/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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#include "managedefinitionsdialog.h"
#include "manager.h"

#include <QtCore>
#include <QtCore/QUrl>
#include <QtCore/QIODevice>
#include <QtCore/QXmlStreamReader>
#include <QtCore/QXmlStreamAttributes>
#include <QtCore/QFuture>
#include <QtCore/QFutureWatcher>
#include <QtCore/QtConcurrentMap>
#include <QtGui/QMessageBox>

#include <QDebug>

using namespace TextEditor;
using namespace Internal;

ManageDefinitionsDialog::ManageDefinitionsDialog(
    const QList<HighlightDefinitionMetaData> &metaDataList, QWidget *parent) :
    QDialog(parent), m_definitionsMetaData(metaDataList)
{
    ui.setupUi(this);    
    ui.definitionsTable->setHorizontalHeaderLabels(
        QStringList() << tr("Definition Name") << tr("Installed") << tr("Available"));
    ui.definitionsTable->horizontalHeader()->setResizeMode(0, QHeaderView::Stretch);

    setWindowTitle(tr("Manage Definitions"));

    populateDefinitionsWidget();

    connect(ui.downloadButton, SIGNAL(clicked()), this, SLOT(downloadDefinitions()));
}

void ManageDefinitionsDialog::populateDefinitionsWidget()
{
    const int size = m_definitionsMetaData.size();
    ui.definitionsTable->setRowCount(size);
    for (int i = 0; i < size; ++i) {
        const HighlightDefinitionMetaData &downloadData = m_definitionsMetaData.at(i);

        QString installedVersion;
        const QString &id = Manager::instance()->definitionIdByName(downloadData.name());
        const QSharedPointer<HighlightDefinitionMetaData> &metaData =
            Manager::instance()->definitionMetaData(id);
        if (!metaData.isNull())
            installedVersion = metaData->version();

        for (int j = 0; j < 3; ++j) {
            QTableWidgetItem *item = new QTableWidgetItem;
            if (j == 0)
                item->setText(downloadData.name());
            else if (j == 1) {
                item->setText(installedVersion);
                item->setTextAlignment(Qt::AlignCenter);
            } else if (j == 2) {
                item->setText(downloadData.version());
                item->setTextAlignment(Qt::AlignCenter);
            }
            ui.definitionsTable->setItem(i, j, item);
        }
    }
}

void ManageDefinitionsDialog::downloadDefinitions()
{
    if (Manager::instance()->isDownloadingDefinitions()) {
        QMessageBox::information(
            this,
            tr("Download Information"),
            tr("There is already one download in progress. Please wait until it is finished."));
        return;
    }

    QList<QUrl> urls;
    foreach (const QModelIndex &index, ui.definitionsTable->selectionModel()->selectedRows())
        urls.append(m_definitionsMetaData.at(index.row()).url());
    Manager::instance()->downloadDefinitions(urls);
    close();
}

void ManageDefinitionsDialog::changeEvent(QEvent *e)
{
    QDialog::changeEvent(e);
    switch (e->type()) {
    case QEvent::LanguageChange:
        ui.retranslateUi(this);
        break;
    default:
        break;
    }
}