1 files changed, 68 insertions, 0 deletions
diff --git a/src/content/dependencies/generateArtistInfoPageMidiProjectFilesChunkedList.js b/src/content/dependencies/generateArtistInfoPageMidiProjectFilesChunkedList.js
new file mode 100644
index 00000000..475350a7
--- /dev/null
+++ b/src/content/dependencies/generateArtistInfoPageMidiProjectFilesChunkedList.js
@@ -0,0 +1,68 @@
+import {chunkByConditions, stitchArrays} from '#sugar';
+import {sortAlbumsTracksChronologically, sortContributionsChronologically}
+  from '#sort';
+
+export default {
+  query(artist) {
+    const query = {};
+
+    const allContributions = [
+      ...artist.midiProjectFileArtistContributions,
+    ];
+
+    const getAdditionalFile = contrib =>
+      contrib.thing;
+
+    const getAlbumOrTrack = contrib =>
+      getAdditionalFile(contrib).thing;
+
+    sortContributionsChronologically(
+      allContributions,
+      sortAlbumsTracksChronologically,
+      {getThing: getAlbumOrTrack});
+
+    const getAlbum = contrib =>
+      (getAlbumOrTrack(contrib).isTrack
+        ? getAlbumOrTrack(contrib).album
+        : getAlbumOrTrack(contrib));
+
+    query.contribs =
+      chunkByConditions(allContributions, [
+        (a, b) => getAlbum(a) !== getAlbum(b),
+      ]).map(contribs =>
+          chunkByConditions(contribs, [
+            (a, b) => getAdditionalFile(a) !== getAdditionalFile(b),
+          ]));
+
+    query.albums =
+      query.contribs
+        .map(contribs => contribs[0][0])
+        .map(contrib => getAlbum(contrib));
+
+    return query;
+  },
+
+  relations: (relation, query, artist) => ({
+    template:
+      relation('generateArtistInfoPageChunkedList'),
+
+    chunks:
+      stitchArrays({
+        album: query.albums,
+        contribs: query.contribs,
+      }).map(({album, contribs}) =>
+          relation('generateArtistInfoPageAdditionalFilesChunk',
+            artist,
+            album,
+            contribs)),
+  }),
+
+  generate: (relations) =>
+    relations.template.slots({
+      chunks:
+        relations.chunks.map(chunk =>
+          chunk.slots({
+            string: 'midiProjectFile',
+          })),
+    }),
+};