/**
 ******************************************************************************
 *
 * @file       pluginspec.h
 * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
 *             Parts by Nokia Corporation (qt-info@nokia.com) Copyright (C) 2009.
 * @brief      
 * @see        The GNU Public License (GPL) Version 3
 * @defgroup   
 * @{
 * 
 *****************************************************************************/
/* 
 * 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 3 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, write to the Free Software Foundation, Inc., 
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#ifndef PLUGINSPEC_H
#define PLUGINSPEC_H

#include "extensionsystem_global.h"

#include <QtCore/QString>
#include <QtCore/QList>

QT_BEGIN_NAMESPACE
class QStringList;
QT_END_NAMESPACE

namespace ExtensionSystem {

namespace Internal {
    class PluginSpecPrivate;
    class PluginManagerPrivate;
}

class IPlugin;

struct EXTENSIONSYSTEM_EXPORT PluginDependency
{
    QString name;
    QString version;
    bool operator==(const PluginDependency &other);
};

struct EXTENSIONSYSTEM_EXPORT PluginArgumentDescription
{
    QString name;
    QString parameter;
    QString description;
};

class EXTENSIONSYSTEM_EXPORT PluginSpec
{
public:
    enum State { Invalid, Read, Resolved, Loaded, Initialized, Running, Stopped, Deleted};

    ~PluginSpec();

    // information from the xml file, valid after 'Read' state is reached
    QString name() const;
    QString version() const;
    QString compatVersion() const;
    QString vendor() const;
    QString copyright() const;
    QString license() const;
    QString description() const;
    QString url() const;
    QList<PluginDependency> dependencies() const;

    typedef QList<PluginArgumentDescription> PluginArgumentDescriptions;
    PluginArgumentDescriptions argumentDescriptions() const;

    // other information, valid after 'Read' state is reached
    QString location() const;
    QString filePath() const;

    QStringList arguments() const;
    void setArguments(const QStringList &arguments);
    void addArgument(const QString &argument);

    bool provides(const QString &pluginName, const QString &version) const;

    // dependency specs, valid after 'Resolved' state is reached
    QList<PluginSpec *> dependencySpecs() const;

    // linked plugin instance, valid after 'Loaded' state is reached
    IPlugin *plugin() const;

    // state
    State state() const;
    bool hasError() const;
    QString errorString() const;

private:
    PluginSpec();

    Internal::PluginSpecPrivate *d;
    friend class Internal::PluginManagerPrivate;
};

} // namespace ExtensionSystem

#endif // PLUGINSPEC_H