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#ifndef LIB7Z_FACADE_H
#define LIB7Z_FACADE_H

#include "installer_global.h"
#include "errors.h"

#include <QDateTime>
#include <QFile>
#include <QPoint>
#include <QString>
#include <QVector>

#include <Common/MyCom.h>
#include <7zip/UI/Common/Update.h>

namespace Lib7z {
    void INSTALLER_EXPORT initSevenZ();

    class INSTALLER_EXPORT SevenZipException : public QInstaller::Error
    {
    public:
        explicit SevenZipException(const QString &msg)
            : QInstaller::Error(msg)
        {}

        explicit SevenZipException(const char *msg)
            : QInstaller::Error(QString::fromLocal8Bit(msg))
        {}
    };

    struct INSTALLER_EXPORT File
    {
    public:
        QString path;
        QDateTime mtime;
        QPoint archiveIndex;
        bool isDirectory = false;
        quint64 compressedSize = 0;
        quint64 uncompressedSize = 0;
        QFile::Permissions permissions = 0;
    };
    INSTALLER_EXPORT bool operator==(const File &lhs, const File &rhs);

    class INSTALLER_EXPORT ExtractCallback : public IArchiveExtractCallback, public CMyUnknownImp
    {
        Q_DISABLE_COPY(ExtractCallback)

    public:
        ExtractCallback() = default;
        virtual ~ExtractCallback() = default;

        void setArchive(CArc *carc) { arc = carc; }
        void setTarget(const QString &dir) { targetDir = dir; }

        MY_UNKNOWN_IMP
        INTERFACE_IArchiveExtractCallback(;)

    protected:
        virtual bool prepareForFile(const QString & /*filename*/) { return true; }
        virtual void setCurrentFile(const QString &filename) { Q_UNUSED(filename) }
        virtual HRESULT setCompleted(quint64 /*completed*/, quint64 /*total*/) { return S_OK; }

    private:
        CArc *arc = 0;

        QString targetDir;
        quint64 total = 0;
        quint64 completed = 0;
        quint32 currentIndex = 0;
    };

    class INSTALLER_EXPORT UpdateCallback : public IUpdateCallbackUI2, public CMyUnknownImp
    {
        Q_DISABLE_COPY(UpdateCallback)

    public:
        UpdateCallback() = default;
        virtual ~UpdateCallback() = default;

        MY_UNKNOWN_IMP
        INTERFACE_IUpdateCallbackUI2(;)
    };

    enum struct QTmpFile {
        No,
        Yes
    };

    bool INSTALLER_EXPORT isSupportedArchive(QFileDevice *archive);
    bool INSTALLER_EXPORT isSupportedArchive(const QString &archive);

    QVector<File> INSTALLER_EXPORT listArchive(QFileDevice *archive);

    void INSTALLER_EXPORT createArchive(QFileDevice *archive, const QStringList &sources,
        UpdateCallback *callback = 0);
    void INSTALLER_EXPORT createArchive(const QString &archive, const QStringList &sources,
        QTmpFile mode, UpdateCallback *callback = 0);

    void INSTALLER_EXPORT extractArchive(QFileDevice *archive, const QString &targetDirectory,
        ExtractCallback *callback = 0);
}

#endif // LIB7Z_FACADE_H