/*

 *  Module "clock"      -- Displays date and time

 *

 *  Options:

 *  - clock_precision_onesec: boolean (default: 0)

 *    If true, the clock will be updated every second,

 *    if false, the clock is updated once per minute.

 *  - clock_strfmt: string (default: "%Y-%m-%d %H:%M")

 *    strftime format string.

 *

 * Copyright (C) 2010 Mikael Berthe <mikael@lilotux.net>

 *

 * This module 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 2 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 <time.h>

#include <mcabber/modules.h>

#include <mcabber/settings.h>

#include <mcabber/screen.h>

static void clock_init(void);

static void clock_uninit(void);

/* Module description */

module_info_t info_clock = {

        .branch         = MCABBER_BRANCH,

        .api            = MCABBER_API_VERSION,

        .version        = "1.00",

        .description    = "Simple clock module\n"

                          "Uses the 'info' option to display the time.",

        .requires       = NULL,

        .init           = clock_init,

        .uninit         = clock_uninit,

        .next           = NULL,

};

static guint srcno = 0;

static gboolean precision_onesec;

static gchar *backup_info;

static gchar *strfmt;

static const gchar dfltstrfmt[] = "%Y-%m-%d %H:%M"; // Default string format

static gboolean clock_cb(void)

{

  char buf[256];

  time_t now_t;

  struct tm *now;

  time(&now_t);

  now = localtime(&now_t);

  strftime(buf, sizeof(buf), strfmt, now);

  settings_set(SETTINGS_TYPE_OPTION, "info", buf);

  scr_update_chat_status(TRUE);

  if (precision_onesec)

    return TRUE;  // Let's be called again in 1 second

  // Set up new timeout event

  srcno = g_timeout_add_seconds((now->tm_sec < 60 ? 60 - now->tm_sec : 1),

                                (GSourceFunc)clock_cb, NULL);

  return FALSE;   // Destroy the old timeout

}

static void clock_setup_timer(gboolean activate)

{

  if ((activate && srcno) || (!activate && !srcno))

    return;

  if (activate) {

    srcno = g_timeout_add_seconds(1, (GSourceFunc)clock_cb, NULL);

  } else {

    g_source_remove(srcno);

    srcno = 0;

  }

}

//static void do_clock(char *args)

//{

//}

/* Initialization */

static void clock_init(void)

{

  backup_info = g_strdup(settings_opt_get("info"));

  precision_onesec = settings_opt_get_int("clock_precision_onesec");

  strfmt = g_strdup(settings_opt_get("clock_strfmt"));

  if (!strfmt)

    strfmt = g_strdup(dfltstrfmt);

  clock_setup_timer(TRUE);

}

/* Deinitialization */

static void clock_uninit(void)

{

  clock_setup_timer(FALSE);

  settings_set(SETTINGS_TYPE_OPTION, "info", backup_info);

  g_free(backup_info);

  g_free(strfmt);

  backup_info = strfmt = NULL; // probably useless...

  scr_update_chat_status(TRUE);

}

/* vim: set expandtab cindent cinoptions=>2\:2(0:  For Vim users... */