Improve RSS feed

Add cover image, tags, categories, modified date, etc

src/pages/rss.xml.ts

@@ -4,16 +4,41 @@ import relativeUrl from '../components/urlHelper.js';
 import { SITE_TITLE } from '../config.js';
 
 export async function GET(context) {
-  const blog = await getCollection('posts');
+  const blog = (await getCollection('posts')).sort((a, b) => Number(b.data.date) - Number(a.data.date))
+  return generateRssFromPosts(null, 'Collection and articles and texts of Hans5958.', context, blog)
+}
+
+export const generateRssFromPosts = (title, description, context, posts) => {
   return rss({
-    title: SITE_TITLE,
-    description: "Collection and articles and texts of Hans5958.",
+    title: title ?? SITE_TITLE,
+    description: description,
     site: context.site,
-    items: blog.sort((a, b) => Number(b.data.date) - Number(a.data.date)).map((post) => ({
-      title: post.data.title,
-      pubDate: post.data.date,
-      description: post.data.description,
-      link: relativeUrl('/' + post.slug),
-    })),
-  });
+    items: posts.map((post) => {
+      const customData: string[] = []
+
+      customData.push('<dc:creator><![CDATA[Hans5958]]></dc:creator>')
+
+      if (post.data.dateMod) {
+        customData.push(`<atom:updated>${new Date(post.data.dateMod).toISOString()}</atom:updated>`)
+      }
+
+      if (post.data.cover?.src) {
+        customData.push(`<media:thumbnail url="${post.data.cover?.src}" />`)
+      }
+
+      return {
+        title: post.data.title,
+        pubDate: post.data.date,
+        description: post.data.description,
+        link: relativeUrl('/' + post.slug),
+        categories: [post.data.category, ...post.data.tags],
+        customData: customData.join("")
+      }
+    }),
+    xmlns: {
+      dc: 'http://purl.org/dc/elements/1.1/',
+      atom: 'http://www.w3.org/2005/Atom',
+      media: 'http://search.yahoo.com/mrss/'
+    }
+  })
 }