/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** No Commercial Usage
**
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
**
** 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
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
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**************************************************************************/

#ifndef FILESEARCH_H
#define FILESEARCH_H

#include "utils_global.h"

#include <QtCore/QStringList>
#include <QtCore/QFuture>
#include <QtCore/QMap>
#include <QtCore/QStack>
#include <QtCore/QDir>
#include <QtGui/QTextDocument>

namespace Utils {

class QTCREATOR_UTILS_EXPORT FileIterator
{
public:
    FileIterator();
    explicit FileIterator(const QStringList &fileList);
    ~FileIterator();

    virtual bool hasNext() const;
    virtual QString next();
    virtual int maxProgress() const;
    virtual int currentProgress() const;

private:
    QStringList m_list;
    QStringListIterator *m_iterator;
    int m_index;
};

class QTCREATOR_UTILS_EXPORT SubDirFileIterator : public FileIterator
{
public:
    SubDirFileIterator(const QStringList &directories, const QStringList &filters);

    bool hasNext() const;
    QString next();
    int maxProgress() const;
    int currentProgress() const;

private:
    QStringList m_filters;
    mutable QStack<QDir> m_dirs;
    mutable QStack<qreal> m_progressValues;
    mutable QStack<bool> m_processedValues;
    mutable qreal m_progress;
    mutable QStringList m_currentFiles;
};

class QTCREATOR_UTILS_EXPORT FileSearchResult
{
public:
    FileSearchResult() {}
    FileSearchResult(QString fileName, int lineNumber, QString matchingLine,
                     int matchStart, int matchLength,
                     QStringList regexpCapturedTexts)
            : fileName(fileName),
            lineNumber(lineNumber),
            matchingLine(matchingLine),
            matchStart(matchStart),
            matchLength(matchLength),
            regexpCapturedTexts(regexpCapturedTexts)
    {
    }
    QString fileName;
    int lineNumber;
    QString matchingLine;
    int matchStart;
    int matchLength;
    QStringList regexpCapturedTexts;
};

typedef QList<FileSearchResult> FileSearchResultList;

QTCREATOR_UTILS_EXPORT QFuture<FileSearchResultList> findInFiles(const QString &searchTerm, FileIterator *files,
    QTextDocument::FindFlags flags, QMap<QString, QString> fileToContentsMap = QMap<QString, QString>());

QTCREATOR_UTILS_EXPORT QFuture<FileSearchResultList> findInFilesRegExp(const QString &searchTerm, FileIterator *files,
    QTextDocument::FindFlags flags, QMap<QString, QString> fileToContentsMap = QMap<QString, QString>());

QTCREATOR_UTILS_EXPORT QString expandRegExpReplacement(const QString &replaceText, const QStringList &capturedTexts);

} // namespace Utils

#endif // FILESEARCH_H