interface XMLHttpRequestProxy extends XMLHttpRequest {
  responseText: string,
  readyState: number;
  response: any;
  responseURL: string;
  responseXML: Document | null;
  status: number;
  statusText: string;
  xhr: OriginXMLHttpRequest
}

interface OriginXMLHttpRequest extends XMLHttpRequest {
  getProxy(): XMLHttpRequestProxy;
}

interface AttrGetterAndSetter<T = any> {
  getter?: (value: T, xhr: OriginXMLHttpRequest) => T;
  setter?: (value: T, xhr: OriginXMLHttpRequest) => T;
}

interface XhrRequestConfig {
  method: string,
  url: string,
  headers: any,
  body: any,
  async: boolean,
  user: string,
  password: string,
  withCredentials: boolean
  xhr: OriginXMLHttpRequest,
}

interface XhrResponse {
  config: XhrRequestConfig,
  headers: any,
  response: any,
  status: number,
  statusText?: string,
}

type XhrErrorType = 'error' | 'timeout' | 'abort'


interface XhrError {
  config: XhrRequestConfig,
  type: XhrErrorType
}

interface Hooks {
  onreadystatechange?: ((this: XMLHttpRequestProxy, xhr: OriginXMLHttpRequest, ev: ProgressEvent) => any) | null;
  onabort?: ((this: XMLHttpRequestProxy, xhr: OriginXMLHttpRequest, ev: ProgressEvent) => any) | null;
  onerror?: ((this: XMLHttpRequestProxy, xhr: OriginXMLHttpRequest, ev: ProgressEvent) => any) | null;
  onload?: ((this: XMLHttpRequestProxy, xhr: OriginXMLHttpRequest, ev: ProgressEvent) => any) | null;
  onloadend?: ((this: XMLHttpRequestProxy, xhr: OriginXMLHttpRequest, ev: ProgressEvent) => any) | null;
  onloadstart?: ((this: XMLHttpRequestProxy, xhr: OriginXMLHttpRequest, ev: ProgressEvent) => any) | null;
  onprogress?: ((this: XMLHttpRequestProxy, xhr: OriginXMLHttpRequest, ev: ProgressEvent) => any) | null;
  ontimeout?: ((this: XMLHttpRequestProxy, xhr: OriginXMLHttpRequest, ev: ProgressEvent) => any) | null;
  abort?: ((args: Array<any>, xhr: OriginXMLHttpRequest) => any);
  getAllResponseHeaders?: (args: Array<any>, xhr: OriginXMLHttpRequest) => any;
  getResponseHeader?: (args: Array<any>, xhr: OriginXMLHttpRequest) => any;
  open?: (args: Array<any>, xhr: OriginXMLHttpRequest) => any;
  overrideMimeType?: (args: Array<any>, xhr: OriginXMLHttpRequest) => any;
  send?: (args: Array<any>, xhr: OriginXMLHttpRequest) => any;
  setRequestHeader?: (args: Array<any>, xhr: OriginXMLHttpRequest) => any;
  addEventListener?: (args: Array<any>, xhr: OriginXMLHttpRequest) => any;
  removeEventListener?: (args: Array<any>, xhr: OriginXMLHttpRequest) => any;

  response?: AttrGetterAndSetter,
  responseText?: AttrGetterAndSetter<string>,
  readyState?: AttrGetterAndSetter<number>,
  responseType?: AttrGetterAndSetter<XMLHttpRequestResponseType>;
  responseURL?: AttrGetterAndSetter<string>;
  responseXML?: AttrGetterAndSetter<Document | null>;
  status?: AttrGetterAndSetter<number>;
  statusText?: AttrGetterAndSetter<string>;
  timeout?: AttrGetterAndSetter<number>;
  upload?: AttrGetterAndSetter<XMLHttpRequestUpload>;
  withCredentials?: AttrGetterAndSetter<boolean>;
}

interface XhrHandler {
  resolve(response: XhrResponse): void

  reject(err: XhrError): void
}

interface XhrRequestHandler extends XhrHandler {
  next(config: XhrRequestConfig): void
}

interface XhrResponseHandler extends XhrHandler {
  next(response: XhrResponse): void
}

interface XhrErrorHandler extends XhrHandler {
  next(error: XhrError): void
}

interface Proxy {
  onRequest?: (config: XhrRequestConfig, handler: XhrRequestHandler) => void,
  onResponse?: (response: XhrResponse, handler: XhrResponseHandler) => void,
  onError?: (err: XhrError, handler: XhrErrorHandler) => void,
}

export function proxy(proxy: Proxy, win?: Window): { originXhr: XMLHttpRequest, unProxy: () => void };

export function unProxy(win?: Window);

export function hook(hooks: Hooks,win?: Window): { originXhr: XMLHttpRequest, unHook: () => void };

export function unHook(win?: Window);