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()
+        {
+
+        }
+    }
+}

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

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+using System;
+using System.Collections.Generic;
+
+namespace Wino.Core.Domain.Models.Comparers
+{
+    /// <summary>
+    /// Used to insert date grouping into proper place in Reader page.
+    /// </summary>
+    public class DateTimeComparer : IComparer<DateTime>
+    {
+        public int Compare(DateTime x, DateTime y)
+        {
+            return DateTime.Compare(y, x);
+        }
+    }
+}

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

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+using System.Collections.Generic;
+using Wino.Core.Domain.Entities;
+
+namespace Wino.Core.Domain.Models.Comparers
+{
+    public class FolderNameComparer : IComparer<MailItemFolder>
+    {
+        public int Compare(MailItemFolder x, MailItemFolder y)
+        {
+            return x.FolderName.CompareTo(y.FolderName);
+        }
+    }
+}

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

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+using System;
+using System.Collections.Generic;
+using Wino.Core.Domain.Models.MailItem;
+
+namespace Wino.Core.Domain.Models.Comparers
+{
+    public class ListItemComparer : IComparer<object>
+    {
+        public bool SortByName { get; set; }
+
+        public DateComparer DateComparer = new DateComparer();
+        public readonly NameComparer NameComparer = new NameComparer();
+
+        public int Compare(object x, object y)
+        {
+            if (x is IMailItem xMail && y is IMailItem yMail)
+            {
+                var itemComparer = GetItemComparer();
+
+                return itemComparer.Compare(xMail, yMail);
+            }
+            else if (x is DateTime dateX && y is DateTime dateY)
+                return DateTime.Compare(dateY, dateX);
+            else if (x is string stringX && y is string stringY)
+                return stringY.CompareTo(stringX);
+
+            return 0;
+        }
+
+        public IComparer<IMailItem> GetItemComparer()
+        {
+            if (SortByName)
+                return NameComparer;
+            else
+                return DateComparer;
+        }
+    }
+}

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

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+using System.Collections.Generic;
+using Wino.Core.Domain.Models.MailItem;
+
+namespace Wino.Core.Domain.Models.Comparers
+{
+    public class NameComparer : IComparer<IMailItem>
+    {
+        public int Compare(IMailItem x, IMailItem y)
+        {
+            return string.Compare(x.FromName, y.FromName);
+        }
+    }
+}