[fix:] sentence was too long

Reviewed-on: #5

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

@@ -3,8 +3,8 @@
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-        x:Class="spplus.MainWindow"
-        Title="SP+">
+        x:Class="spplus.MainWindow" WindowState="Maximized" Icon="res/logo.ico"
+        Title="spplus">
     <Border>
         <Grid RowDefinitions="30,*">
             <Menu Background="#50888888">
@@ -12,6 +12,7 @@
                     <!-- <MenuItem Click="MnuSettings_OnClick" x:Name="MnuSettings" Header="Einstellungen" /> -->
                     <!-- <Separator /> -->
                     <MenuItem x:Name="MnuExpSettings" Header="Einstellungen exportieren" Click="MnuExpSettings_OnClick" />
+                    <MenuItem x:Name="MnuImpResult" Header="Berechnung importieren" Click="MnuImpResult_OnClick" />
                     <MenuItem x:Name="MnuExit" Header="Beenden" Click="MnuExit_OnClick"/>
                 </MenuItem>
                 <MenuItem Header="Hilfe">
@@ -20,7 +21,7 @@
                     <MenuItem Header="Über" x:Name="MnuAbout" Click="MnuAbout_OnClick"  />
                 </MenuItem>
             </Menu>
-            <TabControl Grid.Row="1">
+            <TabControl x:Name="TclMainView" Grid.Row="1" TabStripPlacement="Left">
                 <TabItem>
                     <TabItem.Header>
                         <StackPanel Orientation="Horizontal">
@@ -28,7 +29,72 @@
                             <Label FontSize="20" Content="Planung" VerticalContentAlignment="Center" />
                         </StackPanel>
                     </TabItem.Header>
-                    <Grid RowDefinitions="2*,*,*">
+                    <Grid ColumnDefinitions="*,2*" RowDefinitions="*,*">
+                        <Button Grid.RowSpan="2" Margin="0,10,0,0" x:Name="BtnImport" VerticalAlignment="Top" Height="50" HorizontalAlignment="Stretch" Click="BtnImport_OnClick" HorizontalContentAlignment="Center">
+                            <StackPanel Orientation="Horizontal">
+                                <LucideIcon Kind="Import" Width="36" Height="36" />
+                                <Label Content="Importieren..." VerticalContentAlignment="Center" FontSize="15"
+                                       FontWeight="Bold" />
+                            </StackPanel>
+                        </Button>
+                        
+                        <Button Grid.RowSpan="2" Margin="0,00,0,10" x:Name="BtnCraftCourses" VerticalAlignment="Bottom" Height="50" HorizontalAlignment="Stretch" Click="BtnCraftCourses_OnClick" HorizontalContentAlignment="Center">
+                            <StackPanel Orientation="Horizontal">
+                                <LucideIcon Kind="Pickaxe" Width="36" Height="36" />
+                                <Label Content="Kurse basteln" VerticalContentAlignment="Center" FontSize="15"
+                                       FontWeight="Bold" />
+                            </StackPanel>
+                        </Button>
+                        
+                        <ListBox Grid.RowSpan="2" x:Name="LbStudentsImported" SelectionChanged="LbStudentsImported_OnSelectionChanged"  Margin="0,70,0,70" VerticalAlignment="Stretch" HorizontalAlignment="Stretch"></ListBox>
+                        
+                        <StackPanel Grid.Column="1" Grid.Row="0" Margin="10,10,10,10" Orientation="Vertical" Spacing="10">
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="ID"></Label>
+                                <TextBox Grid.Column="1" x:Name="TbStudentID" TextChanged="TbStudentID_OnTextChanged"></TextBox>
+                            </Grid>
+                            
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Name"></Label>
+                                <TextBox Grid.Column="1" x:Name="TbStudentName" TextChanged="TbStudentName_OnTextChanged"></TextBox>
+                            </Grid>
+                            
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Sport 1"></Label>
+                                <Label Grid.Column="1" x:Name="LblSport1"></Label>
+                            </Grid>
+                            
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Sport 2"></Label>
+                                <Label Grid.Column="1" x:Name="LblSport2"></Label>
+                            </Grid>
+                            
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Sport 3"></Label>
+                                <Label Grid.Column="1" x:Name="LblSport3"></Label>
+                            </Grid>
+                            
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Sport 4"></Label>
+                                <Label Grid.Column="1" x:Name="LblSport4"></Label>
+                            </Grid>
+                        </StackPanel>
+                        <StackPanel Grid.Column="1" Grid.Row="1" Margin="10,10,10,10" Orientation="Vertical" Spacing="10">
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Anzahl Einträge"></Label>
+                                <Label Grid.Column="1" x:Name="LblStudentAmount"></Label>
+                            </Grid>
+                            
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Anzahl gewählte Kurse"></Label>
+                                <Label Grid.Column="1" x:Name="LblSelectedAmount"></Label>
+                            </Grid>
+                            
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Wahlzahlen"></Label>
+                                <Label Grid.Column="1" x:Name="LblNumVoted"></Label>
+                            </Grid>
+                        </StackPanel>
                         
 
                     </Grid>
@@ -40,22 +106,169 @@
                             <Label FontSize="20" Content="Kurse" VerticalContentAlignment="Center" />
                         </StackPanel>
                     </TabItem.Header>
-                    <Grid RowDefinitions="2*,*,*">
+                    <Grid ColumnDefinitions="*,2*">
+                        <StackPanel Grid.ColumnSpan="2" Orientation="Horizontal" Spacing="10">
+                            <Button Margin="0,10,0,0" x:Name="BtnImportDefaultCourses" VerticalAlignment="Top" Height="35" HorizontalAlignment="Stretch" Click="BtnImportDefaultCourses_OnClick" HorizontalContentAlignment="Center">
+                                <StackPanel Orientation="Horizontal">
+                                    <LucideIcon Kind="Import" Width="24" Height="24" />
+                                    <Label Content="Standardkurse importieren..." VerticalContentAlignment="Center" FontSize="12"
+                                           FontWeight="Bold" />
+                                </StackPanel>
+                            </Button>
+                            <Button Margin="0,10,0,0" x:Name="BtnDeleteSinleCourse" Background="#99963434" VerticalAlignment="Top" Height="35" HorizontalAlignment="Stretch" Click="BtnDeleteSinleCourse_OnClick" HorizontalContentAlignment="Center">
+                                <StackPanel Orientation="Horizontal">
+                                    <LucideIcon Kind="Trash2" Width="24" Height="24" />
+                                    <Label Content="Ausgewähltes entfernen" VerticalContentAlignment="Center" FontSize="12"
+                                           FontWeight="Bold" />
+                                </StackPanel>
+                            </Button>
+                            <Button Margin="0,10,0,0" x:Name="BtnClearCourseList" Background="#99963434" VerticalAlignment="Top" Height="35" HorizontalAlignment="Stretch" Click="BtnClearCourseList_OnClick" HorizontalContentAlignment="Center">
+                                <StackPanel Orientation="Horizontal">
+                                    <LucideIcon Kind="Trash" Width="24" Height="24" />
+                                    <Label Content="Liste leeren" VerticalContentAlignment="Center" FontSize="12"
+                                           FontWeight="Bold" />
+                                </StackPanel>
+                            </Button>
+                        </StackPanel>
+                        <ListBox Grid.Column="0" x:Name="LbSportCourses" SelectionChanged="LbSportCourses_OnSelectionChanged" Margin="0,55,0,0" />
+                        <StackPanel Grid.Column="1" Grid.Row="0" Margin="10,10,10,10" Orientation="Vertical" Spacing="10">
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="ID"></Label>
+                                <Label Grid.Column="1" x:Name="LblSportID"></Label>
+                            </Grid>
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Name"></Label>
+                                <TextBox Grid.Column="1" x:Name="TbSportName" TextChanged="TbSportName_OnTextChanged"></TextBox>
+                            </Grid>
+                            
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Maximale Schüler*innenanzahl"></Label>
+                                <NumericUpDown Grid.Column="1" x:Name="NudSportMaxStudents" ValueChanged="NudSportMaxStudents_OnValueChanged"></NumericUpDown>
+                            </Grid>
+                            
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Minimale Schüler*innenanzahl"></Label>
+                                <NumericUpDown Grid.Column="1" x:Name="NudSportMinStudents" ValueChanged="NudSportMinStudents_OnValueChanged"></NumericUpDown>
+                            </Grid>
+                            
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Anzahl Angebote Semester 1"></Label>
+                                <NumericUpDown Grid.Column="1" x:Name="NudAmountCoursesSem1" ValueChanged="NudAmountCoursesSem1_OnValueChanged"></NumericUpDown>
+                            </Grid>
+                            
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Anzahl Angebote Semester 2"></Label>
+                                <NumericUpDown Grid.Column="1" x:Name="NudAmountCoursesSem2" ValueChanged="NudAmountCoursesSem2_OnValueChanged"></NumericUpDown>
+                            </Grid>
+                            
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Anzahl Angebote Semester 3"></Label>
+                                <NumericUpDown Grid.Column="1" x:Name="NudAmountCoursesSem3" ValueChanged="NudAmountCoursesSem3_OnValueChanged"></NumericUpDown>
+                            </Grid>
+                            
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Anzahl Angebote Semester 4"></Label>
+                                <NumericUpDown Grid.Column="1" x:Name="NudAmountCoursesSem4" ValueChanged="NudAmountCoursesSem4_OnValueChanged"></NumericUpDown>
+                            </Grid>
                             
