/*
 *  The ManaVerse Client
 *  Copyright (C) 2011-2019  The ManaPlus Developers
 *
 *  This file is part of The ManaVerse Client.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "net/eathena/mail2handler.h"

#include "const/net/inventory.h"

#include "being/localplayer.h"

#include "net/eathena/mail2recv.h"
#include "net/eathena/messageout.h"
#include "net/eathena/protocolout.h"

#include "utils/checkutils.h"

#include "resources/mailqueue.h"

#include "resources/item/item.h"

#include "debug.h"

extern int packetVersion;
extern int serverVersion;

namespace EAthena
{

Mail2Handler::Mail2Handler()
{
    mail2Handler = this;
}

Mail2Handler::~Mail2Handler()
{
    mail2Handler = nullptr;
    Mail2Recv::mCheckedName.clear();
    while (!Mail2Recv::mMailQueue.empty())
    {
        MailQueue *const mail = Mail2Recv::mMailQueue.front();
        delete mail;
        Mail2Recv::mMailQueue.pop();
    }
}

void Mail2Handler::openWriteMail(const std::string &receiver) const
{
    if (packetVersion < 20140416)
        return;
    createOutPacket(CMSG_MAIL2_OPEN_WRITE_MAIL);
    outMsg.writeString(receiver, 24, "receiver name");
}

void Mail2Handler::addItem(const Item *const item,
                           const int amount) const
{
    if (item == nullptr)
        return;
    if (packetVersion < 20140416)
        return;

    createOutPacket(CMSG_MAIL2_ADD_ITEM_TO_MAIL);
    outMsg.writeInt16(CAST_S16(
        item->getInvIndex() + INVENTORY_OFFSET), "index");
    outMsg.writeInt16(CAST_S16(amount), "amount");
}

void Mail2Handler::removeItem(const int index,
                              const int amount) const
{
    if (packetVersion < 20140416)
        return;

    createOutPacket(CMSG_MAIL2_REMOVE_ITEM_MAIL);
    outMsg.writeInt16(CAST_S16(index + INVENTORY_OFFSET), "index");
    outMsg.writeInt16(CAST_S16(amount), "amount");
}

void Mail2Handler::sendMail(const std::string &to,
                            const std::string &title,
                            const std::string &body,
                            const int64_t &money) const
{
    if (packetVersion < 20131230)
        return;
    if (localPlayer == nullptr)
        return;

    const std::string from = localPlayer->getName();
    const int titleSz = CAST_S32(title.size()) + 1;
    const int bodySz = CAST_S32(body.size()) + 1;
    int32_t sz = 2 + 2 + 24 + 24 + 8 + 2 + 2 + titleSz + bodySz;
    if (sz > 32767 - 4)
    {
        reportAlways("Mail message too big")
        return;
    }
    if (packetVersion >= 20160600)
        sz += 4;

    createOutPacket(CMSG_MAIL2_SEND_MAIL);
    outMsg.writeInt16(CAST_S16(sz), "len");
    outMsg.writeString(to, 24, "to");
    outMsg.writeString(from, 24, "from");
    outMsg.writeInt64(money, "money");
    outMsg.writeInt16(CAST_S16(titleSz), "title len");
    outMsg.writeInt16(CAST_S16(bodySz), "body len");
    if (packetVersion >= 20160600)
        outMsg.writeInt32(0, "to char id");
    outMsg.writeString(title, titleSz, "title");
    outMsg.writeString(body, bodySz, "body");
    Mail2Recv::mCheckedName.clear();
}

void Mail2Handler::queueCheckName(const MailQueueTypeT type,
                                  const std::string &to,
                                  const std::string &title,
                                  const std::string &body,
                                  const int64_t &money) const
{
    MailQueue *const mail = new MailQueue;
    mail->to = to;
    mail->title = title;
    mail->body = body;
    mail->money = money;
    mail->type = type;
    Mail2Recv::mMailQueue.push(mail);
    requestCheckName(to);
}

