From 4f7eb9b12e9c7eeb9f3ee0980bd4616df7d678b6 Mon Sep 17 00:00:00 2001
From: Kitty Barnett <develop@catznip.com>
Date: Mon, 2 Sep 2024 01:57:34 +0200
Subject: Add the @getcommand command query reply command

---
 indra/newview/rlvcommon.cpp  |  9 +++++++++
 indra/newview/rlvcommon.h    |  3 +++
 indra/newview/rlvdefines.h   |  2 ++
 indra/newview/rlvhandler.cpp | 31 +++++++++++++++++++++++++++++++
 indra/newview/rlvhelper.cpp  |  1 +
 5 files changed, 46 insertions(+)

diff --git a/indra/newview/rlvcommon.cpp b/indra/newview/rlvcommon.cpp
index 898df3af42..eda2cdedc8 100644
--- a/indra/newview/rlvcommon.cpp
+++ b/indra/newview/rlvcommon.cpp
@@ -9,6 +9,8 @@
 #include "rlvdefines.h"
 #include "rlvcommon.h"
 
+#include <boost/algorithm/string.hpp>
+
 using namespace Rlv;
 
 // ============================================================================
@@ -46,6 +48,13 @@ std::string Strings::getVersionImplNum()
 // RlvUtil
 //
 
+bool Util::parseStringList(const std::string& strInput, std::vector<std::string>& optionList, std::string_view strSeparator)
+{
+    if (!strInput.empty())
+        boost::split(optionList, strInput, boost::is_any_of(strSeparator));
+    return !optionList.empty();
+}
+
 bool Util::sendChatReply(S32 nChannel, const std::string& strUTF8Text)
 {
     if (!isValidReplyChannel(nChannel))
diff --git a/indra/newview/rlvcommon.h b/indra/newview/rlvcommon.h
index 79ac6e1704..bec3e23e11 100644
--- a/indra/newview/rlvcommon.h
+++ b/indra/newview/rlvcommon.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#include "rlvdefines.h"
+
 namespace Rlv
 {
     // ============================================================================
@@ -22,6 +24,7 @@ namespace Rlv
     namespace Util
     {
         bool isValidReplyChannel(S32 nChannel, bool isLoopback = false);
+        bool parseStringList(const std::string& strInput, std::vector<std::string>& optionList, std::string_view strSeparator = Constants::OptionSeparator);
         bool sendChatReply(S32 nChannel, const std::string& strUTF8Text);
         bool sendChatReply(const std::string& strChannel, const std::string& strUTF8Text);
     };
diff --git a/indra/newview/rlvdefines.h b/indra/newview/rlvdefines.h
index 0459b59483..c36512007b 100644
--- a/indra/newview/rlvdefines.h
+++ b/indra/newview/rlvdefines.h
@@ -52,6 +52,7 @@ namespace Rlv
     namespace Constants
     {
         constexpr char CmdPrefix = '@';
+        constexpr std::string_view OptionSeparator = ";";
     }
 }
 
@@ -65,6 +66,7 @@ namespace Rlv
         Version = 0,
         VersionNew,
         VersionNum,
+        GetCommand,
 
         Count,
         Unknown,
diff --git a/indra/newview/rlvhandler.cpp b/indra/newview/rlvhandler.cpp
index 3d7f73937f..8b2620cf48 100644
--- a/indra/newview/rlvhandler.cpp
+++ b/indra/newview/rlvhandler.cpp
@@ -9,6 +9,8 @@
 #include "rlvhandler.h"
 #include "rlvhelper.h"
 
+#include <boost/algorithm/string.hpp>
+
 using namespace Rlv;
 
 // ============================================================================
@@ -143,6 +145,35 @@ ECmdRet CommandHandlerBaseImpl<EParamType::Reply>::processCommand(const RlvComma
     return eRet;
 }
 
+// Handles: @getcommand[:<behaviour>[;<type>[;<separator>]]]=<channel>
+template<> template<>
+ECmdRet ReplyHandler<EBehaviour::GetCommand>::onCommand(const RlvCommand& rlvCmd, std::string& strReply)
+{
+    std::vector<std::string> optionList;
+    Util::parseStringList(rlvCmd.getOption(), optionList);
+
+    // If a second parameter is present it'll specify the command type
+    EParamType eType = EParamType::Unknown;
+    if (optionList.size() >= 2)
+    {
+        if (optionList[1] == "any" || optionList[1].empty())
+            eType = EParamType::Unknown;
+        else if (optionList[1] == "add")
+            eType = EParamType::AddRem;
+        else if (optionList[1] == "force")
+            eType = EParamType::Force;
+        else if (optionList[1] == "reply")
+            eType = EParamType::Reply;
+        else
+            return ECmdRet::FailedOption;
+    }
+
+    std::list<std::string> cmdList;
+    if (BehaviourDictionary::instance().getCommands(!optionList.empty() ? optionList[0] : LLStringUtil::null, eType, cmdList))
+        strReply = boost::algorithm::join(cmdList, optionList.size() >= 3 ? optionList[2] : Constants::OptionSeparator);
+    return ECmdRet::Success;
+}
+
 // Handles: @version=<chnannel> and @versionnew=<channel>
 template<> template<>
 ECmdRet VersionReplyHandler::onCommand(const RlvCommand& rlvCmd, std::string& strReply)
diff --git a/indra/newview/rlvhelper.cpp b/indra/newview/rlvhelper.cpp
index c3f9e6f756..aad615d813 100644
--- a/indra/newview/rlvhelper.cpp
+++ b/indra/newview/rlvhelper.cpp
@@ -22,6 +22,7 @@ BehaviourDictionary::BehaviourDictionary()
     //
     // Reply-only
     //
+    addEntry(new ReplyProcessor<EBehaviour::GetCommand>("getcommand"));
     addEntry(new ReplyProcessor<EBehaviour::Version, VersionReplyHandler>("version"));
     addEntry(new ReplyProcessor<EBehaviour::VersionNew, VersionReplyHandler>("versionnew"));
     addEntry(new ReplyProcessor<EBehaviour::VersionNum>("versionnum"));
-- 
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