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###
# ownCloud - News app
#
# @author Bernhard Posselt
# Copyright (c) 2012 - Bernhard Posselt <nukeawhale@gmail.com>
#
# This file is licensed under the Affero General Public License version 3 or later.
# See the COPYING-README file
#
###

angular.module('News').factory '_GarbageRegistry', ->
	
	class GarbageRegistry

		constructor: (@itemModel) ->
			@registeredItemIds = {}

		register: (item) ->
			itemId = item.id
			@registeredItemIds[itemId] = item


		unregister: (item) ->
			itemId = item.id
			delete @registeredItemIds[itemId]


		clear: () ->
			# delete read items for performance reasons when showAll == false
			for id, item of @registeredItemIds
				if not item.keptUnread
					@itemModel.removeById(parseInt(id, 10))
				item.keptUnread = false
			@registeredItemIds = {}


	return GarbageRegistry