/** 
 * @file llexperiencelog.h
 * @brief llexperiencelog and related class definitions
 *
 * $LicenseInfo:firstyear=2014&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2014, Linden Research, 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;
 * version 2.1 of the License only.
 * 
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */



#ifndef LL_LLEXPERIENCELOG_H
#define LL_LLEXPERIENCELOG_H

#include "llsingleton.h"

class LLExperienceLog : public LLSingleton<LLExperienceLog>
{
public:
	typedef boost::signals2::signal<void(LLSD&)> 
		callback_signal_t;
	typedef callback_signal_t::slot_type callback_slot_t;
	typedef boost::signals2::connection callback_connection_t;
	callback_connection_t addUpdateSignal(callback_slot_t cb);

	void initialize();

	U32 getMaxDays() const { return mMaxDays; }
	void setMaxDays(U32 val);

	bool getNotifyNewEvent() const { return mNotifyNewEvent; }
	void setNotifyNewEvent(bool val);

	U32 getPageSize() const { return mPageSize; }
	void setPageSize(U32 val) { mPageSize = val; }

	const LLSD& getEvents()const;
	void clear();

	virtual ~LLExperienceLog();

	static void notify(LLSD& message);
	static std::string getFilename();
	static std::string getPermissionString(const LLSD& message, const std::string& base);
protected:
	LLExperienceLog();
	void handleExperienceMessage(LLSD& message);


	void loadEvents();
	void saveEvents();
	void eraseExpired();

	LLSD mEvents;
	callback_signal_t mSignals;
	callback_connection_t mNotifyConnection;
	U32 mMaxDays;
	U32 mPageSize;
	bool mNotifyNewEvent;

	friend class LLExperienceLogDispatchHandler;
	friend class LLSingleton<LLExperienceLog>;
};




#endif // LL_LLEXPERIENCELOG_H