Разработана первая версия приложений

codebase/backend/frontend-test-site/src/reconcile.ts

@@ -0,0 +1,7 @@
+import type { Message } from "./types";
+
+export function reconcileMessages(current: Message[], incoming: Message[]) {
+  const byId = new Map(current.map((message) => [message.message_id, message]));
+  for (const message of incoming) byId.set(message.message_id, { ...byId.get(message.message_id), ...message });
+  return [...byId.values()].sort((a, b) => a.created_at.localeCompare(b.created_at));
+}