LehrerApp/LehrerApp.TemplateDesigner.Tests/ExamCoverDesignerTests.cs

using LehrerApp.TemplateDesigner;
using LehrerApp.Templating;
using Xunit;

namespace LehrerApp.TemplateDesigner.Tests;

public sealed class ExamCoverDesignerTests
{
    [Fact]
    public void Schuelerbericht_EinrichtenUndSonderinhalte_RendernMitBeispieldaten()
    {
        var vm = new DesignerViewModel();
        vm.Reset();
        vm.SetUpStudentReport();
        vm.SetUpStudentReport();
        vm.LayoutSource = StudentReportTemplate.Layout;
        Assert.Equal(TemplateReportTypes.StudentReport, vm.BuildLoaded().Manifest.Metadata[TemplateMetadataKeys.ReportType]);
        Assert.Equal(StudentReportTemplate.Create().Manifest.Placeholders.Count, vm.Placeholders.Count);
        using var pdf = UglyToad.PdfPig.PdfDocument.Open(vm.RenderCurrentPdf());
        var text = string.Concat(pdf.GetPages().Select(p => p.Text)).Replace(" ", "");
        Assert.Contains("GewichteteMitarbeit", text);
        Assert.Contains("Hausaufgaben", text);
        Assert.Contains("VorläufigeZeugnisnote", text);
    }

    [Fact]
    public void SetUpExamCover_SetztVorlagentypUndErgaenztFehlendePlatzhalter()
    {
        var viewModel = new DesignerViewModel();
        viewModel.Reset();
        viewModel.Placeholders.Add(new("Exam.Title", PlaceholderType.Text, true, "Mein Titel"));

        viewModel.SetUpExamCover();
        viewModel.SetUpExamCover();

        Assert.True(viewModel.IsExamCover);
        Assert.Single(viewModel.MetadataItems, x => x.Name == TemplateMetadataKeys.ReportType);
        Assert.Equal(ExamCoverPlaceholders.All.Count, viewModel.Placeholders.Count);
        // Vorhandene Platzhalter bleiben samt Beispielwert erhalten.
        Assert.Equal("Mein Titel", viewModel.Placeholders.Single(x => x.Name == "Exam.Title").Sample);
        Assert.Equal("G-Kurs", viewModel.Placeholders.Single(x => x.Name == "Exam.Course").Sample);
        Assert.Equal(PlaceholderType.Date, viewModel.Placeholders.Single(x => x.Name == "Exam.Date").Type);
        Assert.Equal(TemplateReportTypes.ExamCover,
            viewModel.BuildLoaded().Manifest.Metadata[TemplateMetadataKeys.ReportType]);
    }

    [Fact]
    public void SetUpExamCover_AbweichenderTyp_WirdGemeldetStattUeberschrieben()
    {
        var viewModel = new DesignerViewModel();
        viewModel.Reset();
        viewModel.Placeholders.Add(new("Exam.Date", PlaceholderType.Text, false, "18.12."));

        viewModel.SetUpExamCover();

        Assert.Equal(PlaceholderType.Text, viewModel.Placeholders.Single(x => x.Name == "Exam.Date").Type);
        Assert.Contains("Exam.Date", viewModel.Status);
    }

    [Fact]
    public void Punktetabelle_WirdAlsFlowDrawBoxMitFitContentInDenContentFlowVorbereitet()
    {
        var viewModel = new DesignerViewModel();
        viewModel.Reset();
        viewModel.SelectedSpecialContent = viewModel.SpecialContents.Single(x =>
            x.PlaceholderName == ExamPointsTableDrawing.PlaceholderName);

        viewModel.PrepareSelectedSpecialContent();
        viewModel.AddElement();

        Assert.Contains("FLOWDRAWBOX $Exam.PointsTable w=165 h=150 fit=content", viewModel.LayoutSource);
        var layout = viewModel.BuildLoaded().Layout;
        Assert.IsType<FlowDrawBoxElement>(layout.ContentFlows.Single().Elements.Single());
    }

    [Fact]
    public void Vorschau_ZeigtDieEchtePunktetabelleUndSprechendeBeispielwerte()
    {
        var viewModel = new DesignerViewModel();
        viewModel.Reset();
        viewModel.SetUpExamCover();
        viewModel.LayoutSource = """
            PAGE 210 297 mm
            #pragma format-version 3
            #pragma page-template first
            TEXT 20 20 "Fach: $Subject.Name $Exam.Course $Teacher.Abbreviation" size=12
            #pragma flow-slot body x=20 y=40 w=170 h=230
            #pragma end-page-template
            #pragma content-flow body
            FLOWDRAWBOX $Exam.PointsTable w=100 h=150 fit=content
            TEXT "Gesamtpunkte: $Result.Points von $Exam.MaxPoints Punkte" size=11 gap=8
            #pragma end-content-flow
            """;

        using var document = UglyToad.PdfPig.PdfDocument.Open(viewModel.RenderCurrentPdf());
        var text = document.GetPage(1).Text.Replace(" ", "");

        Assert.Contains("Fach:ChemieG-KursHED", text);
        Assert.Contains("Gesamtpunkte:52,5von62Punkte", text);
        Assert.Contains("+3", text);
        // 100 mm Boxbreite: drei Aufgaben je Block, also drei Blöcke für neun Spalten.
        Assert.Equal(3, System.Text.RegularExpressions.Regex.Matches(text, "Max.Punktzahl").Count);
    }

    [Fact]
    public void Laden_EinerDeckblattVorlage_VerwendetSprechendeBeispielwerte()
    {
        var source = new DesignerViewModel();
        source.Reset();
        source.SetUpExamCover();
        var loaded = source.BuildLoaded();

        var viewModel = new DesignerViewModel();
        viewModel.Load(loaded, source.LayoutSource);

        Assert.True(viewModel.IsExamCover);
        Assert.Equal("Atombau und PSE", viewModel.Placeholders.Single(x => x.Name == "Exam.Title").Sample);
    }
}