/*

 *  Module "info_msgcount"  -- Show number of unread buffers in status bar

 *

 *  This module relies on the "info" option to display the number of

 *  unread messages in the status bar...

 *

 * 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 <stdio.h>

#include <stdlib.h>

#include <mcabber/modules.h>

#include <mcabber/settings.h>

#include <mcabber/screen.h>

#include <mcabber/hooks.h>

static void info_msgcount_init(void);

static void info_msgcount_uninit(void);

/* Module description */

module_info_t info_info_msgcount = {

        .branch         = MCABBER_BRANCH,

        .api            = MCABBER_API_VERSION,

        .version        = "0.01",

        .description    = "Show unread message count in the status bar",

        .requires       = NULL,

        .init           = info_msgcount_init,

        .uninit         = info_msgcount_uninit,

        .next           = NULL,

};

// Hook handler id

static guint unread_list_hid;

static gchar *backup_info;

// Event handler for HOOK_UNREAD_LIST_CHANGE events

static guint unread_list_hh(const gchar *hookname, hk_arg_t *args,

                            gpointer userdata)

{

  static gchar buf[128];

  guint all_unread = 0;

  guint muc_unread = 0;

  guint muc_attention = 0;

  guint unread; // private message count

  // Note: We can add "attention" string later, but it isn't used

  // yet in mcabber...

  for ( ; args->name; args++) {

    if (!g_strcmp0(args->name, "unread")) {

      all_unread = atoi(args->value);

    } else if (!g_strcmp0(args->name, "muc_unread")) {

      muc_unread = atoi(args->value);

    } else if (!g_strcmp0(args->name, "muc_attention")) {

      muc_attention = atoi(args->value);

    }

  }

  // Let's not count the MUC unread buffers that don't have the attention

  // flag (that is, MUC buffer that have no highlighted messages).

  unread = all_unread - (muc_unread - muc_attention);

  // Update the status bar

  snprintf(buf, sizeof(buf), "(%d/%d) ", unread, all_unread);

  settings_set(SETTINGS_TYPE_OPTION, "info", buf);

  scr_update_chat_status(TRUE);

  return HOOK_HANDLER_RESULT_ALLOW_MORE_HANDLERS;

}

// Initialization

static void info_msgcount_init(void)

{

  // Backup info option, set default initial string

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

  settings_set(SETTINGS_TYPE_OPTION, "info", "(...)");

  scr_update_chat_status(TRUE);

  // Add hook handler for unread message data

  unread_list_hid = hk_add_handler(unread_list_hh, HOOK_UNREAD_LIST_CHANGE,

                                   G_PRIORITY_DEFAULT_IDLE, NULL);

}

// Uninitialization

static void info_msgcount_uninit(void)

{

  // Unregister handler

  hk_del_handler(HOOK_UNREAD_LIST_CHANGE, unread_list_hid);

  // Restore initial info option value

  settings_set(SETTINGS_TYPE_OPTION, "info", backup_info);

  g_free(backup_info);

  backup_info = NULL;

  scr_update_chat_status(TRUE);

}

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