Files
LehrerApp/LehrerApp.Desktop/ViewModels/Settings/SettingsViewModel.cs
T
adminandClaude Sonnet 5 d987b93315 Schülerdokumentation: Einträge, Fehlzeitenbilanz, Datenschutz (Kapitel 5)
Dokumentationseinträge mit Typwahl (Gespräch, Vorkommnis, Förderplan,
Fehlzeit, Elternanruf, Elternbrief), vertrauliche Einträge nur nach
Bestätigung sichtbar, weiche Löschung mit Nachvollziehbarkeit. Fehlzeiten
als Auswertung des bestehenden Anwesenheits-Trackings statt zweiter
Erfassung, mit Schwellenwert-Warnung im Schülerdetail und Dashboard.
Förderplan-Wiedervorlage als Dashboard-Karte. Datenschutz: Löschfristen
mit manueller Bereinigung und DSGVO-Art.-15-Datenauskunft als Export.

Auf Nutzer-Feedback hin ergänzt: Elternanruf mit begleitendem
Gesprächsprotokoll-Dialog (Punkte abhaken, Eindrücke festhalten),
Elternbrief mit Versand-/Rückmeldungs-Tracking, Datei-Anhänge über
LiteDBs Dateispeicher, frei vergebbare Labels zur Nachverfolgung mit
Dringlichkeits-Farbcodierung, sowie eine sichtbare Farblegende für das
bestehende Notenentwicklungs-Diagramm. Dabei einen Absturz behoben:
leere Textfelder lieferten über das Binding null statt "", was beim
Speichern eine NullReferenceException auslöste.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-13 17:49:03 +02:00

741 lines
29 KiB
C#
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using LehrerApp.Core.Interfaces;
using LehrerApp.Core.Models;
using LehrerApp.Core.Services;
using LehrerApp.Data;
using System.Collections.ObjectModel;
using System.Text.Json;
using System.Text.Json.Serialization;
namespace LehrerApp.Desktop.ViewModels.Settings;
// ── Haupt-ViewModel ───────────────────────────────────────────────────────────
public partial class SettingsViewModel : ObservableObject
{
private readonly ISubjectRepository _subjects;
private readonly ICompetencyDomainRepository _domainRepo;
private readonly IGradingKeyTemplateRepository _gradingKeyTemplates;
private readonly IGradingSchemeRepository _gradingSchemes;
private readonly GradingService _grading;
private readonly BackupService _backups;
private readonly DatabaseEncryptionService _dbEncryption;
private readonly AppLockService _appLock;
private readonly LiteDbContext _dbContext;
private readonly PrivacySettingsService _privacy;
private readonly IDocumentationRepository _documentation;
private readonly IStudentRepository _students;
// ── Fächer ────────────────────────────────────────────────────────────────
[ObservableProperty] private string _newName = "";
[ObservableProperty] private string _newShort = "";
[ObservableProperty] private string _newNameError = "";
public ObservableCollection<SubjectListItem> Subjects { get; } = [];
// ── Kompetenzkatalog ──────────────────────────────────────────────────────
[ObservableProperty] private SubjectListItem? _catalogSubject;
[ObservableProperty] private int _catalogGradeLevel = 10;
[ObservableProperty] private string _newDomainName = "";
[ObservableProperty] private string _newDomainCode = "";
[ObservableProperty] private string _catalogValidation = "";
public ObservableCollection<DomainEditItem> Domains { get; } = [];
// ── Notenschlüssel-Vorlagen (1.3.2) ──────────────────────────────────────
[ObservableProperty] private string _newTemplateName = "";
[ObservableProperty] private string _newTemplateGradingSystemName = "Noten 16";
[ObservableProperty] private string _newTemplateNameError = "";
public List<string> GradingSystemOptions { get; } = ["Noten 16", "Punkte 015"];
public ObservableCollection<GradingKeyTemplateEditItem> GradingKeyTemplateList { get; } = [];
// ── Gewichtungsschema-Voreinstellungen (2.3.3) ───────────────────────────
[ObservableProperty] private GradingSchemeEditItem _classScheme = null!;
[ObservableProperty] private GradingSchemeEditItem _courseScheme = null!;
// ── Sicherheit: Datensicherung (13.3.1/13.3.2) ───────────────────────────
[ObservableProperty] private string _backupStatus = "";
public ObservableCollection<BackupListItem> Backups { get; } = [];
/// Vom Code-Behind gesetzt: zeigt einen Bestätigungsdialog vor dem Wiederherstellen.
