{state}</span>
) : subscriptionsLength === 0 ? (
<span className='red'>{t('not_subscribed_to_any_board')}</span>
) : !hasMore && combinedFeedLength === 0 ? (
t('no_threads')
) : (
hasMore && <LoadingEllipsis string={loadingStateString} />
)}
<ErrorDisplay error={error} />
</div>
);
};
const createContentFilter = (
filterItems: { text: string; enabled: boolean; count: number; filteredCids: Set<string>; hide: boolean; top: boolean; color?: string }[],
communityAddress: string,
onFilterMatch?: (filterIndex: number, cid: string, communityAddress: string) => void,
) => {
// Create a unique key based on the enabled filter items
const enabledFilters = filterItems.filter((item) => item.enabled && item.text.trim() !== '');
const filterKey =
enabledFilters.length > 0
? `content-filter-${enabledFilters.map((item) => `${item.text}-${item.hide ? 'hide' : ''}-${item.top ? 'top' : ''}`).join('-')}`
: 'no-content-filter';
return {
filter: (comment: Comment) => {
if (!comment?.cid) return true;
if (enabledFilters.length === 0) return true;
// Check if any enabled filter matches the content
for (let i = 0; i < enabledFilters.length; i++) {
const item = enabledFilters[i];
const pattern = item.text;
if (commentMatchesPattern(comment, pattern)) {
// Find the original filter index to increment count
const filterIndex = filterItems.findIndex((f) => f.text === item.text && f.enabled);
if (filterIndex !== -1) {
if (onFilterMatch) {
onFilterMatch(filterIndex, comment.cid, communityAddress);
} else {
// Fallback to the store method if no callback provided
useCatalogFiltersStore.getState().incrementFilterCount(filterIndex, comment.cid, communityAddress);
}
}
// If this filter is set to hide, filter out the comment
if (item.hide) {
return false;
}
// If this filter is set to top, we'll handle it separately in the component
// (we don't filter it out here)
}
}
return true;
},
key: filterKey,
};
};
const createCombinedFilter = (
filterItems: { text: string; enabled: boolean; count: number; filteredCids: Set<string>; hide: boolean; top: boolean; color?: string }[],
searchText: string,
communityAddress: string,
onFilterMatch?: (filterIndex: number, cid: string, communityAddress: string) => void,
) => {
const contentFilter = createContentFilter(filterItems, communityAddress, onFilterMatch);
const searchFilter = {
filter: (comment: Comment) => {
if (!searchText.trim()) return true;
return commentMatchesPattern(comment, searchText);
},
key: searchText ? `search-filter-${searchText}` : 'no-search-filter',
};
return {
filter: (comment: Comment) => {
if (isCommentArchived(comment)) return false;
if (!contentFilter.filter(comment)) return false;
if (!searchFilter.filter(comment)) return false;
return true;
},
key: `${contentFilter.key}-${searchFilter.key}-exclude-archived`,
};
};
export interface CatalogProps {
feedCacheKey?: string;
viewType?: 'all' | 'subs' | 'mod' | 'board';
boardIdentifier?: string;
isVisible?: boolean;
}
const Catalog = ({ feedCacheKey, viewType, boardIdentifier: boardIdentifierProp, isVisible = true }: CatalogProps) => {
const { t } = useTranslation();
const location = useLocation();
const navigate = useNavigate();
const params = useParams();
const isInAllView = viewType ? viewType === 'all' : false;
const isInSubscriptionsView = viewType ? viewType === 'subs' : false;
const isInModView = viewType ? viewType === 'mod' : false;
const isMultiboard = isInAllView || isInSubscriptionsView || isInModView;
// Single-board catalogs always cap at maxGuiPages (no infinite scroll beyond the board's page limit)
const effectiveInfiniteScroll = isMultiboard;
const directories = useDirectories();
const resolvedAddressFromUrl = useResolvedCommunityAddress();
const communityAddress = useMemo(() => {
if (boardIdentifierProp) {
return getCommunityAddress(boardIdentifierProp, directories);
}
return resolvedAddressFromUrl;
}, [boardIdentifierProp, directories, resolvedAddressFromUrl]);
const { filterItems, searchText } = useCatalogFiltersStore();
const account = useAccount();
const subscriptions = account?.subscriptions;
