2 * Sone - Album.kt - Copyright © 2019–2020 David ‘Bombe’ Roden
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 package net.pterodactylus.sone.data
20 /** Returns all images contained in this album and all its albums. */
21 val Album.allImages: Collection<Image>
23 images + albums.flatMap(Album::allImages)
26 * Returns this album and all albums contained in this album (recursively).
27 * A child album is always listed after its parent.
29 val Album.allAlbums: List<Album>
31 listOf(this) + albums.flatMap(Album::allAlbums)
33 @get:JvmName("notEmpty")
34 val notEmpty: (Album) -> Boolean = { album ->
35 album.allImages.let { images ->
36 images.isNotEmpty() && images.any(Image::isInserted)