Add Loot Record Comparator enum for sorting LootRecords

Signed-off-by: PKLite <stonewall@pklite.xyz>

runelite-client/src/main/java/net/runelite/client/plugins/loottracker/LootRecordSortType.java

@@ -0,0 +1,39 @@
+package net.runelite.client.plugins.loottracker;
+
+import java.util.Arrays;
+import java.util.Comparator;
+import java.util.stream.IntStream;
+
+/**
+ *
+ */
+public enum LootRecordSortType implements Comparator<LootTrackerRecord>
+{
+	TIMESTAMP
+		{
+			@Override
+			public int compare(LootTrackerRecord o1, LootTrackerRecord o2)
+			{
+				return Math.toIntExact(o1.getTimestamp() - o2.getTimestamp());
+			}
+		},
+	TOTAL_VALUE
+		{
+			@Override
+			public int compare(LootTrackerRecord o1, LootTrackerRecord o2)
+			{
+				int sum = Arrays.stream(o1.getItems()).flatMapToInt(lootTrackerItem ->
+					IntStream.of((int) lootTrackerItem.getPrice() * lootTrackerItem.getQuantity())).sum();
+				return sum - Arrays.stream(o2.getItems()).flatMapToInt(lootTrackerItem ->
+					IntStream.of((int) lootTrackerItem.getPrice() * lootTrackerItem.getQuantity())).sum();
+			}
+		},
+	ITEM_COUNT
+		{
+			@Override
+			public int compare(LootTrackerRecord o1, LootTrackerRecord o2)
+			{
+				return o1.getItems().length - o2.getItems().length;
+			}
+		}
+}

runelite-client/src/main/java/net/runelite/client/plugins/loottracker/LootTrackerBox.java

@@ -32,6 +32,7 @@ import java.awt.GridLayout;
 import java.awt.image.BufferedImage;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collections;
 import java.util.List;
 import java.util.function.BiConsumer;
 import javax.annotation.Nullable;