/* 
* Processes the external mail queue
 */
void WorldSession::SendExternalMails()
{
    sLog.outString("<EXTERNAL MAIL> Send Mails from Queue...");
    QueryResult *result = CharacterDatabase.Query("SELECT id,receiver,subject,message,money,item,item_count FROM mail_external");
    if(!result)
    {
        sLog.outString("<EXTERNAL MAIL> No Mails in Queue.");
        delete result;
        return;
    }
 
    do
    {
        Field *fields = result->Fetch();
        uint32 id = fields[0].GetUInt32();
        uint64 receiver_guid = fields[1].GetUInt64();
        std::string subject = fields[2].GetString();
        std::string message = fields[3].GetString();
        uint32 money = fields[4].GetUInt32();
        uint32 ItemID = fields[5].GetUInt32();
        uint32 ItemCount = fields[6].GetUInt32();
 
        if (Player *receiver = sObjectMgr.GetPlayer(receiver_guid))
        {
            sLog.outString("<EXTERNAL MAIL> Sending mail to %u, Item: %u", receiver_guid, ItemID);

            if (ItemID && ItemCount < 1)
            {
                sLog.outString("<EXTERNAL MAIL> Warning: invalid ItemCount of %u, setting to 1", ItemCount);
                ItemCount = 1;
            }
            Item* ToMailItem = ItemID ? Item::CreateItem(ItemID, ItemCount, receiver) : NULL;
 
            if (ToMailItem)
            {
                ToMailItem->SaveToDB();
 
                MailDraft(subject, message)
                    .AddItem(ToMailItem)
                    .SetMoney(money)
                    .SendMailTo(MailReceiver(receiver), MailSender(MAIL_NORMAL, uint32(0), MAIL_STATIONERY_GM), MAIL_CHECK_MASK_RETURNED);
            }
            else
            {
                MailDraft(subject, message)
                    .SetMoney(money)
                    .SendMailTo(MailReceiver(receiver), MailSender(MAIL_NORMAL, uint32(0), MAIL_STATIONERY_GM), MAIL_CHECK_MASK_RETURNED);
            }
            CharacterDatabase.PExecute("DELETE FROM mail_external WHERE id=%u", id);
        }
        else
            sLog.outString("<EXTERNAL MAIL> Player %u not in game, skip mail!", receiver_guid);
    } while(result->NextRow());
 
    delete result;
    sLog.outString("<EXTERNAL MAIL> All Mails Sent.");
} 

void WorldSession::SendExternalMails()
{
    sLog.outDebug("External Mail - Send Mails from Queue...");
    QueryResult_AutoPtr result = CharacterDatabase.Query("SELECT id,receiver,subject,message,money,item,item_count FROM mail_external");
        if (!result)
        {
            sLog.outDebug("External Mail - No Mails in Queue...");
            return;
        }
        else
        {
            do
            {
                Field *fields = result->Fetch();
                uint32 id = fields[0].GetUInt32();
                uint64 receiver_guid = fields[1].GetUInt64();
                std::string subject = fields[2].GetString();
                std::string message = fields[3].GetString();
                uint32 money = fields[4].GetUInt32();
                uint32 ItemID = fields[5].GetUInt32();
                uint32 ItemCount = fields[6].GetUInt32();

                Player *receiver = objmgr.GetPlayer(receiver_guid);

                if (receiver != 0)
                {
                    sLog.outDebug("External Mail - Sending mail to %llu, Item:%u", receiver_guid, ItemID);
                    uint32 itemTextId = !message.empty() ? objmgr.CreateItemText(message) : 0;
                    if (ItemID != 0)
                    {
                        Item* ToMailItem = Item::CreateItem(ItemID, ItemCount, receiver);
                        ToMailItem -> SaveToDB();

                        MailDraft(subject, itemTextId)
                            .AddItem(ToMailItem)
                            .AddMoney(money)
                            .SendMailTo(MailReceiver(receiver), MailSender(MAIL_NORMAL, 0, MAIL_STATIONERY_GM), MAIL_CHECK_MASK_RETURNED);
                    }
                    else
                    {
                        MailDraft(subject, itemTextId)
                            .AddMoney(money)
                            .SendMailTo(MailReceiver(receiver), MailSender(MAIL_NORMAL, 0, MAIL_STATIONERY_GM), MAIL_CHECK_MASK_RETURNED);
                    }
                    CharacterDatabase.PExecute("DELETE FROM mail_external WHERE id=%u", id);
                }
            }
            while(result -> NextRow());
        }
    sLog.outDebug("External Mail - All Mails Sent...");
}

bool GuildTaskMgr::SendItemAdvertisement(uint32 itemId, uint32 owner, uint32 guildId, uint32 validIn)
{
    Guild *guild = sGuildMgr->GetGuildById(guildId);
    Player* player = sObjectMgr->GetPlayerByLowGUID(owner);
    Player* leader = sObjectMgr->GetPlayerByLowGUID(guild->GetLeaderGUID());

