/* Copyright (C) 1995, 1998, 2000 Aladdin Enterprises.  All rights reserved.
  
  This software is provided AS-IS with no warranty, either express or
  implied.
  
  This software is distributed under license and may not be copied,
  modified or distributed except as expressly authorized under the terms
  of the license contained in the file LICENSE in this distribution.
  
  For more information about licensing, please refer to
  http://www.ghostscript.com/licensing/. For information on
  commercial licensing, go to http://www.artifex.com/licensing/ or
  contact Artifex Software, Inc., 101 Lucas Valley Road #110,
  San Rafael, CA  94903, U.S.A., +1(415)492-9861.
*/

/* $Id: zdevcal.c,v 1.5 2002/02/21 22:24:54 giles Exp $ */
/* %Calendar% IODevice */
#include "time_.h"
#include "ghost.h"
#include "gxiodev.h"
#include "istack.h"
#include "iparam.h"

/* ------ %Calendar% ------ */

private iodev_proc_get_params(calendar_get_params);
const gx_io_device gs_iodev_calendar = {
    "%Calendar%", "Special",
    { iodev_no_init, iodev_no_open_device, iodev_no_open_file,
      iodev_no_fopen, iodev_no_fclose,
      iodev_no_delete_file, iodev_no_rename_file, iodev_no_file_status,
      iodev_no_enumerate_files, NULL, NULL,
      calendar_get_params, iodev_no_put_params
    }
};

/* Get the date and time. */
private int
calendar_get_params(gx_io_device * iodev, gs_param_list * plist)
{
    int code;
    time_t t;
    struct tm *pltime;
    struct tm ltime;
    static const gs_param_item_t items[] = {
	{"Year", gs_param_type_int, offset_of(struct tm, tm_year)},
	{"Month", gs_param_type_int, offset_of(struct tm, tm_mon)},
	{"Day", gs_param_type_int, offset_of(struct tm, tm_mday)},
	{"Weekday", gs_param_type_int, offset_of(struct tm, tm_wday)},
	{"Hour", gs_param_type_int, offset_of(struct tm, tm_hour)},
	{"Minute", gs_param_type_int, offset_of(struct tm, tm_min)},
	{"Second", gs_param_type_int, offset_of(struct tm, tm_sec)},
	gs_param_item_end
    };
    bool running;

    if (time(&t) == (time_t)-1 || (pltime = localtime(&t)) == 0) {
	ltime.tm_sec = ltime.tm_min = ltime.tm_hour =
	    ltime.tm_mday = ltime.tm_mon = ltime.tm_year = 0;
	running = false;
    } else {
	ltime = *pltime;
	ltime.tm_year += 1900;
	ltime.tm_mon++;		/* 1-origin */
	running = true;
    }
    if ((code = gs_param_write_items(plist, &ltime, NULL, items)) < 0)
	return code;
    return param_write_bool(plist, "Running", &running);
}