Add most recent albums

src/store/music/selectors.ts

@@ -0,0 +1,42 @@
+import { useTypedSelector } from 'store';
+import { parseISO } from 'date-fns';
+import { Album } from './types';
+
+/**
+ * Retrieves a list of the n most recent albums
+ */
+export function useRecentAlbums(amount: number) {
+    const albums = useTypedSelector((state) => state.music.albums.entities);
+    const albumIds = useTypedSelector((state) => state.music.albums.ids);
+
+    const sorted = [...albumIds].sort((a, b) => {
+        const albumA = albums[a];
+        const albumB = albums[b];
+        const dateA = albumA ? parseISO(albumA.DateCreated).getTime() : 0;
+        const dateB = albumB ? parseISO(albumB.DateCreated).getTime() : 0;
+        return dateB - dateA;
+    });
+
+    return sorted.slice(0, amount);
+}
+
+export function useAlbumsByArtist() {
+    const albums = useTypedSelector((state) => state.music.albums.entities);
+    const albumIds = useTypedSelector((state) => state.music.albums.ids);
+
+    const sorted = [...albumIds].sort((a, b) => {
+        const albumA = albums[a];
+        const albumB = albums[b];
+        if ((!albumA && !albumB) || (!albumA?.AlbumArtist && !albumB?.AlbumArtist)) {
+            return 0;
+        } else if (!albumA || !albumA.AlbumArtist) {
+            return 1;
+        } else if (!albumB || !albumB.AlbumArtist) {
+            return -1;
+        }
+
+        return albumA.AlbumArtist.localeCompare(albumB.AlbumArtist);
+    });
+
+    return sorted;
+}