Fix sloppy filter(Boolean) types (#4830)

* Fix sloppy filter(Boolean) in threadgate

* Fix sloppy filter(Boolean) in Explore

* Fix sloppy filter(Boolean) in post-feed

* Harden FeedPostSliceItem.reason type def

* Harden parentAuthor types

* Fix lying component types, handle blocks

src/state/queries/post-feed.ts

@@ -78,7 +78,10 @@ export interface FeedPostSliceItem {
   uri: string
   post: AppBskyFeedDefs.PostView
   record: AppBskyFeedPost.Record
-  reason?: AppBskyFeedDefs.ReasonRepost | ReasonFeedSource
+  reason?:
+    | AppBskyFeedDefs.ReasonRepost
+    | ReasonFeedSource
+    | {[k: string]: unknown; $type: string}
   feedContext: string | undefined
   moderation: ModerationDecision
   parentAuthor?: AppBskyActorDefs.ProfileViewBasic
@@ -323,7 +326,7 @@ export function usePostFeedQuery(
                     )
                   }
 
-                  return {
+                  const feedPostSlice: FeedPostSlice = {
                     _reactKey: slice._reactKey,
                     _isFeedPostSlice: true,
                     rootUri: slice.rootItem.post.uri,
@@ -341,15 +344,23 @@ export function usePostFeedQuery(
                           AppBskyFeedPost.validateRecord(item.post.record)
                             .success
                         ) {
-                          const parentAuthor =
-                            item.reply?.parent?.author ??
+                          const parent = item.reply?.parent
+                          let parentAuthor:
+                            | AppBskyActorDefs.ProfileViewBasic
+                            | undefined
+                          if (AppBskyFeedDefs.isPostView(parent)) {
+                            parentAuthor = parent.author
+                          }
+                          if (!parentAuthor) {
+                            parentAuthor =
                               slice.items[i + 1]?.reply?.grandparentAuthor
+                          }
                           const replyRef = item.reply
                           const isParentBlocked = AppBskyFeedDefs.isBlockedPost(
                             replyRef?.parent,
                           )
 
-                          return {
+                          const feedPostSliceItem: FeedPostSliceItem = {
                             _reactKey: `${slice._reactKey}-${i}-${item.post.uri}`,
                             uri: item.post.uri,
                             post: item.post,
@@ -363,13 +374,15 @@ export function usePostFeedQuery(
                             parentAuthor,
                             isParentBlocked,
                           }
+                          return feedPostSliceItem
                         }
                         return undefined
                       })
-                      .filter(Boolean) as FeedPostSliceItem[],
+                      .filter(<T>(n?: T): n is T => Boolean(n)),
                   }
+                  return feedPostSlice
                 })
-                .filter(Boolean) as FeedPostSlice[],
+                .filter(<T>(n?: T): n is T => Boolean(n)),
             })),
           ],
         }

src/state/queries/threadgate.ts

@@ -4,7 +4,7 @@ export type ThreadgateSetting =
   | {type: 'nobody'}
   | {type: 'mention'}
   | {type: 'following'}
-  | {type: 'list'; list: string}
+  | {type: 'list'; list: unknown}
 
 export function threadgateViewToSettings(
   threadgate: AppBskyFeedDefs.ThreadgateView | undefined,
@@ -21,18 +21,18 @@ export function threadgateViewToSettings(
   if (!record.allow?.length) {
     return [{type: 'nobody'}]
   }
-  return record.allow
+  const settings: ThreadgateSetting[] = record.allow
     .map(allow => {
+      let setting: ThreadgateSetting | undefined
       if (allow.$type === 'app.bsky.feed.threadgate#mentionRule') {
-        return {type: 'mention'}
+        setting = {type: 'mention'}
+      } else if (allow.$type === 'app.bsky.feed.threadgate#followingRule') {
+        setting = {type: 'following'}
+      } else if (allow.$type === 'app.bsky.feed.threadgate#listRule') {
+        setting = {type: 'list', list: allow.list}
       }
-      if (allow.$type === 'app.bsky.feed.threadgate#followingRule') {
-        return {type: 'following'}
-      }
-      if (allow.$type === 'app.bsky.feed.threadgate#listRule') {
-        return {type: 'list', list: allow.list}
-      }
-      return undefined
+      return setting
     })
-    .filter(Boolean) as ThreadgateSetting[]
+    .filter(<T>(n?: T): n is T => Boolean(n))
+  return settings
 }

src/view/com/posts/FeedItem.tsx

@@ -48,7 +48,11 @@ import {Repost_Stroke2_Corner2_Rounded as Repost} from '#/components/icons/Repos
 
