[fix:] first semester priority

CustomFontResolver.cs

@@ -0,0 +1,77 @@
+using System;
+using System.IO;
+using PdfSharp.Drawing;
+using PdfSharp.Fonts;
+
+namespace spplus;
+
+/// <summary>
+/// Custom font resolver for PdfSharp that loads fonts from the res/fonts directory.
+/// </summary>
+public class CustomFontResolver : IFontResolver
+{
+    private static string? _fontPath;
+
+    public CustomFontResolver()
+    {
+        // Try to locate the fonts directory
+        var basePath = AppDomain.CurrentDomain.BaseDirectory;
+        var possiblePaths = new[]
+        {
+            Path.Combine(basePath, "res", "fonts"),
+            Path.Combine(basePath, "fonts"),
+            Path.Combine(Directory.GetCurrentDirectory(), "res", "fonts"),
+            Path.Combine(Directory.GetCurrentDirectory(), "fonts"),
+        };
+
+        foreach (var path in possiblePaths)
+        {
+            if (Directory.Exists(path))
+            {
+                _fontPath = path;
+                break;
+            }
+        }
+
+        if (_fontPath == null)
+        {
+            throw new DirectoryNotFoundException(
+                $"Font directory not found. Searched: {string.Join(", ", possiblePaths)}");
+        }
+    }
+
+    public FontResolverInfo ResolveTypeface(string familyName, bool isBold, bool isItalic)
+    {
+        // Map family name to font file
+        var fileName = familyName switch
+        {
+            "Cantarell" => isBold 
+                ? isItalic ? "Cantarell-BoldItalic.ttf" : "Cantarell-Bold.ttf"
+                : isItalic ? "Cantarell-Italic.ttf" : "Cantarell-Regular.ttf",
+            _ => isBold
+                ? isItalic ? "Cantarell-BoldItalic.ttf" : "Cantarell-Bold.ttf"
+                : isItalic ? "Cantarell-Italic.ttf" : "Cantarell-Regular.ttf"
+        };
+
+        var fontPath = Path.Combine(_fontPath, fileName);
+        
+        if (!File.Exists(fontPath))
+        {
+            throw new FileNotFoundException($"Font file not found: {fontPath}");
+        }
+
+        // Return a FontResolverInfo with the font path
+        return new FontResolverInfo(fontPath);
+    }
+
+    public byte[]? GetFont(string faceName)
+    {
+        // faceName is the path returned by ResolveTypeface
+        if (File.Exists(faceName))
+        {
+            return File.ReadAllBytes(faceName);
+        }
+
+        return null;
+    }
+}

MainWindow.axaml.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Linq;
+using System.Threading.Tasks;
 using Avalonia.Controls;
 using Avalonia.Input;
 using Avalonia.Interactivity;
@@ -59,14 +60,14 @@ public partial class MainWindow : Window
         }
     }
 
-    private void ChangeStudentCourse(Sport targetSport)
+    private async void ChangeStudentCourse(Sport targetSport)
     {
         if (LbResult.SelectedItem is not ResultEntry selectedEntry)
             return;
 
         try
         {
-            if (ApplyStudentCourseChange(selectedEntry.Student, selectedEntry.Semester, targetSport))
+            if (await ApplyStudentCourseChange(selectedEntry.Student, selectedEntry.Semester, targetSport))
             {
                 CourseCrafter.ReloadResult();
                 RefreshResultView();
@@ -79,7 +80,7 @@ public partial class MainWindow : Window
         }
     }
 
-    private bool ApplyStudentCourseChange(Student student, int semester, Sport targetSport)
+    private async Task<bool> ApplyStudentCourseChange(Student student, int semester, Sport targetSport)
     {
         if (semester < 1 || semester > 4)
             return false;
@@ -92,14 +93,24 @@ public partial class MainWindow : Window
             .Where(course => course.Instance.Students.Contains(student.ID))
             .ToList();
 
-        CourseCrafter.CourseInstance? targetCourse = currentCourses
-            .FirstOrDefault(course => course.Instance.Sport.Name == targetSport.Name)
-            .Instance;
+        string? oldSportName = currentCourses
+            .Select(course => course.Instance.Sport.Name)
+            .FirstOrDefault();
 
-        if (targetCourse == null)
+        var existingTargetCourses = semesterCourses
+            .Where(course => course.Instance.Sport.Name == targetSport.Name)
+            .ToList();
+
+        CourseCrafter.CourseInstance? targetCourse = existingTargetCourses
+            .Where(course => !course.Instance.Students.Contains(student.ID) &&
+                             course.Instance.Students.Count < course.Instance.Sport.MaxStudents)
+            .OrderBy(course => course.Instance.Students.Count)
+            .Select(course => course.Instance)
+            .FirstOrDefault();
+
+        if (targetCourse == null && existingTargetCourses.Any())
         {
-            targetCourse = semesterCourses
-                .Where(course => course.Instance.Sport.Name == targetSport.Name)
+            targetCourse = existingTargetCourses
                 .OrderBy(course => course.Instance.Students.Count)
                 .Select(course => course.Instance)
                 .FirstOrDefault();
@@ -140,9 +151,87 @@ public partial class MainWindow : Window
             changed = true;
         }
 
