feat: add stacked public notes

src/modules/atproto/getAka.ts

@@ -2,8 +2,6 @@ export type Author = { alias: string; endpoint: string }
 
 const correspondanceCache = new Map<string, Author>()
 
-console.log({ correspondanceCache })
-
 export const getUniqueAka = async (did: string): Promise<Author> => {
   if (correspondanceCache.has(did)) {
     return correspondanceCache.get(did) as Author

src/modules/atproto/parseAtUri.ts

@@ -0,0 +1,7 @@
+export const parseAtUri = (atUri: string): { did: string; rkey: string } => {
+  const match = atUri.match(/^at:\/\/(did:[^/]+)\/[^/]+\/(.+)$/)
+  if (!match) {
+    throw new Error(`Invalid AT URI: ${atUri}`)
+  }
+  return { did: match[1], rkey: match[2] }
+}

src/modules/atproto/publicNote.types.ts

@@ -0,0 +1,29 @@
+export interface PublicNoteRecord {
+  uri: string
+  cid: string
+  value: PublicNote
+}
+
+export interface PublicNote {
+  $type: string
+  title: string
+  images: PublicNoteImage[]
+  content: string
+  createdAt: string
+  publishedAt: string
+  theme?: string
+  fontFamily?: string
+  fontSize?: string
+}
+
+export interface PublicNoteImage {
+  alt: string
+  image: PublicNoteBlob
+}
+
+export interface PublicNoteBlob {
+  $type: string
+  ref: { $link: string }
+  mimeType: string
+  size: number
+}

src/modules/atproto/withATProtoImages.ts

@@ -0,0 +1,13 @@
+export const withATProtoImages = (
+  markdown: string,
+  { endpoint, did }: { endpoint: string; did: string },
+): string => {
+  const imageLinkPattern = /!\[([^\]]*)\]\((bafkrei[a-z0-9]+)\)/g
+
+  return markdown.replace(imageLinkPattern, (_, altText, cid) => {
+    const imageUrl = new URL("/xrpc/com.atproto.sync.getBlob", endpoint)
+    imageUrl.searchParams.set("did", did)
+    imageUrl.searchParams.set("cid", cid)
+    return `![${altText}](${imageUrl.toString()})`
+  })
+}