import type { AxiosError } from 'axios';
import { axiosInstance } from '@/api/rbac';
import { omsUrl, unwrapData } from '@/api/oms/common';
import type {
  WeChatCustomerBindInput,
  WeChatCustomerRegisterInput,
  WeChatCustomerRegisterResult,
  WeChatOAuthUserInfo,
  WxFollowQrcodeResult,
  WxLoginQrcodeResult,
  WxLoginResult,
} from './types';

export * from './types';

function unwrapOrSelf<T>(body: unknown): T {
  if (body == null || typeof body !== 'object') {
    return body as T;
  }
  const record = body as Record<string, unknown>;
  if (
    'qrCodeUrl' in record ||
    'jumpUrl' in record ||
    'accessToken' in record ||
    'openid' in record
  ) {
    return body as T;
  }
  return unwrapData<T>(body);
}

/** 获取微信公众号登录二维码（loginUuid 可选，不传则由后端生成 key） */
export async function getLoginQrcode(loginUuid?: string): Promise<WxLoginQrcodeResult> {
  const res = await axiosInstance.get(omsUrl('/wechat/mp/login-qrcode'), {
    params: loginUuid ? { loginUuid } : undefined,
  });
  return unwrapOrSelf<WxLoginQrcodeResult>(res.data);
}

/** 获取注册成功后跳转的公众号链接 */
export async function getFollowQrcode(): Promise<WxFollowQrcodeResult> {
  const res = await axiosInstance.get(omsUrl('/wechat/mp/follow-qrcode'));
  return unwrapOrSelf<WxFollowQrcodeResult>(res.data);
}

/** 查询扫码 key 是否已关联账号（轮询用，无值时不抛错） */
export async function getWxLoginStatus(loginUuid: string): Promise<WxLoginStatusResult> {
  const res = await axiosInstance.get('/rbac/auth/wx-login/status', {
    params: { loginUuid },
  });
  return unwrapOrSelf<WxLoginStatusResult>(res.data);
}

/** 是否属于「等待扫码」类错误（轮询时应静默继续） */
export function isWxLoginPendingError(error: unknown): boolean {
  const axiosErr = error as AxiosError<{ message?: string; Message?: string }>;
  const message =
    axiosErr?.response?.data?.message ??
    axiosErr?.response?.data?.Message ??
    axiosErr?.message ??
    '';
  const pendingHints = ['请扫码', '扫码登录', '等待扫码', '未扫码'];
  return pendingHints.some((hint) => message.includes(hint));
}

/** 微信扫码登录轮询 */
export async function wxLogin(loginUuid: string): Promise<WxLoginResult> {
  const res = await axiosInstance.post('/rbac/auth/wx-login', { loginUuid });
  return unwrapOrSelf<WxLoginResult>(res.data);
}

/** 微信网页授权登录（H5 点按钮，无需扫码） */
export async function wxOAuthLogin(code: string): Promise<WxLoginResult> {
  const res = await axiosInstance.post('/rbac/auth/wx-oauth-login', { code });
  return unwrapOrSelf<WxLoginResult>(res.data);
}

/** OAuth code 换取微信用户信息 */
export async function getOAuthUserInfo(code: string): Promise<WeChatOAuthUserInfo> {
  const res = await axiosInstance.post(omsUrl('/wechat/oauth/user-info'), { code });
  return unwrapOrSelf<WeChatOAuthUserInfo>(res.data);
}

/** 微信授权注册客户 */
export async function registerByWechat(
  input: WeChatCustomerRegisterInput,
): Promise<WeChatCustomerRegisterResult> {
  const res = await axiosInstance.post(omsUrl('/wechat/customer/register'), input);
  return unwrapOrSelf<WeChatCustomerRegisterResult>(res.data);
}

/** 微信授权绑定已有客户 */
export async function bindByWechat(input: WeChatCustomerBindInput): Promise<void> {
  const res = await axiosInstance.post(omsUrl('/wechat/customer/bind'), input);
  unwrapOrSelf(res.data);
}