/**
 * Redis Connection Pool Manager
 *
 * Provides a shared Redis connection pool for all services.
 * Avoids connection overhead and prevents connection leaks.
 *
 * @package @memo-labs/database
 */
import { Redis } from "ioredis";
interface RedisConfig {
    host?: string;
    port?: number;
    password?: string;
    db?: number;
    url?: string;
}
/**
 * Redis Connection Pool Manager (Singleton)
 */
export declare class RedisPoolManager {
    private static instance;
    private connections;
    private defaultConnection;
    private constructor();
    /**
     * Get the singleton instance
     */
    static getInstance(): RedisPoolManager;
    /**
     * Get or create a Redis connection
     *
     * @param config - Redis configuration
     * @param key - Optional connection key for multiple connections
     * @returns Redis client instance
     */
    getConnection(config?: RedisConfig, key?: string): Redis;
    /**
     * Get the default Redis connection
     *
     * @param config - Redis configuration (used only if creating new connection)
     * @returns Redis client instance
     */
    getDefaultConnection(config?: RedisConfig): Redis;
    /**
     * Parse Redis configuration from multiple formats
     *
     * @param config - Configuration in various formats
     * @returns Parsed Redis options
     */
    private parseConfig;
    /**
     * Close a specific connection
     *
     * @param key - Connection key
     */
    closeConnection(key?: string): Promise<void>;
    /**
     * Close all connections
     */
    closeAll(): Promise<void>;
    /**
     * Get connection pool statistics
     */
    getStats(): {
        totalConnections: number;
        keys: string[];
    };
}
/**
 * Get a Redis connection (convenience function)
 *
 * @param config - Redis configuration
 * @param key - Optional connection key
 * @returns Redis client instance
 */
export declare function getRedisConnection(config?: RedisConfig, key?: string): Redis;
/**
 * Get the default Redis connection (convenience function)
 *
 * @param config - Redis configuration
 * @returns Redis client instance
 */
export declare function getDefaultRedisConnection(config?: RedisConfig): Redis;
/**
 * Close all Redis connections (convenience function)
 */
export declare function closeAllRedisConnections(): Promise<void>;
export {};
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