Show invited people the Rule, let them copy its cards for their community, and replace an expired invitation link.

lib/create/copiedRuleDocument.ts

@@ -0,0 +1,59 @@
+import type { CommunityRuleSection } from "../../app/components/type/CommunityRule/CommunityRule.types";
+import { parsePublishedDocumentForCommunityRuleDisplay } from "./publishedDocumentToDisplaySections";
+
+const IDENTITY_KEYS = [
+  "communityAvatarUrl",
+  "communityAvatarFileName",
+  "communityContext",
+  "communityLocation",
+  "communitySaveEmail",
+  "title",
+] as const;
+
+export type CopiedNameHit = {
+  categoryName: string;
+  entryTitle: string;
+};
+
+/** Copy cards and text; drop name, description, photo, and save-email. */
+export function stripCopiedRuleDocument(
+  document: unknown,
+): Record<string, unknown> {
+  if (!document || typeof document !== "object" || Array.isArray(document)) {
+    return {};
+  }
+  const copy = structuredClone(document) as Record<string, unknown>;
+  for (const key of IDENTITY_KEYS) {
+    delete copy[key];
+  }
+  return copy;
+}
+
+function entryHaystack(entry: CommunityRuleSection["entries"][number]): string {
+  const blockText = (entry.blocks ?? [])
+    .map((block) => `${block.label} ${block.body}`)
+    .join("\n");
+  return `${entry.title}\n${entry.body}\n${blockText}`;
+}
+
+/** First line that still names the original community after a copy. */
+export function findCopiedNameHit(
+  document: unknown,
+  originalName: string,
+): CopiedNameHit | null {
+  const name = originalName.trim();
+  if (name.length < 2) return null;
+  const needle = name.toLowerCase();
+  const sections = parsePublishedDocumentForCommunityRuleDisplay(document);
+  for (const section of sections) {
+    for (const entry of section.entries) {
+      if (entryHaystack(entry).toLowerCase().includes(needle)) {
+        return {
+          categoryName: section.categoryName,
+          entryTitle: entry.title,
+        };
+      }
+    }
+  }
+  return null;
+}