const filteredDirectoryAddresses = useFilteredDirectoryAddresses();
const communityAddresses = useMemo(() => {
if (isInAllView) {
return filteredDirectoryAddresses;
}
if (isInSubscriptionsView) {
return (subscriptions || []).filter(Boolean); // Filter out any undefined/null values
}
// Only include communityAddress if it's defined
return communityAddress ? [communityAddress] : [];
}, [isInAllView, isInSubscriptionsView, communityAddress, filteredDirectoryAddresses, subscriptions]);
const communities = useCommunityIdentifiers(communityAddresses);
const communityIdentifier = useCommunityIdentifier(communityAddress);
const { imageSize, showOPComment } = useCatalogStyleStore();
const columnWidth = imageSize === 'Large' ? 270 : 180;
const windowWidth = useWindowWidth();
const isMobile = useIsMobile();
const columnCount = Math.floor(windowWidth / columnWidth);
const multiboardCatalogPostsPerPage = Math.max(18, Math.min(24, Math.max(columnCount, 1) * 5));
const communityDirectory = useDirectoryByAddress(isInAllView || isInSubscriptionsView || isInModView ? undefined : communityAddress);
const { guiPostsPerPage: boardPostsPerPage, maxGuiPages, paginationFeedPostsPerPage } = useBoardFeedPageSize(communityDirectory);
// Canonical redirect for multiboard catalog paths with numeric page segment (e.g. /all/catalog/1w/5 -> /all/catalog/1w)
useEffect(() => {
if (!(isInAllView || isInSubscriptionsView || isInModView)) return;
const canonical = normalizeMultiboardFeedPath(location.pathname);
if (location.pathname !== canonical) {
navigate(canonical, { replace: true });
}
}, [isInAllView, isInSubscriptionsView, isInModView, location.pathname, navigate]);
const { sortType } = useSortingStore();
const feedSortType = sortType === 'new' ? 'new' : 'active';
const catalogVirtualizationMode = useMemo(() => resolveCatalogVirtualizationMode(location.search, 'item-size'), [location.search]);
const themeKey = typeof document !== 'undefined' ? document.body.className : '';
// Create a stable callback for filter matching
const handleFilterMatch = useCallback((filterIndex: number, cid: string, communityAddress: string) => {
useCatalogFiltersStore.getState().incrementFilterCount(filterIndex, cid, communityAddress);
}, []);
// Set the current community address
useEffect(() => {
useCatalogFiltersStore.getState().setCurrentCommunityAddress(communityAddress || null);
return () => {
useCatalogFiltersStore.getState().setCurrentCommunityAddress(null);
};
}, [communityAddress]);
const feedOptions = useMemo(() => {
return {
communities,
sortType: feedSortType,
postsPerPage: isMultiboard ? multiboardCatalogPostsPerPage : paginationFeedPostsPerPage,
filter: createCombinedFilter(filterItems, searchText, communityAddress || 'all', handleFilterMatch),
};
}, [communities, feedSortType, isMultiboard, paginationFeedPostsPerPage, multiboardCatalogPostsPerPage, filterItems, searchText, communityAddress, handleFilterMatch]);
const { feed, hasMore, loadMore, reset } = useFeed(feedOptions);
const accountCommentLookupOptions = useMemo(
() =>
communityAddress
? {
communityAddress,
newerThan: RECENT_ACCOUNT_COMMENT_WINDOW_SECONDS,
sortType: 'old' as const,
}
: EMPTY_ACCOUNT_COMMENT_LOOKUP,
[communityAddress],
);
const { accountComments: recentAccountComments } = useAccountComments(accountCommentLookupOptions);
const resetTriggeredRef = useRef(false);
// show account comments instantly in the feed once published (cid defined), instead of waiting for the feed to update
const feedCids = useMemo(() => new Set(feed.map((f) => f.cid)), [feed]);
const filteredComments = useMemo(
() =>
recentAccountComments.filter((comment) => {
const { cid, deleted, postCid, removed, state, timestamp } = comment || {};
const commentCommunityAddress = getCommentCommunityAddress(comment);
// Basic filtering conditions
const basicConditions =
!deleted &&
!removed &&
timestamp > Date.now() / 1000 - RECENT_ACCOUNT_COMMENT_WINDOW_SECONDS &&
state === 'succeeded' &&
cid &&
cid === postCid &&
commentCommunityAddress === communityAddress &&
!feedCids.has(cid);
// If search is active, also check search conditions
