sys/lib/core

function DerpyOS_System_GetName()
  shell.run("/sys/etc/config")
  return DerpyOS_Config_SystemName
end


sys/lib/display

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

function DerpyOA_Display_ShowBanner()
  tx, ty = term.getSize()
  ts = (tx - 27) / 2
  space = ""
  while ts > 0 do space = space .. " "; ts = ts - 1; end
  print(space.."
  print(space.." |
  print(space.." |_/ (/_ |  |_) \\/ \\_/ __) ")
  print(space.."            |              ")
  print(space.." Version 0.1 : by akiwiguy ")
  print(space.."---------------------------")
end


sys/lib/rc

shell.run("/sys/lib/core")
shell.run("/sys/lib/display")
DerpyOS_Display_Clear()
DerpyOS_Display_ShowBanner()
shell.run("/sys/etc/config")
t = DerpyOS_Config_Modules()
for i=1,# t do
  term.write("Loading module " .. t[i])
  shell.run("/sys/lib/" .. t[i])
  x, y = term.getCursorPos()
  tx, ty = term.getSize()
  term.setCursorPos(tx - 6, y)
  print("[ OK ]")
end

if DerpyOS_Shell_Main == nil then
  print(":: Shell not loader, dropping to debug")
  shell.run("shell")
else
  DerpyOS_Shell_Main()
end


sys/lib/shell

function DerpyOS_Shell_Main()
  while true do
    term.write(DerpyOS_Shell_ReadPS1())
    l8ine = io.read()
    if line == "!break" then
      break
    elseif line == "reboot" then
      shell.run("reboot")
    elseif line == "shutdown" then
      shell.run("shutdown")
    else
      print("shell: invalid command")
    end
  end
end

function DerpyOS_Shell_ReadPS1()
  handle = fs.open(DerpyOS_User_GetUserProfileDir() .. "/config/shellPS1", "r")
  prompt = handle.readLine()
  handle.close()
  prompt = prompt:gsub(" ::u", DerpyOS_User_GetUsername()
  prompt = prompt:gsub("::l", Derpy_System_GetName())
  return prompt
end


/sys/lib/user

function DerpyOS_User_GetUsername()
  return "user"
end

function DerpyOS_User_GetUserProfileDir()
  return "/user/" .. DerpyOS_User_GetuserName() .. "/"
end


sys/etc/config

-- DerpyOS Global Configuration --

-- Name of computer --
DerpyOS_Config_Systemname = "name"

-- modules to load on bootup --
DerpyOS_Config_Modules = { "user", "shell" }