Added Item Bind Command

BauSystem_Main/src/de/steamwar/bausystem/features/util/ItemBindCommand.java

@@ -0,0 +1,81 @@
+package de.steamwar.bausystem.features.util;
+
+import de.steamwar.bausystem.SWUtils;
+import de.steamwar.command.PreviousArguments;
+import de.steamwar.command.SWCommand;
+import de.steamwar.command.TypeMapper;
+import de.steamwar.linkage.Linked;
+import org.bukkit.Bukkit;
+import org.bukkit.NamespacedKey;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.PluginCommand;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.persistence.PersistentDataType;
+import org.luaj.vm2.ast.Str;
+
+import java.util.*;
+
+@Linked
+public class ItemBindCommand extends SWCommand {
+
+    private static final NamespacedKey KEY = SWUtils.getNamespaceKey("command");
+
+    public ItemBindCommand() {
+        super("item");
+    }
+
+    @Register("bind")
+    public void bind(Player player, @Mapper("command") String... command) {
+        player.sendMessage(command);
+
+        ItemStack item = player.getInventory().getItemInMainHand();
+        ItemMeta meta = item.getItemMeta();
+
+        meta.getPersistentDataContainer().set(KEY, PersistentDataType.STRING, "");
+
+    }
+
+    @Mapper(value = "command", local = true)
+    public TypeMapper<String> getCommandMapper() {
+        Map<String, String[]> commandMap = Bukkit.getCommandAliases();
+        Map<String, String> reverseCommandMap = new HashMap<>();
+        List<String> commands = new ArrayList<>();
+
+        commandMap.forEach((command, aliases) -> {
+            commands.add(command);
+            commands.addAll(Arrays.asList(aliases));
+
+            reverseCommandMap.put(command, command);
+            for (String alias : aliases) {
+                reverseCommandMap.put(alias, command);
+            }
+        });
+
+        return new TypeMapper<String>() {
+            @Override
+            public String map(CommandSender commandSender, String[] previousArguments, String s) {
+                return s;
+            }
+
+            @Override
+            public Collection<String> tabCompletes(CommandSender sender, PreviousArguments previousArguments, String s) {
+                List<String> args = previousArguments.getAll(String.class);
+
+                if (args.isEmpty()) return commands;
+
+                String inputCommand = args.remove(0);
+                String command = reverseCommandMap.get(inputCommand);
+
+                if (command == null) return null;
+
+                PluginCommand pluginCommand = Bukkit.getPluginCommand(command);
+
+                if (pluginCommand == null) return null;
+
+                return pluginCommand.tabComplete(sender, inputCommand, args.toArray(new String[0]));
+            }
+        };
+    }
+}