/*

 * Hedgewars, a free turn based strategy game

 *

 * 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; version 2 of the License

 *

 * 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, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA

 */

#include <QString>

#include <QByteArray>

#include <QUuid>

#include <QColor>

#include <QStringListModel>

#include <QTextStream>

#include <utility>

#include "hwform.h"

#include "ui/page/pageoptions.h"

#include "game.h"

#include "hwconsts.h"

#include "gameuiconfig.h"

#include "gamecfgwidget.h"

#include "teamselect.h"

#include "proto.h"

#include "binds.h"

#include "campaign.h"

#include <QTextStream>

#include "ThemeModel.h"

// last game info

QList<QVariant> lastGameStartArgs = QList<QVariant>();

GameType lastGameType = gtNone;

GameCFGWidget * lastGameCfg = NULL;

QString lastGameAmmo = NULL;

TeamSelWidget * lastGameTeamSel = NULL;

QString training, campaign, campaignScript, campaignTeam; // TODO: Cleaner solution?

HWGame::HWGame(GameUIConfig * config, GameCFGWidget * gamecfg, QString ammo, TeamSelWidget* pTeamSelWidget) :

    TCPBase(true, 0),

    ammostr(ammo),

    m_pTeamSelWidget(pTeamSelWidget)

{

    this->config = config;

    this->gamecfg = gamecfg;

    netSuspend = false;

    lastGameCfg = gamecfg;

    lastGameAmmo = ammo;

    lastGameTeamSel = pTeamSelWidget;

}

HWGame::~HWGame()

{

    SetGameState(gsDestroyed);

}

void HWGame::onClientDisconnect()

{

    switch (gameType)

    {

        case gtDemo:

            // for video recording we need demo anyway

            emit HaveRecord(rtNeither, demo);

            break;

        case gtNet:

            emit HaveRecord(rtDemo, demo);

            break;

        default:

            if (gameState == gsInterrupted || gameState == gsHalted)

                emit HaveRecord(rtSave, demo);

            else if (gameState == gsFinished)

                emit HaveRecord(rtDemo, demo);

            else

                emit HaveRecord(rtNeither, demo);

    }

    SetGameState(gsStopped);

}

void HWGame::addKeyBindings(QByteArray * buf)

{

    for(int i = 0; i < BINDS_NUMBER; i++)

    {

        QString value = config->value(QString("Binds/%1").arg(cbinds[i].action), cbinds[i].strbind).toString();

        if (value.isEmpty() || value == "default") continue;

        QString bind = QString("edbind " + value + " " + cbinds[i].action);

        HWProto::addStringToBuffer(*buf, bind);

    }

}

void HWGame::commonConfig()

{

    QByteArray buf;

    QString gt;

    switch (gameType)

    {

        case gtDemo:

            gt = "TD";

            break;

        case gtNet:

            gt = "TN";

            break;

        default:

            gt = "TL";

    }

    HWProto::addStringToBuffer(buf, gt);

    addKeyBindings(&buf);

    buf += gamecfg->getFullConfig();

    if (m_pTeamSelWidget)

    {

        foreach(HWTeam team, m_pTeamSelWidget->getPlayingTeams())

        {

            HWProto::addStringToBuffer(buf, QString("eammloadt %1").arg(ammostr.mid(0, cAmmoNumber)));

            HWProto::addStringToBuffer(buf, QString("eammprob %1").arg(ammostr.mid(cAmmoNumber, cAmmoNumber)));

            HWProto::addStringToBuffer(buf, QString("eammdelay %1").arg(ammostr.mid(2 * cAmmoNumber, cAmmoNumber)));

            HWProto::addStringToBuffer(buf, QString("eammreinf %1").arg(ammostr.mid(3 * cAmmoNumber, cAmmoNumber)));

            if(gamecfg->schemeData(15).toBool() || !gamecfg->schemeData(21).toBool()) HWProto::addStringToBuffer(buf, QString("eammstore"));

            HWProto::addStringListToBuffer(buf,

                                           team.teamGameConfig(gamecfg->getInitHealth(), config));

            ;

        }

    }

    RawSendIPC(buf);

}

void HWGame::SendConfig()

{

    commonConfig();

}

void HWGame::SendQuickConfig()

{

    QByteArray teamscfg;

    ThemeModel * themeModel = DataManager::instance().themeModel();

    addKeyBindings(&teamscfg);

    HWProto::addStringToBuffer(teamscfg, "TL");

    HWProto::addStringToBuffer(teamscfg, QString("etheme %1")

                               .arg((themeModel->rowCount() > 0) ? themeModel->index(rand() % themeModel->rowCount()).data().toString() : "steel"));

