C++ TFS 1.3 docastspell help to fix my code

[epaminombas]

TFS 1.3

This code works but ignore parameters of spells.xml spent mana, cooldown, range and all another parameters.
I need this code follow spells.xml parameters.

I try make items with shorcut for cast spells

Lua Script

function onUse(player, words, param)
        player:doCastSpell("Light Healing")
end

C++ Code

int LuaScriptInterface::luaDoCastSpell(lua_State* L)
{
    //creature: doCastSpell("spellName")
    Creature* creature = getUserdata<Creature>(L, 1);
    if(!creature) {
        lua_pushboolean(L, false);
        return 1;
    }

    const std::string& spellName = getString(L, 2);
    InstantSpell* spell = g_spells->getInstantSpellByName(spellName);
    if(!spell) {
        lua_pushboolean(L, false);
        return 1;
    }

    Creature* target = creature->getAttackedCreature();
    if(target)
        spell->castSpell(creature, target);
    else
        spell->castSpell(creature, creature);

    lua_pushboolean(L, true);     

    return 1;
}