local component = require("component")
local term = require("term")
local sides = require("sides")

local rs = component.redstone
local gpu = component.gpu
local cursorh = 1
local w,h = gpu.getResolution()

function write(str)
 io.write(str,"\n")
 cursorh = cursorh + 1
 if cursorh >= h then
  term.clear()
  cursorh = 1
 end
end

----Config----

local users = {polis = 1,holm = 2}
local passwords = {polis = "admin",holm = "admin"}

local reactorsides = {top = sides.top,right = sides.right} -- defines the states
local enabledreactors = {top = rs.getInput(reactorsides.top) > 1,right = rs.getInput(reactorsides.right) > 1} -- Gets the enabled reactors and stuff

function reactortoggle(side)
 if enabledreactors[side] then
  enabledreactors[side] = not enabledreactors[side]
  rs.setOutput(side,0)
 else
  enabledreactors[side] = not enabledreactors[side]
  rs.setOutput(side,15)
 end
end

local commands = { -- the commands the user can input

 startreactor = function(level,args)
  if level > 1 then -- checks if user has enought permission
   reactortoggle(args[1])
  else
   write("insufficient permission")
  end
 end,

 logoff = function() login() end,

 exit = function() os.exit() end
}


local logeduser
function login()
 logeduser = nil
 while true do

  term.clear()
  cursorh = 1
  write("BNK-SYSTEM AND PROTECTION SECURITY")
  write("Please enter the username : ")

  term.setCursor(29,cursorh)
  local username=io.read()

  if users[username] then -- if user found ask password

   write("Please enter the password : ")
   term.setCursor(29,cursorh)

   local password=io.read()

   if password == passwords[username] then -- if password matches then break of the loop to go to the next one
    logeduser = username
    write("Logged in succesfully")
    break
   else
    write("Login failed")
    os.sleep(1)
   end
  else
   write("no user found")
  end
 end
end


while true do

 term.clear()
 cursorh = 1
 write("BNK-SYSTEMS REACTOR CONTROL")
 term.setCursor(1,cursorh)
 local command = io.read()

 local commandname = command:match("%w+") -- splits the command into commands and arguments

 local action = commands[commandname] -- caches the command

 if action then -- checks if command exists
  local args = {} -- Split the command into arguments
  for arg in command:gmatch("%s+(%S+)") do
   args[#args] = arg
  end
  action(users[logeduser],args) -- execute the action
 end
 os.sleep(1)

end