    ItemTemplate const* proto = sObjectMgr->GetItemTemplate(itemId);
    if (!proto)
        return false;

    SQLTransaction trans = CharacterDatabase.BeginTransaction();
    ostringstream body;
    body << "Hello, " << player->GetName() << ",\n";
    body << "\n";
    body << "We are in a great need of " << proto->Name1 << ". If you could sell us ";
    uint32 count = GetTaskValue(owner, guildId, "itemCount");
    if (count > 1)
        body << "at least " << count << " of them ";
    else
        body << "some ";
    body << "we'd really appreciate that and pay a high price.\n";
    body << "The task will expire in " << formatTime(validIn) << "\n";
    body << "\n";
    body << "Best Regards,\n";
    body << guild->GetName() << "\n";
    body << leader->GetName() << "\n";

    ostringstream subject;
    subject << "Guild Task: " << proto->Name1;
    MailDraft(subject.str(), body.str()).SendMailTo(trans, MailReceiver(player), MailSender(leader));
    CharacterDatabase.CommitTransaction(trans);

    return true;
}

void BlackMarketMgr::SendAuctionWon(BMAuctionEntry* auction, SQLTransaction& trans)
{
    Player* bidder = sObjectAccessor->FindPlayer(MAKE_NEW_GUID(auction->bidder, 0, HIGHGUID_PLAYER));
    if (bidder)
    {
        WorldPacket data(SMSG_BLACK_MARKET_WON, 12);
        data << uint32(1);
        data << uint32(1);
        data << uint32(auction->bmTemplate->itemEntry);
        bidder->GetSession()->SendPacket(&data);
    }

    ItemTemplate const* itemTemplate = sObjectMgr->GetItemTemplate(auction->bmTemplate->itemEntry);
    if (!itemTemplate)
        return;

    Item* item = Item::CreateItem(auction->bmTemplate->itemEntry, auction->bmTemplate->itemCount);
    if (!item)
        return;

    item->SaveToDB(trans);

    MailDraft(auction->BuildAuctionMailSubject(BM_AUCTION_WON), auction->BuildAuctionMailBody(auction->bidder))
        .AddItem(item)
        .SendMailTo(trans, MailReceiver(bidder, auction->bidder), MailSender(auction), MAIL_CHECK_MASK_COPIED);
}

void BattleGround::SendRewardMarkByMail(Player* plr, uint32 mark, uint32 count)
{
    uint32 bmEntry = GetBattlemasterEntry();
    if (!bmEntry)
        return;

    ItemPrototype const* markProto = ObjectMgr::GetItemPrototype(mark);
    if (!markProto)
        return;

    if (Item* markItem = Item::CreateItem(mark, count, plr))
    {
        // save new item before send
        markItem->SaveToDB();                               // save for prevent lost at next mail load, if send fail then item will deleted

        int loc_idx = plr->GetSession()->GetSessionDbLocaleIndex();

        // subject: item name
        std::string subject = markProto->Name1;
        sObjectMgr.GetItemLocaleStrings(markProto->ItemId, loc_idx, &subject);

        // text
        std::string textFormat = plr->GetSession()->GetMangosString(LANG_BG_MARK_BY_MAIL);
        char textBuf[300];
        snprintf(textBuf, 300, textFormat.c_str(), GetName(), GetName());

        MailDraft(subject, textBuf)
        .AddItem(markItem)
        .SendMailTo(plr, MailSender(MAIL_CREATURE, bmEntry));
    }
}

void WorldSession::SendExternalMails()
{
	//sLog.outString("EXTERNAL MAIL> Sending mails in queue...");
	QueryResult *result = CharacterDatabase.Query("SELECT id,sender,receiver,subject,message,money,stationery FROM mail_external WHERE sent='0'");
	if (!result)
	{
		//sLog.outString("EXTERNAL MAIL> No mails in queue...");
		delete result;
		return;
	}
	else
	{
		do
		{
			Field *fields = result->Fetch();
			uint32 id = fields[0].GetUInt32();
			ObjectGuid senderGuid = ObjectGuid(fields[1].GetUInt64());
			ObjectGuid receiverGuid = ObjectGuid(fields[2].GetUInt64());
			std::string subject = fields[3].GetString();
			std::string message = fields[4].GetString();
			uint32 money = fields[5].GetUInt32();

			if (Player* Receiver = sObjectMgr.GetPlayer(receiverGuid))
			{
				//sLog.outString("EXTERNAL MAIL> Send Mail %u to Player %u...", id, receiverGuid.GetCounter());

				message = !message.empty() ? message : "Support Message";
				MailDraft draft(subject, message);