if (basicConditions && searchText.trim()) {
const titleLower = comment?.title?.toLowerCase() || '';
const contentLower = comment?.content?.toLowerCase() || '';
const searchPattern = searchText.toLowerCase();
return titleLower.includes(searchPattern) || contentLower.includes(searchPattern);
}
return basicConditions;
}),
[recentAccountComments, communityAddress, feedCids, searchText],
);
// show newest account comment at the top of the feed but after pinned posts
const combinedFeed = useMemo(() => {
const newFeed = [...feed];
const lastPinnedIndex = newFeed.map((post) => post.pinned).lastIndexOf(true);
if (filteredComments.length > 0) {
newFeed.splice(lastPinnedIndex + 1, 0, ...filteredComments);
}
return newFeed;
}, [feed, filteredComments]);
const cappedFeed = useMemo(
() => (effectiveInfiniteScroll ? combinedFeed : combinedFeed.slice(0, boardPostsPerPage * maxGuiPages)),
[effectiveInfiniteScroll, combinedFeed, boardPostsPerPage, maxGuiPages],
);
const sortedFeed = useMemo(() => sortCatalogFeedForDisplay(cappedFeed, sortType), [cappedFeed, sortType]);
useEffect(() => {
if (filteredComments.length > 0 && !resetTriggeredRef.current) {
reset();
resetTriggeredRef.current = true;
}
}, [filteredComments, reset]);
// suggest the user to change time filter if there aren't enough posts
const setResetFunction = useFeedResetStore((state) => state.setResetFunction);
useEffect(() => {
if (isVisible) {
setResetFunction(reset);
}
}, [reset, setResetFunction, isVisible]);
const community = useCommunity(communityIdentifier ? { community: communityIdentifier } : undefined);
const { error, shortAddress, state, title } = community || {};
// Memoize footer component to preserve identity across renders (Virtuoso optimization)
// Note: useFeedStateString is called inside CatalogFooter to isolate re-renders from backend state changes
const footerComponents = useMemo(
() => ({
Footer: () => (
<>
<CatalogFooter communityAddresses={communityAddresses} hasMore={hasMore} combinedFeedLength={cappedFeed.length} showLoadingEllipsis={effectiveInfiniteScroll} />
<PageFooterDesktop
firstRow={
<CatalogFooterFirstRow
communityAddress={communityAddress}
isInAllView={isInAllView}
isInSubscriptionsView={isInSubscriptionsView}
isInModView={isInModView}
/>
}
/>
<PageFooterMobile>
<div className={mobileFooterStyles.mobileFooterButtons}>
<ReturnButton address={communityAddress} isInAllView={isInAllView} isInSubscriptionsView={isInSubscriptionsView} isInModView={isInModView} />
<ArchiveButton address={communityAddress} isInAllView={isInAllView} isInSubscriptionsView={isInSubscriptionsView} isInModView={isInModView} />
<TopButton />
<RefreshButton />
</div>
</PageFooterMobile>
</>
),
}),
[communityAddresses, hasMore, cappedFeed.length, communityAddress, isInAllView, isInSubscriptionsView, isInModView, effectiveInfiniteScroll],
);
const catalogFooter = useMemo(
() => (
<>
<CatalogFooter communityAddresses={communityAddresses} hasMore={hasMore} combinedFeedLength={cappedFeed.length} showLoadingEllipsis={effectiveInfiniteScroll} />
<PageFooterDesktop
firstRow={
<CatalogFooterFirstRow
communityAddress={communityAddress}
isInAllView={isInAllView}
isInSubscriptionsView={isInSubscriptionsView}
isInModView={isInModView}
/>
}
/>
<PageFooterMobile>
<div className={mobileFooterStyles.mobileFooterButtons}>
<ReturnButton address={communityAddress} isInAllView={isInAllView} isInSubscriptionsView={isInSubscriptionsView} isInModView={isInModView} />
<ArchiveButton address={communityAddress} isInAllView={isInAllView} isInSubscriptionsView={isInSubscriptionsView} isInModView={isInModView} />
<TopButton />
<RefreshButton />
</div>
</PageFooterMobile>
</>
),
[communityAddresses, hasMore, cappedFeed.length, communityAddress, isInAllView, isInSubscriptionsView, isInModView, effectiveInfiniteScroll],
);
const isFeedLoaded = feed.length > 0 || state === 'failed';
// Process the feed to move "top" posts to the top (applied after display sort)
const processedFeed = useMemo(() => {
if (!sortedFeed || sortedFeed.length === 0) return sortedFeed;