    HWProto::addStringToBuffer(teamscfg, "eseed " + QUuid::createUuid().toString());

    HWProto::addStringToBuffer(teamscfg, "e$template_filter 2");

    HWTeam team1;

    team1.setDifficulty(0);

    team1.setColor(0);

    team1.setNumHedgehogs(4);

    HWNamegen::teamRandomNames(team1,true);

    HWProto::addStringListToBuffer(teamscfg,

                                   team1.teamGameConfig(100, config));

    HWTeam team2;

    team2.setDifficulty(4);

    team2.setColor(1);

    team2.setNumHedgehogs(4);

    do

        HWNamegen::teamRandomNames(team2,true);

    while(!team2.name().compare(team1.name()) || !team2.hedgehog(0).Hat.compare(team1.hedgehog(0).Hat));

    HWProto::addStringListToBuffer(teamscfg,

                                   team2.teamGameConfig(100, config));

    HWProto::addStringToBuffer(teamscfg, QString("eammloadt %1").arg(cDefaultAmmoStore->mid(0, cAmmoNumber)));

    HWProto::addStringToBuffer(teamscfg, QString("eammprob %1").arg(cDefaultAmmoStore->mid(cAmmoNumber, cAmmoNumber)));

    HWProto::addStringToBuffer(teamscfg, QString("eammdelay %1").arg(cDefaultAmmoStore->mid(2 * cAmmoNumber, cAmmoNumber)));

    HWProto::addStringToBuffer(teamscfg, QString("eammreinf %1").arg(cDefaultAmmoStore->mid(3 * cAmmoNumber, cAmmoNumber)));

    HWProto::addStringToBuffer(teamscfg, QString("eammstore"));

    HWProto::addStringToBuffer(teamscfg, QString("eammstore"));

    RawSendIPC(teamscfg);

}

void HWGame::SendTrainingConfig()

{

    QByteArray traincfg;

    HWProto::addStringToBuffer(traincfg, "TL");

    HWProto::addStringToBuffer(traincfg, "eseed " + QUuid::createUuid().toString());

    HWProto::addStringToBuffer(traincfg, "escript " + training);

    addKeyBindings(&traincfg);

    RawSendIPC(traincfg);

}

void HWGame::SendCampaignConfig()

{

    QByteArray campaigncfg;

    HWProto::addStringToBuffer(campaigncfg, "TL");

    HWProto::addStringToBuffer(campaigncfg, "eseed " + QUuid::createUuid().toString());

    HWProto::addStringToBuffer(campaigncfg, "escript " + campaignScript);

    addKeyBindings(&campaigncfg);

    RawSendIPC(campaigncfg);

}

void HWGame::SendNetConfig()

{

    commonConfig();

}

void HWGame::ParseMessage(const QByteArray & msg)

{

    switch(msg.at(1))

    {

        case '?':

        {

            SendIPC("!");

            break;

        }

        case 'C':

        {

            switch (gameType)

            {

                case gtLocal:

                {

                    SendConfig();

                    break;

                }

                case gtQLocal:

                {

                    SendQuickConfig();

                    break;

                }

                case gtNone:

                case gtSave:

                case gtDemo:

                    break;

                case gtNet:

                {

                    SendNetConfig();

                    break;

                }

                case gtTraining:

                {

                    SendTrainingConfig();

                    break;

                }

                case gtCampaign:

                {

                    SendCampaignConfig();

                    break;

                }

            }

            break;

        }

        case 'E':

        {

            int size = msg.size();

            emit ErrorMessage(QString("Last two engine messages:\n") + QString().append(msg.mid(2)).left(size - 4));

            return;

        }

        case 'i':

        {

            emit GameStats(msg.at(2), QString::fromUtf8(msg.mid(3)));

            break;

        }

        case 'Q':

        {

            SetGameState(gsInterrupted);

            break;

        }

        case 'q':

        {

            SetGameState(gsFinished);

            break;

        }

        case 'H':

        {

            SetGameState(gsHalted);

            break;

        }

        case 's':

        {

            int size = msg.size();

            QString msgbody = QString::fromUtf8(msg.mid(2).left(size - 4));

            emit SendChat(msgbody);

            QByteArray buf;

            HWProto::addStringToBuffer(buf, "s" + HWProto::formatChatMsg(config->netNick(), msgbody) + "\x20\x20");

            demo.append(buf);

            break;

        }

        case 'b':

        {

            int size = msg.size();

            QString msgbody = QString::fromUtf8(msg.mid(2).left(size - 4));

            emit SendTeamMessage(msgbody);

            break;

        }

        case 'V':

        {

            if (msg.at(2) == '?')

                sendCampaignVar(msg.right(msg.size() - 3));

            else if (msg.at(2) == '!')

