/*
 *  The ManaVerse Client
 *  Copyright (C) 2004-2009  The Mana World Development Team
 *  Copyright (C) 2009-2010  The Mana Developers
 *  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 "guild.h"

#include "actormanager.h"

#include "being/being.h"

#include "utils/stringutils.h"

#include "debug.h"

static class SortGuildFunctor final
{
    public:
        A_DEFAULT_COPY(SortGuildFunctor)

        bool operator() (const GuildMember *const m1,
                         const GuildMember *const m2) const
        {
            if ((m1 == nullptr) || (m2 == nullptr))
                return false;

            if (m1->getOnline() != m2->getOnline())
            {
                return static_cast<int>(m1->getOnline()) >=
                    static_cast<int>(m2->getOnline());
            }

            if (m1->getPos() != m2->getPos())
                return m1->getPos() >= m2->getPos();

            if (m1->getName() != m2->getName())
            {
                std::string s1 = m1->getName();
                std::string s2 = m2->getName();
                toLower(s1);
                toLower(s2);
                return s1 < s2;
            }
            return false;
        }
} guildSorter;

GuildMember::GuildMember(Guild *const guild,
                         const BeingId accountId,
                         const int charId,
                         const std::string &name) :
    Avatar(name),
    mGuild(guild),
    mPos(0)
{
    mId = accountId;
    mCharId = charId;
}

GuildMember::GuildMember(Guild *const guild, const std::string &name) :
    Avatar(name),
    mGuild(guild),
    mPos(0)
{
}

std::string GuildMember::getAdditionString() const
{
    if (mGuild == nullptr)
        return "";

    return " - " + mGuild->getPos(mPos);
}

Guild::GuildMap Guild::guilds;

Guild::Guild(const int16_t id) :
    mMembers(),
    mPositions(),
    mName(),
    mEmblemId(0),
    mId(id),
    mCanInviteUsers(false),
    mServerGuild(true)
{
    guilds[id] = this;
}

Guild::~Guild()
{
    clearMembers();
}

GuildMember *Guild::addMember(const BeingId accountId,
                              const int charId,
                              const std::string &name)
{
    GuildMember *m = getMember(accountId, charId);
    if (m != nullptr)
        return m;

    m = new GuildMember(this, accountId, charId, name);

    mMembers.push_back(m);

    return m;
}

GuildMember *Guild::addMember(const std::string &name)
{
    GuildMember *m = getMember(name);
    if (m != nullptr)
        return m;

    m = new GuildMember(this, name);

    mMembers.push_back(m);

    return m;
}

GuildMember *Guild::getMember(const BeingId id) const
{
    MemberList::const_iterator itr = mMembers.begin();
    const MemberList::const_iterator itr_end = mMembers.end();
    while (itr != itr_end)
    {
        if (((*itr) != nullptr) && (*itr)->mId == id)
            return (*itr);
        ++itr;
    }

    return nullptr;
}

GuildMember *Guild::getMember(const BeingId accountId,
                              const int charId) const
{
    MemberList::const_iterator itr = mMembers.begin();
    const MemberList::const_iterator itr_end = mMembers.end();
    while (itr != itr_end)
    {
        if ((*itr) != nullptr &&
            (*itr)->mId == accountId &&
            (*itr)->mCharId == charId)
        {
            return (*itr);
        }
        ++itr;
    }

    return nullptr;
}

GuildMember *Guild::getMemberByCharId(const int charId) const
{
    MemberList::const_iterator itr = mMembers.begin();
    const MemberList::const_iterator itr_end = mMembers.end();
    while (itr != itr_end)
    {
        if ((*itr) != nullptr &&
            (*itr)->mCharId == charId)
        {
            return (*itr);
        }
        ++itr;
    }

    return nullptr;
}

GuildMember *Guild::getMember(const std::string &name) const
{
    MemberList::const_iterator itr = mMembers.begin();
    const MemberList::const_iterator itr_end = mMembers.end();
    while (itr != itr_end)
    {
        if (((*itr) != nullptr) && (*itr)->getName() == name)
            return (*itr);
        ++itr;
    }