				QueryResult *result2 = CharacterDatabase.PQuery("SELECT item,count FROM mail_external_items WHERE mail_id='%u'", id);
				if (result2)
				{
					do
					{
						Field *itemfields = result2->Fetch();
						uint32 ItemID = itemfields[0].GetUInt32();
						uint32 ItemCount = itemfields[1].GetUInt32();
						Item* ToMailItem = ItemID ? Item::CreateItem(ItemID, ItemCount, Receiver) : NULL;
						if (ToMailItem)
						{
							ToMailItem->SaveToDB();
							draft.AddItem(ToMailItem);
						}
					}while(result2->NextRow());
				}
				delete result2;

				if (money)
					draft.SetMoney(money);

				draft.SendMailTo(MailReceiver(Receiver), MailSender(MAIL_NORMAL, senderGuid.GetCounter(), MAIL_STATIONERY_DEFAULT), MAIL_CHECK_MASK_RETURNED);
				CharacterDatabase.PExecute("UPDATE mail_external SET sent='1' WHERE id='%u'", id);
			}
			//else
				//sLog.outString("EXTERNAL MAIL> Player %u not in game, skip Mail!", receiverGuid.GetCounter());
		}while(result->NextRow());
	}
	delete result;
	//sLog.outString("EXTERNAL MAIL> End Load External Mails...");
}

void WorldSession::SendExternalMails()
{
    sLog->outCommand(0, "EXTERNAL MAIL> Sending mails in queue...");

    PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_GET_EXTERNAL_MAIL);
    PreparedQueryResult result = CharacterDatabase.Query(stmt);
    if (!result)
    {
        sLog->outCommand(0, "EXTERNAL MAIL> No mails in queue...");
        return;
    }

    SQLTransaction trans = CharacterDatabase.BeginTransaction();

    MailDraft* mail = NULL;

    do
    {
        Field *fields = result->Fetch();
        uint32 id = fields[0].GetUInt32();
        uint32 receiver_guid = fields[1].GetUInt32();
		ObjectGuid receiverGuid(HIGHGUID_PLAYER, receiver_guid);
        std::string subject = fields[2].GetString();
        std::string body = fields[3].GetString();
        uint32 money = fields[4].GetUInt32();
        uint32 itemId = fields[5].GetUInt32();
        uint32 itemCount = fields[6].GetUInt32();

		Player *receiver = ObjectAccessor::FindPlayer(receiverGuid);

        mail = new MailDraft(subject, body);

        if (money)
        {
            sLog->outCommand(0, "EXTERNAL MAIL> Adding money");
            mail->AddMoney(money);
        }

        if (itemId)
        {
            sLog->outCommand(0, "EXTERNAL MAIL> Adding %u of item with id %u", itemCount, itemId);
            Item* mailItem = Item::CreateItem(itemId, itemCount);
            mailItem->SaveToDB(trans);
            mail->AddItem(mailItem);
        }

        mail->SendMailTo(trans, receiver ? receiver : MailReceiver(receiver_guid), MailSender(MAIL_NORMAL, 0, MAIL_STATIONERY_GM), MAIL_CHECK_MASK_RETURNED);
        delete mail;

        stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_EXTERNAL_MAIL);
        stmt->setUInt32(0, id);
        trans->Append(stmt);

        sLog->outCommand(0, "EXTERNAL MAIL> Mail sent");
    }
    while (result->NextRow());

    CharacterDatabase.CommitTransaction(trans);
    sLog->outCommand(0, "EXTERNAL MAIL> All Mails Sent...");
}

void BlackMarketMgr::SendAuctionWon(BMAuctionEntry* auction, SQLTransaction& trans)
{
    uint64 bidderGUID = MAKE_NEW_GUID(auction->bidder, 0, HIGHGUID_PLAYER);

    Player* bidder = sObjectAccessor->FindPlayer(bidderGUID);
    if (bidder)
    {
        WorldPacket data(SMSG_BLACKMARKET_WON, 12);
        data << uint32(1);
        data << uint32(1);
        data << uint32(auction->bm_template->itemEntry);
        bidder->GetSession()->SendPacket(&data);
    }

    ItemTemplate const* itemTemplate = sObjectMgr->GetItemTemplate(auction->bm_template->itemEntry);
    if (!itemTemplate)
        return;

    Item* pItem = Item::CreateItem(auction->bm_template->itemEntry, auction->bm_template->itemCount, bidder);
    
    // Create new item in the database
    //SQLTransaction trans2 = CharacterDatabase.BeginTransaction();
    pItem->SetOwnerGUID(bidderGUID);
    pItem->SaveToDB(trans);
    //CharacterDatabase.CommitTransaction(trans2);

