import { CacheManager } from "../cachemanager";
export declare const EventQueueType: {
    HTTP_REQUEST: string;
};
export type Subscription = (...data: any) => void;
export type EventQueueExecutor = (...params: any) => any;
export type EventQueuePreExecutor = (cache: CacheManager<any>, ...params: any) => any[];
export interface Event {
    date?: Date;
    type: string;
    params: any[];
    retryIn?: number;
    subscriptionKey?: string;
}
export interface IEventQueue {
    clearSubscriptions(key?: string): void;
    subscriptions(key?: string): Subscription[];
    subscribe(key: string, subscription: Subscription): void;
    queueEvent(cache: CacheManager<any>, event: Event): string;
    unSubscribe(key: string, subscription: Subscription): void;
    execute(cache: CacheManager<any>, type?: string): Promise<any[]>;
    queue(cache: CacheManager<any>, type: string, ...params: any[]): string;
    executeOnly(cache: CacheManager<any>, id: string, type?: string): Promise<any>;
}
export declare class EventQueue implements IEventQueue {
    protected static instance: EventQueue;
    private _ScheduledExecutions;
    private _Subscriptions;
    private static _RegisteredExecutors;
    private static _RegisteredPreExecutors;
    constructor();
    static getInstance(): EventQueue;
    static executorIsRegistered(type: string): boolean;
    static registerExecutor(type: string, executor: EventQueueExecutor): void;
    static unregisterExecutor(type: string): void;
    static registerPreExecutor(type: string, preExecutor: EventQueuePreExecutor): void;
    static unregisterPreExecutor(type: string): void;
    queueEvent(cache: CacheManager<any>, event: Event, key?: string): string;
    queue(cache: CacheManager<any>, type: string, ...params: any[]): string;
    executeOnly(cache: CacheManager<any>, id: string, type?: string): Promise<any>;
    execute(cache: CacheManager<any>, type?: string): Promise<any[]>;
    subscribe(key: string, subscription: Subscription): void;
    unSubscribe(key: string, subscription: Subscription): void;
    report(key: string, ...data: any): void;
    subscriptions(key?: string): Subscription[];
    clearSubscriptions(key?: string): void;
    private _generateId;
    private _buildId;
}