[chore:] implemented csv-export access from gui

MainWindow.axaml.cs

@@ -166,7 +166,7 @@ public partial class MainWindow : Window
         {
             try
             {
-                for(int i = 0; i<s.Result.Count;i++)
+                for(int i = 0; i<s.Result.Length;i++)
                 {
                     LbResult.Items.Add($"{s.Name} ({s.ID}) - {i+1}. Semester: {s.Result[i]}");
                 }
@@ -424,8 +424,22 @@ public partial class MainWindow : Window
         } catch {}
     }
 
-    private void BtnExportCourseCSV_OnClick(object? sender, RoutedEventArgs e)
+    private async void BtnExportCourseCSV_OnClick(object? sender, RoutedEventArgs e)
     {
-        // export as csv here
+        var topLevel = GetTopLevel(this);
+        var file = await topLevel!.StorageProvider.SaveFilePickerAsync(new FilePickerSaveOptions
+        {
+            Title = "CSV-Datei speichern",
+            SuggestedFileType = new FilePickerFileType(".csv-Datei")
+            {
+                Patterns = new[] { "*.csv" }
+            }
+            
+        });
+
+        if (file == null) return;
+
+        ExportUtility.ExportToCSV(file.Path.AbsolutePath);
+
     }
 }

crafter.cs

@@ -314,7 +314,7 @@ public class CourseCrafter
 
         if (errors.Count == 0)
         {
-            MainWindow.Instance.TbResultLog.Text = "Alles generierten Kursen erfüllen die gegebenen Voraussetzungen.";
+            MainWindow.Instance.TbResultLog.Text = "--- Alle generierten Kursen erfüllen die gegebenen Voraussetzungen ---";
         }
         else
         {
@@ -323,6 +323,17 @@ public class CourseCrafter
                 MainWindow.Instance.TbResultLog.Text += e + "\n";
         }
         
+        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()
@@ -339,67 +350,6 @@ public class CourseCrafter
         return sb;
     }
     
-    public static string GenerateStatisticsOld()
-    {
-        var settings = Settings.Instance;
-        var students = settings.Students;
-
-        if (GeneratedCourses == null || GeneratedCourses.Count == 0)
-            return "Keine Kurse generiert.";
-
-        int semesterCount = students
-            .Where(s => s.Result != null)
-            .Select(s => s.Result!.Count)
-            .DefaultIfEmpty(0)
-            .Max();
-
-        var sb = new System.Text.StringBuilder();
-
-        sb.AppendLine($"Anzahl generierter Kurse: {GeneratedCourses.Count}");
-        sb.AppendLine("Übersicht:");
-
-        // ===== Kursübersicht =====
-        var grouped = GeneratedCourses
-            .GroupBy(g => new { g.Semester, g.Instance.Sport.Name })
-            .OrderBy(g => g.Key.Semester)
-            .ThenBy(g => g.Key.Name);
-
-        foreach (var group in grouped)
-        {
-            int counter = 1;
-
-            foreach (var entry in group)
-            {
-                int semester = group.Key.Semester + 1;
-                string sportName = group.Key.Name;
-                string number = counter.ToString("D2");
-                int count = entry.Instance.Students.Count;
-
-                sb.AppendLine(
-                    $"Semester {semester}: {sportName} {number}: {count} Schüler*innen"
-                );
-
-                counter++;
-            }
-        }
-
-        sb.AppendLine();
-        sb.AppendLine("Fehlerübersicht:");
-
-        // ===== Fehler pro Semester =====
-        for (int sem = 0; sem < semesterCount; sem++)
-        {
-            int errors = students.Count(st =>
-                st.Result != null &&
-                st.Result.Count > sem &&
-                st.Result[sem] == "Fehler");
-
-            sb.AppendLine($"Semester {sem + 1}: {errors} Fehler");
-        }
-
-        return sb.ToString();
-    }
-    
     public static List<string> ValidateCourses(List<(int Semester, CourseInstance Instance)> courses)
     {
         List<string> errors = new();

exporter.cs

@@ -0,0 +1,19 @@
+using System.IO;
+
+namespace spplus;
+
+public static class ExportUtility
+{
+    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);
+    }
+}

structs.cs

@@ -59,7 +59,7 @@ public class Student
     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 List<string>? Result { get; set; } = null;
+    public string[] Result { get; set; } = new string[4];
 
     public Student()
     {