286 lines
11 KiB
C#
286 lines
11 KiB
C#
using CommunityToolkit.Mvvm.ComponentModel;
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using CommunityToolkit.Mvvm.Input;
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using LehrerApp.Core.Interfaces;
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using LehrerApp.Core.Models;
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using System.Collections.ObjectModel;
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using System.Text.Json;
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using System.Text.Json.Serialization;
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namespace LehrerApp.Desktop.ViewModels.Settings;
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// ── Haupt-ViewModel ───────────────────────────────────────────────────────────
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public partial class SettingsViewModel : ObservableObject
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{
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private readonly ISubjectRepository _subjects;
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private readonly ICompetencyDomainRepository _domainRepo;
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// ── Fächer ────────────────────────────────────────────────────────────────
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[ObservableProperty] private string _newName = "";
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[ObservableProperty] private string _newShort = "";
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[ObservableProperty] private string _validationMessage = "";
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public ObservableCollection<SubjectListItem> Subjects { get; } = [];
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// ── Kompetenzkatalog ──────────────────────────────────────────────────────
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[ObservableProperty] private SubjectListItem? _catalogSubject;
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[ObservableProperty] private int _catalogGradeLevel = 10;
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[ObservableProperty] private string _newDomainName = "";
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[ObservableProperty] private string _newDomainCode = "";
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[ObservableProperty] private string _catalogValidation = "";
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public ObservableCollection<DomainEditItem> Domains { get; } = [];
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// ── Konstruktor ───────────────────────────────────────────────────────────
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public SettingsViewModel(ISubjectRepository subjects, ICompetencyDomainRepository domainRepo)
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{
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_subjects = subjects;
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_domainRepo = domainRepo;
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LoadSubjects();
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}
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// ── Fächer: Laden / Hinzufügen / Löschen ─────────────────────────────────
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public void LoadSubjects()
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{
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Subjects.Clear();
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foreach (var s in _subjects.GetAll())
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Subjects.Add(new SubjectListItem(s));
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}
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[RelayCommand]
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private void AddSubject()
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{
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if (string.IsNullOrWhiteSpace(NewName)) { ValidationMessage = "Name erforderlich."; return; }
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_subjects.Save(new Subject { Name = NewName.Trim(), ShortName = NewShort.Trim() });
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NewName = ""; NewShort = ""; ValidationMessage = "";
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LoadSubjects();
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}
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[RelayCommand]
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private void DeleteSubject(SubjectListItem? item)
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{
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if (item is null) return;
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_subjects.Delete(item.Id);
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if (CatalogSubject?.Id == item.Id) CatalogSubject = null;
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LoadSubjects();
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}
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// ── Katalog: Laden ────────────────────────────────────────────────────────
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partial void OnCatalogSubjectChanged(SubjectListItem? value) => LoadCatalog();
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partial void OnCatalogGradeLevelChanged(int value) => LoadCatalog();
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private void LoadCatalog()
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{
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Domains.Clear();
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CatalogValidation = "";
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if (CatalogSubject is null) return;
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foreach (var d in _domainRepo.GetBySubjectAndGrade(CatalogSubject.Id, CatalogGradeLevel))
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Domains.Add(new DomainEditItem(d, _domainRepo));
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}
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// ── Katalog: Bereich hinzufügen / löschen ────────────────────────────────
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[RelayCommand]
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private void AddDomain()
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{
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if (CatalogSubject is null) { CatalogValidation = "Bitte zuerst ein Fach auswählen."; return; }
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if (string.IsNullOrWhiteSpace(NewDomainName)) { CatalogValidation = "Bereichsname erforderlich."; return; }
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var domain = new CompetencyDomain
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{
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SubjectId = CatalogSubject.Id,
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GradeLevel = CatalogGradeLevel,
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Name = NewDomainName.Trim(),
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Code = NewDomainCode.Trim(),
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SortOrder = Domains.Count,
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};
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_domainRepo.Save(domain);
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Domains.Add(new DomainEditItem(domain, _domainRepo));
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NewDomainName = ""; NewDomainCode = ""; CatalogValidation = "";
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}
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[RelayCommand]
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private void DeleteDomain(DomainEditItem? item)
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{
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if (item is null) return;
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_domainRepo.Delete(item.Id);
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Domains.Remove(item);
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}
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// ── JSON Import / Export ──────────────────────────────────────────────────
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public void ImportCatalog(string json)
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{
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if (CatalogSubject is null) { CatalogValidation = "Bitte zuerst ein Fach auswählen."; return; }
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try
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{
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var opts = new JsonSerializerOptions { PropertyNameCaseInsensitive = true };
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var dto = JsonSerializer.Deserialize<CatalogDto>(json, opts);
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if (dto?.Domains is null) { CatalogValidation = "Ungültiges JSON-Format."; return; }
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_domainRepo.DeleteBySubjectAndGrade(CatalogSubject.Id, CatalogGradeLevel);
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for (int i = 0; i < dto.Domains.Count; i++)
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{
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var d = dto.Domains[i];
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var domain = new CompetencyDomain
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{
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SubjectId = CatalogSubject.Id,
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GradeLevel = CatalogGradeLevel,
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Name = d.Name ?? "",
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Code = d.Code ?? "",
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SortOrder = i,
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Items = (d.Competencies ?? [])
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.Select((c, j) => new CompetencyItem
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{
