202410 en rss

src/components/pages/rss.ts

@@ -0,0 +1,57 @@
+import type { RSSFeedItem } from "@astrojs/rss";
+import getRssResponse from "@astrojs/rss";
+import remarkParse from "remark-parse";
+import { unified } from "unified";
+
+import { noticesWithIdReversed } from "@data/utils/notices";
+import { toHast } from "mdast-util-to-hast";
+import { toText } from "hast-util-to-text";
+import { select } from "hast-util-select";
+import type { Lang } from "@components/types";
+
+const parser = unified().use(remarkParse);
+
+interface RssParams {
+  title: string;
+  description: string;
+  url: URL;
+  lang: Lang;
+}
+
+export async function rss({ title, description, url, lang }: RssParams) {
+  const itemsMap = new Map<string, RSSFeedItem>();
+
+  for (const notice of noticesWithIdReversed) {
+    const content = notice.content[lang] ?? notice.content.ja;
+    if (!content) continue;
+
+    const mdast = parser.parse(content);
+    const hast = toHast(mdast);
+    const title = toText(hast);
+    const a = select("p > a:only-child[href]", hast);
+    const link =
+      a && toText(a) === title
+        ? (a.properties.href as string)
+        : `/notice/#${notice.id}`;
+    itemsMap.set(link, {
+      title,
+      link,
+      pubDate: new Date(notice.date),
+    });
+  }
+
+  return getRssResponse({
+    title,
+    description,
+    site: url.origin,
+    items: Array.from(itemsMap.values()).reverse(),
+    trailingSlash: false,
+    xmlns: {
+      atom: "http://www.w3.org/2005/Atom",
+    },
+    customData: [
+      "<language>ja-jp</language>",
+      `<atom:link href="${url}" rel="self" type="application/rss+xml" />`,
+    ].join(""),
+  });
+}

src/pages/en/index.mdx

@@ -1,6 +1,8 @@
 ---
 title: The Portal Site of Information Systems @ UTokyo
 top: true
+# temporary
+description: This website aims to provide one-stop information service about information systems in the University of Tokyo.
 toc: false
 sitemap: false
 ---

src/pages/en/notice/rss.xml.ts

@@ -0,0 +1,10 @@
+import type { APIContext } from "astro";
+// @ts-ignore
+import { frontmatter } from "../index.mdx";
+import { rss } from "@components/pages/rss";
+
+const { title, description } = frontmatter;
+
+export async function GET({ url }: APIContext) {
+  return rss({ title, description, url, lang: "en" });
+}

src/pages/notice/rss.xml.ts

@@ -1,51 +1,10 @@
-import rss, { type RSSFeedItem } from "@astrojs/rss";
-import type { Notice } from "@data/schemas/notice";
-import { unified } from "unified";
-import remarkParse from "remark-parse";
-import { toHast } from "mdast-util-to-hast";
-import { toText } from "hast-util-to-text";
-import { select } from "hast-util-select";
 import type { APIContext } from "astro";
 // @ts-ignore
 import { frontmatter } from "../index.mdx";
-import { noticesWithIdReversed } from "@data/utils/notices";
+import { rss } from "@components/pages/rss";
 
-const parser = unified().use(remarkParse);
+const { title, description } = frontmatter;
 
-export async function GET(context: APIContext) {
-  const itemsMap = new Map<string, RSSFeedItem>();
-
-  for (const notice of noticesWithIdReversed) {
-    if (!notice.content.ja) continue;
-
-    const mdast = parser.parse(notice.content.ja);
-    const hast = toHast(mdast);
-    const title = toText(hast);
-    const a = select("p > a:only-child[href]", hast);
-    const link =
-      a && toText(a) === title
-        ? (a.properties.href as string)
-        : `/notice/#${notice.id}`;
-    itemsMap.set(link, {
-      title,
-      link,
-      pubDate: new Date(notice.date),
-    });
-  }
-
-  const { title, description } = frontmatter;
-  return rss({
-    title,
-    description,
-    site: context.url.origin,
-    items: Array.from(itemsMap.values()).reverse(),
-    trailingSlash: false,
-    xmlns: {
-      atom: "http://www.w3.org/2005/Atom",
-    },
-    customData: [
-      "<language>ja-jp</language>",
-      `<atom:link href="${context.url}" rel="self" type="application/rss+xml" />`,
-    ].join(""),
-  });
+export async function GET({ url }: APIContext) {
+  return rss({ title, description, url, lang: "ja" });
 }