/*

 * 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

 */

/**

 * @file

 * @brief RoomsListModel class implementation

 */

#include <QBrush>

#include <QColor>

#include <QIcon>

RoomsListModel::RoomsListModel(QObject *parent) :

    QAbstractTableModel(parent),

    c_nColumns(8)

{

    m_headerData =

    QStringList()

     << tr("In progress")

     << tr("Room Name")

     << tr("C")

     << tr("T")

     << tr("Owner")

     << tr("Map")

     << tr("Rules")

     << tr("Weapons");

    m_mapModel = DataManager::instance().mapModel();

}

QVariant RoomsListModel::headerData(int section, Qt::Orientation orientation, int role) const

{

    if(orientation == Qt::Vertical || role != Qt::DisplayRole)

        return QVariant();

    else

        return QVariant(m_headerData.at(section));

}

int RoomsListModel::rowCount(const QModelIndex & parent) const

{

    if(parent.isValid())

        return 0;

    else

        return m_data.size();

}

int RoomsListModel::columnCount(const QModelIndex & parent) const

{

    if(parent.isValid())

        return 0;

    else

        return c_nColumns;

}

QVariant RoomsListModel::data(const QModelIndex &index, int role) const

{

    int column = index.column();

    int row = index.row();

    // invalid index

    if (!index.isValid())

        return QVariant();

    // invalid row

    if ((row < 0) || (row >= m_data.size()))

        return QVariant();

    // invalid column

    if ((column < 0) || (column >= c_nColumns))

        return QVariant();

    // not a role we have data for

    if (role != Qt::DisplayRole)

        // only custom-align counters

        if ((role != Qt::TextAlignmentRole)

            || ((column != PlayerCountColumn) && (column != TeamCountColumn)))

                // only decorate name column

                if ((role != Qt::DecorationRole) || (column != NameColumn))

                    // only dye map column

                    if ((role != Qt::ForegroundRole) || (column != MapColumn))

                        return QVariant();

    // decorate room name based on room state

    if (role == Qt::DecorationRole)

    {

        const QIcon roomBusyIcon(":/res/iconDamage.png");

        const QIcon roomWaitingIcon(":/res/iconTime.png");

        if (m_data.at(row).at(0).isEmpty())

            return QVariant(roomWaitingIcon);

        else

            return QVariant(roomBusyIcon);

    }

    QString content = m_data.at(row).at(column);

    if (role == Qt::DisplayRole)

    {

        // supply in progress flag as bool

        if (column == 0)

            return QVariant(QString(!content.isEmpty()));

        // display room names

        if (column == 5)

        {

            // special names

            if (content[0] == '+')

            {

                if (content == "+rnd+") return tr("Random Map");

                if (content == "+maze+") return tr("Random Maze");

                if (content == "+drawn+") return tr("Hand-drawn");

            }

            // prefix ? if map not available

            if ((m_mapModel->indexOf(content) < 0))

                return QString ("? %1").arg(content);

        }

        return content;

    }

    // dye map names red if map not available

    if (role == Qt::ForegroundRole)

    {

        if ((m_mapModel->indexOf(content) < 0))

            return QBrush(QColor("darkred"));

        else

            return QVariant();

    }

    if (role == Qt::TextAlignmentRole)

    {

        return (int)(Qt::AlignHCenter | Qt::AlignVCenter);

    }

    Q_ASSERT(false);

    return QVariant();

}

void RoomsListModel::setRoomsList(const QStringList & rooms)

{

    beginResetModel();

    m_data.clear();

    int nRooms = rooms.size();

    for (int i = 0; i < nRooms; i += c_nColumns)

    {

        QStringList l;

#if QT_VERSION >= QT_VERSION_CHECK(4, 7, 0)

        l.reserve(c_nColumns);  // small optimisation not supported in old Qt

#endif

        for (int t = 0; t < c_nColumns; t++)

        {

            l.append(rooms[i + t]);

        }

        m_data.append(roomInfo2RoomRecord(l));

    }

    endResetModel();

}

void RoomsListModel::addRoom(const QStringList & info)

{

    beginInsertRows(QModelIndex(), 0, 0);

    m_data.prepend(roomInfo2RoomRecord(info));

    endInsertRows();

}

int RoomsListModel::rowOfRoom(const QString & name)

{

    int size = m_data.size();

    if (size < 1)

        return -1;

    int i = 0;

    // search for record with matching room name

    while(m_data[i].at(NameColumn) != name)

    {

        i++;

        if(i >= size)

            return -1;

    }

    return i;

}

void RoomsListModel::removeRoom(const QString & name)

{

    int i = rowOfRoom(name);

    if (i < 0)

        return;

    beginRemoveRows(QModelIndex(), i, i);

    m_data.removeAt(i);

    endRemoveRows();

}

void RoomsListModel::updateRoom(const QString & name, const QStringList & info)

{

    int i = rowOfRoom(name);

    if (i < 0)

        return;

    m_data[i] = roomInfo2RoomRecord(info);

    emit dataChanged(index(i, 0), index(i, columnCount(QModelIndex()) - 1));

}

QStringList RoomsListModel::roomInfo2RoomRecord(const QStringList & info)

{

    QStringList result;

    result = info;

    // for matters of less memory usage and quicker access store

    // the boolean string as either "t" or empty

    if (info[StateColumn].toLower() == "true")

        result[StateColumn] = "t";

    else

        result[StateColumn] = QString();

    return result;

}