Complete CommandNode

SpigotCore_Main/src/de/steamwar/command/CommandNode.java

@@ -38,7 +38,9 @@ class CommandNode {
     private final TypeMapper<?> typeMapper;
     private boolean varArg = false;
     private List<CommandNode> commandNodeList = new ArrayList<>();
+
     private Method executor;
+    private List<String> helpMessages = new ArrayList<>();
 
     private Predicate<CommandSender> commandSenderPredicate;
     private Function<CommandSender, Object> commandSenderObjectFunction;
@@ -62,6 +64,10 @@ class CommandNode {
         commandSenderObjectFunction = parameter.getType()::cast;
     }
 
+    public void addHelpMessage(String helpMessage) {
+        this.helpMessages.add(helpMessage);
+    }
+
     public void setVarArg(boolean varArg) {
         if (commandNodeList.isEmpty()) {
             this.varArg = varArg;
@@ -71,24 +77,9 @@ class CommandNode {
     }
 
     public List<String> tabComplete(CommandSender commandSender, int index, String[] args) {
-        try {
-            if (index == args.length - 1) {
-                return typeMapper.tabCompletes(commandSender, Arrays.copyOf(args, index), args[args.length - 1]);
-            }
-            if (typeMapper.map(commandSender, Arrays.copyOf(args, index), args[index]) == null) {
-                return Collections.emptyList();
-            }
-            if (varArg) {
-                return tabComplete(commandSender, index + 1, args);
-            } else {
-                return commandNodeList.stream()
-                        .map(commandNode -> commandNode.tabComplete(commandSender, index + 1, args))
-                        .flatMap(List::stream)
-                        .collect(Collectors.toList());
-            }
-        } catch (Exception e) {
-            return Collections.emptyList();
-        }
+        return internalTabCompleteAndSuggest((commandSender1, integer, strings) -> {
+            return typeMapper.tabCompletes(commandSender1, Arrays.copyOf(strings, integer), strings[strings.length - 1]);
+        }, commandSender, index, args);
     }
 
     public boolean execute(CommandSender commandSender, int index, String[] args, List<Object> mappedObjects) {
@@ -135,7 +126,32 @@ class CommandNode {
                 .findFirst().orElse(false);
     }
 
-    public List<String> suggest(CommandSender commandSender, int index, String[] args, List<Object> mappedObjects) {
-        return null;
+    public List<String> suggest(CommandSender commandSender, int index, String[] args) {
+        return internalTabCompleteAndSuggest((commandSender1, integer, strings) -> helpMessages, commandSender, index, args);
+    }
+
+    private List<String> internalTabCompleteAndSuggest(TriFunction<CommandSender, Integer, String[], List<String>> returnFunction, CommandSender commandSender, int index, String[] args) {
+        try {
+            if (index == args.length - 1) {
+                return returnFunction.apply(commandSender, index, args);
+            }
+            if (typeMapper.map(commandSender, Arrays.copyOf(args, index), args[index]) == null) {
+                return Collections.emptyList();
+            }
+            if (varArg) {
+                return internalTabCompleteAndSuggest(returnFunction, commandSender, index + 1, args);
+            } else {
+                return commandNodeList.stream()
+                        .map(commandNode -> commandNode.internalTabCompleteAndSuggest(returnFunction, commandSender, index + 1, args))
+                        .flatMap(List::stream)
+                        .collect(Collectors.toList());
+            }
+        } catch (Exception e) {
+            return Collections.emptyList();
+        }
+    }
+
+    private interface TriFunction<I1, I2, I3, O> {
+        O apply(I1 i1, I2 i2, I3 i3);
     }
 }

SpigotCore_Main/src/de/steamwar/command/CommandPart.java

@@ -0,0 +1,31 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2020  SteamWar.de-Serverteam
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.command;
+
+import java.lang.reflect.Method;
+import java.util.Map;
+
+public class CommandPart {
+
+    public CommandPart(SWCommand swCommand, Method method, String[] subCommand, Map<String, TypeMapper<?>> localTypeMapper) {
+
+    }
+
+}