/*
 * Hedgewars, a free turn based strategy game
 * Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com>
 *
 * 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 "ThemeModel.h"
#include "frontlibpoller.h"

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

HWGame::HWGame(GameUIConfig * config, GameCFGWidget * gamecfg, QString ammo, TeamSelWidget* pTeamSelWidget) :
    TCPBase(0)
    , ammostr(ammo)
    , m_pTeamSelWidget(pTeamSelWidget)
    , m_conn(0)
    , m_poller(0)
{
    this->config = config;
    this->gamecfg = gamecfg;
    netSuspend = false;
}

HWGame::~HWGame()
{
    SetGameState(gsDestroyed);

    if(m_conn)
        flib_gameconn_destroy(m_conn);
}

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::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 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->setText(wh[0]);
            config->Form->ui.pageOptions->windowHeightEdit->setText(wh[1]);
            break;
        }
        default:
        {
            if (gameType == gtNet && !netSuspend)
            {
                emit SendNet(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);
    }*/
}

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::number(flib_gameconn_getport(m_conn));
    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()
{
    gameType = gtLocal;
    //demo.clear();
    start(false);
    SetGameState(gsStarted);
}

void HWGame::StartQuick()
{
    ThemeModel * themeModel = DataManager::instance().themeModel();
    gameType = gtQLocal;

    flib_gamesetup gameSetup;
    gameSetup.style = NULL;
    gameSetup.gamescheme = flib_scheme_create("Default");
    gameSetup.map = flib_map_create_regular(
                QUuid::createUuid().toString().toAscii().constData()
                , themeModel->rowCount() > 0 ? themeModel->index(rand() % themeModel->rowCount()).data().toString().toUtf8().constData() : "Sheep"
                , 2);
    gameSetup.teamlist = flib_teamlist_create();

    // add teams
    HWTeam team1;
    team1.setDifficulty(0);
    team1.setColor(0);
    team1.setNumHedgehogs(4);
    HWNamegen::teamRandomNames(team1, true);

    HWTeam team2;
    team2.setDifficulty(4);
    team2.setColor(1);
    team2.setNumHedgehogs(4);
    do
        HWNamegen::teamRandomNames(team2,true);
    while(!team2.name().compare(team1.name()) || !team2.hedgehogHat(0).compare(team1.hedgehogHat(0)));

    QList<flib_team *> teams;
    teams << team1.toFlibTeam() << team2.toFlibTeam();

    for(int i = 0; i < 2; ++i)
    {
        flib_team *team = teams[i];
        team->hogsInGame = 4;
        team->remoteDriven = false;
        for(int h = 0; h < HEDGEHOGS_PER_TEAM; ++h)
        {
            team->hogs[h].weaponset = flib_weaponset_create("Default");
            team->hogs[h].initialHealth = 100;
        }
        flib_teamlist_insert(gameSetup.teamlist, team, 0);
    }


    m_conn = flib_gameconn_create(config->netNick().toUtf8().constData(), &gameSetup, false);

    flib_teamlist_destroy(gameSetup.teamlist);
    flib_map_destroy(gameSetup.map);
    flib_scheme_destroy(gameSetup.gamescheme);

    start(false);
    SetGameState(gsStarted);
}

void HWGame::StartTraining(const QString & file)
{
    gameType = gtTraining;
    training = "Missions/Training/" + file + ".lua";
    //demo.clear();
    start(false);
    SetGameState(gsStarted);
}

void HWGame::StartCampaign(const QString & camp, const QString & campScript, const QString & campTeam)
{
    gameType = gtCampaign;
    campaign = camp;
    campaignScript = "Missions/Campaign/" + camp + "/" + campScript;
    campaignTeam = campTeam;
    //demo.clear();
    start(false);
    SetGameState(gsStarted);
}

void HWGame::SetGameState(GameState state)
{
    gameState = state;
    emit GameStateChanged(state);
    if (gameType == gtCampaign)
    {
      emit campStateChanged(1);
    }
}

void HWGame::abort()
{
    QByteArray buf;
    HWProto::addStringToBuffer(buf, QString("efinish"));
    //RawSendIPC(buf);
}

void HWGame::sendCampaignVar(const QByteArray &varToSend)
{
    QString varToFind(varToSend);
    QSettings teamfile("/Teams/" + campaignTeam + ".hwt", QSettings::IniFormat, 0);
    teamfile.setIniCodec("UTF-8");
    QString varValue = teamfile.value("Campaign " + campaign + "/" + varToFind, "").toString();
    QByteArray command;
    HWProto::addStringToBuffer(command, "V." + varValue);
    //RawSendIPC(command);
}

void HWGame::writeCampaignVar(const QByteArray & varVal)
{
    int i = varVal.indexOf(" ");
    if(i < 0)
        return;

    QString varToWrite = QString::fromUtf8(varVal.left(i));
    QString varValue = QString::fromUtf8(varVal.mid(i + 1));

    QSettings teamfile("/Teams/" + campaignTeam + ".hwt", QSettings::IniFormat, 0);
    teamfile.setIniCodec("UTF-8");
    teamfile.setValue("Campaign " + campaign + "/" + varToWrite, varValue);
}


void HWGame::onChat(void* context, const char *msg, bool teamchat)
{
    HWGame * game = (HWGame *) context;

    if(teamchat)
        emit game->SendTeamMessage(QString::fromUtf8(msg));
    else
        emit game->SendChat(QString::fromUtf8(msg));
}

void HWGame::onConnect(void* context)
{
    HWGame * game = (HWGame *) context;
}

void HWGame::onDisconnect(void* context, int reason)
{
    HWGame * game = (HWGame *) context;
    /*
        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);
        }*/

     game->SetGameState(gsStopped);
     game->clientDisconnected();

     delete game->m_poller;
}

void HWGame::onEngineMessage(void *context, const uint8_t *em, size_t size)
{
    HWGame * game = (HWGame *) context;
}

void HWGame::onErrorMessage(void* context, const char *msg)
{
    HWGame * game = (HWGame *) context;

    emit game->ErrorMessage(QString("Last two engine messages:\n%1").arg(QString::fromUtf8(msg)));
}

void HWGame::onGameRecorded(void *context, const uint8_t *record, size_t size, bool isSavegame)
{
    HWGame * game = (HWGame *) context;
}

void HWGame::onEngineStart()
{
    flib_gameconn_onChat(m_conn, onChat, this);
    flib_gameconn_onConnect(m_conn, onConnect, this);
    flib_gameconn_onDisconnect(m_conn, onDisconnect, this);
    flib_gameconn_onEngineMessage(m_conn, onEngineMessage, this);
    flib_gameconn_onErrorMessage(m_conn, onErrorMessage, this);
    flib_gameconn_onGameRecorded(m_conn, onGameRecorded, this);

    m_poller = new FrontLibPoller((void (*)(void *))flib_gameconn_tick, m_conn, this);
}