/***************************************************************************
 *   Copyright (C) 2006-2019 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 <QTextCodec>
#include <QSettings>
#include <QFile>
#include <qmmp/qmmp.h>
#include "settingsdialog.h"

SettingsDialog::SettingsDialog(bool using_rusxmms, QWidget *parent)
        : QDialog(parent)
{
    m_ui.setupUi(this);
    setAttribute(Qt::WA_DeleteOnClose);
    findCodecs();
    foreach (QTextCodec *codec, codecs)
    {
        m_ui.id3v1EncComboBox->addItem(codec->name());
        m_ui.id3v2EncComboBox->addItem(codec->name());
    }
    QSettings settings(Qmmp::configFile(), QSettings::IniFormat);
    settings.beginGroup("MPEG");

#if defined(WITH_MAD) && defined(WITH_MPG123)
    QString decoderName = settings.value("decoder", "mad").toString();
    m_ui.madRadioButton->setChecked(true);
    m_ui.mpg123RadioButton->setChecked(decoderName == "mpg123");
#elif defined(WITH_MAD)
    m_ui.madRadioButton->setChecked(true);
    m_ui.decoderGroupBox->setEnabled(false);
#elif defined(WITH_MPG123)
    m_ui.mpg123RadioButton->setChecked(true);
    m_ui.decoderGroupBox->setEnabled(false);
#endif

    int pos = m_ui.id3v1EncComboBox->findText
        (settings.value("ID3v1_encoding","ISO-8859-1").toString());
    m_ui.id3v1EncComboBox->setCurrentIndex(pos);
    pos = m_ui.id3v2EncComboBox->findText
        (settings.value("ID3v2_encoding","UTF-8").toString());
    m_ui.id3v2EncComboBox->setCurrentIndex(pos);

    m_ui.firstTagComboBox->setCurrentIndex(settings.value("tag_1", ID3v2).toInt());
    m_ui.secondTagComboBox->setCurrentIndex(settings.value("tag_2", APE).toInt());
    m_ui.thirdTagComboBox->setCurrentIndex(settings.value("tag_3", ID3v1).toInt());

    settings.endGroup();

    if(using_rusxmms)
    {
        m_ui.id3v1EncComboBox->setEnabled(false);
        m_ui.id3v2EncComboBox->setEnabled(false);
    }
}


SettingsDialog::~SettingsDialog()
{}

void SettingsDialog::accept()
{
    QSettings settings(Qmmp::configFile(), QSettings::IniFormat);
    settings.beginGroup("MPEG");
    settings.setValue("decoder", m_ui.mpg123RadioButton->isChecked() ? "mpg123" : "mad");
    settings.setValue("ID3v1_encoding", m_ui.id3v1EncComboBox->currentText());
    settings.setValue("ID3v2_encoding", m_ui.id3v2EncComboBox->currentText());
    settings.setValue("tag_1", m_ui.firstTagComboBox->currentIndex());
    settings.setValue("tag_2", m_ui.secondTagComboBox->currentIndex());
    settings.setValue("tag_3", m_ui.thirdTagComboBox->currentIndex());
    settings.endGroup();
    QDialog::accept();
}

void SettingsDialog::findCodecs()
{
    QMap<QString, QTextCodec *> codecMap;
    QRegExp iso8859RegExp("ISO[- ]8859-([0-9]+).*");

    foreach (int mib, QTextCodec::availableMibs())
    {
        QTextCodec *codec = QTextCodec::codecForMib(mib);

        QString sortKey = codec->name().toUpper();
        int rank;

        if (sortKey.startsWith("UTF-8"))
        {
            rank = 1;
        }
        else if (sortKey.startsWith("UTF-16"))
        {
            rank = 2;
        }
        else if (iso8859RegExp.exactMatch(sortKey))
        {
            if (iso8859RegExp.cap(1).size() == 1)
                rank = 3;
            else
                rank = 4;
        }
        else
        {
            rank = 5;
        }
        sortKey.prepend(QChar('0' + rank));

        codecMap.insert(sortKey, codec);
    }
    codecs = codecMap.values();
}