Trending (Beta) (#7144)

* Add WIP UIs for trending topics and suggested starterpacks

* Disable SPs for now

* Improve explore treatment a bit, add some polish to cards

* Add tiny option in RightNav

* Add persisted option to hide trending from sidebar

* Add to settings, abstract state, not updating in tab

* Fix up hide/show toggle state, WITH broadcast hacK

* Clean up persisted code, add new setting

* Add new interstitial to Discover

* Exploration

* First hack at mute words

* Wire up interstitial and Explore page

* Align components

* Some skeleton UI

* Handle service config, enablement, load states, update lex contract

* Centralize mute word handling

* Stale time to 30m

* Cache enabled value for reloads, use real data for service config

* Remove broadcast hack

* Remove titleChild

* Gate settings too

* Update package, rm langs

* Add feature gate

* Only english during beta period

* Hook up real data

* Tweak config

* Straight passthrough links

* Hook up prod agent

* Fix no-show logic

* Up config query to 5 min

* Remove old file

* Remove comment

* Remove stray flex_1

* Make trending setting global

* Quick placeholder state

* Limit # in sidebar, tweak spacing

* Tweak gaps

* Handle hide/show of sidebar

* Simplify messages

* Remove interstitial

* Revert "Remove interstitial"

This reverts commit 1358ad47fd.

* Only show interstitial on mobile

* Fix gap

* Add explore page recommendations

* [topics] add topic screen (#7149)

* add topic screen

* decode

* fix search query

* decode

* add server route

* Fix potential bad destructure (undefined)

---------

Co-authored-by: Paul Frazee <pfrazee@gmail.com>
Co-authored-by: Dan Abramov <dan.abramov@gmail.com>
Co-authored-by: Hailey <me@haileyok.com>

bskyweb/cmd/bskyweb/server.go

@@ -235,6 +235,7 @@ func serve(cctx *cli.Context) error {
 
 	// generic routes
 	e.GET("/hashtag/:tag", server.WebGeneric)
+	e.GET("/topic/:topic", server.WebGeneric)
 	e.GET("/search", server.WebGeneric)
 	e.GET("/feeds", server.WebGeneric)
 	e.GET("/notifications", server.WebGeneric)

package.json

@@ -54,7 +54,7 @@
     "icons:optimize": "svgo -f ./assets/icons"
   },
   "dependencies": {
-    "@atproto/api": "^0.13.20",
+    "@atproto/api": "^0.13.21",
     "@bitdrift/react-native": "0.4.0",
     "@braintree/sanitize-url": "^6.0.2",
     "@discord/bottom-sheet": "bluesky-social/react-native-bottom-sheet",

src/App.native.tsx

@@ -57,6 +57,7 @@ import {Provider as ProgressGuideProvider} from '#/state/shell/progress-guide'
 import {Provider as SelectedFeedProvider} from '#/state/shell/selected-feed'
 import {Provider as StarterPackProvider} from '#/state/shell/starter-pack'
 import {Provider as HiddenRepliesProvider} from '#/state/threadgate-hidden-replies'
+import {Provider as TrendingConfigProvider} from '#/state/trending-config'
 import {TestCtrls} from '#/view/com/testing/TestCtrls'
 import {Provider as VideoVolumeProvider} from '#/view/com/util/post-embeds/VideoVolumeContext'
 import * as Toast from '#/view/com/util/Toast'
@@ -143,12 +144,14 @@ function InnerApp() {
                                       <BackgroundNotificationPreferencesProvider>
                                         <MutedThreadsProvider>
                                           <ProgressGuideProvider>
-                                            <GestureHandlerRootView
-                                              style={s.h100pct}>
-                                              <TestCtrls />
-                                              <Shell />
-                                              <NuxDialogs />
-                                            </GestureHandlerRootView>
+                                            <TrendingConfigProvider>
+                                              <GestureHandlerRootView
+                                                style={s.h100pct}>
+                                                <TestCtrls />
+                                                <Shell />
+                                                <NuxDialogs />
+                                              </GestureHandlerRootView>
+                                            </TrendingConfigProvider>
                                           </ProgressGuideProvider>
                                         </MutedThreadsProvider>
                                       </BackgroundNotificationPreferencesProvider>

