From 9a288debd693403bdd1cebca14b483dd009815a2 Mon Sep 17 00:00:00 2001
From: Akash Aggarwal <virusofminds@gmail.com>
Date: Wed, 1 Nov 2017 14:59:05 +0530
Subject: [PATCH] Smart tab completion

---
 .../Commands/SlimefunTabCompleter.java        | 24 ++++++++++++++++---
 1 file changed, 21 insertions(+), 3 deletions(-)

diff --git a/src/me/mrCookieSlime/Slimefun/Commands/SlimefunTabCompleter.java b/src/me/mrCookieSlime/Slimefun/Commands/SlimefunTabCompleter.java
index 3d1bb3dab..d9aff970a 100644
--- a/src/me/mrCookieSlime/Slimefun/Commands/SlimefunTabCompleter.java
+++ b/src/me/mrCookieSlime/Slimefun/Commands/SlimefunTabCompleter.java
@@ -15,11 +15,11 @@ public class SlimefunTabCompleter implements TabCompleter {
 	@Override
 	public List<String> onTabComplete(CommandSender sender, Command cmd, String label, String[] args) {
 		if (args.length == 1) {
-			return SlimefunCommand.tabs;
+			return createReturnList(SlimefunCommand.tabs, args[0]);
 		}
 		else if (args.length == 3) {
 			if (args[0].equalsIgnoreCase("give")) {
-				return Slimefun.listIDs();
+				return createReturnList(Slimefun.listIDs(), args[2]);
 			}
 			else if (args[0].equalsIgnoreCase("research")) {
 				List<String> researches = new ArrayList<String>();
@@ -27,7 +27,7 @@ public class SlimefunTabCompleter implements TabCompleter {
 					researches.add(res.getName().toUpperCase().replace(" ", "_"));
 				}
 				researches.add("all");
-				return researches;
+				return createReturnList(researches, args[2]);
 			}
 			else {
 				return null;
@@ -38,4 +38,22 @@ public class SlimefunTabCompleter implements TabCompleter {
 		}
 	}
 
+	/***
+	 * Returns a sublist from a given list containing items that start with the given string if string is not empty
+	 * @param list The list to process
+	 * @param string The typed string
+	 * @return Sublist if string is not empty
+	 */
+
+	private List<String> createReturnList(List<String> list, String string) {
+		if (string.equals("")) return list;
+
+		List<String> returnList = new ArrayList<>();
+		for (String item : list) {
+			if (item.toLowerCase().startsWith(string.toLowerCase())) {
+				returnList.add(item);
+			}
+		}
+		return returnList;
+	}
 }