From 0e9a1a8018d528304365359cf668d892231850d4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Patrick=20M=C3=BCller?= <patrick@mueller-patrick.tech>
Date: Wed, 13 Oct 2021 16:10:12 +0200
Subject: [PATCH] #11: Adding method to calculate semester

---
 scripts.js | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/scripts.js b/scripts.js
index 6b275cf..a214553 100644
--- a/scripts.js
+++ b/scripts.js
@@ -83,6 +83,29 @@ let courseLinks = {
     'TINF20B5': {user: 'strand', file: 'TINF20B5'}
 }
 
+/**
+ * Calculates, in which semester the given course currently is
+ * @param course The course to calculate the semester for
+ * @returns {number} The number of the semester they are in
+ */
+function calculateSemester(course) {
+    let yearRegex = new RegExp('[a-zA-Z]*([0-9]{2})B[0-9]');
+
+    let match = yearRegex.exec(course);
+    let startYear = '20';
+    if (match !== null) {
+        startYear += match[1];
+    }
+
+    let currentYear = new Date().getFullYear();
+
+    let yearDifference = currentYear - startYear;
+
+    let semesters = yearDifference * 2 + 1;
+
+    return semesters;
+}
+
 /* Toggle Dark-Mode */
 
 const toggleDarkMode = () => {