2 files changed, 71 insertions, 0 deletions
diff --git a/src/data/composite/things/contribution/index.js b/src/data/composite/things/contribution/index.js
index b06e8677..e912dadc 100644
--- a/src/data/composite/things/contribution/index.js
+++ b/src/data/composite/things/contribution/index.js
@@ -1,2 +1,3 @@
 export {default as withContributionArtist} from './withContributionArtist.js';
 export {default as withContributionContext} from './withContributionContext.js';
+export {default as withMatchingContributionPresets} from './withMatchingContributionPresets.js';
diff --git a/src/data/composite/things/contribution/withMatchingContributionPresets.js b/src/data/composite/things/contribution/withMatchingContributionPresets.js
new file mode 100644
index 00000000..09454164
--- /dev/null
+++ b/src/data/composite/things/contribution/withMatchingContributionPresets.js
@@ -0,0 +1,70 @@
+import {input, templateCompositeFrom} from '#composite';
+
+import {raiseOutputWithoutDependency} from '#composite/control-flow';
+import {withPropertyFromObject} from '#composite/data';
+
+import withContributionContext from './withContributionContext.js';
+
+export default templateCompositeFrom({
+  annotation: `withMatchingContributionPresets`,
+
+  outputs: ['#matchingContributionPresets'],
+
+  steps: () => [
+    withPropertyFromObject({
+      object: 'thing',
+      property: input.value('wikiInfo'),
+      internal: input.value(true),
+    }),
+
+    raiseOutputWithoutDependency({
+      dependency: '#thing.wikiInfo',
+      output: input.value({
+        '#matchingContributionPresets': null,
+      }),
+    }),
+
+    withPropertyFromObject({
+      object: '#thing.wikiInfo',
+      property: input.value('contributionPresets'),
+    }).outputs({
+      '#thing.wikiInfo.contributionPresets': '#contributionPresets',
+    }),
+
+    raiseOutputWithoutDependency({
+      dependency: '#contributionPresets',
+      mode: input.value('empty'),
+      output: input.value({
+        '#matchingContributionPresets': [],
+      }),
+    }),
+
+    withContributionContext(),
+
+    {
+      dependencies: [
+        '#contributionPresets',
+        '#contributionTarget',
+        '#contributionProperty',
+        'annotation',
+      ],
+
+      compute: (continuation, {
+        ['#contributionPresets']: presets,
+        ['#contributionTarget']: target,
+        ['#contributionProperty']: property,
+        ['annotation']: annotation,
+      }) => continuation({
+        ['#matchingContributionPresets']:
+          presets
+            .filter(preset =>
+              preset.context[0] === target &&
+              preset.context.slice(1).includes(property) &&
+              // For now, only match if the annotation is a complete match.
+              // Partial matches (e.g. because the contribution includes "two"
+              // annotations, separated by commas) don't count.
+              preset.annotation === annotation),
+      })
+    },
+  ],
+});