1 files changed, 60 insertions, 0 deletions
diff --git a/src/content/dependencies/listAlbumsByDateAdded.js b/src/content/dependencies/listAlbumsByDateAdded.js
new file mode 100644
index 0000000..d462ad4
--- /dev/null
+++ b/src/content/dependencies/listAlbumsByDateAdded.js
@@ -0,0 +1,60 @@
+import {sortAlphabetically} from '#sort';
+import {chunkByProperties} from '#sugar';
+
+export default {
+  contentDependencies: ['generateListingPage', 'linkAlbum'],
+  extraDependencies: ['language', 'wikiData'],
+
+  sprawl({albumData}) {
+    return {albumData};
+  },
+
+  query({albumData}, spec) {
+    return {
+      spec,
+
+      chunks:
+        chunkByProperties(
+          sortAlphabetically(albumData.filter(a => a.dateAddedToWiki))
+            .sort((a, b) => {
+              if (a.dateAddedToWiki < b.dateAddedToWiki) return -1;
+              if (a.dateAddedToWiki > b.dateAddedToWiki) return 1;
+            }),
+          ['dateAddedToWiki']),
+    };
+  },
+
+  relations(relation, query) {
+    return {
+      page: relation('generateListingPage', query.spec),
+
+      albumLinks:
+        query.chunks.map(({chunk}) =>
+          chunk.map(album => relation('linkAlbum', album))),
+    };
+  },
+
+  data(query) {
+    return {
+      dates:
+        query.chunks.map(({dateAddedToWiki}) => dateAddedToWiki),
+    };
+  },
+
+  generate(data, relations, {language}) {
+    return relations.page.slots({
+      type: 'chunks',
+
+      chunkTitles:
+        data.dates.map(date => ({
+          date: language.formatDate(date),
+        })),
+
+      chunkRows:
+        relations.albumLinks.map(albumLinks =>
+          albumLinks.map(link => ({
+            album: link,
+          }))),
+    });
+  },
+};