+        if (changed && !string.IsNullOrEmpty(oldSportName) &&
+            IsRebalanceNeededForSportSemester(oldSportName, semester))
+        {
+            var result = await MessageBox.Show(this,
+                $"Der Kursplan für {oldSportName} im {semester}. Semester ist nach der Änderung unausgeglichen. Soll die alte Sportart umverteilt werden?",
+                "Umverteilung der alten Sportart", MessageBoxButton.YesNo);
+
+            if (result == MessageBoxResult.Yes)
+                BalanceSportSemester(oldSportName, semester);
+        }
+
         return changed;
     }
 
+    private bool IsRebalanceNeededForSportSemester(string sportName, int semester)
+    {
+        var courses = CourseCrafter.GeneratedCourses
+            .Where(course => course.Semester == semester && course.Instance.Sport.Name == sportName)
+            .ToList();
+
+        if (courses.Count <= 1)
+            return false;
+
+        var ordered = courses
+            .OrderBy(course => course.Instance.Students.Count)
+            .ToList();
+
+        int minCount = ordered.First().Instance.Students.Count;
+        int maxCount = ordered.Last().Instance.Students.Count;
+        if (maxCount - minCount <= 1)
+            return false;
+
+        if (ordered.Last().Instance.Students.Count - 1 < GetEffectiveMinStudents(ordered.Last().Instance.Sport, semester))
+            return false;
+
+        if (ordered.First().Instance.Students.Count >= ordered.First().Instance.Sport.MaxStudents)
+            return false;
+
+        return true;
+    }
+
+    private void BalanceSportSemester(string sportName, int semester)
+    {
+        bool changed;
+        do
+        {
+            changed = false;
+
+            var courses = CourseCrafter.GeneratedCourses
+                .Where(course => course.Semester == semester && course.Instance.Sport.Name == sportName)
+                .OrderBy(course => course.Instance.Students.Count)
+                .ToList();
+
+            if (courses.Count <= 1)
+                break;
+
+            var target = courses.First();
+            var source = courses.Last();
+
+            if (source.Instance.Students.Count <= target.Instance.Students.Count + 1)
+                break;
+
+            if (source.Instance.Students.Count - 1 < GetEffectiveMinStudents(source.Instance.Sport, semester))
+                break;
+
+            if (target.Instance.Students.Count >= target.Instance.Sport.MaxStudents)
+                break;
+
+            var studentId = source.Instance.Students[^1];
+            source.Instance.Students.RemoveAt(source.Instance.Students.Count - 1);
+            target.Instance.Students.Add(studentId);
+            changed = true;
+        } while (changed);
+    }
+
+    private int GetEffectiveMinStudents(Sport sport, int semester)
+    {
+        int reduction = (semester >= 3) ? 2 : 0;
+        return Math.Max(1, sport.MinStudents - reduction);
+    }
+
     private async void MnuExpSettings_OnClick(object? sender, RoutedEventArgs e)
     {
         await ExportConfigurationAsync();

