content: listArtistsByDuration

1 files changed, 55 insertions, 0 deletions

diff --git a/src/content/dependencies/listArtistsByDuration.js b/src/content/dependencies/listArtistsByDuration.js
new file mode 100644
index 0000000..478e99b
--- /dev/null
+++ b/src/content/dependencies/listArtistsByDuration.js
@@ -0,0 +1,55 @@
+import {stitchArrays} from '../../util/sugar.js';
+import {filterByCount, getTotalDuration, sortByCount} from '../../util/wiki-data.js';
+
+export default {
+  contentDependencies: ['generateListingPage', 'linkArtist'],
+  extraDependencies: ['language', 'wikiData'],
+
+  sprawl({artistData}) {
+    return {artistData};
+  },
+
+  query({artistData}, spec) {
+    const artists = artistData.slice();
+    const durations = artists.map(artist =>
+      getTotalDuration([
+        ...(artist.tracksAsArtist ?? []),
+        ...(artist.tracksAsContributor ?? []),
+      ], {originalReleasesOnly: true}));
+
+    filterByCount(artists, durations);
+    sortByCount(artists, durations, {greatestFirst: true});
+
+    return {spec, artists, durations};
+  },
+
+  relations(relation, query) {
+    return {
+      page: relation('generateListingPage', query.spec),
+
+      artistLinks:
+        query.artists
+          .map(artist => relation('linkArtist', artist)),
+    };
+  },
+
+  data(query) {
+    return {
+      durations: query.durations,
+    };
+  },
+
+  generate(data, relations, {language}) {
+    return relations.page.slots({
+      type: 'rows',
+      rows:
+        stitchArrays({
+          link: relations.artistLinks,
+          duration: data.durations,
+        }).map(({link, duration}) => ({
+            artist: link,
+            duration: language.formatDuration(duration),
+          })),
+    });
+  },
+};