1 files changed, 75 insertions, 0 deletions
diff --git a/src/content/dependencies/generateAlbumSidebar.js b/src/content/dependencies/generateAlbumSidebar.js
new file mode 100644
index 00000000..a84f4357
--- /dev/null
+++ b/src/content/dependencies/generateAlbumSidebar.js
@@ -0,0 +1,75 @@
+export default {
+  contentDependencies: [
+    'generateAlbumSidebarGroupBox',
+    'generateAlbumSidebarTrackSection',
+    'linkAlbum',
+  ],
+
+  extraDependencies: ['html'],
+
+  relations(relation, album, track) {
+    const relations = {};
+
+    relations.albumLink =
+      relation('linkAlbum', album);
+
+    relations.groupBoxes =
+      album.groups.map(group =>
+        relation('generateAlbumSidebarGroupBox', album, group));
+
+    relations.trackSections =
+      album.trackSections.map(trackSection =>
+        relation('generateAlbumSidebarTrackSection', album, track, trackSection));
+
+    return relations;
+  },
+
+  data(album, track) {
+    return {isAlbumPage: !track};
+  },
+
+  generate(data, relations, {html}) {
+    const trackListBox = {
+      content:
+        html.tags([
+          html.tag('h1', relations.albumLink),
+          relations.trackSections,
+        ]),
+    };
+
+    if (data.isAlbumPage) {
+      const groupBoxes =
+        relations.groupBoxes
+          .map(content => content.slot('mode', 'album'))
+          .map(content => ({content}));
+
+      return {
+        leftSidebarMultiple: [
+          ...groupBoxes,
+          trackListBox,
+        ],
+      };
+    }
+
+    const conjoinedGroupBox = {
+      content:
+        relations.groupBoxes
+          .flatMap((content, i, {length}) => [
+            content.slot('mode', 'track'),
+            i < length - 1 &&
+              html.tag('hr', {
+                style: `border-color: var(--primary-color); border-style: none none dotted none`
+              }),
+          ])
+          .filter(Boolean),
+    };
+
+    return {
+      // leftSidebarStickyMode: 'column',
+      leftSidebarMultiple: [
+        trackListBox,
+        conjoinedGroupBox,
+      ],
+    };
+  },
+};