/*---------------------------------------------------------------------------*
  Project:  NintendoWare
  File:     io_HioFileStream.h
  
  Copyright (C)2009-2011 Nintendo/HAL Laboratory, Inc.  All rights reserved.
  
  These coded instructions, statements, and computer programs contain proprietary
  information of Nintendo and/or its licensed developers and are protected by
  national and international copyright laws. They may not be disclosed to third
  parties or copied or duplicated in any form, in whole or in part, without the
  prior written consent of Nintendo.
  
  The content herein is highly confidential and should be handled accordingly.
  
  $Revision: $
 *---------------------------------------------------------------------------*/

#ifndef NW_IO_HIO_FILE_STREAM_H_
#define NW_IO_HIO_FILE_STREAM_H_

#include <nn/hio.h>
#include <nw/io/io_FileStream.h>

namespace nw {
namespace io {

class HioFileStream : public FileStream
{
public:
    NW_UT_RUNTIME_TYPEINFO;

    HioFileStream();
    HioFileStream( const char* path, bit32 accessMode, nn::hio::HostFile::OpenDisp );
    // HioFileStream( const wchar_t* path );
#ifdef NW_PLATFORM_CTRWIN
    HioFileStream( ... );
#else
    HioFileStream( nn::hio::HostFile*, bit32 accessMode, bool closeEnable = true );
#endif
    virtual ~HioFileStream();

    bool Open( const char* path, bit32 accessMode, nn::hio::HostFile::OpenDisp );
    // bool Open( const wchar_t* path );
#ifdef NW_PLATFORM_CTRWIN
    bool Open( ... );
#else
    bool Open( nn::hio::HostFile*, bit32 accessMode, bool closeEnable = true );
#endif
    virtual void Close();
    virtual s32 Read( void* buf, u32 length );
    virtual s32 Write( const void* buf, u32 length );

    virtual void Seek( s32 offset, u32 origin );
    virtual u32 GetSize() const { return m_FilePosition.GetFileSize(); }
    virtual u32 Tell() const { return m_FilePosition.Tell(); }

    virtual bool CanSeek()   const { return true; }
    virtual bool CanCancel() const { return false; }
    virtual bool CanRead()   const { return m_CanRead; }
    virtual bool CanWrite()  const { return m_CanWrite; }
    virtual bool CanAsync()  const { return false; }

protected:

private:
    void Initialize();

    FilePosition m_FilePosition;

#ifdef NW_PLATFORM_CTRWIN
    // TODO:
#else
    nn::hio::HostFile m_File;
    nn::hio::HostFile* m_pOpenedFile;

#endif
    bool m_CanRead;
    bool m_CanWrite;
    bool m_IsAvailable;
    bool m_CloseOnDestroyFlag;  // true: デストラクト時にファイルをクローズする
    bool m_CloseEnableFlag;     // true: HioFileStream 内でファイルのクローズを許可

};


} // namespace nw::io
} // namespace nw


#endif /* NW_IO_HIO_FILE_STREAM_H_ */