    MailDraft(auction->BuildAuctionMailSubject(BM_AUCTION_WON), auction->BuildAuctionMailBody(auction->bidder))
    .AddItem(pItem)
    .SendMailTo(trans, MailReceiver(bidder, auction->bidder), MailSender(auction), MAIL_CHECK_MASK_COPIED);
}

bool GuildTaskMgr::SendKillAdvertisement(uint32 creatureId, uint32 owner, uint32 guildId, uint32 validIn)
{
    Guild *guild = sGuildMgr->GetGuildById(guildId);
    Player* player = sObjectMgr->GetPlayerByLowGUID(owner);
    Player* leader = sObjectMgr->GetPlayerByLowGUID(guild->GetLeaderGUID());

    CreatureTemplate const* proto = sObjectMgr->GetCreatureTemplate(creatureId);
    if (!proto)
        return false;

    SQLTransaction trans = CharacterDatabase.BeginTransaction();
    ostringstream body;
    body << "Hello, " << player->GetName() << ",\n";
    body << "\n";
    body << "As you probably know " << proto->Name << " is wanted dead for the crimes it did against our guild. If you should kill it ";
    body << "we'd really appreciate that.\n";
    body << "The task will expire in " << formatTime(validIn) << "\n";
    body << "\n";
    body << "Best Regards,\n";
    body << guild->GetName() << "\n";
    body << leader->GetName() << "\n";

    ostringstream subject;
    subject << "Guild Task: " << proto->Name;
    MailDraft(subject.str(), body.str()).SendMailTo(trans, MailReceiver(player), MailSender(leader));
    CharacterDatabase.CommitTransaction(trans);

    return true;
}

void MailDraft::SendReturnToSender(uint32 sender_acc, uint32 sender_guid, uint32 receiver_guid )
{
    Player *receiver = sObjectMgr.GetPlayer(MAKE_NEW_GUID(receiver_guid, 0, HIGHGUID_PLAYER));

    uint32 rc_account = 0;
    if(!receiver)
        rc_account = sObjectMgr.GetPlayerAccountIdByGUID(MAKE_NEW_GUID(receiver_guid, 0, HIGHGUID_PLAYER));

    if(!receiver && !rc_account)                            // sender not exist
    {
        deleteIncludedItems(true);
        return;
    }

    // prepare mail and send in other case
    bool needItemDelay = false;

    if(!m_items.empty())
    {
        // if item send to character at another account, then apply item delivery delay
        needItemDelay = sender_acc != rc_account;

        // set owner to new receiver (to prevent delete item with sender char deleting)
        CharacterDatabase.BeginTransaction();
        for(MailItemMap::iterator mailItemIter = m_items.begin(); mailItemIter != m_items.end(); ++mailItemIter)
        {
            Item* item = mailItemIter->second;
            item->SaveToDB();                      // item not in inventory and can be save standalone
            // owner in data will set at mail receive and item extracting
            CharacterDatabase.PExecute("UPDATE item_instance SET owner_guid = '%u' WHERE guid='%u'", receiver_guid, item->GetGUIDLow());
        }
        CharacterDatabase.CommitTransaction();
    }

    // If theres is an item, there is a one hour delivery delay.
    uint32 deliver_delay = needItemDelay ? sWorld.getConfig(CONFIG_MAIL_DELIVERY_DELAY) : 0;

    // will delete item or place to receiver mail list
    if (sender_guid == auctionbot.GetAHBplayerGUID())
    {
        SendMailTo(MailReceiver(receiver,receiver_guid), MailSender(MAIL_CREATURE, sender_guid), MAIL_CHECK_MASK_RETURNED, deliver_delay);
    }
    else
    {
        SendMailTo(MailReceiver(receiver,receiver_guid), MailSender(MAIL_NORMAL, sender_guid), MAIL_CHECK_MASK_RETURNED, deliver_delay);
    }
}

void WorldSession::SendExternalMails()
{

    PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_GET_EXTERNAL_MAIL);
    PreparedQueryResult result = CharacterDatabase.Query(stmt);
    if (!result)
    {
        return;
    }

    SQLTransaction trans = CharacterDatabase.BeginTransaction();

    MailDraft* mail = NULL;

    do
    {
        Field *fields = result->Fetch();
        uint32 id = fields[0].GetUInt32();
        uint32 receiver_guid = fields[1].GetUInt32();
        std::string subject = fields[2].GetString();
        std::string body = fields[3].GetString();
        uint32 money = fields[4].GetUInt32();
        uint32 itemId = fields[5].GetUInt32();
        uint32 itemCount = fields[6].GetUInt32();

