Big update.

src/strategy/actions/HelpAction.cpp

@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU GPL v2 license, you may redistribute it and/or modify it under version 2 of the License, or (at your option), any later version.
+ */
+
+#include "HelpAction.h"
+#include "ChatActionContext.h"
+#include "Event.h"
+#include "Playerbots.h"
+
+HelpAction::HelpAction(PlayerbotAI* botAI) : Action(botAI, "help")
+{
+    chatContext = new ChatActionContext();
+}
+
+HelpAction::~HelpAction()
+{
+    delete chatContext;
+}
+
+bool HelpAction::Execute(Event event)
+{
+    TellChatCommands();
+    TellStrategies();
+    return true;
+}
+
+void HelpAction::TellChatCommands()
+{
+    std::ostringstream out;
+    out << "Whisper any of: ";
+    out << CombineSupported(chatContext->supports());
+    out << ", [item], [quest] or [object] link";
+    botAI->TellError(out.str());
+}
+
+void HelpAction::TellStrategies()
+{
+    std::ostringstream out;
+    out << "Possible strategies (co/nc/dead commands): ";
+    out << CombineSupported(botAI->GetAiObjectContext()->GetSupportedStrategies());
+    botAI->TellError(out.str());
+}
+
+std::string const HelpAction::CombineSupported(std::set<std::string> commands)
+{
+    std::ostringstream out;
+
+    for (std::set<std::string>::iterator i = commands.begin(); i != commands.end(); )
+	{
+        out << *i;
+		if (++i != commands.end())
+			out << ", ";
+	}
+
+    return out.str();
+}