src/App.web.tsx

@@ -47,6 +47,7 @@ import {Provider as ProgressGuideProvider} from '#/state/shell/progress-guide'
 import {Provider as SelectedFeedProvider} from '#/state/shell/selected-feed'
 import {Provider as StarterPackProvider} from '#/state/shell/starter-pack'
 import {Provider as HiddenRepliesProvider} from '#/state/threadgate-hidden-replies'
+import {Provider as TrendingConfigProvider} from '#/state/trending-config'
 import {Provider as ActiveVideoProvider} from '#/view/com/util/post-embeds/ActiveVideoWebContext'
 import {Provider as VideoVolumeProvider} from '#/view/com/util/post-embeds/VideoVolumeContext'
 import * as Toast from '#/view/com/util/Toast'
@@ -127,8 +128,10 @@ function InnerApp() {
                                         <MutedThreadsProvider>
                                           <SafeAreaProvider>
                                             <ProgressGuideProvider>
-                                              <Shell />
-                                              <NuxDialogs />
+                                              <TrendingConfigProvider>
+                                                <Shell />
+                                                <NuxDialogs />
+                                              </TrendingConfigProvider>
                                             </ProgressGuideProvider>
                                           </SafeAreaProvider>
                                         </MutedThreadsProvider>

src/Navigation.tsx

@@ -100,6 +100,7 @@ import {LanguageSettingsScreen} from './screens/Settings/LanguageSettings'
 import {PrivacyAndSecuritySettingsScreen} from './screens/Settings/PrivacyAndSecuritySettings'
 import {SettingsScreen} from './screens/Settings/Settings'
 import {ThreadPreferencesScreen} from './screens/Settings/ThreadPreferences'
+import TopicScreen from './screens/Topic'
 
 const navigationRef = createNavigationContainerRef<AllNavigatorParams>()
 
@@ -376,6 +377,11 @@ function commonScreens(Stack: typeof HomeTab, unreadCountLabel?: string) {
         getComponent={() => HashtagScreen}
         options={{title: title(msg`Hashtag`)}}
       />
+      <Stack.Screen
+        name="Topic"
+        getComponent={() => TopicScreen}
+        options={{title: title(msg`Topic`)}}
+      />
       <Stack.Screen
         name="MessagesConversation"
         getComponent={() => MessagesConversationScreen}

src/components/GradientFill.tsx

@@ -1,11 +1,13 @@
 import {LinearGradient} from 'expo-linear-gradient'
 
-import {atoms as a, tokens} from '#/alf'
+import {atoms as a, tokens, ViewStyleProp} from '#/alf'
 
 export function GradientFill({
   gradient,
-}: {
+  style,
+}: ViewStyleProp & {
   gradient:
+    | typeof tokens.gradients.primary
     | typeof tokens.gradients.sky
     | typeof tokens.gradients.midnight
     | typeof tokens.gradients.sunrise
@@ -26,7 +28,7 @@ export function GradientFill({
       }
       start={{x: 0, y: 0}}
       end={{x: 1, y: 1}}
-      style={[a.absolute, a.inset_0]}
+      style={[a.absolute, a.inset_0, style]}
     />
   )
 }

