Remove useless TS checks

src/screens/VideoFeed/index.tsx

@@ -165,6 +165,7 @@ type CurrentSource = {
 type VideoItem = {
   moderation: ModerationDecision
   post: AppBskyFeedDefs.PostView
+  video: AppBskyEmbedVideo.View
   feedContext: string | undefined
 }
 
@@ -197,30 +198,30 @@ function Feed() {
 
   const videos = useMemo(() => {
     let vids =
-      data?.pages
+      data?.pages.flatMap(page => {
-        .flatMap(page => {
+        const items: {
-          const items: {
+          _reactKey: string
-            _reactKey: string
+          moderation: ModerationDecision
-            moderation: ModerationDecision
+          post: AppBskyFeedDefs.PostView
-            post: AppBskyFeedDefs.PostView
+          video: AppBskyEmbedVideo.View
-            feedContext: string | undefined
+          feedContext: string | undefined
-          }[] = []
+        }[] = []
-          for (const slice of page.slices) {
+        for (const slice of page.slices) {
-            const feedPost = slice.items.find(
+          const feedPost = slice.items.find(
-              item => item.uri === slice.feedPostUri,
+            item => item.uri === slice.feedPostUri,
-            )
+          )
-            if (feedPost) {
+          if (feedPost && AppBskyEmbedVideo.isView(feedPost.post.embed)) {
-              items.push({
+            items.push({
-                _reactKey: feedPost._reactKey,
+              _reactKey: feedPost._reactKey,
-                moderation: feedPost.moderation,
+              moderation: feedPost.moderation,
-                post: feedPost.post,
+              post: feedPost.post,
-                feedContext: slice.feedContext,
+              video: feedPost.post.embed,
-              })
+              feedContext: slice.feedContext,
-            }
+            })
           }
-          return items
+        }
-        })
+        return items
-        .filter(item => AppBskyEmbedVideo.isView(item.post.embed)) || []
+      }) ?? []
     const startingVideoIndex = vids?.findIndex(video => {
       return video.post.uri === params.initialPostUri
     })
@@ -244,13 +245,7 @@ function Feed() {
 
   const renderItem: ListRenderItem<VideoItem> = useCallback(
     ({item, index}) => {
-      const {post} = item
+      const {post, video} = item
-
-      // filtered above, here for TS
-      if (!post.embed || !AppBskyEmbedVideo.isView(post.embed)) {
-        return null
-      }
-
       const player = players?.[index % 3]
       const currentSource = currentSources[index % 3]
 
@@ -258,11 +253,11 @@ function Feed() {
         <VideoItem
           player={player}
           post={post}
-          embed={post.embed}
+          embed={video}
           active={
             isFocused &&
             index === currentIndex &&
-            currentSource?.source === post.embed.playlist
+            currentSource?.source === video.playlist
           }
           adjacent={index === currentIndex - 1 || index === currentIndex + 1}
           moderation={item.moderation}