login

--Minif OS Login

--Functions
osBGImageExists = false
osUserImageExists = false
if fs.exists("/system/images/minif") then
  os_BGImage = paintutils.loadImage("/system/images/minif")
  osBGImageExists = true
end

function osPaintLockScreen()
  osFillBG(colors.black)
  if osBGImageExists then
    paintutils.drawImage(os_BGImage,1,1)
  end
  paintutils.drawFilledBox(1,1,osScreenSizeX,5,colors.white)
  paintutils.drawBox(2,4,osScreenSizeX-2,4,colors.lightGray)

  term.setBackgroundColor(colors.red)
  term.setCursorPos(osScreenSizeX-4,1)
  term.setTextColor(colors.black)
  term.write("Power")

  term.setBackgroundColor(colors.white)
  term.setTextColor(colors.black)
  term.setCursorPos(2,2)
  term.write("Username:")
end

function osInputUserName()
  term.setBackgroundColor(colors.lightGray)
  term.setCursorPos(2,4)
  osEnteredUser = read()
end

function osDrawUserProfile(user)
  if fs.exists("/system/user/" .. user .. "/icon") then
    os_UserImage = paintutils.loadImage("/system/user/"..user.."/icon")
    osUserImageExists = true
    paintutils.drawImage(os_UserImage,(osScreenSizeX/2)-3,8)
  end
end

function osInputUserPassword(user)
  term.setBackgroundColor(colors.white)
  term.setTextColor(colors.black)
  term.setCursorPos((osScreenSizeX/2)-3,15)
  osEnteredPassword = read("*")
  if fs.exists("/system/user/"..user.."/.pass") then
    osPassword = fs.open("/system/user/"..user.."/.pass","r")
    if osEnteredPassword == osPassword.readAll() then
      if fs.exists("/system/desktop") then
        osPassword.close()
        shell.run("/system/desktop")
      else
        osPassword.close()
        if fs.exists("/disk/system/desktop") then
          osFillBG(colors.cyan)
          print("Found desktop file on disk")
          print("Copying file from disk...")
          fs.copy("disk/system/desktop","system/desktop")
          print("Done!")
          sleep(3)
          shell.run("/system/desktop")
        else
          osBSOD("Critical file missing.","/system/desktop is missing, and is needed to run.","Please re-install this file")
        end
      end
    else
      term.setCursorPos(2,1)
      term.setTextColor(colors.red)
      term.write("Invalid Password!")
      term.setTextColor(colors.black)
      sleep(1)
    end
    else
      osBSOD("Critical file missing.", "The user does not have a password file, and is needed to login", "You may need to re-configure the user.")
  end
end

function osCheckUser()
  if fs.isDir("/user/"..osEnteredUser) and not (osEnteredUser == "") then
    osDrawUserProfile(osEnteredUser)
    osInputUserPassword(osEnteredUser)
    osPaintLockScreen()
  else
    osPaintLockScreen()
    term.setCursorPos(2,1)
    term.setTextColor(colors.red)
    term.write("Invalid User!")
    term.setTextColor(colors.black)
  end
end

--Execution

osPaintLockScreen()

if fs.exists("/system/setupdata") then else
  if fs.exists("/system/tools/setup") then
    shell.run("/system/tools/setup")
  else
    osBSOD("Critical file missing.","/system/tools/setup is missing, and is needed to perform initial setup.","Please re-install this file")
  end
  osPaintLockScreen()
end

if fs.exists("/apps") then else
  fs.makeDir("/apps")
end

while true do
  osPEvent, osPB, osPX, osPY = os.pullEvent()
  if osPEvent == "key" then
    osInputUserName()
    osCheckUser()
  else
    if osPY == 4 then
    osInputUserName()
    osCheckUser()
    end

    if osPY == 1 and osPX >= osScreenSizeX-4 then
      os.shutdown()
    end
  end
end