const crypto = require('crypto');
const moment = require('moment');

const utils = {
  md5(key) {
    const hash = crypto.createHash('md5');
    return hash.update(key).digest('hex').toUpperCase();
  },
  dateFormat(date) {
    return moment(date).format('YYYY-MM-DD HH:mm:ss');
  },
  async fill(data, func) {
    if (!data) {
      return;
    }
    if (Array.isArray(data)) {
      data = await Promise.all(
        data.map(async item => {
          return func(item);
        })
      );
    } else {
      data = await func(data);
    }
    return data;
  },
  createTradeNo() {
    return moment().format('YYYYMMDDHHmmssS') + Math.floor(Math.random() * 1000);
  },
  setCookie(obj) {
    const { res, key, value, domain, expires = 2592e5 } = obj;
    try {
      return res.cookie(key, value, {
        domain,
        path: '/',
        expires: new Date(Date.now() + expires),
        httpOnly: false,
      });
    } catch (error) {
      console.error('写入cookie错误', error);
    }
  },
  clearCookie(res, key, domain = process.env.DEMAIN) {
    try {
      return res.clearCookie(key, {
        domain,
        path: '/',
        httpOnly: false,
      });
    } catch (error) {
      console.error('删除cookie错误', error);
    }
  },
  onSuccess(data, msg) {
    return {
      code: 0,
      data,
      msg,
    };
  },
  onError(msg, data) {
    return {
      code: utils[msg] || -1,
      msg,
      data,
    };
  },
  MESSAGE: {
    没有权限: 1,
  },
};

module.exports = utils;