                             
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Alternativbezeichnungen"></Label>
+                                <StackPanel Grid.Column="1" Orientation="Vertical">
+                                    <Grid ColumnDefinitions="*,50,50">
+                                        <TextBox Grid.Column="0" Height="35" HorizontalAlignment="Stretch" x:Name="TbSportAlternativeName"></TextBox>
+                                        <Button Grid.Column="1" Margin="5,0,0,0" x:Name="BtnAlternativeNameAdd" VerticalAlignment="Top" Height="35" HorizontalAlignment="Stretch" Click="BtnAlternativeNameAdd_OnClick" HorizontalContentAlignment="Center">
+                                            <StackPanel Orientation="Horizontal">
+                                                <LucideIcon Kind="Plus" Width="24" Height="24" />
+                                            </StackPanel>
+                                        </Button>
+                                        <Button Grid.Column="2" Margin="5,0,0,0" x:Name="BtnAlternativeNameRemove" VerticalAlignment="Top" Height="35" HorizontalAlignment="Stretch" Click="BtnAlternativeNameRemove_OnClick" HorizontalContentAlignment="Center">
+                                            <StackPanel Orientation="Horizontal">
+                                                <LucideIcon Kind="Minus" Width="24" Height="24" />
+                                            </StackPanel>
+                                        </Button>
+                                    </Grid>
+                                    <ListBox Margin="0,5,0,0" x:Name="LbAlternativeNames">
+
+                                    </ListBox>
+                                </StackPanel>
+
+                            </Grid>
+                            <Line />
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Maximale Sportkursanzahl Semester 1"></Label>
+                                <NumericUpDown Grid.Column="1" x:Name="NudSportMaxPerSemester1" ValueChanged="NudSportMaxPerSemester1_OnValueChanged"></NumericUpDown>
+                            </Grid>
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Maximale Sportkursanzahl Semester 2"></Label>
+                                <NumericUpDown Grid.Column="1" x:Name="NudSportMaxPerSemester2" ValueChanged="NudSportMaxPerSemester2_OnValueChanged"></NumericUpDown>
+                            </Grid>
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Maximale Sportkursanzahl Semester 3"></Label>
+                                <NumericUpDown Grid.Column="1" x:Name="NudSportMaxPerSemester3" ValueChanged="NudSportMaxPerSemester3_OnValueChanged"></NumericUpDown>
+                            </Grid>
+                            <Grid ColumnDefinitions="*,3*">
+                                <Label  Content="Maximale Sportkursanzahl Semester 4"></Label>
+                                <NumericUpDown Grid.Column="1" x:Name="NudSportMaxPerSemester4" ValueChanged="NudSportMaxPerSemester4_OnValueChanged"></NumericUpDown>
+                            </Grid>
+                        </StackPanel>
                     </Grid>
                 </TabItem>
                 
-                <TabItem>
+                <TabItem x:Name="TbiResults">
                     <TabItem.Header>
                         <StackPanel Orientation="Horizontal">
                             <LucideIcon Kind="Sparkles" Width="32" Height="32" Size="32" />
                             <Label FontSize="20" Content="Ergebnisse" VerticalContentAlignment="Center" />
                         </StackPanel>
                     </TabItem.Header>
-                    <Grid RowDefinitions="2*,*,*">
-                        
-
+                    <Grid ColumnDefinitions="*,*" RowDefinitions="100,2*,*">
+                        <ListBox Grid.RowSpan="2" x:Name="LbResult" Margin="0,10,10,10" PointerPressed="LbResult_OnPointerPressed">
+                            <ListBox.ContextMenu>
+                                <ContextMenu>
+                                    <MenuItem Header="Ändern" x:Name="MnuChange" />
+                                </ContextMenu>
+                            </ListBox.ContextMenu>
+                        </ListBox>
+                        <Grid Grid.Row="0" Grid.Column="1" RowDefinitions="*,*" ColumnDefinitions="*,*">
+                            <Button Grid.Row="0" Grid.Column="0" Margin="0,10,5,0" x:Name="BtnExportCoursePDF" VerticalAlignment="Top" Height="35" HorizontalAlignment="Stretch" Click="BtnExportCoursePDF_OnClick" HorizontalContentAlignment="Center">
+                                <StackPanel Orientation="Horizontal">
+                                    <LucideIcon Kind="FileText" Width="24" Height="24" />
+                                    <Label Content="Export (PDF)..." VerticalContentAlignment="Center" FontSize="12"
+                                           FontWeight="Bold" />
+                                </StackPanel>
+                            </Button>
+                            <Button Grid.Row="0" Grid.Column="1" Margin="5,10,0,0" x:Name="BtnExportCourseCSV" VerticalAlignment="Top" Height="35" HorizontalAlignment="Stretch" Click="BtnExportCourseCSV_OnClick" HorizontalContentAlignment="Center">
+                                <StackPanel Orientation="Horizontal">
+                                    <LucideIcon Kind="FileJson" Width="24" Height="24" />
+                                    <Label Content="Export (CSV)..." VerticalContentAlignment="Center" FontSize="12"
+                                           FontWeight="Bold" />
+                                </StackPanel>
+                            </Button>
+                            <Button Grid.Row="1" Grid.Column="0" Margin="0,5,5,0" x:Name="BtnExportConfiguration" VerticalAlignment="Top" Height="35" HorizontalAlignment="Stretch" Click="MnuExpSettings_OnClick" HorizontalContentAlignment="Center">
+                                <StackPanel Orientation="Horizontal">
+                                    <LucideIcon Kind="FileJson" Width="24" Height="24" />
+                                    <Label Content="Konfiguration exportieren..." VerticalContentAlignment="Center" FontSize="12"
+                                           FontWeight="Bold" />
+                                </StackPanel>
+                            </Button>
+                            <Button Grid.Row="1" Grid.Column="1" Margin="5,5,0,0" x:Name="BtnImportResults" VerticalAlignment="Top" Height="35" HorizontalAlignment="Stretch" Click="MnuImpResult_OnClick" HorizontalContentAlignment="Center">
+                                <StackPanel Orientation="Horizontal">
+                                    <LucideIcon Kind="Import" Width="24" Height="24" />
+                                    <Label Content="Ergebnisse importieren..." VerticalContentAlignment="Center" FontSize="12"
+                                           FontWeight="Bold" />
+                                </StackPanel>
+                            </Button>
+                        </Grid>
+                        <ScrollViewer Grid.Row="1" Grid.Column="1" Margin="0,5,0,10" Background="#44CCCCCC">
+                            <TextBlock x:Name="TbResultStatistics"></TextBlock>
+                        </ScrollViewer>
+                        <ScrollViewer Grid.Row="2" Grid.Column="1" Margin="0,0,0,10" Background="#44CCCCCC">
+                            <TextBlock x:Name="TbResultTextout" FontFamily="Consolas"></TextBlock>
+                        </ScrollViewer>
+                        <ScrollViewer Grid.Row="2" Grid.Column="0" Margin="0,0,10,10" Background="#44CCCCCC">
+                            <TextBlock x:Name="TbResultLog" FontFamily="Consolas"></TextBlock>
+                        </ScrollViewer>
                     </Grid>
                 </TabItem>
             </TabControl>

MainWindow.axaml.cs

@@ -1,20 +1,151 @@
 using System;
+using System.Collections.Generic;
 using System.Diagnostics;
+using System.Linq;
 using Avalonia.Controls;
+using Avalonia.Input;
 using Avalonia.Interactivity;
+using Avalonia.Platform.Storage;
 
 namespace spplus;
 
 public partial class MainWindow : Window
 {
+    public static MainWindow Instance { get; set; }
+    public static string ApplicationVersion = "v1.2.24";
+
+    private sealed class ResultEntry
+    {
+        public Student Student { get; }
+        public int Semester { get; }
+        public string CourseName { get; }
+
+        public ResultEntry(Student student, int semester, string? courseName)
+        {
+            Student = student;
+            Semester = semester;
+            CourseName = courseName ?? string.Empty;
+        }
+
+        public override string ToString()
+        {
+            return $"{Student.Name} ({Student.ID}) - {Semester}. Semester: {CourseName}";
+        }
+    }
+
     public MainWindow()
     {
         InitializeComponent();
+        Settings.ImportInitial();
+        Instance = this;
+        RefreshCoursesList();
+        try
+        {
+            NudSportMaxPerSemester1.Value = Settings.Instance.NumCoursesPerSemester[0];
+            NudSportMaxPerSemester2.Value = Settings.Instance.NumCoursesPerSemester[1];
+            NudSportMaxPerSemester3.Value = Settings.Instance.NumCoursesPerSemester[2];
+            NudSportMaxPerSemester4.Value = Settings.Instance.NumCoursesPerSemester[3];
+        } catch {}
     }
 
-    private void MnuExpSettings_OnClick(object? sender, RoutedEventArgs e)
+    private void RegenerateContextMenu()
     {
-        var res = MessageBox.Show(this, "Dieses Feature ist noch nicht implementiert", "Fehlend");
+        MnuChange.Items.Clear();
+        foreach (var sport in Settings.Instance.Sports)
+        {
+            var item = new MenuItem { Header = sport.Name };
+            item.Click += (_, _) => ChangeStudentCourse(sport);
+            MnuChange.Items.Add(item);
+        }
+    }
+
+    private void ChangeStudentCourse(Sport targetSport)
+    {
+        if (LbResult.SelectedItem is not ResultEntry selectedEntry)
+            return;
+
+        try
+        {
+            if (ApplyStudentCourseChange(selectedEntry.Student, selectedEntry.Semester, targetSport))
+            {
+                CourseCrafter.ReloadResult();
+                RefreshResultView();
+                RegenerateContextMenu();
+            }
+        }
+        catch (Exception ex)
+        {
+            Console.WriteLine(ex.Message + "\n" + ex.StackTrace);
+        }
+    }
+
+    private bool ApplyStudentCourseChange(Student student, int semester, Sport targetSport)
+    {
+        if (semester < 1 || semester > 4)
+            return false;
+
+        var semesterCourses = CourseCrafter.GeneratedCourses
+            .Where(course => course.Semester == semester)
+            .ToList();
+
+        var currentCourses = semesterCourses
+            .Where(course => course.Instance.Students.Contains(student.ID))
+            .ToList();
+
+        CourseCrafter.CourseInstance? targetCourse = currentCourses
+            .FirstOrDefault(course => course.Instance.Sport.Name == targetSport.Name)
+            .Instance;
+
+        if (targetCourse == null)
+        {
+            targetCourse = semesterCourses
+                .Where(course => course.Instance.Sport.Name == targetSport.Name)
+                .OrderBy(course => course.Instance.Students.Count)
+                .Select(course => course.Instance)
+                .FirstOrDefault();
+        }
+
+        bool changed = false;
+
+        foreach (var course in currentCourses)
+        {
+            if (targetCourse != null && ReferenceEquals(course.Instance, targetCourse))
+                continue;
+
+            if (course.Instance.Students.Remove(student.ID))
+                changed = true;
+        }
+
+        int removedEmptyCourses = CourseCrafter.GeneratedCourses.RemoveAll(course =>
+            course.Semester == semester &&
+            course.Instance.Students.Count == 0 &&
+            !ReferenceEquals(course.Instance, targetCourse));
+        if (removedEmptyCourses > 0)
+            changed = true;
+
+        if (targetCourse == null)
+        {
+            var newCourse = new CourseCrafter.CourseInstance
+            {
+                Sport = targetSport,
+                Students = new List<string> { student.ID }
+            };
+
+            CourseCrafter.GeneratedCourses.Add((semester, newCourse));
+            changed = true;
+        }
+        else if (!targetCourse.Students.Contains(student.ID))
+        {
+            targetCourse.Students.Add(student.ID);
+            changed = true;
+        }
+
+        return changed;
+    }
+
+    private async void MnuExpSettings_OnClick(object? sender, RoutedEventArgs e)
+    {
+        await ExportConfigurationAsync();
     }
 