        Player *receiver = sObjectMgr->GetPlayerByLowGUID(receiver_guid);

        mail = new MailDraft(subject, body);

        if (money)
        {
            mail->AddMoney(money);
        }

        if (itemId)
        {
            Item* mailItem = Item::CreateItem(itemId, itemCount);
            mailItem->SaveToDB(trans);
            mail->AddItem(mailItem);
        }

        mail->SendMailTo(trans, receiver ? receiver : MailReceiver(receiver_guid), MailSender(MAIL_NORMAL, 0, MAIL_STATIONERY_GM), MAIL_CHECK_MASK_RETURNED);
        delete mail;

        stmt = CharacterDatabase.GetPreparedStatement(CHAR_DEL_EXTERNAL_MAIL);
        stmt->setUInt32(0, id);
        trans->Append(stmt);

    }
    while (result->NextRow());

    CharacterDatabase.CommitTransaction(trans);
}

				void fixgutschein(Player* player, uint32 belohnung, uint32 anzahl, std::string grund ){

					CharacterDatabase.PExecute("INSERT INTO item_codes (code,belohnung,anzahl,benutzt,name,benutztbar) Values ('%s','%u','%u','%u','%s','%u')", grund, belohnung, anzahl, 1, player->GetName(),1);
					Item* item = Item::CreateItem(belohnung, anzahl);
					player->GetSession()->SendNotification("Dein Code wurde generiert und die Belohnung zugesendet!");
					SQLTransaction trans = CharacterDatabase.BeginTransaction();
					item->SaveToDB(trans);
					MailDraft("Dein Gutscheincode", "Dein Code wurde erfolgreich eingeloest. Wir wuenschen dir weiterhin viel Spass auf MMOwning. Dein MMOwning-Team").AddItem(item)
						.SendMailTo(trans, MailReceiver(player, player->GetGUID()), MailSender(MAIL_NORMAL, 0, MAIL_STATIONERY_GM));
					CharacterDatabase.CommitTransaction(trans);
					DBeintrag(player->GetSession()->GetPlayer(), "fixgutschein");
					return;
				}

void GameEventMgr::SendEventMails(int16 event_id)
{
    int32 internal_event_id = mGameEvent.size() + event_id - 1;

    MailList const& mails = mGameEventMails[internal_event_id];

    for (MailList::const_iterator itr = mails.begin(); itr != mails.end(); ++itr)
    {
        if (itr->questId)
        {
            // need special query
            std::ostringstream ss;
            ss << "SELECT characters.guid FROM characters, character_queststatus "
               "WHERE (1 << (characters.race - 1)) & "
               << itr->raceMask
               << " AND characters.deleteDate IS NULL AND character_queststatus.guid = characters.guid AND character_queststatus.quest = "
               << itr->questId
               << " AND character_queststatus.rewarded <> 0";
            sMassMailMgr.AddMassMailTask(new MailDraft(itr->mailTemplateId), MailSender(MAIL_CREATURE, itr->senderEntry), ss.str().c_str());
        }
        else
            sMassMailMgr.AddMassMailTask(new MailDraft(itr->mailTemplateId), MailSender(MAIL_CREATURE, itr->senderEntry), itr->raceMask);
    }
}

void MailDraft::SendReturnToSender(uint32 sender_acc, uint32 sender_guid,
        uint32 receiver_guid, SQLTransaction& trans) {
    Player *receiver = sObjectMgr->GetPlayer(
            MAKE_NEW_GUID(receiver_guid, 0, HIGHGUID_PLAYER));

    uint32 rc_account = 0;
    if (!receiver)
        rc_account = sObjectMgr->GetPlayerAccountIdByGUID(
                MAKE_NEW_GUID(receiver_guid, 0, HIGHGUID_PLAYER));

    if (!receiver && !rc_account) // sender not exist
            {
        deleteIncludedItems(trans, true);
        return;
    }

    // prepare mail and send in other case
    bool needItemDelay = false;

    if (!m_items.empty()) {
        // if item send to character at another account, then apply item delivery delay
        needItemDelay = sender_acc != rc_account;

        // set owner to new receiver (to prevent delete item with sender char deleting)
        for (MailItemMap::iterator mailItemIter = m_items.begin();
                mailItemIter != m_items.end(); ++mailItemIter) {
            Item* item = mailItemIter->second;
            item->SaveToDB(trans); // item not in inventory and can be save standalone
            // owner in data will set at mail receive and item extracting
            PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(
                    CHAR_SET_ITEM_OWNER);
            stmt->setUInt32(0, receiver_guid);
            stmt->setUInt32(1, item->GetGUIDLow());
            trans->Append(stmt);
        }
    }

    // If theres is an item, there is a one hour delivery delay.
    uint32 deliver_delay =
            needItemDelay ?
                    sWorld->getIntConfig(CONFIG_MAIL_DELIVERY_DELAY) : 0;

