feat: Absences

scrape/utils/parseAbsence.js

@@ -0,0 +1,44 @@
+function parseAbsence(str, teacherMap) {
+  str = str.trim().replace(/\s+/g, " ");
+
+  const result = {
+    teacher: null, // String or null
+    teacherCode: null, // String or null
+    type: null,   // "wholeDay" | "range" | "single" | "invalid"
+    hours: null // { from: number, to: number } or number
+  };
+
+  // Regex patterns (with flexible spaces)
+  const wholeDayPattern = /^([A-Za-z]+)$/;                   
+  const rangePattern = /^(\d+)\s*-\s*(\d+)\s+([A-Za-z]+)$/;  
+  const singleHourPattern = /^(\d+)\s+([A-Za-z]+)$/;         
+
+  if (rangePattern.test(str)) {
+    const [, from, to, teacherCode] = str.match(rangePattern);
+    result.teacher = teacherMap[teacherCode.toLowerCase()];
+    result.teacherCode = teacherCode;
+    result.type = "range";
+    result.hours = { from: parseInt(from), to: parseInt(to) };
+  } 
+  else if (singleHourPattern.test(str)) {
+    const [, hour, teacherCode] = str.match(singleHourPattern);
+    result.teacher = teacherMap[teacherCode.toLowerCase()];
+    result.teacherCode = teacherCode;
+    result.type = "single";
+    result.hours = parseInt(hour);
+  } 
+  else if (wholeDayPattern.test(str)) {
+    const [, teacherCode] = str.match(wholeDayPattern);
+    result.teacher = teacherMap[teacherCode.toLowerCase()];
+    result.teacherCode = teacherCode;
+    result.type = "wholeDay";
+  } 
+  else {
+    result.type = "invalid";
+    result.original = str;
+  }
+
+  return result;
+}
+
+module.exports = parseAbsence;