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/*
 * Copyright (c) 2011-2016 Isode Limited.
 * All rights reserved.
 * See the COPYING file for more information.
 */

#pragma once

#include <string>
#include <vector>

#include <boost/filesystem/path.hpp>

#include <Swiften/Base/boost_bsignals.h>
#include <Swiften/Elements/StatusShow.h>
#include <Swiften/JID/JID.h>

namespace Swift {
	class Roster;
	class TimerFactory;
	class Timer;

	class TableRoster {
		public:
			struct Item {
				Item(const std::string& name, const std::string& description, const JID& jid, StatusShow::Type status, const boost::filesystem::path& avatarPath) : name(name), description(description), jid(jid), status(status), avatarPath(avatarPath) {
				}
				std::string name;
				std::string description;
				JID jid;
				StatusShow::Type status;
				boost::filesystem::path avatarPath;
			};

			struct Index {
				Index(size_t section = 0, size_t row = 0) : section(section), row(row) {
				}
				size_t section;
				size_t row;

				bool operator==(const Index& o) const {
					return o.section == section && o.row == row;
				}
			};

			struct Update {
				std::vector<Index> updatedRows;
				std::vector<Index> insertedRows;
				std::vector<Index> deletedRows;
				std::vector<size_t> insertedSections;
				std::vector<size_t> deletedSections;
			};

			TableRoster(Roster* model, TimerFactory* timerFactory, int updateDelay);
			~TableRoster();
			
			size_t getNumberOfSections() const;
			size_t getNumberOfRowsInSection(size_t section) const;

			const std::string& getSectionTitle(size_t);

			const Item& getItem(const Index&) const;

			boost::signal<void (const Update&)> onUpdate;

		private:
			void handleUpdateTimerTick();
			void scheduleUpdate();

		private:
			friend struct SectionNameEquals;
			struct Section {
				Section(const std::string& name) : name(name) {
				}

				std::string name;
				std::vector<Item> items;
			};

			Roster* model;
			std::vector<Section> sections;
			bool updatePending;
			boost::shared_ptr<Timer> updateTimer;
	};
}