/**
 * Copyright (c) Microsoft Corporation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import type { LoadedPlugin } from './types.js';
import type { FullConfig } from '../config.js';
/**
 * Plugin loader class that discovers and loads plugins from the filesystem.
 */
export declare class PluginLoader {
    private readonly _config;
    private readonly _pluginsPath;
    private _loadedPlugins;
    constructor(config: FullConfig);
    /**
     * Get the plugins directory path.
     */
    get pluginsPath(): string;
    /**
     * Get all loaded plugins.
     */
    get loadedPlugins(): LoadedPlugin[];
    /**
     * Get only enabled plugins.
     */
    get enabledPlugins(): LoadedPlugin[];
    /**
     * Discover and load all plugins from the plugins directory.
     */
    loadPlugins(): Promise<LoadedPlugin[]>;
    /**
     * Cleanup all loaded plugins.
     */
    cleanup(): Promise<void>;
    /**
     * Reload a specific plugin by name.
     */
    reloadPlugin(pluginName: string): Promise<LoadedPlugin | null>;
    /**
     * Discover plugin directories in the plugins folder.
     */
    private _discoverPluginDirectories;
    /**
     * Load a plugin from the given directory.
     */
    private _loadPlugin;
    /**
     * Check if a plugin is enabled based on configuration.
     */
    private _isPluginEnabled;
}