PdfExportUtility.cs

@@ -0,0 +1,621 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using PdfSharp;
+using PdfSharp.Drawing;
+using PdfSharp.Pdf;
+
+namespace spplus;
+
+public static class PdfExportUtility
+{
+    private const string FontFamily = "Cantarell";
+    private const double Margin = 36.0;
+    private const double FooterHeight = 28.0;
+    private static readonly XBrush FooterBrush = XBrushes.Gray;
+
+    public static void ExportGeneratedCourses(string filepath)
+    {
+        var document = new PdfDocument
+        {
+            Info =
+            {
+                Title = "spplus - generierte Kurse",
+                Author = "spplus",
+                Creator = "spplus"
+            }
+        };
+
+        var courses = CourseCrafter.GeneratedCourses
+            .OrderBy(course => course.Semester)
+            .ThenBy(course => course.Instance.Sport.Name)
+            .ToList();
+
+        if (courses.Count == 0)
+        {
+            RenderEmptyDocument(document);
+            document.Save(filepath);
+            return;
+        }
+
+        RenderCoursesOverview(document, courses);
+
+        var studentsById = Settings.Instance.Students
+            .GroupBy(student => student.ID, StringComparer.OrdinalIgnoreCase)
+            .ToDictionary(group => group.Key, group => group.First(), StringComparer.OrdinalIgnoreCase);
+
+        foreach (var course in courses)
+        {
+            RenderCourse(document, course, studentsById);
+        }
+
+        RenderMissingStudentsReport(document, studentsById, courses);
+        document.Save(filepath);
+    }
+
+    private static void RenderMissingStudentsReport(
+        PdfDocument document,
+        IReadOnlyDictionary<string, Student> studentsById,
+        IReadOnlyList<(int Semester, CourseCrafter.CourseInstance Instance)> courses)
+    {
+        var assignedSemesters = studentsById.Values
+            .ToDictionary(student => student.ID, _ => new bool[4], StringComparer.OrdinalIgnoreCase);
+
+        foreach (var course in courses)
+        {
+            if (course.Semester < 1 || course.Semester > 4)
+                continue;
+
+            foreach (var studentId in course.Instance.Students)
+            {
+                if (assignedSemesters.TryGetValue(studentId, out var assignment))
+                    assignment[course.Semester - 1] = true;
+            }
+        }
+
+        var missingStudents = studentsById.Values
+            .Where(student => assignedSemesters.TryGetValue(student.ID, out var assignment) && assignment.Any(a => !a))
+            .OrderBy(student => student.Name)
+            .ThenBy(student => student.ID)
+            .ToList();
+
+        var columns = new double[] { 30.0, 90.0, 190.0, 40.0, 40.0, 40.0, 40.0 };
+        var headerRow = new[] { "Nr.", "ID", "Name", "Sem1", "Sem2", "Sem3", "Sem4" };
+        int rowIndex = 0;
+        int pageIndex = 0;
+
+        while (rowIndex < missingStudents.Count || pageIndex == 0)
+        {
+            var page = document.AddPage();
+            ConfigurePage(page);
+
+            using var gfx = XGraphics.FromPdfPage(page);
+            var titleFont = new XFont(FontFamily, 18, XFontStyleEx.Bold);
+            var subtitleFont = new XFont(FontFamily, 10, XFontStyleEx.Regular);
+            var tableHeaderFont = new XFont(FontFamily, 9, XFontStyleEx.Bold);
+            var tableBodyFont = new XFont(FontFamily, 8.5, XFontStyleEx.Regular);
+
+            double pageWidth = page.Width.Point;
+            double pageHeight = page.Height.Point;
+            double contentWidth = pageWidth - (Margin * 2);
+            double contentBottom = pageHeight - Margin - FooterHeight;
+            double y = Margin;
+
+            var headerTitle = pageIndex == 0
+                ? "Nicht zugeordnete Schülerinnen und Schüler"
+                : "Fortsetzung: Nicht zugeordnete Schülerinnen und Schüler";
+
+            gfx.DrawString(headerTitle, titleFont, XBrushes.Black,
+                new XRect(Margin, y, contentWidth, 24), XStringFormats.TopLeft);
+            y += 26;
+
+            if (pageIndex == 0)
+            {
+                gfx.DrawString("Es werden nur Schülerinnen und Schüler aufgeführt, die in mindestens einem Semester keine Zuordnung erhalten haben.",
+                    subtitleFont, XBrushes.Gray, new XRect(Margin, y, contentWidth, 20), XStringFormats.TopLeft);
+                y += 24;
+            }
+
+            if (missingStudents.Count == 0)
+            {
+                var bodyFont = new XFont(FontFamily, 11, XFontStyleEx.Regular);
+                gfx.DrawString("Alle Schülerinnen und Schüler sind in allen vier Semestern zugeordnet.", bodyFont, XBrushes.Black,
+                    new XRect(Margin, y, contentWidth, 20), XStringFormats.TopLeft);
+                DrawFooter(gfx, page);
+                break;
+            }
+
+            y += DrawTableRow(gfx, y, columns, headerRow, tableHeaderFont, fillHeader: true);
+
+            while (rowIndex < missingStudents.Count)
+            {
+                var student = missingStudents[rowIndex];
+                var assignment = assignedSemesters[student.ID];
+                var row = BuildMissingStudentRow(rowIndex + 1, student, assignment);
+                double rowHeight = MeasureRowHeight(gfx, columns, row, tableBodyFont);
+
+                if (y + rowHeight > contentBottom)
+                    break;
+
+                y += DrawTableRow(gfx, y, columns, row, tableBodyFont, fillHeader: false);
+                rowIndex++;
+            }
+
+            DrawFooter(gfx, page);
