fedimbed.bluesky: facet support

src/modules/fedimbed.js

@@ -238,6 +238,42 @@ async function bluesky(msg, url, spoiler = false) {
     timestamp: post.record.createdAt,
   };
 
+  if (post.record.facets?.length > 0) {
+    for (const facet of post.record.facets) {
+      let replacement = mainEmbed.description.substring(facet.index.byteStart, facet.index.byteEnd);
+      const original = replacement;
+
+      for (const feature of facet.features) {
+        switch (feature.$type) {
+          case "app.bsky.richtext.facet#link": {
+            if (replacement == feature.uri.replace(/^https?:\/\//, "")) {
+              replacement = feature.uri;
+            } else {
+              replacement = `[${replacement}](${feature.uri})`;
+            }
+            break;
+          }
+          case "app.bsky.richtext.facet#mention": {
+            replacement = `[${replacement}](https://bsky.app/profile/${feature.did})`;
+            break;
+          }
+          case "app.bsky.richtext.facet#tag": {
+            replacement = `[${replacement}](https://bsky.app/hashtag/${feature.tag})`;
+            break;
+          }
+          default:
+            break;
+        }
+      }
+
+      if (replacement !== original)
+        mainEmbed.description = `${mainEmbed.description.substring(
+          0,
+          facet.index.byteStart
+        )}${replacement}${mainEmbed.description.substring(facet.index.byteEnd)}`;
+    }
+  }
+
   if (data.thread.parent) {
     const reply = data.thread.parent.post;
     mainEmbed.author = {