void Mail2Handler::nextPage(const MailOpenTypeT openType,
                            const int64_t mailId) const
{
    if (packetVersion < 20131218)
        return;
    createOutPacket(CMSG_MAIL2_NEXT_PAGE);
    outMsg.writeInt8(toInt(openType, int8_t), "open type");
    outMsg.writeInt64(mailId, "mail id");
}

void Mail2Handler::readMail(const MailOpenTypeT openType,
                            const int64_t mailId) const
{
    if (packetVersion < 20131223)
        return;
    createOutPacket(CMSG_MAIL2_READ_MAIL);
    outMsg.writeInt8(toInt(openType, int8_t), "open type");
    outMsg.writeInt64(mailId, "mail id");
}

void Mail2Handler::deleteMail(const MailOpenTypeT openType,
                              const int64_t mailId) const
{
    if (packetVersion < 20131218)
        return;
    createOutPacket(CMSG_MAIL2_DELETE_MAIL);
    outMsg.writeInt8(toInt(openType, int8_t), "open type");
    outMsg.writeInt64(mailId, "mail id");
}

void Mail2Handler::requestMoney(const MailOpenTypeT openType,
                                const int64_t mailId) const
{
    if (packetVersion < 20140326)
        return;
    createOutPacket(CMSG_MAIL2_REQUEST_MONEY);
    outMsg.writeInt64(mailId, "mail id");
    outMsg.writeInt8(toInt(openType, int8_t), "open type");
}

void Mail2Handler::requestItems(const MailOpenTypeT openType,
                                const int64_t mailId) const
{
    if (packetVersion < 20140326)
        return;
    createOutPacket(CMSG_MAIL2_REQUEST_ITEMS);
    outMsg.writeInt64(mailId, "mail id");
    outMsg.writeInt8(toInt(openType, int8_t), "open type");
}

void Mail2Handler::refreshMailList(const MailOpenTypeT openType,
                                   const int64_t mailId) const
{
    if (packetVersion < 20131218)
        return;
    createOutPacket(CMSG_MAIL2_REFRESH_MAIL_LIST);
    if (packetVersion >= 20170419)
    {
        outMsg.writeInt64(mailId, "mail id");
        outMsg.writeInt32(0, "unknown 1");
        outMsg.writeInt32(0, "unknown 2");
        outMsg.writeInt32(0, "unknown 3");
        outMsg.writeInt32(0, "unknown 4");
    }
    else
    {
        outMsg.writeInt8(toInt(openType, int8_t), "open type");
        outMsg.writeInt64(mailId, "mail id");
    }
}

void Mail2Handler::openMailBox(const MailOpenTypeT openType) const
{
    if (packetVersion < 20140212)
        return;
    createOutPacket(CMSG_MAIL2_OPEN_MAILBOX);
    if (packetVersion >= 20170419)
    {
        outMsg.writeInt64(0, "char mail id");
        outMsg.writeInt64(0, "return mail id");
        outMsg.writeInt64(0, "account mail id");
    }
    else
    {
        outMsg.writeInt8(toInt(openType, int8_t), "open type");
        outMsg.writeInt64(0, "mail id");
    }
}

void Mail2Handler::closeMailBox() const
{
    if (packetVersion < 20131211)
        return;
    createOutPacket(CMSG_MAIL2_CLOSE_MAILBOX);
}

void Mail2Handler::cancelWriteMail() const
{
    if (packetVersion < 20140326)
        return;
    createOutPacket(CMSG_MAIL2_CANCEL_WRITE_MAIL);
}

void Mail2Handler::requestCheckName(const std::string &name) const
{
    if (packetVersion < 20140423)
        return;
    createOutPacket(CMSG_MAIL2_CHECK_NAME);
    outMsg.writeString(name, 24, "name");
}

std::string Mail2Handler::getCheckedName() const
{
    return Mail2Recv::mCheckedName;
}

}  // namespace EAthena