public Func<BackupListItem, Task<bool>>? OnConfirmRestore { get; set; }
// ── Sicherheit: Datenbank-Verschlüsselung (13.3.4) ───────────────────────
[ObservableProperty] private bool _isDbEncrypted;
[ObservableProperty] private string _currentDbPassword = "";
[ObservableProperty] private string _newDbPassword = "";
[ObservableProperty] private string _newDbPasswordConfirm = "";
[ObservableProperty] private string _dbPasswordError = "";
public string DbEncryptionStatusLabel => IsDbEncrypted ? "verschlüsselt" : "nicht verschlüsselt";
partial void OnIsDbEncryptedChanged(bool value) => OnPropertyChanged(nameof(DbEncryptionStatusLabel));
// ── Sicherheit: App-Sperre nach Inaktivität (13.3.5) ─────────────────────
[ObservableProperty] private bool _appLockEnabled;
[ObservableProperty] private int _appLockTimeoutMinutes = 10;
[ObservableProperty] private string _appLockNewPassword = "";
[ObservableProperty] private string _appLockNewPasswordConfirm = "";
[ObservableProperty] private string _appLockPasswordError = "";
[ObservableProperty] private string _appLockStatus = "";
public bool AppLockHasPassword => _appLock.HasPassword;
/// Vom Code-Behind gesetzt: aktualisiert den laufenden Inaktivitäts-Timer sofort,
/// ohne dass die App neu gestartet werden muss.
public Action? OnAppLockChanged { get; set; }
// ── Datenschutz: Löschfristen (5.4.2) ────────────────────────────────────
[ObservableProperty] private int _retentionYears = 3;
[ObservableProperty] private string _retentionStatus = "";
public ObservableCollection<ExpiredDocumentItem> ExpiredDocuments { get; } = [];
/// Vom Code-Behind gesetzt: zeigt einen Bestätigungsdialog vor dem endgültigen Löschen.
public Func<ExpiredDocumentItem, Task<bool>>? OnConfirmHardDelete { get; set; }
// ── Konstruktor ───────────────────────────────────────────────────────────
public SettingsViewModel(ISubjectRepository subjects, ICompetencyDomainRepository domainRepo,
IGradingKeyTemplateRepository gradingKeyTemplates, IGradingSchemeRepository gradingSchemes,
GradingService grading, BackupService backups, DatabaseEncryptionService dbEncryption,
AppLockService appLock, LiteDbContext dbContext, PrivacySettingsService privacy,
IDocumentationRepository documentation, IStudentRepository students)
{
_subjects = subjects;
_domainRepo = domainRepo;
_gradingKeyTemplates = gradingKeyTemplates;
_gradingSchemes = gradingSchemes;
_grading = grading;
_backups = backups;
_dbEncryption = dbEncryption;
_appLock = appLock;
_dbContext = dbContext;
_privacy = privacy;
_documentation = documentation;
_students = students;
LoadSubjects();
LoadGradingKeyTemplates();
LoadGradingSchemes();
LoadBackups();
IsDbEncrypted = _dbEncryption.IsEncrypted(AppBootstrapper.DbPath);
AppLockEnabled = _appLock.IsEnabled;
AppLockTimeoutMinutes = _appLock.TimeoutMinutes;
RetentionYears = _privacy.RetentionYears;
LoadExpiredDocuments();
}
// ── Datenschutz: Löschfristen ─────────────────────────────────────────────
private void LoadExpiredDocuments()
{
ExpiredDocuments.Clear();
var cutoff = _privacy.RetentionCutoff();
foreach (var d in _documentation.GetAll().Where(d => d.CreatedAt < cutoff))
{
var student = _students.GetById(d.StudentId);
ExpiredDocuments.Add(new ExpiredDocumentItem(d, student?.FullName ?? "?"));
}
}
[RelayCommand]
private void SaveRetentionYears()
{
