Big update.

src/strategy/actions/TrainerAction.h

@@ -0,0 +1,31 @@
+/*
+ * 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.
+ */
+
+#ifndef _PLAYERBOT_TRAINERACTION_H
+#define _PLAYERBOT_TRAINERACTION_H
+
+#include "Action.h"
+#include "ChatHelper.h"
+
+class Creature;
+class PlayerbotAI;
+
+struct TrainerSpell;
+
+class TrainerAction : public Action
+{
+	public:
+		TrainerAction(PlayerbotAI* botAI) : Action(botAI, "trainer") { }
+
+        bool Execute(Event event) override;
+
+    private:
+        typedef void(TrainerAction::*TrainerSpellAction)(uint32, TrainerSpell const*, std::ostringstream& msg);
+        void Iterate(Creature* creature, TrainerSpellAction action, SpellIds& spells);
+        void Learn(uint32 cost, TrainerSpell const* tSpell, std::ostringstream& msg);
+        void TellHeader(Creature* creature);
+        void TellFooter(uint32 totalCost);
+};
+
+#endif