refactor: rename subplebbit to board

src/views/board/board.module.css

@@ -0,0 +1,9 @@
+.footer {
+  padding-top: 10px;
+}
+
+@media (max-width: 640px) {
+  .footer {
+    padding-left: 5px;
+  }
+}

src/views/board/board.tsx

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+import { useEffect, useMemo, useRef } from 'react';
+import { useParams } from 'react-router-dom';
+import { useFeed, useSubplebbit } from '@plebbit/plebbit-react-hooks';
+import { Virtuoso, VirtuosoHandle, StateSnapshot } from 'react-virtuoso';
+import { useTranslation } from 'react-i18next';
+import styles from './board.module.css';
+import useFeedStateString from '../../hooks/use-feed-state-string';
+import LoadingEllipsis from '../../components/loading-ellipsis';
+import Post from '../../components/post';
+import SubplebbitDescription from '../../components/subplebbit-description';
+import SubplebbitRules from '../../components/subplebbit-rules';
+
+const lastVirtuosoStates: { [key: string]: StateSnapshot } = {};
+
+const Subplebbit = () => {
+  const { t } = useTranslation();
+  const { subplebbitAddress } = useParams<{ subplebbitAddress: string }>();
+  const subplebbitAddresses = useMemo(() => [subplebbitAddress], [subplebbitAddress]) as string[];
+  const sortType = 'active';
+  const { feed, hasMore, loadMore } = useFeed({ subplebbitAddresses, sortType });
+
+  const subplebbit = useSubplebbit({ subplebbitAddress });
+  const { createdAt, description, rules, shortAddress, state, suggested, title } = subplebbit || {};
+
+  const loadingStateString = useFeedStateString(subplebbitAddresses) || t('loading');
+  const loadingString = <div className={styles.stateString}>{state === 'failed' ? state : <LoadingEllipsis string={loadingStateString} />}</div>;
+
+  const Footer = () => {
+    let footerContent;
+    if (feed.length === 0) {
+      footerContent = t('no_posts');
+    }
+    if (hasMore || subplebbitAddresses.length === 0) {
+      footerContent = loadingString;
+    }
+    return <div className={styles.footer}>{footerContent}</div>;
+  };
+
+  // save the last Virtuoso state to restore it when navigating back
+  const virtuosoRef = useRef<VirtuosoHandle | null>(null);
+  useEffect(() => {
+    const setLastVirtuosoState = () => {
+      virtuosoRef.current?.getState((snapshot: StateSnapshot) => {
+        if (snapshot?.ranges?.length) {
+          lastVirtuosoStates[subplebbitAddress + sortType] = snapshot;
+        }
+      });
+    };
+    window.addEventListener('scroll', setLastVirtuosoState);
+    return () => window.removeEventListener('scroll', setLastVirtuosoState);
+  }, [subplebbitAddress, sortType]);
+
+  const lastVirtuosoState = lastVirtuosoStates?.[subplebbitAddress + sortType];
+
+  useEffect(() => {
+    document.title = title ? title : shortAddress;
+  }, [title, shortAddress]);
+
+  return (
+    <div className={styles.content}>
+      {createdAt && (
+        <>
+          {rules && rules.length > 0 && <SubplebbitRules subplebbitAddress={subplebbitAddress} createdAt={createdAt} rules={rules} />}
+          {description && description.length > 0 && (
+            <SubplebbitDescription avatarUrl={suggested?.avatarUrl} subplebbitAddress={subplebbitAddress} createdAt={createdAt} description={description} title={title} />
+          )}
+        </>
+      )}
+      <Virtuoso
+        increaseViewportBy={{ bottom: 1200, top: 1200 }}
+        totalCount={feed?.length || 0}
+        data={feed}
+        itemContent={(index, post) => <Post index={index} post={post} />}
+        useWindowScroll={true}
+        components={{ Footer }}
+        endReached={loadMore}
+        ref={virtuosoRef}
+        restoreStateFrom={lastVirtuosoState}
+        initialScrollTop={lastVirtuosoState?.scrollTop}
+      />
+    </div>
+  );
+};
+
+export default Subplebbit;

src/views/board/index.ts

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+export { default } from './board';