From aac9aef821d375f5561f5fd0b296d6d59b729e7f Mon Sep 17 00:00:00 2001
From: Gravit <gravit.min@ya.ru>
Date: Sat, 6 Jul 2019 19:17:23 +0700
Subject: [PATCH] =?UTF-8?q?[FEATURE]=20Help=20=D0=B4=D0=BB=D1=8F=20=D1=81?=
 =?UTF-8?q?=D1=83=D0=B1=D0=BA=D0=BE=D0=BC=D0=BC=D0=B0=D0=BD=D0=B4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../utils/command/basic/HelpCommand.java      | 28 +++++++++++++++++--
 1 file changed, 26 insertions(+), 2 deletions(-)

diff --git a/LauncherCore/src/main/java/pro/gravit/utils/command/basic/HelpCommand.java b/LauncherCore/src/main/java/pro/gravit/utils/command/basic/HelpCommand.java
index 77c819d1..95f00723 100644
--- a/LauncherCore/src/main/java/pro/gravit/utils/command/basic/HelpCommand.java
+++ b/LauncherCore/src/main/java/pro/gravit/utils/command/basic/HelpCommand.java
@@ -1,5 +1,6 @@
 package pro.gravit.utils.command.basic;
 
+import java.util.Arrays;
 import java.util.Map.Entry;
 
 import org.fusesource.jansi.Ansi;
@@ -13,7 +14,7 @@
 public final class HelpCommand extends Command {
     private CommandHandler handler;
 
-    private static void printCommand(String name, Command command) {
+    public static void printCommand(String name, Command command) {
         String args = command.getArgsDescription();
         //LogHelper.subInfo("%s %s - %s", name, args == null ? "[nothing]" : args, command.getUsageDescription());
         LogHelper.rawLog(() -> FormatHelper.rawFormat(LogHelper.Level.INFO, LogHelper.getDataTime(), true) + String.format("%s %s - %s", name, args == null ? "[nothing]" : args, command.getUsageDescription()), () -> {
@@ -31,6 +32,27 @@ private static void printCommand(String name, Command command) {
         }, () -> LogHelper.htmlFormatLog(LogHelper.Level.INFO, LogHelper.getDataTime(), String.format("<font color=\"green\">%s</font> <font color=\"cyan\">%s</font> - <font color=\"yellow\">%s</font>", name, args == null ? "[nothing]" : args, command.getUsageDescription()), true));
     }
 
+    public static void printSubCommandsHelp(String base, Command command)
+    {
+        command.childCommands.forEach((k, v) -> {
+            printCommand(base.concat(" ").concat(k), v);
+        });
+    }
+
+    public static void printSubCommandsHelp(String name, String[] args, Command command) throws CommandException
+    {
+        if(args.length == 0)
+        {
+            printSubCommandsHelp(name, command);
+        }
+        else
+        {
+            Command child = command.childCommands.get(args[0]);
+            if(child == null) throw new CommandException(String.format("Unknown sub command: '%s'", args[0]));
+            printSubCommandsHelp(name.concat(" ").concat(args[0]), Arrays.copyOfRange(args,1 , args.length), child);
+        }
+    }
+
     private static void printCategory(String name, String description) {
         if (description != null) LogHelper.info("Category: %s - %s", name, description);
         else LogHelper.info("Category: %s", name);
@@ -58,7 +80,9 @@ public void invoke(String... args) throws CommandException {
         }
 
         // Print command help
-        printCommand(args[0]);
+        if(args.length == 1)
+            printCommand(args[0]);
+        printSubCommandsHelp(args[0], Arrays.copyOfRange(args, 1 , args.length), handler.lookup(args[0]));
     }
 
     private void printCommand(String name) throws CommandException {