1 files changed, 61 insertions, 27 deletions

diff --git a/index.ts b/index.ts
index 13b6e9f..16d0db7 100644
--- a/index.ts
+++ b/index.ts
@@ -2,8 +2,6 @@ import showdown from "showdown";
 import yaml from "yaml";
 import { promises as fs } from "fs";
 
-const posts = await fs.readdir("posts");
-
 function splitPostHeader(postData: string): [string, string] {
   if (postData.startsWith("---\n")) {
     const headerEndIndex = postData.indexOf("\n---\n", 4);
@@ -16,8 +14,6 @@ function splitPostHeader(postData: string): [string, string] {
   return ["", postData];
 }
 
-await fs.rm("build", { recursive: true });
-await fs.mkdir("build");
 declare interface PostMetadata {
   name: string;
   unlisted?: boolean;
@@ -25,31 +21,69 @@ declare interface PostMetadata {
   description?: string;
 }
 
+declare interface PostEntry {
+  name: string;
+  id: string;
+  description: string | null;
+}
+
 const baseTemplate = await fs.readFile("template.html", { encoding: "utf-8" });
+class PostCollector {
+  allPosts: PostEntry[] = [];
+  makeHtmlForPost(postMetadata: PostMetadata, markdown: string): string {
+    const converter = new showdown.Converter();
+    const htmlPostBody = converter.makeHtml(markdown);
+    const variables = {
+      postBody: htmlPostBody,
+      title: postMetadata.name,
+    };
+    return baseTemplate.replace(
+      /%([a-zA-Z]+)%/g,
+      (_, match) => variables[match] ?? `Missing variable: ${match}`,
+    );
+  }
 
-function makeHtmlForPost(postMetadata: PostMetadata, markdown: string): string {
-  const converter = new showdown.Converter();
-  const htmlPostBody = converter.makeHtml(markdown);
-  const variables = {
-    postBody: htmlPostBody,
-    title: postMetadata.name,
-  };
-  return baseTemplate.replace(
-    /%([a-zA-Z]+)%/g,
-    (_, match) => variables[match] ?? `Missing variable: ${match}`,
-  );
-}
+  async run() {
+    await fs.rm("build", { recursive: true });
+    await fs.mkdir("build");
+    await fs.mkdir("build/posts");
 
-for (let postPath of posts) {
-  const totalPostPath = `posts/${postPath}`;
-  if (!postPath.endsWith(".md")) {
-    await fs.copyFile(totalPostPath, `build/${postPath}`);
-    continue;
+    const posts = await fs.readdir("posts");
+    for (let postPath of posts) {
+      const totalPostPath = `posts/${postPath}`;
+      if (!postPath.endsWith(".md")) {
+        await fs.copyFile(totalPostPath, `build/posts/${postPath}`);
+        continue;
+      }
+      const postId = postPath.replace(".md", "");
+      const postText = await fs.readFile(totalPostPath, { encoding: "utf-8" });
+      const [postHeader, postBody] = splitPostHeader(postText);
+      const postMetadata = yaml.parse(postHeader) as PostMetadata;
+      const postHtml = this.makeHtmlForPost(postMetadata, postBody);
+      const targetPath = `build/posts/${postId}.html`;
+      await fs.writeFile(targetPath, postHtml, { encoding: "utf-8" });
+      if (!postMetadata.unlisted)
+        this.allPosts.push({
+          name: postMetadata.name,
+          id: postId,
+          description: postMetadata.description ?? null,
+        });
+    }
+    await fs.writeFile(
+      "build/posts/index.html",
+      this.makeHtmlForPost(
+        { name: "Post Index" },
+        "# Post List\n" +
+          this.allPosts
+            .map(
+              (post) =>
+                `## [${post.name}](./${post.id}.html)\n\n${post.description ?? ""}`,
+            )
+            .join("\n"),
+      ),
+      { encoding: "utf-8" },
+    );
   }
-  const postText = await fs.readFile(totalPostPath, { encoding: "utf-8" });
-  const [postHeader, postBody] = splitPostHeader(postText);
-  const postMetadata = yaml.parse(postHeader) as PostMetadata;
-  const postHtml = makeHtmlForPost(postMetadata, postBody);
-  const targetPath = `build/${postPath.replace(".md", ".html")}`;
-  fs.writeFile(targetPath, postHtml, { encoding: "utf-8" });
 }
+
+await new PostCollector().run();