    return nullptr;
}

void Guild::removeMember(const GuildMember *const member)
{
    if (member == nullptr)
        return;
    MemberList::iterator itr = mMembers.begin();
    const MemberList::iterator itr_end = mMembers.end();
    while (itr != itr_end)
    {
        if (*itr == nullptr)
            continue;
        if ((*itr)->mId == member->mId &&
            (*itr)->mCharId == member->mCharId &&
            (*itr)->getName() == member->getName())
        {
            GuildMember *m = *itr;
            mMembers.erase(itr);
            delete m;
            return;
        }
        ++ itr;
    }
}

void Guild::removeMember(const BeingId id)
{
    bool deleted = true;
    while (deleted)
    {
        deleted = false;
        MemberList::iterator itr = mMembers.begin();
        const MemberList::iterator itr_end = mMembers.end();
        while (itr != itr_end)
        {
            if (((*itr) != nullptr) && (*itr)->mId == id)
            {
                GuildMember *member = *itr;
                mMembers.erase(itr);
                delete member;
                deleted = true;
                break;
            }
            ++itr;
        }
    }
}

void Guild::removeMember(const std::string &name)
{
    bool deleted = true;
    while (deleted)
    {
        deleted = false;
        MemberList::iterator itr = mMembers.begin();
        const MemberList::iterator itr_end = mMembers.end();
        while (itr != itr_end)
        {
            if (((*itr) != nullptr) && (*itr)->getName() == name)
            {
                GuildMember *member = *itr;
                mMembers.erase(itr);
                delete member;
                deleted = true;
                break;
            }
            ++itr;
        }
    }
}

void Guild::removeFromMembers()
{
    if (actorManager == nullptr)
        return;

    MemberList::const_iterator itr = mMembers.begin();
    const MemberList::const_iterator itr_end = mMembers.end();
    while (itr != itr_end)
    {
        if (*itr != nullptr)
        {
            Being *const b = actorManager->findBeing((*itr)->getID());
            if (b != nullptr)
                b->removeGuild(mId);
        }
        ++itr;
    }
}

Avatar *Guild::getAvatarAt(const int index)
{
    return mMembers[index];
}

void Guild::setRights(const int16_t rights)
{
    // to invite, rights must be greater than 0
    if (rights > 0)
        mCanInviteUsers = true;
}

bool Guild::isMember(const GuildMember *const member) const
{
    if (member == nullptr)
        return false;

    if ((member->mGuild != nullptr) && member->mGuild != this)
        return false;

    MemberList::const_iterator itr = mMembers.begin();
    const MemberList::const_iterator itr_end = mMembers.end();
    while (itr != itr_end)
    {
        if (((*itr) != nullptr) && (*itr)->mId == member->mId &&
            (*itr)->getName() == member->getName())
        {
            return true;
        }
        ++itr;
    }

    return false;
}

bool Guild::isMember(const BeingId id) const
{
    MemberList::const_iterator itr = mMembers.begin();
    const MemberList::const_iterator itr_end = mMembers.end();
    while (itr != itr_end)
    {
        if (((*itr) != nullptr) && (*itr)->mId == id)
            return true;
        ++itr;
    }

    return false;
}

bool Guild::isMember(const std::string &name) const
{
    MemberList::const_iterator itr = mMembers.begin();
    const MemberList::const_iterator itr_end = mMembers.end();
    while (itr != itr_end)
    {
        if (((*itr) != nullptr) && (*itr)->getName() == name)
            return true;
        ++itr;
    }

    return false;
}

void Guild::getNames(StringVect &names) const
{
    names.clear();
    MemberList::const_iterator it = mMembers.begin();
    const MemberList::const_iterator it_end = mMembers.end();

    while (it != it_end)
    {
        if (*it != nullptr)
            names.push_back((*it)->getName());
        ++it;
    }
}

void Guild::addPos(const int id, const std::string &name)
{
    mPositions[id] = name;
}

Guild *Guild::getGuild(const int16_t id)
{
    const GuildMap::const_iterator it = guilds.find(id);
    if (it != guilds.end())
        return it->second;

    Guild *const guild = new Guild(id);
    guilds[id] = guild;
    return guild;
}

std::string Guild::getPos(const int id) const
{
    const PositionsMap::const_iterator it = mPositions.find(id);
    if (it == mPositions.end())
        return "";
    return it->second;
}

void Guild::sort()
{
    std::sort(mMembers.begin(), mMembers.end(), guildSorter);
}

void Guild::clearGuilds()
{
    GuildMap::iterator it = guilds.begin();
    while (it != guilds.end())
    {
        delete (*it).second;
        ++ it;
    }
    guilds.clear();
}