/// <reference types="node" />
import { EventEmitter } from "events";
import { Scheduler } from "./scheduler";
import { Options } from "./option";
import { Provider, ProviderFactory } from "./provider";
import { UserAgent, Proxy, Headers, Auth } from "./agent";
interface ICrawler extends EventEmitter {
    start(): Promise<Crawler>;
    stop(): Promise<Crawler>;
}
export declare enum Events {
    Data = "data",
    Error = "error"
}
export declare class Crawler extends EventEmitter implements ICrawler {
    options: Options;
    active: boolean;
    scheduler: Scheduler;
    provider: Provider;
    userAgent: UserAgent;
    proxy: Proxy;
    headers: Headers;
    auth: Auth;
    private readonly http;
    private readonly storage;
    private readonly persistence;
    constructor(ProviderClass: ProviderFactory, options?: Options);
    private request;
    /**
     * start crawl
     */
    start(): Promise<Crawler>;
    /**
     * stop crawl
     */
    stop(): Promise<Crawler>;
}
export {};