ox_lib/resource/interface/client/skillcheck.lua

local skillcheck
local gameCount = 0
local gameDifficulty
local gamePromise

local function resolveSkillCheck(success)
    skillcheck:resolve(success)
    skillcheck = nil
    SetNuiFocus(false, false)
end

function lib.skillCheck(difficulty)
    if skillcheck then return end
    skillcheck = promise:new()
    gameDifficulty = difficulty
    SetNuiFocus(true, false)
    if type(difficulty) == 'table' then
        gameCount = 0
        for i = 1, #difficulty do
            gamePromise = promise:new()
            SendNUIMessage({
                action = 'startSkillCheck',
                data = difficulty[i]
            })
            if not Citizen.Await(gamePromise) then
                gamePromise = nil
                break
            end
        end
    else
        SendNUIMessage({
            action = 'startSkillCheck',
            data = difficulty
        })
    end
    return Citizen.Await(skillcheck)
end

RegisterNUICallback('skillCheckOver', function(data, cb)
    cb(1)
    if not gamePromise then return resolveSkillCheck(data.success) end
    gamePromise:resolve(data.success)
    if not data.success then return resolveSkillCheck(data.success) end
    gameCount += 1
    if gameCount == #gameDifficulty then
        resolveSkillCheck(data.success)
    end
end)