Starter Packs (#4332)

Co-authored-by: Dan Abramov <dan.abramov@gmail.com>
Co-authored-by: Paul Frazee <pfrazee@gmail.com>
Co-authored-by: Eric Bailey <git@esb.lol>
Co-authored-by: Samuel Newman <mozzius@protonmail.com>

src/lib/strings/starter-pack.ts

@@ -0,0 +1,101 @@
+import {AppBskyGraphDefs, AtUri} from '@atproto/api'
+
+export function createStarterPackLinkFromAndroidReferrer(
+  referrerQueryString: string,
+): string | null {
+  try {
+    // The referrer string is just some URL parameters, so lets add them to a fake URL
+    const url = new URL('http://throwaway.com/?' + referrerQueryString)
+    const utmContent = url.searchParams.get('utm_content')
+    const utmSource = url.searchParams.get('utm_source')
+
+    if (!utmContent) return null
+    if (utmSource !== 'bluesky') return null
+
+    // This should be a string like `starterpack_haileyok.com_rkey`
+    const contentParts = utmContent.split('_')
+
+    if (contentParts[0] !== 'starterpack') return null
+    if (contentParts.length !== 3) return null
+
+    return `at://${contentParts[1]}/app.bsky.graph.starterpack/${contentParts[2]}`
+  } catch (e) {
+    return null
+  }
+}
+
+export function parseStarterPackUri(uri?: string): {
+  name: string
+  rkey: string
+} | null {
+  if (!uri) return null
+
+  try {
+    if (uri.startsWith('at://')) {
+      const atUri = new AtUri(uri)
+      if (atUri.collection !== 'app.bsky.graph.starterpack') return null
+      if (atUri.rkey) {
+        return {
+          name: atUri.hostname,
+          rkey: atUri.rkey,
+        }
+      }
+      return null
+    } else {
+      const url = new URL(uri)
+      const parts = url.pathname.split('/')
+      const [_, path, name, rkey] = parts
+
+      if (parts.length !== 4) return null
+      if (path !== 'starter-pack' && path !== 'start') return null
+      if (!name || !rkey) return null
+      return {
+        name,
+        rkey,
+      }
+    }
+  } catch (e) {
+    return null
+  }
+}
+
+export function createStarterPackGooglePlayUri(
+  name: string,
+  rkey: string,
+): string | null {
+  if (!name || !rkey) return null
+  return `https://play.google.com/store/apps/details?id=xyz.blueskyweb.app&referrer=utm_source%3Dbluesky%26utm_medium%3Dstarterpack%26utm_content%3Dstarterpack_${name}_${rkey}`
+}
+
+export function httpStarterPackUriToAtUri(httpUri?: string): string | null {
+  if (!httpUri) return null
+
+  const parsed = parseStarterPackUri(httpUri)
+  if (!parsed) return null
+
+  if (httpUri.startsWith('at://')) return httpUri
+
+  return `at://${parsed.name}/app.bsky.graph.starterpack/${parsed.rkey}`
+}
+
+export function getStarterPackOgCard(
+  didOrStarterPack: AppBskyGraphDefs.StarterPackView | string,
+  rkey?: string,
+) {
+  if (typeof didOrStarterPack === 'string') {
+    return `https://ogcard.cdn.bsky.app/start/${didOrStarterPack}/${rkey}`
+  } else {
+    const rkey = new AtUri(didOrStarterPack.uri).rkey
+    return `https://ogcard.cdn.bsky.app/start/${didOrStarterPack.creator.did}/${rkey}`
+  }
+}
+
+export function createStarterPackUri({
+  did,
+  rkey,
+}: {
+  did: string
+  rkey: string
+}): string | null {
+  return new AtUri(`at://${did}/app.bsky.graph.starterpack/${rkey}`).toString()
+}