/*

 *  Module "show_mdr"       -- Show Message Delivery Receipts

 *

 *  This module displays the message "delivery receipts" (XEP 184)

 *  received from contacts to the log window.

 *

 * Copyright (C) 2013,2014 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/logprint.h>

#include <mcabber/hooks.h>

#include <mcabber/roster.h>

#include <mcabber/utils.h>

static void show_mdr_init(void);

static void show_mdr_uninit(void);

/* Module description */

module_info_t info_show_mdr = {

  /*

        .branch         = MCABBER_BRANCH,

        .api            = MCABBER_API_VERSION,

  */

        .branch         = "dev",

        .api            = 38,     // HOOK_MDR_RECEIVED was included in dev-33

        .version        = "0.01",

        .description    = "Show delivery receipts in the log window.",

        .requires       = NULL,

        .init           = show_mdr_init,

        .uninit         = show_mdr_uninit,

        .next           = NULL,

};

// Hook handler id

static guint mdr_hid;

static int number_of_resources(const char *fjid)

{

  GSList *sl_user;

  gpointer bud;

  GSList *resources, *p_res;

  char *bjid;

  int n = 0;

  if (!fjid) return -1;

  bjid = jidtodisp(fjid);

  sl_user = roster_find(bjid, jidsearch, ROSTER_TYPE_USER);

  g_free(bjid);

  if (!sl_user) return -1;

  bud = sl_user->data;

  resources = buddy_getresources(bud);

    n++;

  return n;

}

// Event handler for delivery receipts events

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

                    gpointer userdata)

{

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

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

      int nres;

      // Note: we could use a whitelist...

      scr_log_print(LPRINT_DEBUG, "Received MDR from %s", args->value);

      /* What we do: we check the number N of resources from the contact and

         display the MDR sender only if N > 1

       */

      nres = number_of_resources(args->value);

      if (nres > 1)

        scr_log_print(LPRINT_NORMAL, "Received MDR from %s", args->value);

    }

  }

  return HOOK_HANDLER_RESULT_ALLOW_MORE_HANDLERS;

}

// Initialization

static void show_mdr_init(void)

{

  // Add hook handler for delivery receipts

  mdr_hid = hk_add_handler(mdr_hh, HOOK_MDR_RECEIVED,

                           G_PRIORITY_DEFAULT_IDLE, NULL);

}

// Uninitialization

static void show_mdr_uninit(void)

{

  // Unregister handler

  hk_del_handler(HOOK_MDR_RECEIVED, mdr_hid);

}

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