Security Card Writer

-- Security Card Writer
-- Requires Security Card API

--checks if the card API is loaded If not tries to load it and if that fails throws an error
if(not card)then
    if(os.loadAPI("card")~=true)then
        error("This program needs the security card API")
    end
end
local event, side
term.clear()
term.setCursorPos(1,1)
while true do
    print("Please insert a disk to be written to")
    --pullEventRaw stops them from pressing Ctrl-T to terminate
    event, side = os.pullEventRaw("disk")
    if disk.hasAudio(side) then
        print("Wrong disk type")
        print("Press any key to continue...")
        os.pullEventRaw("key")
    else
        break
    end
end


print("What should the base level be?")
local lvl1 = read()
print("What should the secondary level be?")
local lvl2 = read()
print("What should the password be?")
local pass = read()
term.scroll(1)
term.write("Writing")
textutils.slowPrint("...")
card.setDiskLevel(side, lvl1, lvl2, pass)
print("Card has been named:\n Level: "..lvl1.."-"..lvl2.." Card")
print("Your new security card will be ejected now")
disk.eject(side)
os.unloadAPI("card")
--Good Programming Practice :)