.utilities

os.pullEvent = os.pullEventRaw

local w,h = term.getSize()

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

local nOption = 1

local function drawMenu()
   term.clear()
   term.setCursorPos(1,1)
   term.write("FoxOS by FoxWorn3365  |  2020")
term.setCursorPos(1,2)
shell.run("id")

   term.setCursorPos(w-11,1)
   if nOption == 1 then
   term.write("Indietro")
elseif nOption == 2 then
   term.write("Nuovo Foglio")
elseif nOption == 3 then
   term.write("Files")
elseif nOption == 4 then
   term.write("PasteBin")
elseif nOption == 5 then
   term.write("Console")
else
end

end

--GUI
term.clear()
local function drawFrontend()
   printCentered( math.floor(h/2) - 3, "")
   printCentered( math.floor(h/2) - 2, "Utilità" )
   printCentered( math.floor(h/2) - 1, "")
   printCentered( math.floor(h/2) + 0, ((nOption == 1) and "> Torna Indietro") or "Torna Indietro" )
   printCentered( math.floor(h/2) + 1, ((nOption == 2) and "> Nuovo Foglio") or "Nuovo Foglio" )
   printCentered( math.floor(h/2) + 2, ((nOption == 3) and "> Visualizza i File") or "Visualizza i File" )
   printCentered( math.floor(h/2) + 3, ((nOption == 4) and "> Importa un Pastebin") or "Importa un Pastebin" )
   printCentered( math.floor(h/2) + 4, ((nOption == 5) and "> Usa la Console") or "Usa la Console" )
end

--Display
drawMenu()
drawFrontend()

while true do
 sleep(0.1)
 local e,p = os.pullEvent()
 if e == "key" then
  local key = p
  if key == 17 or key == 200 then

   if nOption > 1 then
    nOption = nOption - 1
    drawMenu()
    drawFrontend()
   end
  elseif key == 31 or key == 208 then
  if nOption < 5 then
  nOption = nOption + 1
  drawMenu()
  drawFrontend()
end
elseif key == 28 then
    --End should not be here!!
break
end --End should be here!!
end
end
term.clear()

--Conditions
if nOption  == 1 then
shell.run(".FoxOS/.menu")
elseif nOption == 2 then
shell.run(".FoxOS/.newpaper")
elseif nOption == 3 then
shell.run(".FoxOS/.files")
elseif nOption == 4 then
shell.run(".FoxOS/.pastebin")
elseif nOption == 5 then
shell.run(".FoxOS/.console")
else
shell.run(".FoxOS/.what")
end