MenuPassW

local Version = "1.0.0"
local ComputerVersion = "1.0.0"

local System = os -- Used for System things like os.time() to System.time()
local Screen = term -- Used for Screen thing on the turtle or computer like term.clear() to Screen.clear()
local Per = peripheral -- Used shortcut for peripheral
local Text = textutils -- Used shortcut for textilils
local Pack = Text.serialize -- Makes a new command for packing ( shortcut used from local Text)
local UnPack = Text.unserialize -- Makes a new command for unpacking ( shortcut used from local Text)

local OldpullEvent = System.pullEvent
System.pullEvent = System.pullEventRaw

local file = fs.exists("/API/Functions.lua")

if not(file) then

    shell.run("pastebin get sujHjqXC /API/Functions.lua")

end

System.loadAPI("/API/Functions.lua")

local Modem = Per.wrap(Functions.FindWirelessModem())
local Send = Modem.transmit
Modem.closeAll()

local Monitor = Per.wrap(Functions.FindMonitor())

local Computer = { ComputerName = "Test_Computer",
                Status = true,
                LogOn = false,
}

System.setComputerLabel(Computer.ComputerName)

function DelTemp()

    Functions.DelFile("OS/Temp")

end

function Temp()

    local Data = Functions.LoadFile("OS/Temp/Temp.Tem")

    if Data then

        Computer.ComputerName = Data.ComputerName
        Computer.LogOn = Data.LogOn
        Computer.Status = Data.Status
        Computer.UserName = Data.UserName

    end

end

function Startup()

    if not(Modem) then

        print("No WirelessModem Found !")
        error()

    end

    Temp()

end

Screen.clear()
Screen.setCursorPos(1, 1)

Startup()

local w, h = Screen.getSize()
local NameLen = 17
local nOption = 1
local MaxOptions = 4

function drawScreen()

    Screen.clear()

    if pocket then

        Screen.setCursorPos(1, 1)
        Screen.write("User : "..Computer.UserName)
        Screen.setCursorPos(1, 2)
        Screen.write(Computer.ComputerName)

        Screen.setCursorPos(1, 3)

    else

        Screen.setCursorPos(1, 1)
        Screen.write("User : "..Computer.UserName)
        Screen.setCursorPos(1, 2)
        Screen.write(Computer.ComputerName)

        Screen.setCursorPos(w-(NameLen+3), 1)

    end

    if nOption == 1 then

        Screen.write("Prog's")

    elseif nOption == 2 then

        Screen.write("Shell Command")

    elseif nOption == 3 then

        Screen.write("Shutdown")

    elseif nOption == 4 then

        Screen.write("Uninstall OS")
    else

    end

    Functions.printCentered(math.floor(h/2) -3, "")
    Functions.printCentered(math.floor(h/2) -2, Functions.PadString("  Head Menu",NameLen))
    Functions.printCentered(math.floor(h/2) -1, "")
    Functions.printCentered(math.floor(h/2) +0, ((nOption == 1) and string.format("%s%s",Functions.PadString("[ Prog's",NameLen-1),"]") or Functions.PadString("  Prog's",NameLen)))
    Functions.printCentered(math.floor(h/2) +1, ((nOption == 2) and string.format("%s%s",Functions.PadString("[ Shell Command",NameLen-1),"]") or Functions.PadString("  Shell Command",NameLen)))
    Functions.printCentered(math.floor(h/2) +2, ((nOption == 3) and string.format("%s%s",Functions.PadString("[ Shutdown",NameLen-1),"]") or Functions.PadString("  Shutdown",NameLen)))
    Functions.printCentered(math.floor(h/2) +3, ((nOption == 4) and string.format("%s%s",Functions.PadString("[ Uninstall OS",NameLen-1),"]") or Functions.PadString("  Uninstall OS",NameLen)))

end

function onEnter()

    if nOption == 1 then

        shell.run("OS/.Progs")
        Screen.clear()

    elseif nOption == 2 then

        System.pullEvent = OldpullEvent

        Computer.Status = false

    elseif nOption == 3 then

        DelTemp()
        System.shutdown()

    elseif nOption == 4 then

        shell.run("OS/Uninstall")
        error()

    end

end

repeat

    drawScreen()

    local Event, p1, p2, p3, p4, p5 = System.pullEvent()

    if Event == "key" then

        if p1 == keys.up or p1 == keys.numPad8 then

            if nOption > 1 then

                nOption = nOption - 1

            end

        elseif p1 == keys.down or p1 == keys.numPad2 then

            if nOption < MaxOptions then

                nOption = nOption + 1

            end

        elseif p1 == keys.enter or p1 == keys.numPadEnter then

            onEnter()

        end

    end

until Computer.Status == false

Screen.clear()
Screen.setCursorPos(1, 1)
print("Type 'Back' to go back to the menu.")