feat(timeframes): Simple implementation of timeframes.

This feature is for tracking final grades after a certain peroid of
time. Currently this feature does not integrate with most of the app. It
just works on its own.

Author: mikebarkmin

.vibe/AGENTS.md

@@ -151,6 +151,34 @@
   "group_name": "Gruppenname",
   "groups": "Gruppen",
   "had_homework": "Hausaufgaben gemacht",
+  "timeframes": "Zeiträume",
+  "add_timeframe": "Zeitraum hinzufügen",
+  "edit_timeframe": "Zeitraum bearbeiten",
+  "timeframe_label": "Bezeichnung",
+  "start_date": "Startdatum",
+  "end_date": "Enddatum",
+  "final_grade": "Endnote",
+  "set_grade": "Note setzen",
+  "change_grade": "Note ändern",
+  "no_timeframes": "Noch keine Zeiträume. Tippen zum Hinzufügen.",
+  "delete_timeframe": "Zeitraum löschen",
+  "delete_timeframe_confirmation": "Möchtest du diesen Zeitraum wirklich löschen?",
+  "overlapping_timeframes": "Überlappende Zeiträume",
+  "this_timeframe_overlaps_with": "Dieser Zeitraum überschneidet sich mit:",
+  "save_anyway": "Trotzdem speichern",
+  "end_date_must_be_after_start_date": "Das Enddatum muss nach dem Startdatum liegen",
+  "overlaps_with": "Überschneidet sich mit: {timeframes}",
+  "student_grades": "Schülernoten",
+  "grades": "Noten",
+  "no_grade": "Keine Note",
+  "view_grades": "Noten anzeigen",
+  "grades_overview": "Notenübersicht",
+  "average_grade": "Durchschnittsnote",
+  "attendance_rate": "Anwesenheit",
+  "material_rate": "Material",
+  "homework_rate": "Hausaufgaben",
+  "view_notes": "Notizen anzeigen",
+  "no_notes_for_student": "Keine Notizen für diesen Schüler",
   "had_material": "Material dabei",
   "homework": "Hausaufgaben",
   "homework_summary": "{count} von {total} Hausaufgabenkontrollen erledigt ({percent}%)",

assets/translations/de.json

@@ -151,6 +151,34 @@
   "group_name": "Group name",
   "groups": "Groups",
   "had_homework": "Had homework",
+  "timeframes": "Timeframes",
+  "add_timeframe": "Add Timeframe",
+  "edit_timeframe": "Edit Timeframe",
+  "timeframe_label": "Label",
+  "start_date": "Start Date",
+  "end_date": "End Date",
+  "final_grade": "Final Grade",
+  "set_grade": "Set Grade",
+  "change_grade": "Change Grade",
+  "no_timeframes": "No timeframes yet. Tap to add one.",
+  "delete_timeframe": "Delete Timeframe",
+  "delete_timeframe_confirmation": "Are you sure you want to delete this timeframe?",
+  "overlapping_timeframes": "Overlapping Timeframes",
+  "this_timeframe_overlaps_with": "This timeframe overlaps with:",
+  "save_anyway": "Save Anyway",
+  "end_date_must_be_after_start_date": "End date must be after start date",
+  "overlaps_with": "Overlaps with: {timeframes}",
+  "student_grades": "Student Grades",
+  "grades": "grades",
+  "no_grade": "No grade",
+  "view_grades": "View Grades",
+  "grades_overview": "Grades Overview",
+  "average_grade": "Avg Grade",
+  "attendance_rate": "Attendance",
+  "material_rate": "Material",
+  "homework_rate": "Homework",
+  "view_notes": "View Notes",
+  "no_notes_for_student": "No notes for this student",
   "had_material": "Had material",
   "homework": "Homework",
   "homework_summary": "{count} of {total} homework checks complete ({percent}%)",

assets/translations/en.json

@@ -15,6 +15,8 @@ import 'tables/seating_plan_positions_table.dart';
 import 'tables/seating_plans_table.dart';
 import 'tables/sessions_table.dart';
 import 'tables/students_table.dart';
+import 'tables/timeframe_grades_table.dart';
+import 'tables/timeframes_table.dart';
 
 part 'app_database.g.dart';
 
@@ -25,6 +27,8 @@ typedef MaterialLog = MaterialLogsTableData;
 typedef HomeworkLog = HomeworkLogsTableData;
 typedef AttendanceLog = AttendanceLogsTableData;
 typedef Session = SessionsTableData;
+typedef Timeframe = TimeframesTableData;
+typedef TimeframeGrade = TimeframeGradesTableData;
 
 @DriftDatabase(
   tables: [
@@ -40,6 +44,8 @@ typedef Session = SessionsTableData;
     SeatingPlansTable,
     SeatingPlanPositionsTable,
     SessionsTable,
+    TimeframesTable,
+    TimeframeGradesTable,
   ],
 )
 class AppDatabase extends _$AppDatabase {
@@ -61,7 +67,7 @@ class AppDatabase extends _$AppDatabase {
   final String databasePath;
 
   @override
-  int get schemaVersion => 18;
+  int get schemaVersion => 21;
 
   @override
   MigrationStrategy get migration => MigrationStrategy(
@@ -185,6 +191,12 @@ class AppDatabase extends _$AppDatabase {
           ON CONFLICT(group_id, date, category_id) DO NOTHING
         ''');
       }
+      if (from < 19) {
+        await migrator.createTable(timeframesTable);
+      }
+      if (from < 21) {
+        await migrator.createTable(timeframeGradesTable);
+      }
     },
   );