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

npcHandler:setMessage(MESSAGE_GREET, "Hello |PLAYERNAME|. I am specialized in boots, especially in {soft boots}.")

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 newboots = 2640

    if(msgcontains(msg, 'soft') or msgcontains(msg, 'boots')) then
        selfSay('Do you want to repair your worn soft boots for 10000 gold coins?', cid)
        talkState[talkUser] = 1
    elseif(msgcontains(msg, 'yes') and talkState[talkUser] == 1) then
        if (getPlayerItemCount(cid, 10021) >= 1) then
            if (doPlayerRemoveMoney(cid, 10000)) then
                doPlayerRemoveItem(cid, 10021, 1)
                doPlayerAddItem(cid, newboots)
            end
            selfSay('Here you are.', cid)
        elseif (getPlayerItemCount(cid, 2640) >= 1)then
            if (doPlayerRemoveMoney(cid, 10000)) then
                doPlayerRemoveItem(cid, 2640, 1)
                doPlayerAddItem(cid, newboots)
            end
            selfSay('Here you are.', cid)
        elseif (getPlayerItemCount(cid, 6530) then
            if (doPlayerRemoveMoney(cid, 10000)) then
                doPlayerRemoveItem(cid, 6530, 1)
                doPlayerAddItem(cid, newboots)
                    end
            selfSay('Here you are.', cid)
        else
            selfSay('Sorry, you don\'t have enough gold.', cid)
        end

        talkState[talkUser] = 0
    elseif(msgcontains(msg, 'no') and isInArray({1}, talkState[talkUser]) == TRUE) then
        talkState[talkUser] = 0
        selfSay('Ok then.', cid)
    end

    return true
end

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