import { PluginContext } from './context';
import { PluginDiscovery } from './discovery';
import { ExtensiblePlugin } from './/extension';
import { PluginHost } from './host';
import { Plugin } from './plugin';
import { PluginRegistry } from './registry';
import { PluginLookupCallback, PluginLookupFilter } from './lookup';
/**
 * Interface which describes a plugin manager.
 */
export interface PluginManager<PluginBaseType extends Plugin = Plugin> extends PluginRegistry<PluginBaseType> {
    /**
     * Get the plugin host.
     *
     * @return {PluginHost}
     *   An object which represents the plugin host.
     */
    getPluginHost(): PluginHost;
    /**
     * Get the plugin discovery.
     *
     * @return {PluginDiscovery}
     *   An object which represents the plugin discovery.
     */
    getPluginDiscovery(): PluginDiscovery<PluginBaseType>;
    /**
     * Create a plugin instance for given context.
     *
     * @param {PluginContext} pluginContext
     *   An object which represents the plugin context.
     */
    createPluginInstance(pluginContext: PluginContext): Promise<PluginBaseType>;
}
/**
 * Base plugin manager implementation.
 */
export declare abstract class PluginManagerBase<PluginBaseType extends Plugin> implements PluginManager<PluginBaseType> {
    /**
     * Holds the plugin host.
     *
     * @var {PluginHost}
     */
    protected pluginHost: PluginHost;
    /**
     * Holds the plugin discovery.
     *
     * @var {PluginDiscovery}
     */
    protected pluginDiscovery: PluginDiscovery<PluginBaseType>;
    /**
     * Holds the registered plugins.
     *
     * @var {Plugin[]}
     */
    protected pluginRegistry: PluginBaseType[];
    /**
     * Create a DefaultPluginManager object.
     *
     * @param {PluginDiscovery} pluginDiscovery
     *   An object which provides the plugin discovery mechanism.
     */
    constructor(pluginHost: PluginHost, pluginDiscovery: PluginDiscovery<PluginBaseType>);
    /**
     * {@inheritdoc}
     */
    getPluginHost(): PluginHost;
    /**
     * {@inheritdoc}
     */
    getPluginDiscovery(): PluginDiscovery<PluginBaseType>;
    /**
     * {@inheritdoc}
     */
    createPluginInstance(pluginContext: PluginContext): Promise<PluginBaseType>;
    /**
     * {@inheritdoc}
     */
    list(filter?: PluginLookupFilter<PluginBaseType>): PluginBaseType[];
    /**
     * {@inheritdoc}
     */
    each(callback: PluginLookupCallback<PluginBaseType>): Promise<PluginBaseType[]>;
    /**
     * {@inheritdoc}
     */
    has(id: string): boolean;
    /**
     * {@inheritdoc}
     */
    get<PluginType extends PluginBaseType = PluginBaseType>(id: string): PluginType | null;
}
/**
 * Interface which describes a plugin extension manager.
 */
export interface PluginExtensionManager<PluginBaseType extends Plugin<ExtensiblePlugin>> extends PluginManager<PluginBaseType> {
}
/**
 * Base plugin extension manager implementation.
 */
export declare abstract class PluginExtensionManagerBase<PluginBaseType extends Plugin<ExtensiblePlugin>> extends PluginManagerBase<PluginBaseType> implements PluginExtensionManager<PluginBaseType> {
}
/**
 * Plugin extension manager which provide a create hook.
 */
export declare class HookablePluginExtensionManager<PluginBaseType extends Plugin<ExtensiblePlugin>> implements PluginExtensionManager<PluginBaseType> {
    /**
     * Holds the plugin extension manager.
     *
     * @var {PluginExtensionManager}
     */
    protected pluginExtensionManager: PluginExtensionManager<PluginBaseType>;
    /**
     * Holds the create plugin instance callback.
     *
     * @var {Function}
     */
    protected createPluginInstanceCallback: (plugin: PluginBaseType) => Promise<PluginBaseType>;
    /**
     * Create a HookablePluginExtensionManager object.
     *
     * @param {PluginExtensionManager} pluginExtensionManager
     *   An object which represents a plugin extension manager.
     * @param {Function} createCallback
     *   A callback which will be invoked after creation.
     */
    constructor(pluginExtensionManager: PluginExtensionManager<PluginBaseType>, createPluginInstanceCallback: (plugin: PluginBaseType) => Promise<PluginBaseType>);
    /**
     * {@inheritdoc}
     */
    getPluginHost(): PluginHost;
    /**
     * {@inheritdoc}
     */
    getPluginDiscovery(): PluginDiscovery<PluginBaseType>;
    /**
     * {@inheritdoc}
     */
    createPluginInstance(pluginContext: PluginContext): Promise<PluginBaseType>;
    /**
     * {@inheritdoc}
     */
    has(id: string): boolean;
    /**
     * {@inheritdoc}
     */
    get<PluginType extends PluginBaseType = PluginBaseType>(id: string): PluginType | null;
    /**
     * {@inheritdoc}
     */
    list(filter?: PluginLookupFilter<PluginBaseType>): PluginBaseType[];
    /**
     * {@inheritdoc}
     */
    each(callback: PluginLookupCallback<PluginBaseType>): Promise<PluginBaseType[]>;
}