comty/packages/server/src/controllers/AdminController/endpoints/accounts_statistics.js

import { User, Session, Post } from "@shared-classes/DbModels"

export default {
    method: "GET",
    route: "/accounts_statistics",
    middlewares: ["withAuthentication", "onlyAdmin"],
    fn: async (req, res) => {
        // get number of users registered,
        const users = await User.count()

        // calculate the last 5 days logins from diferent users
        let last5D_logins = await Session.find({
            date: {
                $gte: new Date(Date.now() - 5 * 24 * 60 * 60 * 1000),
                $lte: new Date(),
            }
        })

        const last5D_logins_counts = []

        // filter from different users
        last5D_logins.forEach((session) => {
            if (!last5D_logins_counts.includes(session.user_id)) {
                last5D_logins_counts.push(session.user_id)
            }
        })

        // calculate active users within 1 week (using postings) 
        const active_1w_posts_users = await Post.count({
            user_id: {
                $in: last5D_logins_counts
            },
            created_at: {
                $gte: new Date(Date.now() - 7 * 24 * 60 * 60 * 1000),
                $lte: new Date(),
            }
        })

        // calculate total posts
        const total_posts = await Post.count()

        // calculate total post (1week)
        const total_posts_1w = await Post.count({
            created_at: {
                $gte: new Date(Date.now() - 7 * 24 * 60 * 60 * 1000),
                $lte: new Date(),
            }
        })

        return res.json({
            accounts_registered: users,
            last5D_logins: last5D_logins_counts.length,
            active_1w_posts_users: active_1w_posts_users,
            total_posts: total_posts,
            total_posts_1w: total_posts_1w,
        })
    }
}