got basic question and answer creation from canvas

Management/Features/Configuration/Synchronization/ModuleSyncronizationExtensions.cs

@@ -69,4 +69,99 @@ public static partial class ModuleSyncronizationExtensions
       })
     };
   }
+  internal static async Task SortModuleItems(
+    this LocalModule localModule,
+    ulong canvasId,
+    ulong moduleCanvasId,
+    IEnumerable<CanvasModuleItem> canvasModuleItems,
+    CanvasService canvas
+  )
+  {
+    var localItemsWithCorrectOrder = localModule.Assignments
+      .OrderBy(a => a.DueAt)
+      .Select((a, i) => (Assignment: a, Position: i + 1));
+
+    var canvasContentIdsByCurrentPosition =
+      canvasModuleItems.ToDictionary(item => item.Position, item => item.ContentId)
+      ?? new Dictionary<int, ulong?>();
+
+    foreach (var (localAssignment, position) in localItemsWithCorrectOrder)
+    {
+      var itemIsInCorrectOrder =
+        canvasContentIdsByCurrentPosition.ContainsKey(position)
+        && canvasContentIdsByCurrentPosition[position] == localAssignment.CanvasId;
+
+      var currentCanvasItem = canvasModuleItems.First(i => i.ContentId == localAssignment.CanvasId);
+      if (!itemIsInCorrectOrder)
+      {
+        await canvas.UpdateModuleItem(
+          canvasId,
+          moduleCanvasId,
+          currentCanvasItem with
+          {
+            Position = position
+          }
+        );
+      }
+    }
+  }
+
+  internal static async Task<bool> EnsureAllModulesItemsCreated(
+    this LocalModule localModule,
+    ulong canvasId,
+    ulong moduleCanvasId,
+    Dictionary<ulong, IEnumerable<CanvasModuleItem>> canvasModulesItems,
+    CanvasService canvas
+  )
+  {
+    var anyUpdated = false;
+    foreach (var localAssignment in localModule.Assignments)
+    {
+      var canvasModuleItemContentIds = canvasModulesItems[moduleCanvasId].Select(i => i.ContentId);
+      if (!canvasModuleItemContentIds.Contains(localAssignment.CanvasId))
+      {
+        var canvasAssignmentId =
+          localAssignment.CanvasId
+          ?? throw new Exception("cannot create module item if assignment does not have canvas id");
+        await canvas.CreateModuleItem(
+          canvasId,
+          moduleCanvasId,
+          localAssignment.Name,
+          "Assignment",
+          canvasAssignmentId
+        );
+        anyUpdated = true;
+      }
+    }
+
+    return anyUpdated;
+  }
+
+  internal static async Task SyncModuleItemsWithCanvas(
+    this LocalCourse localCourse,
+    ulong canvasId,
+    Dictionary<ulong, IEnumerable<CanvasModuleItem>> canvasModulesItems,
+    CanvasService canvas
+  )
+  {
+    foreach (var localModule in localCourse.Modules)
+    {
+      var moduleCanvasId =
+        localModule.CanvasId
+        ?? throw new Exception("cannot sync canvas modules items if module not synced with canvas");
+
+      bool anyUpdated = await localModule.EnsureAllModulesItemsCreated(
+        canvasId,
+        moduleCanvasId,
+        canvasModulesItems,
+        canvas
+      );
+
+      var canvasModuleItems = anyUpdated
+        ? await canvas.GetModuleItems(canvasId, moduleCanvasId)
+        : canvasModulesItems[moduleCanvasId];
+
+      await localModule.SortModuleItems(canvasId, moduleCanvasId, canvasModuleItems, canvas);
+    }
+  }
 }