1 files changed, 76 insertions, 0 deletions
diff --git a/src/content/dependencies/listGroupsByCategory.js b/src/content/dependencies/listGroupsByCategory.js
new file mode 100644
index 00000000..84a895f6
--- /dev/null
+++ b/src/content/dependencies/listGroupsByCategory.js
@@ -0,0 +1,76 @@
+import {stitchArrays} from '../../util/sugar.js';
+
+export default {
+  contentDependencies: ['generateListingPage', 'linkGroup', 'linkGroupGallery'],
+  extraDependencies: ['language', 'wikiData'],
+
+  sprawl({groupCategoryData}) {
+    return {groupCategoryData};
+  },
+
+  query({groupCategoryData}, spec) {
+    return {
+      spec,
+      groupCategories: groupCategoryData,
+    };
+  },
+
+  relations(relation, query) {
+    return {
+      page: relation('generateListingPage', query.spec),
+
+      categoryLinks:
+        query.groupCategories
+          .map(category => relation('linkGroup', category.groups[0])),
+
+      infoLinks:
+        query.groupCategories
+          .map(category =>
+            category.groups
+              .map(group => relation('linkGroup', group))),
+
+      galleryLinks:
+        query.groupCategories
+          .map(category =>
+            category.groups
+              .map(group => relation('linkGroupGallery', group)))
+    };
+  },
+
+  data(query) {
+    return {
+      categoryNames:
+        query.groupCategories
+          .map(category => category.name),
+    };
+  },
+
+  generate(data, relations, {language}) {
+    return relations.page.slots({
+      type: 'chunks',
+
+      chunkTitles:
+        stitchArrays({
+          link: relations.categoryLinks,
+          name: data.categoryNames,
+        }).map(({link, name}) => ({
+            category: link.slot('content', name),
+          })),
+
+      chunkRows:
+        stitchArrays({
+          infoLinks: relations.infoLinks,
+          galleryLinks: relations.galleryLinks,
+        }).map(({infoLinks, galleryLinks}) =>
+            stitchArrays({
+              infoLink: infoLinks,
+              galleryLink: galleryLinks,
+            }).map(({infoLink, galleryLink}) => ({
+                group: infoLink,
+                gallery:
+                  galleryLink
+                    .slot('content', language.$('listingPage.listGroups.byCategory.chunk.item.gallery')),
+              }))),
+    });
+  },
+};