/* Copyright (C) 2019 The giomm Development Team
 *
 * 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/>.
 */

#include <gio/gio.h>

namespace
{
GType get_proxy_type_callback(GDBusObjectManagerClient* manager,
  const gchar* object_path, const gchar* interface_name, gpointer user_data)
{
  auto slot_proxy_type = static_cast<Gio::DBus::ObjectManagerClient::SlotProxyType*>(user_data);
  try
  {
    return (*slot_proxy_type)(Glib::wrap(manager, true),
           Glib::convert_const_gchar_ptr_to_ustring(object_path),
           Glib::convert_const_gchar_ptr_to_ustring(interface_name));
  }
  catch (...)
  {
    Glib::exception_handlers_invoke();
  }
  return 0;
}

} // anonymous namespace

namespace Gio
{

namespace DBus
{
using MapChangedProperties = ObjectManagerClient::MapChangedProperties;
using Flags = ObjectManagerClient::Flags;

ObjectManagerClient::ObjectManagerClient(const Glib::RefPtr<Connection>& connection,
  const Glib::ustring& name, const Glib::ustring& object_path,
  const SlotAsyncReady& slot_async_ready,
  const Glib::RefPtr<Cancellable>& cancellable,
  const SlotProxyType& slot_proxy_type, Flags flags)
: _CONSTRUCT("connection", Glib::unwrap(connection),
  "flags", static_cast<GDBusObjectManagerClientFlags>(flags),
  "name", Glib::c_str_or_nullptr(name),
  "object-path", Glib::c_str_or_nullptr(object_path),
  "get-proxy-type-func", slot_proxy_type ? get_proxy_type_callback : nullptr,
  "get-proxy-type-user-data",  slot_proxy_type ? new SlotProxyType(slot_proxy_type) : nullptr,
  "get-proxy-type-destroy-notify", slot_proxy_type ? Glib::destroy_notify_delete<SlotProxyType> : nullptr
)
{
  if (slot_async_ready)
  {
    // Asynchronous construction
    if (cancellable)
      init_async(slot_async_ready, cancellable);
    else
      init_async(slot_async_ready);
  }
  else
  {
    // Synchronous construction
    if (cancellable)
      init(cancellable);
    else
      init();
  }
}

ObjectManagerClient::ObjectManagerClient(BusType bus_type,
  const Glib::ustring& name, const Glib::ustring& object_path,
  const SlotAsyncReady& slot_async_ready,
  const Glib::RefPtr<Cancellable>& cancellable,
  const SlotProxyType& slot_proxy_type, Flags flags)
: _CONSTRUCT("bus-type", bus_type,
  "flags", static_cast<GDBusObjectManagerClientFlags>(flags),
  "name", Glib::c_str_or_nullptr(name),
  "object-path", Glib::c_str_or_nullptr(object_path),
  "get-proxy-type-func", slot_proxy_type ? get_proxy_type_callback : nullptr,
  "get-proxy-type-user-data",  slot_proxy_type ? new SlotProxyType(slot_proxy_type) : nullptr,
  "get-proxy-type-destroy-notify", slot_proxy_type ? Glib::destroy_notify_delete<SlotProxyType> : nullptr
)
{
  if (slot_async_ready)
  {
    // Asynchronous construction
    if (cancellable)
      init_async(slot_async_ready, cancellable);
    else
      init_async(slot_async_ready);
  }
  else
  {
    // Synchronous construction
    if (cancellable)
      init(cancellable);
    else
      init();
  }
}

void ObjectManagerClient::create(const Glib::RefPtr<Connection>& connection,
  const Glib::ustring& name, const Glib::ustring& object_path,
  const SlotAsyncReady& slot_async_ready,
  const Glib::RefPtr<Cancellable>& cancellable,
  const SlotProxyType& slot_proxy_type, Flags flags)
{
  // This does not return anything, because it is async - see create_finish().
  ObjectManagerClient(connection, name, object_path, slot_async_ready, cancellable, slot_proxy_type, flags);
}

Glib::RefPtr<Gio::DBus::ObjectManagerClient> ObjectManagerClient::create_sync(
  const Glib::RefPtr<Connection>& connection,
  const Glib::ustring& name, const Glib::ustring& object_path,
  const Glib::RefPtr<Cancellable>& cancellable,
  const SlotProxyType& slot_proxy_type, Flags flags)
{
  return Glib::make_refptr_for_instance<ObjectManagerClient>(
    new ObjectManagerClient(connection, name, object_path, {}, cancellable, slot_proxy_type, flags));
}

void ObjectManagerClient::create_for_bus(BusType bus_type,
  const Glib::ustring& name, const Glib::ustring& object_path,
  const SlotAsyncReady& slot_async_ready,
  const Glib::RefPtr<Cancellable>& cancellable,
  const SlotProxyType& slot_proxy_type, Flags flags)
{
  // This does not return anything, because it is async - see create_for_bus_finish().
  ObjectManagerClient(bus_type, name, object_path, slot_async_ready, cancellable, slot_proxy_type, flags);
}

Glib::RefPtr<Gio::DBus::ObjectManagerClient> ObjectManagerClient::create_for_bus_sync(
  BusType bus_type,
  const Glib::ustring& name, const Glib::ustring& object_path,
  const Glib::RefPtr<Cancellable>& cancellable,
  const SlotProxyType& slot_proxy_type, Flags flags)
{
  return Glib::make_refptr_for_instance<ObjectManagerClient>(
    new ObjectManagerClient(bus_type, name, object_path, {}, cancellable, slot_proxy_type, flags));
}

} // namespace DBus

} // namespace Gio