// admin/host.js
// Copyright (C) 2021 Digital Telepresence, LLC
// License: Apache-2.0

'use strict';

const DTP_COMPONENT_NAME = 'admin:host';

const express = require('express');

const mongoose = require('mongoose');
const NetHost = mongoose.model('NetHost');
const NetHostStats = mongoose.model('NetHostStats');

const { /*SiteError,*/ SiteController } = require('../../../lib/site-lib');

class HostController extends SiteController {

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

  async start ( ) {
    const router = express.Router();
    router.use(async (req, res, next) => {
      res.locals.currentView = 'admin';
      res.locals.adminView = 'host';
      return next();
    });

    router.param('hostId', this.populateHostId.bind(this));

    router.get('/:hostId', this.getHostView.bind(this));

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

    return router;
  }

  async populateHostId (req, res, next, hostId) {
    try {
      res.locals.host = await NetHost.findOne({ _id: hostId });
      return next();
    } catch (error) {
      return next(error);
    }
  }

  async getHostView (req, res, next) {
    try {
      res.locals.stats = await NetHostStats
        .find({ host: res.locals.host._id })
        .sort({ created: -1 })
        .limit(30)
        .lean();
      res.locals.stats = res.locals.stats.reverse();
      res.render('admin/host/view');
    } catch (error) {
      return next(error);
    }
  }

  async getHomeView (req, res, next) {
    try {
      res.locals.hosts = await NetHost.find({ status: { $ne: 'inactive' } });
      res.render('admin/host/index');
    } catch (error) {
      return next(error);
    }
  }
}

module.exports = async (dtp) => {
  let controller = new HostController(dtp);
  return controller;
};