_privacy.SetRetentionYears(RetentionYears);
LoadExpiredDocuments();
RetentionStatus = "Gespeichert.";
}
[RelayCommand]
private async Task HardDeleteDocument(ExpiredDocumentItem? item)
{
if (item is null) return;
if (OnConfirmHardDelete is not null && !await OnConfirmHardDelete(item)) return;
_documentation.HardDelete(item.Id);
ExpiredDocuments.Remove(item);
}
// ── Datensicherung: Laden / Erstellen / Wiederherstellen ─────────────────
private void LoadBackups()
{
Backups.Clear();
foreach (var b in _backups.ListBackups()) Backups.Add(new BackupListItem(b));
}
[RelayCommand]
private void CreateBackupNow()
{
_backups.CreateBackup(AppBootstrapper.DbPath);
LoadBackups();
BackupStatus = "Backup erstellt.";
}
[RelayCommand]
private async Task RestoreBackup(BackupListItem? item)
{
if (item is null) return;
if (OnConfirmRestore is not null && !await OnConfirmRestore(item)) return;
_dbContext.Dispose();
_backups.RestoreBackup(item.Path, AppBootstrapper.DbPath);
AppBootstrapper.RestartApplication();
}
// ── Datenbank-Verschlüsselung: Setzen / Ändern / Entfernen ───────────────
[RelayCommand]
private void SaveDbPassword()
{
DbPasswordError = "";
var valid = true;
var wantsPassword = !string.IsNullOrWhiteSpace(NewDbPassword) || !string.IsNullOrWhiteSpace(NewDbPasswordConfirm);
if (IsDbEncrypted && !_dbEncryption.VerifyPassword(AppBootstrapper.DbPath, CurrentDbPassword))
{
DbPasswordError = "Aktuelles Passwort ist falsch.";
valid = false;
}
if (!wantsPassword)
{
DbPasswordError = "Bitte ein neues Passwort eingeben.";
valid = false;
}
else if (NewDbPassword != NewDbPasswordConfirm)
{
DbPasswordError = "Neue Passwörter stimmen nicht überein.";
valid = false;
}
else if (NewDbPassword.Length < 4)
{
DbPasswordError = "Mindestens 4 Zeichen.";
valid = false;
}
if (!valid) return;
_dbContext.Dispose();
_dbEncryption.SetPassword(AppBootstrapper.DbPath, IsDbEncrypted ? CurrentDbPassword : null, NewDbPassword.Trim());
AppBootstrapper.RestartApplication();
}
[RelayCommand]
private void RemoveDbPassword()
{
DbPasswordError = "";
if (!_dbEncryption.VerifyPassword(AppBootstrapper.DbPath, CurrentDbPassword))
{
DbPasswordError = "Aktuelles Passwort ist falsch.";
return;
}
_dbContext.Dispose();
_dbEncryption.SetPassword(AppBootstrapper.DbPath, CurrentDbPassword, null);
AppBootstrapper.RestartApplication();
}
// ── App-Sperre: Speichern ─────────────────────────────────────────────────
[RelayCommand]
private void SaveAppLockSettings()
{
AppLockPasswordError = "";
var valid = true;
var wantsNewPassword = !string.IsNullOrWhiteSpace(AppLockNewPassword) || !string.IsNullOrWhiteSpace(AppLockNewPasswordConfirm);
if (AppLockEnabled && !_appLock.HasPassword && !wantsNewPassword)
{
AppLockPasswordError = "Bitte ein Passwort für die App-Sperre festlegen.";
valid = false;
}
else if (wantsNewPassword)
{
if (AppLockNewPassword != AppLockNewPasswordConfirm)
{
AppLockPasswordError = "Passwörter stimmen nicht überein.";
valid = false;
}
else if (AppLockNewPassword.Length < 4)
{
AppLockPasswordError = "Mindestens 4 Zeichen.";
valid = false;
}
}
if (!valid) return;
if (wantsNewPassword) _appLock.SetPassword(AppLockNewPassword.Trim());
_appLock.Configure(AppLockEnabled, AppLockTimeoutMinutes);
AppLockNewPassword = ""; AppLockNewPasswordConfirm = "";
OnPropertyChanged(nameof(AppLockHasPassword));
