feat(GlobalMethods): Add GetConfigValue method (#299)

Co-authored-by: iThorgrim <125808072+iThorgrim@users.noreply.github.com>

src/LuaEngine/LuaFunctions.cpp

@@ -93,6 +93,7 @@ luaL_Reg GlobalMethods[] =
     // Getters
     { "GetLuaEngine", &LuaGlobalFunctions::GetLuaEngine },
     { "GetCoreName", &LuaGlobalFunctions::GetCoreName },
+    { "GetConfigValue", &LuaGlobalFunctions::GetConfigValue },
     { "GetRealmID", &LuaGlobalFunctions::GetRealmID },
     { "GetCoreVersion", &LuaGlobalFunctions::GetCoreVersion },
     { "GetCoreExpansion", &LuaGlobalFunctions::GetCoreExpansion },

src/LuaEngine/methods/GlobalMethods.h

@@ -55,6 +55,49 @@ namespace LuaGlobalFunctions
         return 1;
     }
 
+    /**
+     * Returns config value as a string.
+     *
+     * @param string name : name of the value
+     * @return string value
+     */
+    int GetConfigValue(lua_State* L)
+    {
+        const char* key = Eluna::CHECKVAL<const char*>(L, 1);
+        if (!key) return 0;
+        
+        std::string val = sConfigMgr->GetOption<std::string>(key, "", false);
+
+        if (val.empty())
+        {
+            Eluna::Push(L, val);
+            return 1;
+        }
+
+        std::string lower = val;
+        std::transform(lower.begin(), lower.end(), lower.begin(), ::tolower);
+        
+        if (lower == "true")
+        {
+            Eluna::Push(L, true);
+            return 1;
+        }
+        else if (lower == "false")
+        {
+            Eluna::Push(L, false);
+            return 1;
+        }
+        
+        auto intVal = Acore::StringTo<uint32>(val);
+        if (intVal) {
+            Eluna::Push(L, *intVal);
+            return 1;
+        }
+        
+        Eluna::Push(L, val);
+        return 1;
+    }
+
     /**
      * Returns emulator .conf RealmID
      *