/*
 * Implementation of the Local Printmonitor User Interface
 *
 * Copyright 2007 Detlef Riekenberg
 *
 * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include <stdarg.h>

#define NONAMELESSUNION

#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winreg.h"
#include "winuser.h"

#include "winspool.h"
#include "ddk/winsplp.h"

#include "wine/debug.h"
#include "localui.h"

WINE_DEFAULT_DEBUG_CHANNEL(localui);

static HINSTANCE LOCALUI_hInstance;

static const WCHAR cmd_DeletePortW[] = {'D','e','l','e','t','e','P','o','r','t',0};
static const WCHAR XcvPortW[] = {',','X','c','v','P','o','r','t',' ',0};

/*****************************************************
 *   strdupWW [internal]
 */

static LPWSTR strdupWW(LPCWSTR pPrefix, LPCWSTR pSuffix)
{
    LPWSTR  ptr;
    DWORD   len;

    len = lstrlenW(pPrefix) + (pSuffix ? lstrlenW(pSuffix) : 0) + 1;
    ptr = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
    if (ptr) {
        lstrcpyW(ptr, pPrefix);
        if (pSuffix) lstrcatW(ptr, pSuffix);
    }
    return ptr;
}

/******************************************************************
 * display the Dialog "Nothing to configure"
 *
 */

static void dlg_nothingtoconfig(HWND hWnd)
{
    WCHAR res_PortW[IDS_LOCALPORT_MAXLEN];
    WCHAR res_nothingW[IDS_NOTHINGTOCONFIG_MAXLEN];

    res_PortW[0] = '\0';
    res_nothingW[0] = '\0';
    LoadStringW(LOCALUI_hInstance, IDS_LOCALPORT, res_PortW, IDS_LOCALPORT_MAXLEN);
    LoadStringW(LOCALUI_hInstance, IDS_NOTHINGTOCONFIG, res_nothingW, IDS_NOTHINGTOCONFIG_MAXLEN);

    MessageBoxW(hWnd, res_nothingW, res_PortW, MB_OK | MB_ICONINFORMATION);
}

/*****************************************************
 *   open_monitor_by_name [internal]
 *
 */
static BOOL open_monitor_by_name(LPCWSTR pPrefix, LPCWSTR pPort, HANDLE * phandle)
{
    PRINTER_DEFAULTSW pd;
    LPWSTR  fullname;
    BOOL    res;

    * phandle = 0;
    TRACE("(%s,%s)\n", debugstr_w(pPrefix),debugstr_w(pPort) );

    fullname = strdupWW(pPrefix, pPort);
    pd.pDatatype = NULL;
    pd.pDevMode  = NULL;
    pd.DesiredAccess = SERVER_ACCESS_ADMINISTER;

    res = OpenPrinterW(fullname, phandle, &pd);
    HeapFree(GetProcessHeap(), 0, fullname);
    return res;
}

/*****************************************************
 *   localui_AddPortUI [exported through MONITORUI]
 *
 * Display a Dialog to add a local Port
 *
 * PARAMS
 *  pName       [I] Servername or NULL (local Computer)
 *  hWnd        [I] Handle to parent Window for the Dialog-Box or NULL
 *  pMonitorName[I] Name of the Monitor, that should be used to add a Port or NULL
 *  ppPortName  [O] PTR to PTR of a buffer, that receive the Name of the new Port or NULL
 *
 * RETURNS
 *  Success: TRUE
 *  Failure: FALSE
 *
 */
static BOOL WINAPI localui_AddPortUI(PCWSTR pName, HWND hWnd, PCWSTR pMonitorName, PWSTR *ppPortName)
{
    FIXME("(%s, %p, %s, %p) stub\n", debugstr_w(pName), hWnd, debugstr_w(pMonitorName), ppPortName);
    return TRUE;
}