AppLockStatus = "Gespeichert.";
OnAppLockChanged?.Invoke();
}
// ── Gewichtungsschema-Voreinstellungen: Laden ────────────────────────────
private void LoadGradingSchemes()
{
ClassScheme = new GradingSchemeEditItem(
_gradingSchemes.GetDefaultForType(GroupType.Class)
?? new GradingScheme { GroupType = GroupType.Class, ExamsPercent = 50, ParticipationPercent = 40, OtherPercent = 10 },
"Klassen", _gradingSchemes, _grading);
CourseScheme = new GradingSchemeEditItem(
_gradingSchemes.GetDefaultForType(GroupType.Course)
?? new GradingScheme { GroupType = GroupType.Course, ExamsPercent = 60, ParticipationPercent = 30, OtherPercent = 10 },
"Kurse", _gradingSchemes, _grading);
}
// ── Notenschlüssel-Vorlagen: Laden / Hinzufügen / Löschen ────────────────
private void LoadGradingKeyTemplates()
{
GradingKeyTemplateList.Clear();
foreach (var t in _gradingKeyTemplates.GetAll())
GradingKeyTemplateList.Add(new GradingKeyTemplateEditItem(t, _gradingKeyTemplates, _grading));
}
[RelayCommand]
private void AddGradingKeyTemplate()
{
if (string.IsNullOrWhiteSpace(NewTemplateName)) { NewTemplateNameError = "Vorlagenname erforderlich."; return; }
var system = NewTemplateGradingSystemName == "Punkte 015"
? GradingSystem.Points0To15 : GradingSystem.Grades1To6;
var defaults = system == GradingSystem.Grades1To6
? GradingService.DefaultKey1To6() : GradingService.DefaultKey0To15();
var template = new GradingKeyTemplate
{
Name = NewTemplateName.Trim(),
GradingSystem = system,
Entries = defaults.Select(e => new GradingKeyEntry { Grade = e.Grade, MinPercent = e.MinPercent }).ToList(),
};
_gradingKeyTemplates.Save(template);
GradingKeyTemplateList.Add(new GradingKeyTemplateEditItem(template, _gradingKeyTemplates, _grading));
NewTemplateName = "";
NewTemplateNameError = "";
}
[RelayCommand]
private void DeleteGradingKeyTemplate(GradingKeyTemplateEditItem? item)
{
if (item is null) return;
_gradingKeyTemplates.Delete(item.Id);
GradingKeyTemplateList.Remove(item);
}
// ── Fächer: Laden / Hinzufügen / Löschen ─────────────────────────────────
public void LoadSubjects()
{
Subjects.Clear();
foreach (var s in _subjects.GetAll())
Subjects.Add(new SubjectListItem(s));
}
[RelayCommand]
private void AddSubject()
{
if (string.IsNullOrWhiteSpace(NewName)) { NewNameError = "Name erforderlich."; return; }
try
{
_subjects.Save(new Subject { Name = NewName.Trim(), ShortName = NewShort.Trim() });
}
catch (InvalidOperationException ex)
{
NewNameError = ex.Message;
return;
}
NewName = ""; NewShort = ""; NewNameError = "";
LoadSubjects();
}
[RelayCommand]
private void DeleteSubject(SubjectListItem? item)
{
if (item is null) return;
try
{
_subjects.Delete(item.Id);
}
catch (InvalidOperationException ex)
{
NewNameError = ex.Message;
return;
}
NewNameError = "";
if (CatalogSubject?.Id == item.Id) CatalogSubject = null;
LoadSubjects();
}
// ── Katalog: Laden ────────────────────────────────────────────────────────
partial void OnCatalogSubjectChanged(SubjectListItem? value) => LoadCatalog();
partial void OnCatalogGradeLevelChanged(int value) => LoadCatalog();
private void LoadCatalog()
{
Domains.Clear();
CatalogValidation = "";
if (CatalogSubject is null) return;
foreach (var d in _domainRepo.GetBySubjectAndGrade(CatalogSubject.Id, CatalogGradeLevel))
Domains.Add(new DomainEditItem(d, _domainRepo));
}
