-- Functions
local function cprint(text)
  local x,y = term.getSize()
  local x2,y2 = term.getCursorPos()
  term.setCursorPos(math.ceil((x / 2) - (text:len() / 2)), y2)
  write(text)
end

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

local function drawscreen()
  write(user)
  write("@reactor_1> ")
  input = read()
end

local function main()
drawscreen()
if input == "help" then
  write("List of avaiable commands:\n")
  write("  start      - Start the Reactor ( Requires Elevated Privileges )\n")
  write("  stop       - Stop the Reactor ( Requires Elevated Privileges )\n")
  write("  state      - Reload Reactor State \n")
  write("  clear      - Clear the terminal\n")
  write("  networkoff - Disconnect the Reactor from the network ( Requires Super-Elevated Privileges )\n")
  write("  reboot     - Reboot this computer \n")
  write("  version    - Display the version number and copyright information\n")
  write("  quit       - Quit the program\n")
end

if input == "start" then
  if user == "root" or user == "heda" then
    rednet.open("back")
    rednet.broadcast("start_reactor_one")
    rednet.close("back")
    write("[")
    write(os.time())
    write("] Reactor Started\n")
  else
    write("You do not have the required privileges to perform this action.\n")
  end
end

if input == "stop" then
if user == "root" or user == "heda" then
    rednet.open("back")
    rednet.broadcast("stop_reactor_one")
    rednet.close("back")
    write("[")
    write(os.time())
    write("] Reactor Stopped\n")
  else
    write("You do not have the required privileges to perform this action.\n")
  end
end

if input == "state" then
end

if input == "networkoff" then
  if user == "heda" then
  clear()
  cprint("Are you SURE you wish to perform this?")
  write("\n")
  cprint("N/y>")
  input2 = read()
    if input2 == "y" then
       rednet.open("back")
       rednet.broadcast("kick_reactor_one")
       rednet.close("back")
       write("[")
       write(os.time())
       write("] Reactor Disnetworked\n")
    else
  print("Nothing was done")
  sleep(2)
  clear()
  end
  else
  write("You do not have the required privileges to perform this action.\n")
end
end

if input == "reboot" then
  write("Goodbye")
  os.reboot()
end

if input == "version" then
  write("Hiperbolt HiperReactor 0.01\n")
  write("\n")
  write("Copyright (C) 2016 hiperbolt\n")
  write("\n")
end

if input == "quit" then
  clear()
  write("Bye!\n")
  sleep(2)
  clear()
  return
end

if input == "clear" then
  clear()
end

main()
end

-- init
local tArgs = { ... }
if #tArgs < 1 then
  user = "guest"
  clear()
  write("HiperReactor by Hiperbolt 0.01. Copyright (C) 2016\n")
  main()
end

local sUser = tArgs[1]
if sUser == "root" then
  clear()
  write("Enter root password:")
  input = read("*")
  if input == "root" then
    clear()
    write("HiperReactor by Hiperbolt 0.01. Copyright (C) 2016\n")
    user = "root"
    main()
  end
elseif sUser == "heda" then
clear()
  write("Enter heda password:")
  input = read("*")
  if input == "heda" then
    clear()
    write("HiperReactor by Hiperbolt 0.01. Copyright (C) 2016\n")
    user = "heda"
    main()
  end
end