/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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.
**
** In addition, as a special exception, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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****************************************************************************/

#ifndef PACKAGEUPLOADER_H
#define PACKAGEUPLOADER_H

#include <QObject>
#include <QSharedPointer>
#include <QString>

#include <ssh/sftpdefs.h>

namespace QSsh {
class SftpChannel;
class SshConnection;
}

namespace RemoteLinux {
namespace Internal {

class PackageUploader : public QObject
{
    Q_OBJECT
public:
    explicit PackageUploader(QObject *parent = 0);
    ~PackageUploader();

    // Connection has to be established already.
    void uploadPackage(QSsh::SshConnection *connection,
        const QString &localFilePath, const QString &remoteFilePath);
    void cancelUpload();

signals:
    void progress(const QString &message);
    void uploadFinished(const QString &errorMsg = QString());

private slots:
    void handleConnectionFailure();
    void handleSftpChannelInitialized();
    void handleSftpChannelInitializationFailed(const QString &error);
    void handleSftpJobFinished(QSsh::SftpJobId job, const QString &error);

private:
    enum State { InitializingSftp, Uploading, Inactive };

    void cleanup();
    void setState(State newState);

    State m_state;
    QSsh::SshConnection *m_connection;
    QSharedPointer<QSsh::SftpChannel> m_uploader;
    QString m_localFilePath;
    QString m_remoteFilePath;
};

} // namespace Internal
} // namespace RemoteLinux

#endif // PACKAGEUPLOADER_H