Node.js 在mongoose+；中查找自最近n天以来未登录的用户数据；节点js

以下是我使用mongoose/node的要求-

我有两个集合，比如user和userActivities以及 具有用户日志的userActivities，当用户登录时，每次数据插入userActivities集合时

用户架构类似于：

const userSchema = new Schema({
userEmail: {
type: 'String',
required: true,
trim: true
},
password: {
type: 'String',
required: true,
trim: true
},
firstName: {
type: 'String',
required: true,
trim: true
},
lastName: {
type: 'String',
required: true,
trim: true
},
registerDate: {
type: Date,
default: Date.now
}

});

const userActivitySchema = new Schema({
ip: {
type: 'String',
required: true,
trim: true
},
userAgent: {
type: 'String',
required: true,
trim: true
},

user: {
type:Schema.Types.ObjectId,
ref:"users"
},

loggedInDate: {
type: Date,
required: true,
default: Date.now
},
});

用户活动模式，如：

const userSchema = new Schema({
userEmail: {
type: 'String',
required: true,
trim: true
},
password: {
type: 'String',
required: true,
trim: true
},
firstName: {
type: 'String',
required: true,
trim: true
},
lastName: {
type: 'String',
required: true,
trim: true
},
registerDate: {
type: Date,
default: Date.now
}

});

const userActivitySchema = new Schema({
ip: {
type: 'String',
required: true,
trim: true
},
userAgent: {
type: 'String',
required: true,
trim: true
},

user: {
type:Schema.Types.ObjectId,
ref:"users"
},

loggedInDate: {
type: Date,
required: true,
default: Date.now
},
});

函数如下所示：

async function getNotLoggedIn() {
let now = new Date();
let notLoggedInDays = 5;
now = new Date(now.setDate(now.getDate() - notLoggedInDays));
let notLoggedInUserData = await UserActivity.find({loggedInDate: {$lte: now}});
let userid = notLoggedInUserData.map(a => a.user)    
return await User.find({'_id': { $in: userid}});}

我想查找自n天以来未登录的用户活动的所有记录。 请建议