/*

* Copyright © 2013 Lars Uebernickel

*

* 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 2.1 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/>.

*

* Authors: Lars Uebernickel <lars@uebernic.de>

*/

#include "config.h"

#include "gnotificationbackend.h"

#include "giomodule-priv.h"

#include "gdbusconnection.h"

#include "gapplication.h"

#include "gnotification-private.h"

#define G_TYPE_GTK_NOTIFICATION_BACKEND  (g_gtk_notification_backend_get_type ())

#define G_GTK_NOTIFICATION_BACKEND(o)    (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_GTK_NOTIFICATION_BACKEND, GGtkNotificationBackend))

typedef struct _GGtkNotificationBackend GGtkNotificationBackend;

typedef GNotificationBackendClass       GGtkNotificationBackendClass;

struct _GGtkNotificationBackend

{

  GNotificationBackend parent;

};

GType g_gtk_notification_backend_get_type (void);

G_DEFINE_TYPE_WITH_CODE (GGtkNotificationBackend, g_gtk_notification_backend, G_TYPE_NOTIFICATION_BACKEND,

  _g_io_modules_ensure_extension_points_registered ();

  g_io_extension_point_implement (G_NOTIFICATION_BACKEND_EXTENSION_POINT_NAME,

                                 g_define_type_id, "gtk", 100))

static gboolean

g_gtk_notification_backend_is_supported (void)

{

  GDBusConnection *session_bus;

  GVariant *reply;

  /* Find out if the notification server is running. This is a

   * synchronous call because gio extension points don't support async

   * backend verification. This is only run once and only contacts the

   * dbus daemon. */

  session_bus = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, NULL);

  if (session_bus == NULL)

    return FALSE;

  reply = g_dbus_connection_call_sync (session_bus, "org.freedesktop.DBus", "/org/freedesktop/DBus",

                                       "org.freedesktop.DBus",

                                       "GetNameOwner", g_variant_new ("(s)", "org.gtk.Notifications"),

                                       G_VARIANT_TYPE ("(s)"), G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL);

  g_object_unref (session_bus);

  if (reply)

    {

      g_variant_unref (reply);

      return TRUE;

    }

  else

    return FALSE;

}

static void

g_gtk_notification_backend_send_notification (GNotificationBackend *backend,

                                              const gchar          *id,

                                              GNotification        *notification)

{

  GVariant *params;

  params = g_variant_new ("(ss@a{sv})", g_application_get_application_id (backend->application),

                                        id,

                                        g_notification_serialize (notification));

  g_dbus_connection_call (backend->dbus_connection,

                          "org.gtk.Notifications", "/org/gtk/Notifications",

                          "org.gtk.Notifications", "AddNotification", params,

                          G_VARIANT_TYPE_UNIT,

                          G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);

}

static void

g_gtk_notification_backend_withdraw_notification (GNotificationBackend *backend,

                                                  const gchar          *id)

{

  GVariant *params;

  params = g_variant_new ("(ss)", g_application_get_application_id (backend->application), id);

  g_dbus_connection_call (backend->dbus_connection, "org.gtk.Notifications",

                          "/org/gtk/Notifications", "org.gtk.Notifications",

                          "RemoveNotification", params, G_VARIANT_TYPE_UNIT,

                          G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);

}

static void

g_gtk_notification_backend_init (GGtkNotificationBackend *backend)

{

}

static void

g_gtk_notification_backend_class_init (GGtkNotificationBackendClass *class)

{

  GNotificationBackendClass *backend_class = G_NOTIFICATION_BACKEND_CLASS (class);

  backend_class->is_supported = g_gtk_notification_backend_is_supported;

  backend_class->send_notification = g_gtk_notification_backend_send_notification;

  backend_class->withdraw_notification = g_gtk_notification_backend_withdraw_notification;

}