Enable show less / more buttons for third party feeds (#8672)

Co-authored-by: hailey <hailey@blueskyweb.xyz>
Co-authored-by: Hailey <me@haileyok.com>

src/state/queries/feed.ts

@@ -48,6 +48,7 @@ export type FeedSourceFeedInfo = {
   creatorDid: string
   creatorHandle: string
   likeCount: number | undefined
+  acceptsInteractions?: boolean
   likeUri: string | undefined
   contentMode: AppBskyFeedDefs.GeneratorView['contentMode']
 }
@@ -73,6 +74,12 @@ export type FeedSourceListInfo = {
 
 export type FeedSourceInfo = FeedSourceFeedInfo | FeedSourceListInfo
 
+export function isFeedSourceFeedInfo(
+  feed: FeedSourceInfo,
+): feed is FeedSourceFeedInfo {
+  return feed.type === 'feed'
+}
+
 const feedSourceInfoQueryKeyRoot = 'getFeedSourceInfo'
 export const feedSourceInfoQueryKey = ({uri}: {uri: string}) => [
   feedSourceInfoQueryKeyRoot,
@@ -115,6 +122,7 @@ export function hydrateFeedGenerator(
     creatorDid: view.creator.did,
     creatorHandle: view.creator.handle,
     likeCount: view.likeCount,
+    acceptsInteractions: view.acceptsInteractions,
     likeUri: view.viewer?.like,
     contentMode: view.contentMode,
   }
@@ -619,6 +627,29 @@ export function useSavedFeeds() {
   })
 }
 
+const feedInfoQueryKeyRoot = 'feedInfo'
+
+export function useFeedInfo(feedUri: string | undefined) {
+  const agent = useAgent()
+
+  return useQuery({
+    staleTime: STALE.INFINITY,
+    queryKey: [feedInfoQueryKeyRoot, feedUri],
+    queryFn: async () => {
+      if (!feedUri) {
+        return undefined
+      }
+
+      const res = await agent.app.bsky.feed.getFeedGenerator({
+        feed: feedUri,
+      })
+
+      const feedSourceInfo = hydrateFeedGenerator(res.data.view)
+      return feedSourceInfo
+    },
+  })
+}
+
 function precacheFeed(queryClient: QueryClient, hydratedFeed: FeedSourceInfo) {
   precacheResolvedUri(
     queryClient,