// ----------------------------------------------------------------------
// File: proc/user/Version.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 "mgm/proc/ProcInterface.hh"
#include "mgm/XrdMgmOfs.hh"
#include "mgm/Features.hh"
#include "mgm/Stat.hh"
#include "XrdVersion.hh"

XrdVERSIONINFOREF( XrdgetProtocol );

EOSMGMNAMESPACE_BEGIN

int
ProcCommand::Version()
{
  gOFS->MgmStats.Add("Version", pVid->uid, pVid->gid, 1);
  eos_info("version");
  XrdOucString option = pOpaque->Get("mgm.option");

  if (option.find("m") != STR_NPOS) {
    // Get XrdVersion information from existing installation
    std::string XrdVersion = XrdVERSIONINFOVAR(XrdgetProtocol).vStr;
    // Parse XrdVersion [ has format: component vNumber ]
    size_t pos = XrdVersion.find(" ");
    if (pos != std::string::npos) {
      XrdVersion = XrdVersion.substr(pos + 1);
    }

    stdOut += "eos.instance.name=";
    stdOut +=  gOFS->MgmOfsInstanceName;
    stdOut += " eos.instance.version=";
    stdOut += VERSION;
    stdOut += " eos.instance.release=";
    stdOut += RELEASE;
    stdOut += " xrootd.version=";
    stdOut += XrdVersion.c_str();
    stdOut += " ";

    for (auto it = Features::sMap.begin(); it != Features::sMap.end(); it++) {
      stdOut += it->first.c_str();
      stdOut += "=";
      stdOut += it->second.c_str();
      stdOut += " ";
    }
  } else {
    stdOut += "EOS_INSTANCE=";
    stdOut += gOFS->MgmOfsInstanceName;
    stdOut += "\nEOS_SERVER_VERSION=";
    stdOut += VERSION;
    stdOut += " EOS_SERVER_RELEASE=";
    stdOut += RELEASE;

    if (option.find("f") != STR_NPOS) {
      stdOut += "\nEOS_SERVER_FEATURES=";

      for (auto it = Features::sMap.begin(); it != Features::sMap.end(); it++) {
        stdOut += "\n";
        stdOut += it->first.c_str();
        stdOut += "  =>  ";
        stdOut += it->second.c_str();
      }
    }
  }

  return SFS_OK;
}

EOSMGMNAMESPACE_END