// ── Katalog: Bereich hinzufügen / löschen ────────────────────────────────
[RelayCommand]
private void AddDomain()
{
if (CatalogSubject is null) { CatalogValidation = "Bitte zuerst ein Fach auswählen."; return; }
if (string.IsNullOrWhiteSpace(NewDomainName)) { CatalogValidation = "Bereichsname erforderlich."; return; }
var domain = new CompetencyDomain
{
SubjectId = CatalogSubject.Id,
GradeLevel = CatalogGradeLevel,
Name = NewDomainName.Trim(),
Code = NewDomainCode.Trim(),
SortOrder = Domains.Count,
};
_domainRepo.Save(domain);
Domains.Add(new DomainEditItem(domain, _domainRepo));
NewDomainName = ""; NewDomainCode = ""; CatalogValidation = "";
}
[RelayCommand]
private void DeleteDomain(DomainEditItem? item)
{
if (item is null) return;
_domainRepo.Delete(item.Id);
Domains.Remove(item);
}
// ── JSON Import / Export ──────────────────────────────────────────────────
public void ImportCatalog(string json)
{
if (CatalogSubject is null) { CatalogValidation = "Bitte zuerst ein Fach auswählen."; return; }
try
{
var opts = new JsonSerializerOptions { PropertyNameCaseInsensitive = true };
var dto = JsonSerializer.Deserialize<CatalogDto>(json, opts);
if (dto?.Domains is null) { CatalogValidation = "Ungültiges JSON-Format."; return; }
_domainRepo.DeleteBySubjectAndGrade(CatalogSubject.Id, CatalogGradeLevel);
for (int i = 0; i < dto.Domains.Count; i++)
{
var d = dto.Domains[i];
var domain = new CompetencyDomain
{
SubjectId = CatalogSubject.Id,
GradeLevel = CatalogGradeLevel,
Name = d.Name ?? "",
Code = d.Code ?? "",
SortOrder = i,
Items = (d.Competencies ?? [])
.Select((c, j) => new CompetencyItem
{
Code = c.Code ?? "",
Description = c.Description ?? "",
SortOrder = j,
}).ToList(),
};
_domainRepo.Save(domain);
}
CatalogValidation = "";
LoadCatalog();
}
catch
{
CatalogValidation = "Import fehlgeschlagen bitte JSON-Format prüfen.";
}
}
public string ExportCatalog()
{
var dto = new CatalogDto
{
Subject = CatalogSubject?.Name ?? "",
GradeLevel = CatalogGradeLevel,
Domains = Domains.Select(d => new DomainDto
{
Name = d.Name,
Code = d.Code,
Competencies = d.Items.Select(i => new CompetencyDto
{
Code = i.Code,
Description = i.Description,
}).ToList(),
}).ToList(),
};
return JsonSerializer.Serialize(dto, new JsonSerializerOptions { WriteIndented = true });
}
}
// ── DomainEditItem ────────────────────────────────────────────────────────────
public partial class DomainEditItem : ObservableObject
{
private readonly CompetencyDomain _domain;
private readonly ICompetencyDomainRepository _repo;
public Guid Id { get; }
public string Name { get; }
public string Code { get; }
public string DisplayName { get; }
[ObservableProperty] private string _newItemCode = "";
[ObservableProperty] private string _newItemDesc = "";
public ObservableCollection<CompetencyItemVm> Items { get; } = [];
public DomainEditItem(CompetencyDomain domain, ICompetencyDomainRepository repo)
{
_domain = domain;
_repo = repo;
Id = domain.Id;
Name = domain.Name;
Code = domain.Code;
DisplayName = string.IsNullOrEmpty(domain.Code)
? domain.Name
: $"{domain.Name} ({domain.Code})";
foreach (var item in domain.Items.OrderBy(i => i.SortOrder))
Items.Add(new CompetencyItemVm(item, DeleteItem));
}
[RelayCommand]
private void AddItem()
{
if (string.IsNullOrWhiteSpace(NewItemDesc)) return;
var item = new CompetencyItem
{
Code = NewItemCode.Trim(),
