/*
 *  Copyright (C) 2011 Felix Geyer <debfx@fobos.de>
 *
 *  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 or (at your option)
 *  version 3 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, see <http://www.gnu.org/licenses/>.
 */

#include "FileDialog.h"

#include "core/Config.h"

QString FileDialog::getOpenFileName(QWidget* parent, const QString& caption, QString dir,
                                    const QString& filter, QString* selectedFilter,
                                    QFileDialog::Options options)
{
    if (!m_nextFileName.isEmpty()) {
        QString result = m_nextFileName;
        m_nextFileName = "";
        return result;
    }
    else {
        if (dir.isEmpty()) {
            dir = config()->get("LastDir").toString();
        }

        QString result = QFileDialog::getOpenFileName(parent, caption, dir, filter,
                                                      selectedFilter, options);

        if (!result.isEmpty()) {
            config()->set("LastDir", QFileInfo(result).absolutePath());
        }

        return result;
    }
}

QString FileDialog::getSaveFileName(QWidget* parent, const QString& caption, QString dir,
                                    const QString& filter, QString* selectedFilter,
                                    QFileDialog::Options options)
{
    if (!m_nextFileName.isEmpty()) {
        QString result = m_nextFileName;
        m_nextFileName = "";
        return result;
    }
    else {
        if (dir.isEmpty()) {
            dir = config()->get("LastDir").toString();
        }

        QString result = QFileDialog::getSaveFileName(parent, caption, dir, filter,
                                                      selectedFilter, options);

        if (!result.isEmpty()) {
            config()->set("LastDir", QFileInfo(result).absolutePath());
        }

        return result;
    }
}

void FileDialog::setNextFileName(const QString& fileName)
{
    m_nextFileName = fileName;
}

FileDialog::FileDialog()
{
}

FileDialog* fileDialog()
{
    static FileDialog* instance(0);

    if (!instance) {
        instance = new FileDialog();
    }

    return instance;
}