Clean up code a bit

src/main/java/me/libraryaddict/disguise/commands/undisguise/UndisguisePlayerCommand.java

@@ -0,0 +1,122 @@
+package me.libraryaddict.disguise.commands.undisguise;
+
+import me.libraryaddict.disguise.DisguiseAPI;
+import me.libraryaddict.disguise.disguisetypes.DisguiseType;
+import me.libraryaddict.disguise.utilities.LibsPremium;
+import me.libraryaddict.disguise.utilities.translations.LibsMsg;
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabCompleter;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.Player;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.UUID;
+
+public class UndisguisePlayerCommand implements CommandExecutor, TabCompleter {
+    protected ArrayList<String> filterTabs(ArrayList<String> list, String[] origArgs) {
+        if (origArgs.length == 0)
+            return list;
+
+        Iterator<String> itel = list.iterator();
+        String label = origArgs[origArgs.length - 1].toLowerCase();
+
+        while (itel.hasNext()) {
+            String name = itel.next();
+
+            if (name.toLowerCase().startsWith(label))
+                continue;
+
+            itel.remove();
+        }
+
+        return list;
+    }
+
+    protected String[] getArgs(String[] args) {
+        ArrayList<String> newArgs = new ArrayList<>();
+
+        for (int i = 0; i < args.length - 1; i++) {
+            String s = args[i];
+
+            if (s.trim().isEmpty())
+                continue;
+
+            newArgs.add(s);
+        }
+
+        return newArgs.toArray(new String[0]);
+    }
+
+    @Override
+    public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
+        if (sender instanceof Player && !sender.isOp() &&
+                (!LibsPremium.isPremium() || LibsPremium.getPaidInformation() == LibsPremium.getPluginInformation())) {
+            sender.sendMessage(ChatColor.RED + "Please purchase Lib's Disguises to enable player commands");
+            return true;
+        }
+
+        if (!sender.hasPermission("libsdisguises.undisguiseplayer")) {
+            sender.sendMessage(LibsMsg.NO_PERM.get());
+            return true;
+        }
+
+        if (args.length == 0) {
+            sender.sendMessage(LibsMsg.UNDISG_PLAYER_HELP.get());
+            return true;
+        }
+
+        Entity entityTarget = Bukkit.getPlayer(args[0]);
+
+        if (entityTarget == null) {
+            if (args[0].contains("-")) {
+                try {
+                    entityTarget = Bukkit.getEntity(UUID.fromString(args[0]));
+                }
+                catch (Exception ignored) {
+                }
+            }
+        }
+
+        if (entityTarget == null) {
+            sender.sendMessage(LibsMsg.CANNOT_FIND_PLAYER.get(args[0]));
+            return true;
+        }
+
+        if (DisguiseAPI.isDisguised(entityTarget)) {
+            DisguiseAPI.undisguiseToAll(entityTarget);
+            sender.sendMessage(LibsMsg.UNDISG_PLAYER.get(entityTarget instanceof Player ? entityTarget.getName() :
+                    DisguiseType.getType(entityTarget).toReadable()));
+        } else {
+            sender.sendMessage(LibsMsg.UNDISG_PLAYER_FAIL.get(entityTarget instanceof Player ? entityTarget.getName() :
+                    DisguiseType.getType(entityTarget).toReadable()));
+        }
+
+        return true;
+    }
+
+    @Override
+    public List<String> onTabComplete(CommandSender sender, Command cmd, String label, String[] origArgs) {
+        ArrayList<String> tabs = new ArrayList<>();
+        String[] args = getArgs(origArgs);
+
+        if (args.length != 0)
+            return filterTabs(tabs, origArgs);
+
+        for (Player player : Bukkit.getOnlinePlayers()) {
+            // If command user cannot see player online, don't tab-complete name
+            if (sender instanceof Player && !((Player) sender).canSee(player)) {
+                continue;
+            }
+
+            tabs.add(player.getName());
+        }
+
+        return filterTabs(tabs, origArgs);
+    }
+}