File: CharmCommandSession.h

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/*
  CharmCommandSession.h

  This file is part of Charm, a task-based time tracking application.

  Copyright (C) 2015-2018 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com

  Author: Guillermo A. Amaral <gamaral@kdab.com>

  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 2 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.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef CHARM_CI_CHARMCOMMANDSESSION_H
#define CHARM_CI_CHARMCOMMANDSESSION_H

#include <QObject>

#include "Core/CharmDataModelAdapterInterface.h"

class QIODevice;

class CharmCommandSession : public QObject, public CharmDataModelAdapterInterface
{
    enum State
    {
        InvalidState = 0,
        HandshakeState = 1,
        CommandState = 2
    };

    Q_OBJECT
public:
    explicit CharmCommandSession(QObject *parent = nullptr);
    ~CharmCommandSession();

    QIODevice *device() const;
    void setDevice(QIODevice *device);

public: /* CharmDataModelAdapterInterface */
    void resetTasks();
    void taskAboutToBeAdded(TaskId, int)
    {
    }

    void taskAdded(TaskId);
    void taskModified(TaskId);
    void taskParentChanged(TaskId, TaskId, TaskId)
    {
    }

    void taskAboutToBeDeleted(TaskId)
    {
    }

    void taskDeleted(TaskId)
    {
    }

    void resetEvents()
    {
    }

    void eventAboutToBeAdded(EventId)
    {
    }

    void eventAdded(EventId)
    {
    }

    void eventModified(EventId, Event)
    {
    }

    void eventAboutToBeDeleted(EventId)
    {
    }

    void eventDeleted(EventId)
    {
    }

    void eventActivated(EventId id);
    void eventDeactivated(EventId id);

protected:
    void reset();

private Q_SLOTS:
    void onReadyRead();

private:
    void sendAck(const QString &comment);
    void sendNak(const QString &comment);
    void sendComment(const QString &comment);

private:
    void startHandshake();
    void startCommand();
    void handleHandshare(QByteArray payload);
    void handleCommand(QByteArray payload);

private:
    QIODevice *m_device;
    State m_state;
};

#endif // CHARM_CI_CHARMCOMMANDSESSION_H