    // will delete item or place to receiver mail list
    SendMailTo(trans, MailReceiver(receiver, receiver_guid),
            MailSender(MAIL_NORMAL, sender_guid), MAIL_CHECK_MASK_RETURNED,
            deliver_delay);
}

        bool OnCheck(Player* player, Unit* target)
        {
            if (!player)
                return false;

            // this is a duplicated criteria check but we need it since we are not
            // really doing any check here but just use this as a hook to send out
            // the achievement related mails.
            if (!player->GetQuestRewardStatus(_questEntry))
                return false;

            // if we are here we need to create the mail for the stupid brew of the year club
            uint32 brew_of_the_month_beers[12] = {37496, 37497, 37498, 37499, 37488, 37489, 37490, 37491, 37492, 37493, 37494, 37495}; // sep-aug
            uint32 delay = 0;
            for (uint8 iter = 0; iter < 12; ++iter)
            {
                Item* item = brew_of_the_month_beers[iter] ? Item::CreateItem(brew_of_the_month_beers[iter], 1, player) : NULL;

                // subject and text
                std::string subject = "Bräu des Monats!";
                std::string text = "Deine monatliche Bier-Lieferung befindet sich im Anhang.$B$BProst!";

                MailDraft draft(subject, text);

                SQLTransaction trans = CharacterDatabase.BeginTransaction();
                if (item)
                {
                    // save new item before send
                    item->SaveToDB(trans); // save for prevent lost at next mail load, if send fail then item will deleted

                    // item
                    draft.AddItem(item);
                }

                draft.SendMailTo(trans, player, MailSender(MAIL_CREATURE, 28329), MAIL_CHECK_MASK_HAS_BODY, delay);
                CharacterDatabase.CommitTransaction(trans);

                // TODO calculate correct send times
                delay += 30*86400;
            }
            sLog->outInfo(LOG_FILTER_TSCR, "Player %s achieved Brew of the Month Club and has 12 mails added with beer over the next 12 month.", player->GetName());
            return true;
        }

    void Belohnung(Player* player, std::string codes){
        
		PreparedStatement* selantwort = CharacterDatabase.GetPreparedStatement(CHAR_SEL_ANTWORTEN_NACH_ANTWORT);
		selantwort->setString(0, codes);
		PreparedQueryResult ergebnis = CharacterDatabase.Query(selantwort);
		
		if (!ergebnis){
			player->GetSession()->SendNotification("Deine Antwort ist nicht korrekt!");
			return;
		}

		if (ergebnis){
			Field* felder = ergebnis->Fetch();
			uint32 id = felder[0].GetUInt32();
			uint32 belohnung = felder[1].GetUInt32();
			uint32 anzahl = felder[2].GetUInt32();

			PreparedStatement* check = CharacterDatabase.GetPreparedStatement(CHAR_SEL_BEANTWORTET);
			check->setInt32(0, player->GetSession()->GetAccountId());
			check->setInt32(1, id);
			PreparedQueryResult result = CharacterDatabase.Query(check);

			if (result){
				player->GetSession()->SendNotification("Du hast die Frage schon beantwortet. Dies ist nur einmal pro Account moeglich!");
				return;
			}

			PreparedStatement* insertfrage = CharacterDatabase.GetPreparedStatement(CHAR_INS_BEANTWORTET);
			insertfrage->setInt32(0, player->GetSession()->GetAccountId());
			insertfrage->setInt32(1, id);
			CharacterDatabase.Execute(insertfrage);

			Item* item = Item::CreateItem(belohnung, anzahl);
			SQLTransaction trans = CharacterDatabase.BeginTransaction();
			item->SaveToDB(trans);
			MailDraft("Raetselbelohnung", "Du hast ein Raetsel geloest und hier ist deine Belohnung.").AddItem(item)
				.SendMailTo(trans, MailReceiver(player, player->GetGUID()), MailSender(MAIL_NORMAL, 0, MAIL_STATIONERY_GM));
			CharacterDatabase.CommitTransaction(trans);
			player->GetSession()->SendNotification("Deine Antwort war korrekt. Deine Belohnung wurde zugesandt."); 
			return;
		}

    }

				void gutscheinzusammenstellen(Player* player, uint32 belohnung, uint32 anzahl, std::string str){

					CharacterDatabase.PExecute("INSERT INTO `item_codes` (code,belohnung,anzahl,benutzt,benutztbar) Values ('%s','%u','%u','%u','%u')", str, belohnung, anzahl, 0,1);
					std::ostringstream ss;
                    std::ostringstream tt;
                    
					ss << "Dein Code lautet: " << str << " . Wir wuenschen dir weiterhin viel Spass auf MMOwning. Dein MMOwning-Team";
                    player->GetSession()->SendNotification("Dein Code wurde generiert und dir zugesendet.");
                    
