/*

* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

#include "adornedutilities.h"

#include <algorithm>

#include <sys/types.h>

#include <sys/stat.h>

#include "stringutils.h"

#include "symbiantypes.h"

#include "logger.h"

#include "is_utils.h"

const std::wstring KAdornedWildCharString = L"{????????}";

const int KFileNameUnadornedPartLength = 10;

void GetUnadornedFileName(const std::wstring& aAdornedFilename, std::wstring& aUnadornedFilename)

{

	aUnadornedFilename = aAdornedFilename;

	int length = aAdornedFilename.length();

	// check to see if the name is adorned. If so, remove the version number

	int startVersion = aAdornedFilename.find('{');

	if (startVersion != 0)

	{

		int endVersion = aAdornedFilename.find('}');

		if ((endVersion != 0) && (endVersion - startVersion == (KFileNameUnadornedPartLength - 1)))

		{

			// get unadorned version of the file

			aUnadornedFilename = aAdornedFilename.substr(0,startVersion);

			// for names ending with } i.e: DummyFile{12345678} nothing is to be appended to 

			// aUnadornedFilename in such a case aAdornedFilename.Mid(endVersion+1) would cause a crash

			if (endVersion < (length - 1))

			{

				aUnadornedFilename.append(aAdornedFilename.substr(endVersion + 1,length));

			}

		}

	}

}

bool IsAdornedVariationOf(const std::wstring& aFileName1, const std::wstring& aFileName2)

{

	std::wstring unadornedFileName1;

	GetUnadornedFileName(aFileName1,unadornedFileName1);

	std::wstring unadornedFileName2;

	GetUnadornedFileName(aFileName2,unadornedFileName2);

  	// Check whether filename2 is a variant of filename1

  	// e.g: d:\sys\bin\DummyDll{000A0001}.dll is considered a variant of c:\sys\bin\DummyDll.dll 

  	// because they both break down to \sys\bin\DummyDll.dll

	std::wstring fileName1Path(StringUtils::Path(unadornedFileName1));

	std::wstring fileName1NameAndExt(StringUtils::NameAndExt(unadornedFileName1));

	std::wstring fileName2Path(StringUtils::Path(unadornedFileName2));

	std::wstring fileName2NameAndExt(StringUtils::NameAndExt(unadornedFileName2));

	return ((fileName1Path == fileName2Path) && (fileName1NameAndExt == fileName2NameAndExt));

}

void FindAllAdornedVariants(const std::wstring& aSearchNameWild, const std::wstring& aSearchPath, std::list<std::wstring>& aAdornedFileNamesFound, const DrivesMap& aDriveMap)

{

	DrivesMap::const_iterator it = aDriveMap.begin();

	DrivesMap::const_iterator end = aDriveMap.end();

	for ( ; it != end ; ++it)

	{

		// drive to search on

		int disk = tolower(it->first);

		std::wstring drive = L"$:";

		drive[0] = disk;

		std::wstring searchPath(aSearchPath);

		// actual readable directory

		std::wstring localDir = it->second->iDir;

		// using ROM/ROFS logs for the z drive, searching for adorned variants is handled later.

		if (disk == 'z' && localDir.empty())

			continue;

		// convert to the local path and see if the file exists on the drive

		ConvertToLocalPath( searchPath, localDir );

		// search this directory 

		std::list<std::wstring> dirContents;

		GetDirContents(searchPath, dirContents);

		std::list<std::wstring>::iterator curr = dirContents.begin();

		std::list<std::wstring>::iterator end = dirContents.end();

		while (curr != end)

		{

			std::wstring dirFile(*curr);

			if (StringUtils::WildcardCompare(aSearchNameWild,dirFile))

			{

				// found an adorned file, add to the list of adorned names found

				std::wstringstream foundFile;

				foundFile << drive << aSearchPath << dirFile;

				aAdornedFileNamesFound.push_back(foundFile.str());

			}

			++curr;

		}

	}

}

void GenerateSearchNameWild(const std::wstring& aFileName, std::wstring& aSearchNameWild)

{

	std::wstring unadornedFileName;

	GetUnadornedFileName(aFileName, unadornedFileName);

	aSearchNameWild = StringUtils::Name(unadornedFileName);

	aSearchNameWild.append(KAdornedWildCharString);

	aSearchNameWild.append(StringUtils::Ext(unadornedFileName));

}