/// <reference types="node" />
import { ServerRequest, ServerResponse } from "http";
import { Request } from "./request";
import { Response } from "./response";
import { Context } from "./context";
import { Key as RegExpKey } from "path-to-regexp";
export { RegExpOptions, Key as RegExpKey } from "path-to-regexp";
/** 出错原因 */
export declare type ErrorReason = null | string | Error | Record<any, any>;
/** 编译路由字符串的结果 */
export interface ParsedRoutePathResult {
    /** 正则表达式 */
    regexp: RegExp;
    /** 变量信息 */
    keys: RegExpKey[];
}
/** 中间件处理函数 */
export interface MiddlewareHandle<C> {
    (ctx: C, err?: ErrorReason): Promise<void> | void;
    /** 是否为connect中间件 */
    classical?: boolean;
    /** 当前中间件注册时的路由前缀 */
    route?: ParsedRoutePathResult;
}
/** 中间件堆栈的元素 */
export interface Middleware<C> {
    /** 是否为错误处理中间件 */
    handleError: boolean;
    /** 路由规则 */
    route: ParsedRoutePathResult;
    /** 中间件处理函数 */
    handle: MiddlewareHandle<C>;
    /** 是否排在末尾 */
    atEnd: boolean;
}
/** next回调函数 */
export declare type NextFunction = (err?: ErrorReason) => void;
/** 监听端口选项 */
export interface ListenOptions {
    /** 端口 */
    port?: number;
    /** 地址 */
    host?: string;
    backlog?: number;
    /** Unix Socket 文件路径 */
    path?: string;
    exclusive?: boolean;
}
/** 经典connect中间件 */
export declare type ClassicalMiddlewareHandle = (req: ServerRequest, res: ServerResponse, next?: NextFunction) => void;
/** 经典connect错误处理中间件 */
export declare type ClassicalMiddlewareErrorHandle = (err: ErrorReason, req: ServerRequest, res: ServerResponse, next?: NextFunction) => void;
/** Context对象构造器 */
export interface ContextConstructor {
    new (): Context;
}
/** Request对象构造器 */
export interface RequestConstructor {
    new (req: ServerRequest, ctx: Context): Request;
}
/** Response对象构造器 */
export interface ResponseConstructor {
    new (res: ServerResponse, ctx: Context): Response;
}
/** 请求头 */
export interface Headers {
    [name: string]: string | string[] | number;
}
/** 扩展的ServerRequest对象 */
export interface ServerRequestEx extends ServerRequest {
    originalUrl?: string;
    query?: Record<string, any>;
    body?: Record<string, any>;
    files?: Record<string, any>;
    params?: Record<string, any>;
    session?: Record<string, any>;
    cookies?: Record<string, any>;
    signedCookies?: Record<string, any>;
}