import { type ArkmeMessageSyncProgress } from '../chat-message-sync.js';
import { type ServiceRuntime } from './service.js';
import type { UnifiedChatTimelineService } from './unified-chat-timeline-service.js';
import type { SourceService } from './source-service.js';
import type { ChatService } from './chat-service.js';
import type { ArkmeChatClientEvent } from '../types.js';
/** One lifecycle per Host; a UI mount, Tool call or SDK consumer never owns a second pump. */
export declare class ChatMessageSyncService {
    private readonly runtime;
    private readonly timeline;
    private readonly source;
    private readonly chat;
    private readonly publish;
    private progress;
    private started;
    private disposed;
    private generation;
    private revision;
    private controller;
    private running;
    private timer;
    private dirty;
    private failures;
    private readonly unsubscribe?;
    constructor(runtime: ServiceRuntime, timeline: UnifiedChatTimelineService, source: SourceService, chat: ChatService, publish: (progress: ArkmeMessageSyncProgress, sourceKeys?: string[]) => void);
    private update;
    start(): () => void;
    reset(): void;
    dispose(): void;
    accept(event: ArkmeChatClientEvent): void;
    private wake;
    private launch;
    private assert;
    status(signal?: AbortSignal): Promise<ArkmeMessageSyncProgress>;
    retry(signal?: AbortSignal): Promise<ArkmeMessageSyncProgress>;
    private request;
    private identify;
    private run;
    private scheduleRetry;
    private validateBodies;
}
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