+            pageIndex++;
+
+            if (rowIndex >= missingStudents.Count)
+                break;
+        }
+    }
+
+    private static string[] BuildMissingStudentRow(int rowNumber, Student student, bool[] assignment)
+    {
+        return new[]
+        {
+            rowNumber.ToString(),
+            student.ID,
+            student.Name,
+            assignment[0] ? string.Empty : "X",
+            assignment[1] ? string.Empty : "X",
+            assignment[2] ? string.Empty : "X",
+            assignment[3] ? string.Empty : "X",
+        };
+    }
+
+    private static void RenderEmptyDocument(PdfDocument document)
+    {
+        var page = document.AddPage();
+        ConfigurePage(page);
+
+        using var gfx = XGraphics.FromPdfPage(page);
+        var titleFont = new XFont(FontFamily, 18, XFontStyleEx.Bold);
+        var bodyFont = new XFont(FontFamily, 11, XFontStyleEx.Regular);
+
+        gfx.DrawString("spplus", titleFont, XBrushes.Black,
+            new XRect(Margin, Margin, page.Width.Point - Margin * 2, 24), XStringFormats.TopLeft);
+        gfx.DrawString("Es wurden keine generierten Kurse gefunden.", bodyFont, XBrushes.Black,
+            new XRect(Margin, Margin + 34, page.Width.Point - Margin * 2, 24), XStringFormats.TopLeft);
+
+        DrawFooter(gfx, page);
+    }
+
+    private static void RenderCoursesOverview(
+        PdfDocument document,
+        IReadOnlyList<(int Semester, CourseCrafter.CourseInstance Instance)> courses)
+    {
+        var overviewFont = new XFont(FontFamily, 18, XFontStyleEx.Bold);
+        var subtitleFont = new XFont(FontFamily, 10, XFontStyleEx.Regular);
+        var tableHeaderFont = new XFont(FontFamily, 9, XFontStyleEx.Bold);
+        var tableBodyFont = new XFont(FontFamily, 8.5, XFontStyleEx.Regular);
+
+        int count = 0;
+        
+        var coursesPerSemester = courses
+            .GroupBy(course => course.Semester)
+            .ToDictionary(group => group.Key, group => group.Count());
+
+        var courseIndexBySemester = new Dictionary<int, int>();
+        var rows = courses.Select(course =>
+        {
+            count++;
+            var key = course.Semester;
+            courseIndexBySemester.TryGetValue(key, out var index);
+            index++;
+            courseIndexBySemester[key] = index;
+
+            return new[]
+            {
+                count.ToString(),
+                course.Semester.ToString(),
+                course.Instance.Sport.Name,
+                $"{index}/{coursesPerSemester[key]}",
+                course.Instance.Students.Count.ToString()
+            };
+        }).ToList();
+
+        var columns = new[] { 50.0, 70.0, 150.0, 150.0, 100.0 };
+        var headerRow = new[]
+        {
+            "Nr.",
+            "Semester",
+            "Sportart",
+            "Kurs (Semester)",
+            "Anzahl SuS"
+        };
+
+        int rowIndex = 0;
+        int pageIndex = 0;
+
+        
+        while (rowIndex < rows.Count || pageIndex == 0)
+        {
+            var page = document.AddPage();
+            ConfigurePage(page);
+            
+            using var gfx = XGraphics.FromPdfPage(page);
+            double pageWidth = page.Width.Point;
+            double pageHeight = page.Height.Point;
+            double contentWidth = pageWidth - (Margin * 2);
+            double contentBottom = pageHeight - Margin - FooterHeight;
+            double y = Margin;
+
+            var headerTitle = pageIndex == 0
+                ? "Übersicht generierter Kurse"
+                : "Fortsetzung: Übersicht generierter Kurse";
+
+            gfx.DrawString(headerTitle, overviewFont, XBrushes.Black,
+                new XRect(Margin, y, contentWidth, 24), XStringFormats.TopLeft);
+            y += 26;
+
+            if (pageIndex == 0)
+            {
+                gfx.DrawString("Tabellarische Übersicht aller generierten Kurse nach Semester und Sportart.",
+                    subtitleFont, XBrushes.Gray, new XRect(Margin, y, contentWidth, 20), XStringFormats.TopLeft);
+                y += 24;
+            }
+
+            y += DrawTableRow(gfx, y, columns, headerRow, tableHeaderFont, fillHeader: true);
+
+            while (rowIndex < rows.Count)
+            {
+                
+                var row = rows[rowIndex];
+                double rowHeight = MeasureRowHeight(gfx, columns, row, tableBodyFont);
+
+                if (y + rowHeight > contentBottom)
+                    break;
+
+                y += DrawTableRow(gfx, y, columns, row, tableBodyFont, fillHeader: false);
+                rowIndex++;
+            }
+
+            DrawFooter(gfx, page);
+            pageIndex++;
+
+            if (rowIndex >= rows.Count)
+                break;
+        }
+    }
+
+    private static void RenderCourse(
+        PdfDocument document,
+        (int Semester, CourseCrafter.CourseInstance Instance) course,
+        IReadOnlyDictionary<string, Student> studentsById)
+    {
+        var studentIds = course.Instance.Students.ToList();
+        int index = 0;
+        int pageIndex = 0;
+
+        do
+        {
+            var page = document.AddPage();
+            ConfigurePage(page);
+
+            using var gfx = XGraphics.FromPdfPage(page);
+            var titleFont = new XFont(FontFamily, 18, XFontStyleEx.Bold);
+            var subtitleFont = new XFont(FontFamily, 10, XFontStyleEx.Regular);
+            var labelFont = new XFont(FontFamily, 9, XFontStyleEx.Bold);
+            var valueFont = new XFont(FontFamily, 9, XFontStyleEx.Regular);
+            var tableHeaderFont = new XFont(FontFamily, 9, XFontStyleEx.Bold);
