feat: populate quotedCids when publishing replies with quote references

Parse reply content for >>{postNumber} references, resolve post numbers to CIDs via usePostNumberStore, and include resolved CIDs in publishCommentOptions when publishing. Extracted quote handling into reply-quote-utils.ts for testability and clarity.

src/hooks/use-publish-reply.ts

@@ -1,6 +1,8 @@
-import { useCallback } from 'react';
+import { useCallback, useMemo } from 'react';
 import { Comment, useAccount, usePublishComment } from '@plebbit/plebbit-react-hooks';
 import usePublishReplyStore from '../stores/use-publish-reply-store';
+import usePostNumberStore from '../stores/use-post-number-store';
+import { getQuotedCidsFromContent, mergeQuotedCids } from '../lib/utils/reply-quote-utils';
 
 const usePublishReply = ({ cid, subplebbitAddress, postCid }: { cid: string; subplebbitAddress: string; postCid?: string }) => {
   const parentCid = cid;
@@ -54,7 +56,12 @@ const usePublishReply = ({ cid, subplebbitAddress, postCid }: { cid: string; sub
 
   const resetPublishReplyOptions = useCallback(() => resetPublishReplyStore(parentCid), [parentCid, resetPublishReplyStore]);
 
-  const { index, publishComment } = usePublishComment(publishCommentOptions);
+  const numberToCid = usePostNumberStore((state) => state.numberToCid);
+  const quotedCids = useMemo(() => getQuotedCidsFromContent(content, numberToCid), [content, numberToCid]);
+
+  const publishOptions = useMemo(() => mergeQuotedCids(publishCommentOptions, quotedCids), [publishCommentOptions, quotedCids]);
+
+  const { index, publishComment } = usePublishComment(publishOptions);
 
   return {
     setPublishReplyOptions,

src/lib/utils/reply-quote-utils.ts

@@ -0,0 +1,23 @@
+import { QUOTE_NUMBER_REGEX } from './url-utils';
+
+export const getQuotedCidsFromContent = (content: string | undefined, numberToCid: Record<number, string>) => {
+  if (!content) return undefined;
+  const cids = new Set<string>();
+  for (const match of content.matchAll(new RegExp(QUOTE_NUMBER_REGEX.source, 'g'))) {
+    const num = parseInt(match[1], 10);
+    const cid = numberToCid[num];
+    if (cid) cids.add(cid);
+  }
+  return cids.size > 0 ? [...cids] : undefined;
+};
+
+export const mergeQuotedCids = (publishCommentOptions: Record<string, any> | undefined, quotedCids: string[] | undefined) => {
+  if (!publishCommentOptions || !quotedCids?.length) return publishCommentOptions;
+  const currentQuotedCids = publishCommentOptions.quotedCids ?? [];
+  const mergedQuotedCids = [...new Set([...currentQuotedCids, ...quotedCids])];
+
+  return {
+    ...publishCommentOptions,
+    quotedCids: mergedQuotedCids,
+  };
+};