const enabledTopFilters = filterItems.filter((item) => item.enabled && item.text.trim() !== '' && item.top);
if (enabledTopFilters.length === 0) return sortedFeed;
// Separate posts that match "top" filters
const topPosts: Comment[] = [];
const regularPosts: Comment[] = [];
sortedFeed.forEach((comment) => {
if (!comment) return;
let isTop = false;
for (const filter of enabledTopFilters) {
if (commentMatchesPattern(comment, filter.text)) {
isTop = true;
break;
}
}
if (isTop) {
topPosts.push(comment);
} else {
regularPosts.push(comment);
}
});
// Return top posts followed by regular posts
return [...topPosts, ...regularPosts];
}, [sortedFeed, filterItems]);
const deferredProcessedFeed = useDeferredValue(processedFeed);
const catalogRenderFeed = getCatalogRenderFeed(processedFeed, deferredProcessedFeed);
const matchedFilterColors = useMemo(() => {
const nextMatchedFilterColors = new Map<string, string>();
const activeColoredFilters = filterItems.filter((item) => item.enabled && item.text.trim() !== '' && item.color);
if (activeColoredFilters.length === 0) {
return nextMatchedFilterColors;
}
for (const comment of catalogRenderFeed) {
const cid = comment?.cid;
if (!cid) {
continue;
}
const firstMatch = activeColoredFilters.find((item) => commentMatchesPattern(comment, item.text));
if (firstMatch?.color) {
nextMatchedFilterColors.set(cid, firstMatch.color);
}
}
return nextMatchedFilterColors;
}, [catalogRenderFeed, filterItems]);
const rowCacheRef = useRef(new Map<string, Comment[]>());
const rows = useMemo(() => {
if (!isFeedLoaded) {
rowCacheRef.current.clear();
return [];
}
const effectiveColumnCount = Math.max(columnCount, 1);
const nextRows: Comment[][] = [];
const nextRowCache = new Map<string, Comment[]>();
for (let i = 0; i < catalogRenderFeed.length; i += effectiveColumnCount) {
const nextRow = catalogRenderFeed.slice(i, i + effectiveColumnCount);
const rowKey = nextRow.map((post) => post?.cid || '').join('\u0000');
const cachedRow = rowCacheRef.current.get(rowKey);
const stableRow = cachedRow && cachedRow.length === nextRow.length && cachedRow.every((post, index) => post === nextRow[index]) ? cachedRow : nextRow;
nextRowCache.set(rowKey, stableRow);
nextRows.push(stableRow);
}
rowCacheRef.current = nextRowCache;
return nextRows;
}, [catalogRenderFeed, columnCount, isFeedLoaded]);
const catalogMetrics = useMemo(() => readReplyTypographyMetrics(), [themeKey, windowWidth]);
const rowHeightEstimates = useMemo(
() =>
catalogVirtualizationMode === 'off'
? []
: getCatalogRowHeightEstimates({
imageSize,
metrics: catalogMetrics,
rows,
showOPComment,
}),
[catalogMetrics, catalogVirtualizationMode, imageSize, rows, showOPComment],
);
const defaultCatalogRowHeight = useMemo(() => getTypicalCatalogRowHeight(rowHeightEstimates, imageSize), [imageSize, rowHeightEstimates]);
// Omit the prop entirely in fallback mode. Passing `itemSize={undefined}` overrides
// Virtuoso's default DOM measurement path and leaves rows on the fallback height.
const catalogSizingProps = useMemo(() => (catalogVirtualizationMode === 'item-size' ? { itemSize: getPretextItemSizeFromElement } : {}), [catalogVirtualizationMode]);
const isMultiboardView = isInAllView || isInSubscriptionsView || isInModView;
const shouldVirtualizeCatalog = isMultiboardView;
const catalogViewportBuffer = isMultiboardView ? (isMobile ? { bottom: 2400, top: 1200 } : { bottom: 900, top: 600 }) : { bottom: 1200, top: 1200 };
const virtuosoRef = useRef<VirtuosoHandle | null>(null);
const virtuosoStateKey = feedCacheKey ? `${feedCacheKey}-${sortType}` : `${location.pathname}-${sortType}-catalog`;
const navigationType = useNavigationType();
const hasBeenVisibleRef = useRef(false);
useEffect(() => {
if (isVisible && !hasBeenVisibleRef.current) {
hasBeenVisibleRef.current = true;
if (navigationType !== 'POP') {
window.scrollTo({ top: 0, left: 0, behavior: 'auto' });
}
}
}, [isVisible, navigationType]);
useLayoutEffect(() => {
if (!isVisible || !shouldVirtualizeCatalog) return;
const currentKey = virtuosoStateKey;
// Avoid pulling Virtuoso state on every scroll tick in the catalog hot path.
