timetable performance optimization

2026-09-25 22:27:10 +02:00
parent ef7d17033d
commit ed8e52f475
13 changed files with 391 additions and 137 deletions
@@ -213,10 +213,12 @@ class TimetableAppointmentFactory {
    return LessonColor.forStatus(status);
  }

-  McSubject? _findSubject(String? subjectShort) {
-    if (subjectShort == null) return null;
-    return subjects.where((s) => s.shortName == subjectShort).firstOrNull;
-  }
+  late final Map<String, McSubject> _subjectsByShort = {
+    for (final s in subjects.reversed) s.shortName: s,
+  };
+
+  McSubject? _findSubject(String? subjectShort) =>
+      subjectShort == null ? null : _subjectsByShort[subjectShort];

  String _subjectName(String? subjectShort, McTimetableEntry lesson) {
    if (subjectShort != null) {