-- Alternative shell from CraftOS shell

termutils = {}

termutils.clear = function()
  term.clear()
  term.setCursorPos(1,1)
end

termutils.clearColor = function()
  term.setTextColor(colors.white)
  term.setBackgroundColor(colors.black)
end

function checkDisk()
  if not fs.exists("/disk/") then
    print("No disk found. Running no-os...")
    shell.run("no-os")
    return false -- Disk is not found
  end
  return true -- Disk is found
end

function input()
  term.setTextColor(colors.yellow)
  local dir = shell.dir().."".."> "
  write(dir)
  termutils.clearColor()
  local command = io.read()

  if command and command ~= "" then
    shell.run(command)
  end
end

termutils.clear()
print("Doggy OS has booted without any issues")

while true do
  if not checkDisk() then
    break -- Exit the loop if no disk is found
  end

  input() -- Only prompt for input if disk is found
end