/*
 * Copyright (C) 2016+     AzerothCore <www.azerothcore.org>, released under GNU GPL v2 license: https://github.com/azerothcore/azerothcore-wotlk/blob/master/LICENSE-GPL2
 * Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
 * Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
 */

#include "PacketLog.h"
#include "Config.h"
#include "ByteBuffer.h"
#include "WorldPacket.h"

PacketLog::PacketLog() : _file(nullptr)
{
    Initialize();
}

PacketLog::~PacketLog()
{
    if (_file)
        fclose(_file);

    _file = nullptr;
}

PacketLog* PacketLog::instance()
{
    static PacketLog instance;
    return &instance;
}

void PacketLog::Initialize()
{
    std::string logsDir = sConfigMgr->GetStringDefault("LogsDir", "");

    if (!logsDir.empty())
        if ((logsDir.at(logsDir.length() - 1) != '/') && (logsDir.at(logsDir.length() - 1) != '\\'))
            logsDir.push_back('/');

    std::string logname = sConfigMgr->GetStringDefault("PacketLogFile", "");
    if (!logname.empty())
        _file = fopen((logsDir + logname).c_str(), "wb");
}

void PacketLog::LogPacket(WorldPacket const& packet, Direction direction)
{
    ByteBuffer data(4 + 4 + 4 + 1 + packet.size());
    data << int32(packet.GetOpcode());
    data << int32(packet.size());
    data << uint32(time(nullptr));
    data << uint8(direction);

    for (uint32 i = 0; i < packet.size(); i++)
        data << packet[i];

    fwrite(data.contents(), 1, data.size(), _file);
    fflush(_file);
}