/**************************************************************************
**
** 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.
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**************************************************************************/

#ifndef SFTCHANNEL_H
#define SFTCHANNEL_H

#include "sftpdefs.h"
#include "sftpincomingpacket_p.h"

#include <utils/utils_global.h>

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

namespace Utils {

namespace Internal {
class SftpChannelPrivate;
class SshChannelManager;
class SshSendFacility;
} // namespace Internal

class QTCREATOR_UTILS_EXPORT SftpChannel : public QObject
{
    Q_OBJECT

    friend class Internal::SftpChannelPrivate;
    friend class Internal::SshChannelManager;
public:
    typedef QSharedPointer<SftpChannel> Ptr;

    enum State { Uninitialized, Initializing, Initialized, Closing, Closed };
    State state() const;

    void initialize();
    void closeChannel();

    SftpJobId listDirectory(const QString &dirPath);
    SftpJobId createDirectory(const QString &dirPath);
    SftpJobId removeDirectory(const QString &dirPath);
    SftpJobId removeFile(const QString &filePath);
    SftpJobId renameFileOrDirectory(const QString &oldPath,
        const QString &newPath);
    SftpJobId createFile(const QString &filePath, SftpOverwriteMode mode);
    SftpJobId createLink(const QString &filePath, const QString &target);
    SftpJobId uploadFile(const QString &localFilePath,
        const QString &remoteFilePath, SftpOverwriteMode mode);
    SftpJobId downloadFile(const QString &remoteFilePath,
        const QString &localFilePath, SftpOverwriteMode mode);
    SftpJobId uploadDir(const QString &localDirPath,
        const QString &remoteParentDirPath);

    ~SftpChannel();

signals:
    void initialized();
    void initializationFailed(const QString &reason);
    void closed();

    // error.isEmpty <=> finished successfully
    void finished(Utils::SftpJobId job, const QString &error = QString());

    /*
     * This signal is only emitted by the "List Directory" operation,
     * one file at a time.
     // TODO: Also emit for each file copied by uploadDir().
     */
    void dataAvailable(Utils::SftpJobId job, const QString &data);

private:
    SftpChannel(quint32 channelId, Internal::SshSendFacility &sendFacility);

    Internal::SftpChannelPrivate *d;
};

} // namespace Utils

#endif // SFTPCHANNEL_H