     private void MnuExit_OnClick(object? sender, RoutedEventArgs e)
@@ -29,7 +160,7 @@ public partial class MainWindow : Window
             Process.Start(new ProcessStartInfo
             {
                 FileName = "https://git.mypapercloud.de/fierke/spplus/wiki",
-                UseShellExecute = true // Wichtig für Plattformübergreifendes Öffnen
+                UseShellExecute = true 
             });
         }
         catch (Exception ex)
@@ -45,7 +176,7 @@ public partial class MainWindow : Window
             Process.Start(new ProcessStartInfo
             {
                 FileName = "https://git.mypapercloud.de/fierke/spplus",
-                UseShellExecute = true // Wichtig für Plattformübergreifendes Öffnen
+                UseShellExecute = true 
             });
         }
         catch (Exception ex)
@@ -57,11 +188,480 @@ public partial class MainWindow : Window
     private void MnuAbout_OnClick(object? sender, RoutedEventArgs e)
     {
         Window w = new();
+        w.WindowState = WindowState.Normal;
+        w.WindowStartupLocation = WindowStartupLocation.CenterScreen;
+        w.Width = 300;
+        w.Height = 120;
         Grid g = new();
-        TextBlock tb = new();
-        tb.Text = "Spplus v1.0.0\n(c)2026 MyPapertown, Elias Fierke";
+        TextBlock tb = new()
+        {
+            Text = $"spplus {MainWindow.ApplicationVersion}\n(c)2026 MyPapertown, Elias Fierke"
+        };
         g.Children.Add(tb);
         w.Content = g;
         w.Show();
     }
+
+    private async void BtnImport_OnClick(object? sender, RoutedEventArgs e)
+    {
+        var topLevel = GetTopLevel(this);
+        var file = await topLevel!.StorageProvider.OpenFilePickerAsync(new FilePickerOpenOptions
+        {
+            Title = "CSV-Datei auswählen",
+            AllowMultiple = false,
+            FileTypeFilter = new[]
+            {
+                new FilePickerFileType(".csv-Datei")
+                {
+                    Patterns = new[] { "*.csv" }
+                }
+            }
+        });
+
+        if (file == null) return;
+        if (file.Count == 0) return;
+
+        var imported_students = import.ImportStudentsFromFile(file[0].Path.LocalPath.ToString());
+        foreach (var s in imported_students)
+        {
+            Settings.Instance.Students.Add(s);
+        }
+        RefreshImportedStudentList();
+
+    }
+
+    private void RefreshImportedStudentList()
+    {
+        LbStudentsImported.Items.Clear();
+        int count_selected = 0;
+        foreach (var s in Settings.Instance.Students)
+        {
+            LbStudentsImported.Items.Add(s);
+            count_selected += s.SelectedCourseNames.Count;
+        }
+        LblStudentAmount.Content =  Settings.Instance.Students.Count.ToString();
+        LblSelectedAmount.Content =  count_selected.ToString();
+        
+        List<(Sport, List<string>)> initial_sportlist = new();
+        foreach (var sp in Settings.Instance.Sports)
+        {
+            initial_sportlist.Add((sp, new()));
+        }
+        foreach (Student s in Settings.Instance.Students)
+        {
+            foreach (var sp in s.SelectedCourseNames)
+            {
+                foreach (var item in initial_sportlist)
+                {
+                    if (item.Item1.AlternativeNames.Contains(sp))
+                    {
+                        item.Item2.Add(s.ID);
+                        break;
+                    }
+                }
+            }
+        }
+
+        LblNumVoted.Content = "";
+        foreach (var s in initial_sportlist)
+        {
+            LblNumVoted.Content += $"{s.Item1.Name}: {s.Item2.Count}\n";
+        }
+        
+    }
+
+    private void BtnCraftCourses_OnClick(object? sender, RoutedEventArgs e)
+    {
+        CourseCrafter.Craft();
+        RefreshResultView();
+        TclMainView.SelectedIndex = 2;
+        //TbiResults.Focus();
+    }
+
+    private void LbResult_OnPointerPressed(object? sender, PointerPressedEventArgs e)
+    {
+        if (!e.GetCurrentPoint(LbResult).Properties.IsRightButtonPressed)
+            return;
+
+        if (e.Source is Control control && control.DataContext is ResultEntry entry)
+        {
+            LbResult.SelectedItem = entry;
+        }
+        else
+        {
+            LbResult.SelectedItem = null;
+        }
+    }
+
+    private void RefreshResultView()
+    {
+        LbResult.Items.Clear();
+        foreach (Student s in Settings.Instance.Students)
+        {
+            try
+            {
+                for(int i = 0; i<s.Result.Length;i++)
+                {
+                    LbResult.Items.Add(new ResultEntry(s, i + 1, s.Result[i]));
+                }
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine(ex.StackTrace);
+            }
+        }
+        
+        TbResultStatistics.Text = CourseCrafter.GenerateStatistics();
+    }
+
+    private void LbStudentsImported_OnSelectionChanged(object? sender, SelectionChangedEventArgs e)
+    {
+        Prepare();
+        var stud = (Student)LbStudentsImported.SelectedItem;
+        if (stud == null)
+        {
+            TbStudentName.Text = string.Empty;
+            TbStudentID.Text = string.Empty;
+            SetEmpty();
+            return;
+        };
+
+        try
+        {
+            TbStudentName.Text = stud.Name;
+            TbStudentID.Text = stud.ID;
+            LblSport1.Content = stud.SelectedCourseNames[0];
+            LblSport2.Content = stud.SelectedCourseNames[1];
+            LblSport3.Content = stud.SelectedCourseNames[2];
+            LblSport4.Content = stud.SelectedCourseNames[3];
+        }
+        catch
+        {
+            SetEmpty();
+        }
+
+        return;
+        
+        void SetEmpty()
+        {
+            if(LblSport1.Content == "null") LblSport1.Content = "ungewählt";
+            if(LblSport2.Content == "null") LblSport2.Content = "ungewählt";
+            if(LblSport3.Content == "null") LblSport3.Content = "ungewählt";
+            if(LblSport4.Content == "null") LblSport4.Content = "ungewählt";
+        }
+
+        void Prepare()
+        {
+            LblSport1.Content = "null";
+            LblSport2.Content = "null";
+            LblSport3.Content = "null";
+            LblSport4.Content = "null";
+        }
+        
+    }
+
+    private void TbStudentName_OnTextChanged(object? sender, TextChangedEventArgs e)
+    {
+        try
+        {
+            ((Student)LbStudentsImported.SelectedItem).Name = TbStudentName.Text;
+        }
+        catch
+        {
+            
+        }
+    }
+    private void TbStudentID_OnTextChanged(object? sender, TextChangedEventArgs e)
+    {
+        try
+        {
+            ((Student)LbStudentsImported.SelectedItem).ID = TbStudentID.Text;
+        }
+        catch
+        {
+            
+        }
+    }
+
+    private void BtnImportDefaultCourses_OnClick(object? sender, RoutedEventArgs e)
+    {
+        Settings.ImportInitial();
+        RefreshCoursesList();
+    }
+
+    private void RefreshCoursesList()
+    {
+        LbSportCourses.Items.Clear();
+        foreach (var sp in Settings.Instance.Sports)
+        {
+            LbSportCourses.Items.Add(sp);
+        }
+        RegenerateContextMenu();
+    }
+
+
+    private void LbSportCourses_OnSelectionChanged(object? sender, SelectionChangedEventArgs e)
+    {
+        if (LbSportCourses.SelectedItem != null)
+        {
+            if (LbSportCourses.SelectedItem is Sport item)
+            {
+                LblSportID.Content = item.ID;
+                TbSportName.Text = item.Name;
+                NudSportMaxStudents.Value = item.MaxStudents;
+                NudSportMinStudents.Value = item.MinStudents;
+                NudAmountCoursesSem1.Value = item.Semester[0];
+                NudAmountCoursesSem2.Value = item.Semester[1];
+                NudAmountCoursesSem3.Value = item.Semester[2];
+                NudAmountCoursesSem4.Value = item.Semester[3];
+                // LbAlternativeCourses.Items.Clear();
+                // foreach (var alternative in item.AlternativeCourses)
+                // {
+                //     LbAlternativeCourses.Items.Add(Settings.GetSportNameFromID(alternative));
+                // }
+                LbAlternativeNames.Items.Clear();
+                foreach (var alternative in item.AlternativeNames)
+                {
+                    LbAlternativeNames.Items.Add(alternative);
+                }
+            }
+        }
+    }
+
+    private void TbSportName_OnTextChanged(object? sender, TextChangedEventArgs e)
+    {
+        try
+        {
+            ((Sport)LbSportCourses.SelectedItem).Name = TbSportName.Text;
+            RegenerateContextMenu();
+        } catch {}
+    }
+
+    private void NudSportMaxStudents_OnValueChanged(object? sender, NumericUpDownValueChangedEventArgs e)
+    {
+        try
+        {
+            ((Sport)LbSportCourses.SelectedItem).MaxStudents = Convert.ToInt32(NudSportMaxStudents.Value);
+        } catch {}
+    }
+
+    private void NudSportMinStudents_OnValueChanged(object? sender, NumericUpDownValueChangedEventArgs e)
+    {
+        try
+        {
+            ((Sport)LbSportCourses.SelectedItem).MinStudents = Convert.ToInt32(NudSportMinStudents.Value);
+        } catch {}
+    }
+
+    private void NudAmountCoursesSem1_OnValueChanged(object? sender, NumericUpDownValueChangedEventArgs e)
+    {
+        try
+        {
+            ((Sport)LbSportCourses.SelectedItem).Semester[0] = Convert.ToInt32(NudAmountCoursesSem1.Value);
+        } catch {}
+    }
+
+    private void NudAmountCoursesSem2_OnValueChanged(object? sender, NumericUpDownValueChangedEventArgs e)
+    {
+        try
+        {
+            ((Sport)LbSportCourses.SelectedItem).Semester[1] = Convert.ToInt32(NudAmountCoursesSem2.Value);
+        } catch {}
+    }
+
+    private void NudAmountCoursesSem3_OnValueChanged(object? sender, NumericUpDownValueChangedEventArgs e)
+    {
+        try
+        {
+            ((Sport)LbSportCourses.SelectedItem).Semester[2] = Convert.ToInt32(NudAmountCoursesSem3.Value);
+        } catch {}
+    }
+
+    private void NudAmountCoursesSem4_OnValueChanged(object? sender, NumericUpDownValueChangedEventArgs e)
+    {
+        try
+        {
+            ((Sport)LbSportCourses.SelectedItem).Semester[3] = Convert.ToInt32(NudAmountCoursesSem4.Value);
+        } catch {}
+    }
+
+    private void BtnAlternativeCourseAdd_OnClick(object? sender, RoutedEventArgs e)
+    {
+        try
+        {
+            //((Sport)LbSportCourses.SelectedItem).AlternativeNames.Add(TbSportAlternativeName.Text);
+            //TbSportAlternativeCourse.Text = "";
+        } catch {}
+    }
+
+    private void BtnAlternativeNameAdd_OnClick(object? sender, RoutedEventArgs e)
+    {
+        try
+        {
+            ((Sport)LbSportCourses.SelectedItem).AlternativeNames.Add(TbSportAlternativeName.Text);
+            LbAlternativeNames.Items.Add(TbSportAlternativeName.Text);
+            TbSportAlternativeName.Text = "";
+            
+            int curr_selected = LbSportCourses.SelectedIndex; 
+            RefreshCoursesList();
+            LbSportCourses.SelectedIndex = curr_selected;
+        } catch {}
+    }
+
+    private void BtnAlternativeNameRemove_OnClick(object? sender, RoutedEventArgs e)
+    {
+        //try
+        //{
+            LbAlternativeNames.Items.Remove(LbAlternativeNames.SelectedItem);
+            ((Sport)LbSportCourses.SelectedItem).AlternativeNames.Clear();
+            foreach (string s in LbAlternativeNames.Items)
+            {
+                ((Sport)LbSportCourses.SelectedItem).AlternativeNames.Add(s);
+            }
+
+            int curr_selected = LbSportCourses.SelectedIndex; 
+            RefreshCoursesList();
+            LbSportCourses.SelectedIndex = curr_selected;
+            //} catch (Exception ex) {}
+    }
+
+    private async void BtnClearCourseList_OnClick(object? sender, RoutedEventArgs e)
+    {
+        var result = await MessageBox.Show(this,
+            "Möchten Sie wirklich alle Kurse löschen?\n Dies kann nicht rückgängig gemacht werden.",
+            "Wirklich fortfahren?", MessageBoxButton.YesNo);
+        if (result == MessageBoxResult.Yes)
+        {
+            Settings.Instance.Sports.Clear();
+            RefreshCoursesList();    
+        }
+        
+    }
+
+    private void BtnDeleteSinleCourse_OnClick(object? sender, RoutedEventArgs e)
+    {
+        try
+        {
+            Settings.Instance.Sports.Remove(LbSportCourses.SelectedItem as Sport);
+            RefreshCoursesList();
+        } catch (Exception ex){}
+    }
+
+    private async void BtnExportCoursePDF_OnClick(object? sender, RoutedEventArgs e)
+    {
+        var topLevel = GetTopLevel(this);
+        var file = await topLevel!.StorageProvider.SaveFilePickerAsync(new FilePickerSaveOptions
+        {
+            Title = "PDF-Datei speichern",
+            SuggestedFileName = "spplus_kurse.pdf",
+            SuggestedFileType = new FilePickerFileType(".pdf-Datei")
+            {
+                Patterns = new[] { "*.pdf" }
+            }
+        });
+
+        if (file == null) return;
+
+        PdfExportUtility.ExportGeneratedCourses(file.Path.LocalPath);
+    }
+
+    private void NudSportMaxPerSemester1_OnValueChanged(object? sender, NumericUpDownValueChangedEventArgs e)
+    {
+        try
+        {
+            Settings.Instance.NumCoursesPerSemester[0] = Convert.ToInt32(NudSportMaxPerSemester1.Value);
+        } catch {}
+    }
+    
+    private void NudSportMaxPerSemester2_OnValueChanged(object? sender, NumericUpDownValueChangedEventArgs e)
+    {
+        try
+        {
+            Settings.Instance.NumCoursesPerSemester[1] = Convert.ToInt32(NudSportMaxPerSemester2.Value);
+        } catch {}
+    }
+    
+    private void NudSportMaxPerSemester3_OnValueChanged(object? sender, NumericUpDownValueChangedEventArgs e)
+    {
+        try
+        {
+            Settings.Instance.NumCoursesPerSemester[2] = Convert.ToInt32(NudSportMaxPerSemester3.Value);
+        } catch {}
+    }
+    
+    private void NudSportMaxPerSemester4_OnValueChanged(object? sender, NumericUpDownValueChangedEventArgs e)
+    {
+        try
+        {
+            Settings.Instance.NumCoursesPerSemester[3] = Convert.ToInt32(NudSportMaxPerSemester4.Value);
+        } catch {}
+    }
+
+    private async void BtnExportCourseCSV_OnClick(object? sender, RoutedEventArgs e)
+    {
+        var topLevel = GetTopLevel(this);
+        var file = await topLevel!.StorageProvider.SaveFilePickerAsync(new FilePickerSaveOptions
+        {
+            Title = "CSV-Datei speichern",
+            SuggestedFileName = "spplus_ergebnisse.json",
+            SuggestedFileType = new FilePickerFileType(".json-Datei")
+            {
+                Patterns = new[] { "*.json" }
+            }
+            
+        });
+
+        if (file == null) return;
+
+        ExportUtility.ExportResultsToJson(file.Path.LocalPath);
+
+    }
+
+    private async void MnuImpResult_OnClick(object? sender, RoutedEventArgs e)
+    {
+        var topLevel = GetTopLevel(this);
+        var file = await topLevel!.StorageProvider.OpenFilePickerAsync(new FilePickerOpenOptions
+        {
+            Title = "Ergebnis-CSV laden",
+            AllowMultiple = false,
+            FileTypeFilter = new[]
+            {
+                new FilePickerFileType(".json-Datei")
+                {
+                    Patterns = new[] { "*.json" }
+                }
+            }
+        });
+
+        if (file == null || file.Count == 0) return;
+
+        var imported = import.ImportResultFromJson(file[0].Path.LocalPath.ToString());
+        if (imported != null && imported.Count > 0)
+        {
+            CourseCrafter.GeneratedCourses = imported
+                .OrderBy(c => c.Semester)
+                .ThenBy(c => c.Instance.Sport.Name)
+                .ToList();
+            CourseCrafter.ReloadResult();
+            RefreshResultView();
+        }
+    }
+
+    private async System.Threading.Tasks.Task ExportConfigurationAsync()
+    {
+        var topLevel = GetTopLevel(this);
+        var file = await topLevel!.StorageProvider.SaveFilePickerAsync(new FilePickerSaveOptions
+        {
+            Title = "Konfiguration speichern",
+            SuggestedFileName = "spplus_konfiguration.json",
+            SuggestedFileType = new FilePickerFileType(".json-Datei")
+            {
+                Patterns = new[] { "*.json" }
+            }
+        });
+
+        if (file == null) return;
+
+        ExportUtility.ExportConfigurationToJson(file.Path.LocalPath);
+    }
 }

