/**
 * Plugin Manager
 *
 * Orchestrates plugin execution through request/response lifecycle
 */
import type { Client } from '@elastic/elasticsearch';
import type { Plugin, PluginContext, PluginResponse, PluginErrorContext, PluginStats, PluginManagerConfig } from './types.js';
/**
 * Plugin Manager
 */
export declare class PluginManager {
    private plugins;
    private pluginStats;
    private config;
    private logger;
    private metrics;
    private client?;
    constructor(config?: PluginManagerConfig);
    /**
     * Set the Elasticsearch client
     */
    setClient(client: Client): void;
    /**
     * Register a plugin
     */
    register(plugin: Plugin): Promise<void>;
    /**
     * Unregister a plugin
     */
    unregister(name: string): Promise<void>;
    /**
     * Get a registered plugin
     */
    getPlugin(name: string): Plugin | undefined;
    /**
     * Get all registered plugins
     */
    getPlugins(): Plugin[];
    /**
     * Get plugins sorted by priority
     */
    private getSortedPlugins;
    /**
     * Execute beforeRequest hooks
     */
    executeBeforeRequest(context: PluginContext): Promise<PluginContext | null>;
    /**
     * Execute afterResponse hooks
     */
    executeAfterResponse<T>(context: PluginContext, response: PluginResponse<T>): Promise<PluginResponse<T>>;
    /**
     * Execute onError hooks
     */
    executeOnError(errorContext: PluginErrorContext): Promise<PluginResponse | null>;
    /**
     * Get plugin statistics
     */
    getStats(): Map<string, PluginStats>;
    /**
     * Clear plugin statistics
     */
    clearStats(): void;
    /**
     * Destroy all plugins
     */
    destroy(): Promise<void>;
    /**
     * Execute a function with timeout
     */
    private executeWithTimeout;
    /**
     * Update hook statistics
     */
    private updateHookStats;
}
/**
 * Create a plugin manager
 */
export declare function createPluginManager(config?: PluginManagerConfig): PluginManager;