/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

#define _WIN32_WINDOWS 0x0410
#ifdef _MSC_VER
#pragma warning(push, 1) /* disable warnings within system headers */
#endif
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <msiquery.h>
#ifdef _MSC_VER
#pragma warning(pop)
#endif

#include <malloc.h>

#ifdef UNICODE
#define _UNICODE
#define _tstring	wstring
#else
#define _tstring	string
#endif
#include <tchar.h>
#include <string>

#include <io.h>

static std::_tstring GetMsiProperty( MSIHANDLE handle, const std::_tstring& sProperty )
{
	std::_tstring	result;
	TCHAR	szDummy[1] = TEXT("");
	DWORD	nChars = 0;

	if ( MsiGetProperty( handle, sProperty.c_str(), szDummy, &nChars ) == ERROR_MORE_DATA )
	{
        DWORD nBytes = ++nChars * sizeof(TCHAR);
        LPTSTR buffer = reinterpret_cast<LPTSTR>(_alloca(nBytes));
        ZeroMemory( buffer, nBytes );
        MsiGetProperty(handle, sProperty.c_str(), buffer, &nChars);
        result = buffer;            
	}

	return	result;
}


static BOOL ExecuteCommand( LPCTSTR lpCommand, BOOL bSync )
{
	BOOL				fSuccess = FALSE;
	STARTUPINFO			si;
	PROCESS_INFORMATION	pi;

	ZeroMemory( &si, sizeof(si) );
	si.cb = sizeof(si);

	fSuccess = CreateProcess(
		NULL,
		(LPTSTR)lpCommand,
		NULL,
		NULL,
		FALSE,
		0,
		NULL,
		NULL,
		&si,
		&pi
		);

	if ( fSuccess )
	{
		if ( bSync )
			WaitForSingleObject( pi.hProcess, INFINITE );

		CloseHandle( pi.hProcess );
		CloseHandle( pi.hThread );
	}

	return fSuccess;
}

extern "C" UINT __stdcall ExecutePostUninstallScript( MSIHANDLE handle )
{
	TCHAR	szValue[8192];
	DWORD	nValueSize = sizeof(szValue);
	HKEY	hKey;
	std::_tstring	sInstDir;
	
	std::_tstring	sProductKey = GetMsiProperty( handle, TEXT("FINDPRODUCT") );

	// MessageBox( NULL, sProductKey.c_str(), "Titel", MB_OK );
	
	if ( ERROR_SUCCESS == RegOpenKey( HKEY_CURRENT_USER,  sProductKey.c_str(), &hKey ) )
	{
		if ( ERROR_SUCCESS == RegQueryValueEx( hKey, TEXT("INSTALLLOCATION"), NULL, NULL, (LPBYTE)szValue, &nValueSize ) )
		{
			sInstDir = szValue;
		}
		RegCloseKey( hKey );
	}
	else if ( ERROR_SUCCESS == RegOpenKey( HKEY_LOCAL_MACHINE,  sProductKey.c_str(), &hKey ) )
	{
		if ( ERROR_SUCCESS == RegQueryValueEx( hKey, TEXT("INSTALLLOCATION"), NULL, NULL, (LPBYTE)szValue, &nValueSize ) )
		{
			sInstDir = szValue;
		}
		RegCloseKey( hKey );
	}
	else
		return ERROR_SUCCESS;

	std::_tstring	sInfFile = sInstDir + TEXT("program\\postuninstall.inf");
	std::_tstring	sCommand = _T("RUNDLL32.EXE ");

	// MessageBox( NULL, sInfFile.c_str(), "Titel", MB_OK );
	
	if ( (LONG)GetVersion() < 0 )
		sCommand += _T("setupx.dll");
	else
		sCommand += _T("setupapi.dll");

	sCommand += _T(",InstallHinfSection PostUninstall 132 ");
	sCommand += sInfFile;

	if ( 0 == _taccess( sInfFile.c_str(), 2 ) )
		ExecuteCommand( sCommand.c_str(), TRUE );

	DeleteFile( sInfFile.c_str() );

	return ERROR_SUCCESS;
}