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Code = c.Code ?? "",
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Description = c.Description ?? "",
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SortOrder = j,
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}).ToList(),
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};
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_domainRepo.Save(domain);
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}
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CatalogValidation = "";
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LoadCatalog();
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}
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catch
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{
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CatalogValidation = "Import fehlgeschlagen – bitte JSON-Format prüfen.";
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}
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}
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public string ExportCatalog()
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{
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var dto = new CatalogDto
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{
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Subject = CatalogSubject?.Name ?? "",
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GradeLevel = CatalogGradeLevel,
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Domains = Domains.Select(d => new DomainDto
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{
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Name = d.Name,
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Code = d.Code,
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Competencies = d.Items.Select(i => new CompetencyDto
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{
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Code = i.Code,
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Description = i.Description,
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}).ToList(),
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}).ToList(),
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};
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return JsonSerializer.Serialize(dto, new JsonSerializerOptions { WriteIndented = true });
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}
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}
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// ── DomainEditItem ────────────────────────────────────────────────────────────
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public partial class DomainEditItem : ObservableObject
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{
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private readonly CompetencyDomain _domain;
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private readonly ICompetencyDomainRepository _repo;
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public Guid Id { get; }
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public string Name { get; }
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public string Code { get; }
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public string DisplayName { get; }
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[ObservableProperty] private string _newItemCode = "";
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[ObservableProperty] private string _newItemDesc = "";
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public ObservableCollection<CompetencyItemVm> Items { get; } = [];
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public DomainEditItem(CompetencyDomain domain, ICompetencyDomainRepository repo)
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{
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_domain = domain;
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_repo = repo;
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Id = domain.Id;
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Name = domain.Name;
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Code = domain.Code;
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DisplayName = string.IsNullOrEmpty(domain.Code)
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? domain.Name
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: $"{domain.Name} ({domain.Code})";
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foreach (var item in domain.Items.OrderBy(i => i.SortOrder))
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Items.Add(new CompetencyItemVm(item, DeleteItem));
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}
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[RelayCommand]
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private void AddItem()
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{
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if (string.IsNullOrWhiteSpace(NewItemDesc)) return;
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var item = new CompetencyItem
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{
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Code = NewItemCode.Trim(),
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Description = NewItemDesc.Trim(),
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SortOrder = _domain.Items.Count,
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};
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_domain.Items.Add(item);
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_repo.Save(_domain);
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Items.Add(new CompetencyItemVm(item, DeleteItem));
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NewItemCode = ""; NewItemDesc = "";
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}
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private void DeleteItem(CompetencyItemVm vm)
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{
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_domain.Items.RemoveAll(i => i.Id == vm.ItemId);
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_repo.Save(_domain);
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Items.Remove(vm);
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}
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}
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// ── CompetencyItemVm ──────────────────────────────────────────────────────────
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public class CompetencyItemVm
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{
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public Guid ItemId { get; }
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public string Code { get; }
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public string Description { get; }
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public string Display { get; }
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public IRelayCommand DeleteCommand { get; }
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public CompetencyItemVm(CompetencyItem item, Action<CompetencyItemVm> onDelete)
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{
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ItemId = item.Id;
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Code = item.Code;
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Description = item.Description;
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Display = string.IsNullOrEmpty(item.Code)
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? item.Description
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: $"[{item.Code}] {item.Description}";
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DeleteCommand = new RelayCommand(() => onDelete(this));
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}
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}
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// ── Hilfklassen ───────────────────────────────────────────────────────────────
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public class SubjectListItem(Subject s)
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{
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public Guid Id { get; } = s.Id;
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public string Name { get; } = s.Name;
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public string ShortName { get; } = s.ShortName;
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}
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// ── JSON DTOs ─────────────────────────────────────────────────────────────────
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internal class CatalogDto
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{
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[JsonPropertyName("subject")] public string? Subject { get; set; }
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[JsonPropertyName("gradeLevel")] public int GradeLevel { get; set; }
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[JsonPropertyName("domains")] public List<DomainDto>? Domains { get; set; }
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}
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internal class DomainDto
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{
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[JsonPropertyName("name")] public string? Name { get; set; }
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[JsonPropertyName("code")] public string? Code { get; set; }
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[JsonPropertyName("competencies")] public List<CompetencyDto>? Competencies { get; set; }
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}
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internal class CompetencyDto
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{
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[JsonPropertyName("code")] public string? Code { get; set; }
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[JsonPropertyName("description")] public string? Description { get; set; }
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}
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