                    
                    
                    tt << "Gutscheincode: " << str;
                    ChatHandler(player->GetSession()).PSendSysMessage(tt.str().c_str(),
                                                                       player->GetName());
					SQLTransaction trans = CharacterDatabase.BeginTransaction();
					MailDraft("Dein Gutscheincode", ss.str().c_str())
						.SendMailTo(trans, MailReceiver(player, player->GetGUID()), MailSender(MAIL_NORMAL, 0, MAIL_STATIONERY_GM));
					CharacterDatabase.CommitTransaction(trans);
					DBeintrag(player->GetSession()->GetPlayer(), "Gutschein zum verschenken");
					return;
				}

void MailDraft::SendReturnToSender(uint32 sender_acc, uint32 sender_guid, uint32 receiver_guid, SQLTransaction& trans)
{
    Player* receiver = ObjectAccessor::FindPlayerInOrOutOfWorld(MAKE_NEW_GUID(receiver_guid, 0, HIGHGUID_PLAYER));

    uint32 rc_account = 0;
    if (!receiver)
        rc_account = sObjectMgr->GetPlayerAccountIdByGUID(MAKE_NEW_GUID(receiver_guid, 0, HIGHGUID_PLAYER));

    if (!receiver && !rc_account)                            // sender not exist
    {
        deleteIncludedItems(trans, true);
        return;
    }

    if (!m_items.empty())
    {
        // if item send to character at another account, then apply item delivery delay
        //needItemDelay = sender_acc != rc_account;

        // set owner to new receiver (to prevent delete item with sender char deleting)
        for (MailItemMap::iterator mailItemIter = m_items.begin(); mailItemIter != m_items.end(); ++mailItemIter)
        {
            Item* item = mailItemIter->second;
            item->SaveToDB(trans);                      // item not in inventory and can be save standalone
            // owner in data will set at mail receive and item extracting
            PreparedStatement* stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_ITEM_OWNER);
            stmt->setUInt32(0, receiver_guid);
            stmt->setUInt32(1, item->GetGUIDLow());
            trans->Append(stmt);
        }
    }

    // xinef: WowWiki: "Return mail arrives immediately."

    // will delete item or place to receiver mail list
    SendMailTo(trans, MailReceiver(receiver, receiver_guid), MailSender(MAIL_NORMAL, sender_guid), MAIL_CHECK_MASK_RETURNED, 0);
}

//called when player takes item attached in mail
void WorldSession::HandleMailTakeItem(WorldPacket & recv_data)
{
    uint64 mailbox;
    uint32 mailId;
    uint32 itemId;
    recv_data >> mailbox;
    recv_data >> mailId;
    recv_data >> itemId;                                    // item guid low

    if (!GetPlayer()->GetGameObjectIfCanInteractWith(mailbox, GAMEOBJECT_TYPE_MAILBOX))
        return;

    Player* pl = _player;

    Mail* m = pl->GetMail(mailId);
    if (!m || m->state == MAIL_STATE_DELETED || m->deliver_time > time(NULL))
    {
        pl->SendMailResult(mailId, MAIL_ITEM_TAKEN, MAIL_ERR_INTERNAL_ERROR);
        return;
    }

    // prevent cheating with skip client money check
    if (!pl->HasEnoughMoney(uint32(m->COD)))
    {
        pl->SendMailResult(mailId, MAIL_ITEM_TAKEN, MAIL_ERR_NOT_ENOUGH_MONEY);
        return;
    }

    Item *it = pl->GetMItem(itemId);

    ItemPosCountVec dest;
    uint8 msg = _player->CanStoreItem(NULL_BAG, NULL_SLOT, dest, it, false);
    if (msg == EQUIP_ERR_OK)
    {
        SQLTransaction trans = CharacterDatabase.BeginTransaction();
        m->RemoveItem(itemId);
        m->removedItems.push_back(itemId);

        if (m->COD > 0)                                     //if there is COD, take COD money from player and send them to sender by mail
        {
            uint64 sender_guid = MAKE_NEW_GUID(m->sender, 0, HIGHGUID_PLAYER);
            Player *receive = sObjectMgr->GetPlayer(sender_guid);

            uint32 sender_accId = 0;

            if (GetSecurity() > SEC_PLAYER && sWorld->getBoolConfig(CONFIG_GM_LOG_TRADE))
            {
                std::string sender_name;
                if (receive)
                {
                    sender_accId = receive->GetSession()->GetAccountId();
                    sender_name = receive->GetName();
                }
                else
                {
                    // can be calculated early
                    sender_accId = sObjectMgr->GetPlayerAccountIdByGUID(sender_guid);

                    if (!sObjectMgr->GetPlayerNameByGUID(sender_guid, sender_name))
                        sender_name = sObjectMgr->GetStarGateStringForDBCLocale(LANG_UNKNOWN);
                }
                sLog->outCommand(GetAccountId(), "GM %s (Account: %u) receive mail item: %s (Entry: %u Count: %u) and send COD money:  "UI64FMTD" to player: %s (Account: %u)",
                    GetPlayerName(), GetAccountId(), it->GetProto()->Name1, it->GetEntry(), it->GetCount(), m->COD, sender_name.c_str(), sender_accId);
            }
            else if (!receive)
                sender_accId = sObjectMgr->GetPlayerAccountIdByGUID(sender_guid);

