// admin/user.js
// Copyright (C) 2022 DTP Technologies, LLC
// License: Apache-2.0

'use strict';

const express = require('express');

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

class UserAdminController extends SiteController {

  constructor (dtp) {
    super(dtp, module.exports);
  }

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

    router.param('localUserId', this.populateLocalUserId.bind(this));
    router.post('/local/:localUserId', this.postUpdateLocalUser.bind(this));
    router.get('/local/:localUserId', this.getLocalUserView.bind(this));

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

    return router;
  }

  async populateLocalUserId (req, res, next, localUserId) {
    const { user: userService } = this.dtp.services;
    try {
      res.locals.userAccount = await userService.getLocalUserAccount(localUserId);
      if (!res.locals.userAccount) {
        throw new SiteError(404, 'User not found');
      }
      return next();
    } catch (error) {
      return next(error);
    }
  }

  async postUpdateLocalUser (req, res, next) {
    const {
      logan: loganService,
      user: userService,
    } = this.dtp.services;
    try {
      this.log.debug('local user update', { action: req.body.action });
      switch (req.body.action) {
        case 'update':
          await userService.updateLocalForAdmin(res.locals.userAccount, req.body);
          loganService.sendRequestEvent(module.exports, req, {
            level: 'info',
            event: 'postUpdateLocalUser',
            message: 'local user account updated',
            data: {
              userAccount: {
                _id: res.locals.userAccount._id,
                username: res.locals.userAccount.username,
              },
            },
          });
          break;

        case 'ban':
          await userService.ban(res.locals.userAccount);
          loganService.sendRequestEvent(module.exports, req, {
            level: 'info',
            event: 'postUpdateLocalUser',
            message: 'local user banned from the app',
            data: {
              userAccount: {
                _id: res.locals.userAccount._id,
                username: res.locals.userAccount.username,
              },
            },
          });
          break;
      }
      res.redirect('/admin/user');
    } catch (error) {
      return next(error);
    }
  }

  async getLocalUserView (req, res, next) {
    const { comment: commentService } = this.dtp.services;
    try {
      res.locals.pagination = this.getPaginationParameters(req, 20);
      res.locals.recentComments = await commentService.getForAuthor(res.locals.userAccount, res.locals.pagination);
      res.render('admin/user/form');
    } catch (error) {
      this.log.error('failed to produce user view', { error });
      return next(error);
    }
  }

  async getHomeView (req, res, next) {
    const { user: userService } = this.dtp.services;
    try {
      res.locals.pagination = this.getPaginationParameters(req, 10);
      res.locals.userAccounts = await userService.searchLocalUserAccounts(res.locals.pagination, req.query.u);
      res.locals.totalUserCount = await userService.getTotalCount();
      res.render('admin/user/index');
    } catch (error) {
      return next(error);
    }
  }
}

module.exports = {
  name: 'adminUser',
  slug: 'admin-user',
  className: 'UserAdminController',
  create: async (dtp) => { return new UserAdminController(dtp); },
};