import Cookies from 'js-cookie';

export function getUrlParam(key) {
  const href = window.location.href;
  const url = href.split('?');
  if (url.length <= 1) {
    return '';
  }
  const params = url[1].split('&');

  for (let i = 0; i < params.length; i++) {
    const param = params[i].split('=');
    if (key === param[0]) {
      return param[1];
    }
  }
  return '';
}

export function getIdentifierKey() {
  let identifierKey = 'identifier';
  const domain = window.location.host;
  const match = domain.match(/-((stg)|(pre)|(gra)|(dev))/g);
  if (match) {
    identifierKey = (identifierKey + match[0].replace('-', '_')).replace('_pre', '_pre_1');
  } else if (domain.includes('localhost') || domain.includes('172.30.66.168')) {
    identifierKey = identifierKey + '_local';
  }
  // else {
  //   // 如果是本地的地址访问也应该存
  //   identifierKey = identifierKey + "_local";
  // }
  return identifierKey;
}

export function getRootDomain() {
  let rootDomain = '';
  const domain = window.location.host;
  if (domain.includes('localhost')) {
    rootDomain = 'localhost';
  } else if (domain.includes('172.30.66.168')) {
    rootDomain = '172.30.66.168';
  } else {
    const temp = domain.split('.').reverse();
    rootDomain = `.${temp[1]}.${temp[0]}`;
  }
  return rootDomain;
}

const identifierKey = getIdentifierKey();
const rootDomain = getRootDomain();

export function getToken() {
  const identifier = getUrlParam('identifier'); // 1
  // const account = getUrlParam('account');
  if (identifier) {
    setToken(identifier);

    const href = window.location.href;
    const url = href.split('?');
    // 没携带query参数
    if (url[1].startsWith('account')) {
      window.location.href = url[0];
      // 携带了1个或者多个query参数
    } else {
      let param = '';
      const paramArr = url[1].split('&');
      const index = paramArr.findIndex((item) => {
        return item.startsWith('account');
      });
      for (let i = 0; i < index; i++) {
        if (i === index - 1) {
          param += paramArr[i];
        } else {
          param += paramArr[i] + '&';
        }
      }
      window.location.href = url[0] + '?' + param;
    }
  }
  const ca = document.cookie.split(';');
  const cookiesMap: Record<string, string> = {};
  for (let i = 0; i < ca.length; i++) {
    const c = ca[i];
    if (c.trim()) {
      const [ckey, cvalue] = c.split('=');
      cookiesMap[ckey.trim()] = cvalue.trim();
    }
    if (cookiesMap[identifierKey]) {
      return cookiesMap[identifierKey];
    }
  }
  setToken(cookiesMap.identifier || '');
  return cookiesMap.identifier || '';
}

export function removeToken() {
  Cookies.remove(identifierKey);
}

export function setToken(identifier) {
  // document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/";
  document.cookie = `${identifierKey}=${identifier};path=/;domain=${rootDomain}`;
}

export default {
  getToken,
  removeToken,
};