const saveVirtuosoState = () =>
virtuosoRef.current?.getState((snapshot: StateSnapshot) => {
if (snapshot?.ranges?.length) {
lastVirtuosoStates[currentKey] = snapshot;
}
});
window.addEventListener('pagehide', saveVirtuosoState);
return () => {
saveVirtuosoState();
window.removeEventListener('pagehide', saveVirtuosoState);
};
}, [virtuosoStateKey, isVisible, shouldVirtualizeCatalog]);
const lastVirtuosoState = shouldVirtualizeCatalog && navigationType === 'POP' ? lastVirtuosoStates?.[virtuosoStateKey] : undefined;
const renderCatalogRow = useCallback(
(index: number, row: Comment[]) => <CatalogRow estimatedHeight={rowHeightEstimates[index]} index={index} matchedFilterColors={matchedFilterColors} row={row} />,
[matchedFilterColors, rowHeightEstimates],
);
useEffect(() => {
if (!isVisible) return;
const boardIdentifier = params.boardIdentifier || boardIdentifierProp;
const isDirectory = boardIdentifier ? isDirectoryBoard(boardIdentifier, directories) : false;
let documentTitle: string;
if (isInAllView) {
documentTitle = t('all');
} else if (isInSubscriptionsView) {
documentTitle = t('subscriptions');
} else if (isDirectory) {
documentTitle = `/${boardIdentifier}/`;
} else {
documentTitle = title ? title : shortAddress || communityAddress || '';
}
document.title = documentTitle + ` - ${t('catalog')} - 5chan`;
}, [title, shortAddress, communityAddress, isInAllView, isInSubscriptionsView, t, isVisible, params.boardIdentifier, boardIdentifierProp, directories]);
return (
<div className={styles.content}>
<hr />
<div className={styles.catalog}>
{catalogRenderFeed.length !== 0 ? (
<>
{shouldVirtualizeCatalog ? (
<Virtuoso
defaultItemHeight={defaultCatalogRowHeight}
heightEstimates={catalogVirtualizationMode === 'off' ? undefined : rowHeightEstimates}
increaseViewportBy={catalogViewportBuffer}
{...catalogSizingProps}
totalCount={rows?.length || 0}
data={rows}
itemContent={renderCatalogRow}
useWindowScroll={true}
components={footerComponents}
endReached={effectiveInfiniteScroll && hasMore ? loadMore : undefined}
ref={virtuosoRef}
restoreStateFrom={lastVirtuosoState}
initialScrollTop={lastVirtuosoState?.scrollTop}
/>
) : (
<>
{rows.map((row, index) => (
<CatalogRow
key={row.map((post) => post?.cid || '').join('\u0000') || `row-${index}`}
estimatedHeight={rowHeightEstimates[index]}
index={index}
matchedFilterColors={matchedFilterColors}
row={row}
/>
))}
{catalogFooter}
</>
)}
</>
) : (
<>
<div className={styles.footer}>
<CatalogLoading
communityAddresses={communityAddresses}
hasMore={hasMore}
combinedFeedLength={cappedFeed.length}
state={state}
subscriptionsLength={isInSubscriptionsView ? subscriptions?.length || 0 : 1}
error={error}
/>
</div>
<PageFooterDesktop
firstRow={
<CatalogFooterFirstRow
communityAddress={communityAddress}
isInAllView={isInAllView}
isInSubscriptionsView={isInSubscriptionsView}
isInModView={isInModView}
/>
}
/>
<PageFooterMobile>
<div className={mobileFooterStyles.mobileFooterButtons}>
<ReturnButton address={communityAddress} isInAllView={isInAllView} isInSubscriptionsView={isInSubscriptionsView} isInModView={isInModView} />
<ArchiveButton address={communityAddress} isInAllView={isInAllView} isInSubscriptionsView={isInSubscriptionsView} isInModView={isInModView} />
<TopButton />
<RefreshButton />
</div>
</PageFooterMobile>
</>
)}
</div>
</div>
);
};
export default Catalog;