import type { ChatStorage } from "./chat-storage.js";
export { ChatApiError } from "./chat-api-errors.js";
import type { ChatStreamEvent, ChatApiSuccess, ChatMessageInput, ChatMessagesInput, ChatSendInput, ChatSendResult, ChatThreadInput, CreateChatThreadInput, ListChatInput } from "./chat-api-types.js";
import type { ChatMessage, ChatThread } from "./types/chat.js";
export interface ChatApiServiceOptions {
    storage: ChatStorage;
    root?: string;
    now?: () => string;
}
export declare class ChatApiService {
    private readonly storage;
    private readonly root;
    private readonly now;
    constructor(options: ChatApiServiceOptions);
    createThread(input: CreateChatThreadInput): Promise<ChatApiSuccess<ChatThread>>;
    listThreads(input: ListChatInput): Promise<ChatApiSuccess<{
        threads: ChatThread[];
    }>>;
    getThread(input: ChatThreadInput): Promise<ChatApiSuccess<{
        thread: ChatThread;
    }>>;
    listMessages(input: ChatMessagesInput): Promise<ChatApiSuccess<{
        messages: ChatMessage[];
    }>>;
    createMessage(input: ChatMessageInput): Promise<ChatApiSuccess<ChatMessage>>;
    send(input: ChatSendInput): Promise<ChatApiSuccess<ChatSendResult>>;
    stream(input: ChatMessagesInput): Promise<ChatApiSuccess<{
        events: ChatStreamEvent[];
    }>>;
    private persistMessage;
    private listAllStoredMessages;
    private listAllContinuityMessages;
}