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 | const express = require('express');
const router = express.Router();
const request = require('request');
const iconv = require('iconv-lite');
const getMeetingpointData = require('../lib/getMeetingpointData');
const getURLOfUser = require('../lib/getURLOfUser');
// 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 getWeekNumber(target) {
  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);
}
router.get('/:type/:value', (req, res, next) => {
  getMeetingpointData().then(({ users }) => {
    const { type, value } = req.params;
    let { week } = req.query;
    const user =
      users.filter(user_ => user_.type === type && user_.value === value)[0];
    if (!user) {
      next(new Error(`${type}${value} is not in the user index.`));
    }
    if (!week) {
      week = getWeekNumber(new Date());
    }
    const { index } = user;
    const scheduleType = req.query.type || 'dag';
    const url = getURLOfUser(scheduleType, type, index, week);
    request(url, { encoding: null }, (err, data) => {
      if (err) {
        next(err);
        return;
      }
      const utf8Body = iconv.decode(data.body, 'ISO-8859-1');
      res.status(data.statusCode).end(utf8Body);
    });
  });
});
module.exports = router;
 |