/* $Id: SUPLoggerCtl.cpp $ */
/** @file
 * SUPLoggerCtl - Support Driver Logger Control.
 */

/*
 * Copyright (C) 2009-2023 Oracle and/or its affiliates.
 *
 * This file is part of VirtualBox base platform packages, as
 * available from https://www.virtualbox.org.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation, in version 3 of the
 * License.
 *
 * This program 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <https://www.gnu.org/licenses>.
 *
 * The contents of this file may alternatively be used under the terms
 * of the Common Development and Distribution License Version 1.0
 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
 * in the VirtualBox distribution, in which case the provisions of the
 * CDDL are applicable instead of those of the GPL.
 *
 * You may elect to license modified versions of this file under the
 * terms and conditions of either the GPL or the CDDL or both.
 *
 * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
 */


/*********************************************************************************************************************************
*   Header Files                                                                                                                 *
*********************************************************************************************************************************/
#include <VBox/sup.h>
#include <iprt/buildconfig.h>
#include <iprt/initterm.h>
#include <iprt/getopt.h>
#include <iprt/stream.h>
#include <iprt/string.h>
#include <iprt/ctype.h>
#include <iprt/errcore.h>


/**
 * Prints the usage.
 * @returns 1.
 */
static int usage(void)
{
    RTPrintf("usage: SUPLoggerCtl [-f|--flags <flags-settings>] \\\n"
             "                    [-g|--groups <groups-settings>] \\\n"
             "                    [-d|--dest <destination-specifiers>] \\\n"
             "                    [-l|--which <release|debug>] \\\n"
             "                    [-o|--what <set|create|destroy>]\n"
             "   or: SUPLoggerCtl <-h|--help>\n"
             "\n"
             );
    return 1;
}


int main(int argc, char **argv)
{
    RTR3InitExe(argc, &argv, RTR3INIT_FLAGS_TRY_SUPLIB);

    /*
     * Options are mandatory.
     */
    if (argc <= 1)
        return usage();

    /*
     * Parse the options.
     */
    static const RTGETOPTDEF s_aOptions[] =
    {
        { "--flags",    'f', RTGETOPT_REQ_STRING },
        { "--groups",   'g', RTGETOPT_REQ_STRING },
        { "--dest",     'd', RTGETOPT_REQ_STRING },
        { "--what",     'o', RTGETOPT_REQ_STRING },
        { "--which",    'l', RTGETOPT_REQ_STRING },
    };

    const char *pszFlags  = "";
    const char *pszGroups = "";
    const char *pszDest   = "";
    SUPLOGGER   enmWhich  = SUPLOGGER_DEBUG;
    enum
    {
        kSupLoggerCtl_Set, kSupLoggerCtl_Create, kSupLoggerCtl_Destroy
    }           enmWhat   = kSupLoggerCtl_Set;

    int ch;
    RTGETOPTUNION Val;
    RTGETOPTSTATE GetState;
    RTGetOptInit(&GetState, argc, argv, s_aOptions, RT_ELEMENTS(s_aOptions), 1, 0);
    while ((ch = RTGetOpt(&GetState, &Val)))
    {
        switch (ch)
        {
            case 'f':
                pszFlags = Val.psz;
                break;

            case 'g':
                pszGroups = Val.psz;
                break;

            case 'd':
                pszDest = Val.psz;
                break;

            case 'o':
                if (!strcmp(Val.psz, "set"))
                    enmWhat = kSupLoggerCtl_Set;
                else if (!strcmp(Val.psz, "create"))
                    enmWhat = kSupLoggerCtl_Create;
                else if (!strcmp(Val.psz, "destroy"))
                    enmWhat = kSupLoggerCtl_Destroy;
                else
                {
                    RTStrmPrintf(g_pStdErr, "SUPLoggerCtl: error: Unknown operation '%s'.\n", Val.psz);
                    return 1;
                }
                break;

            case 'l':
                if (!strcmp(Val.psz, "debug"))
                    enmWhich = SUPLOGGER_DEBUG;
                else if (!strcmp(Val.psz, "release"))
                    enmWhich = SUPLOGGER_RELEASE;
                else
                {
                    RTStrmPrintf(g_pStdErr, "SUPLoggerCtl: error: Unknown logger '%s'.\n", Val.psz);
                    return 1;
                }
                break;

            case 'h':
                return usage();

            case 'V':
                RTPrintf("%sr%s\n", RTBldCfgVersion(), RTBldCfgRevisionStr());
                return 0;

            case VINF_GETOPT_NOT_OPTION:
                RTStrmPrintf(g_pStdErr, "SUPLoggerCtl: error: Unexpected argument '%s'.\n", Val.psz);
                return 1;

            default:
                return RTGetOptPrintError(ch, &Val);
        }
    }

    /*
     * Make sure the support library is initialized.
     */
    int rc = SUPR3Init(NULL /*ppSession*/);
    if (RT_SUCCESS(rc))
    {
        /*
         * Do the requested job.
         */
        switch (enmWhat)
        {
            case kSupLoggerCtl_Set:
                rc = SUPR3LoggerSettings(enmWhich, pszFlags, pszGroups, pszDest);
                break;
            case kSupLoggerCtl_Create:
                rc = SUPR3LoggerCreate(enmWhich, pszFlags, pszGroups, pszDest);
                break;
            case kSupLoggerCtl_Destroy:
                rc = SUPR3LoggerDestroy(enmWhich);
                break;
            default:
                rc = VERR_INTERNAL_ERROR;
                break;
        }
        if (RT_SUCCESS(rc))
            RTPrintf("SUPLoggerCtl: Success\n");
        else
            RTStrmPrintf(g_pStdErr, "SUPLoggerCtl: error: rc=%Rrc\n", rc);
    }
    else
        RTStrmPrintf(g_pStdErr, "SUPR3Init: error: rc=%Rrc\n", rc);

    return RT_SUCCESS(rc) ? 0 : 1;
}