Rewrite the shadow logic to look inside the cache (#2045)

* Reset

* Associate shadows with the cache

* Use colocated helpers

* Fix types

* Reorder for clarity

* More types

* Copy paste logic for profile

* Hook up profile query

* Hook up suggested follows

* Hook up other profile things

* Fix shape

* Pass setShadow into the effect deps

* Include reply posts in the shadow cache search

---------

Co-authored-by: Paul Frazee <pfrazee@gmail.com>

src/state/queries/post-thread.ts

@@ -88,7 +88,7 @@ export function usePostThreadQuery(uri: string | undefined) {
       {
         const item = findPostInFeedQueryData(queryClient, uri)
         if (item) {
-          return feedViewPostToPlaceholderThread(item)
+          return postViewToPlaceholderThread(item)
         }
       }
       {
@@ -213,6 +213,19 @@ function findPostInQueryData(
   queryClient: QueryClient,
   uri: string,
 ): ThreadNode | undefined {
+  const generator = findAllPostsInQueryData(queryClient, uri)
+  const result = generator.next()
+  if (result.done) {
+    return undefined
+  } else {
+    return result.value
+  }
+}
+
+export function* findAllPostsInQueryData(
+  queryClient: QueryClient,
+  uri: string,
+): Generator<ThreadNode, void> {
   const queryDatas = queryClient.getQueriesData<ThreadNode>({
     queryKey: ['post-thread'],
   })
@@ -222,11 +235,10 @@ function findPostInQueryData(
     }
     for (const item of traverseThread(queryData)) {
       if (item.uri === uri) {
-        return item
+        yield item
       }
     }
   }
-  return undefined
 }
 
 function* traverseThread(node: ThreadNode): Generator<ThreadNode, void> {
@@ -270,30 +282,6 @@ function threadNodeToPlaceholderThread(
   }
 }
 
-function feedViewPostToPlaceholderThread(
-  item: AppBskyFeedDefs.FeedViewPost,
-): ThreadNode {
-  return {
-    type: 'post',
-    _reactKey: item.post.uri,
-    uri: item.post.uri,
-    post: item.post,
-    record: item.post.record as AppBskyFeedPost.Record, // validated in post-feed
-    parent: undefined,
-    replies: undefined,
-    viewer: item.post.viewer,
-    ctx: {
-      depth: 0,
-      isHighlightedPost: true,
-      hasMore: false,
-      showChildReplyLine: false,
-      showParentReplyLine: false,
-      isParentLoading: !!(item.post.record as AppBskyFeedPost.Record).reply,
-      isChildLoading: !!item.post.replyCount,
-    },
-  }
-}
-
 function postViewToPlaceholderThread(
   post: AppBskyFeedDefs.PostView,
 ): ThreadNode {