            // check player existence
            if (receive || sender_accId)
            {
                MailDraft(m->subject, "")
                    .AddMoney(m->COD)
                    .SendMailTo(trans, MailReceiver(receive, m->sender), MailSender(MAIL_NORMAL, m->receiver), MAIL_CHECK_MASK_COD_PAYMENT);
            }

            pl->ModifyMoney(-int32(m->COD));
        }
        m->COD = 0;
        m->state = MAIL_STATE_CHANGED;
        pl->m_mailsUpdated = true;
        pl->RemoveMItem(it->GetGUIDLow());

        uint32 count = it->GetCount();                      // save counts before store and possible merge with deleting
        pl->MoveItemToInventory(dest, it, true);

        pl->SaveInventoryAndGoldToDB(trans);
        pl->_SaveMail(trans);
        CharacterDatabase.CommitTransaction(trans);

        pl->SendMailResult(mailId, MAIL_ITEM_TAKEN, MAIL_OK, 0, itemId, count);
    }
    else
        pl->SendMailResult(mailId, MAIL_ITEM_TAKEN, MAIL_ERR_EQUIP_ERROR, msg);
}

//.........这里部分代码省略.........
        if (!item)
        {
            pl->SendMailResult(0, MAIL_SEND, MAIL_ERR_MAIL_ATTACHMENT_INVALID);
            return;
        }

        if (!item->CanBeTraded(true))
        {
            pl->SendMailResult(0, MAIL_SEND, MAIL_ERR_EQUIP_ERROR, EQUIP_ERR_MAIL_BOUND_ITEM);
            return;
        }

        if (item->IsBoundAccountWide() && item->IsSoulBound() && pl->GetSession()->GetAccountId() != rc_account)
        {
            pl->SendMailResult(0, MAIL_SEND, MAIL_ERR_EQUIP_ERROR, EQUIP_ERR_ARTEFACTS_ONLY_FOR_OWN_CHARACTERS);
            return;
        }

        if (item->GetProto()->Flags & ITEM_PROTO_FLAG_CONJURED || item->GetUInt32Value(ITEM_FIELD_DURATION))
        {
            pl->SendMailResult(0, MAIL_SEND, MAIL_ERR_EQUIP_ERROR, EQUIP_ERR_MAIL_BOUND_ITEM);
            return;
        }

        if (COD && item->HasFlag(ITEM_FIELD_FLAGS, ITEM_FLAG_WRAPPED))
        {
            pl->SendMailResult(0, MAIL_SEND, MAIL_ERR_CANT_SEND_WRAPPED_COD);
            return;
        }

        if (item->IsBag() && !((Bag*)item)->IsEmpty())
        {
            pl->SendMailResult(0, MAIL_SEND, MAIL_ERR_EQUIP_ERROR, EQUIP_ERR_CAN_ONLY_DO_WITH_EMPTY_BAGS);
            return;
        }

        items[i] = item;
    }

    pl->SendMailResult(0, MAIL_SEND, MAIL_OK);

    pl->ModifyMoney(-int32(reqmoney));
    pl->GetAchievementMgr().UpdateAchievementCriteria(ACHIEVEMENT_CRITERIA_TYPE_GOLD_SPENT_FOR_MAIL, cost);

    bool needItemDelay = false;

    MailDraft draft(subject, body);

    SQLTransaction trans = CharacterDatabase.BeginTransaction();

    if (items_count > 0 || money > 0)
    {
        if (items_count > 0)
        {
            for (uint8 i = 0; i < items_count; ++i)
            {
                Item* item = items[i];
                if (GetSecurity() > SEC_PLAYER && sWorld->getBoolConfig(CONFIG_GM_LOG_TRADE))
                {
                    sLog->outCommand(GetAccountId(), "GM %s (Account: %u) mail item: %s (Entry: %u Count: %u) to player: %s (Account: %u)",
                        GetPlayerName(), GetAccountId(), item->GetProto()->Name1, item->GetEntry(), item->GetCount(), receiver.c_str(), rc_account);
                }

                item->SetNotRefundable(GetPlayer()); // makes the item no longer refundable
                pl->MoveItemFromInventory(items[i]->GetBagSlot(), item->GetSlot(), true);

                item->DeleteFromInventoryDB(trans);     // deletes item from character's inventory
                i