MCOS System - Base System - Base Menu

--this is the base menu for my new CC Tweaked OS. this menu only appears when either a crash has happened, actual menu is missing, files corrupted, or a new Boot Update is avaliable


tArg = {...}
local w,h = term.getSize()
local Reason = tArg[1]
local Page = "Login"
local User = nil
local Password = nil
local Misc1 = nil
local Misc2 = nil

function Clear()
term.clear()
term.setCursorPos(1,1)
end

function CenterText(y,text)
  local x = math.floor((w - string.len(text)) /2)
  term.setCursorPos(x,y)
  term.clearLine()
  term.write(text)
end

function SlowCenterText(y,text)
  local x = math.floor((w - string.len(text)) /2)
  term.setCursorPos(x,y)
  term.clearLine()
  textutils.slowWrite(text)
end

function GetPageData()
if Page == "Login" then
  if fs.exists("AccountLogin") == true then
    local file = fs.open("AccountLogin","r")
    User = file.readLine(1)
    Password = file.readLine(2)
    file.close()
  else
    User = "Guest"
    Password = nil
  end
elseif Page == "Menu" then

elseif Page == "Update" then

elseif Page == "Security" then

end
end

function DrawMenu()
Clear()
if Page == "Login" then
  term.setBackground(colors.cyan)
  CenterText(1,"----BASE-MENU----")
  CenterText(2,"Login Menu")
  CenterText(3,"PLEASE LOGIN TO MAIN ACCOUNT")
  term.setCursorPos(1,5)
  term.write("Username")
  term.setCursorPos(1,6)
  term.write(User)
  term.setCursorPos(1,7)
  term.write("Password")
elseif Page == "Menu" then
  term.setBackground(colors.cyan)
  CenterText(1,"---Menu---")
  CenterText(4,"1 - Updates")
  CenterText(6,"2 - Security")
  CenterText(8,"3 - Settings(WIP)")
  CenterText(10,"4 - Restart")
elseif Page == "Update" then

elseif Page == "Security" then

end
end

function UserInteraction()
if Page == "Login" then
  if User == "Guest" or Password == nil then
    term.setCursorPos(1,9)
    term.write("Please Press Enter to Continue")
    repeat
      local event, key = os.pullEvent("key")
    until key == keys.enter
    Clear()
    Page = "Menu"
    GetPageData()
    DrawMenu()
    UserInteraction()
  else
    local input = read()
    term.setCursorPos(1,8)
    while true do
      local event, key = os.pullEvent("key")
      term.write(input)
      if key == keys.enter then
        break
      end
    end
    if input == Password then
      Page = "Menu"
      Clear()
      GetPageData()
      DrawMenu()
      UserInteraction()
    else
      Clear()
      GetPageData()
      DrawMenu()
      UserInteraction()
    end
  end
elseif Page == "Menu" then
  while true do
    local event, key = os.pullEvent("key")
    if key == keys.one then
      Page = "Update"
      break
    elseif key == keys.two then
      Page = "Security"
      break
    elseif key == keys.three then
      Page = "Settings"
      break
    elseif key == keys.four then
      Page = "Reboot"
      break
    end
  end
  if Page == "Reboot" then
    os.reboot()
  else
    Clear()
    GetPageData()
    DrawMenu()
    UserInteraction()
  end
elseif Page == "Update" then

elseif Page == "Security" then

end
end

Clear()
GetPageData()
DrawMenu()
UserInteraction()