import { Class, BeforeToken, Injector } from '#di';
import { SystemLogMediator } from '#logger/system-log-mediator.js';
import { ExtensionsGroupToken, Extension, TotalInitMeta, ExtensionCounters, TotalInitMeta2 } from '#types/extension-types.js';
import { Counter } from './counter.js';
import { ExtensionsContext } from './extensions-context.js';
export declare class ExtensionsManager {
    protected injector: Injector;
    protected systemLogMediator: SystemLogMediator;
    protected counter: Counter;
    protected extensionsContext: ExtensionsContext;
    protected extensionCounters: ExtensionCounters;
    /**
     * Settings by AppInitializer.
     */
    moduleName: string;
    /**
     * Settings by AppInitializer.
     */
    beforeTokens: Set<BeforeToken<any>>;
    protected unfinishedInit: Set<Extension<any> | ExtensionsGroupToken>;
    /**
     * The cache for the current module.
     */
    protected cache: Map<ExtensionsGroupToken, TotalInitMeta<any>>;
    protected excludedExtensionPendingList: Map<ExtensionsGroupToken, Set<Class<Extension<any>>>>;
    constructor(injector: Injector, systemLogMediator: SystemLogMediator, counter: Counter, extensionsContext: ExtensionsContext, extensionCounters: ExtensionCounters);
    init<T>(groupToken: ExtensionsGroupToken<T>, perApp?: false): Promise<TotalInitMeta<T>>;
    init<T>(groupToken: ExtensionsGroupToken<T>, perApp: true): Promise<TotalInitMeta2<T>>;
    updateExtensionPendingList(): void;
    protected prepareTotalInitMetaPerApp(totalInitMeta: TotalInitMeta2, perApp?: boolean): TotalInitMeta;
    /**
     * Adds to the pending list of extensions that want to receive the initialization
     * result of `groupToken` from the whole application.
     */
    protected addExtensionToPendingList(groupToken: ExtensionsGroupToken): void;
    protected excludeExtensionFromPendingList(groupToken: ExtensionsGroupToken): void;
    protected prepareAndInitGroup<T>(groupToken: ExtensionsGroupToken<T>): Promise<TotalInitMeta<any>>;
    protected setTotalInitMetaPerApp(groupToken: ExtensionsGroupToken, totalInitMeta: TotalInitMeta): void;
    protected initGroup<T>(groupToken: ExtensionsGroupToken): Promise<TotalInitMeta>;
    protected updateGroupCounters(groupToken: ExtensionsGroupToken, totalInitMeta: TotalInitMeta): void;
    protected throwCircularDeps(item: Extension | ExtensionsGroupToken): void;
    protected getItemName(tokenOrExtension: Extension | ExtensionsGroupToken): string;
}
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