refactor note processing functions

lib/helpers/build-feed.ts

@@ -1,13 +1,16 @@
 import { cache } from "react";
 import { Feed } from "feed";
-import { getAllPosts, getPostContent } from "./posts";
+import { getFrontMatter, getContent } from "./posts";
 import * as config from "../config";
 import { BASE_URL } from "../config/constants";
 
 import ogImage from "../../app/opengraph-image.jpg";
 
+/**
+ * Returns a `Feed` object, which can then be processed with `feed.rss2()`, `feed.atom1()`, or `feed.json1()`.
+ * @see https://github.com/jpmonette/feed#example
+ */
 export const buildFeed = cache(async (): Promise<Feed> => {
-  // https://github.com/jpmonette/feed#example
   const feed = new Feed({
     id: BASE_URL,
     link: BASE_URL,
@@ -28,8 +31,8 @@ export const buildFeed = cache(async (): Promise<Feed> => {
   });
 
   // add posts separately using their frontmatter
-  const posts = await getAllPosts();
-  for (const post of posts.reverse()) {
+  const posts = await getFrontMatter();
+  for (const post of posts) {
     feed.addItem({
       guid: post.permalink,
       link: post.permalink,
@@ -42,7 +45,10 @@ export const buildFeed = cache(async (): Promise<Feed> => {
         },
       ],
       date: new Date(post.date),
-      content: `${await getPostContent(post.slug)}\n\n<p><a href="${post.permalink}"><strong>Continue reading...</strong></a></p>`,
+      content: `
+        ${await getContent(post.slug)}
+        <p><a href="${post.permalink}"><strong>Continue reading...</strong></a></p>
+      `.trim(),
     });
   }