class utils {

  random(len) {
    len = len || 32;
    var $chars = 'ABCDEFGHJKMNPQRSTWXYZabcdefhijkmnprstwxyz2345678';
    /****默认去掉了容易混淆的字符oOLl,9gq,Vv,Uu,I1****/
    var maxPos = $chars.length;
    var pwd = '';
    for (var i = 0; i < len; i++) {
      pwd += $chars.charAt(Math.floor(Math.random() * maxPos));
    }
    return pwd;
  }

  time(time) {
    var d = time ? new Date(time) : new Date();
    var year = d.getFullYear();
    var month = d.getMonth() + 1;
    var day = d.getDate();
    var hours = d.getHours();
    var min = d.getMinutes();
    var seconds = d.getSeconds();

    if (month < 10) month = '0' + month;
    if (day < 10) day = '0' + day;
    if (hours < 0) hours = '0' + hours;
    if (min < 10) min = '0' + min;
    if (seconds < 10) seconds = '0' + seconds;

    return (year + '-' + month + '-' + day + ' ' + hours + ':' + min + ':' + seconds);
  }

  checkPhone(phone) {
    return /^1[3456789]\d{9}$/.test(phone)
  }

  checkIsLogin() {
    const isLogin = wx.getStorageSync('user')
    // 如果已经登录，那么直接跳转首页
    if (typeof isLogin == "object") {
      return true;
    } else {
      wx.showModal({
        title: '',
        content: '未登录，请先登录！',
        showCancel: false,
        success (res) {
          if (res.confirm) {
            wx.redirectTo({ url: '/pages/account/account' })
          }
        }
      })
    }
  }

  showToast(options) {
    const duration = options.duration || 2000
    wx.showToast(options)
    if (options.close) {
      setTimeout(() => { options.close('hideToast') }, duration)
    }
  }

  test() {
    console.log("工具函数");
  }

}

export default new utils();