+            var tableBodyFont = new XFont(FontFamily, 8.5, XFontStyleEx.Regular);
+
+            double pageWidth = page.Width.Point;
+            double pageHeight = page.Height.Point;
+            double contentWidth = pageWidth - (Margin * 2);
+            double contentBottom = pageHeight - Margin - FooterHeight;
+            double y = Margin;
+
+            var headerTitle = $"Sem. {course.Semester} - {course.Instance.Sport.Name}";
+            if (pageIndex > 0)
+                headerTitle += " (Fortsetzung)";
+
+            gfx.DrawString(headerTitle, titleFont, XBrushes.Black,
+                new XRect(Margin, y, contentWidth, 24), XStringFormats.TopLeft);
+            y += 26;
+
+            gfx.DrawString($"{course.Instance.Students.Count} Schülerinnen und Schüler", subtitleFont,
+                XBrushes.Gray, new XRect(Margin, y, contentWidth, 18), XStringFormats.TopLeft);
+            y += 24;
+
+            y = DrawInfoRows(gfx, y, contentWidth, labelFont, valueFont, course);
+            y += 10;
+
+            var columns = GetTableColumns(contentWidth);
+            var headerRow = new[]
+            {
+                "Nr.",
+                "ID",
+                "Name",
+            };
+
+            y += DrawTableRow(gfx, y, columns, headerRow, tableHeaderFont, fillHeader: true);
+
+            if (studentIds.Count == 0)
+            {
+                var emptyFont = new XFont(FontFamily, 9, XFontStyleEx.Italic);
+                gfx.DrawString("Keine Schülerinnen und Schüler zugeordnet.", emptyFont, XBrushes.Gray,
+                    new XRect(Margin + 6, y + 8, contentWidth - 12, 20), XStringFormats.TopLeft);
+            }
+            else
+            {
+                while (index < studentIds.Count)
+                {
+                    if (!studentsById.TryGetValue(studentIds[index], out var student))
+                        student = new Student { ID = studentIds[index] };
+
+                    var row = BuildStudentRow(index + 1, student);
+                    double rowHeight = MeasureRowHeight(gfx, columns, row, tableBodyFont);
+
+                    if (y + rowHeight > contentBottom)
+                        break;
+
+                    y += DrawTableRow(gfx, y, columns, row, tableBodyFont, fillHeader: false);
+                    index++;
+                }
+            }
+
+            DrawFooter(gfx, page);
+            pageIndex++;
+        } while (index < studentIds.Count);
+    }
+
+    private static double DrawInfoRows(
+        XGraphics gfx,
+        double startY,
+        double contentWidth,
+        XFont labelFont,
+        XFont valueFont,
+        (int Semester, CourseCrafter.CourseInstance Instance) course)
+    {
+        double y = startY;
+        double labelWidth = 160.0;
+        double valueWidth = contentWidth - labelWidth;
+        double rowPadding = 4.0;
+
+        var rows = new List<(string Label, string Value)>
+        {
+            ("Kurs-ID", course.Instance.Sport.ID.ToString()),
+            ("Kursname", course.Instance.Sport.Name),
+            ("Semester", course.Semester.ToString()),
+            ("Anzahl SuS", course.Instance.Students.Count.ToString()),
+            ("Min / Max", $"{course.Instance.Sport.MinStudents} / {course.Instance.Sport.MaxStudents}"),
+            ("Semesterangebote", string.Join(", ", course.Instance.Sport.Semester.Select((count, idx) => $"S{idx + 1}:{count}"))),
+            ("Alternativnamen", course.Instance.Sport.AlternativeNames.Count == 0
+                ? "-"
+                : string.Join(", ", course.Instance.Sport.AlternativeNames))
+        };
+
+        foreach (var row in rows)
+        {
+            double rowHeight = MeasureInfoRowHeight(gfx, labelFont, valueFont, labelWidth, valueWidth, row.Label, row.Value);
+
+            gfx.DrawRectangle(XPens.LightGray, Margin, y, labelWidth, rowHeight);
+            gfx.DrawRectangle(XPens.LightGray, Margin + labelWidth, y, valueWidth, rowHeight);
+
+            DrawWrappedText(gfx, row.Label, labelFont, XBrushes.Black, Margin + 4, y + rowPadding, labelWidth - 8);
+            DrawWrappedText(gfx, row.Value, valueFont, XBrushes.Black, Margin + labelWidth + 4, y + rowPadding, valueWidth - 8);
+
+            y += rowHeight;
+        }
+
+        return y;
+    }
+
+    private static double MeasureInfoRowHeight(
+        XGraphics gfx,
+        XFont labelFont,
+        XFont valueFont,
+        double labelWidth,
+        double valueWidth,
+        string label,
+        string value)
+    {
+        double labelHeight = MeasureWrappedTextHeight(gfx, label, labelFont, labelWidth - 8);
+        double valueHeight = MeasureWrappedTextHeight(gfx, value, valueFont, valueWidth - 8);
+        return Math.Max(labelHeight, valueHeight) + 8.0;
+    }
+
+    private static string[] BuildStudentRow(int rowNumber, Student student)
+    {
+        return new[]
+        {
+            rowNumber.ToString(),
+            student.ID,
+            student.Name,
+        };
+    }
+
+    private static string GetCourseName(Student student, int index)
+    {
+        if (index < 0 || index >= student.SelectedCourseNames.Count)
+            return string.Empty;
+
+        return student.SelectedCourseNames[index];
+    }
+
+    private static double[] GetTableColumns(double contentWidth)
+    {
+        return new[]
+        {
+            30.0,
+            75.0,
+            145.0
+        };
+    }
+
+    private static double DrawTableRow(
+        XGraphics gfx,
+        double startY,
+        double[] columns,
+        IReadOnlyList<string> values,
