import fs from 'fs';
import { Method, AxiosRequestConfig, AxiosInstance } from "axios";
import HttpClientInterface from "../Core/HttpClient/Contracts/HttpClientInterface";
import HttpClientMethodsMixin from '../Core/HttpClient/Mixins/HttpClientMethodsMixin';
import { LogHandler } from '../Types/global';
import HttpClientResponse from '../Core/HttpClient/HttpClientResponse';
import PresetMixin from '../Core/HttpClient/Mixins/PresetMixin';
import MerchantInterface from './Contracts/MerchantInterface';
declare class Client implements HttpClientInterface {
    protected merchant: MerchantInterface;
    protected throw: boolean;
    protected client: HttpClientInterface;
    protected defaultOptions: AxiosRequestConfig<any>;
    V3_URI_PREFIXES: string[];
    constructor(merchant: MerchantInterface, client: HttpClientInterface, defaultOptions?: Record<string, any>);
    getInstance(): AxiosInstance;
    setInstance(instance: AxiosInstance): this;
    setLogger(logger: LogHandler): this;
    request(method: Method, url: string, payload?: AxiosRequestConfig<any>): Promise<HttpClientResponse>;
    /**
     * 文件上传
     * @see https://pay.weixin.qq.com/wiki/doc/apiv3/apis/chapter2_1_1.shtml
     * @param uri 接口地址
     * @param file 文件路径、文件Buffer或文件可读流
     * @param meta 文件元信息，包含 filename 和 sha256 两个字段
     * @param filename 文件名，必须以 .jpg、.bmp、.png 为后缀
     * @returns
     */
    uploadMedia(uri: string, file: string | fs.ReadStream | Buffer, meta?: Record<string, any>, filename?: string): Promise<HttpClientResponse>;
    /**
     * 判断是否是V3请求
     * @param url 请求地址
     * @returns
     */
    protected isV3Request(url: string): boolean;
    /**
     * 创建签名（V3）
     * @param method 请求方式
     * @param url 请求地址
     * @param payload 请求载荷
     * @returns
     */
    createSignature(method: string, url: string, payload: AxiosRequestConfig<any>): string;
    /**
     * 创建签名（V2）
     * @param body 请求参数
     * @returns
     */
    protected attachLegacySignature(body: Record<string, any>): Record<string, string | number>;
    /**
     * 预设置mch_id（因nodejs不支持魔术方法，只好预先设置几个常用的方法）
     * @param new_mch_id
     * @returns
     */
    withMchId(new_mch_id?: string): this;
    /**
     * 预设置mch_id别名（因nodejs不支持魔术方法，只好预先设置几个常用的方法）
     * @param new_alias
     * @returns
     */
    withMchIdAs(new_alias?: string): this;
}
interface Client extends HttpClientMethodsMixin, PresetMixin {
}
export = Client;