/*

* 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: 

*

*/

#pragma warning (disable: 4786)

#include <iostream>

#include <sstream>

#include "uninstaller.h"

#include "errors.h"

Uninstaller::Uninstaller( SisRegistry& aReg, const CParameterList& aParamList )

:  iRegistry(aReg), iParamList(aParamList)

{

}

void Uninstaller::Uninstall()

{

	const CParameterList::OptionList& uids = iParamList.PkgUidsToRemove();

	// Get the package UID

	for (CParameterList::OptionList::const_iterator curr = uids.begin(); curr != uids.end(); ++curr)

	{

		TUint32 uid;

	    bool convertedOk = false;

		std::wstring temp= *curr;

		std::wistringstream stringStream( temp );

		// Check for hex prefix

		if ( (temp.substr( 0, 2 ) == (L"0x") || temp.substr( 0, 2 ) == (L"0X")) && 

				curr->length() > 2 )

		{

			// The UID is in Hex, skip "0x" prefix

			stringStream.ignore( 2 );

			stringStream >> std::hex >> uid;

			convertedOk = ( !stringStream.fail() );

		}

		else

		{

			// The UID is in Decimal

			stringStream >> uid;

			convertedOk = ( !stringStream.fail() );

		}

		if (convertedOk)

		{

			RemovePkg(uid);

		}

		else

		{

			std::wostringstream os;

			os << L" Invalid Package UID " << std::hex << uid;

			std::wstring msg = os.str();

			throw InterpretSisError( msg, CMDLINE_ERROR );

		}

	}

	// Regenerate SIS stub registries

	iRegistry.GenerateStubRegistry();

}

void Uninstaller::RemovePkg(const TUint32 aUid)

{

	if (iRegistry.IsInstalled(aUid))

	{

		LINFO(L"Removing UID 0x" << std::hex << aUid);

		iRegistry.RemovePkg(aUid);

	}

	else

	{

		// No SisRegistry file found!!

		std::wostringstream os;

		os << L" SIS Registry entry for 0x" << std::hex << aUid << L" Not found";

		std::wstring msg = os.str();

		throw InterpretSisError( msg, PACKAGE_NOT_FOUND );

	}

}