/**
 * Connection pool manager for Amazon Seller MCP Client
 *
 * This file implements connection pooling for HTTP requests to improve performance:
 * - Reuse HTTP connections
 * - Limit concurrent connections
 * - Connection timeout management
 * - Connection health monitoring
 */
import http from 'http';
import https from 'https';
/**
 * Connection pool configuration
 */
export interface ConnectionPoolConfig {
    /**
     * Maximum number of sockets per host
     * @default 10
     */
    maxSockets?: number;
    /**
     * Maximum number of free sockets to keep alive
     * @default 5
     */
    maxFreeSockets?: number;
    /**
     * Socket timeout in milliseconds
     * @default 60000 (1 minute)
     */
    timeout?: number;
    /**
     * Keep-alive timeout in milliseconds
     * @default 60000 (1 minute)
     */
    keepAliveTimeout?: number;
    /**
     * Whether to enable connection reuse
     * @default true
     */
    keepAlive?: boolean;
}
/**
 * Connection pool statistics
 */
interface ConnectionPoolStats {
    /**
     * Number of active sockets
     */
    activeSockets: number;
    /**
     * Number of free sockets
     */
    freeSockets: number;
    /**
     * Number of queued requests
     */
    queuedRequests: number;
    /**
     * Total number of requests
     */
    totalRequests: number;
    /**
     * Total number of timeouts
     */
    timeouts: number;
    /**
     * Total number of errors
     */
    errors: number;
}
/**
 * Connection pool manager for HTTP requests
 */
export declare class ConnectionPool {
    /**
     * HTTP agent for connection pooling
     */
    private httpAgent;
    /**
     * HTTPS agent for connection pooling
     */
    private httpsAgent;
    /**
     * Connection pool configuration
     */
    private config;
    /**
     * Connection pool statistics
     */
    private stats;
    /**
     * Create a new connection pool
     *
     * @param config Connection pool configuration
     */
    constructor(config?: ConnectionPoolConfig);
    /**
     * Get the HTTP agent
     *
     * @returns HTTP agent
     */
    getHttpAgent(): http.Agent;
    /**
     * Get the HTTPS agent
     *
     * @returns HTTPS agent
     */
    getHttpsAgent(): https.Agent;
    /**
     * Get connection pool statistics
     *
     * @returns Connection pool statistics
     */
    getStats(): ConnectionPoolStats;
    /**
     * Update connection pool statistics
     */
    private updateStats;
    /**
     * Start monitoring connections
     */
    private startMonitoring;
    /**
     * Monitor socket events
     */
    private monitorSocketEvents;
    /**
     * Track a new request
     */
    trackRequest(): void;
    /**
     * Close all connections
     */
    destroy(): void;
}
/**
 * Configure the default connection pool
 *
 * @param config Connection pool configuration
 */
export declare function configureConnectionPool(config: ConnectionPoolConfig): void;
/**
 * Get the default connection pool instance
 *
 * @returns Default connection pool instance
 */
export declare function getConnectionPool(): ConnectionPool;
declare const _default: {
    ConnectionPool: typeof ConnectionPool;
    configureConnectionPool: typeof configureConnectionPool;
    getConnectionPool: typeof getConnectionPool;
};
export default _default;