// ----------------------------------------------------------------------
// File: com_who.cc
// Author: Andreas-Joachim Peters - CERN
// ----------------------------------------------------------------------

/************************************************************************
 * EOS - the CERN Disk Storage System                                   *
 * Copyright (C) 2011 CERN/Switzerland                                  *
 *                                                                      *
 * 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, either version 3 of the License, or    *
 * (at your option) any later version.                                  *
 *                                                                      *
 * 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 <http://www.gnu.org/licenses/>.*
 ************************************************************************/

/*----------------------------------------------------------------------------*/
#include "console/ConsoleMain.hh"
#include "common/StringTokenizer.hh"
/*----------------------------------------------------------------------------*/

/* Who is connected -  Interface */
int
com_who(char* arg1)
{
  eos::common::StringTokenizer subtokenizer(arg1);
  subtokenizer.GetLine();
  XrdOucString option = "";
  XrdOucString options = "";
  XrdOucString in = "";

  if (wants_help(arg1)) {
    goto com_who_usage;
  }

  in = "mgm.cmd=who";

  do {
    option = subtokenizer.GetToken();

    if (!option.length()) {
      break;
    }

    if (option == "-c") {
      options += "c";
    } else {
      if (option == "-n") {
        options += "n";
      } else {
        if (option == "-a") {
          options += "a";
        } else {
          if (option == "-z") {
            options += "z";
          } else {
            if (option == "-m") {
              options += "m";
            } else {
              if (option == "-s") {
                options += "s";
              } else {
                goto com_who_usage;
              }
            }
          }
        }
      }
    }
  } while (1);

  if (options.length()) {
    in += "&mgm.option=";
    in += options;
  }

  global_retc = output_result(client_command(in));
  return (0);
com_who_usage:
  fprintf(stdout,
          "usage: who [-c] [-n] [-z] [-a] [-m] [-s]                             :  print statistics about active users (idle<5min)\n");
  fprintf(stdout,
          "                -c                                                   -  break down by client host\n");
  fprintf(stdout,
          "                -n                                                   -  print id's instead of names\n");
  fprintf(stdout,
          "                -z                                                   -  print auth protocols\n");
  fprintf(stdout,
          "                -a                                                   -  print all\n");
  fprintf(stdout,
          "                -s                                                   -  print summary for clients\n");
  fprintf(stdout,
          "                -m                                                   -  print in monitoring format <key>=<value>\n");
  global_retc = EINVAL;
  return (0);
}