/****************************************************************************
** Filename: unzip.h
** Last updated [dd/mm/yyyy]: 27/03/2011
**
** pkzip 2.0 decompression.
**
** Some of the code has been inspired by other open source projects,
** (mainly Info-Zip and Gilles Vollant's minizip).
** Compression and decompression actually uses the zlib library.
**
** Copyright (C) 2007-2012 Angius Fabrizio. All rights reserved.
**
** This file is part of the OSDaB project (http://osdab.42cows.org/).
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See the file LICENSE.GPL that came with this software distribution or
** visit http://www.gnu.org/copyleft/gpl.html for GPL licensing information.
**
**********************************************************************/

#ifndef OSDAB_UNZIP__H
#define OSDAB_UNZIP__H

#include "zipglobal.h"

#include <QDateTime>
#include <QMap>
#include <QtGlobal>

#include "zlib/zlib.h"

class QDir;
class QFile;
class QIODevice;
class QString;
class QStringList;

OSDAB_BEGIN_NAMESPACE(Zip)

class UnzipPrivate;

class OSDAB_ZIP_EXPORT UnZip
{
public:
    enum ErrorCode {
        Ok,
        ZlibInit,
        ZlibError,
        OpenFailed,
        PartiallyCorrupted,
        Corrupted,
        WrongPassword,
        NoOpenArchive,
        FileNotFound,
        ReadFailed,
        WriteFailed,
        SeekFailed,
        CreateDirFailed,
        InvalidDevice,
        InvalidArchive,
        HeaderConsistencyError,

        Skip, SkipAll // internal use only
    };

    enum ExtractionOption {
        ExtractPaths = 0x0001,
        SkipPaths = 0x0002,
        VerifyOnly = 0x0004,
        NoSilentDirectoryCreation = 0x0008
    };
    Q_DECLARE_FLAGS(ExtractionOptions, ExtractionOption)

    enum CompressionMethod {
        NoCompression, Deflated, UnknownCompression
    };

    enum FileType {
        File, Directory
    };

    struct ZipEntry {
        ZipEntry();

        QString filename;
        QString comment;

        quint32 compressedSize;
        quint32 uncompressedSize;
        quint32 crc32;

        QDateTime lastModified;

        CompressionMethod compression;
        FileType type;

        bool encrypted;
    };

    UnZip();
    virtual ~UnZip();

    bool isOpen() const;

    ErrorCode openArchive(const QString &filename);
    ErrorCode openArchive(QIODevice* device);
    void closeArchive();

    QString archiveComment() const;

    QString formatError(UnZip::ErrorCode c) const;

    bool contains(const QString &file) const;

    QStringList fileList() const;
    QList<ZipEntry> entryList() const;

    ErrorCode verifyArchive();

    ErrorCode extractAll(const QString &dirname, ExtractionOptions options = ExtractPaths);
    ErrorCode extractAll(const QDir &dir, ExtractionOptions options = ExtractPaths);

    ErrorCode extractFile(const QString &filename, const QString &dirname, ExtractionOptions options = ExtractPaths);
    ErrorCode extractFile(const QString &filename, const QDir &dir, ExtractionOptions options = ExtractPaths);
    ErrorCode extractFile(const QString &filename, QIODevice* device, ExtractionOptions options = ExtractPaths);

    ErrorCode extractFiles(const QStringList &filenames, const QString &dirname, ExtractionOptions options = ExtractPaths);
    ErrorCode extractFiles(const QStringList &filenames, const QDir &dir, ExtractionOptions options = ExtractPaths);

    void setPassword(const QString &pwd);

private:
    UnzipPrivate* d;
};

Q_DECLARE_OPERATORS_FOR_FLAGS(UnZip::ExtractionOptions)

OSDAB_END_NAMESPACE

#endif // OSDAB_UNZIP__H
