cctdv3

-- argument handling
args = {...}
tInput = tostring(args[1])
tSecond = "nanburger"
tSecond = tostring(args[2])

-- find monitor
local monitor = peripheral.find("monitor")

-- prepare monitor
monitor.setBackgroundColor(colors.purple)
monitor.setTextColor(colors.cyan)
monitor.clear()
monitor.setCursorPos(1, 1)
monitor.setTextScale(2)

monSizeX = monitor.getSize(1)
monSizeY = monitor.getSize(2)

tScale = 2
while monSizeX - 1 < #tInput do
    tScale = tScale - 0.1
    monitor.setTextScale(tScale)
    monSizeX = monitor.getSize(1)
    monSizeY = monitor.getSize(2)
    print("trying ", tostring(tScale))
end

monCenterX = math.ceil(monSizeX / 2)
monCenterY = math.ceil(monSizeY / 2)

if args[2] then
    print("not nil")
    while monSizeY - 1 < #tSecond do
        tScale = tScale - 0.1
        monitor.setTextScale(tScale)
        monSizeX = monitor.getSize(1)
        monSizeY = monitor.getSize(2)
        print("trying ", tostring(tScale))
    end

    monCenterX = math.ceil(monSizeX / 2)
    monCenterY = math.ceil(monSizeY / 2)

    -- two lines
    -- line one prep
    monitor.setCursorPos(monCenterX - math.floor(#tInput / 2), monCenterY - 1)
    -- write
    monitor.write(tInput)

    -- line two prep
    monitor.setCursorPos(monCenterX - math.floor(#tSecond / 2), monCenterY)
    -- write
    monitor.write(tSecond)

else
    -- single line prep
    monitor.setCursorPos(monCenterX - math.floor(#tInput / 2), monCenterY)
    monitor.write(tInput)
end