X-Git-Url: https://git.pterodactylus.net/?p=Sone.git;a=blobdiff_plain;f=src%2Fmain%2Fkotlin%2Fnet%2Fpterodactylus%2Fsone%2Fdata%2FAlbums.kt;h=da71d628941f61de5c3dc3e39635e13b3a47f949;hp=0c79a842897b66ee25853a231f6361c39fceb68e;hb=509b81185b3a1e82bb78308640d0d7b6b741d3e0;hpb=438378deab1514f0f608d975ef65f5b7aea44ccb

diff --git a/src/main/kotlin/net/pterodactylus/sone/data/Albums.kt b/src/main/kotlin/net/pterodactylus/sone/data/Albums.kt
index 0c79a84..da71d62 100644
--- a/src/main/kotlin/net/pterodactylus/sone/data/Albums.kt
+++ b/src/main/kotlin/net/pterodactylus/sone/data/Albums.kt
@@ -21,3 +21,18 @@ package net.pterodactylus.sone.data
 val Album.allImages: Collection<Image>
 	get() =
 		images + albums.flatMap { it.allImages }
+
+/**
+ *  Returns this album and all albums contained in this album (recursively).
+ * A child album is always listed after its parent.
+ */
+val Album.allAlbums: List<Album>
+	get() =
+		listOf(this) + albums.flatMap(Album::allAlbums)
+
+@get:JvmName("notEmpty")
+val notEmpty: (Album) -> Boolean = { album ->
+	album.allImages.let { images ->
+		images.isNotEmpty() && images.any(Image::isInserted)
+	}
+}