Add lib file

lib/events.ts

@@ -0,0 +1,60 @@
+import fs from "fs/promises";
+import path from "path";
+import matter from "gray-matter";
+import { serialize } from "next-mdx-remote/serialize";
+import { MDXRemoteSerializeResult } from "next-mdx-remote";
+
+const EVENTS_PATH = path.join("content", "events");
+
+export async function getYears(): Promise<string[]> {
+  return await fs.readdir(EVENTS_PATH);
+}
+
+export async function getTermsByYear(year: string): Promise<string[]> {
+  return await fs.readdir(path.join(EVENTS_PATH, year));
+}
+
+interface Metadata {
+  name: string;
+  short: string;
+  date: string;
+  online: boolean;
+  location: string;
+}
+
+export interface Event {
+  content: string | MDXRemoteSerializeResult<Record<string, unknown>>;
+  metadata: Metadata;
+}
+
+export async function getEventBySlug(
+  year: string,
+  term: string,
+  slug: string,
+  convert = true
+): Promise<Event> {
+  const raw = await fs.readFile(
+    path.join(EVENTS_PATH, year, term, `${slug}.event.md`),
+    "utf-8"
+  );
+  const { content, data: metadata } = matter(raw);
+
+  return {
+    content: convert ? await serialize(content) : content,
+    metadata: metadata as Metadata,
+  };
+}
+
+export async function getEventsByTerm(
+  year: string,
+  term: string
+): Promise<Event[]> {
+  const files = (await fs.readdir(path.join(EVENTS_PATH, year, term)))
+    .filter((name) => name.endsWith(".event.md"))
+    .map((name) => name.slice(0, -".event.md".length));
+
+  const props = await Promise.all(
+    files.map((file) => getEventBySlug(year, term, file))
+  );
+  return props;
+}