Notenverwaltung (Kapitel 2) und Mitarbeits-Assistent

Notenübersicht der Gruppe (Matrix, Gesamt-Spalte, Sortierung, Halbjahresfilter),
Einzelnoten-Pflege samt Sammelerfassung, Gewichtungsschema mit Voreinstellung je
Gruppentyp, Zeugnisnoten-Berechnung mit Übersteuern/Festschreiben/Export und
Notenentwicklung im Schülerdetail.

Dazu Anwesenheits-/Hausaufgaben-Tracking je Mitarbeit-Sitzung, ein neuer
Mitarbeits-Assistent (Zeitleiste mit Abschnitten, automatischer Notenvorschlag,
Zusammenzug zur Halbjahresnote) und eine Dashboard-Kachel für offene
Entschuldigungen. Außerdem: verbliebene englische Begriffe in Auswahlfeldern
und Buttons auf Deutsch umgestellt.
This commit is contained in:
2026-08-12 19:19:22 +02:00
parent a1e722ace1
commit febcb0855a
34 changed files with 2503 additions and 39 deletions
@@ -0,0 +1,254 @@
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using LehrerApp.Core.Interfaces;
using LehrerApp.Core.Models;
using LehrerApp.Core.Services;
using System.Collections.ObjectModel;
using System.Globalization;
using System.Text;
namespace LehrerApp.Desktop.ViewModels.Groups;
// ── Zeugnisnote (2.4) ─────────────────────────────────────────────────────────
public partial class ReportGradeDialogViewModel : ObservableObject
{
private readonly IGradeRepository _grades;
private readonly IExamRepository _exams;
private readonly IExamResultRepository _results;
private readonly IStudentRepository _students;
private readonly IGroupMembershipRepository _memberships;
private readonly IGradingSchemeRepository _schemes;
private readonly IReportGradeRepository _reportGrades;
private readonly GradingService _grading;
private readonly Guid _groupId;
private readonly GroupType _groupType;
private readonly GradingSystem _gradingSystem;
private readonly string _groupLabel;
[ObservableProperty] private ParticipationPeriodOption _selectedPeriod;
[ObservableProperty] private RoundingRule _roundingRule = RoundingRule.Commercial;
[ObservableProperty] private string _schemeSummary = "";
public string GroupLabel => _groupLabel;
public List<ParticipationPeriodOption> PeriodOptions { get; } =
[
new(ParticipationPeriod.FullYear, "Gesamtes Schuljahr"),
new(ParticipationPeriod.H1, "1. Halbjahr"),
new(ParticipationPeriod.H2, "2. Halbjahr"),
];
public string[] RoundingOptions { get; } = RoundingRuleDisplay.Options;
// Für die ComboBox: deutsche Anzeige statt des rohen Enum-Namens.
public string RoundingRuleName
{
get => RoundingRuleDisplay.Label(RoundingRule);
set => RoundingRule = RoundingRuleDisplay.FromLabel(value);
}
public ObservableCollection<ReportGradeRow> Rows { get; } = [];
public ReportGradeDialogViewModel(IGradeRepository grades, IExamRepository exams,
IExamResultRepository results, IStudentRepository students, IGroupMembershipRepository memberships,
IGradingSchemeRepository schemes, IReportGradeRepository reportGrades, GradingService grading,
Guid groupId, GroupType groupType, GradingSystem gradingSystem, string groupLabel)
{
_grades = grades; _exams = exams; _results = results; _students = students;
_memberships = memberships; _schemes = schemes; _reportGrades = reportGrades; _grading = grading;
_groupId = groupId; _groupType = groupType; _gradingSystem = gradingSystem; _groupLabel = groupLabel;
_selectedPeriod = PeriodOptions[0];
Recompute();
}
partial void OnSelectedPeriodChanged(ParticipationPeriodOption value) => Recompute();
