/**
 * Centralized shutdown management for OATS
 *
 * Handles graceful shutdown of all services and cleanup operations
 *
 * @module @oatsjs/utils/shutdown-manager
 */
import type { BaseService } from '../core/services/base-service.js';
import type { DevSyncEngine } from '../core/dev-sync-optimized.js';
import type { ProcessManager } from './process-manager.js';
import type { FSWatcher } from 'chokidar';
export interface ShutdownOptions {
    keepConfigWatcher?: boolean;
    exitProcess?: boolean;
}
export declare class ShutdownManager {
    private static instance;
    private logger;
    private isShuttingDown;
    private shutdownHandlers;
    private signalHandlersSetup;
    private constructor();
    /**
     * Get singleton instance
     */
    static getInstance(): ShutdownManager;
    /**
     * Register a custom shutdown handler
     */
    registerHandler(handler: () => Promise<void>): void;
    /**
     * Perform graceful shutdown of all services
     */
    shutdown(services: {
        syncEngine?: DevSyncEngine;
        services: Map<string, BaseService>;
        processManager: ProcessManager;
        configWatcher?: FSWatcher;
        unlinkPackages?: () => Promise<void>;
    }, options?: ShutdownOptions): Promise<void>;
    /**
     * Setup signal handlers for graceful shutdown
     */
    setupSignalHandlers(shutdownCallback: () => Promise<void>): void;
    /**
     * Check if shutdown is in progress
     */
    isShutdownInProgress(): boolean;
}
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