added quiz popup form and displaying on month

Management.Web/Shared/Semester/Day/Day.razor

@@ -0,0 +1,127 @@
+@inject DragContainer dragContainer
+@inject CoursePlanner configurationManagement
+
+@inject CoursePlanner planner
+
+@code 
+{
+  [Parameter, EditorRequired]
+  public DateTime? date { get; set; } =
+  default!; 
+  
+  private bool isWeekDay {
+    get => date?.DayOfWeek != null;
+  }
+  private bool dragging {get; set;} = false;
+  protected override void OnInitialized()
+  {
+    planner.StateHasChanged += reload;
+  }
+  private void reload()
+  {
+    this.InvokeAsync(this.StateHasChanged);
+  }
+  public void Dispose()
+  {
+    planner.StateHasChanged -= reload;
+  }
+  
+
+  private IEnumerable<LocalAssignment> TodaysAssignments 
+    {
+    get
+    {
+      if(planner.LocalCourse == null || date == null)
+        return Enumerable.Empty<LocalAssignment>();
+      else
+        return planner.LocalCourse.Modules
+          .SelectMany(m => m.Assignments)
+          .Where(a => a.DueAt.Date == date?.Date);
+    }
+  }
+
+  private IEnumerable<LocalQuiz> todaysQuizzes 
+    {
+      get
+      {
+        if(planner.LocalCourse == null || date == null)
+          return Enumerable.Empty<LocalQuiz>();
+        else
+          return planner.LocalCourse.Modules
+            .SelectMany(m => m.Quizzes)
+            .Where(q => q.DueAt.Date == date?.Date);
+      }
+    }
+  private string calculatedClass
+  {
+    get
+    {
+      var baseClasses = "col border rounded rounded-3 p-2 pb-4 m-1 "; 
+      if(dragging)
+        return baseClasses + " bg-secondary text-light ";
+
+      if (isWeekDay)
+      {
+        DayOfWeek? weekDay = date?.DayOfWeek;
+        DayOfWeek notNullDay = weekDay ?? default;
+        
+        var isClassDay = planner.LocalCourse?.DaysOfWeek.Contains(notNullDay) ?? false;
+        var dayInSemester = 
+          isClassDay
+            && date <= planner.LocalCourse?.EndDate
+            && date >= planner.LocalCourse?.StartDate;
+        
+        var totalClasses = dayInSemester 
+          ? "bg-light-subtle text-light " + baseClasses 
+          : " " + baseClasses;
+
+        return totalClasses;
+      }
+      else
+      {
+        return baseClasses;
+      }
+    }
+  }
+  void OnDragEnter() {
+    dragging = true;
+  }
+  void OnDragLeave() {
+    dragging = false;
+  }
+
+  void OnDrop()
+  {
+    dragging = false;
+    if(dragContainer.DropCallback == null){
+      System.Console.WriteLine("no drop callback set");
+      return;
+    }
+    if(date != null)
+    {
+      DateTime d = date ?? throw new Exception("should not get here, error converting date from nullable");
+      dragContainer.DropCallback?.Invoke(d, null);
+    }
+  }
+} 
+
+<div 
+  class="@calculatedClass"
+  @ondrop="@(() => OnDrop())"
+  @ondragenter="OnDragEnter"
+  @ondragleave="OnDragLeave"
+  ondragover="event.preventDefault();"
+>
+  @(isWeekDay ? date?.Day : "")
+  <div class="m-0 ps-3">
+  @foreach (var assignment in TodaysAssignments)
+  {
+    <AssignmentInDay Assignment="assignment" @key="@assignment" />
+  }
+
+  @foreach(var quiz in todaysQuizzes)
+  {
+    <QuizInDay Quiz="quiz" @key="@quiz" />
+  }
+  </div>
+</div>