Getting all button spells/states

[Sharji]

Hello

It is about TDDps addon. I'm author of it.

I have a problem with multi state bars (for example when rogue gets in stealth, action bar changes to other one). How can I actually read all spells that are beneath all of the buttons? In multiple states? Here is the example code of scaning ElvUI (LibActionButton):

function TDButton_FetchElvUI()
    local ret = false;
    for x = 1, 10 do
        for i = 1, 12 do
            local button = _G['ElvUI_Bar' .. x .. 'Button' .. i];
            if button then
                local spellId = button:GetSpellId();
                if spellId then
                    local actionName, _ = GetSpellInfo(spellId);
                    if actionName then
                        if TDButton_Spells[actionName] == nil then
                            TDButton_Spells[actionName] = {};
                        end
                        ret = true;
                        tinsert(TDButton_Spells[actionName], button);
                    end
                end
            end
        end
    end
    return ret;
end

Is there a way to make it work? Scanning them each time bar changes does not seem like a good idea