local config = {
    newNameLength = {4, 20},
	itemid = 8189
}

local allowed = {
	"a","b","c","d","e","f","g","h","i",
	"j","k","l","m","n","o","p","q","r",
	"s","t","u","v","w","x","y","z"," "
}

--[[
local array = {
	"-","1","2","3","4","5","6","7","8","9","0",
	"<",">","/","|","~","!","@","#","$","%","^",
	"&","*","(",")","_","=",",",".","gm","[","]",
	"admin","adm","owner","cm"
}
]]

function setPlayerName(cid, currentName, newName)
  if not isPlayer(cid) then return false end
  doRemoveCreature(cid)
  db.executeQuery(string.format('UPDATE `players` SET `name` = %s WHERE name = %s;', db.escapeString(newName), db.escapeString(currentName)))
  return true
end

function onSay(cid, words, param, channel)
checkExhausted(cid, 1000, 5) -- zawed el line da ta7t kol function onSay
  if (param == '') then
    doPlayerSendCancel(cid, 'Command requires param')
    return true
  end
  
  if getPlayerItemCount(cid,8189) < 1 then
		doPlayerSendCancel(cid,"You Dont Have Change Name Item")
		doSendMagicEffect(getThingPos(cid), CONST_ME_POFF)
		return true
	end

  if not param then
    doPlayerSendCancel(cid, string.format('Use: %s  <newname>', words))
    return true
  end

	for j = 1, #param do
		if inArray(allowed, param:sub(j,j):lower()) == false then
		    	doPlayerSendCancel(cid, "The name contains invalid words or characters.")
		    	return true
		end
	end

--[[
	if string.find(param,"1") or string.find(param,"2") or string.find(param,"1") or string.find(param,"3") or string.find(param,"4") or string.find(param,"5") or 
		string.find(param,"6") or string.find(param,"7") or string.find(param,"8") or string.find(param,"9") or string.find(param,"0") or string.find(param,"-") or
		string.find(param,"=") or string.find(param,"<") or string.find(param,">") or string.find(param,"/") or string.find(param,"&") or string.find(param,"@") then
		doPlayerSendCancel(cid, "This Name Is Invalid")
		return true
	end
]]

  local length = string.len(param)
  if math.min(math.max(length, config.newNameLength[1]), config.newNameLength[2]) ~= length then
    doPlayerSendCancel(cid, string.format('New name has to be between %i and %i characters long.', config.newNameLength[1], config.newNameLength[2]))
    return true
  end
  
  doPlayerRemoveItem(cid,8189,1)
  setPlayerName(cid, getPlayerName(cid),param)
  return true
end

function inArray(array, item)
	for i = 1, #array do
		if array[i] == item then 
			return true
		end
	end
	return false
end