Merge Latest Ryujinx (Unstable)

src/Ryujinx/UI/Models/Generic/LastPlayedSortComparer.cs

@@ -0,0 +1,31 @@
+using Ryujinx.UI.App.Common;
+using System;
+using System.Collections.Generic;
+
+namespace Ryujinx.Ava.UI.Models.Generic
+{
+    internal class LastPlayedSortComparer : IComparer<ApplicationData>
+    {
+        public LastPlayedSortComparer() { }
+        public LastPlayedSortComparer(bool isAscending) { IsAscending = isAscending; }
+
+        public bool IsAscending { get; }
+
+        public int Compare(ApplicationData x, ApplicationData y)
+        {
+            DateTime aValue = DateTime.UnixEpoch, bValue = DateTime.UnixEpoch;
+
+            if (x?.LastPlayed != null)
+            {
+                aValue = x.LastPlayed.Value;
+            }
+
+            if (y?.LastPlayed != null)
+            {
+                bValue = y.LastPlayed.Value;
+            }
+
+            return (IsAscending ? 1 : -1) * DateTime.Compare(aValue, bValue);
+        }
+    }
+}