Description = NewItemDesc.Trim(),
SortOrder = _domain.Items.Count,
};
_domain.Items.Add(item);
_repo.Save(_domain);
Items.Add(new CompetencyItemVm(item, DeleteItem));
NewItemCode = ""; NewItemDesc = "";
}
private void DeleteItem(CompetencyItemVm vm)
{
_domain.Items.RemoveAll(i => i.Id == vm.ItemId);
_repo.Save(_domain);
Items.Remove(vm);
}
}
// ── CompetencyItemVm ──────────────────────────────────────────────────────────
public class CompetencyItemVm
{
public Guid ItemId { get; }
public string Code { get; }
public string Description { get; }
public string Display { get; }
public IRelayCommand DeleteCommand { get; }
public CompetencyItemVm(CompetencyItem item, Action<CompetencyItemVm> onDelete)
{
ItemId = item.Id;
Code = item.Code;
Description = item.Description;
Display = string.IsNullOrEmpty(item.Code)
? item.Description
: $"[{item.Code}] {item.Description}";
DeleteCommand = new RelayCommand(() => onDelete(this));
}
}
// ── GradingKeyTemplateEditItem (1.3.2) ─────────────────────────────────────────
public partial class GradingKeyTemplateEditItem : ObservableObject
{
private readonly GradingKeyTemplate _template;
private readonly IGradingKeyTemplateRepository _repo;
private readonly GradingService _grading;
public Guid Id { get; }
public string Name { get; }
public string GradingSystemLabel { get; }
[ObservableProperty] private string _newGrade = "";
[ObservableProperty] private double _newMinPercent;
[ObservableProperty] private string _newGradeError = "";
[ObservableProperty] private string _newMinPercentError = "";
[ObservableProperty] private string _completenessWarning = "";
public ObservableCollection<GradingKeyEntryVm> Entries { get; } = [];
public GradingKeyTemplateEditItem(GradingKeyTemplate template, IGradingKeyTemplateRepository repo,
GradingService grading)
{
_template = template; _repo = repo; _grading = grading;
Id = template.Id;
Name = template.Name;
GradingSystemLabel = template.GradingSystem == GradingSystem.Grades1To6
? "Noten 16" : "Punkte 015";
foreach (var e in template.Entries.OrderByDescending(e => e.MinPercent))
Entries.Add(new GradingKeyEntryVm(e, DeleteEntry));
RecomputeCompleteness();
}
[RelayCommand]
private void AddEntry()
{
NewGradeError = ""; NewMinPercentError = "";
var valid = true;
if (string.IsNullOrWhiteSpace(NewGrade)) { NewGradeError = "Bezeichnung erforderlich."; valid = false; }
if (NewMinPercent is < 0 or > 100) { NewMinPercentError = "Muss zwischen 0 und 100 liegen."; valid = false; }
else if (_template.Entries.Any(e => Math.Abs(e.MinPercent - NewMinPercent) < 0.0001))
{ NewMinPercentError = "Diese Prozentgrenze existiert bereits."; valid = false; }
if (!valid) return;
var entry = new GradingKeyEntry { Grade = NewGrade.Trim(), MinPercent = NewMinPercent };
_template.Entries.Add(entry);
_template.Entries = _template.Entries.OrderByDescending(e => e.MinPercent).ToList();
_repo.Save(_template);
Entries.Clear();
foreach (var e in _template.Entries) Entries.Add(new GradingKeyEntryVm(e, DeleteEntry));
NewGrade = ""; NewMinPercent = 0;
RecomputeCompleteness();
}
private void DeleteEntry(GradingKeyEntryVm vm)
{
_template.Entries.RemoveAll(e => e.Grade == vm.Grade && Math.Abs(e.MinPercent - vm.MinPercent) < 0.0001);
_repo.Save(_template);
Entries.Remove(vm);
RecomputeCompleteness();
}
private void RecomputeCompleteness() =>
