Big update.

src/PlayerbotTextMgr.cpp

@@ -0,0 +1,49 @@
+/*
+ * 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 "PlayerbotTextMgr.h"
+#include "Playerbots.h"
+
+void replaceAll(std::string& str, std::string const from, std::string const to);
+
+void PlayerbotTextMgr::LoadTemplates()
+{
+    LOG_INFO("playerbots", "Loading playerbots texts...");
+
+    uint32 count = 0;
+    if (PreparedQueryResult result = PlayerbotsDatabase.Query(PlayerbotsDatabase.GetPreparedStatement(PLAYERBOTS_SEL_TEXT)))
+    {
+        do
+        {
+            Field* fields = result->Fetch();
+            std::string const key = fields[0].Get<std::string>();
+            std::string const text = fields[1].Get<std::string>();
+            templates[key].push_back(text);
+            ++count;
+        }
+        while (result->NextRow());
+    }
+
+    LOG_INFO("playerbots", "{} playerbots texts loaded", count);
+}
+
+std::string const PlayerbotTextMgr::Format(std::string const key, std::map<std::string, std::string> placeholders)
+{
+    if (templates.empty())
+        LoadTemplates();
+
+    std::vector<std::string>& list = templates[key];
+    if (list.empty())
+    {
+        std::ostringstream out;
+        out << "Unknown text: " << key;
+        return out.str();
+    }
+
+    std::string str = list[urand(0, list.size() - 1)];
+    for (std::map<std::string, std::string>::iterator i = placeholders.begin(); i != placeholders.end(); ++i)
+        replaceAll(str, i->first, i->second);
+
+    return str;
+}