std::vector<uint32> vendorItems = {
    25,
    25,
    25,
};

void SendListInventoryCustom(Player* player, uint64 vendorGuid, uint32 vendorEntry)
{
    TC_LOG_DEBUG("network.opcode", "WORLD: Sent SMSG_LIST_INVENTORY");

    Creature* vendor = player->GetNPCIfCanInteractWith(vendorGuid, UNIT_NPC_FLAG_VENDOR);
    if (!vendor)
    {
        TC_LOG_DEBUG("network.opcode", "WORLD: SendListInventory - Unit (GUID: %u) not found or you can not interact with him.", uint32(GUID_LOPART(vendorGuid)));
        player->SendSellError(SELL_ERR_CANT_FIND_VENDOR, NULL, 0);
        return;
    }

    // remove fake death
    if (player->HasUnitState(UNIT_STATE_DIED))
        player->RemoveAurasByType(SPELL_AURA_FEIGN_DEATH);

    // Stop the npc if moving
    if (vendor->HasUnitState(UNIT_STATE_MOVING))
        vendor->StopMoving();

    //VendorItemData const* vendorItems = vendor->GetVendorItems();
    //VendorItemData const* items = vendorEntry ? sObjectMgr->GetNpcVendorItemList(vendorEntry) : vendor->GetVendorItems();
    //    VendorItemData const* vendorItems = vendorEntry ? sObjectMgr->GetNpcVendorItemList(vendorEntry) : vendor->GetVendorItems();
    /*if (!vendorItems)
        {
        WorldPacket data(SMSG_LIST_INVENTORY, 8 + 1 + 1);*/
    uint16 rawItemCount = vendorItems.size(); // vendorItems ? vendorItems->GetItemCount() : 0;

    ByteBuffer itemsData(32 * rawItemCount);
    std::vector<bool> enablers;
    enablers.reserve(2 * rawItemCount);

    SetCurrentVendor(vendorEntry, GUID_LOPART(vendorGuid), GUID_HIPART(vendorGuid));

    const float discountMod = player->GetReputationPriceDiscount(vendor);
    uint16 count = 0;
    for (uint16 slot = 0; slot < rawItemCount; ++slot)
    {
        if (count == 300)
        {
            TC_LOG_ERROR("sql.sql", "Table `npc_vendor` has too many items (%u >= %i) for vendor (Entry: %u), ignore", count, MAX_VENDOR_ITEMS, vendor->GetEntry());
            break;
        }
        // VendorItem const* vendorItem = vendorItems->GetItem(slot);
        // if (!vendorItem) continue;

        // if (vendorItem->Type == ITEM_VENDOR_TYPE_ITEM)
        {
            ItemTemplate const* itemTemplate = sObjectMgr->GetItemTemplate(vendorItems[slot]);
            if (!itemTemplate)
                continue;

            /*
            uint32 leftInStock = !vendorItem->maxcount ? 0xFFFFFFFF : vendor->GetVendorItemCurrentCount(vendorItem);
            if (!player->isGameMaster()) // ignore conditions if GM on
            {
                // Respect allowed class
                if (!(itemTemplate->AllowableClass & player->getClassMask()) && itemTemplate->Bonding == BIND_WHEN_PICKED_UP)
                    continue;

                // Only display items in vendor lists for the team the player is on
                if ((itemTemplate->Flags2 & ITEM_FLAGS_EXTRA_HORDE_ONLY && player->GetTeam() == ALLIANCE) ||
                    (itemTemplate->Flags2 & ITEM_FLAGS_EXTRA_ALLIANCE_ONLY && player->GetTeam() == HORDE))
                    continue;

                // Items sold out are not displayed in list
                if (leftInStock == 0)
                    continue;
            }

