/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** 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.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/

#ifndef VCSMANAGER_H
#define VCSMANAGER_H

#include "core_global.h"

#include <QtCore/QString>
#include <QtCore/QObject>

namespace Core {

class VcsManagerPrivate;
class IVersionControl;

/* VcsManager:
 * 1) Provides functionality for finding the IVersionControl * for a given
 *    filename (findVersionControlForDirectory). Note that the VcsManager assumes
 *    that if a IVersionControl * manages a directory, then it also manages
 *    all the files and all the subdirectories.
 *    It works by asking all IVersionControl * if they manage the file, and ask
 *    for the topmost directory it manages. This information is cached and
 *    VCSManager thus knows pretty fast which IVersionControl * is responsible.
 * 2) Passes on the changes from the version controls caused by updating or
 *    branching repositories and routes them to its signals (repositoryChanged,
 *    filesChanged). */

class CORE_EXPORT VcsManager : public QObject
{
    Q_OBJECT

public:
    explicit VcsManager(QObject *parent = 0);
    virtual ~VcsManager();

    void extensionsInitialized();

    void resetVersionControlForDirectory(const QString &inputDirectory);
    IVersionControl *findVersionControlForDirectory(const QString &directory,
                                                    QString *topLevelDirectory = 0);
    IVersionControl *checkout(const QString &versionControlType,
                              const QString &directory,
                              const QByteArray &url);
    // Used only by Trac plugin.
    bool findVersionControl(const QString &versionControl);
    // Used only by Trac plugin.
    QString repositoryUrl(const QString &directory);

    // Shows a confirmation dialog, whether the file should also be deleted
    // from revision control Calls sccDelete on the file. Returns false
    // if a failure occurs
    bool promptToDelete(const QString &fileName);
    bool promptToDelete(IVersionControl *versionControl, const QString &fileName);

signals:
    void repositoryChanged(const QString &repository);

private:
    VcsManagerPrivate *d;
};

} // namespace Core

#endif // VCSMANAGER_H
