mega commit: ics, readme updates, easier usage

1 files changed, 62 insertions, 0 deletions

diff --git a/src/ics.js b/src/ics.js
new file mode 100644
index 0000000..ebf6480
--- /dev/null
+++ b/src/ics.js
@@ -0,0 +1,62 @@
+import * as ics from "ics"
+
+import { prepare } from "./main.js"
+import { c, writeICS } from "./files.js"
+
+const daymap = {
+  "Mo": "MO",
+  "Di": "TU",
+  "Mi": "WE",
+  "Do": "TH",
+  "Fr": "FR",
+}
+
+let start = new Date(c.vorlesungszeit[0])
+let end = new Date(c.vorlesungszeit[1])
+
+function getDateList(date, time) {
+  let year = date.getFullYear() - 0
+  let month = date.getMonth() - 0
+  let day = date.getDate() - 0
+
+  let timelist = time.split(":")
+
+  let hour = timelist[0] - 0
+  let minute = timelist[1] - 0
+
+  return [year, month, day, hour, minute]
+}
+
+function generateICS() {
+  let tage = prepare(true);
+  let veranstaltungen = []
+
+  for (let tag in tage) {
+    for (let eintrag of tage[tag]) {
+      let until = end.toISOString().replace(/-|\.|:/g, "").replace("000000000", "000000");
+      let day = daymap[tag];
+
+      if (!eintrag.name.includes("STYLECLASS")) {
+        veranstaltungen.push({
+          title: eintrag.name,
+          location: eintrag.raum,
+          start: getDateList(start, eintrag.von),
+          end: getDateList(start, eintrag.bis), // yes this is correct
+          recurrenceRule: `FREQ=WEEKLY;INTERVAL=1;BYDAY=${day};UNTIL=${until}`
+        })
+      }
+    }
+
+    start.setDate(start.getDate() + 1);
+  }
+
+  const { error, value } = ics.createEvents(veranstaltungen)
+
+  if (error) {
+    console.log(error)
+  } else {
+    writeICS(value)
+  }
+}
+
+generateICS()