/*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2009 Martin Minarik <ttsmj@pokec.sk>

 * Copyright (c) 2009-2011 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 <QFile>

#include <QTextStream>

#include <QStringList>

#include <QLineEdit>

#include "namegen.h"

#include "hwform.h"

#include "hwconsts.h"

HWNamegen::HWNamegen() {}

QList<QStringList> HWNamegen::TypesTeamnames;

QList<QStringList> HWNamegen::TypesHatnames;

bool HWNamegen::typesAvailable = false;

void HWNamegen::teamRandomNames(HWTeam & team, const bool changeteamname)

{

    // load types if not already loaded

    if (!typesAvailable)

        if (!loadTypes())

            return; // abort if loading failed

    // abort if there are no hat types

    if (TypesHatnames.size() <= 0)

        return;

    // the hat will influence which names the hogs get

    int kind = (rand()%(TypesHatnames.size()));

    // pick team name based on hat

    if (changeteamname)

    {

        if (TypesTeamnames[kind].size() > 0)

            team.setName(TypesTeamnames[kind][rand()%(TypesTeamnames[kind].size())]);

        team.setGrave(getRandomGrave());

        team.setFort(getRandomFort());

        team.setVoicepack("Default");

    }

    QStringList dicts;

    QStringList dict;

    if ((TypesHatnames[kind].size()) <= 0)

    {

        dicts = dictsForHat(team.hedgehog(0).Hat);

        dict  = dictContents(dicts[rand()%(dicts.size())]);

    }

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

    {

        if ((TypesHatnames[kind].size()) > 0)

        {

            HWHog hh = team.hedgehog(i);

            hh.Hat = TypesHatnames[kind][rand()%(TypesHatnames[kind].size())];

            team.setHedgehog(i,hh);

        }

        // there is a chance that this hog has the same hat as the previous one

        // let's reuse the hat-specific dict in this case

        if ((i == 0) or (team.hedgehog(i).Hat != team.hedgehog(i-1).Hat))

        {

            dicts = dictsForHat(team.hedgehog(i).Hat);

            dict  = dictContents(dicts[rand()%(dicts.size())]);

        }

        // give each hedgehog a random name

        HWNamegen::teamRandomName(team,i,dict);

    }

}

void HWNamegen::teamRandomName(HWTeam & team, const int HedgehogNumber)

{

    QStringList dicts = dictsForHat(team.hedgehog(HedgehogNumber).Hat);

    QStringList dict = dictContents(dicts[rand()%(dicts.size())]);

    teamRandomName(team, HedgehogNumber, dict);

}

void HWNamegen::teamRandomName(HWTeam & team, const int HedgehogNumber, const QStringList & dict)

{

    QStringList namesDict = dict;

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

    {

        namesDict.removeOne(team.hedgehog(i).Name);

    }

    // if our dict doesn't have any new names we'll have to use duplicates

    if (namesDict.size() < 1)

        namesDict = dict;

    HWHog hh = team.hedgehog(HedgehogNumber);

    hh.Name = namesDict[rand()%(namesDict.size())];

    team.setHedgehog(HedgehogNumber, hh);

}

QStringList HWNamegen::dictContents(const QString filename)

{

    QStringList list;

    QFile file;

    // find .cfg to load the names from

    file.setFileName(QString("%1/Data/Names/%2.txt").arg(cfgdir->absolutePath()).arg(filename));

    if (!file.exists())

        file.setFileName(QString("%1/Names/%2.txt").arg(datadir->absolutePath()).arg(filename));

    if (file.open(QIODevice::ReadOnly | QIODevice::Text))

    {

        QTextStream in(&file);

        while (!in.atEnd())

        {

            QString line = in.readLine();

            if(!line.isEmpty())

                list.append(line);

        }

    }

    if (list.size() == 0)

         list.append(filename);

    return list;

}

QStringList HWNamegen::dictsForHat(const QString hatname)

{

    QStringList list;

    QFile file;

    // find .cfg to load the names from

    file.setFileName(QString("%1/Data/Names/%2.cfg").arg(cfgdir->absolutePath()).arg(hatname));

    if (!file.exists())

        file.setFileName(QString("%1/Names/%2.cfg").arg(datadir->absolutePath()).arg(hatname));

    if (file.open(QIODevice::ReadOnly | QIODevice::Text))

    {

        QTextStream in(&file);

        while (!in.atEnd())

        {

            QString line = in.readLine();

            if(!line.isEmpty())

                list.append(line);

        }

    }

    if (list.size() == 0)

         list.append(QString("generic"));

    return list;

}

// loades types from ini files. returns true on success.

bool HWNamegen::loadTypes()

{

    QFile file;

    // find .cfg to load the names from

    file.setFileName(QString("%1/Data/Names/types.ini").arg(cfgdir->absolutePath()));

    if (!file.exists())

        file.setFileName(QString("%1/Names/types.ini").arg(datadir->absolutePath()));

    if (!file.open(QIODevice::ReadOnly | QIODevice::Text))

        return false;

    int counter = 0; //counter starts with 0 (teamnames mode)

    TypesTeamnames.append(QStringList());

    TypesHatnames.append(QStringList());

    QTextStream in(&file);

    while (!in.atEnd())

    {

        QString line = in.readLine();

        if (line == QString("#####"))

        {

            counter++; //toggle mode (teamnames || hats)

            if ((counter%2) == 0)

            {

                TypesTeamnames.append(QStringList());

                TypesHatnames.append(QStringList());

            }

        }

        else if ((line == QString("*****")) || (line == QString("*END*")))

        {

            typesAvailable = true;

            return true; // bye bye

        }

        else

        {

            if ((counter%2) == 0)

            {

                // even => teamnames mode

                TypesTeamnames[(counter/2)].append(line);

            }

            else

            {

                // odd => hats mode

                TypesHatnames[((counter-1)/2)].append(line);

            }

        }

    }

    typesAvailable = true;

    return true;

}

QString HWNamegen::getRandomGrave()

{

    QStringList Graves;

    //list all available Graves

    QDir tmpdir;

    tmpdir.cd(cfgdir->absolutePath());

    tmpdir.cd("Data/Graphics/Graves");

    tmpdir.setFilter(QDir::Files);

    Graves.append(tmpdir.entryList(QStringList("*.png")).replaceInStrings(QRegExp("^(.*)\\.png"), "\\1"));

    tmpdir.cd(datadir->absolutePath());

    tmpdir.cd("Graphics/Graves");

    tmpdir.setFilter(QDir::Files);

    QStringList tmpList = tmpdir.entryList(QStringList("*.png")).replaceInStrings(QRegExp("^(.*)\\.png"), "\\1");

    for (QStringList::Iterator it = tmpList.begin(); it != tmpList.end(); ++it) 

        if (!Graves.contains(*it,Qt::CaseInsensitive)) Graves.append(*it);

    if(Graves.size()==0)

    {

        //do some serious error handling

        return "Error";

    }

    //pick a random grave

    return Graves[rand()%(Graves.size())];

}

QString HWNamegen::getRandomFort()

{

    QStringList Forts;

    //list all available Forts

    QDir tmpdir;

    tmpdir.cd(datadir->absolutePath());

    tmpdir.cd("Forts");

    tmpdir.setFilter(QDir::Files);

    Forts.append(tmpdir.entryList(QStringList("*L.png")).replaceInStrings(QRegExp("^(.*)L\\.png"), "\\1"));

    if(Forts.size()==0)

    {

        //do some serious error handling

        return "Error";

    }

    //pick a random fort

    return Forts[rand()%(Forts.size())];

}