Computercraft JarvOS

--Normally requires Peripherals Plus One, but can be heavily modified for console usage.
--Made by bryceio
local chat = peripheral.wrap("left")
local playerdetector = peripheral.wrap("right")
local commands = {}
local newcommand = {}
local blacklist = {}
local admins = {"bryceio"}
local responsetable = {}
local event, player, input = os.pullEvent("chat")
local i = 1
local x = 1
local y = 1
local admin = false
rednet.open("back")

for i = 1,#blacklist do
    if blacklist[i] == player and player ~= "bryceio" then
        sleep(0.5)
        chat.say("Access Denied")
            console = fs.open("log", "a")
              console.writeLine(player.." tried to access Jarvis")
              console.close()
        shell.run("JarvOS")
    end
end

i = 1

for i = 1,#input do
    temp = input:sub(i, i)
    if temp == " " then
        commands[x] = table.concat(newcommand)
        newcommand = {}
        x = x + 1
        y = 1
    else
        newcommand[y] = temp
        y = y + 1
    end
end

commands[x] = table.concat(newcommand)
newcommand = {}
i = 1
x = 1
y = 1
sleep(0.5)


if commands[1] == "Jarvis" or commands[1] == "jarvis" or commands[1] == "Jarvis," or commands[1] == "jarvis," then
    console = fs.open("log", "a")
    console.writeLine(player..": "..table.concat(commands, " "))
    console.close()
    admins[#admins+1] = "bryceio"
    if commands[2] == "Say" or commands[2] == "say" then
        x = 1
        for i = 3,#commands do
            responsetable[x] = commands[i]
            x = x + 1
        end
        response = table.concat(responsetable, " ")
        chat.say(response)
    elseif commands[2] == "Play" or commands[2] == "play" then
        if fs.exists("playdisc") then
            shell.run("playdisc "..commands[3])
            chat.say("Playing "..commands[3])
        end
    elseif commands[2] == "Stop" or commands[2] == "stop" then
        if commands[3] == "Music" or commands[3] == "music" then
            rednet.broadcast("cease", "JarvOS Music Stop")
            chat.say("Stopping music.")
        elseif commands[3] == "Shuffle" or commands[3] == "shuffle" then
            rednet.broadcast("cease", "JarvOS Shuffle Stop")
            chat.say("Stopping shuffle.")
        end
    elseif commands[2] == "Shuffle" or commands[2] == "shuffle" then
            rednet.broadcast("shuffle", "JarvOS Music Shuffle")
            chat.say("Shuffling music.")
    elseif commands[2] == "What" or commands[2] == "what" then
        if commands[3] == "Time" or commands[3] == "time" then
            if os.time() <= 12 then
                chat.say(tostring(os.time())..":00 AM")
            else
                chat.say(tostring(os.time()-12)..":00 PM")
            end
        end
    elseif commands[2] == "Who" or commands[2] == "who" then
        if commands[3] == "Is" or commands[3] == "is" then
            if commands[4] == "Nearby" or commands[4] == "nearby" or commands[4] == "Near" or commands[4] == "near" then
                players = playerdetector.getNearbyPlayers(64)
                for i = 1,#players do
                    players[i] = players[i].player
                end
                chat.say(table.concat(players, ", "))
            end
        end
    elseif commands[2] == "Take" or commands[2] == "take" then
        if commands[3] == "A" or commands[3] == "a" then
            if commands[4] == "Note" or "note" then
                if fs.exists("takenotes") then
                    shell.openTab("takenotes "..player)
                end
            end
        end
    elseif commands[2] == "Admin" or commands[2] == "admin" then
        for i = 1,#admins do
            if admins[i] == player then
                admin = true
            end
        end
        if admin == true then
            chat.say("Access granted.")
            if commands[3] == "Reboot" or commands[3] == "reboot" then
                sleep(1.5)
                chat.say("Rebooting")
                os.reboot()
            elseif commands[3] == "Terminate" or commands[3] == "terminate" then
                sleep(1.5)
                chat.say("Shutting down JarvOS.")
                error()
            elseif commands[3] == "Lockdown" or commands[3] == "lockdown" then
                sleep(1.5)
                chat.say('Are you sure? Type "Yes" to confirm or "No" to cancel.')
                admin = false
                repeat
                    event, player, message = os.pullEvent("chat")
                    if message == "Yes" or message == "yes" or message == "No" or message == "no" then
                        for i = 1,#admins do
                            if admins[i] == player then
                                admin = true
                            end
                        end
                    end
                until admin == true
                if message == "Yes" or message == "yes" then
                    sleep(1)
                    chat.say("Going into system lockdown.")
                    if fs.exists("lockdown") then
                        shell.run("lockdown")
                    end
                elseif message == "No" or message == "no" then
                    sleep(1)
                    chat.say("Lockdown cancelled.")
                end
            end
        else
            chat.say("Access denied.")
        end
    end
    shell.run("JarvOS")
else
    shell.run("JarvOS")
end