/***************************************************************************
 *   Copyright (C) 2013-2022 by Ilya Kotov                                 *
 *   forkotov02@ya.ru                                                      *
 *                                                                         *
 *   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 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   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.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
 ***************************************************************************/

#include <QRegularExpression>
#include <sidplayfp/SidDatabase.h>
#include "sidhelper.h"

SIDHelper::SIDHelper(SidDatabase *db) : m_db(db)
{}

SIDHelper::~SIDHelper()
{
    if(m_tune)
        delete m_tune;
    m_tune = nullptr;
}

SidTune *SIDHelper::load(const QString &url)
{
    if(m_tune)
    {
        delete m_tune;
        m_tune = nullptr;
    }
    QString path = url;
    int track = 1;
    if(url.contains("://"))
    {
        path.remove("sid://");
        path.remove(QRegularExpression("#\\d+$"));
        track = url.section("#", -1).toInt();
    }
    m_tune = new SidTune(qPrintable(path));
    m_tune->selectSong(track - 1);
    m_path = path;
    return m_tune;
}

QList<TrackInfo *> SIDHelper::createPlayList(TrackInfo::Parts parts)
{
    QList<TrackInfo *> list;
    if(!m_tune || !m_tune->getInfo())
        return list;
    int count = m_tune->getInfo()->songs();

    char md5[SidTune::MD5_LENGTH+1];
    m_tune->createMD5(md5);

    for(int i = 1; i <= count; ++i)
    {
        m_tune->selectSong(i+1);
        TrackInfo *info = new TrackInfo();

        if(parts & TrackInfo::MetaData)
        {
            const SidTuneInfo *tune_info = m_tune->getInfo();
            info->setValue(Qmmp::TITLE, tune_info->infoString(0));
            info->setValue(Qmmp::ARTIST, tune_info->infoString(1));
            info->setValue(Qmmp::COMMENT, tune_info->commentString(0));
            info->setValue(Qmmp::TRACK, i);
        }
        int length = m_db->length(md5, i);
        if(length > -1)
            info->setDuration(length * 1000);

        info->setPath("sid://" + m_path + QString("#%1").arg(i));
        list << info;
    }
    return list;
}
