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/**
* Copyright (C) 2018 Noah Loomans
*
* This file is part of rooster.hetmml.nl.
*
* rooster.hetmml.nl is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* rooster.hetmml.nl is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with rooster.hetmml.nl. If not, see <http://www.gnu.org/licenses/>.
*
*/
const cheerio = require('cheerio');
const _ = require('lodash');
/**
* Scrape all the valid users from a meetingpoint navbar.
* @param {string} html The html of a meetingpoint navbar.
* @returns {*}
* [
* { type: 't', value: 'akh', index: 0 },
* ...
* { type: 's', value: '18561', index: 245 },
* ...
* { type: 'r', value: '008-mk', index: 2 },
* ...
* { type: 'c', value: '6-5H2', index: 23 },
* ...
* ]
*/
function scrapeUsers(html) {
const page = cheerio.load(html);
const script = page('script').eq(1).text();
const regexs = [/var classes = \[(.+)\];/, /var teachers = \[(.+)\];/, /var rooms = \[(.+)\];/, /var students = \[(.+)\];/];
const items = regexs.map(regex => script.match(regex)[1].split(',').map(item => item.replace(/"/g, '')));
const classes = items[0].map((name, index) => ({
key: `c/${name}`,
type: 'class',
name,
index,
}));
const teachers = items[1].map((name, index) => ({
key: `t/${name}`,
type: 'teacher',
name,
index,
}));
const rooms = items[2].map((name, index) => ({
key: `r/${name}`,
type: 'room',
name,
index,
}));
const students = items[3].map((name, index) => ({
key: `s/${name}`,
type: 'student',
name,
index,
}));
return _.flatten([classes, teachers, rooms, students]);
}
/**
* scrape the alt text (the text next to the short code) from a
* specific meetingpoint schedule.
* @param {string} html The html of a specific meetingpoint schedule.
* @returns {string}
*/
function scrapeAltName(html) {
const page = cheerio.load(html);
return page('center > font').eq(2).text().trim() || undefined;
}
module.exports.scrapeUsers = scrapeUsers;
module.exports.scrapeAltName = scrapeAltName;
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