#pragma once

//#include <QtCore/private/qabstractfileengine_p.h>
#include <QtCore/5.3.1/QtCore/private/qabstractfileengine_p.h>

#include <Utilities/PackageReader.h>

namespace qml
{
    class ResourcesEngineHandler : public QAbstractFileEngineHandler
    {
    public:
        ResourcesEngineHandler();

        QAbstractFileEngine*    create(const QString& fileName) const;

    private:
        QString mCurrentDir;
    };

    class ResourcesEngine : public QAbstractFileEngine
    {
    public:
        ResourcesEngine(const QString& fileName);

        bool open(QIODevice::OpenMode openMode) override;
        bool close() override;
        bool flush() override;
        bool syncToDisk() override;
        qint64 size() const override;
        qint64 pos() const override;
        bool seek(qint64 pos) override;
        bool isSequential() const override;
        bool remove() override;
        bool copy(const QString& newName) override;
        bool rename(const QString& newName) override;
        bool renameOverwrite(const QString& newName) override;
        bool link(const QString& newName) override;
        bool mkdir(const QString& dirName, bool createParentDirectories) const override;
        bool rmdir(const QString& dirName, bool recurseParentDirectories) const override;
        bool setSize(qint64 size) override;
        bool caseSensitive() const override;
        bool isRelativePath() const override;
        QStringList entryList(QDir::Filters filters, const QStringList& filterNames) const override;
        FileFlags fileFlags(FileFlags type = FileInfoAll) const override;
        bool setPermissions(uint perms) override;
        QString fileName(FileName file = DefaultName) const override;
        uint ownerId(FileOwner) const override;
        QString owner(FileOwner) const override;
        QDateTime fileTime(FileTime time) const override;
        void setFileName(const QString& file) override;
        int handle() const override;

        Iterator *beginEntryList(QDir::Filters filters, const QStringList& filterNames) override;
        Iterator *endEntryList() override;

        qint64 read(char *data, qint64 maxlen) override;
        qint64 readLine(char *data, qint64 maxlen) override;
        qint64 write(const char *data, qint64 len) override;
        bool extension(Extension extension, const ExtensionOption *option = 0, ExtensionReturn *output = 0) override;
        bool supportsExtension(Extension extension) const override;

    private:
        QString             mPath;
        packageReader::File mFile;
    };

    class ResourcesEngineIterator : public QAbstractFileEngineIterator
    {
    public:
        ResourcesEngineIterator(QDir::Filters filters, const QStringList& nameFilters, const std::vector<packageReader::FileInfo>& infos, bool haveFolders, bool isEndIterator);

        QString next() override;
        bool    hasNext() const override;
        QString currentFileName() const override;

    private:
        bool                                    mHaveFolders;
        bool                                    mIsEndIterator;
        int                                     mIndex;
        std::vector<packageReader::FileInfo>    mFiles;
    };
}