MessageBox.axaml

@@ -2,8 +2,8 @@
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-        mc:Ignorable="d" SizeToContent="WidthAndHeight"
-        x:Class="spplus.MessageBox"
+        mc:Ignorable="d" SizeToContent="WidthAndHeight" Icon="res/logo.ico"
+        x:Class="spplus.MessageBox" WindowStartupLocation="CenterScreen"
         Title="MessageBox">
     <StackPanel>
         <TextBlock Name="Text" Margin="10" TextWrapping="Wrap" />

PdfExportUtility.cs

@@ -0,0 +1,521 @@
+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;
+        }
+
+        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("Inkludiert nur SuS, 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 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;
+    }
+}

Program.cs

@@ -1,5 +1,7 @@
 using Avalonia;
 using System;
+using PdfSharp;
+using PdfSharp.Fonts;
 
 namespace spplus;
 
@@ -9,8 +11,14 @@ class Program
     // SynchronizationContext-reliant code before AppMain is called: things aren't initialized
     // yet and stuff might break.
     [STAThread]
-    public static void Main(string[] args) => BuildAvaloniaApp()
-        .StartWithClassicDesktopLifetime(args);
+    public static void Main(string[] args)
+    {
+        // Initialize PdfSharp font resolver before any PDF operations
+        GlobalFontSettings.FontResolver = new CustomFontResolver();
+        
+        BuildAvaloniaApp()
+            .StartWithClassicDesktopLifetime(args);
+    }
 
     // Avalonia configuration, don't remove; also used by visual designer.
     public static AppBuilder BuildAvaloniaApp()

README.md

@@ -1,13 +1,19 @@
 # SP+
 
-Interaktiver Sportkursplaner für Oberstufen auf Basis einer Sportkurswahl durch SuS.
+Plattformunabhängiger (Windows, Linux, Mac), interaktiver Sportkursplaner für Oberstufen auf Basis einer Sportkurswahl durch SuS.
 
