(#401) users: add core domain objects:

MiniSpace.Services.Students/src/MiniSpace.Services.Students.Core/Entities/UserProfileViews.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+
+namespace MiniSpace.Services.Students.Core.Entities
+{
+    public class UserProfileViews
+    {
+        public Guid UserId { get; private set; }
+        public IEnumerable<View> Views { get; private set; }
+
+        public UserProfileViews(Guid userProfileId, IEnumerable<View> views)
+        {
+            UserId = userProfileId;
+            Views = views ?? new List<View>();
+        }
+
+        public void AddView(Guid userProfileId, DateTime date)
+        {
+            var viewList = new List<View>(Views)
+            {
+                new View(userProfileId, date)
+            };
+            Views = viewList;
+        }
+
+        public void RemoveView(Guid userProfileId)
+        {
+            var viewList = new List<View>(Views);
+            var viewToRemove = viewList.Find(view => view.UserProfileId == userProfileId);
+            if (viewToRemove != null)
+            {
+                viewList.Remove(viewToRemove);
+                Views = viewList;
+            }
+        }
+    }
+}

MiniSpace.Services.Students/src/MiniSpace.Services.Students.Core/Entities/View.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace MiniSpace.Services.Students.Core.Entities
+{
+    public class View
+    {
+        public Guid UserProfileId { get; private set; }
+        public DateTime Date { get; private set; }
+
+        public View(Guid postId, DateTime date)
+        {
+            UserProfileId = postId;
+            Date = date;
+        }
+    }
+}