CarpetBackup

local modem = peripheral.wrap("right")  -- Wrap the modem on the right side.
modem.open(25813)  -- Open channel 25813

local seed = os.time() * os.getComputerID()

term.clear()
term.setCursorPos(1, 1)
print("Emergency System")
print("Seed: " .. seed)

math.randomseed(seed)

while true do
    local event, side, channel, replyChannel, message, distance = os.pullEvent("modem_message")
    print("Received message: " .. message)

    local args = {}
    for word in string.gmatch(message, "%S+") do  -- Split the message into words
        table.insert(args, word)
    end
    local command = table.remove(args, 1)  -- Remove the first element as the command

    local count = tonumber(args[1]) or 1  -- Default count is 1 if no amount specified
    local slot = tonumber(args[1]) or 1  -- Default slot is 1 if no slot specified

    if command == "update" then
        modem.closeAll()
        local code = message:sub(8)  -- Ensure this starts at the correct index
        local file = fs.open("startup", "w")  -- Open (or create) startup.lua for writing

        if file then
            file.write(code)  -- Write the received code to the file
            file.close()  -- Ensure the file is closed after writing
            print("Updated startup script. Rebooting soon...")
        else
           print("Failed to open file for writing.")
           return  -- Exit or handle error appropriately
        end

        -- Generate a random wait time between 1 and 10 seconds
        local waitTime = math.random(1, 10)
        os.sleep(waitTime)  -- Wait for the randomly generated time

        -- Reboot the system
        os.reboot()
    else
        print("Unknown command: " .. command)
    end
end