CompletenessWarning = _grading.ValidateGradingKey(_template.Entries) ?? "";
}
// ── GradingKeyEntryVm ─────────────────────────────────────────────────────────
public class GradingKeyEntryVm
{
public string Grade { get; }
public double MinPercent { get; }
public string Display { get; }
public IRelayCommand DeleteCommand { get; }
public GradingKeyEntryVm(GradingKeyEntry e, Action<GradingKeyEntryVm> onDelete)
{
Grade = e.Grade;
MinPercent = e.MinPercent;
Display = $"{Grade} — ab {MinPercent.ToString("0.##")} %";
DeleteCommand = new RelayCommand(() => onDelete(this));
}
}
// ── GradingSchemeEditItem (2.3) ────────────────────────────────────────────────
public partial class GradingSchemeEditItem : ObservableObject
{
private readonly GradingScheme _scheme;
private readonly IGradingSchemeRepository _repo;
private readonly GradingService _grading;
public string Label { get; }
[ObservableProperty] private double _examsPercent;
[ObservableProperty] private double _participationPercent;
[ObservableProperty] private double _otherPercent;
[ObservableProperty] private string _validationMessage = "";
[ObservableProperty] private string _statusMessage = "";
public GradingSchemeEditItem(GradingScheme scheme, string label, IGradingSchemeRepository repo, GradingService grading)
{
_scheme = scheme; _repo = repo; _grading = grading;
Label = label;
_examsPercent = scheme.ExamsPercent;
_participationPercent = scheme.ParticipationPercent;
_otherPercent = scheme.OtherPercent;
}
[RelayCommand]
private void Save()
{
_scheme.ExamsPercent = ExamsPercent;
_scheme.ParticipationPercent = ParticipationPercent;
_scheme.OtherPercent = OtherPercent;
var error = _grading.ValidateGradingScheme(_scheme);
if (error is not null) { ValidationMessage = error; StatusMessage = ""; return; }
ValidationMessage = "";
_repo.Save(_scheme);
StatusMessage = "Gespeichert.";
}
}
// ── Hilfklassen ───────────────────────────────────────────────────────────────
public class SubjectListItem(Subject s)
{
public Guid Id { get; } = s.Id;
public string Name { get; } = s.Name;
public string ShortName { get; } = s.ShortName;
}
public class BackupListItem(BackupInfo info)
{
public string Path { get; } = info.Path;
public string Display { get; } = $"{info.CreatedAt:dd.MM.yyyy HH:mm} · {info.SizeBytes / 1024.0:0} KB";
}
public class ExpiredDocumentItem(Documentation d, string studentName)
{
public Guid Id { get; } = d.Id;
public string StudentName { get; } = studentName;
public string Title { get; } = d.Title;
public string CreatedAtDisplay { get; } = d.CreatedAt.ToLocalTime().ToString("dd.MM.yyyy");
}
// ── JSON DTOs ─────────────────────────────────────────────────────────────────
internal class CatalogDto
{
[JsonPropertyName("subject")] public string? Subject { get; set; }
[JsonPropertyName("gradeLevel")] public int GradeLevel { get; set; }
[JsonPropertyName("domains")] public List<DomainDto>? Domains { get; set; }
}
internal class DomainDto
{
[JsonPropertyName("name")] public string? Name { get; set; }
[JsonPropertyName("code")] public string? Code { get; set; }
[JsonPropertyName("competencies")] public List<CompetencyDto>? Competencies { get; set; }
}
internal class CompetencyDto
{
[JsonPropertyName("code")] public string? Code { get; set; }
[JsonPropertyName("description")] public string? Description { get; set; }
}