Add language filtering to goodstuff

src/lib/api/feed-manip.ts

@@ -1,5 +1,7 @@
 import {AppBskyFeedFeedViewPost} from '@atproto/api'
+import lande from 'lande'
 type FeedViewPost = AppBskyFeedFeedViewPost.Main
+import {hasProp} from '@atproto/lexicon'
 
 export type FeedTunerFn = (
   tuner: FeedTuner,
@@ -178,6 +180,33 @@ export class FeedTuner {
       }
     }
   }
+
+  static englishOnly(tuner: FeedTuner, slices: FeedViewPostsSlice[]) {
+    // TEMP
+    // remove slices with no english in them
+    // we very soon need to get the local user's language and filter
+    // according to their preferences, but for the moment
+    // we're just rolling with english
+    // -prf
+    for (let i = slices.length - 1; i >= 0; i--) {
+      let hasEnglish = false
+      for (const item of slices[i].items) {
+        if (
+          hasProp(item.post.record, 'text') &&
+          typeof item.post.record.text === 'string'
+        ) {
+          const res = lande(item.post.record.text)
+          if (res[0][0] === 'eng') {
+            hasEnglish = true
+            break
+          }
+        }
+      }
+      if (!hasEnglish) {
+        slices.splice(i, 1)
+      }
+    }
+  }
 }
 
 function getSelfReplyUri(item: FeedViewPost): string | undefined {

src/state/models/feed-view.ts

@@ -336,6 +336,20 @@ export class FeedModel {
     return this.setup()
   }
 
+  private get feedTuners() {
+    if (this.feedType === 'goodstuff') {
+      return [
+        FeedTuner.dedupReposts,
+        FeedTuner.likedRepliesOnly,
+        FeedTuner.englishOnly,
+      ]
+    }
+    if (this.feedType === 'home') {
+      return [FeedTuner.dedupReposts, FeedTuner.likedRepliesOnly]
+    }
+    return []
+  }
+
   /**
    * Load for first render
    */
@@ -477,12 +491,7 @@ export class FeedModel {
     }
     const res = await this._getFeed({limit: 1})
     const currentLatestUri = this.pollCursor
-    const slices = this.tuner.tune(
-      res.data.feed,
-      this.feedType === 'home'
-        ? [FeedTuner.dedupReposts, FeedTuner.likedRepliesOnly]
-        : [],
-    )
+    const slices = this.tuner.tune(res.data.feed, this.feedTuners)
     const item = slices[0]?.rootItem
     if (!item) {
       return
@@ -548,12 +557,7 @@ export class FeedModel {
     this.loadMoreCursor = res.data.cursor
     this.hasMore = !!this.loadMoreCursor
 
-    const slices = this.tuner.tune(
-      res.data.feed,
-      this.feedType === 'home'
-        ? [FeedTuner.dedupReposts, FeedTuner.likedRepliesOnly]
-        : [],
-    )
+    const slices = this.tuner.tune(res.data.feed, this.feedTuners)
 
     const toAppend: FeedSliceModel[] = []
     for (const slice of slices) {
@@ -578,12 +582,7 @@ export class FeedModel {
   ) {
     this.pollCursor = res.data.feed[0]?.post.uri
 
-    const slices = this.tuner.tune(
-      res.data.feed,
-      this.feedType === 'home'
-        ? [FeedTuner.dedupReposts, FeedTuner.likedRepliesOnly]
-        : [],
-    )
+    const slices = this.tuner.tune(res.data.feed, this.feedTuners)
 
     const toPrepend: FeedSliceModel[] = []
     for (const slice of slices) {

src/view/com/util/pager/Pager.web.tsx

@@ -51,7 +51,11 @@ export const Pager = ({
           onSelect: onTabBarSelect,
         })}
       {children.map((child, i) => (
-        <View style={selectedPage === i ? undefined : s.hidden}>{child}</View>
+        <View
+          style={selectedPage === i ? undefined : s.hidden}
+          key={`page-${i}`}>
+          {child}
+        </View>
       ))}
       {tabBarPosition === 'bottom' &&
         renderTabBar({