X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsone%2Fdata%2FAlbum.java;h=3eefc3e2601b90174d21b32954e828c2fa555447;hb=5473139d890c40c85712f59ba534583961c2772e;hp=1e79f89a8738da34ed600ba7f231ef43e1cd07bf;hpb=f313a48bfc36f9968d18b76436739c093b562b7a;p=Sone.git

diff --git a/src/main/java/net/pterodactylus/sone/data/Album.java b/src/main/java/net/pterodactylus/sone/data/Album.java
index 1e79f89..3eefc3e 100644
--- a/src/main/java/net/pterodactylus/sone/data/Album.java
+++ b/src/main/java/net/pterodactylus/sone/data/Album.java
@@ -1,5 +1,5 @@
 /*
- * Sone - Album.java - Copyright © 2011–2013 David Roden
+ * Sone - Album.java - Copyright © 2011–2020 David Roden
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -17,54 +17,17 @@
 
 package net.pterodactylus.sone.data;
 
-import static java.util.Arrays.asList;
-import static java.util.Collections.emptyList;
-
-import java.util.ArrayList;
 import java.util.Collections;
-import java.util.Comparator;
 import java.util.List;
 import javax.annotation.Nonnull;
 
 import com.google.common.base.Function;
-import com.google.common.base.Predicate;
-import com.google.common.collect.FluentIterable;
-import com.google.common.collect.ImmutableList;
 
 /**
  * Container for images that can also contain nested {@link Album}s.
- *
- * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  */
 public interface Album extends Identified, Fingerprintable {
 
-	/** Compares two {@link Album}s by {@link #getTitle()}. */
-	Comparator<Album> TITLE_COMPARATOR = new Comparator<Album>() {
-
-		@Override
-		public int compare(Album leftAlbum, Album rightAlbum) {
-			return leftAlbum.getTitle().compareToIgnoreCase(rightAlbum.getTitle());
-		}
-	};
-
-	/** Function that flattens the given album and all albums beneath it. */
-	Function<Album, List<Album>> FLATTENER = new Function<Album, List<Album>>() {
-
-		@Override
-		@Nonnull
-		public List<Album> apply(Album album) {
-			if (album == null) {
-				return emptyList();
-			}
-			List<Album> albums = new ArrayList<Album>();
-			albums.add(album);
-			for (Album subAlbum : album.getAlbums()) {
-				albums.addAll(FluentIterable.from(ImmutableList.of(subAlbum)).transformAndConcat(FLATTENER).toList());
-			}
-			return albums;
-		}
-	};
-
 	/** Function that transforms an album into the images it contains. */
 	Function<Album, List<Image>> IMAGES = new Function<Album, List<Image>>() {
 
@@ -76,32 +39,6 @@ public interface Album extends Identified, Fingerprintable {
 	};
 
 	/**
-	 * Filter that removes all albums that do not have any images in any album
-	 * below it.
-	 */
-	Predicate<Album> NOT_EMPTY = new Predicate<Album>() {
-
-		@Override
-		public boolean apply(Album album) {
-			/* so, we flatten all albums below the given one and check whether at least one album… */
-			return FluentIterable.from(asList(album)).transformAndConcat(FLATTENER).anyMatch(new Predicate<Album>() {
-
-				@Override
-				public boolean apply(Album album) {
-					/* …contains any inserted images. */
-					return !album.getImages().isEmpty() && FluentIterable.from(album.getImages()).allMatch(new Predicate<Image>() {
-
-						@Override
-						public boolean apply(Image input) {
-							return input.isInserted();
-						}
-					});
-				}
-			});
-		}
-	};
-
-	/**
 	 * Returns the ID of this album.
 	 *
 	 * @return The ID of this album
@@ -116,16 +53,6 @@ public interface Album extends Identified, Fingerprintable {
 	Sone getSone();
 
 	/**
-	 * Sets the owner of the album. The owner can only be set as long as the
-	 * current owner is {@code null}.
-	 *
-	 * @param sone
-	 * 		The album owner
-	 * @return This album
-	 */
-	Album setSone(Sone sone);
-
-	/**
 	 * Returns the nested albums.
 	 *
 	 * @return The nested albums
@@ -216,23 +143,6 @@ public interface Album extends Identified, Fingerprintable {
 	Image moveImageDown(Image image);
 
 	/**
-	 * Returns the album image of this album, or {@code null} if no album image has
-	 * been set.
-	 *
-	 * @return The image to show when this album is listed
-	 */
-	Image getAlbumImage();
-
-	/**
-	 * Sets the ID of the album image.
-	 *
-	 * @param id
-	 * 		The ID of the album image
-	 * @return This album
-	 */
-	Album setAlbumImage(String id);
-
-	/**
 	 * Returns whether this album contains any other albums or images.
 	 *
 	 * @return {@code true} if this album is empty, {@code false} otherwise
@@ -279,15 +189,6 @@ public interface Album extends Identified, Fingerprintable {
 	String getTitle();
 
 	/**
-	 * Sets the title of this album.
-	 *
-	 * @param title
-	 * 		The title of this album
-	 * @return This album
-	 */
-	Album setTitle(String title);
-
-	/**
 	 * Returns the description of this album.
 	 *
 	 * @return The description of this album
@@ -295,12 +196,29 @@ public interface Album extends Identified, Fingerprintable {
 	String getDescription();
 
 	/**
-	 * Sets the description of this album.
+	 * Returns a modifier for this album.
 	 *
-	 * @param description
-	 * 		The description of this album
-	 * @return This album
+	 * @return A modifier for this album
+	 * @throws IllegalStateException
+	 * 		if this album can not be modified
+	 */
+	Modifier modify() throws IllegalStateException;
+
+	/**
+	 * Allows modifying an album. Modifications are only performed once {@link
+	 * #update()} has succesfully returned a new album with the modifications
+	 * made.
 	 */
-	Album setDescription(String description);
+	interface Modifier {
+
+		Modifier setTitle(String title);
+
+		Modifier setDescription(String description);
+
+		Album update() throws IllegalStateException;
+
+		class AlbumTitleMustNotBeEmpty extends IllegalStateException { }
+
+	}
 
 }