import {
  AxiosError,
  AxiosRequestConfig,
  AxiosResponse,
  AxiosDefaults,
  AxiosInterceptorManager,
} from 'axios'

export type BusinessCode = string | number
export type BusinessCodes = BusinessCode[]

interface InterceptorResolveHandler {
  (config: EAxiosRequestConfig):
    | EAxiosRequestConfig
    | Promise<EAxiosRequestConfig>
}
interface InterceptorRejectHandler {
  (error: EAxiosError): any | Promise<never>
}
type InterceptorHandlers = Array<
  | [InterceptorResolveHandler | undefined, InterceptorRejectHandler]
  | [InterceptorResolveHandler]
>

export interface EAAlias {
  code?: string
  message?: string
  data?: string
}

export interface EAExtraInterceptors {
  request: InterceptorHandlers
  response: InterceptorHandlers
}

export interface EAConfig {
  /**成功的业务代码 */
  validBusinessCodes: BusinessCodes
  /**拦截器 */
  interceptors?: EAExtraInterceptors
  /**中置拦截器 */
  middleInterceptors?: EAExtraInterceptors
  /**前置拦截器 */
  frontInterceptors?: EAExtraInterceptors
  /**是否返回业务数据，默认为 true，如果设置为 false 则会返回响应数据：response.data */
  returnBusinessData?: boolean
  /**业务数据与业务代码的别名, 默认是 code message data */
  businessAlias?: EAAlias
  /**用户未认证的业务代码 */
  unanthorizedBusinessCodes?: BusinessCodes
  /**执行成功信息的函数，一般是UI组件的函数 */
  success?: (msg: string) => any
  /**执行失败信息的函数，一般是UI组件的函数 */
  warning?: (msg: string) => any
  _feedback?: boolean | string | [string]
}

export interface EAxiosRequestConfig<D = any> extends AxiosRequestConfig<D> {
  /**
   * 是否在成功时弹出接口返回的 message （可传字符串，覆盖接口返回的信息），需要注册 success 函数
   * 可传入一个字符串元组，表示可选，如果接口无返回则使用，如：{ _feedback: ['这是备用的成功信息'] }
   */
  _feedback?: boolean | string | [string]
  /**
   * 禁止弹出接口返回的 message 及配置的 _feedback
   */
  _silent?: boolean
}

export interface EAxiosBusinessResult {
  code: number | string
  message: string
  data: any
}

export type EAxiosResponse = AxiosResponse & {
  config?: EAxiosRequestConfig
  /**由原响应数据经 EAConfig['businessAlias'] 转换的业务数据 */
  _business?: EAxiosBusinessResult
}

export type EAxiosError = AxiosError & {
  response?: EAxiosResponse
  /**可输出由原响应错误转换的默认报错信息 */
  _formatMessage?: () => string
  _formatCodeMessage?: () => string
}

export class EAxios {
  constructor(config?: EAxiosRequestConfig)
  defaults: AxiosDefaults
  interceptors: {
    request: AxiosInterceptorManager<EAxiosRequestConfig>
    response: AxiosInterceptorManager<AxiosResponse>
  }
  getUri(config?: EAxiosRequestConfig): string
  request<T = any, R = AxiosResponse<T>, D = any>(
    config: EAxiosRequestConfig<D>
  ): Promise<R>
  get<T = any, R = AxiosResponse<T>, D = any>(
    url: string,
    config?: EAxiosRequestConfig<D>
  ): Promise<R>
  delete<T = any, R = AxiosResponse<T>, D = any>(
    url: string,
    config?: EAxiosRequestConfig<D>
  ): Promise<R>
  head<T = any, R = AxiosResponse<T>, D = any>(
    url: string,
    config?: EAxiosRequestConfig<D>
  ): Promise<R>
  options<T = any, R = AxiosResponse<T>, D = any>(
    url: string,
    config?: EAxiosRequestConfig<D>
  ): Promise<R>
  post<T = any, R = AxiosResponse<T>, D = any>(
    url: string,
    data?: D,
    config?: EAxiosRequestConfig<D>
  ): Promise<R>
  put<T = any, R = AxiosResponse<T>, D = any>(
    url: string,
    data?: D,
    config?: EAxiosRequestConfig<D>
  ): Promise<R>
  patch<T = any, R = AxiosResponse<T>, D = any>(
    url: string,
    data?: D,
    config?: EAxiosRequestConfig<D>
  ): Promise<R>
}

export interface EAxiosInstance extends EAxios {
  <T = any>(config: EAxiosRequestConfig): Promise<T>
  <T = any>(url: string, config?: EAxiosRequestConfig): Promise<T>
}