/*---------------------------------------------------------------------------*
  Project:  Horizon
  File:     FileChecker.cpp

  Copyright 2009 Nintendo.  All rights reserved.

  These coded instructions, statements, and computer programs contain
  proprietary information of Nintendo of America Inc. and/or Nintendo
  Company Ltd., and are protected by Federal copyright law.  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.

  $Rev$
 *---------------------------------------------------------------------------*/

#include <nn.h>
#include "FileChecker.h"
#include "SdMountManager.h"

namespace common
{

bool s_FileExistsChecked[EXISTS_MAX];
bool s_FileExistsCheckeResult[EXISTS_MAX];

bool CheckFileExists(const wchar_t* path)
{
    nn::Result result;
    bool exist = false;
    result = common::SdMountManager::Mount();

    if (result.IsSuccess())
    {
        nn::fs::FileInputStream fis;

        result = fis.TryInitialize(path);
        if(result.IsSuccess())
        {
            exist = true;
        }
        fis.Finalize();
    }

    common::SdMountManager::Unmount();


    return exist;
}

bool ExistsFile(FileExistsCheck index)
{
    if(index > EXISTS_MAX)
    {
        NN_LOG("Invalid File index!!\n");
        return false;
    }

    if(s_FileExistsChecked[index])
    {
        return s_FileExistsCheckeResult[index];
    }

    s_FileExistsChecked[index] = true;
    s_FileExistsCheckeResult[index] = CheckFileExists(FILENAME_TABLE[index]);
    return  s_FileExistsCheckeResult[index];
}

void ClearFileCheck(FileExistsCheck index)
{
    if(index > EXISTS_MAX)
    {
        NN_LOG("Invalid File index!!\n");
        return;
    }

    s_FileExistsChecked[index] = false;
}

bool ExistsAPSetting()
{
    return ExistsFile(EXISTS_AP_SETTING);
}

void InitializeFileCheck()
{
    for(u32 i = 0; i < EXISTS_MAX; i++)
    {
        s_FileExistsChecked[i] = false;
    }
}


}