Pony.fm/public/scripts/app/services/favourites.coffee

angular.module('ponyfm').factory('favourites', [
	'$rootScope', '$http'
	($rootScope, $http) ->
		tracksDef = null
		playlistsDef = null
		albumsDef = null

		self =
			toggle: (type, id) ->
				def = new $.Deferred()
				$http.post('/api/web/favourites/toggle', {type: type, id: id, _token: pfm.token}).success (res) ->
					def.resolve res

				def.promise()

			fetchTracks: (force) ->
				return tracksDef if !force && tracksDef
				tracksDef = new $.Deferred()
				$http.get('/api/web/favourites/tracks').success (res) ->
					tracksDef.resolve res

				tracksDef

			fetchAlbums: (force) ->
				return albumsDef if !force && albumsDef
				albumsDef = new $.Deferred()
				$http.get('/api/web/favourites/albums').success (res) ->
					albumsDef.resolve res

				albumsDef

			fetchPlaylists: (force) ->
				return playlistsDef if !force && playlistsDef
				playlistsDef = new $.Deferred()
				$http.get('/api/web/favourites/playlists').success (res) ->
					playlistsDef.resolve res

				playlistsDef

		self
])