/****************************************************************************
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
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** This file is part of the QtCore module of the Qt Toolkit.
**
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** accordance with the commercial license agreement provided with the
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** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
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****************************************************************************/

#ifndef QLOGGINGREGISTRY_P_H
#define QLOGGINGREGISTRY_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of a number of Qt sources files.  This header file may change from
// version to version without notice, or even be removed.
//
// We mean it.
//

#include <QtCore/qloggingcategory.h>
#include <QtCore/qmap.h>
#include <QtCore/qmutex.h>
#include <QtCore/qstring.h>
#include <QtCore/qtextstream.h>
#include <QtCore/qvector.h>

QT_BEGIN_NAMESPACE

class QLoggingRule
{
public:
    QLoggingRule();
    QLoggingRule(const QString &pattern, bool enabled);
    int pass(const QString &categoryName, QtMsgType type) const;

    enum PatternFlag {
        Invalid = 0x0,
        FullText = 0x1,
        LeftFilter = 0x2,
        RightFilter = 0x4,
        MidFilter = LeftFilter |  RightFilter
    };
    Q_DECLARE_FLAGS(PatternFlags, PatternFlag)

    QString pattern;
    PatternFlags flags;
    bool enabled;

private:
    void parse();
};

Q_DECLARE_OPERATORS_FOR_FLAGS(QLoggingRule::PatternFlags)
Q_DECLARE_TYPEINFO(QLoggingRule, Q_MOVABLE_TYPE);

class QLoggingRulesParser
{
private:
    explicit QLoggingRulesParser(class QLoggingRegistry *logging);

public:
    void setRules(const QString &content);

private:
    void parseRules(QTextStream &stream);
    QLoggingRegistry *registry;

    friend class QLoggingRegistry;
};

class QLoggingRegistry
{
public:
    QLoggingRegistry();

    void registerCategory(QLoggingCategory *category);
    void unregisterCategory(QLoggingCategory *category);

    void setRules(const QVector<QLoggingRule> &rules);

    QLoggingCategory::CategoryFilter
    installFilter(QLoggingCategory::CategoryFilter filter);

    static QLoggingRegistry *instance();

    QLoggingRulesParser rulesParser;

private:
    static void defaultCategoryFilter(QLoggingCategory *category);

    QMutex registryMutex;
    QVector<QLoggingRule> rules;
    QList<QLoggingCategory*> categories;
    QLoggingCategory::CategoryFilter categoryFilter;
};

QT_END_NAMESPACE

#endif // QLOGGINGREGISTRY_P_H