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###

ownCloud - News

@author Bernhard Posselt
@copyright 2012 Bernhard Posselt nukeawhale@gmail.com

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
License as published by the Free Software Foundation; either
version 3 of the License, or any later version.

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 AFFERO GENERAL PUBLIC LICENSE for more details.

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

###


angular.module('News').factory 'FolderBl',
['_Bl', 'FolderModel', 'FeedBl', 'Persistence', 'FeedType', 'ActiveFeed',
'ItemModel', 'ShowAll', '_ExistsError',
(_Bl, FolderModel, FeedBl, Persistence, FeedType, ActiveFeed,
ItemModel, ShowAll, _ExistsError)->

	class FolderBl extends _Bl

		constructor: (@_folderModel, @_feedBl, @_showAll, activeFeed,
			          persistence, @_feedType, itemModel) ->
			super(activeFeed, persistence, itemModel, @_feedType.Folder)


		delete: (folderId) ->
			@_folderModel.removeById(folderId)
			@_persistence.deleteFolder(folderId)


		hasFeeds: (folderId) ->
			return @_feedBl.getFeedsOfFolder(folderId).length


		toggleFolder: (folderId) ->
			folder = @_folderModel.getById(folderId)
			
			if angular.isDefined(folder)
				folder.opened = !folder.opened
				if folder.opened
					@_persistence.openFolder(folder.id)
				else
					@_persistence.collapseFolder(folder.id)


		markFolderRead: (folderId) ->
			for feed in @_feedBl.getFeedsOfFolder(folderId)
				@_feedBl.markFeedRead(feed.id)


		getUnreadCount: (folderId) ->
			return @_feedBl.getFolderUnreadCount(folderId)
			

		isVisible: (folderId) ->
			if @_showAll.getShowAll()
				return true
			else
				if @isActive(folderId) or
				@_feedBl.getFolderUnreadCount(folderId) > 0
					return true
				if @_activeFeed.getType() == @_feedType.Feed
					for feed in @_feedBl.getFeedsOfFolder(folderId)
						if feed.id == @_activeFeed.getId()
							return true
				return false


		getAll: ->
			return @_folderModel.getAll()


		create: (folderName, onSuccess=null, onFailure=null) ->
			onSuccess or= ->
			onFailure or= ->

			if angular.isUndefined(folderName) or folderName.trim() == ''
				throw new Error()
			
			folderName = folderName.trim()
			
			if @_folderModel.getByName(folderName)
				throw new _ExistsError()

			folder =
				name: folderName

			@_folderModel.add(folder)

			success = (response) =>
				if response.status == 'error'
					folder.error = response.msg
					onFailure()
				else
					onSuccess()

			@_persistence.createFolder folderName, 0, success


	return new FolderBl(FolderModel, FeedBl, ShowAll, ActiveFeed, Persistence,
		                FeedType, ItemModel)

]