assistant-cloud/dist/FormattedCloudPersistence.d.ts

Cloud integration for assistant-ui

import { ReadonlyJSONObject } from "assistant-stream/utils";
//#region src/FormattedCloudPersistence.d.ts
/**
 * Format adapter shape — structurally identical to the MessageFormatAdapter
 * in @assistant-ui/react, but defined here to avoid cross-package type moves.
 * TypeScript's structural typing ensures these are interchangeable.
 */
type MessageFormatAdapter<TMessage, TStorageFormat> = {
  format: string;
  encode(item: {
    parentId: string | null;
    message: TMessage;
  }): TStorageFormat;
  decode(stored: {
    id: string;
    parent_id: string | null;
    format: string;
    content: TStorageFormat;
  }): {
    parentId: string | null;
    message: TMessage;
  };
  getId(message: TMessage): string;
};
/**
 * Wraps a CloudMessagePersistence instance with format-aware encode/decode.
 *
 * This centralizes the pattern used by both:
 * - useCloudChat (standalone AI SDK hook)
 * - AssistantCloudThreadHistoryAdapter.withFormat() (assistant-ui runtime)
 *
 * The persistence parameter is typed structurally (not by class) so callers
 * don't need to import CloudMessagePersistence directly.
 */
declare const createFormattedPersistence: <TMessage, TStorageFormat>(persistence: {
  append: (threadId: string, messageId: string, parentId: string | null, format: string, content: ReadonlyJSONObject) => Promise<void>;
  load: (threadId: string, format?: string) => Promise<any[]>;
  isPersisted: (messageId: string) => boolean;
  update?: (threadId: string, messageId: string, format: string, content: ReadonlyJSONObject) => Promise<void>;
}, adapter: MessageFormatAdapter<TMessage, TStorageFormat>) => {
  append: (threadId: string, item: {
    parentId: string | null;
    message: TMessage;
  }) => Promise<void>;
  update: ((threadId: string, item: {
    parentId: string | null;
    message: TMessage;
  }, messageId: string) => Promise<void>) | undefined;
  load: (threadId: string) => Promise<{
    messages: {
      parentId: string | null;
      message: TMessage;
    }[];
  }>;
  isPersisted: (messageId: string) => boolean;
};
//#endregion
export { MessageFormatAdapter, createFormattedPersistence };
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