1 files changed, 55 insertions, 0 deletions
diff --git a/src/server/routes/getSchedule.js b/src/server/routes/getSchedule.js
new file mode 100644
index 0000000..f6c3cb6
--- /dev/null
+++ b/src/server/routes/getSchedule.js
@@ -0,0 +1,55 @@
+const express = require('express')
+const router = express.Router()
+const request = require('request')
+const iconv = require('iconv-lite')
+
+const getUserIndex = require('../lib/getUserIndex')
+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
+  target.setDate(target.getDate() - dayNr + 3)
+  const firstThursday = target.valueOf()
+  target.setMonth(0, 1)
+  if (target.getDay() !== 4) {
+    target.setMonth(0, 1 + ((4 - target.getDay()) + 7) % 7)
+  }
+
+  return 1 + Math.ceil((firstThursday - target) / 604800000)
+}
+
+router.get('/:type/:value', function (req, res, next) {
+  getUserIndex().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 url = getURLOfUser(type, index, week)
+
+    request(url, { encoding: null }, function (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