akf-forum/routes/categories.js

const { CategoryModel, ThreadModel } = require("../models");

const { Router } = require("express");

const app = Router();
app.get("/", async (req, res) => {
    const page = Number(req.query.page) || 0;

    const categories = await CategoryModel.find({}).limit(10).skip(page * 10).sort({ time: -1 });
    res.reply("categories", {
        categories, page,
        pages: Math.ceil(await CategoryModel.count({}) / 10)
    });
});

app.get("/create", (req, res) => res.reply("create_category"));
app.get("/:id", async (req, res) => {
    const category = await CategoryModel.findOne({ id: req.params.id });
    if (!category) return res.error(404, "Category not found.");
    const page = Number(req.query.page) || 0;
    const query = { categoryID: category.id };
    if (!req.user?.admin) query.deleted = false;

    let threads = await ThreadModel.find(query).limit(10).skip(page * 10).sort({ time: -1 });
    threads = await Promise.all(threads.map(thread => thread.get_author()));

    res.reply("threads", { threads, page, title: `Threads in ${category.name}`, desp: category.desp, pages: Math.ceil(await ThreadModel.count(query) / 10) });
});

module.exports = app;