/* Copyright © 2005-2013  Roger Leigh <rleigh@debian.org>
 *
 * schroot 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.
 *
 * schroot 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 <config.h>

#include <sbuild/i18n.h>
#include <sbuild/log.h>
#include <sbuild/types.h>
#include <sbuild/feature.h>

#include <bin-common/main.h>

#include <cstdlib>
#include <ctime>
#include <iostream>

#include <syslog.h>

#include <boost/format.hpp>

using std::endl;
using boost::format;
using sbuild::_;

namespace bin_common
{

  main::main (const std::string&  program_name,
              const std::string&  program_usage,
              const options::ptr& program_options,
              bool                use_syslog):
    program_name(program_name),
    program_usage(program_usage),
    program_options(program_options),
    use_syslog(use_syslog)
  {
  }

  main::~main ()
  {
  }

  void
  main::action_version (std::ostream& stream)
  {
    // TRANSLATORS: %1% = program name
    // TRANSLATORS: %2% = program version
    // TRANSLATORS: %3% = release date
    format fmtr(_("%1% (Debian sbuild) %2% (%3%)"));
    fmtr % this->program_name % VERSION % sbuild::gmdate(RELEASE_DATE);

    // TRANSLATORS: %1% = copyright year (start)
    // TRANSLATORS: %2% = copyright year (end)
    format fmtc(_("Copyright © %1%–%2% Roger Leigh"));
    fmtc % "2004" % "2012";

    stream << fmtr << '\n'
           << _("Written by Roger Leigh") << '\n' << '\n'
           << fmtc << '\n'
           << _("This is free software; see the source for copying conditions.  There is NO\n"
                "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n")
           << '\n'
           << _("Configured features:") << '\n';
    sbuild::feature::print_features(stream);
    stream << std::flush;
  }

  void
  main::action_help (std::ostream& stream)
  {
    stream
      << _("Usage:") << '\n'
      << "  " << this->program_name << "  "
      << this->program_usage << std::endl;

    stream << this->program_options->get_visible_options() << std::flush;
  }

  int
  main::run (int   argc,
             char *argv[])
  {
    try
      {
        this->program_options->parse(argc, argv);

#ifdef SBUILD_DEBUG
        sbuild::debug_log_level = sbuild::DEBUG_CRITICAL;
#endif

        if (this->use_syslog)
          openlog(this->program_name.c_str(), LOG_PID|LOG_NDELAY, LOG_AUTHPRIV);

        int status = run_impl();

        closelog();

        return status;
      }
    catch (const std::exception& e)
      {
        sbuild::log_exception_error(e);

        try
          {
            dynamic_cast<bin_common::options::error const&>(e);
            sbuild::log_info()
              // TRANSLATORS: %1% = program name
              << format(_("Run “%1% --help” to list usage example and all available options"))
              % argv[0]
              << endl;
          }
        catch (const std::bad_cast& discard)
          {
          }

        if (this->use_syslog)
          closelog();

        return EXIT_FAILURE;
      }
  }

}