/***************************************************************************
 *   Copyright (C) 2018-2024 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 <QVBoxLayout>
#include "ui_covereditor.h"
#include "coverviewer_p.h"
#include "covereditor_p.h"

CoverEditor::CoverEditor(MetaDataModel *model, const QString &coverPath, QWidget *parent) :
    QWidget(parent), m_ui(new Ui::CoverEditor)
{
    m_ui->setupUi(this);
    m_model = model;
    m_coverPath = coverPath;
    m_editable = m_model && (m_model->dialogHints() & MetaDataModel::IsCoverEditable) && !m_model->isReadOnly();

    m_ui->sourceComboBox->addItem(tr("External file"));
    m_ui->sourceComboBox->addItem(tr("Tag"));

    m_viewer = new CoverViewer(this);
    QVBoxLayout *layout = new QVBoxLayout();
    layout->addWidget(m_viewer);
    m_ui->frame->setLayout(layout);

    if((m_model && !m_model->cover().isNull()) || (m_editable && m_coverPath.isEmpty()))
        m_ui->sourceComboBox->setCurrentIndex(1);
    else
        m_ui->sourceComboBox->setCurrentIndex(0);

    on_sourceComboBox_activated(m_ui->sourceComboBox->currentIndex());

    if(!m_editable || m_coverPath.isEmpty())
        m_ui->sourceComboBox->setEnabled(false);
}

CoverEditor::~CoverEditor()
{
    delete m_ui;
}

bool CoverEditor::isEditable() const
{
    return m_editable;
}

void CoverEditor::save()
{
    m_viewer->hasImage() ? m_model->setCover(m_viewer->image()) : m_model->removeCover();
}

void CoverEditor::on_sourceComboBox_activated(int index)
{
    if(index == 0)
    {
        m_viewer->setImage(QImage(m_coverPath));
        m_ui->loadButton->setEnabled(false);
        m_ui->deleteButton->setEnabled(false);
        m_ui->saveAsButton->setEnabled(m_viewer->hasImage());
    }
    else if(index == 1)
    {
        if(m_model)
            m_viewer->setImage(m_model->cover());
        m_ui->loadButton->setEnabled(m_editable);
        m_ui->deleteButton->setEnabled(m_editable && m_viewer->hasImage());
        m_ui->saveAsButton->setEnabled(m_viewer->hasImage());
    }
}

void CoverEditor::on_loadButton_clicked()
{
    m_viewer->load();
    m_ui->deleteButton->setEnabled(m_viewer->hasImage());
    m_ui->saveAsButton->setEnabled(m_viewer->hasImage());
}

void CoverEditor::on_deleteButton_clicked()
{
    m_viewer->clear();
    m_ui->deleteButton->setEnabled(m_viewer->hasImage());
    m_ui->saveAsButton->setEnabled(m_viewer->hasImage());
}

void CoverEditor::on_saveAsButton_clicked()
{
    m_viewer->saveAs();
}
