/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.

Additional permissions under GNU GPL version 3 section 7

If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/
#ifndef plKeysAndValues_h_inc
#define plKeysAndValues_h_inc

#include "hsConfig.h"
#include "hsUtils.h"
#include "hsStlUtils.h"
#include "hsStream.h"

#pragma warning(disable:4284)

enum KAddValueMode
{
	kAlwaysAdd,			// Add another value if key already exists
	kReplaceIfExists,	// Replace any existing key with new value.
	kFailIfExists,		// Do not add if key already exists.
};


// class plKeysAndValues
//	A multimap class. Stores multiple values per key.
class plKeysAndValues : public hsStreamable
{
public:    
	typedef std::list<xtl::istring>
		Values;
	typedef std::map<xtl::istring, Values>
		Keys;

private:
	mutable Keys fKeys;

public:
	// ctor
	plKeysAndValues();
	plKeysAndValues(const plKeysAndValues & src);
	virtual ~plKeysAndValues(){}
	// assign
	plKeysAndValues & operator =(const plKeysAndValues & src);
	// clear
	void Clear();
	void RemoveKey(const std::string & key);
	// query
	bool HasKey(const std::string & key) const;
	bool KeyHasValue(const std::string & key, const std::string & value);
	bool KeyHasValue(const std::string & key, int value);
	bool KeyHasValue(const std::string & key, double value);
	// add
	bool AddValue(const std::string & key, const std::string & value, KAddValueMode mode=kAlwaysAdd);
	bool AddValue(const std::string & key, int value, KAddValueMode mode=kAlwaysAdd);
	bool AddValue(const std::string & key, double value, KAddValueMode mode=kAlwaysAdd);
	bool AddValues(const std::string & key, const std::vector<std::string> & values, KAddValueMode mode=kAlwaysAdd);
	// set (clear and add)
	bool SetValue(const std::string & key, const std::string & value);
	bool SetValue(const std::string & key, int value);
	bool SetValue(const std::string & key, double value);
	// get single value
	std::string GetValue(const std::string & key, const std::string & defval="", bool * outFound=nil) const;
	UInt32 GetValue(const std::string & key, UInt32 defval, bool * outFound=nil) const;
	int GetValue(const std::string & key, int defval, bool * outFound=nil) const;
	double GetValue(const std::string & key, double defval, bool * outFound=nil) const;
	std::vector<std::string> GetAllValues(const std::string & key);
	// key iterator
	bool GetKeyIterators(Keys::const_iterator & iter, Keys::const_iterator & end) const;
	// value iterator (use for getting all values for key)
	bool GetValueIterators(const xtl::istring & key, Values::const_iterator & iter, Values::const_iterator & end) const;
	// streamable
	void Read(hsStream * s);
	void Write(hsStream * s);
	// TODO:
	UInt32 GetStreamSize() { return 0;}
};


/////////////////////////////////////////////////////////////



#endif // plKeysAndValues_h_inc