//  Copyright (c) 2008 Hartmut Kaiser
// 
//  Distributed under the Boost Software License, Version 1.0. (See accompanying 
//  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

#include <iostream>
#include <string>
#include "saga-sd.hpp"

#include <cstdlib>
#include <cstring>

///////////////////////////////////////////////////////////////////////////////

static int argc_;

void printUsage()
{
  std::cout << "Usage: saga-sd <command> <options>"				 << std::endl;
  std::cout << ""												 << std::endl; 
  std::cout << "  Commands:         Options:\n"					 << std::endl;
  std::cout << "  list_services     \"<svc-filter>\" \"<data-filter>\" \"<authz-filter>\""  << std::endl; 
  std::cout << ""												 << std::endl; 
  std::cout << "  Example:"                                      << std::endl; 
  std::cout << "    saga-sd list_services \"type = 'org.ogf.saga.service.job' \\"  << std::endl;
  std::cout << "      AND name = 'CERN-PROD-rb'\" \"RunningJobs > 10\""              << std::endl; 
  std::cout << ""                                                << std::endl;
  std::cout << "This is a SAGA-based tool for service discovery."<< std::endl;   
  std::cout << "For additional information, see http://saga.cct.lsu.edu."<< std::endl; 
}

void ExitIfArgcLessThan(int n)
{
  if (argc_ < n) {
    printUsage();
    exit(-1);
  }  
}

///////////////////////////////////////////////////////////////////////////////

int main (int argc, char* argv[])
{
#if !defined(SAGA_HAVE_PACKAGE_SD)
    std::cerr << "saga-sd: saga has been compiled without the sd "
                 "package, bailing out" << std::endl;
#else
  argc_ = argc;
  ExitIfArgcLessThan(2);

  if(!strcmp(argv[1], "list_services"))
  {
    ExitIfArgcLessThan(4);

    if ( argc == 4 )
    {
       list_services(std::string(argv[2]), std::string(argv[3]));
    }

    else if ( argc == 5 )
    {
       list_services(std::string(argv[2]),
                     std::string(argv[3]),
                     std::string(argv[4]));
    }
  }
  else
  {
    std::cout << "Unknown command: " << std::string(argv[1]) << std::endl;
    printUsage();
    exit(-1);
  }
#endif
  return 0;
}