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data, test: refactor utilities into own file - hsmusic-wiki - HSMusic - static wiki software cataloguing collaborative creation
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author(quasar) nebula <qznebula@protonmail.com>2023-10-01 17:01:21 -0300
committer(quasar) nebula <qznebula@protonmail.com>2023-10-01 17:04:16 -0300
commitab7591e45e7e31b4e2c0e2f81e224672145993fa (patch)
tree11dcccc57e71424baa3b73a3eca58dabc56dca05 /src/data/composite/things/track/inheritFromOriginalRelease.js
parentdfcf911501211bbfc64b8ce6a964b70c6406447f (diff)
data, test: refactor utilities into own file
Primarily for more precies test coverage mapping, but also to make
navigation a bit easier and consolidate complex functions with
lots of imports out of the same space as other, more simple or
otherwise specialized files.
Diffstat (limited to 'src/data/composite/things/track/inheritFromOriginalRelease.js')
-rw-r--r--src/data/composite/things/track/inheritFromOriginalRelease.js43
1 files changed, 43 insertions, 0 deletions
diff --git a/src/data/composite/things/track/inheritFromOriginalRelease.js b/src/data/composite/things/track/inheritFromOriginalRelease.js
new file mode 100644
index 0000000..a9d57f8
--- /dev/null
+++ b/src/data/composite/things/track/inheritFromOriginalRelease.js
@@ -0,0 +1,43 @@
+// Early exits with a value inherited from the original release, if
+// this track is a rerelease, and otherwise continues with no further
+// dependencies provided. If allowOverride is true, then the continuation
+// will also be called if the original release exposed the requested
+// property as null.
+
+import {input, templateCompositeFrom} from '#composite';
+
+import withOriginalRelease from './withOriginalRelease.js';
+
+export default templateCompositeFrom({
+  annotation: `inheritFromOriginalRelease`,
+
+  inputs: {
+    property: input({type: 'string'}),
+    allowOverride: input({type: 'boolean', defaultValue: false}),
+  },
+
+  steps: () => [
+    withOriginalRelease(),
+
+    {
+      dependencies: [
+        '#originalRelease',
+        input('property'),
+        input('allowOverride'),
+      ],
+
+      compute: (continuation, {
+        ['#originalRelease']: originalRelease,
+        [input('property')]: originalProperty,
+        [input('allowOverride')]: allowOverride,
+      }) => {
+        if (!originalRelease) return continuation();
+
+        const value = originalRelease[originalProperty];
+        if (allowOverride && value === null) return continuation();
+
+        return continuation.exit(value);
+      },
+    },
+  ],
+});