-## (future) Features
-* Import von CSV-Dateien mit Kurswahl
-* Wahlansicht 
-* Statistiken
-* Pflege von Sportkursen (inkl. Kürzel/ alternativen Bezeichnungen)
-* Fehleransicht für nicht-existente, aber gewählte Kurse
+![spplus-Hauptbildschirm](img/spplus_planung.png)
+
+## Features
+* \+ Import von CSV-Dateien mit Kurswahl
+* \+ Wahlansicht 
+* \+ Statistiken
+* \+ Pflege von Sportkursen (inkl. Kürzel/ alternativen Bezeichnungen)
+* \+ CSV-Export
+* ~ Fehleransicht für nicht-existente, aber gewählte Kurse
+* ~ PDF-Export
+
+\+ Vorhanden, ~ Pending
 
 ## Nutzung
 * Build from source: 
@@ -17,3 +23,5 @@ Interaktiver Sportkursplaner für Oberstufen auf Basis einer Sportkurswahl durch
     * Suche `spplus` bzw. `spplus.exe` und führe aus
     * Linux/MacOS evl.: `chmod +x spplus`
 
+
+![spplus-Sportkursübersicht](img/spplus_sport.png)

crafter.cs

@@ -0,0 +1,914 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace spplus;
+
+public class CourseCrafter
+{
+    public class CourseInstance
+    {
+        public Sport Sport = null!;
+        public int Remaining;
+        public List<string> Students = new();
+    }
+    public static List<(int Semester, CourseInstance Instance)> GeneratedCourses 
+        = new();
+
+    private static Sport? ResolveSportFromCourseName(string courseName)
+    {
+        if (string.IsNullOrWhiteSpace(courseName) ||
+            string.Equals(courseName, "null", StringComparison.OrdinalIgnoreCase))
+        {
+            return null;
+        }
+
+        return Settings.Instance.Sports.FirstOrDefault(sport =>
+            string.Equals(sport.Name, courseName, StringComparison.OrdinalIgnoreCase) ||
+            sport.AlternativeNames.Any(alt => string.Equals(alt, courseName, StringComparison.OrdinalIgnoreCase)));
+    }
+
+    public static void RebuildGeneratedCoursesFromResults(IEnumerable<Student> importedResults)
+    {
+        var importedById = importedResults
+            .Where(student => !string.IsNullOrWhiteSpace(student.ID))
+            .GroupBy(student => student.ID, StringComparer.OrdinalIgnoreCase)
+            .ToDictionary(group => group.Key, group => group.First(), StringComparer.OrdinalIgnoreCase);
+
+        var generatedCourses = new Dictionary<(int Semester, string SportName), CourseInstance>();
+
+        foreach (var student in Settings.Instance.Students)
+        {
+            if (!importedById.TryGetValue(student.ID, out var importedStudent))
+                continue;
+
+            for (int semesterIndex = 0; semesterIndex < 4; semesterIndex++)
+            {
+                if (importedStudent.Result.Length <= semesterIndex)
+                    continue;
+
+                var resultName = importedStudent.Result[semesterIndex];
+                var sport = ResolveSportFromCourseName(resultName);
+                if (sport == null)
+                    continue;
+
+                var key = (semesterIndex + 1, sport.Name);
+                if (!generatedCourses.TryGetValue(key, out var course))
+                {
+                    course = new CourseInstance
+                    {
+                        Sport = sport,
+                        Students = new List<string>()
+                    };
+                    generatedCourses[key] = course;
+                }
+
+                if (!course.Students.Contains(student.ID))
+                    course.Students.Add(student.ID);
+            }
+        }
+
+        GeneratedCourses = generatedCourses
+            .Select(entry => (Semester: entry.Key.Semester, Instance: entry.Value))
+            .OrderBy(course => course.Semester)
+            .ThenBy(course => course.Instance.Sport.Name)
+            .ToList();
+    }
+
+    public static void Craft()
+{
+    GeneratedCourses = new();
+    int globalCount = 0;
+    List<(Sport, List<string>)> initial_sportlist = new();
+    List<string>[] students_in_semester = new List<string>[4] { new(), new(), new(), new() };
+    foreach (var sp in Settings.Instance.Sports)
+    {
+        initial_sportlist.Add((sp, new()));
+    }
+
+    foreach (Student s in Settings.Instance.Students)
+    {
+        foreach (var sp in s.SelectedCourseNames)
+        {
+            foreach (var item in initial_sportlist)
+            {
+                if (item.Item1.AlternativeNames.Contains(sp))
+                {
+                    item.Item2.Add(s.ID);
+                    break;
+                }
+            }
+        }
+    }
+
+    while (!requestExit())
+    {
+        Console.WriteLine($"Calculating... ({globalCount})");
+        foreach (var item in initial_sportlist)
+        {
+            if (item.Item2.Count >= item.Item1.MinStudents)
+            {
+                int semester = getSemesterForSport(item.Item1, item.Item2);
+                if (semester <= 0) goto semeq0;
+                var inst = new CourseInstance();
+                inst.Sport = item.Item1;
+                inst.Students = new List<string>();
+                for (int i = item.Item2.Count - 1; i >= 0; i--)
+                {
+                    if (inst.Students.Count >= inst.Sport.MaxStudents)
+                        break;
+
+                    string stud = item.Item2[i];
+
+                    if (!students_in_semester[semester - 1].Contains(stud))
+                    {
+                        inst.Students.Add(stud);
+                        students_in_semester[semester - 1].Add(stud);
+                        item.Item2.RemoveAt(i);
+                    }
+                }
+                if (inst.Students.Count < getEffectiveMinStudents(inst.Sport, semester))
+                {
+                    // Rückgängig machen
+                    foreach (var s in inst.Students)
+                    {
+                        students_in_semester[semester - 1].Remove(s);
+                        item.Item2.Add(s);
+                    }
+                    continue; // Kurs nicht erstellen
+                }
+                GeneratedCourses.Add((semester, inst));
+            }
+
+            semeq0: ;
+        }
+    }
+
+    FillExistingCourses();
+
+    // Kurs umdisponieren (besser verteilen)
+    bool changed;
+    int maxIterations = 20;
+    int iteration = 0;
+
+    do
+    {
+        changed = false;
+        iteration++;
+
+        var sports = GeneratedCourses
+            .GroupBy(c => c.Instance.Sport.Name);
+
+        foreach (var sportGroup in sports)
+        {
+            var courses = sportGroup.ToList();
+
+            for (int i = 0; i < courses.Count; i++)
+            {
+                for (int j = 0; j < courses.Count; j++)
+                {
+                    if (i == j) continue;
+
+                    var cA = courses[i];
+                    var cB = courses[j];
+
+                    if (cA.Instance.Students.Count <= cB.Instance.Students.Count + 1)
+                        continue;
+
+                    for (int k = cA.Instance.Students.Count - 1; k >= 0; k--)
+                    {
+                        string stud = cA.Instance.Students[k];
+
+                        if (!isStudentFree(cB.Semester, stud))
+                            continue;
+
+                        if (cB.Instance.Students.Count >= cB.Instance.Sport.MaxStudents)
+                            continue;
+
+                        // Quellkurs darf nicht unter effektives Min fallen
+                        if (cA.Instance.Students.Count - 1 < getEffectiveMinStudents(cA.Instance.Sport, cA.Semester))
+                            continue;
+
+                        cA.Instance.Students.RemoveAt(k);
+                        students_in_semester[cA.Semester - 1].Remove(stud);
+
+                        cB.Instance.Students.Add(stud);
+                        students_in_semester[cB.Semester - 1].Add(stud);
+
+                        changed = true;
+                        break;
+                    }
+                }
+            }
+        }
+
+    } while (changed && iteration < maxIterations);
+
+    // --- Kurse nachträglich aufteilen, um NumCoursesPerSemester exakt zu erreichen ---
+    for (int semester = 1; semester <= 4; semester++)
+    {
+        int cancel = 0;
+        while (GeneratedCourses.Count(c => c.Semester == semester) < Settings.Instance.NumCoursesPerSemester[semester-1])
+        {
+            cancel++;
+            if (cancel >= 20) break;
+
+            var candidate = GeneratedCourses
+                .Where(c => c.Semester == semester)
+                .Where(c => c.Instance.Students.Count >= getEffectiveMinStudents(c.Instance.Sport, c.Semester) * 2)
+                .Where(c =>
+                {
+                    int sportCount = GeneratedCourses.Count(g =>
+                        g.Semester == semester &&
+                        g.Instance.Sport.Name == c.Instance.Sport.Name);
+
+                    int allowed = c.Instance.Sport.Semester[semester - 1];
+                    return sportCount < allowed;
+                })
+                .OrderByDescending(c => c.Instance.Students.Count)
+                .FirstOrDefault();
+
+            if (candidate.Instance == null)
+                break;
+
+            var students = candidate.Instance.Students;
+            int totalStudents = students.Count;
+            int movedCount = totalStudents / 2;
+            int remainingCount = totalStudents - movedCount;
+
+            if (movedCount < getEffectiveMinStudents(candidate.Instance.Sport, candidate.Semester) ||
+                remainingCount < getEffectiveMinStudents(candidate.Instance.Sport, candidate.Semester))
+            {
+                break;
+            }
+
+            var newCourse = new CourseInstance
+            {
+                Sport = candidate.Instance.Sport,
+                Students = new List<string>()
+            };
+
+            var moved = students
+                .Skip(remainingCount)
+                .Take(movedCount)
+                .ToList();
+
+            foreach (var s in moved)
+            {
+                candidate.Instance.Students.Remove(s);
+                newCourse.Students.Add(s);
+            }
+
+            GeneratedCourses.Add((semester, newCourse));
+        }
+    }
+
+    bool rescueChanged;
+    do
+    {
+        rescueChanged = FillExistingCourses();
+
+        foreach (var item in initial_sportlist)
+        {
+            if (TryCreateRescueCourse(item.Item1, item.Item2))
+            {
+                rescueChanged = true;
+            }
+        }
+    } while (rescueChanged);
+
+    OptimizeStudentWishCoverage();
+
+    // --- Ringtausch: Schüler mit 4 Wünschen aber < 4 Zuteilungen neu zuordnen ---
+    foreach (var student in Settings.Instance.Students)
+    {
+        if (student.SelectedCourseNames.Count < 4)
+            continue;
+
+        var currentAssignments = GetAssignmentsBySemester(student.ID);
+        int currentCount = currentAssignments.Count(a => a != null);
+
+        if (currentCount >= 4)
+            continue;
+
+        // Alle aktuellen Zuteilungen entfernen (temporär)
+        foreach (var assignment in currentAssignments)
+        {
+            if (assignment == null) continue;
+            assignment.Value.Instance.Students.Remove(student.ID);
+            students_in_semester[assignment.Value.Semester - 1].Remove(student.ID);
+        }
+
+        // Alle gewünschten Sports ermitteln
+        var desiredSports = student.SelectedCourseNames
+            .Select(ResolveSportFromSelection)
+            .Where(s => s != null)
+            .DistinctBy(s => s!.Name)
+            .Select(s => s!)
+            .ToList();
+
+        // Kandidatenkurse pro Semester: Kurse mit freiem Platz, die einem Wunschsport entsprechen
+        var candidatesPerSemester = new List<(int Semester, CourseInstance Instance)>[4];
+        for (int si = 0; si < 4; si++)
+        {
+            candidatesPerSemester[si] = GeneratedCourses
+                .Where(c => c.Semester == si + 1)
+                .Where(c => c.Instance.Students.Count < c.Instance.Sport.MaxStudents)
+                .Where(c => desiredSports.Any(ds => ds.Name == c.Instance.Sport.Name))
+                .ToList();
+            candidatesPerSemester[si].Insert(0, default); // default = kein Kurs
+        }
+
+        (int Semester, CourseInstance Instance)?[] bestAssignment = currentAssignments;
+        int bestScore = currentCount;
+
+        int s0 = candidatesPerSemester[0].Count;
+        int s1 = candidatesPerSemester[1].Count;
+        int s2 = candidatesPerSemester[2].Count;
+        int s3 = candidatesPerSemester[3].Count;
+
+        var sportSelectedCounts = student.SelectedCourseNames
+            .Select(ResolveSportFromSelection)
+            .Where(sp => sp != null)
+            .GroupBy(sp => sp!.Name)
+            .ToDictionary(g => g.Key, g => g.Count());
+
+        for (int i0 = 0; i0 < s0; i0++)
+        for (int i1 = 0; i1 < s1; i1++)
+        for (int i2 = 0; i2 < s2; i2++)
+        for (int i3 = 0; i3 < s3; i3++)
+        {
+            var c0 = candidatesPerSemester[0][i0];
+            var c1 = candidatesPerSemester[1][i1];
+            var c2 = candidatesPerSemester[2][i2];
+            var c3 = candidatesPerSemester[3][i3];
+
+            var chosen = new (int Semester, CourseInstance Instance)?[]
+            {
+                c0.Instance != null ? (c0.Semester, c0.Instance) : null,
+                c1.Instance != null ? (c1.Semester, c1.Instance) : null,
+                c2.Instance != null ? (c2.Semester, c2.Instance) : null,
+                c3.Instance != null ? (c3.Semester, c3.Instance) : null
+            };
+
+            bool valid = true;
+            var sportUsageCounts = new Dictionary<string, int>();
+
+            for (int si = 0; si < 4; si++)
+            {
+                if (chosen[si] == null) continue;
+                string sportName = chosen[si]!.Value.Instance.Sport.Name;
+                sportUsageCounts.TryGetValue(sportName, out int used);
+                int allowed = sportSelectedCounts.GetValueOrDefault(sportName, 0);
+                if (used >= allowed) { valid = false; break; }
+                sportUsageCounts[sportName] = used + 1;
+            }
+
+            if (!valid) continue;
+
+            int score = chosen.Count(c => c != null);
+            if (score > bestScore)
+            {
+                bestScore = score;
+                bestAssignment = chosen;
+            }
+        }
+
+        // Beste Zuteilung anwenden
+        foreach (var assignment in bestAssignment)
+        {
+            if (assignment == null) continue;
+            assignment.Value.Instance.Students.Add(student.ID);
+            students_in_semester[assignment.Value.Semester - 1].Add(student.ID);
+        }
+    }
+
+    // ---------------------------------------------------------------------------
+    // Lokale Hilfsfunktionen
+    // ---------------------------------------------------------------------------
+
+    int getEffectiveMinStudents(Sport sport, int semester)
+    {
+        int reduction = (semester >= 3) ? 2 : 0;
+        return Math.Max(1, sport.MinStudents - reduction);
+    }
+
+    bool isStudentFree(int semester, string studentID)
+    {
+        foreach (var inst in GeneratedCourses)
+        {
+            if (semester != inst.Semester) continue;
+            foreach (string stud in inst.Instance.Students)
+            {
+                if (stud == studentID) return false;
+            }
+        }
+        return true;
+    }
+
+    bool requestExit()
+    {
+        globalCount++;
+        int sum = Settings.Instance.NumCoursesPerSemester[0] + Settings.Instance.NumCoursesPerSemester[1] +
+                  Settings.Instance.NumCoursesPerSemester[2] + Settings.Instance.NumCoursesPerSemester[3];
+        if (GeneratedCourses.Count >= sum) return true;
+
+        int low = 0;
+        foreach (var item in initial_sportlist)
+        {
+            if (item.Item2.Count < item.Item1.MinStudents) low++;
+        }
+
+        if (low >= initial_sportlist.Count) return true;
+        if (globalCount >= 20) return true;
+        return false;
+    }
+
+    int total_missing = 0;
+    foreach (var tuple in initial_sportlist)
+    {
+        int[] missingPerSemester = new int[4];
+        foreach (var studentId in tuple.Item2.Distinct())
+        {
+            for (int semesterIndex = 0; semesterIndex < 4; semesterIndex++)
+            {
