content: stub track page, misc. other changes

* generateContributionLinks replaced with linkContribution,
  tests still need updating

* album pages respect albums without cover art

* track pages without unique art inherit art tags from album
  (fixes #13)

not heavily tested, this commit probably breaks some pages
which were loading correctly before

1 files changed, 74 insertions, 0 deletions

diff --git a/src/content/dependencies/linkContribution.js b/src/content/dependencies/linkContribution.js
new file mode 100644
index 0000000..1d0e2d6
--- /dev/null
+++ b/src/content/dependencies/linkContribution.js
@@ -0,0 +1,74 @@
+import {empty} from '../../util/sugar.js';
+
+export default {
+  contentDependencies: [
+    'linkArtist',
+    'linkExternalAsIcon',
+  ],
+
+  extraDependencies: [
+    'html',
+    'language',
+  ],
+
+  relations(relation, artist) {
+    const relations = {};
+
+    relations.artistLink = relation('linkArtist', artist);
+
+    relations.artistIcons =
+      (artist.urls ?? []).map(url =>
+        relation('linkExternalAsIcon', url));
+
+    return relations;
+  },
+
+  data(artist, contribution) {
+    return {contribution};
+  },
+
+  generate(data, relations, {
+    html,
+    language,
+  }) {
+    return html.template({
+      annotation: 'linkContribution',
+
+      slots: {
+        showContribution: {type: 'boolean', default: false},
+        showIcons: {type: 'boolean', default: false},
+      },
+
+      content(slots) {
+        const hasContributionPart = !!(slots.showContribution && data.contribution);
+        const hasExternalPart = !!(slots.showIcons && !empty(relations.artistIcons));
+
+        const externalLinks = hasExternalPart &&
+          html.tag('span',
+            {[html.noEdgeWhitespace]: true, class: 'icons'},
+            language.formatUnitList(relations.artistIcons));
+
+        return (
+          (hasContributionPart
+            ? (hasExternalPart
+                ? language.$('misc.artistLink.withContribution.withExternalLinks', {
+                    artist: relations.artistLink,
+                    contrib: data.contribution,
+                    links: externalLinks,
+                  })
+                : language.$('misc.artistLink.withContribution', {
+                    artist: relations.artistLink,
+                    contrib: data.contribution,
+                  }))
+            : (hasExternalPart
+                ? language.$('misc.artistLink.withExternalLinks', {
+                    artist: relations.artistLink,
+                    links: externalLinks,
+                  })
+                : language.$('misc.artistLink', {
+                    artist: relations.artistLink,
+                  }))));
+      },
+    });
+  },
+};