// admin.js
// Copyright (C) 2024 Digital Telepresence, LLC
// All Rights Reserved

'use strict';

import path, { dirname } from 'path';
import { fileURLToPath } from 'url';
const __dirname = dirname(fileURLToPath(import.meta.url)); // jshint ignore:line

import mongoose from 'mongoose';
const User = mongoose.model('User');
const ChatImage = mongoose.model('Image');
const Video = mongoose.model('Video');

import express from 'express';

import { SiteController, SiteError } from '../../lib/site-lib.js';

export default class AdminController extends SiteController {

  static get name      ( ) { return 'AdminController'; }
  static get slug      ( ) { return 'admin'; }

  constructor (dtp) {
    super(dtp, AdminController);
  }

  async start ( ) {
    const { session: sessionService } = this.dtp.services;

    const router = express.Router();
    this.dtp.app.use('/admin', router);

    const authRequired = sessionService.authCheckMiddleware({ requireLogin: true, requireAdmin: true });
    router.use(authRequired);

    router.use('/user', await this.loadChild(path.join(__dirname, 'admin', 'user.js')));

    router.get(
      '/',
      this.getDashboard.bind(this),
    );

    return router;
  }

  async getDashboard (req, res, next) {
    const { user: userService } = this.dtp.services;
    try {
      res.locals.currentView = 'admin';

      res.locals.stats = {
        userCount: await User.estimatedDocumentCount(),
        imageCount: await ChatImage.estimatedDocumentCount(),
        videoCount: await Video.estimatedDocumentCount(),
      };

      res.locals.latestSignups = await userService.getLatestSignups(10);

      res.render('admin/dashboard');
    } catch (error) {
      this.error.log('failed to present the admin dashboard', { error });
      return next(error);
    }
  }
}