+                if (!students_in_semester[semesterIndex].Contains(studentId))
+                {
+                    missingPerSemester[semesterIndex]++;
+                    total_missing++;
+                }
+            }
+        }
+
+        MainWindow.Instance.TbResultTextout.Text +=
+            $"{tuple.Item1}: {tuple.Item2.Count} remaining ({missingPerSemester[0]},{missingPerSemester[1]},{missingPerSemester[2]},{missingPerSemester[3]})\n";
+    }
+    MainWindow.Instance.TbResultTextout.Text += $"\n total remaining: {total_missing}";
+
+    bool FillExistingCourses()
+    {
+        bool changed = false;
+
+        foreach (var item in initial_sportlist)
+        {
+            if (item.Item2.Count == 0)
+                continue;
+
+            foreach (var ci in GeneratedCourses
+                         .Where(ci => ci.Instance.Sport.Name == item.Item1.Name)
+                         .OrderBy(ci => ci.Instance.Students.Count))
+            {
+                int semester = ci.Semester;
+                List<string> added = new();
+
+                foreach (string stud in item.Item2)
+                {
+                    if (ci.Instance.Students.Count >= ci.Instance.Sport.MaxStudents)
+                        break;
+
+                    if (students_in_semester[semester - 1].Contains(stud))
+                        continue;
+
+                    ci.Instance.Students.Add(stud);
+                    students_in_semester[semester - 1].Add(stud);
+                    added.Add(stud);
+                }
+
+                foreach (string s in added)
+                {
+                    item.Item2.Remove(s);
+                    changed = true;
+                }
+            }
+        }
+
+        return changed;
+    }
+
+    bool TryCreateRescueCourse(Sport sport, List<string> remainingStudents)
+    {
+        if (remainingStudents.Count == 0)
+            return false;
+
+        for (int semester = 1; semester <= 4; semester++)
+        {
+            int semesterIndex = semester - 1;
+
+            if (sport.Semester[semesterIndex] == 0)
+                continue;
+
+            int sportCoursesInSemester = GeneratedCourses.Count(c =>
+                c.Semester == semester && c.Instance.Sport.Name == sport.Name);
+            if (sportCoursesInSemester >= sport.Semester[semesterIndex])
+                continue;
+
+            if (GeneratedCourses.Count(c => c.Semester == semester) >= Settings.Instance.NumCoursesPerSemester[semester-1])
+                continue;
+
+            var directlyPlaceable = remainingStudents
+                .Distinct()
+                .Where(studentId => !students_in_semester[semesterIndex].Contains(studentId))
+                .ToList();
+
+            var donorMoves = new List<((int Semester, CourseInstance Instance) Course, string StudentId)>();
+            foreach (var course in GeneratedCourses
+                         .Where(c => c.Instance.Sport.Name == sport.Name && c.Semester != semester)
+                         .OrderByDescending(c => c.Instance.Students.Count))
+            {
+                int movableCount = course.Instance.Students.Count - getEffectiveMinStudents(sport, course.Semester);
+                if (movableCount <= 0)
+                    continue;
+
+                foreach (var studentId in course.Instance.Students.ToList())
+                {
+                    if (movableCount <= 0)
+                        break;
+
+                    if (students_in_semester[semesterIndex].Contains(studentId))
+                        continue;
+
+                    donorMoves.Add((course, studentId));
+                    movableCount--;
+                }
+            }
+
+            if (directlyPlaceable.Count + donorMoves.Count < getEffectiveMinStudents(sport, semester))
+                continue;
+
+            var newCourse = new CourseInstance
+            {
+                Sport = sport,
+                Students = new List<string>()
+            };
+
+            foreach (var studentId in directlyPlaceable)
+            {
+                if (newCourse.Students.Count >= sport.MaxStudents)
+                    break;
+
+                newCourse.Students.Add(studentId);
+            }
+
+            foreach (var move in donorMoves)
+            {
+                if (newCourse.Students.Count >= sport.MaxStudents)
+                    break;
+
+                if (newCourse.Students.Contains(move.StudentId))
+                    continue;
+
+                move.Course.Instance.Students.Remove(move.StudentId);
+                students_in_semester[move.Course.Semester - 1].Remove(move.StudentId);
+                newCourse.Students.Add(move.StudentId);
+            }
+
+            if (newCourse.Students.Count < getEffectiveMinStudents(sport, semester))
+                continue;
+
+            foreach (var studentId in newCourse.Students)
+            {
+                remainingStudents.Remove(studentId);
+                students_in_semester[semesterIndex].Add(studentId);
+            }
+
+            GeneratedCourses.Add((semester, newCourse));
+            return true;
+        }
+
+        return false;
+    }
+
+    void OptimizeStudentWishCoverage()
+    {
+        bool changed;
+        int iterations = 0;
+
+        do
+        {
+            changed = false;
+            iterations++;
+
+            foreach (var student in Settings.Instance.Students)
+            {
+                if (TryImproveStudentCoverage(student))
+                {
+                    changed = true;
+                }
+            }
+        } while (changed && iterations < 20);
+    }
+
+    bool TryImproveStudentCoverage(Student student)
+    {
+        var assignments = GetAssignmentsBySemester(student.ID);
+        if (assignments.All(a => a != null))
+            return false;
+
+        var openSemesters = Enumerable.Range(0, 4)
+            .Where(i => assignments[i] == null)
+            .Select(i => i + 1)
+            .ToList();
+        if (openSemesters.Count == 0)
+            return false;
+
+        var assignedSports = assignments
+            .Where(a => a != null)
+            .Select(a => a!.Value.Instance.Sport.Name)
+            .ToHashSet();
+
+        var preferredSports = student.SelectedCourseNames
+            .Select(ResolveSportFromSelection)
+            .Where(sport => sport != null)
+            .DistinctBy(sport => sport!.Name)
+            .Select(sport => sport!)
+            .Where(sport => !assignedSports.Contains(sport.Name))
+            .ToList();
+
+        foreach (var desiredSport in preferredSports)
+        {
+            for (int sourceSemester = 1; sourceSemester <= 4; sourceSemester++)
+            {
+                var currentCourse = assignments[sourceSemester - 1];
+                if (currentCourse == null)
+                    continue;
+
+                var currentCourseValue = currentCourse.Value;
+
+                var desiredCourse = GeneratedCourses
+                    .FirstOrDefault(course =>
+                        course.Semester == sourceSemester &&
+                        course.Instance.Sport.Name == desiredSport.Name &&
+                        course.Instance.Students.Count < course.Instance.Sport.MaxStudents);
+
+                if (desiredCourse.Instance == null)
+                    continue;
+
+                foreach (var targetSemester in openSemesters)
+                {
+                    var relocationTarget = GeneratedCourses
+                        .FirstOrDefault(course =>
+                            course.Semester == targetSemester &&
+                            course.Instance.Sport.Name == currentCourseValue.Instance.Sport.Name &&
+                            course.Instance.Students.Count < course.Instance.Sport.MaxStudents);
+
+                    if (relocationTarget.Instance == null)
+                        continue;
+
+                    if (!CanRelocateStudent(student.ID, currentCourseValue, relocationTarget))
+                        continue;
+
+                    currentCourseValue.Instance.Students.Remove(student.ID);
+                    students_in_semester[sourceSemester - 1].Remove(student.ID);
+
+                    relocationTarget.Instance.Students.Add(student.ID);
+                    students_in_semester[targetSemester - 1].Add(student.ID);
+
+                    desiredCourse.Instance.Students.Add(student.ID);
+                    students_in_semester[sourceSemester - 1].Add(student.ID);
+
+                    return true;
+                }
+            }
+        }
+
+        return false;
+    }
+
+    bool CanRelocateStudent(
+        string studentId,
+        (int Semester, CourseInstance Instance) sourceCourse,
+        (int Semester, CourseInstance Instance) targetCourse)
+    {
+        if (sourceCourse.Semester == targetCourse.Semester)
+            return false;
+
+        if (sourceCourse.Instance.Students.Count - 1 < getEffectiveMinStudents(sourceCourse.Instance.Sport, sourceCourse.Semester))
+            return false;
+
+        if (targetCourse.Instance.Students.Count >= targetCourse.Instance.Sport.MaxStudents)
+            return false;
+
+        if (!isStudentFree(targetCourse.Semester, studentId))
+            return false;
+
+        return true;
+    }
+
+    (int Semester, CourseInstance Instance)?[] GetAssignmentsBySemester(string studentId)
+    {
+        var assignments = new (int Semester, CourseInstance Instance)?[4];
+
+        foreach (var course in GeneratedCourses)
+        {
+            if (course.Instance.Students.Contains(studentId))
+            {
+                assignments[course.Semester - 1] = course;
+            }
+        }
+
+        return assignments;
+    }
+
+    Sport? ResolveSportFromSelection(string selectedCourseName)
+    {
+        return ResolveSportFromCourseName(selectedCourseName);
+    }
+
+    int getSemesterForSport(Sport sp, List<string> interestedStudents)
+    {
+        int[] totalCoursesPerSemester = new int[4];
+        foreach (var inst in GeneratedCourses)
+            totalCoursesPerSemester[inst.Semester - 1]++;
+
+        int bestSem = 0;
+        int minCourses = int.MaxValue;
+        int maxFreeInterestedStudents = -1;
+
+        for (int i = 0; i < 4; i++)
+        {
+            if (sp.Semester[i] == 0)
+                continue;
+
+            int semesterNumber = i + 1;
+
+            int sportCoursesInThisSemester = GeneratedCourses
+                .Count(g => g.Semester == semesterNumber &&
+                            g.Instance.Sport.Name == sp.Name);
+
+            if (sportCoursesInThisSemester >= sp.Semester[i])
+                continue;
+
+            if (totalCoursesPerSemester[i] >= Settings.Instance.NumCoursesPerSemester[i])
+                continue;
+
+            int freeInterestedStudents = interestedStudents
+                .Distinct()
+                .Count(studentId => !students_in_semester[i].Contains(studentId));
+
+            if (freeInterestedStudents < getEffectiveMinStudents(sp, semesterNumber))
+                continue;
+
+            if (freeInterestedStudents > maxFreeInterestedStudents ||
+                (freeInterestedStudents == maxFreeInterestedStudents &&
+                 totalCoursesPerSemester[i] < minCourses))
+            {
+                maxFreeInterestedStudents = freeInterestedStudents;
+                minCourses = totalCoursesPerSemester[i];
+                bestSem = semesterNumber;
+            }
+        }
+
+        return bestSem;
+    }
+
+    ReloadResult();
+}
+
+    public static void ReloadResult()
+    {
+        var errors = ValidateCourses(GeneratedCourses);
+
+        if (errors.Count == 0)
+        {
+            MainWindow.Instance.TbResultLog.Text = "--- Alle generierten Kursen erfüllen die gegebenen Voraussetzungen ---";
+        }
+        else
+        {
+            MainWindow.Instance.TbResultLog.Text = "--- Bei der Generierung sind folgende Fehler aufgetreten: ---\n\n";
+            foreach (var e in errors)
+                MainWindow.Instance.TbResultLog.Text += e + "\n";
+        }
+
+        foreach (var student in Settings.Instance.Students)
+        {
+            student.Result = new string[4];
+        }
+
+        foreach (var course in GeneratedCourses)
+        {
+            foreach (var student in Settings.Instance.Students)
+            {
+                if (course.Instance.Students.Contains(student.ID))
+                {
+                    student.Result[course.Semester - 1] = course.Instance.Sport.Name;
+                }
+            }
+        }
+    }
+    public static string GenerateStatistics()
+    {
+        GeneratedCourses.Sort((x,y) => x.Semester.CompareTo(y.Semester) );
+        string sb = $"Generierte Kurse: {GeneratedCourses.Count}\n\n";
+        foreach (var genc in GeneratedCourses)
+        {
+            sb += $"Sem. {genc.Semester}: {genc.Instance.Sport.Name} ({genc.Instance.Students.Count} SuS)\n";
+        }
+        
+        
+
+        return sb;
+    }
+    
+    public static List<string> ValidateCourses(List<(int Semester, CourseInstance Instance)> courses)
+    {
+        List<string> errors = new();
+
+        // --- 1. Min/Max + Semester erlaubt ---
+        foreach (var tuple in courses)
+        {
+            int semester = tuple.Semester;
+            var inst = tuple.Instance;
+            var sport = inst.Sport;
+
+            if (inst.Students.Count < sport.MinStudents)
+            {
+                errors.Add($"[Min] {sport.Name} (Sem {semester}): {inst.Students.Count} < {sport.MinStudents}");
+            }
+
+            if (inst.Students.Count > sport.MaxStudents)
+            {
+                errors.Add($"[Max] {sport.Name} (Sem {semester}): {inst.Students.Count} > {sport.MaxStudents}");
+            }
+
+            if (sport.Semester[semester - 1] == 0)
+            {
+                errors.Add($"[Semester] {sport.Name} darf nicht in Semester {semester} stattfinden");
+            }
+
+            // --- doppelte Schüler im selben Kurs ---
+            for (int i = 0; i < inst.Students.Count; i++)
+            {
+                for (int j = i + 1; j < inst.Students.Count; j++)
+                {
+                    if (inst.Students[i] == inst.Students[j])
+                    {
+                        errors.Add($"[Kurs-Duplikat] {inst.Students[i]} mehrfach in {sport.Name} (Sem {semester})");
+                    }
+                }
+            }
+        }
+
+        // --- 2. Schüler doppelt im Semester ---
+        for (int sem = 1; sem <= 4; sem++)
+        {
+            List<string> students = new();
+
+            foreach (var tuple in courses)
+            {
+                if (tuple.Semester != sem) continue;
+
+                foreach (var stud in tuple.Instance.Students)
+                {
+                    // prüfen ob schon drin
+                    bool exists = false;
+                    foreach (var s in students)
+                    {
+                        if (s == stud)
+                        {
+                            exists = true;
+                            break;
+                        }
+                    }
+
+                    if (exists)
+                    {
+                        errors.Add($"[Doppelt] Schüler {stud} doppelt in Semester {sem}");
+                    }
+                    else
+                    {
+                        students.Add(stud);
+                    }
+                }
+            }
+        }
+
+        // --- 3. Sport-Angebote pro Semester zählen ---
+        // (ohne Dictionary: wir iterieren über alle Kurse und zählen jeweils erneut)
+
+        foreach (var tuple in courses)
+        {
+            int semester = tuple.Semester;
+            var sport = tuple.Instance.Sport;
+
+            int count = 0;
+
+            foreach (var other in courses)
+            {
+                if (other.Semester == semester &&
+                    other.Instance.Sport.Name == sport.Name)
+                {
+                    count++;
+                }
+            }
+
+            int allowed = sport.Semester[semester - 1];
+
+            if (count > allowed)
+            {
+                errors.Add($"[Sport-Semester] {sport.Name} in Sem {semester}: {count} Kurse > erlaubt {allowed}");
+            }
+        }
+
+        return errors;
+    }
+}