/*****************************************************
 *   localui_ConfigurePortUI [exported through MONITORUI]
 *
 * Display the Configuration-Dialog for a specific Port
 *
 * PARAMS
 *  pName     [I] Servername or NULL (local Computer)
 *  hWnd      [I] Handle to parent Window for the Dialog-Box or NULL
 *  pPortName [I] Name of the Port, that should be configured
 *
 * RETURNS
 *  Success: TRUE
 *  Failure: FALSE
 *
 */
static BOOL WINAPI localui_ConfigurePortUI(PCWSTR pName, HWND hWnd, PCWSTR pPortName)
{
    HANDLE  hXcv;

    TRACE("(%s, %p, %s)\n", debugstr_w(pName), hWnd, debugstr_w(pPortName));
    if (open_monitor_by_name(XcvPortW, pPortName, &hXcv)) {

        dlg_nothingtoconfig(hWnd);

        ClosePrinter(hXcv);
        return TRUE;
    }
    SetLastError(ERROR_UNKNOWN_PORT);
    return FALSE;

}

/*****************************************************
 *   localui_DeletePortUI [exported through MONITORUI]
 *
 * Delete a specific Port
 *
 * PARAMS
 *  pName     [I] Servername or NULL (local Computer)
 *  hWnd      [I] Handle to parent Window
 *  pPortName [I] Name of the Port, that should be deleted
 *
 * RETURNS
 *  Success: TRUE
 *  Failure: FALSE
 *
 * NOTES
 *  Native localui does not allow to delete a COM / LPT - Port (ERROR_NOT_SUPPORTED)
 *
 */
static BOOL WINAPI localui_DeletePortUI(PCWSTR pName, HWND hWnd, PCWSTR pPortName)
{
    HANDLE  hXcv;
    DWORD   dummy;
    DWORD   needed;
    DWORD   status;

    TRACE("(%s, %p, %s)\n", debugstr_w(pName), hWnd, debugstr_w(pPortName));

    if ((!pPortName) || (!pPortName[0])) {
        SetLastError(ERROR_INVALID_PARAMETER);
        return FALSE;
    }

    if (open_monitor_by_name(XcvPortW, pPortName, &hXcv)) {
        /* native localui tests here for LPT / COM - Ports and failed with
           ERROR_NOT_SUPPORTED. */
        if (XcvDataW(hXcv, cmd_DeletePortW, (LPBYTE) pPortName,
            (lstrlenW(pPortName)+1) * sizeof(WCHAR), (LPBYTE) &dummy, 0, &needed, &status)) {

            ClosePrinter(hXcv);
            if (status != ERROR_SUCCESS) SetLastError(status);
            return (status == ERROR_SUCCESS);
        }
        ClosePrinter(hXcv);
        return FALSE;
    }
    SetLastError(ERROR_UNKNOWN_PORT);
    return FALSE;
}

/*****************************************************
 *      InitializePrintMonitorUI  (LOCALUI.@)
 *
 * Initialize the User-Interface for the Local Ports
 *
 * RETURNS
 *  Success: Pointer to a MONITORUI Structure
 *  Failure: NULL
 *
 */

PMONITORUI WINAPI InitializePrintMonitorUI(void)
{
    static MONITORUI mymonitorui =
    {
        sizeof(MONITORUI),
        localui_AddPortUI,
        localui_ConfigurePortUI,
        localui_DeletePortUI
    };

    TRACE("=> %p\n", &mymonitorui);
    return &mymonitorui;
}

/*****************************************************
 *      DllMain
 */
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
    TRACE("(%p, %d, %p)\n",hinstDLL, fdwReason, lpvReserved);

    switch(fdwReason)
    {
        case DLL_WINE_PREATTACH:
            return FALSE;           /* prefer native version */

        case DLL_PROCESS_ATTACH:
            DisableThreadLibraryCalls( hinstDLL );
            LOCALUI_hInstance = hinstDLL;
            break;
    }
    return TRUE;
}