interface FlyRequestConfig extends Object {
  url?: string;
  method?: string;
  baseURL?: string;
  headers?: any;
  body?: any;
  params?: any;
  timeout?: number;
  withCredentials?: boolean;
  parseJson?: boolean;
  responseType?: string;
  /**
   * 防止缓存，添加时间戳
   */
  cache?: boolean;
  /**
   * 重试次数
   */
  retry?: number;
  /**
   * 重试延迟毫秒
   */
  retryDelay?: number;
  /**
   * 重试次数限制
   */
  retryCount?: number;
  /**
   * 是否自动重试
   */
  autoRetry?: boolean;
}

interface FlyError extends Error {
  status: number;
  message: string;
  engine: XMLHttpRequest;
  request?: FlyRequestConfig;
  response?: FlyErrResponse;
}

interface FlyResponse<T = any> {
  data: T;
  request: FlyRequestConfig;
  engine: XMLHttpRequest;
  headers: Object;
  status: number;
  statusText: string;
}

interface FlyErrResponse {
  data: any;
  headers: Object;
  status: number;
  statusText: string;
}


/**
 * 返回接口数据结构实体
 */
interface ResponseBody<T> {
  code: number;
  data: T;
  msg: string;
};

type FlyPromise<T = any> = Promise<ResponseBody<T>>;

interface FlyRequestInterceptor<V> {
  use(onSend?: (request: V) => any): void;
  lock(): void;
  unlock(): void;

  clear(): void;
}

interface FlyResponseInterceptor<V> {
  use(onSucceed?: (response: V) => any, onError?: (err: FlyError) => any): void;
  lock(): void;
  unlock(): void;

  clear(): void;
}

interface Fly {
  config: FlyRequestConfig;
  interceptors: {
    request: FlyRequestInterceptor<FlyRequestConfig>;
    response: FlyResponseInterceptor<FlyResponse>;
  };
  engine: any;
  request<T = any>(
    url: string | FlyRequestConfig,
    data?: any,
    config?: FlyRequestConfig,
  ): FlyPromise<T>;
  get<T = any>(url: string, data?: any, config?: FlyRequestConfig): FlyPromise<T>;
  delete(url: string, data?: any, config?: FlyRequestConfig): FlyPromise;
  head(url: string, data?: any, config?: FlyRequestConfig): FlyPromise;
  post<T = any>(url: string, data?: any, config?: FlyRequestConfig): FlyPromise<T>;
  put<T = any>(url: string, data?: any, config?: FlyRequestConfig): FlyPromise<T>;
  patch<T = any>(url: string, data?: any, config?: FlyRequestConfig): FlyPromise<T>;
  all<T>(values: (T | Promise<T>)[]): Promise<T[]>;
  spread<T, R>(callback: (...args: T[]) => R): (array: T[]) => R;

  lock(): void;
  unlock(): void;

  clear(): void;
}

declare const fly: Fly;