db

local lib = require("lib")
local pd = peripheral.find("playerDetector")
local filename = "db.txt"

local debug = 0
local username = "Bob"

function getPlayerName()
  local _player = pd.getPlayersInRange(5)
  -- Get the name of the player in index one of table 'player'
  return _player[1]
end


function findPlayer(_player)
  local _file = fs.open(filename,"r")
  local _data = textutils.unserialize(_file.readAll())
  for k,v in pairs(_data) do
    print(k,v)
    if _player == k then print("Found",_player) return true,k,v end
  end
  _file.close()
  return false
end

function updatePlayer(_player)
  local _DBfile = fs.open(filename,"r")
  local database = textutils.unserialize(_DBfile.readAll())
  _DBfile.close()
  local _file = fs.open(filename,"w")
  database[_player] = lib.getCurrentDate()
  local _tbl = textutils.serialize(database)
  _file.writeLine(_tbl)
  _file.close()
end

-- function updatePlayerDate(_player)
  -- local _DBfile = fs.open(filename,"r")
  -- local database = textutils.unserialize(_DBfile.readAll())
  -- _DBfile.close()
  -- database[_player] = lib.getCurrentDate()


-- Main Code Begins
print("Waiting for redstone signal")
local event = os.pullEvent("redstone") -- Wait for redstone signal
print("Detected Signal")
sleep(2)
local player

if debug == 1 then
  player = username
else
  player = getPlayerName()
end
print("Detected player:",player)
-- Find player in db
if findPlayer(player) then
  local success,k,v = findPlayer(player)
  if v < lib.getCurrentDate() then
    print("Player is able to play, updating date")
    updatePlayer(player)
    -- Update player in db
  else
    print("You've already played today!")
  end
  --print(k,v)
else
  print("Player not found! Adding player to 'db'...")
  updatePlayer(player)
  -- Player is able to play
end
-- If player is found in db, update 'last date played'

-- If player is not found in db, add player to db
-- Main Code Ends