✨ Add parser scripts

server/parser/untis.js

@@ -0,0 +1,66 @@
+import * as cheerio from "cheerio";
+const titles = [
+  "class",
+  "date",
+  "lesson",
+  "teacher",
+  "changedTeacher",
+  "subject",
+  "room",
+  "type",
+  "notes",
+];
+
+export function parseSubstitutionPlan(html) {
+  const infos = {};
+  const $ = cheerio.load(html);
+
+  // Extract the date, weekday and a/b week from the title
+  const title = $(".mon_title").text().split(" ");
+  const rawDate = title[0];
+  const date = rawDate
+    .split(".")
+    .reverse()
+    .map((e) => e.padStart(2, 0))
+    .join("-");
+  infos.date = new Date(date).setUTCHours(0, 0, 0, 0);
+  infos.week = title[3];
+
+  // Get the export timestamp
+  const rawTimestamp = $(".mon_head td")
+    .text()
+    .split("Stand: ")[1]
+    .replace(/[\s\n]*$/g, "");
+  const exportDate = rawTimestamp.split(" ")[0].split(".").reverse().join("-");
+  const timestamp = exportDate + " " + rawTimestamp.split(" ")[1];
+  infos.updatedAt = new Date(timestamp).getTime();
+
+  const data = [];
+  const subsitutionTable = $("table.mon_list tr.list");
+  // Loop through each table row
+  subsitutionTable.each((_rowcnt, row) => {
+    const rowData = {};
+
+    // Find the columns and ignore empty ones
+    const columns = $(row).find("td");
+    if (columns.text() == "") return;
+    // Ignore columns that include "Keine Vertretungen"
+    // to have an empty array if there are no substitutions
+    if (columns.text().includes("Keine Vertretungen")) return;
+
+    columns.each((columncnt, column) => {
+      const text = $(column).text();
+      // Clean the text by removing new lines, tabs, ...
+      var cleantext = text.replace(/^\n\s*/g, "").replace(/\s*$/, "");
+      if (cleantext == "" || cleantext == "---") cleantext = null;
+
+      const columntitle = titles[columncnt];
+      rowData[columntitle] = cleantext;
+    });
+
+    data.push(rowData);
+  });
+
+  infos.changes = data;
+  return infos;
+}