exporter.cs

@@ -0,0 +1,67 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.IO;
+using System.Text.Json;
+
+namespace spplus;
+
+public static class ExportUtility
+{
+    private sealed class ConfigurationExport
+    {
+        public List<Sport> Sports { get; set; } = [];
+        public int[] NumCoursesPerSemester { get; set; } = [];
+    }
+
+    public static void ExportToCSV(string filepath)
+    {
+        char separator = ',';
+        string header = $"SchuelerID{separator}Sem1{separator}Sem2{separator}Sem3{separator}Sem4";
+        string output = header + "\n";
+        foreach (var student in Settings.Instance.Students)
+        {
+            output += $"{student.ID}{separator}{student.Result[0]}{separator}{student.Result[1]}{separator}{student.Result[2]}{separator}{student.Result[3]}\n";
+        }
+        
+        File.WriteAllText(filepath, output);
+    }
+
+    private sealed class ResultExportEntry
+    {
+        public int Semester { get; set; }
+        public string SportName { get; set; } = string.Empty;
+        public List<string> Students { get; set; } = new();
+    }
+
+    public static void ExportResultsToJson(string filepath)
+    {
+        var list = CourseCrafter.GeneratedCourses
+            .Select(g => new ResultExportEntry
+            {
+                Semester = g.Semester,
+                SportName = g.Instance.Sport.Name,
+                Students = g.Instance.Students.ToList()
+            })
+            .ToList();
+
+        var json = JsonSerializer.Serialize(list, new JsonSerializerOptions { WriteIndented = true });
+        File.WriteAllText(filepath, json);
+    }
+
+    public static void ExportConfigurationToJson(string filepath)
+    {
+        var export = new ConfigurationExport
+        {
+            Sports = Settings.Instance.Sports,
+            NumCoursesPerSemester = Settings.Instance.NumCoursesPerSemester
+        };
+
+        var json = JsonSerializer.Serialize(export, new JsonSerializerOptions
+        {
+            WriteIndented = true
+        });
+
+        File.WriteAllText(filepath, json);
+    }
+}

