/*
 * Shell Registry Access
 *
 * Copyright 2000 Juergen Schmied
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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 for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "config.h"

#include <string.h>
#include <stdio.h>

#include "shellapi.h"
#include "shlobj.h"
#include "winerror.h"
#include "winreg.h"
#include "winnls.h"

#include "undocshell.h"
#include "wine/winbase16.h"
#include "shell32_main.h"

#include "wine/debug.h"

WINE_DEFAULT_DEBUG_CHANNEL(shell);

/*************************************************************************
 * SHRegOpenKeyA				[SHELL32.506]
 *
 */
HRESULT WINAPI SHRegOpenKeyA(
	HKEY hKey,
	LPSTR lpSubKey,
	PHKEY phkResult)
{
	TRACE("(0x%08x, %s, %p)\n", hKey, debugstr_a(lpSubKey), phkResult);
	return RegOpenKeyA(hKey, lpSubKey, phkResult);
}

/*************************************************************************
 * SHRegOpenKeyW				[SHELL32.507] NT 4.0
 *
 */
HRESULT WINAPI SHRegOpenKeyW (
	HKEY hkey,
	LPCWSTR lpszSubKey,
	PHKEY retkey)
{
	WARN("0x%04x %s %p\n",hkey,debugstr_w(lpszSubKey),retkey);
	return RegOpenKeyW( hkey, lpszSubKey, retkey );
}

/*************************************************************************
 * SHRegQueryValueExA   [SHELL32.509]
 *
 */
HRESULT WINAPI SHRegQueryValueExA(
	HKEY hkey,
	LPSTR lpValueName,
	LPDWORD lpReserved,
	LPDWORD lpType,
	LPBYTE lpData,
	LPDWORD lpcbData)
{
	TRACE("0x%04x %s %p %p %p %p\n", hkey, lpValueName, lpReserved, lpType, lpData, lpcbData);
	return RegQueryValueExA (hkey, lpValueName, lpReserved, lpType, lpData, lpcbData);
}

/*************************************************************************
 * SHRegQueryValueW				[SHELL32.510] NT4.0
 *
 */
HRESULT WINAPI SHRegQueryValueW(
	HKEY hkey,
	LPWSTR lpszSubKey,
	LPWSTR lpszData,
	LPDWORD lpcbData )
{
	WARN("0x%04x %s %p %p semi-stub\n",
		hkey, debugstr_w(lpszSubKey), lpszData, lpcbData);
	return RegQueryValueW( hkey, lpszSubKey, lpszData, lpcbData );
}

/*************************************************************************
 * SHRegQueryValueExW	[SHELL32.511] NT4.0
 *
 * FIXME
 *  if the datatype REG_EXPAND_SZ then expand the string and change
 *  *pdwType to REG_SZ.
 */
HRESULT WINAPI SHRegQueryValueExW (
	HKEY hkey,
	LPWSTR pszValue,
	LPDWORD pdwReserved,
	LPDWORD pdwType,
	LPVOID pvData,
	LPDWORD pcbData)
{
	DWORD ret;
	WARN("0x%04x %s %p %p %p %p semi-stub\n",
		hkey, debugstr_w(pszValue), pdwReserved, pdwType, pvData, pcbData);
	ret = RegQueryValueExW ( hkey, pszValue, pdwReserved, pdwType, pvData, pcbData);
	return ret;
}

/*************************************************************************
 * SHRegDeleteKeyA   [SHELL32.?]
 */
HRESULT WINAPI SHRegDeleteKeyA(
	HKEY hkey,
	LPCSTR pszSubKey)
{
	FIXME("hkey=0x%08x, %s\n", hkey, debugstr_a(pszSubKey));
	return 0;
}

/*************************************************************************
 * SHRegDeleteKeyW   [SHELL32.512]
 */
HRESULT WINAPI SHRegDeleteKeyW(
	HKEY hkey,
	LPCWSTR pszSubKey)
{
	FIXME("hkey=0x%08x, %s\n", hkey, debugstr_w(pszSubKey));
	return 0;
}

/*************************************************************************
 * SHRegCloseKey			[SHELL32.505] NT 4.0
 *
 */
HRESULT WINAPI SHRegCloseKey (HKEY hkey)
{
	TRACE("0x%04x\n",hkey);
	return RegCloseKey( hkey );
}


/* 16-bit functions */

/* 0 and 1 are valid rootkeys in win16 shell.dll and are used by
 * some programs. Do not remove those cases. -MM
 */
static inline void fix_win16_hkey( HKEY *hkey )
{
    if (*hkey == 0 || *hkey == (HKEY)1) *hkey = HKEY_CLASSES_ROOT;
}

/******************************************************************************
 *           RegOpenKey   [SHELL.1]
 */
DWORD WINAPI RegOpenKey16( HKEY hkey, LPCSTR name, PHKEY retkey )
{
    fix_win16_hkey( &hkey );
    return RegOpenKeyA( hkey, name, retkey );
}

/******************************************************************************
 *           RegCreateKey   [SHELL.2]
 */
DWORD WINAPI RegCreateKey16( HKEY hkey, LPCSTR name, PHKEY retkey )
{
    fix_win16_hkey( &hkey );
    return RegCreateKeyA( hkey, name, retkey );
}

/******************************************************************************
 *           RegCloseKey   [SHELL.3]
 */
DWORD WINAPI RegCloseKey16( HKEY hkey )
{
    fix_win16_hkey( &hkey );
    return RegCloseKey( hkey );
}

/******************************************************************************
 *           RegDeleteKey   [SHELL.4]
 */
DWORD WINAPI RegDeleteKey16( HKEY hkey, LPCSTR name )
{
    fix_win16_hkey( &hkey );
    return RegDeleteKeyA( hkey, name );
}

/******************************************************************************
 *           RegSetValue   [SHELL.5]
 */
DWORD WINAPI RegSetValue16( HKEY hkey, LPCSTR name, DWORD type, LPCSTR data, DWORD count )
{
    fix_win16_hkey( &hkey );
    return RegSetValueA( hkey, name, type, data, count );
}

/******************************************************************************
 *           RegQueryValue   [SHELL.6]
 *
 * NOTES
 *    Is this HACK still applicable?
 *
 * HACK
 *    The 16bit RegQueryValue doesn't handle selectorblocks anyway, so we just
 *    mask out the high 16 bit.  This (not so much incidently) hopefully fixes
 *    Aldus FH4)
 */
DWORD WINAPI RegQueryValue16( HKEY hkey, LPCSTR name, LPSTR data, LPDWORD count )
{
    fix_win16_hkey( &hkey );
    if (count) *count &= 0xffff;
    return RegQueryValueA( hkey, name, data, count );
}

/******************************************************************************
 *           RegEnumKey   [SHELL.7]
 */
DWORD WINAPI RegEnumKey16( HKEY hkey, DWORD index, LPSTR name, DWORD name_len )
{
    fix_win16_hkey( &hkey );
    return RegEnumKeyA( hkey, index, name, name_len );
}