import { ApiClient } from './api-client';
import type { AutoUpdateConfig } from './types';
export interface AutoUpdaterHandle {
    stop: () => void;
}
/**
 * Start the auto-updater that periodically checks for new versions.
 *
 * @param clients - ApiClient instances (any one is used for version check)
 * @param config - Auto-update configuration
 * @param stopAllAgents - Function to gracefully stop all running agents
 * @param sendUpdateError - Function to report update errors via heartbeat
 * @param isAnyAgentBusy - Optional callback to check if any agent is processing a command
 * @param isUpdateAllowed - Optional gate evaluated on every check. Returning false skips the
 *   check entirely. Used to honour the server-side (admin UI) auto-update setting without
 *   requiring an agent restart. Omitted = always allowed (previous behaviour).
 *
 * NOTE: `config.enabled` is deliberately NOT consulted here. Whether an update may run is
 * decided per check by `isUpdateAllowed` (the server-side setting can flip between checks),
 * and `config.enabled` only records the startup baseline from CLI flags / local config.
 * Adding an early return on `!config.enabled` would pin the decision to startup and make the
 * admin UI toggle require an agent restart. Callers that must never update — a CLI
 * `--no-auto-update`, or a runtime where self-update cannot work — simply never call this.
 */
export declare function startAutoUpdater(clients: ApiClient[], config: AutoUpdateConfig, stopAllAgents: () => void | Promise<void>, sendUpdateError?: (error: string) => void, isAnyAgentBusy?: () => Promise<boolean>, isUpdateAllowed?: () => Promise<boolean>): AutoUpdaterHandle;
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