Initial commit.

Wino.Core.Domain/Models/Comparers/DateComparer.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using Wino.Core.Domain.Models.MailItem;
+
+namespace Wino.Core.Domain.Models.Comparers
+{
+    public class DateComparer : IComparer<IMailItem>, IEqualityComparer
+    {
+        public int Compare(IMailItem x, IMailItem y)
+        {
+            return DateTime.Compare(y.CreationDate, x.CreationDate);
+        }
+
+        public new bool Equals(object x, object y)
+        {
+            if (x is IMailItem firstItem && y is IMailItem secondItem)
+            {
+                return firstItem.Equals(secondItem);
+            }
+
+            return false;
+        }
+
+        public int GetHashCode(object obj) => (obj as IMailItem).GetHashCode();
+
+        public DateComparer()
+        {
+
+        }
+    }
+}