import { ConfigApis } from '../../../api';
import { HttpProtocol } from '../../../types/http';
import { Result } from '../../../types/types';
import { Task } from '../queue';
import { QueueContext } from '../context';
export declare class Host {
    private host;
    private protocol;
    constructor(host: string, protocol: HttpProtocol);
    /**
     * @description 当前 host 是否为冻结状态
     */
    isFrozen(): boolean;
    /**
     * @param  {number} time 单位秒，默认 20s
     * @description 冻结该 host 对象，该 host 将在指定时间内不可用
     */
    freeze(time?: number): void;
    /**
     * @description 解冻该 host
     */
    unfreeze(): void;
    /**
     * @description 获取当前 host 的完整 url
     */
    getUrl(): string;
    /**
     * @description 获取解冻时间
     */
    getUnfreezeTime(): number | undefined;
}
export declare type HostProgressKey = 'prepareUploadHost';
export declare class HostProvideTask implements Task {
    private context;
    private hostProvider;
    constructor(context: QueueContext<HostProgressKey>, configApis: ConfigApis, protocol: HttpProtocol, initHosts?: string[]);
    cancel(): Promise<Result>;
    process(notice: () => void): Promise<Result>;
}