Bundle.h

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// Bundle.h
//
// Copyright (c) 2010, 2015 Michael Imamura.
//
// Licensed under GrokkSoft HoverRace SourceCode License v1.0(the "License");
// you may not use this file except in compliance with the License.
//
// A copy of the license should have been attached to the package from which
// you have taken this file. If you can not find the license you can not use
// this file.
//
//
// The author makes no representations about the suitability of
// this software for any purpose.  It is provided "as is" "AS IS",
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
// implied.
//
// See the License for the specific language governing permissions
// and limitations under the License.

#pragma once

#include "../Util/OS.h"

#if defined(_WIN32) && defined(HR_ENGINE_SHARED)
#   ifdef MR_ENGINE
#       define MR_DllDeclare   __declspec( dllexport )
#   else
#       define MR_DllDeclare   __declspec( dllimport )
#   endif
#else
#   define MR_DllDeclare
#endif

namespace HoverRace {
namespace Parcel {

class RecordFile;

class MR_DllDeclare Bundle
{
public:
    Bundle(const Util::OS::path_t &dir,
        std::shared_ptr<Bundle> subBundle = std::shared_ptr<Bundle>());
    virtual ~Bundle() { }

    virtual std::shared_ptr<RecordFile> OpenParcel(
        const std::string &name, bool writing = false) const;

private:
    class MR_DllDeclare Iterator :
        public std::iterator<std::input_iterator_tag, Util::OS::dirEnt_t>
    {
    public:
        Iterator();
        Iterator(const Bundle *bundle);

    public:
        bool operator==(const Iterator &other) const
        {
            return (bundle == other.bundle) && (iter == other.iter);
        }
        bool operator!=(const Iterator &other) const
        {
            return (bundle != other.bundle) || (iter != other.iter);
        }

        Util::OS::dirEnt_t &operator*() const { return *iter; }
        Util::OS::dirEnt_t *operator->() const { return &*iter; }

        Iterator &operator++();
        Iterator operator++(int);

    private:
        void FindNextValidBundle();

    private:
        const Bundle *bundle;
        Util::OS::dirIter_t iter;
        static const Util::OS::dirIter_t END;
    };
public:
    using iterator = Iterator;
    using const_iterator = Iterator;
    using value_type = Util::OS::dirEnt_t;

    iterator begin() { return iterator(this); }
    iterator end() { return END; }
    const_iterator begin() const { return iterator(this); }
    const_iterator end() const { return END; }
    const_iterator cbegin() const { return iterator(this); }
    const_iterator cend() const { return END; }

private:
    Util::OS::path_t dir;
    std::shared_ptr<Bundle> subBundle;
    static const iterator END;
};

}  // namespace Parcel
}  // namespace HoverRace

#undef MR_DllDeclare