import {
  chatSessionMetadataPatchSchema,
  extractChatSessionMetadataPatch,
} from "@/lib/chat-session-write-contract";

export function metadataUpdateValues(payload: unknown): Record<string, unknown> | null {
  const parsed = chatSessionMetadataPatchSchema.safeParse(extractChatSessionMetadataPatch(payload));
  if (!parsed.success) return null;
  return { ...parsed.data };
}