data: Album.suffixTrackDirectories

1 files changed, 36 insertions, 0 deletions

diff --git a/src/data/composite/things/track/withDirectorySuffix.js b/src/data/composite/things/track/withDirectorySuffix.js
new file mode 100644
index 00000000..c063e158
--- /dev/null
+++ b/src/data/composite/things/track/withDirectorySuffix.js
@@ -0,0 +1,36 @@
+import {input, templateCompositeFrom} from '#composite';
+
+import {raiseOutputWithoutDependency} from '#composite/control-flow';
+
+import withPropertyFromAlbum from './withPropertyFromAlbum.js';
+import withSuffixDirectoryFromAlbum from './withSuffixDirectoryFromAlbum.js';
+
+export default templateCompositeFrom({
+  annotation: `withDirectorySuffix`,
+
+  outputs: ['#directorySuffix'],
+
+  steps: () => [
+    withSuffixDirectoryFromAlbum(),
+
+    raiseOutputWithoutDependency({
+      dependency: '#suffixDirectoryFromAlbum',
+      mode: input.value('falsy'),
+      output: input.value({['#directorySuffix']: null}),
+    }),
+
+    withPropertyFromAlbum({
+      property: input.value('directorySuffix'),
+    }),
+
+    {
+      dependencies: ['#album.directorySuffix'],
+      compute: (continuation, {
+        ['#album.directorySuffix']: directorySuffix,
+      }) => continuation({
+        ['#directorySuffix']:
+          directorySuffix,
+      }),
+    },
+  ],
+});