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/*
 * Copyright (c) 2013 Remko Tronçon
 * Licensed under the GNU General Public License v3.
 * See Documentation/Licenses/GPLv3.txt for more information.
 */

#pragma once

#include <Swiften/Base/boost_bsignals.h>
#include <Swiften/Queries/Request.h>
#include <Swiften/Elements/ContainerPayload.h>
#include <Swiften/PubSub/PubSubUtil.h>
#include <Swiften/Elements/PubSub.h>
#include <Swiften/Elements/PubSubOwnerPubSub.h>
#include <Swiften/Elements/PubSubCreate.h>
#include <Swiften/Elements/PubSubSubscribe.h>
#include <Swiften/Elements/PubSubAffiliations.h>
#include <Swiften/Elements/PubSubDefault.h>
#include <Swiften/Elements/PubSubItems.h>
#include <Swiften/Elements/PubSubPublish.h>
#include <Swiften/Elements/PubSubRetract.h>
#include <Swiften/Elements/PubSubSubscription.h>
#include <Swiften/Elements/PubSubSubscriptions.h>
#include <Swiften/Elements/PubSubUnsubscribe.h>
#include <Swiften/Elements/PubSubOwnerAffiliations.h>
#include <Swiften/Elements/PubSubOwnerConfigure.h>
#include <Swiften/Elements/PubSubOwnerDefault.h>
#include <Swiften/Elements/PubSubOwnerDelete.h>
#include <Swiften/Elements/PubSubOwnerPurge.h>
#include <Swiften/Elements/PubSubOwnerSubscriptions.h>

namespace Swift {
	namespace Detail {
		template<typename T> 
		struct PubSubPayloadTraits;

#define SWIFTEN_PUBSUB_DECLARE_PAYLOAD_TRAITS(PAYLOAD, CONTAINER, RESPONSE) \
		template<> struct PubSubPayloadTraits< PAYLOAD > { \
			typedef CONTAINER ContainerType; \
			typedef RESPONSE ResponseType; \
		};

		SWIFTEN_PUBSUB_FOREACH_PUBSUB_PAYLOAD_TYPE(
				SWIFTEN_PUBSUB_DECLARE_PAYLOAD_TRAITS)
	}

	template<typename T>
	class PubSubRequest : public Request {
			typedef typename Detail::PubSubPayloadTraits<T>::ContainerType ContainerType;
			typedef typename Detail::PubSubPayloadTraits<T>::ResponseType ResponseType;

		public:
			PubSubRequest(
					IQ::Type type, 
					const JID& receiver, 
					boost::shared_ptr<T> payload, 
					IQRouter* router) :
						Request(type, receiver, router) {
				boost::shared_ptr<ContainerType> wrapper = boost::make_shared<ContainerType>();
				wrapper->setPayload(payload);
				setPayload(wrapper);
			}

			PubSubRequest(
					IQ::Type type,
					const JID& sender,
					const JID& receiver,
					boost::shared_ptr<T> payload, 
					IQRouter* router) :
						Request(type, sender, receiver, router) {
				boost::shared_ptr<ContainerType> wrapper = boost::make_shared<ContainerType>();
				wrapper->setPayload(payload);
				setPayload(wrapper);
			}

			virtual void handleResponse(
					boost::shared_ptr<Payload> payload, ErrorPayload::ref error) {
				boost::shared_ptr<ResponseType> result;
				if (boost::shared_ptr<ContainerType> container = boost::dynamic_pointer_cast<ContainerType>(payload)) {
					result = boost::dynamic_pointer_cast<ResponseType>(container->getPayload());
				}
				onResponse(result, error);
			}

		public:
			boost::signal<void (boost::shared_ptr<ResponseType>, ErrorPayload::ref)> onResponse;
	};
}