 interface FeedItemProps {
   record: AppBskyFeedPost.Record
-  reason: AppBskyFeedDefs.ReasonRepost | ReasonFeedSource | undefined
+  reason:
+    | AppBskyFeedDefs.ReasonRepost
+    | ReasonFeedSource
+    | {[k: string]: unknown; $type: string}
+    | undefined
   moderation: ModerationDecision
   parentAuthor: AppBskyActorDefs.ProfileViewBasic | undefined
   showReplyTo: boolean
@@ -337,7 +341,9 @@ let FeedItemInner = ({
             postHref={href}
             onOpenAuthor={onOpenAuthor}
           />
-          {!isThreadChild && showReplyTo && parentAuthor && (
+          {!isThreadChild &&
+            showReplyTo &&
+            (parentAuthor || isParentBlocked) && (
               <ReplyToLabel blocked={isParentBlocked} profile={parentAuthor} />
             )}
           <LabelsOnMyPost post={post} />
@@ -431,30 +437,21 @@ function ReplyToLabel({
   profile,
   blocked,
 }: {
-  profile: AppBskyActorDefs.ProfileViewBasic
+  profile: AppBskyActorDefs.ProfileViewBasic | undefined
   blocked?: boolean
 }) {
   const pal = usePalette('default')
   const {currentAccount} = useSession()
-  const isMe = profile.did === currentAccount?.did
 
-  return (
-    <View style={[s.flexRow, s.mb2, s.alignCenter]}>
-      <FontAwesomeIcon
-        icon="reply"
-        size={9}
-        style={[{color: pal.colors.textLight} as FontAwesomeIconStyle, s.mr5]}
-      />
-      <Text
-        type="md"
-        style={[pal.textLight, s.mr2]}
-        lineHeight={1.2}
-        numberOfLines={1}>
-        {isMe ? (
-          <Trans context="description">Reply to you</Trans>
-        ) : blocked ? (
-          <Trans context="description">Reply to a blocked post</Trans>
-        ) : (
+  let label
+  if (blocked) {
+    label = <Trans context="description">Reply to a blocked post</Trans>
+  } else if (profile != null) {
+    const isMe = profile.did === currentAccount?.did
+    if (isMe) {
+      label = <Trans context="description">Reply to you</Trans>
+    } else {
+      label = (
         <Trans context="description">
           Reply to{' '}
           <ProfileHoverCard inline did={profile.did}>
@@ -472,7 +469,28 @@ function ReplyToLabel({
             />
           </ProfileHoverCard>
         </Trans>
-        )}
+      )
+    }
+  }
+
+  if (!label) {
+    // Should not happen.
+    return null
+  }
+
+  return (
+    <View style={[s.flexRow, s.mb2, s.alignCenter]}>
+      <FontAwesomeIcon
+        icon="reply"
+        size={9}
+        style={[{color: pal.colors.textLight} as FontAwesomeIconStyle, s.mr5]}
+      />
+      <Text
+        type="md"
+        style={[pal.textLight, s.mr2]}
+        lineHeight={1.2}
+        numberOfLines={1}>
+        {label}
       </Text>
     </View>
   )

src/view/screens/Search/Explore.tsx

@@ -75,17 +75,17 @@ function SuggestedItemsHeader({
   )
 }
 
-type LoadMoreItems =
+type LoadMoreItem =
   | {
       type: 'profile'
       key: string
-      avatar: string
+      avatar: string | undefined
       moderation: ModerationDecision
     }
   | {
       type: 'feed'
       key: string
-      avatar: string
+      avatar: string | undefined
       moderation: undefined
     }
 
@@ -98,27 +98,28 @@ function LoadMore({
 }) {
   const t = useTheme()
   const {_} = useLingui()
-  const items = React.useMemo(() => {
+  const items: LoadMoreItem[] = React.useMemo(() => {
     return item.items
       .map(_item => {
+        let loadMoreItem: LoadMoreItem | undefined
         if (_item.type === 'profile') {
-          return {
+          loadMoreItem = {
             type: 'profile',
             key: _item.profile.did,
             avatar: _item.profile.avatar,
             moderation: moderateProfile(_item.profile, moderationOpts!),
           }
         } else if (_item.type === 'feed') {
-          return {
+          loadMoreItem = {
             type: 'feed',
             key: _item.feed.uri,
             avatar: _item.feed.avatar,
             moderation: undefined,
           }
         }
-        return undefined
+        return loadMoreItem
       })
-      .filter(Boolean) as LoadMoreItems[]
+      .filter(<T,>(n?: T): n is T => Boolean(n))
   }, [item.items, moderationOpts])
 
   if (items.length === 0) return null