/***************************************************************************
 *  The FreeMedForms project is a set of free, open source medical         *
 *  applications.                                                          *
 *  (C) 2008-2013 by Eric MAEKER, MD (France) <eric.maeker@gmail.com>      *
 *  All rights reserved.                                                   *
 *                                                                         *
 *  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 3 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 (COPYING.FREEMEDFORMS file).                   *
 *  If not, see <http://www.gnu.org/licenses/>.                            *
 ***************************************************************************/

/**
  \class Core::PluginDialog
  Shows information about plugins.
*/

#include "plugindialog.h"

#include <extensionsystem/pluginmanager.h>
#include <extensionsystem/pluginview.h>
#include <extensionsystem/plugindetailsview.h>
#include <extensionsystem/pluginerrorview.h>
#include <extensionsystem/pluginspec.h>

#include <utils/global.h>

#include <coreplugin/icore.h>
#include <coreplugin/imainwindow.h>

#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QDialog>
#include <QDialogButtonBox>
#include <QPushButton>
#include <QApplication>

using namespace Core;

PluginDialog::PluginDialog(QWidget *parent)
    : QDialog(parent),
      m_view(new ExtensionSystem::PluginView(ExtensionSystem::PluginManager::instance(), this))
{
    QVBoxLayout *vl = new QVBoxLayout(this);
    vl->addWidget(m_view);

    m_detailsButton = new QPushButton(tr("Details"), this);
    m_errorDetailsButton = new QPushButton(tr("Error Details"), this);
    m_closeButton = new QPushButton(tr("Close"), this);
    m_detailsButton->setEnabled(false);
    m_errorDetailsButton->setEnabled(false);
    m_closeButton->setEnabled(true);
    m_closeButton->setDefault(true);

    QHBoxLayout *hl = new QHBoxLayout;
    hl->addWidget(m_detailsButton);
    hl->addWidget(m_errorDetailsButton);
    hl->addStretch(5);
    hl->addWidget(m_closeButton);

    vl->addLayout(hl);

    setWindowTitle(tr("Installed Plugins"));
    setWindowFlags(Qt::Window | Qt::CustomizeWindowHint | Qt::WindowSystemMenuHint | Qt::WindowCloseButtonHint);

    connect(m_view, SIGNAL(currentPluginChanged(ExtensionSystem::PluginSpec*)),
            this, SLOT(updateButtons()));
    connect(m_view, SIGNAL(pluginActivated(ExtensionSystem::PluginSpec*)),
            this, SLOT(openDetails(ExtensionSystem::PluginSpec*)));
    connect(m_detailsButton, SIGNAL(clicked()), this, SLOT(openDetails()));
    connect(m_errorDetailsButton, SIGNAL(clicked()), this, SLOT(openErrorDetails()));
    connect(m_closeButton, SIGNAL(clicked()), this, SLOT(accept()));
    updateButtons();

    // resize and center window
    Utils::resizeAndCenter(this);
}

void PluginDialog::updateButtons()
{
    ExtensionSystem::PluginSpec *selectedSpec = m_view->currentPlugin();
    if (selectedSpec) {
        m_detailsButton->setEnabled(true);
        m_errorDetailsButton->setEnabled(selectedSpec->hasError());
    } else {
        m_detailsButton->setEnabled(false);
        m_errorDetailsButton->setEnabled(false);
    }
}


void PluginDialog::openDetails()
{
    openDetails(m_view->currentPlugin());
}

void PluginDialog::openDetails(ExtensionSystem::PluginSpec *spec)
{
    if (!spec)
        return;
    QDialog dialog(this);
    dialog.setWindowTitle(tr("Plugin Details of %1").arg(spec->name()));
    QVBoxLayout *layout = new QVBoxLayout;
    dialog.setLayout(layout);
    ExtensionSystem::PluginDetailsView *details = new ExtensionSystem::PluginDetailsView(&dialog);
    layout->addWidget(details);
    details->update(spec);
    QDialogButtonBox *buttons = new QDialogButtonBox(QDialogButtonBox::Close, Qt::Horizontal, &dialog);
    layout->addWidget(buttons);
    connect(buttons, SIGNAL(accepted()), &dialog, SLOT(accept()));
    connect(buttons, SIGNAL(rejected()), &dialog, SLOT(reject()));
    dialog.resize(400, 500);
    dialog.exec();
}

void PluginDialog::openErrorDetails()
{
    ExtensionSystem::PluginSpec *spec = m_view->currentPlugin();
    if (!spec)
        return;
    QDialog dialog(this);
    dialog.setWindowTitle(tr("Plugin Errors of %1").arg(spec->name()));
    QVBoxLayout *layout = new QVBoxLayout;
    dialog.setLayout(layout);
    ExtensionSystem::PluginErrorView *errors = new ExtensionSystem::PluginErrorView(&dialog);
    layout->addWidget(errors);
    errors->update(spec);
    QDialogButtonBox *buttons = new QDialogButtonBox(QDialogButtonBox::Close, Qt::Horizontal, &dialog);
    layout->addWidget(buttons);
    connect(buttons, SIGNAL(accepted()), &dialog, SLOT(accept()));
    connect(buttons, SIGNAL(rejected()), &dialog, SLOT(reject()));
    dialog.resize(500, 300);
    dialog.exec();
}

