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/* EINA - EFL data type library
 * Copyright (C) 2008 Cedric Bail
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library;
 * if not, see <http://www.gnu.org/licenses/>.
 */

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <stdio.h>
#include <string.h>

#include "eina_config.h"
#include "eina_types.h"
#include "eina_hamster.h"

/*============================================================================*
*                                  Local                                     *
*============================================================================*/

/**
 * @cond LOCAL
 */

const char *_eina_hamster_time = __TIME__;
const char *_eina_hamster_date = __DATE__;
static int _eina_hamsters = -1;

/**
 * @endcond
 */

/*============================================================================*
*                                 Global                                     *
*============================================================================*/

/*============================================================================*
*                                   API                                      *
*============================================================================*/

EAPI int
eina_hamster_count(void)
{
   if (_eina_hamsters < 0)
     {
        int hrs = 0, min = 0, sec = 0;
        char mon[8] = "";
        int monnum = 0, day = 0, year = 0;
        int fields;

        fields = sscanf(_eina_hamster_time, "%02d:%02d:%02d", &hrs, &min, &sec);
        if (fields == 3)
          {
             _eina_hamsters = (hrs * 60) + min;
             fields = sscanf(_eina_hamster_date, "%s %d %d", mon, &day, &year);
             if (fields == 3)
               {
                  int i;
                  const char *mons[] =
                  {
                     "Jan",
                     "Feb",
                     "Mar",
                     "Apr",
                     "May",
                     "Jun",
                     "Jul",
                     "Aug",
                     "Sep",
                     "Oct",
                     "Nov",
                     "Dec"
                  };

                  for (i = 0; i < 12; i++)
                    {
                       if (!strcmp(mon, mons[i]))
                         {
                            monnum = i + 1;
                            break;
                         }
                    }
                  // alloc 60 for mins, 24 for hrs
                  // alloc 1-31 (32) for days, 1-12 (13) for months
                  // use year as-is, for 31 bits (signed) this gives us up to
                  // 3584 years, which is good enough imho. - 1500 years from
                  // now or so. :)
                  _eina_hamsters +=
                     (day + (monnum * 32) + (13 * 32 * year)) * (24 * 60);
               }
          }
     }

   // format: [rest - year][0-12 - month][0-31 - day][0-23 - hrs][0-59 - sec]
   return _eina_hamsters;
}

/**
 * @}
 */