type WxLoginConfig = {
  redirect_uri?: string;
  appid?: string;
  scope?: string;
  state?: string;
  style?: string;
};
export const createLogin = async (config?: WxLoginConfig) => {
  let redirect_uri = config?.redirect_uri;
  const { appid } = config || {};
  if (!redirect_uri) {
    redirect_uri = window.location.href;
  }
  const url = new URL(redirect_uri); // remove code and state params
  url.searchParams.delete('code');
  url.searchParams.delete('state');
  redirect_uri = url.toString();
  
  console.log('redirect_uri', redirect_uri);
  if (!appid) {
    console.error('appid is not cant be empty');
    return;
  }
  // @ts-ignore
  const obj = new WxLogin({
    self_redirect: false,
    id: 'weixinLogin', // 需要显示的容器id
    appid: appid, // 微信开放平台appid wx*******
    scope: 'snsapi_login', // 网页默认即可 snsapi_userinfo
    redirect_uri: encodeURIComponent(redirect_uri), // 授权成功后回调的url
    state: Math.ceil(Math.random() * 1000), // 可设置为简单的随机数加session用来校验
    stylelite: true, // 是否使用简洁模式
    // https://juejin.cn/post/6982473580063752223
    href: "data:text/css;base64,LmltcG93ZXJCb3ggLnFyY29kZSB7d2lkdGg6IDIwMHB4O30NCi5pbXBvd2VyQm94IC50aXRsZSB7ZGlzcGxheTogbm9uZTt9DQouaW1wb3dlckJveCAuaW5mbyB7d2lkdGg6IDIwMHB4O30NCi5zdGF0dXNfaWNvbiB7ZGlzcGxheTogbm9uZX0NCi5pbXBvd2VyQm94IC5zdGF0dXMge3RleHQtYWxpZ246IGNlbnRlcjt9"
  });
  const login = document.querySelector('#weixinLogin')
  if (login) {
    // login 下的 iframe 样式调整
    const iframe = login.querySelector('iframe');
    if (iframe) {
      // iframe.style.width = '200px';
      iframe.style.height = '300px';
    }
  }
  return obj;
};
export const wxId = 'weixinLogin';
export function setWxerwma(config?: WxLoginConfig) {
  const s = document.createElement('script');
  s.type = 'text/javascript';
  s.src = '//res.wx.qq.com/connect/zh_CN/htmledition/js/wxLogin.js';
  s.id = 'weixinLogin-js';
  if (document.getElementById('weixinLogin-js')) {
    createLogin(config);
    return;
  }
  const wxElement = document.body.appendChild(s);
  wxElement.onload = function () {
    createLogin(config);
  };
}