/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
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** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
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#pragma once

#include "projectexplorer_export.h"

#include "runconfiguration.h"

#include <utils/environment.h>

#include <QList>
#include <QVariantMap>

namespace ProjectExplorer {

class PROJECTEXPLORER_EXPORT EnvironmentAspect : public IRunConfigurationAspect
{
    Q_OBJECT

public:
    // IRunConfigurationAspect:
    RunConfigWidget *createConfigurationWidget() override;

    virtual QList<int> possibleBaseEnvironments() const = 0;
    virtual QString baseEnvironmentDisplayName(int base) const = 0;

    int baseEnvironmentBase() const;
    void setBaseEnvironmentBase(int base);

    QList<Utils::EnvironmentItem> userEnvironmentChanges() const { return m_changes; }
    void setUserEnvironmentChanges(const QList<Utils::EnvironmentItem> &diff);

    // The environment the user chose as base for his modifications.
    virtual Utils::Environment baseEnvironment() const = 0;
    // The environment including the user's modifications.
    Utils::Environment environment() const;

signals:
    void baseEnvironmentChanged();
    void userEnvironmentChangesChanged(const QList<Utils::EnvironmentItem> &diff);
    void environmentChanged();

protected:
    explicit EnvironmentAspect(RunConfiguration *rc);
    void fromMap(const QVariantMap &map) override;
    void toMap(QVariantMap &map) const override;

private:
    mutable int m_base;
    QList<Utils::EnvironmentItem> m_changes;
};

} // namespace ProjectExplorer