local keywordHandler = KeywordHandler:new()
local npcHandler = NpcHandler:new(keywordHandler)
NpcSystem.parseParameters(npcHandler)
local talkState = {}

function onCreatureAppear(cid)              npcHandler:onCreatureAppear(cid)            end
function onCreatureDisappear(cid)           npcHandler:onCreatureDisappear(cid)         end
function onCreatureSay(cid, type, msg)          npcHandler:onCreatureSay(cid, type, msg)        end
function onThink()                  npcHandler:onThink()                    end

function creatureSayCallback(cid, type, msg)
if(not npcHandler:isFocused(cid)) then
    return false
end

local talkUser = NPCHANDLER_CONVBEHAVIOR == CONVERSATION_DEFAULT and 0 or cid

local buff_str = 211100 -- Storage da missao dos buffs
local buff = {

    health = 100, -- Vida
    mana = 100, -- Mana
    req_lvl = 10, -- Level necessário
    req_item = 2160, -- Item necessário
    storage = 23123123 -- Storage do buff
}

if (msgcontains(msg, "buff")) then
    if getPlayerStorageValue(cid, buff_str) >= 1 then
        if getPlayerStorageValue(cid, buff.storage) <= 0 then
            if getPlayerItemCount(cid, buff.req_item) >= 1 then
                if getPlayerLevel(cid) >= buff.req_lvl then
                    setCreatureMaxHealth(cid, buffbuff.health)
                    setCreatureMaxMana(cid, buffbuff.mana)
                    doPlayerRemoveItem(cid, buffbuff.req_item, 1)
                    setPlayerStorageValue(cid, buffbuff.storage, 1)
                    selfSay("Voce recebeu o buff um.", cid)
                else
                    selfSay("Voce precisa de no minimo level "..buff.req_lvl..".", cid)
                end
            else
                selfSay("Voce nao possui 1 "..getItemNameById(buff.req_item)..".", cid)
            end
        else
            selfSay("Voce ja adquiriu este buff uma vez.", cid)
        end
    else
        selfSay("Voce precisa completar a missao dos buffs.", cid)
    end
    return true
end

npcHandler:setCallback(CALLBACK_MESSAGE_DEFAULT, creatureSayCallback)
npcHandler:addModule(FocusModule:new())