            ConditionList conditions = sConditionMgr->GetConditionsForNpcVendorEvent(vendor->GetEntry(), vendorItem->item);
            if (!sConditionMgr->IsObjectMeetToConditions(player, vendor, conditions))
            {
                TC_LOG_DEBUG("condition", "SendListInventory: conditions not met for creature entry %u item %u", vendor->GetEntry(), vendorItem->item);
                continue;
            }

            int32 price = vendorItem->IsGoldRequired(itemTemplate) ? uint32(floor(itemTemplate->BuyPrice * discountMod)) : 0;

            if (int32 priceMod = player->GetTotalAuraModifier(SPELL_AURA_MOD_VENDOR_ITEMS_PRICES))
                price -= CalculatePct(price, priceMod);
            */

            ++count;
            itemsData << uint32(slot + 1);        // client expects counting to start at 1
            itemsData << uint32(itemTemplate->MaxDurability);

            /*
            if (vendorItem->ExtendedCost != 0)
            {
                enablers.push_back(0);
                itemsData << uint32(vendorItem->ExtendedCost);
            }
            else
            */
                enablers.push_back(1);
            enablers.push_back(1);                 // unk bit

            itemsData << uint32(vendorItems[slot]);
            itemsData << uint32(1);     // 1 is items, 2 is currency
            itemsData << uint32(0);
            itemsData << uint32(itemTemplate->DisplayInfoID);
            // if (!unk "enabler") data << uint32(something);
            itemsData << int32(0xFFFFFFFF);
            itemsData << uint32(itemTemplate->BuyCount);
        }
        /*
        else if (vendorItem->Type == ITEM_VENDOR_TYPE_CURRENCY)
        {
            CurrencyTypesEntry const* currencyTemplate = sCurrencyTypesStore.LookupEntry(vendorItem->item);
            if (!currencyTemplate)
                continue;

            if (vendorItem->ExtendedCost == 0)
                continue; // there's no price defined for currencies, only extendedcost is used

            ++count;
            itemsData << uint32(slot + 1);             // client expects counting to start at 1
            itemsData << uint32(0);                  // max durability

            if (vendorItem->ExtendedCost != 0)
            {
                enablers.push_back(0);
                itemsData << uint32(vendorItem->ExtendedCost);
            }
            else
                enablers.push_back(1);

            enablers.push_back(1);                    // unk bit

            itemsData << uint32(vendorItem->item);
            itemsData << uint32(vendorItem->Type);    // 1 is items, 2 is currency
            itemsData << uint32(0);                   // price, only seen currency types that have Extended cost
            itemsData << uint32(0);                   // displayId
            // if (!unk "enabler") data << uint32(something);
            itemsData << int32(-1);
            itemsData << uint32(vendorItem->maxcount);
        }
        */
        // else error
    }

    ObjectGuid guid = vendorGuid;

    WorldPacket data(SMSG_LIST_INVENTORY, 12 + itemsData.size());

    data.WriteBit(guid[1]);
    data.WriteBit(guid[0]);

    data.WriteBits(count, 21); // item count

    data.WriteBit(guid[3]);
    data.WriteBit(guid[6]);
    data.WriteBit(guid[5]);
    data.WriteBit(guid[2]);
    data.WriteBit(guid[7]);

    for (std::vector<bool>::const_iterator itr = enablers.begin(); itr != enablers.end(); ++itr)
        data.WriteBit(*itr);

    data.WriteBit(guid[4]);

    data.FlushBits();
    data.append(itemsData);

    data.WriteByteSeq(guid[5]);
    data.WriteByteSeq(guid[4]);
    data.WriteByteSeq(guid[1]);
    data.WriteByteSeq(guid[0]);
    data.WriteByteSeq(guid[6]);

    data << uint8(count == 0); // unk byte, item count 0: 1, item count != 0: 0 or some "random" value below 300

    data.WriteByteSeq(guid[2]);
    data.WriteByteSeq(guid[3]);
    data.WriteByteSeq(guid[7]);

    player->GetSession()->SendPacket(&data);
}