4 item automation

machine = peripheral.wrap("front")

while true do
    if(turtle.suckUp(1)) then
        oldItem = turtle.getItemDetail(1).name
        currentItem = oldItem
        print("1st item: " .. oldItem)
        turtle.drop(1)

        while (turtle.suckDown(1) == false) do
            sleep(0.1)
        end

        secondItem = turtle.getItemDetail(1).name
        print("2nd item: " .. secondItem)
        turtle.drop(1)

        turtle.turnLeft()
        while (turtle.suck(1) == false) do
            sleep(0.1)
        end

        thirdItem = turtle.getItemDetail(1).name
        print("3rd item: " .. thirdItem)
        turtle.turnRight()
        turtle.drop(1)

        turtle.turnRight()
        while (turtle.suck(1) == false) do
            sleep(0.1)
        end

        fourthItem = turtle.getItemDetail(1).name
        print("4th item: " .. fourthItem)
        turtle.turnLeft()
        turtle.drop(1)

        while (oldItem == currentItem) do
            sleep(0.1)

            while (machine.getItemDetail(1) == nil) do
                sleep(0.1)
            end

            currentItem = machine.getItemDetail(1).name
        end

        print("finished")

        x = 0
        while (turtle.suck(1)) do
            x = x + 1
        end

        turtle.turnLeft()
        turtle.turnLeft()
        turtle.drop(x)
        print("dropped amount: " .. x)
        turtle.turnRight()
        turtle.turnRight()
    end
end