Sort hidden replies to bottom

src/state/queries/post-thread.ts

@@ -4,6 +4,7 @@ import {
   AppBskyFeedDefs,
   AppBskyFeedGetPostThread,
   AppBskyFeedPost,
+  AppBskyFeedThreadgate,
   AtUri,
   ModerationDecision,
   ModerationOpts,
@@ -136,6 +137,7 @@ export function sortThread(
   node: ThreadNode,
   opts: UsePreferencesQueryResponse['threadViewPrefs'],
   modCache: ThreadModerationCache,
+  threadgateRecord?: AppBskyFeedThreadgate.Record,
 ): ThreadNode {
   if (node.type !== 'post') {
     return node
@@ -149,6 +151,23 @@ export function sortThread(
         return -1
       }
 
+      /*
+       * Hiding takes precendence over OP check below bc thread root author
+       * can't hide their own posts, therefore this only applies to other
+       * authors.
+       */
+      const aHidden = threadgateRecord?.hiddenReplies?.includes(a.uri)
+      const bHidden = threadgateRecord?.hiddenReplies?.includes(b.uri)
+      if (aHidden && !bHidden) {
+        return 1
+      } else if (bHidden && !aHidden) {
+        return -1
+      }
+
+      /*
+       * Here, OP is actually whatever node is highlighted in the thread view,
+       * NOT necessarily the root post of the thread, though it can be.
+       */
       const aIsByOp = a.post.author.did === node.post?.author.did
       const bIsByOp = b.post.author.did === node.post?.author.did
       if (aIsByOp && bIsByOp) {
@@ -195,7 +214,9 @@ export function sortThread(
       }
       return b.post.indexedAt.localeCompare(a.post.indexedAt)
     })
-    node.replies.forEach(reply => sortThread(reply, opts, modCache))
+    node.replies.forEach(reply =>
+      sortThread(reply, opts, modCache, threadgateRecord),
+    )
   }
   return node
 }

src/view/com/post-thread/PostThread.tsx

@@ -182,7 +182,12 @@ export function PostThread({
     if (!threadViewPrefs || !thread) return null
 
     return createThreadSkeleton(
-      sortThread(thread, threadViewPrefs, threadModerationCache),
+      sortThread(
+        thread,
+        threadViewPrefs,
+        threadModerationCache,
+        threadgateRecord ?? undefined,
+      ),
       hasSession,
       treeView,
       threadModerationCache,