+        XFont font,
+        bool fillHeader)
+    {
+        const double padding = 4.0;
+        double rowHeight = MeasureRowHeight(gfx, columns, values, font);
+        double x = Margin;
+
+        for (int i = 0; i < columns.Length; i++)
+        {
+            double width = columns[i];
+            var rect = new XRect(x, startY, width, rowHeight);
+            gfx.DrawRectangle(XPens.LightGray, rect);
+
+            if (fillHeader)
+                gfx.DrawRectangle(new XSolidBrush(XColor.FromArgb(235, 235, 235)), rect);
+
+            gfx.DrawRectangle(XPens.LightGray, rect);
+
+            var lines = WrapText(gfx, values[i], font, width - (padding * 2));
+            double lineHeight = font.GetHeight();
+            double textY = startY + padding;
+
+            foreach (var line in lines)
+            {
+                gfx.DrawString(line, font, XBrushes.Black,
+                    new XRect(x + padding, textY, width - (padding * 2), lineHeight), XStringFormats.TopLeft);
+                textY += lineHeight;
+            }
+
+            x += width;
+        }
+
+        return rowHeight;
+    }
+
+    private static double MeasureRowHeight(
+        XGraphics gfx,
+        double[] columns,
+        IReadOnlyList<string> values,
+        XFont font)
+    {
+        const double padding = 4.0;
+        double maxHeight = font.GetHeight() + (padding * 2);
+
+        for (int i = 0; i < columns.Length; i++)
+        {
+            double height = MeasureWrappedTextHeight(gfx, values[i], font, columns[i] - (padding * 2)) + (padding * 2);
+            if (height > maxHeight)
+                maxHeight = height;
+        }
+
+        return maxHeight;
+    }
+
+    private static double MeasureWrappedTextHeight(XGraphics gfx, string text, XFont font, double width)
+    {
+        var lines = WrapText(gfx, text, font, width);
+        return lines.Count * font.GetHeight();
+    }
+
+    private static List<string> WrapText(XGraphics gfx, string? text, XFont font, double maxWidth)
+    {
+        var result = new List<string>();
+
+        if (string.IsNullOrWhiteSpace(text))
+        {
+            result.Add(string.Empty);
+            return result;
+        }
+
+        foreach (var paragraph in text.Replace("\r", string.Empty).Split('\n'))
+        {
+            if (string.IsNullOrWhiteSpace(paragraph))
+            {
+                result.Add(string.Empty);
+                continue;
+            }
+
+            string current = string.Empty;
+            foreach (var token in paragraph.Split(' ', StringSplitOptions.RemoveEmptyEntries))
+            {
+                foreach (var wordPart in SplitWordIfNeeded(gfx, token, font, maxWidth))
+                {
+                    var candidate = string.IsNullOrEmpty(current) ? wordPart : $"{current} {wordPart}";
+                    if (gfx.MeasureString(candidate, font).Width <= maxWidth)
+                    {
+                        current = candidate;
+                    }
+                    else
+                    {
+                        if (!string.IsNullOrEmpty(current))
+                            result.Add(current);
+
+                        current = wordPart;
+                    }
+                }
+            }
+
+            if (!string.IsNullOrEmpty(current))
+                result.Add(current);
+        }
+
+        return result.Count == 0 ? new List<string> { string.Empty } : result;
+    }
+
+    private static IEnumerable<string> SplitWordIfNeeded(XGraphics gfx, string word, XFont font, double maxWidth)
+    {
+        if (gfx.MeasureString(word, font).Width <= maxWidth)
+        {
+            yield return word;
+            yield break;
+        }
+
+        string chunk = string.Empty;
+        foreach (char c in word)
+        {
+            string candidate = chunk + c;
+            if (chunk.Length > 0 && gfx.MeasureString(candidate, font).Width > maxWidth)
+            {
+                yield return chunk;
+                chunk = c.ToString();
+            }
+            else
+            {
+                chunk = candidate;
+            }
+        }
+
+        if (!string.IsNullOrEmpty(chunk))
+            yield return chunk;
+    }
+
+    private static void DrawWrappedText(
+        XGraphics gfx,
+        string? text,
+        XFont font,
+        XBrush brush,
+        double x,
+        double y,
+        double width)
+    {
+        double lineHeight = font.GetHeight();
+        foreach (var line in WrapText(gfx, text, font, width))
+        {
+            gfx.DrawString(line, font, brush, new XRect(x, y, width, lineHeight), XStringFormats.TopLeft);
+            y += lineHeight;
+        }
+    }
+
+    private static void DrawFooter(XGraphics gfx, PdfPage page)
+    {
+        var footerFont = new XFont(FontFamily, 7, XFontStyleEx.Regular);
+        double width = page.Width.Point - (Margin * 2);
+        double x = Margin;
+        double baseY = page.Height.Point - Margin + 2;
+
+        gfx.DrawString("generated by spplus", footerFont, FooterBrush,
+            new XRect(x, baseY, width, 9), XStringFormats.Center);
+        gfx.DrawString("(c) 2026 MyPapertown", footerFont, FooterBrush,
+            new XRect(x, baseY + 8, width, 9), XStringFormats.Center);
+        gfx.DrawString("www.mypapercloud.de/spplus", footerFont, FooterBrush,
+            new XRect(x, baseY + 16, width, 9), XStringFormats.Center);
+    }
+
+    private static void ConfigurePage(PdfPage page)
+    {
+        page.Size = PageSize.A4;
+        page.Orientation = PageOrientation.Portrait;
+    }
+}

