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###

ownCloud - News

@author Bernhard Posselt
@copyright 2012 Bernhard Posselt dev@bernhard-posselt.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 'Persistence',
['Request', 'FeedLoading', 'AutoPageLoading', 'NewLoading', 'Config',
'ActiveFeed', '$rootScope', '$q'
(Request, FeedLoading, AutoPageLoading, NewLoading, Config, ActiveFeed,
$rootScope, $q) ->

	class Persistence

		constructor: (@_request, @_feedLoading, @_autoPageLoading, @_newLoading,
		              @_config, @_activeFeed, @_$rootScope) ->


		init: ->
			###
			Loads the initial data from the server
			###

			@deferred = $q.defer()

			# items can only be loaded after the active feed is known
			@getActiveFeed =>
				@getItems(@_activeFeed.getType(), @_activeFeed.getId())

			@getAllFolders()

			successCallback = =>
				@deferred.resolve()

			@getAllFeeds(successCallback)
			@userSettingsRead()
			@userSettingsLanguage()

			@deferred.promise

		###
			ITEM CONTROLLER
		###
		getItems: (type, id, offset, onSuccess=null) ->
			onSuccess or= ->

			# show different loading signs
			if offset == 0
				loading = @_feedLoading
			else
				loading = @_autoPageLoading

			# loading sign handling
			loading.increase()
			successCallbackWrapper = (data) =>
				onSuccess(data)
				loading.decrease()
			failureCallbackWrapper = (data) =>
				loading.decrease()

			params =
				data:
					limit: @_config.itemBatchSize
					offset: offset
					id: id
					type: type
				onSuccess: successCallbackWrapper
				onFailure: failureCallbackWrapper

			@_request.get 'news_items', params


		starItem: (feedId, guidHash) ->
			###
			Stars an item
			###
			params =
				routeParams:
					feedId: feedId
					guidHash: guidHash

			@_request.post 'news_items_star', params


		unstarItem: (feedId, guidHash) ->
			###
			Unstars an item
			###
			params =
				routeParams:
					feedId: feedId
					guidHash: guidHash

			@_request.post 'news_items_unstar', params


		readItem: (itemId) ->
			###
			Sets an item as read
			###
			params =
				routeParams:
					itemId: itemId

			@_request.post 'news_items_read', params



		unreadItem: (itemId) ->
			###
			Sets an item as unread
			###
			params =
				routeParams:
					itemId: itemId

			@_request.post 'news_items_unread', params


		setAllRead: (highestItemId) ->
			###
			sets all items as read
			###
			params =
				data:
					highestItemId: highestItemId

			@_request.post 'news_items_all_read', params


		###
			FEED CONTROLLER
		###
		getAllFeeds: (onSuccess, showLoading=true) ->
			onSuccess or= ->

			# loading sign handling
			if showLoading
				@_feedLoading.increase()
				successCallbackWrapper = (data) =>
					onSuccess()
					@_feedLoading.decrease()
				failureCallbackWrapper = (data) =>
					@_feedLoading.decrease()
			else
				successCallbackWrapper = (data) =>
					onSuccess()
				failureCallbackWrapper = (data) =>

			params =
				onSuccess: successCallbackWrapper
				onFailure: failureCallbackWrapper

			@_request.get 'news_feeds', params


		getActiveFeed: (onSuccess) ->
			# loading sign handling
			@_feedLoading.increase()
			successCallbackWrapper = (data) =>
				onSuccess()
				@_feedLoading.decrease()
			failureCallbackWrapper = (data) =>
				@_feedLoading.decrease()

			params =
				onSuccess: successCallbackWrapper
				onFailure: failureCallbackWrapper

			@_request.get 'news_feeds_active', params


		createFeed: (url, parentFolderId, onSuccess=null, onFailure=null) ->
			onSuccess or= ->
			onFailure or= ->
			params =
				data:
					parentFolderId: parentFolderId
					url: url
				onSuccess: onSuccess
				onFailure: onFailure

			@_request.post 'news_feeds_create', params


		deleteFeed: (feedId) ->
			params =
				routeParams:
					feedId: feedId

			@_request.delete 'news_feeds_delete', params


		restoreFeed: (feedId, onSuccess=null) ->
			onSuccess or= ->
			params =
				onSuccess: onSuccess
				routeParams:
					feedId: feedId

			@_request.post 'news_feeds_restore', params


		moveFeed: (feedId, folderId) ->
			###
			moves a feed to a new folder
			###
			params =
				routeParams:
					feedId: feedId
				data:
					parentFolderId: folderId

			@_request.post 'news_feeds_move', params


		setFeedRead: (feedId, highestItemId) ->
			###
			sets all items of a feed as read
			###
			params =
				routeParams:
					feedId: feedId
				data:
					highestItemId: highestItemId

			@_request.post 'news_feeds_read', params


		updateFeed: (feedId) ->
			###
			moves a feed to a new folder
			###
			params =
				routeParams:
					feedId: feedId

			@_request.post 'news_feeds_update', params


		importGoogleReader: (json, onSuccess) ->
			params =
				data:
					json: json
				onSuccess: onSuccess

			@_request.post 'news_feeds_import_googlereader', params


		###
			FOLDER CONTROLLER
		###
		getAllFolders: (onSuccess, showLoading=true) ->
			onSuccess or= ->


			# loading sign handling
			if showLoading
				@_feedLoading.increase()
				successCallbackWrapper = (data) =>
					onSuccess()
					@_feedLoading.decrease()
				failureCallbackWrapper = (data) =>
					@_feedLoading.decrease()
			else
				successCallbackWrapper = (data) =>
					onSuccess()
				failureCallbackWrapper = (data) =>
			

			params =
				onSuccess