/*
 * This file is a part of Winix
 * and is not publicly distributed
 * 
 * Copyright (c) 2011, Tomasz Sowa
 * All rights reserved.
 * 
 */

#ifndef headerfile_winix_plugins_groupitem_groups
#define headerfile_winix_plugins_groupitem_groups

#include <map>
#include <vector>
#include <string>



namespace GroupItem
{


class Groups
{
public:


	/*
		adding a new group
		this method returns a group index
	*/
	size_t AddGroup();


	/*
		adding a new path to the last group
	*/
	void AddPath(const std::wstring & path);



	/*
		finding a group which has the specified path
		this method returns a group index
		if there is not such a path everywhere then group size is returned
	*/
	size_t Find(const std::wstring & path);


	/*	
		returning how many groups we have
	*/
	size_t Size();


	/*
		returning the size of the specified group
	*/
	size_t GroupSize(size_t group_index);


	/*
		returning a path of the specified group and position
		or en empty string if indexes are out of ranges
	*/
	const std::wstring & GroupPath(size_t group_index, size_t path_index);


	/*
		removing all groups
	*/
	void Clear();


private:

	/*
		paths_map[L"path_name"] -> group index
	*/
	typedef std::map<std::wstring, size_t> PathsMap;
	PathsMap paths_map;

	/*
		groups[group_index] -> index in paths_names
		the group consists of elements from
		groups_tab[groups_index] to groups_tab[groups_index+1] (without the last one)
	*/
	typedef std::vector<size_t> GroupsTab;
	GroupsTab groups_tab;


	/*
		paths_names
	*/
	typedef std::vector<const std::wstring*> PathsNames;
	PathsNames paths_names;


	const std::wstring empty_str;
};

}

#endif