feat: support itunes rss

src/lib/expand-unit.ts

@@ -19,6 +19,7 @@ export const expandUnidataNote = async (page: Note, useStat?: boolean) => {
       }
     }
     page.cover = rendered.cover
+    page.audio = rendered.audio
     if (page.metadata) {
       page.metadata.frontMatter = rendered.frontMatter
     }

src/lib/json-feed.ts

@@ -20,6 +20,8 @@ export const getJsonFeed = async (domainOrSubdomain: string, path: string) => {
     queryClient,
   )
 
+  const hasAudio = pages.list?.find((page: any) => page.audio)
+
   const link = getSiteLink({
     subdomain: site.username || "",
   })
@@ -30,6 +32,13 @@ export const getJsonFeed = async (domainOrSubdomain: string, path: string) => {
     icon: site.avatars?.[0],
     home_page_url: link,
     feed_url: `${link}${path}`,
+    ...(hasAudio && {
+      _itunes: {
+        image: site.avatars?.[0],
+        author: site.name,
+        summary: site.description,
+      },
+    }),
     items: pages.list?.map((page: any) => ({
       id: page.id,
       title: page.title,
@@ -38,10 +47,24 @@ export const getJsonFeed = async (domainOrSubdomain: string, path: string) => {
         renderPageContent(page.body?.content, true).contentHTML,
       summary: page.summary?.content,
       url: `${link}/${page.slug || page.id}`,
-      image: `${link}${page.cover}`,
+      image: page.cover,
       date_published: page.date_published,
       date_modified: page.date_updated,
       tags: page.tags,
+      author: site.name,
+      ...(page.audio && {
+        _itunes: {
+          image: page.cover,
+          summary: page.summary?.content,
+        },
+        attachments: [
+          {
+            url: page.audio,
+            mime_type: "audio/mpeg",
+            title: page.title,
+          },
+        ],
+      }),
     })),
   }
 }

src/lib/types.ts

@@ -79,6 +79,7 @@ export type Note = UniNote & {
   slug?: string
   character?: Profile
   cover?: string
+  audio?: string
   body?: {
     content?: string
     address?: string

src/markdown/index.ts

@@ -44,6 +44,7 @@ export type MarkdownEnv = {
   frontMatter: Record<string, any>
   __internal: Record<string, any>
   cover: string
+  audio: string
   toc: TocResult | null
   tree: Root | null
 }
@@ -54,6 +55,7 @@ export type Rendered = {
   excerpt: string
   frontMatter: Record<string, any>
   cover: string
+  audio: string
   toc: TocResult | null
   tree: Root | null
 }
@@ -71,6 +73,7 @@ export const renderPageContent = (
     __internal: {},
     frontMatter: {},
     cover: "",
+    audio: "",
     toc: null,
     tree: null,
   }
@@ -113,7 +116,7 @@ export const renderPageContent = (
       .use(rehypeStringify)
       .use(rehypeRaw)
       .use(rehypeImage, { env })
-      .use(rehypeAudio)
+      .use(rehypeAudio, { env })
       .use(rehypeSlug)
       .use(rehypeAutolinkHeadings, {
         properties: {
@@ -211,6 +214,7 @@ export const renderPageContent = (
     excerpt: result?.data.meta.description,
     frontMatter: env.frontMatter,
     cover: env.cover,
+    audio: env.audio,
     toc: env.toc,
     tree: env.tree,
   }

src/markdown/rehype-audio.ts

@@ -4,8 +4,13 @@ import { visit } from "unist-util-visit"
 
 import { toGateway } from "~/lib/ipfs-parser"
 
-export const rehypeAudio: Plugin<Array<void>, Root> = () => {
+import { MarkdownEnv } from "."
+
+export const rehypeAudio: Plugin<Array<{ env: MarkdownEnv }>, Root> = ({
+  env,
+}) => {
   return (tree) => {
+    let first = true
     visit(tree, { tagName: "audio" }, (node, i, parent) => {
       if (!node.properties) {
         return
@@ -19,6 +24,11 @@ export const rehypeAudio: Plugin<Array<void>, Root> = () => {
 
       node.properties.src = toGateway(src)
 
+      if (first) {
+        env.audio = node.properties.src
+        first = false
+      }
+
       if (parent) {
         parent.children[i!] = {
           type: "element",