/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */

/*

 * Copyright © 2011 – 2017 Red Hat, Inc.

 *

 * 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 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/>.

 */

#include "config.h"

#include <glib-unix.h>

#include <locale.h>

#include <signal.h>

#include <gio/gio.h>

#include <libintl.h>

#include "goadaemon.h"

/* ---------------------------------------------------------------------------------------------------- */

static GMainLoop *loop = NULL;

static gboolean opt_replace = FALSE;

static gboolean opt_no_sigint = FALSE;

static GOptionEntry opt_entries[] =

{

  {"replace", 0, 0, G_OPTION_ARG_NONE, &opt_replace, "Replace existing daemon", NULL},

  {"no-sigint", 0, 0, G_OPTION_ARG_NONE, &opt_no_sigint, "Do not handle SIGINT for controlled shutdown", NULL},

  {NULL }

};

static GoaDaemon *the_daemon = NULL;

static void

on_bus_acquired (GDBusConnection *connection,

                 const gchar     *name,

                 gpointer         user_data)

{

  g_return_if_fail (G_IS_DBUS_CONNECTION (connection));

  g_return_if_fail (name != NULL && name[0] != '\0');

  the_daemon = goa_daemon_new (connection);

  g_debug ("Connected to the session bus");

}

static void

on_name_lost (GDBusConnection *connection,

              const gchar     *name,

              gpointer         user_data)

{

  g_return_if_fail (connection == NULL || G_IS_DBUS_CONNECTION (connection));

  g_return_if_fail (name != NULL && name[0] != '\0');

  g_info ("Lost (or failed to acquire) the name %s on the session message bus", name);

  g_main_loop_quit (loop);

}

static void

on_name_acquired (GDBusConnection *connection,

                  const gchar     *name,

                  gpointer         user_data)

{

  g_return_if_fail (G_IS_DBUS_CONNECTION (connection));

  g_return_if_fail (name != NULL && name[0] != '\0');

  g_debug ("Acquired the name %s on the session message bus", name);

}

static gboolean

on_sigint (gpointer user_data)

{

  g_info ("Caught SIGINT. Initiating shutdown.");

  g_main_loop_quit (loop);

  return FALSE;

}

int

main (int    argc,

      char **argv)

{

  GError *error;

  GOptionContext *opt_context = NULL;

  gint ret = 1;

  guint name_owner_id = 0;

  setlocale (LC_ALL, "");

  bindtextdomain (GETTEXT_PACKAGE, PACKAGE_LOCALE_DIR);

  bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");

  textdomain (GETTEXT_PACKAGE);

  opt_context = g_option_context_new ("GNOME Online Accounts daemon");

  g_option_context_add_main_entries (opt_context, opt_entries, NULL);

  error = NULL;

  if (!g_option_context_parse (opt_context, &argc, &argv, &error))

    {

      g_critical ("Error parsing options: %s", error->message);

      g_error_free (error);

      goto out;

    }

  g_message ("goa-daemon version %s starting", PACKAGE_VERSION);

  loop = g_main_loop_new (NULL, FALSE);

  if (!opt_no_sigint)

    {

      g_unix_signal_add (SIGINT, on_sigint, NULL);

    }

  name_owner_id = g_bus_own_name (G_BUS_TYPE_SESSION,

                                  "org.gnome.OnlineAccounts",

                                  G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT |

                                    (opt_replace ? G_BUS_NAME_OWNER_FLAGS_REPLACE : 0),

                                  on_bus_acquired,

                                  on_name_acquired,

                                  on_name_lost,

                                  NULL,

                                  NULL);

  g_debug ("Entering main event loop");

  g_main_loop_run (loop);

  ret = 0;

 out:

  g_clear_object (&the_daemon);

  if (name_owner_id != 0)

    g_bus_unown_name (name_owner_id);

  g_clear_pointer (&loop, (GDestroyNotify) g_main_loop_unref);

  g_clear_pointer (&opt_context, (GDestroyNotify) g_option_context_free);

  g_message ("goa-daemon version %s exiting", PACKAGE_VERSION);

  return ret;

}