Send Bluesky feeds and suggested follows more data (#3695)

* WIP

* Fix constructors

* Clean up

* Tweak

* Rm extra assignment

* Narrow down the argument

---------

Co-authored-by: Dan Abramov <dan.abramov@gmail.com>

2 files changed, 36 insertions, 9 deletions

diff --git a/src/state/queries/post-feed.ts b/src/state/queries/post-feed.ts
index 747dba02e..c265cecd6 100644
--- a/src/state/queries/post-feed.ts
+++ b/src/state/queries/post-feed.ts
@@ -15,6 +15,7 @@ import {
 } from '@tanstack/react-query'
 
 import {HomeFeedAPI} from '#/lib/api/feed/home'
+import {aggregateUserInterests} from '#/lib/api/feed/utils'
 import {moderatePost_wrapped as moderatePost} from '#/lib/moderatePost_wrapped'
 import {logger} from '#/logger'
 import {STALE} from '#/state/queries'
@@ -31,7 +32,7 @@ import {FeedTuner, FeedTunerFn, NoopFeedTuner} from 'lib/api/feed-manip'
 import {BSKY_FEED_OWNER_DIDS} from 'lib/constants'
 import {KnownError} from '#/view/com/posts/FeedErrorMessage'
 import {useFeedTuners} from '../preferences/feed-tuners'
-import {useModerationOpts} from './preferences'
+import {useModerationOpts, usePreferencesQuery} from './preferences'
 import {embedViewRecordToPostView, getEmbeddedPost} from './util'
 
 type ActorDid = string
@@ -102,8 +103,11 @@ export function usePostFeedQuery(
 ) {
   const feedTuners = useFeedTuners(feedDesc)
   const moderationOpts = useModerationOpts()
+  const {data: preferences} = usePreferencesQuery()
+  const enabled =
+    opts?.enabled !== false && Boolean(moderationOpts) && Boolean(preferences)
+  const userInterests = aggregateUserInterests(preferences)
   const {getAgent} = useAgent()
-  const enabled = opts?.enabled !== false && Boolean(moderationOpts)
   const lastRun = useRef<{
     data: InfiniteData<FeedPageUnselected>
     args: typeof selectArgs
@@ -141,6 +145,7 @@ export function usePostFeedQuery(
               feedDesc,
               feedParams: params || {},
               feedTuners,
+              userInterests, // Not in the query key because they don't change.
               getAgent,
             }),
             cursor: undefined,
@@ -371,11 +376,13 @@ function createApi({
   feedDesc,
   feedParams,
   feedTuners,
+  userInterests,
   getAgent,
 }: {
   feedDesc: FeedDescriptor
   feedParams: FeedParams
   feedTuners: FeedTunerFn[]
+  userInterests?: string
   getAgent: () => BskyAgent
 }) {
   if (feedDesc === 'home') {
@@ -384,9 +391,10 @@ function createApi({
         getAgent,
         feedParams,
         feedTuners,
+        userInterests,
       })
     } else {
-      return new HomeFeedAPI({getAgent})
+      return new HomeFeedAPI({getAgent, userInterests})
     }
   } else if (feedDesc === 'following') {
     return new FollowingFeedAPI({getAgent})
@@ -401,6 +409,7 @@ function createApi({
     return new CustomFeedAPI({
       getAgent,
       feedParams: {feed},
+      userInterests,
     })
   } else if (feedDesc.startsWith('list')) {
     const [_, list] = feedDesc.split('|')
diff --git a/src/state/queries/suggested-follows.ts b/src/state/queries/suggested-follows.ts
index 936912ab3..3338130f4 100644
--- a/src/state/queries/suggested-follows.ts
+++ b/src/state/queries/suggested-follows.ts
@@ -12,8 +12,16 @@ import {
   useQuery,
 } from '@tanstack/react-query'
 
+import {
+  aggregateUserInterests,
+  createBskyTopicsHeader,
+} from '#/lib/api/feed/utils'
+import {getContentLanguages} from '#/state/preferences/languages'
 import {STALE} from '#/state/queries'
-import {useModerationOpts} from '#/state/queries/preferences'
+import {
+  useModerationOpts,
+  usePreferencesQuery,
+} from '#/state/queries/preferences'
 import {useAgent, useSession} from '#/state/session'
 
 const suggestedFollowsQueryKeyRoot = 'suggested-follows'
@@ -29,6 +37,7 @@ export function useSuggestedFollowsQuery() {
   const {currentAccount} = useSession()
   const {getAgent} = useAgent()
   const moderationOpts = useModerationOpts()
+  const {data: preferences} = usePreferencesQuery()
 
   return useInfiniteQuery<
     AppBskyActorGetSuggestions.OutputSchema,
@@ -37,14 +46,23 @@ export function useSuggestedFollowsQuery() {
     QueryKey,
     string | undefined
   >({
-    enabled: !!moderationOpts,
+    enabled: !!moderationOpts && !!preferences,
     staleTime: STALE.HOURS.ONE,
     queryKey: suggestedFollowsQueryKey,
     queryFn: async ({pageParam}) => {
-      const res = await getAgent().app.bsky.actor.getSuggestions({
-        limit: 25,
-        cursor: pageParam,
-      })
+      const contentLangs = getContentLanguages().join(',')
+      const res = await getAgent().app.bsky.actor.getSuggestions(
+        {
+          limit: 25,
+          cursor: pageParam,
+        },
+        {
+          headers: {
+            ...createBskyTopicsHeader(aggregateUserInterests(preferences)),
+            'Accept-Language': contentLangs,
+          },
+        },
+      )
 
       res.data.actors = res.data.actors
         .filter(