---- By: Goodle

-- Variables
width, height = term.getSize()

CnWidth = width / 2
CnHeight = height / 2

time = os.time()
formattedTime = textutils.formatTime( time, false)

isMenu = false
isDesktop = false
isStartup = false

-- Functions

function time()
  return textutils.formatTime(os.time(), true)
end

startup = function()
  isStartup = true
  term.clear()
  term.setCursorPos(CnWidth-5,height-1)
  term.setTextColour( colours.blue )
  term.write("WaffgoOS by")
  term.setCursorPos(CnWidth-20,height)
  term.write("Goodle Software - In cooperation with CPGGC")
  term.setCursorPos(CnWidth-3,CnHeight-1)
  term.setTextColour( colours.lightBlue )
  term.write("Loading")
  term.setCursorPos(CnWidth-6,CnHeight)
  term.write(";")
  term.setCursorPos(CnWidth+6,CnHeight)
  term.write(";")
  term.setBackgroundColour( colours.black )
  term.setCursorPos(CnWidth,CnHeight+1)
  term.write('0%')
  sleep(1)
  paintutils.drawLine(CnWidth-5,CnHeight, CnWidth,CnHeight, colours.green )
  term.setBackgroundColour( colours.black )
  term.setCursorPos(CnWidth-1,CnHeight+1)
  term.write("50%")
  sleep(0.5)
  paintutils.drawLine(CnWidth,CnHeight, CnWidth+4,CnHeight, colours.green )
  term.setBackgroundColour( colours.black )
  term.setCursorPos(CnWidth-1,CnHeight+1)
  term.clearLine()
  term.write("78%")
  sleep(0.3)
  term.setCursorPos(CnWidth-1,CnHeight+1)
  term.clearLine()
  term.write("80%")
  sleep(0.5)
  paintutils.drawLine(CnWidth+4,CnHeight, CnWidth+5,CnHeight, colours.green )
  term.setBackgroundColour( colours.black )
  term.setCursorPos(CnWidth-1,CnHeight+1)
  term.clearLine()
  term.write("100%")
  term.setCursorPos(CnWidth-3,CnHeight-1)
  term.clearLine()
  term.setBackgroundColour( colours.black )
  term.write("Welcome!")
  sleep(3)
  isStartup = false
  desktop()
end


desktop = function()

  isDesktop = true
  term.clear()
  pixelsDown = 1
  pixelsDownLimit = height
  -- Desktop drawing

  while pixelsDown ~= height
    do paintutils.drawLine(1,pixelsDown, width,pixelsDown, colours.white )
    pixelsDown = pixelsDown + 1
    end
  paintutils.drawLine(1,height, width,height, colours.blue )
  term.setCursorPos(1,height)
  term.setTextColour( colours.white )
  term.setBackgroundColour( colours.lime )
  term.write(' @ menu ')

  -- Clock Drawing

  term.setCursorPos(width-6,height)
  term.setTextColour( colours.white )
  term.setBackgroundColour( colours.blue )
  local mon = window.create(term.current(),width-6,height,width,height)
  local ok, err = pcall( function()
  parallel.waitForAny(
        function()
          while true do
                mon.clear()
                mon.setCursorPos(2,3)
                mon.write(time())
                sleep(1)
          end
        end,
        function()
          os.run( {}, "desktop" )
        end
        )
  end )

  while isDesktop == true do
    term.setBackgroundColour( colours.white )
    term.setCursorPos(0,0)
    term.setCursorBlink(false)
    local event, click, x, y = os.pullEvent("mouse_click")
    if x == 2 then
      if y == height then
      break
      end
    end
  end
end

drawWindow = function()
  term.clear()
end


drawMenu = function()
  isMenu = true
  local menuPD = 2 -- Menu pixels down
  local menuPDL = height-1 -- Menu pixels down limit
  local menuPUL = height-10 -- Menu pixels up limit
  -- Menu pixels right limit is = 15
  while menuPD < menuPDL do
    paintutils.drawLine(1, menuPUL, 15, menuPUL, 400 )
    menuPUL = menuPUL + 1
    menuPD = menuPD + 1
  end -- Dimensions of menu: w-15 from left, h-9 from height - 1
  term.setCursorPos(1,height)
  term.setTextColour( colours.white )
  term.setBackgroundColour( colours.green )
  term.write(" @ menu ")

  paintutils.drawLine(9,height, 15,height, colours.blue )
  term.setCursorPos(2,height-1)
  term.setBackgroundColour( 400 )
  term.setTextColour( colours.yellow )
  term.write("@ Exit") -- Logoff button
  term.setCursorPos(2,height-2)
  term.setTextColour( colours.red )
  term.write("@ Shutdown") -- Shutdown button
  term.setCursorPos(2,height-3)
  term.setTextColour( colours.green )
  term.write("@ TMNET") -- Shutdown button

  term.setBackgroundColour( colours.white )
  while isMenu == true do
    local event, click2, x, y = os.pullEvent("mouse_click")
    if x == 2 and y == height then
        isMenu = false
        desktop()
        break
    end
    if x == 2 then
      if y == height-1 then
        isMenu = false
        isStartup = false
        isDesktop = false
        exit()
      end
   end
   if x == 2 then
     if y == height-2 then
        os.shutdown()
      end
   end
   if x == 2 then
     if y == height-3 then
        shell.run("web")
        isMenu = false
        desktop()
        break
      end
   end
  end
end

exit = function()
  term.clear()
  term.setBackgroundColour(colours.black)
  term.setTextColour(colours.white)
  term.setCursorPos(1,1)
  term.clear()
end
-- Program execution

startup()

drawMenu()

while isDesktop == true do
  drawMenu()
end