partial void OnRoundingRuleChanged(RoundingRule value) => Recompute();
private GradingScheme ResolveScheme() =>
_schemes.GetByGroup(_groupId)
?? _schemes.GetDefaultForType(_groupType)
?? new GradingScheme { ExamsPercent = 50, ParticipationPercent = 40, OtherPercent = 10 };
private void Recompute()
{
var scheme = ResolveScheme();
SchemeSummary = $"Klausuren {scheme.ExamsPercent:0.#} % · Mitarbeit {scheme.ParticipationPercent:0.#} % · " +
$"Sonstige {scheme.OtherPercent:0.#} %";
var period = SelectedPeriod.Period;
var periodTag = SelectedPeriod.Label;
var students = _students.GetByGroup(_groupId);
var membershipsByStudent = _memberships.GetByGroup(_groupId).ToDictionary(m => m.StudentId);
var exams = _exams.GetByGroup(_groupId).Where(e => InPeriod(e.Date, period)).ToList();
var resultsByExam = exams.ToDictionary(e => e.Id, e => _results.GetByExam(e.Id).ToDictionary(r => r.StudentId));
var allGrades = _grades.GetByGroup(_groupId).Where(g => InPeriod(g.Date, period)).ToList();
Rows.Clear();
foreach (var student in students.OrderBy(s => s.LastName).ThenBy(s => s.FirstName))
{
membershipsByStudent.TryGetValue(student.Id, out var membership);
if (!StudentActiveInPeriod(membership, period)) continue;
var existing = _reportGrades.GetByStudentGroupPeriod(student.Id, _groupId, periodTag);
if (existing is { IsLocked: true })
{
Rows.Add(ReportGradeRow.FromLocked(student.Id, student.FullName, existing, Save, ToggleLock));
continue;
}
var examGrades = new List<(string Grade, double Weight)>();
foreach (var exam in exams)
{
if (exam.Niveau.HasValue && membership?.Niveau != exam.Niveau) continue;
if (!resultsByExam[exam.Id].TryGetValue(student.Id, out var result)) continue;
if (result.Absent || result.Grade is null) continue;
examGrades.Add((result.Grade, 1.0));
}
var participationGrades = allGrades
.Where(g => g.StudentId == student.Id && g.Category == GradeCategory.Participation)
.Select(g => (g.Value, g.Weight)).ToList();
var otherGrades = allGrades
.Where(g => g.StudentId == student.Id && g.Category != GradeCategory.Participation)
.Select(g => (g.Value, g.Weight)).ToList();
var calculated = _grading.CalculateReportGrade(examGrades, participationGrades, otherGrades,
scheme, _gradingSystem, RoundingRule);
Rows.Add(ReportGradeRow.FromCalculated(student.Id, student.FullName, calculated, existing, Save, ToggleLock));
}
}
private void Save(ReportGradeRow row)
{
if (!string.IsNullOrWhiteSpace(row.OverrideValue) && string.IsNullOrWhiteSpace(row.OverrideReason))
{
row.ValidationMessage = "Für ein manuelles Übersteuern ist eine Begründung Pflicht.";
return;
}
row.ValidationMessage = "";
var record = _reportGrades.GetByStudentGroupPeriod(row.StudentId, _groupId, SelectedPeriod.Label)
?? new ReportGrade { StudentId = row.StudentId, GroupId = _groupId, Period = SelectedPeriod.Label };
record.CalculatedValue = row.CalculatedValue ?? "";
record.OverrideValue = string.IsNullOrWhiteSpace(row.OverrideValue) ? null : row.OverrideValue.Trim();
record.OverrideReason = string.IsNullOrWhiteSpace(row.OverrideReason) ? null : row.OverrideReason.Trim();
_reportGrades.Save(record);
row.MarkSaved();
}
private void ToggleLock(ReportGradeRow row)
{
var record = _reportGrades.GetByStudentGroupPeriod(row.StudentId, _groupId, SelectedPeriod.Label);
if (record is null)
{
if (!row.IsLocked)
{
// Festschreiben ohne vorherigen Save: aktuellen Stand zuerst sichern.
