import * as k8s from '@kubernetes/client-node';
import { Logger } from 'winston';
import { EventEmitter } from 'events';
import { ConnectionPoolConfig, ConnectionEntry } from './ConnectionPool.js';
/**
 * Configuration for SingleClusterConnectionManager
 */
export interface ConnectionManagerConfig {
    /**
     * Connection pool configuration
     */
    poolConfig?: ConnectionPoolConfig;
    /**
     * Logger instance
     */
    logger?: Logger;
}
/**
 * Statistics for the managed cluster
 */
export interface ClusterStats {
    healthy: boolean;
    poolStats: {
        total: number;
        idle: number;
        inUse: number;
        unhealthy: number;
        waitQueueLength: number;
    };
}
/**
 * Connection manager for handling a single Kubernetes cluster
 */
export declare class ConnectionManager extends EventEmitter {
    private readonly pool;
    private readonly logger?;
    private disposed;
    constructor(kubeConfigFactory: () => k8s.KubeConfig, config?: ConnectionManagerConfig);
    /**
     * Acquire a connection from the pool
     */
    acquire(): Promise<ConnectionEntry>;
    /**
     * Release a connection back to the pool
     */
    release(connection: ConnectionEntry): void;
    /**
     * Get statistics for the cluster
     */
    getStats(): ClusterStats;
    /**
     * Check if the cluster is healthy
     */
    private isClusterHealthy;
    /**
     * Dispose of the connection manager
     */
    dispose(): Promise<void>;
}
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