OpenNos.GameObject.Character.SendGift C# (CSharp) Method

        public void SendGift(long id, short vnum, byte amount, sbyte rare, byte upgrade, bool isNosmall)
        {
            Item it = ServerManager.GetItem(vnum);

            if (it != null)
            {
                if (it.ItemType != ItemType.Weapon && it.ItemType != ItemType.Armor && it.ItemType != ItemType.Specialist)
                {
                    upgrade = 0;
                }
                else if (it.ItemType != ItemType.Weapon && it.ItemType != ItemType.Armor)
                {
                    rare = 0;
                }
                if (rare > 8 || rare < -2)
                {
                    rare = 0;
                }
                if ((upgrade > 10) && it.ItemType != ItemType.Specialist)
                {
                    upgrade = 0;
                }
                else if (it.ItemType == ItemType.Specialist && (upgrade > 15))
                {
                    upgrade = 0;
                }

                // maximum size of the amount is 99
                if (amount > 99)
                {
                    amount = 99;
                }

                MailDTO mail = new MailDTO()
                {
                    AttachmentAmount = it.Type == InventoryType.Etc || it.Type == InventoryType.Main ? amount : (byte)1,
                    IsOpened = false,
                    Date = DateTime.Now,
                    ReceiverId = id,
                    SenderId = id,
                    AttachmentRarity = (byte)rare,
                    AttachmentUpgrade = upgrade,
                    IsSenderCopy = false,
                    Title = isNosmall ? "NOSMALL" : "NOSTALE",
                    AttachmentVNum = vnum,
                    SenderClass = Class,
                    SenderGender = Gender,
                    SenderHairColor = HairColor,
                    SenderHairStyle = HairStyle,
                    EqPacket = GenerateEqListForPacket(),
                    SenderMorphId = Morph == 0 ? (short)-1 : (short)((Morph > short.MaxValue) ? 0 : Morph)
                };
                DAOFactory.MailDAO.InsertOrUpdate(ref mail);
                if (id == CharacterId)
                {
                    MailList.Add(((MailList.Any() ? MailList.OrderBy(s => s.Key).Last().Key : 0) + 1), mail);
                    Session.SendPacket(GenerateParcel(mail));
                    Session.SendPacket(GenerateSay($"{Language.Instance.GetMessageFromKey("ITEM_GIFTED")} {mail.AttachmentAmount}", 12));
                }
            }
        }