Save(row);
record = _reportGrades.GetByStudentGroupPeriod(row.StudentId, _groupId, SelectedPeriod.Label);
if (record is null) return;
}
else return;
}
record.IsLocked = !record.IsLocked;
_reportGrades.Save(record);
Recompute();
}
public string ExportCsv()
{
var sb = new StringBuilder();
sb.AppendLine($"Zeugnisnoten;{_groupLabel};{SelectedPeriod.Label}");
sb.AppendLine("Schüler;Berechnet;Übersteuert;Begründung;Endnote;Gesperrt");
foreach (var r in Rows)
sb.AppendLine($"{r.Name};{r.CalculatedValue};{r.OverrideValue};{r.OverrideReason};{r.FinalDisplay};{(r.IsLocked ? "ja" : "")}");
return sb.ToString();
}
private static bool InPeriod(DateOnly date, ParticipationPeriod period) => period switch
{
ParticipationPeriod.H1 => date.Month >= 8 || date.Month <= 1,
ParticipationPeriod.H2 => date.Month >= 2 && date.Month <= 7,
_ => true,
};
private static bool StudentActiveInPeriod(GroupMembership? m, ParticipationPeriod period)
{
if (period == ParticipationPeriod.FullYear || m is null) return true;
return m.Period switch
{
MembershipPeriod.H1Only => period == ParticipationPeriod.H1,
MembershipPeriod.H2Only => period == ParticipationPeriod.H2,
_ => true,
};
}
}
// ── Rundungsregel-Anzeige ─────────────────────────────────────────────────────
public static class RoundingRuleDisplay
{
public static string Label(RoundingRule r) => r switch
{
RoundingRule.Commercial => "Kaufmännisch",
RoundingRule.Pedagogical => "Pädagogisch",
_ => r.ToString(),
};
public static string[] Options { get; } = [Label(RoundingRule.Commercial), Label(RoundingRule.Pedagogical)];
public static RoundingRule FromLabel(string? label) =>
label == Label(RoundingRule.Pedagogical) ? RoundingRule.Pedagogical : RoundingRule.Commercial;
}
// ── Zeile: Zeugnisnote eines Schülers ────────────────────────────────────────
public partial class ReportGradeRow : ObservableObject
{
public Guid StudentId { get; }
public string Name { get; }
public string? CalculatedValue { get; private set; }
public bool IsLocked { get; private set; }
[ObservableProperty] private string? _overrideValue;
[ObservableProperty] private string? _overrideReason;
[ObservableProperty] private string _validationMessage = "";
public string CalculatedDisplay => CalculatedValue ?? "";
public string FinalDisplay => !string.IsNullOrWhiteSpace(OverrideValue) ? OverrideValue! : CalculatedDisplay;
public string LockLabel => IsLocked ? "Entsperren" : "Festschreiben";
public IRelayCommand SaveCommand { get; }
public IRelayCommand ToggleLockCommand { get; }
private ReportGradeRow(Guid studentId, string name, string? calculated, ReportGrade? existing,
bool locked, Action<ReportGradeRow> onSave, Action<ReportGradeRow> onToggleLock)
{
StudentId = studentId;
Name = name;
CalculatedValue = calculated;
IsLocked = locked;
_overrideValue = existing?.OverrideValue;
_overrideReason = existing?.OverrideReason;
SaveCommand = new RelayCommand(() => onSave(this));
ToggleLockCommand = new RelayCommand(() => onToggleLock(this));
}
public static ReportGradeRow FromCalculated(Guid studentId, string name, string? calculated,
ReportGrade? existing, Action<ReportGradeRow> onSave, Action<ReportGradeRow> onToggleLock) =>
new(studentId, name, calculated, existing, existing?.IsLocked ?? false, onSave, onToggleLock);
public static ReportGradeRow FromLocked(Guid studentId, string name, ReportGrade locked,
Action<ReportGradeRow> onSave, Action<ReportGradeRow> onToggleLock) =>
new(studentId, name, locked.CalculatedValue, locked, true, onSave, onToggleLock);
public void MarkSaved()
{
OnPropertyChanged(nameof(FinalDisplay));
}
partial void OnOverrideValueChanged(string? value) => OnPropertyChanged(nameof(FinalDisplay));
}