peace nirvana and no yellow warning lines in my console

Management/Features/Configuration/AssignmentEditorContext.cs

@@ -37,7 +37,7 @@ public class AssignmentEditorContext
 
   public void SaveAssignment(LocalAssignment newAssignment)
   {
-    if (planner.LocalCourse != null)
+    if (planner.LocalCourse != null && Assignment != null)
     {
       // run discovery on Assignment, it was the last stored version of the assignment
       var currentModule = getCurrentLocalModule(Assignment, planner.LocalCourse);
@@ -106,7 +106,6 @@ public class AssignmentEditorContext
       courseId: (ulong)planner.LocalCourse.Settings.CanvasId,
       canvasAssignmentId: canvasAssignmentId,
       localAssignment: Assignment,
-      htmlDescription: Assignment.GetDescriptionHtml(),
       canvasAssignmentGroupId: (ulong)canvasAssignmentGroupId
     );
   }

Management/Features/Configuration/QuizEditorContext.cs

@@ -31,7 +31,7 @@ public class QuizEditorContext
     get => _quiz;
     set
     {
-      if (_quiz == null && value != null)
+      if (_quiz == null && value != null && planner != null && planner.LocalCourse != null)
       {
         _module = getCurrentLocalModule(value, planner.LocalCourse);
       }

Management/Features/Configuration/Synchronization/AssignmentSyncronizationExtensions.cs

@@ -24,7 +24,6 @@ public static partial class AssignmentSyncronizationExtensions
     var canvasAssignment = canvasAssignments.FirstOrDefault(
       ca => ca.Name == localAssignment.Name
     );
-    string localHtmlDescription = localAssignment.GetDescriptionHtml();
 
     var canvasAssignmentGroupId = localAssignment.GetCanvasAssignmentGroupId(localCourse.Settings.AssignmentGroups);
 
@@ -35,10 +34,9 @@ public static partial class AssignmentSyncronizationExtensions
         localAssignment,
         canvasAssignment,
         canvas,
-        localHtmlDescription,
         canvasAssignmentGroupId
       )
-      : await canvas.Assignments.Create(canvasCourseId, localAssignment, localHtmlDescription, canvasAssignmentGroupId);
+      : await canvas.Assignments.Create(canvasCourseId, localAssignment, canvasAssignmentGroupId);
   }
 
   private static async Task<ulong> updateAssignmentIfNeeded(
@@ -47,7 +45,6 @@ public static partial class AssignmentSyncronizationExtensions
     LocalAssignment localAssignment,
     CanvasAssignment canvasAssignment,
     CanvasService canvas,
-    string localHtmlDescription,
     ulong? canvasAssignmentGroupId
   )
   {
@@ -63,8 +60,7 @@ public static partial class AssignmentSyncronizationExtensions
         courseId: canvasCourseId,
         canvasAssignmentId: canvasAssignment.Id,
         localAssignment,
-        localHtmlDescription,
-        (ulong)canvasAssignmentGroupId
+        canvasAssignmentGroupId
       );
     }
     return canvasAssignment.Id;

Management/Models/Local/LocalCourse.cs

@@ -3,7 +3,7 @@ namespace LocalModels;
 public record LocalCourse
 {
   public IEnumerable<LocalModule> Modules { get; init; } = Enumerable.Empty<LocalModule>();
-  public LocalCourseSettings Settings { get; set; }
+  public required LocalCourseSettings Settings { get; set; }
 }
 
 public record SimpleTimeOnly

Management/Services/Canvas/CanvasAssignmentService.cs

@@ -38,7 +38,6 @@ public class CanvasAssignmentService
   public async Task<ulong> Create(
     ulong canvasCourseId,
     LocalAssignment localAssignment,
-    string htmlDescription,
     ulong? canvasAssignmentGroupId
   )
   {
@@ -49,7 +48,7 @@ public class CanvasAssignmentService
     {
       name = localAssignment.Name,
       submission_types = localAssignment.SubmissionTypes.Select(t => t.ToString()),
-      description = htmlDescription,
+      description = localAssignment.GetDescriptionHtml(),
       due_at = localAssignment.DueAt,
       lock_at = localAssignment.LockAt,
       points_possible = localAssignment.PointsPossible,
@@ -71,8 +70,7 @@ public class CanvasAssignmentService
     ulong courseId,
     ulong canvasAssignmentId,
     LocalAssignment localAssignment,
-    string htmlDescription,
-    ulong canvasAssignmentGroupId
+    ulong? canvasAssignmentGroupId
   )
   {
     log.Log($"updating assignment: {localAssignment.Name}");

Management/Services/Canvas/CanvasService.cs

@@ -64,8 +64,8 @@ public class CanvasService
 
     if (data == null)
     {
-      logger.Error(response.Content);
-      logger.Error(response.ResponseUri?.ToString());
+      logger.Error(response?.Content ?? "");
+      logger.Error(response?.ResponseUri?.ToString() ?? "");
       throw new Exception("error getting course from canvas");
     }
     return data;

Management/Services/Files/FileStorageManager.cs

@@ -23,7 +23,7 @@ public class FileStorageManager
     this.logger.Log("Using storage directory: " + _basePath);
 
   }
-  public async Task SaveCourseAsync(LocalCourse course, LocalCourse previouslyStoredCourse)
+  public async Task SaveCourseAsync(LocalCourse course, LocalCourse? previouslyStoredCourse)
   {
     await _saveMarkdownCourse.Save(course, previouslyStoredCourse);
   }
@@ -39,7 +39,7 @@ public class FileStorageManager
     return await _courseMarkdownLoader.LoadSavedMarkdownCourses();
   }
 
-  public async Task<IEnumerable<string>> GetEmptyDirectories()
+  public IEnumerable<string> GetEmptyDirectories()
   {
     if(!Directory.Exists(_basePath))
       throw new DirectoryNotFoundException($"Cannot get empty directories,  {_basePath} does not exist");

Management/Services/Files/SaveMarkdownCourse.cs

@@ -13,7 +13,7 @@ public class MarkdownCourseSaver
     _basePath = FileConfiguration.GetBasePath();
   }
 
-  public async Task Save(LocalCourse course, LocalCourse previouslyStoredCourse)
+  public async Task Save(LocalCourse course, LocalCourse? previouslyStoredCourse)
   {
     var courseDirectory = $"{_basePath}/{course.Settings.Name}";
     if (!Directory.Exists(courseDirectory))