import { summarize, type SubAgentLiveView } from './status-line-renderer.js';
export declare const DEFAULT_POLL_INTERVAL_MS = 10000;
export declare const DEFAULT_STALE_THRESHOLD_MS: number;
export type PollRecord = {
    readonly path: string;
    readonly role: string;
};
export type PollerStatusEvent = {
    readonly kind: 'status';
    readonly line: string;
    readonly summary: ReturnType<typeof summarize>;
    readonly views: readonly SubAgentLiveView[];
};
export type PollerStaleEvent = {
    readonly kind: 'stale';
    readonly path: string;
    readonly role: string;
    readonly lastBeatAgoSec: number;
    readonly thresholdSec: number;
};
export type PollerDoneEvent = {
    readonly kind: 'done';
    readonly summary: ReturnType<typeof summarize>;
};
export type PollerEvent = PollerStatusEvent | PollerStaleEvent | PollerDoneEvent;
export type PollerHandlers = {
    onStatus?: (event: PollerStatusEvent) => void;
    onStale?: (event: PollerStaleEvent) => void;
    onDone?: (event: PollerDoneEvent) => void;
    onError?: (error: unknown) => void;
};
export type PollerOptions = {
    prefix: string;
    intervalMs?: number;
    staleThresholdMs?: number;
    now?: () => Date;
};
export declare class BatchHeartbeatPoller {
    private readonly records;
    private readonly handlers;
    private readonly options;
    private timer;
    private prevStale;
    private prevSummaryDone;
    private running;
    constructor(records: readonly PollRecord[], handlers: PollerHandlers, options: PollerOptions);
    start(): void;
    stop(): void;
    /** Force a tick (testing seam + low-level access for explicit invocation). */
    tick(): void;
    /**
     * First-sight `stale` notices for the current record set (moved verbatim
     * out of `tick` to clear its `max-lines-per-function` arm).
     */
    private emitStaleNotices;
    /**
     * The `done` / stop decision for the current record set (moved verbatim
     * out of `tick` to clear its `max-lines-per-function` arm).
     */
    private finishIfAllTerminal;
}