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/****************************************************************************
**
** Copyright (C) 2016 Pelagicore AG
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Pelagicore Application Manager.
**
** $QT_BEGIN_LICENSE:LGPL-QTAS$
** Commercial License Usage
** Licensees holding valid commercial Qt Automotive Suite 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 The Qt Company.  For
** licensing terms and conditions see https://www.qt.io/terms-conditions.
** For further information use the contact form at https://www.qt.io/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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
** SPDX-License-Identifier: LGPL-3.0
**
****************************************************************************/

#pragma once

#include <QObject>
#include <QPair>
#include <QVector>

class AbstractContainer;
class AbstractRuntime;


class QuickLauncher : public QObject
{
    Q_OBJECT

public:
    static QuickLauncher *instance();
    ~QuickLauncher();

    void initialize(int runtimesPerContainer, qreal idleLoad = 0);

    QPair<AbstractContainer *, AbstractRuntime *> take(const QString &containerId, const QString &runtimeId);

public slots:
    void rebuild();

private:
    QuickLauncher(QObject *parent = 0);
    QuickLauncher(const QuickLauncher &);
    QuickLauncher &operator=(const QuickLauncher &);
    static QuickLauncher *s_instance;

    void triggerRebuild(int delay = 0);
    void removeEntry(AbstractContainer *container, AbstractRuntime *runtime);

    struct QuickLaunchEntry
    {
        QString m_containerId;
        QString m_runtimeId;
        int m_maximum = 1;
        QList<QPair<AbstractContainer *, AbstractRuntime *>> m_containersAndRuntimes;
    };

    QVector<QuickLaunchEntry> m_quickLaunchPool;
    bool m_onlyRebuildWhenIdle = false;
};