                writeCampaignVar(msg.right(msg.size() - 3));

            break;

        }

        case 'W':

        {

            // fetch new window resolution via IPC and save it in the settings

            int size = msg.size();

            QString newResolution = QString().append(msg.mid(2)).left(size - 4);

            QStringList wh = newResolution.split('x');

            config->Form->ui.pageOptions->windowWidthEdit->setValue(wh[0].toInt());

            config->Form->ui.pageOptions->windowHeightEdit->setValue(wh[1].toInt());

            break;

        }

        default:

        {

            if (gameType == gtNet && !netSuspend)

                m_netSendBuffer.append(msg);

            demo.append(msg);

        }

    }

}

void HWGame::FromNet(const QByteArray & msg)

{

    RawSendIPC(msg);

}

void HWGame::FromNetChat(const QString & msg)

{

    QByteArray buf;

    HWProto::addStringToBuffer(buf, 's' + msg + "\x20\x20");

    RawSendIPC(buf);

}

void HWGame::onClientRead()

{

    quint8 msglen;

    quint32 bufsize;

    while (!readbuffer.isEmpty() && ((bufsize = readbuffer.size()) > 0) &&

            ((msglen = readbuffer.data()[0]) < bufsize))

    {

        QByteArray msg = readbuffer.left(msglen + 1);

        readbuffer.remove(0, msglen + 1);

        ParseMessage(msg);

    }

    flushNetBuffer();

}

void HWGame::flushNetBuffer()

{

    if(m_netSendBuffer.size())

    {

        emit SendNet(m_netSendBuffer);

        m_netSendBuffer.clear();

    }

}

QStringList HWGame::getArguments()

{

    QStringList arguments;

    std::pair<QRect, QRect> resolutions = config->vid_ResolutionPair();

    QString nick = config->netNick().toUtf8().toBase64();

    arguments << "--internal"; //Must be passed as first argument

    arguments << "--port";

    arguments << QString("%1").arg(ipc_port);

    arguments << "--prefix";

    arguments << datadir->absolutePath();

    arguments << "--user-prefix";

    arguments << cfgdir->absolutePath();

    arguments << "--locale";

    arguments << tr("en.txt");

    arguments << "--frame-interval";

    arguments << QString::number(config->timerInterval());

    arguments << "--volume";

    arguments << QString::number(config->volume());

    arguments << "--fullscreen-width";

    arguments << QString::number(resolutions.first.width());

    arguments << "--fullscreen-height";

    arguments << QString::number(resolutions.first.height());

    arguments << "--width";

    arguments << QString::number(resolutions.second.width());

    arguments << "--height";

    arguments << QString::number(resolutions.second.height());

    arguments << "--raw-quality";

    arguments << QString::number(config->translateQuality());

    arguments << "--stereo";

    arguments << QString::number(config->stereoMode());

    if (config->vid_Fullscreen())

        arguments << "--fullscreen";

    if (config->isShowFPSEnabled())

        arguments << "--showfps";

    if (config->isAltDamageEnabled())

        arguments << "--altdmg";

    if (!config->isSoundEnabled())

        arguments << "--nosound";

    if (!config->isMusicEnabled())

        arguments << "--nomusic";

    if (!nick.isEmpty()) {

        arguments << "--nick";

        arguments << nick;

    }

    return arguments;

}

void HWGame::PlayDemo(const QString & demofilename, bool isSave)

{

    gameType = isSave ? gtSave : gtDemo;

    QFile demofile(demofilename);

    if (!demofile.open(QIODevice::ReadOnly))

    {

        emit ErrorMessage(tr("Cannot open demofile %1").arg(demofilename));

        return ;

    }

    // read demo

    toSendBuf = demofile.readAll();

    // run engine

    demo.clear();

    Start(false);

    SetGameState(gsStarted);

}

void HWGame::StartNet()

{

    gameType = gtNet;

    demo.clear();

    Start(false);

    SetGameState(gsStarted);

}

void HWGame::StartLocal()

{

    lastGameStartArgs.clear();

    lastGameType = gtLocal;

    gameType = gtLocal;

    demo.clear();

    Start(false);

    SetGameState(gsStarted);

}

void HWGame::StartQuick()

{

    lastGameStartArgs.clear();

    lastGameType = gtQLocal;

    gameType = gtQLocal;

    demo.clear();

    Start(false);

    SetGameState(gsStarted);

}

void HWGame::StartTraining(const QString & file)

{

    lastGameStartArgs.clear();

    lastGameStartArgs.append(file);

    lastGameType = gtTraining;

    gameType = gtTraining;

    training = "Missions/Training/" + file + ".lua";

    demo.clear();

    Start(false);

    SetGameState(gsStarted);

}