using LehrerApp.Core.Models;
using LehrerApp.Desktop.ViewModels.Students;
using Xunit;

namespace LehrerApp.Desktop.Tests;

public class ManageStudentDialogViewModelTests
{
    [Fact]
    public void VerknuepfteDatenSperrenEndgueltigesLoeschenAberNichtDeaktivieren()
    {
        var student = new Student { FirstName = "Anna", LastName = "Beispiel" };
        var students = new FakeStudents([student]);
        students.SetReferenceSummary(student.Id, new StudentReferenceSummary(1, 2, 0, 0, 3, 1));
        var vm = new ManageStudentDialogViewModel(students, student);

        Assert.False(vm.CanDelete);
        Assert.Equal(4, vm.ReferenceItems.Count);

        vm.DeactivateCommand.Execute(null);

        Assert.False(student.IsActive);
        Assert.Equal(StudentManagementResult.Deactivated, vm.Result);
    }

    [Fact]
    public void UnverknuepfterSchuelerKannEndgueltigGeloeschtWerden()
    {
        var student = new Student { FirstName = "Anna", LastName = "Beispiel" };
        var students = new FakeStudents([student]);
        var vm = new ManageStudentDialogViewModel(students, student);

        vm.DeletePermanentlyCommand.Execute(null);

        Assert.Equal(StudentManagementResult.Deleted, vm.Result);
        Assert.Null(students.GetById(student.Id));
    }

    [Fact]
    public void DeaktivierterSchuelerKannWiederAktiviertWerden()
    {
        var student = new Student { FirstName = "Anna", LastName = "Beispiel", IsActive = false };
        var vm = new ManageStudentDialogViewModel(new FakeStudents([student]), student);

        vm.ReactivateCommand.Execute(null);

        Assert.True(student.IsActive);
        Assert.Equal(StudentManagementResult.Reactivated, vm.Result);
    }
}