crafter.cs

@@ -383,6 +383,8 @@ public class CourseCrafter
         }
     }
 
+    BalanceCoursesBetweenSameSportAndSemester();
+
     // ---------------------------------------------------------------------------
     // Lokale Hilfsfunktionen
     // ---------------------------------------------------------------------------
@@ -406,6 +408,54 @@ public class CourseCrafter
         return true;
     }
 
+    void BalanceCoursesBetweenSameSportAndSemester()
+    {
+        bool changed;
+        do
+        {
+            changed = false;
+            var groups = GeneratedCourses
+                .GroupBy(c => (c.Semester, c.Instance.Sport.Name))
+                .Where(g => g.Count() > 1);
+
+            foreach (var group in groups)
+            {
+                var courses = group
+                    .OrderBy(c => c.Instance.Students.Count)
+                    .ToList();
+
+                for (int sourceIndex = courses.Count - 1; sourceIndex > 0; sourceIndex--)
+                {
+                    var sourceCourse = courses[sourceIndex];
+                    for (int targetIndex = 0; targetIndex < sourceIndex; targetIndex++)
+                    {
+                        var targetCourse = courses[targetIndex];
+                        if (sourceCourse.Instance.Students.Count <= targetCourse.Instance.Students.Count + 1)
+                            break;
+
+                        if (targetCourse.Instance.Students.Count >= targetCourse.Instance.Sport.MaxStudents)
+                            continue;
+
+                        if (sourceCourse.Instance.Students.Count - 1 < getEffectiveMinStudents(sourceCourse.Instance.Sport, sourceCourse.Semester))
+                            continue;
+
+                        var studentId = sourceCourse.Instance.Students[^1];
+                        sourceCourse.Instance.Students.RemoveAt(sourceCourse.Instance.Students.Count - 1);
+                        targetCourse.Instance.Students.Add(studentId);
+                        changed = true;
+                        break;
+                    }
+
+                    if (changed)
+                        break;
+                }
+
+                if (changed)
+                    break;
+            }
+        } while (changed);
+    }
+
     bool requestExit()
     {
         globalCount++;
@@ -694,6 +744,87 @@ public class CourseCrafter
         return true;
     }
 
