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/*
 * Copyright (c) 2010-2013 Kevin Smith
 * Licensed under the GNU General Public License v3.
 * See Documentation/Licenses/GPLv3.txt for more information.
 */

#pragma once

#include <Swiften/MUC/MUC.h>
#include <Swiften/JID/JID.h>
#include <Swiften/Base/API.h>
#include <string>
#include <Swiften/Elements/Message.h>
#include <Swiften/Elements/Presence.h>
#include <Swiften/Elements/MUCOccupant.h>
#include <Swiften/MUC/MUCRegistry.h>
#include <Swiften/Elements/MUCOwnerPayload.h>
#include <Swiften/Elements/MUCAdminPayload.h>
#include <Swiften/Elements/Form.h>

#include <boost/shared_ptr.hpp>
#include <Swiften/Base/boost_bsignals.h>
#include <boost/signals/connection.hpp>

#include <map>

namespace Swift {
	class StanzaChannel;
	class IQRouter;
	class DirectedPresenceSender;

	class SWIFTEN_API MUCImpl : public MUC {
		public:
			typedef boost::shared_ptr<MUCImpl> ref;

		public:
			MUCImpl(StanzaChannel* stanzaChannel, IQRouter* iqRouter, DirectedPresenceSender* presenceSender, const JID &muc, MUCRegistry* mucRegistry);
			virtual ~MUCImpl();

			/**
			 * Returns the (bare) JID of the MUC.
			 */
			virtual JID getJID() const {
				return ownMUCJID.toBare();
			}

			/**
			 * Returns if the room is unlocked and other people can join the room.
			 * @return True if joinable by others; false otherwise.
			 */
			virtual bool isUnlocked() const {
				return isUnlocked_;
			}

			virtual void joinAs(const std::string &nick);
			virtual void joinWithContextSince(const std::string &nick, const boost::posix_time::ptime& since);
			/*virtual void queryRoomInfo(); */
			/*virtual void queryRoomItems(); */
			/*virtual std::string getCurrentNick(); */
			virtual std::map<std::string, MUCOccupant> getOccupants() const;

			/**
			 * Send a new presence to the MUC indicating a nickname change. Any custom status the user had in the is cleared.
			 * @param newNickname The nickname to change to.
			 */
			virtual void changeNickname(const std::string& newNickname);
			virtual void part();
			/*virtual void handleIncomingMessage(Message::ref message); */
			/** Expose public so it can be called when e.g. user goes offline */
			virtual void handleUserLeft(LeavingType);
			/** Get occupant information*/
			virtual const MUCOccupant& getOccupant(const std::string& nick);
			virtual bool hasOccupant(const std::string& nick);
			virtual void kickOccupant(const JID& jid);
			virtual void changeOccupantRole(const JID& jid, MUCOccupant::Role role);
			virtual void requestAffiliationList(MUCOccupant::Affiliation);
			virtual void changeAffiliation(const JID& jid, MUCOccupant::Affiliation affiliation);
			virtual void changeSubject(const std::string& subject);
			virtual void requestConfigurationForm();
			virtual void configureRoom(Form::ref);
			virtual void cancelConfigureRoom();
			virtual void destroyRoom();
			/** Send an invite for the person to join the MUC */
			virtual void invitePerson(const JID& person, const std::string& reason = "", bool isImpromptu = false, bool isReuseChat = false);
			virtual void setCreateAsReservedIfNew() {createAsReservedIfNew = true;}
			virtual void setPassword(const boost::optional<std::string>& password);

		private:
			bool isFromMUC(const JID& j) const {
				return ownMUCJID.equals(j, JID::WithoutResource);
			}

			const std::string& getOwnNick() const {
				return ownMUCJID.getResource();
			}

		private:
			void handleIncomingPresence(Presence::ref presence);
			void internalJoin(const std::string& nick);
			void handleCreationConfigResponse(MUCOwnerPayload::ref, ErrorPayload::ref);
			void handleOccupantRoleChangeResponse(MUCAdminPayload::ref, ErrorPayload::ref, const JID&, MUCOccupant::Role);
			void handleAffiliationChangeResponse(MUCAdminPayload::ref, ErrorPayload::ref, const JID&, MUCOccupant::Affiliation);
			void handleAffiliationListResponse(MUCAdminPayload::ref, ErrorPayload::ref, MUCOccupant::Affiliation);
			void handleConfigurationFormReceived(MUCOwnerPayload::ref, ErrorPayload::ref);
			void handleConfigurationResultReceived(MUCOwnerPayload::ref, ErrorPayload::ref);

		private:
			JID ownMUCJID;
			StanzaChannel* stanzaChannel;
			IQRouter* iqRouter_;
			DirectedPresenceSender* presenceSender;
			MUCRegistry* mucRegistry;
			std::map<std::string, MUCOccupant> occupants;
			bool joinSucceeded_;
			bool joinComplete_;
			boost::bsignals::scoped_connection scopedConnection_;
			boost::posix_time::ptime joinSince_;
			bool createAsReservedIfNew;
			bool unlocking;
			bool isUnlocked_;
			boost::optional<std::string> password;
	};
}