import.cs

@@ -0,0 +1,128 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text.Json;
+using System.Linq;
+
+namespace spplus;
+
+public static class import
+{
+    public static List<Student> ImportStudentsFromFile(string path)
+    {
+        var dict = new Dictionary<string, (string Name, List<string> Courses)>();
+
+        foreach (var line in File.ReadLines(path).Skip(1)) // Header überspringen
+        {
+            if (string.IsNullOrWhiteSpace(line))
+                continue;
+
+            var parts = line.Split(',');
+            if (parts.Length < 3)
+                continue;
+
+            string nameWithId = parts[0].Trim();
+            string course = parts[2].Replace("(2)", "").Replace("(3)", "").Replace("(4)", "").Trim();
+
+            int open = nameWithId.LastIndexOf('(');
+            int close = nameWithId.LastIndexOf(')');
+            if (open < 0 || close < 0 || close <= open)
+                continue;
+
+            string name = nameWithId[..open].Trim();
+            string id = nameWithId[(open + 1)..close].Trim();
+
+            if (!dict.ContainsKey(id))
+                dict[id] = (name, new List<string>());
+
+            dict[id].Courses.Add(course);
+        }
+
+        var result = new List<Student>();
+
+        foreach (var (id, data) in dict)
+        {
+            var student = new Student(id, data.Name, data.Courses);
+            result.Add(student);
+        }
+
+        return result;
+    }
+    
+    public static List<Student> ImportResultFromFile(string path)
+    {
+        var dict = new Dictionary<string, string[]>(StringComparer.OrdinalIgnoreCase);
+
+        foreach (var line in File.ReadLines(path).Skip(1)) // Header überspringen
+        {
+            if (string.IsNullOrWhiteSpace(line))
+                continue;
+
+            var parts = line.Split(',', StringSplitOptions.None);
+            if (parts.Length < 5)
+                continue;
+
+            var studentId = parts[0].Trim();
+            dict[studentId] = new[]
+            {
+                parts[1].Trim(),
+                parts[2].Trim(),
+                parts[3].Trim(),
+                parts[4].Trim()
+            };
+        }
+
+        return dict
+            .Select(entry => new Student(entry.Key, string.Empty, new List<string>())
+            {
+                Result = entry.Value
+            })
+            .ToList();
+    }
+
+    private sealed class ResultImportEntry
+    {
+        public int Semester { get; set; }
+        public string SportName { get; set; } = string.Empty;
+        public List<string> Students { get; set; } = new();
+    }
+
+    public static List<(int Semester, CourseCrafter.CourseInstance Instance)> ImportResultFromJson(string path)
+    {
+        try
+        {
+            var json = File.ReadAllText(path);
+            var entries = JsonSerializer.Deserialize<List<ResultImportEntry>>(json);
+            if (entries == null) return new();
+
+            var result = new List<(int Semester, CourseCrafter.CourseInstance Instance)>();
+
+            foreach (var e in entries)
+            {
+                if (string.IsNullOrWhiteSpace(e.SportName))
+                    continue;
+
+                var sport = Settings.Instance.Sports.FirstOrDefault(s =>
+                    string.Equals(s.Name, e.SportName, StringComparison.OrdinalIgnoreCase) ||
+                    s.AlternativeNames.Any(a => string.Equals(a, e.SportName, StringComparison.OrdinalIgnoreCase)));
+
+                if (sport == null)
+                    continue;
+
+                var ci = new CourseCrafter.CourseInstance
+                {
+                    Sport = sport,
+                    Students = e.Students.Distinct().ToList()
+                };
+
+                result.Add((e.Semester, ci));
+            }
+
+            return result;
+        }
+        catch
+        {
+            return new();
+        }
+    }
+}

spplus.csproj

@@ -5,6 +5,7 @@
     <Nullable>enable</Nullable>
     <ApplicationManifest>app.manifest</ApplicationManifest>
     <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>
+    <ApplicationIcon>res/logo.ico</ApplicationIcon>
   </PropertyGroup>
 
   <ItemGroup>
@@ -19,4 +20,37 @@
     </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>
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Remove="res\logo.ico"/>
+    <AvaloniaResource Include="res\logo.ico">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </AvaloniaResource>
+    <None Remove="res\logo.png"/>
+    <AvaloniaResource Include="res\logo.png">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </AvaloniaResource>
+  </ItemGroup>
+
+  <ItemGroup>
+      <None Include="res/fonts/*.ttf">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
 </Project>

structs.cs

@@ -1,50 +1,81 @@
 using System.Collections.Generic;
+using Avalonia.Data;
 
 namespace spplus;
 
-public abstract class Sport
+public class Sport
 {
+    public int ID { get; set; } = 0;
     public string Name { get; set; } = "Neuer Kurs";    // Kursname
-    public int MaxCoursesPerSemester { get; set; } = 1; // Maximale Anzahl an Kursen pro Semester
-    public int MaxStudents { get; set; } = 20;          // Maximale Anzahl an Schülern pro Kurs
+    
+    public int MaxStudents { get; set; } = 25;          // Maximale Anzahl an Schülern pro Kurs
     public int MinStudents  { get; set; } = 5;          // Minimale Anzahl an Schülern pro Kurs
-    public int[] Semester { get; set; } = [1, 2, 3, 4]; // Angebot in diesen Semestern
+    public int[] Semester { get; set; } = [2, 2, 2, 2]; // Maximale Anzahl an Angeboten in den jeweiligen Index-Semestern (0 => 1. Semester)
+    public List<string> AlternativeNames { get; set; } = new();
+    //public List<int> AlternativeCourses { get; set; } = new();
 
     protected Sport()
     {
         
     }
 
-    protected Sport(string name)
+    public Sport(string name)
     {
         Name = name;
     }
 
-    protected Sport(string name, int maxCoursesPerSemester, int maxStudents, int minStudents, int[] semester)
+    public Sport(string name, int maxCoursesPerSemester, int maxStudents, int minStudents, int[] semester, List<string> alternativeNames)
     {
         Name = name;
-        MaxCoursesPerSemester = maxCoursesPerSemester;
         MaxStudents = maxStudents;
         MinStudents = minStudents;
         Semester = semester;
+        AlternativeNames = alternativeNames;
+    }
+
+    // public void AddAlternativeSport(int id)
+    // {
+    //     AlternativeCourses.Add(id);
+    // }
+    //
+    // public void ClearAlternativeSport()
+    // {
+    //     AlternativeCourses.Clear();
+    // }
+
+    public override string ToString()
+    {
+        var alt = "";
+        foreach (var s in AlternativeNames)
+        {
+            alt += s + ", ";
+        }
+        return  $"{Name} ({alt})";
     }
 }
 
-public abstract class Student
+public class Student
 {
-    public string Name { get; set; } = "";                              // Name des Schülers
-    public Sport[] SelectedCourses { get; set; } = new Sport[4];      // Kurswahl
-    public List<string>? Result { get; set; } = null;
+    public string ID { get; set; } = "";        // ID des Schüler (z.B. NolteSeb)
+    public string Name { get; set; } = "";        // Name des Schülers
+    public List<string> SelectedCourseNames { get; set; } = new();
+    public string[] Result { get; set; } = new string[4];
 
-    protected Student()
+    public Student()
     {
         
     }
     
-    protected Student(string name, Sport[] selectedCourses)
+    public override string ToString()
     {
+        return $"{Name} ({ID})";
+    }
+
+    public Student(string id, string name, List<string> selectedCoursesNames)
+    {
+        ID = id;
         Name  = name;
-        SelectedCourses = selectedCourses;
+        SelectedCourseNames = selectedCoursesNames;
     }
 }
 
@@ -54,6 +85,7 @@ public class Settings
 
     public List<Student> Students { get; set; } = [];
     public List<Sport> Sports { get; set; } = [];
+    public int[] NumCoursesPerSemester { get; set; } = [10,10,11,11]; // Exact Amount of courses, not a maximum
 
     public Settings()
     {
@@ -64,4 +96,37 @@ public class Settings
     {
         // Hier importieren...
     }
+
+    public static void ImportInitial()
+    {
+        Instance.Sports.Clear();
+
+        int id = 1;
+        Instance.Sports.Add(new Sport("Tischtennis"){ ID = id++, AlternativeNames = {"Sport_TT"}});
+        Instance.Sports.Add(new Sport("Badminton"){ ID = id++, AlternativeNames = {"Sport_BM"}});
+        Instance.Sports.Add(new Sport("Gymnastik/Tanz"){ ID = id++, AlternativeNames = {"Sport_Gym"}});
+        Instance.Sports.Add(new Sport("Schwimmen"){ ID = id++, AlternativeNames = {"Sport_SW"}, Semester = [1, 1, 1, 1], MaxStudents = 18});
+        Instance.Sports.Add(new Sport("Bouldern"){ ID = id++, AlternativeNames = {"Sport_BO"}, Semester = [1, 1, 1, 1]});
+        Instance.Sports.Add(new Sport("Basketball"){ ID = id++, AlternativeNames = {"Sport_BS"}});
+        Instance.Sports.Add(new Sport("Fitness"){ ID = id++, AlternativeNames = {"Sport_Fit"}});
+        Instance.Sports.Add(new Sport("Fußball"){ ID = id++, AlternativeNames = {"Sport_Fuß"}, Semester = [1, 0, 1, 0]});
+        Instance.Sports.Add(new Sport("Handball"){ ID = id++, AlternativeNames = {"Sport_HB"}});
+        Instance.Sports.Add(new Sport("Leichtathletik"){ ID = id++, AlternativeNames = {"Sport_LA"}, Semester = [1, 0, 1, 0], MaxStudents = 18});
+        Instance.Sports.Add(new Sport("Tennis"){ ID = id++, AlternativeNames = {"Sport_Te"}});
+        Instance.Sports.Add(new Sport("Turnen"){ ID = id++, AlternativeNames = {"Sport_Tur"}});
+        Instance.Sports.Add(new Sport("Volleyball"){ ID = id++, AlternativeNames = {"Sport_VB"}});
+    }
+
+    public static string? GetSportNameFromID(int id)
+    {
+        foreach (var s in Instance.Sports)
+        {
+            if (s.ID == id)
+            {
+                return s.Name;
+            }
+        }
+
+        return null;
+    }
 }