+    bool EnsureFirstSemesterCoverage()
+    {
+        bool changed = false;
+
+        foreach (var student in Settings.Instance.Students)
+        {
+            if (student.SelectedCourseNames.Count == 0)
+                continue;
+
+            var assignments = GetAssignmentsBySemester(student.ID);
+            if (assignments[0] != null)
+                continue;
+
+            if (TryAssignStudentToFirstSemester(student))
+                changed = true;
+        }
+
+        return changed;
+    }
+
+    bool TryAssignStudentToFirstSemester(Student student)
+    {
+        var desiredSports = student.SelectedCourseNames
+            .Select(ResolveSportFromSelection)
+            .Where(sp => sp != null && sp.Semester[0] != 0)
+            .DistinctBy(sp => sp!.Name)
+            .Select(sp => sp!)
+            .ToList();
+
+        foreach (var sport in desiredSports)
+        {
+            // Direkt in bestehendes Kursangebot eintragen
+            var existingCourse = GeneratedCourses
+                .FirstOrDefault(c => c.Semester == 1 && c.Instance.Sport.Name == sport.Name &&
+                                     c.Instance.Students.Count < c.Instance.Sport.MaxStudents);
+
+            if (existingCourse.Instance != null)
+            {
+                existingCourse.Instance.Students.Add(student.ID);
+                students_in_semester[0].Add(student.ID);
+                return true;
+            }
+
+            // Versuche einen Teilnehmer aus einem bestehenden Sem.1-Kurs umzudisponieren
+            var firstSemesterCourses = GeneratedCourses
+                .Where(c => c.Semester == 1 && c.Instance.Sport.Name == sport.Name)
+                .ToList();
+
+            foreach (var course in firstSemesterCourses)
+            {
+                if (course.Instance.Students.Count <= getEffectiveMinStudents(sport, 1))
+                    continue;
+
+                foreach (var otherStudent in course.Instance.Students.ToList())
+                {
+                    if (otherStudent == student.ID)
+                        continue;
+
+                    var targetCourse = GeneratedCourses
+                        .FirstOrDefault(c => c.Semester != 1 && c.Instance.Sport.Name == sport.Name &&
+                                             c.Instance.Students.Count < c.Instance.Sport.MaxStudents &&
+                                             !students_in_semester[c.Semester - 1].Contains(otherStudent));
+
+                    if (targetCourse.Instance == null)
+                        continue;
+
+                    course.Instance.Students.Remove(otherStudent);
+                    students_in_semester[0].Remove(otherStudent);
+                    targetCourse.Instance.Students.Add(otherStudent);
+                    students_in_semester[targetCourse.Semester - 1].Add(otherStudent);
+
+                    course.Instance.Students.Add(student.ID);
+                    students_in_semester[0].Add(student.ID);
+                    return true;
+                }
+            }
+        }
+
+        return false;
+    }
+
     (int Semester, CourseInstance Instance)?[] GetAssignmentsBySemester(string studentId)
     {
         var assignments = new (int Semester, CourseInstance Instance)?[4];
@@ -750,7 +881,8 @@ public class CourseCrafter
 
             if (freeInterestedStudents > maxFreeInterestedStudents ||
                 (freeInterestedStudents == maxFreeInterestedStudents &&
-                 totalCoursesPerSemester[i] < minCourses))
+                 (totalCoursesPerSemester[i] < minCourses ||
+                  (totalCoursesPerSemester[i] == minCourses && semesterNumber < bestSem))))
             {
                 maxFreeInterestedStudents = freeInterestedStudents;
                 minCourses = totalCoursesPerSemester[i];
@@ -761,6 +893,7 @@ public class CourseCrafter
         return bestSem;
     }
 
+    EnsureFirstSemesterCoverage();
     ReloadResult();
 }
 

spplus.csproj

@@ -19,21 +19,8 @@
       <PrivateAssets Condition="'$(Configuration)' != 'Debug'">All</PrivateAssets>
     </PackageReference>
     <PackageReference Include="Lucide.Avalonia" Version="0.1.35"/>
-  </ItemGroup>
-
-  <ItemGroup>
-    <Reference Include="PdfSharp">
-      <HintPath>lib/pdfsharp/PdfSharp.dll</HintPath>
-      <Private>true</Private>
-    </Reference>
-    <Reference Include="PdfSharp.System">
-      <HintPath>lib/pdfsharp/PdfSharp.System.dll</HintPath>
-      <Private>true</Private>
-    </Reference>
-    <Reference Include="Microsoft.Extensions.Logging.Abstractions">
-      <HintPath>lib/pdfsharp/Microsoft.Extensions.Logging.Abstractions.dll</HintPath>
-      <Private>true</Private>
-    </Reference>
+    <PackageReference Include="PdfSharp" Version="6.2.4"/>
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.8"/>
   </ItemGroup>
 
   <ItemGroup>