Posts

lib/posts.ts

@@ -0,0 +1,47 @@
+import { extractYaml } from "@std/front-matter";
+import { join } from "@std/path";
+
+const POSTS_DIR = "./posts";
+
+// This is what gets parsed from the post front matter
+interface FrontMatter {
+  title: string;
+  published_at: string;
+  blurb: string;
+}
+
+// This is what gets used for rendering
+export interface Post {
+  slug: string;
+  title: string;
+  publishedAt: Date | null;
+  blurb: string;
+  content: string;
+}
+
+export async function getPost(slug: string): Promise<Post> {
+  const text = await Deno.readTextFile(join(POSTS_DIR, `${slug}.md`));
+  const { attrs, body } = extractYaml<FrontMatter>(text);
+  const post = {
+    slug,
+    title: attrs.title,
+    publishedAt: attrs.published_at ? new Date(attrs.published_at) : null,
+    blurb: attrs.blurb,
+    content: body,
+  };
+  return post;
+}
+
+export async function getPosts(): Promise<Post[]> {
+  const files = Deno.readDir(POSTS_DIR);
+  const promises = [];
+  for await (const file of files) {
+    if (file.name.startsWith(".")) continue;
+    const slug = file.name.replace(".md", "");
+    promises.push(getPost(slug));
+  }
+  const posts = (await Promise.all(promises) as Post[])
+    .filter((post) => post.publishedAt instanceof Date);
+  posts.sort((a, b) => b.publishedAt!.getTime() - a.publishedAt!.getTime());
+  return posts;
+}