Help with an LUA script.. anyone?

[MatzeH84]

I'm trying to use the EDM using only two physical buttons, like in real life. I'm using FSUIPC, and assigning all the functions (short press, long press, both press) to individual buttons works well (so using 5 individual hardware inputs).
As I have no idea of LUA scripting, I asked ChatGPT, but it does not work. Maybe someone with a deeper knowledge could have a look at this.. I'd be grateful:

---

-- JPI_DualButton_Param.lua

-- Parameter 1 -> Taste A press
-- Parameter -1 -> Taste A release
-- Parameter 2 -> Taste B press
-- Parameter -2 -> Taste B release

-- ============= KONFIGURATION =================
hvarA_short = "bksq_JpiButton_1_L_Short"
hvarA_long = "bksq_JpiButton_1_L_Long"
hvarB_short = "bksq_JpiButton_1_R_Short"
hvarB_long = "bksq_JpiButton_1_R_Long"
hvarAB_long = "bksq_JpiButton_1_B_Long"

longpress_ms = 2000

-- ============= INTERN ==============
pressedA = false
pressedB = false
startA = 0
startB = 0

-- HVAR Setter
local function setHVar(name)
pcall(function()
ipc.writeSTR("H:" .. name, "")
end)
end

-- Prüfen ob beide >= longpress
local function bothLong(now)
if not (pressedA and pressedB) then return false end
return (now - startA >= longpress_ms) and (now - startB >= longpress_ms)
end

---

-- HAUPTFUNKTION – wird per LuaValue(Parameter) aus FSUIPC aufgerufen

function ipcPARAM(param)

local now = ipc.elapsedtime()

----------------------------------------------------------------
-- TASTE A
----------------------------------------------------------------
if param == 1 then                      -- A pressed
    pressedA = true
    startA = now

elseif param == -1 then                 -- A released
    local dur = now - startA

    if bothLong(now) then
        setHVar(hvarAB_long)
    else
        if dur >= longpress_ms then
            setHVar(hvarA_long)
        else
            setHVar(hvarA_short)
        end
    end

    pressedA = false
    startA = 0
end


----------------------------------------------------------------
-- TASTE B
----------------------------------------------------------------
if param == 2 then                      -- B pressed
    pressedB = true
    startB = now

elseif param == -2 then                 -- B released
    local dur = now - startB

    if bothLong(now) then
        setHVar(hvarAB_long)
    else
        if dur >= longpress_ms then
            setHVar(hvarB_long)
        else
            setHVar(hvarB_short)
        end
    end

    pressedB = false
    startB = 0
end

end

[jmarkows]

@MatzeH84 From rubbing the sleep from my eyes or the scattering of German (I think) throughout, I'm having trouble figuring out what you're trying to do here.

Are you trying to use the script to send a different input based on which of your 5 hardware buttons you press?

[MatzeH84]

Basically we have 5 Hvars now. Left short press, left long press, right short press, right long press and both buttons long press. I have assigned them individually to 5 buttons via FSUIPC and that works.
However I would like to try to use only two buttons and use the script to activate different Hvars depending on if the button is pressed momentarily or held (or if both buttons are pressed together), in order to operate the EDM as it would be in the real unit.