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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 express = require('express');
const router = express.Router();
const { getUsers } = require('../../shared/lib/db');
const getURLOfUser = require('../../shared/lib/getURLOfUser');
const axios = require('../../shared/lib/axios');
const parseSchedule = require('../lib/parseSchedule');
// copied from http://www.meetingpointmco.nl/Roosters-AL/doc/dagroosters/untisscripts.js,
// were using the same code as they do to be sure that we always get the same
// week number.
function currentWeekNumber() {
const target = new Date();
const dayNr = (target.getDay() + 6) % 7;
// eslint-disable-next-line
target.setDate(target.getDate() - dayNr + 3);
const firstThursday = target.valueOf();
target.setMonth(0, 1);
if (target.getDay() !== 4) {
// eslint-disable-next-line
target.setMonth(0, 1 + ((4 - target.getDay()) + 7) % 7);
}
return 1 + Math.ceil((firstThursday - target) / 604800000);
}
async function getSchedule(userType, userName, week, scheduleType = 'dag') {
const users = await getUsers();
const user = users.filter(user_ => (
user_.type === userType && user_.name === userName
))[0];
if (!user) {
throw new Error(`${userType}/${userName} is not in the user index.`);
}
if (!week) {
week = currentWeekNumber(); // eslint-disable-line no-param-reassign
}
const { index } = user;
const url = getURLOfUser(scheduleType, userType, index, week);
return axios.get(url);
}
router.get('/:type/:value.json', (req, res, next) => {
const { type, value } = req.params;
const { week, type: scheduleType } = req.query;
getSchedule(type, value, week, scheduleType)
.then((response) => {
const schedule = parseSchedule(response);
res.json(schedule);
})
.catch((err) => {
if (err.response) {
// eslint-disable-next-line no-param-reassign
err.status = err.response.status;
}
next(err);
});
});
router.get('/:type/:value', (req, res, next) => {
const { type, value } = req.params;
const { week, type: scheduleType } = req.query;
getSchedule(type, value, week, scheduleType)
.then((response) => {
res.status(response.status).end(response.data);
})
.catch((err) => {
if (err.response) {
// eslint-disable-next-line no-param-reassign
err.status = err.response.status;
}
next(err);
});
});
module.exports = router;
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