src/components/TrendingTopics.tsx

@@ -0,0 +1,223 @@
+import React from 'react'
+import {View} from 'react-native'
+import {AtUri} from '@atproto/api'
+import {msg} from '@lingui/macro'
+import {useLingui} from '@lingui/react'
+
+// import {makeProfileLink} from '#/lib/routes/links'
+// import {feedUriToHref} from '#/lib/strings/url-helpers'
+// import {Hashtag_Stroke2_Corner0_Rounded as Hashtag} from '#/components/icons/Hashtag'
+// import {CloseQuote_Filled_Stroke2_Corner0_Rounded as Quote} from '#/components/icons/Quote'
+// import {UserAvatar} from '#/view/com/util/UserAvatar'
+import type {TrendingTopic} from '#/state/queries/trending/useTrendingTopics'
+import {atoms as a, useTheme, ViewStyleProp} from '#/alf'
+import {Link as InternalLink, LinkProps} from '#/components/Link'
+import {Text} from '#/components/Typography'
+
+export function TrendingTopic({
+  topic: raw,
+  size,
+  style,
+}: {topic: TrendingTopic; size?: 'large' | 'small'} & ViewStyleProp) {
+  const t = useTheme()
+  const topic = useTopic(raw)
+
+  const isSmall = size === 'small'
+  // const hasAvi = topic.type === 'feed' || topic.type === 'profile'
+  // const aviSize = isSmall ? 16 : 20
+  // const iconSize = isSmall ? 16 : 20
+
+  return (
+    <View
+      style={[
+        a.flex_row,
+        a.align_center,
+        a.rounded_full,
+        a.border,
+        t.atoms.border_contrast_medium,
+        t.atoms.bg,
+        isSmall
+          ? [
+              {
+                paddingVertical: 5,
+                paddingHorizontal: 10,
+              },
+            ]
+          : [a.py_sm, a.px_md],
+        style,
+        /*
+        {
+          padding: 6,
+          gap: hasAvi ? 4 : 2,
+        },
+        a.pr_md,
+       */
+      ]}>
+      {/*
+      <View
+        style={[
+          a.align_center,
+          a.justify_center,
+          a.rounded_full,
+          a.overflow_hidden,
+          {
+            width: aviSize,
+            height: aviSize,
+          },
+        ]}>
+        {topic.type === 'tag' ? (
+          <Hashtag width={iconSize} />
+        ) : topic.type === 'topic' ? (
+          <Quote width={iconSize - 2} />
+        ) : topic.type === 'feed' ? (
+          <UserAvatar
+            type="user"
+            size={aviSize}
+            avatar=""
+          />
+        ) : (
+          <UserAvatar
+            type="user"
+            size={aviSize}
+            avatar=""
+          />
+        )}
+      </View>
+        */}
+
+      <Text
+        style={[
+          a.font_bold,
+          a.leading_tight,
+          isSmall ? [a.text_sm] : [a.text_md, {paddingBottom: 1}],
+        ]}
+        numberOfLines={1}>
+        {topic.displayName}
+      </Text>
+    </View>
+  )
+}
+
+export function TrendingTopicSkeleton({
+  size = 'large',
+  index = 0,
+}: {
+  size?: 'large' | 'small'
+  index?: number
+}) {
+  const t = useTheme()
+  const isSmall = size === 'small'
+  return (
+    <View
+      style={[
+        a.rounded_full,
+        a.border,
+        t.atoms.border_contrast_medium,
+        t.atoms.bg_contrast_25,
+        isSmall
+          ? {
+              width: index % 2 === 0 ? 75 : 90,
+              height: 27,
+            }
+          : {
+              width: index % 2 === 0 ? 90 : 110,
+              height: 36,
+            },
+      ]}
+    />
+  )
+}
+
+export function TrendingTopicLink({
+  topic: raw,
+  children,
+  ...rest
+}: {
+  topic: TrendingTopic
+} & Omit<LinkProps, 'to' | 'label'>) {
+  const topic = useTopic(raw)
+
+  return (
+    <InternalLink label={topic.label} to={topic.url} {...rest}>
+      {children}
+    </InternalLink>
+  )
+}
+
+type ParsedTrendingTopic =
+  | {
+      type: 'topic' | 'tag' | 'unknown'
+      label: string
+      displayName: string
+      url: string
+      uri: undefined
+    }
+  | {
+      type: 'profile' | 'feed'
+      label: string
+      displayName: string
+      url: string
+      uri: AtUri
+    }
+
+export function useTopic(raw: TrendingTopic): ParsedTrendingTopic {
+  const {_} = useLingui()
+  return React.useMemo(() => {
+    const {topic: displayName, link} = raw
+
+    if (link.startsWith('/search')) {
+      return {
+        type: 'topic',
+        label: _(msg`Browse posts about ${displayName}`),
+        displayName,
+        uri: undefined,
+        url: link,
+      }
+    } else if (link.startsWith('/hashtag')) {
+      return {
+        type: 'tag',
+        label: _(msg`Browse posts tagged with ${displayName}`),
+        displayName,
+        // displayName: displayName.replace(/^#/, ''),
+        uri: undefined,
+        url: link,
+      }
+    }
+
+    /*
+    if (!link.startsWith('at://')) {
+      // above logic
+    } else {
+      const urip = new AtUri(link)
+      switch (urip.collection) {
+        case 'app.bsky.actor.profile': {
+          return {
+            type: 'profile',
+            label: _(msg`View ${displayName}'s profile`),
+            displayName,
+            uri: urip,
+            url: makeProfileLink({did: urip.host, handle: urip.host}),
+          }
+        }
+        case 'app.bsky.feed.generator': {
+          return {
+            type: 'feed',
+            label: _(msg`Browse the ${displayName} feed`),
+            displayName,
+            uri: urip,
+            url: feedUriToHref(link),
+          }
+        }
+      }
+    }
+     */
+
+    return {
+      type: 'unknown',
+      label: _(msg`Browse topic ${displayName}`),
+      displayName,
+      uri: undefined,
+      url: link,
+    }
+  }, [_, raw])
+}

src/components/interstitials/Trending.tsx

@@ -0,0 +1,111 @@
+import {View} from 'react-native'
+import {msg, Trans} from '@lingui/macro'
+import {useLingui} from '@lingui/react'
+
+import {
+  useTrendingSettings,
+  useTrendingSettingsApi,
+} from '#/state/preferences/trending'
+import {
+  DEFAULT_LIMIT as TRENDING_TOPICS_COUNT,
+  useTrendingTopics,
+} from '#/state/queries/trending/useTrendingTopics'
+import {useTrendingConfig} from '#/state/trending-config'
+import {atoms as a, tokens, useGutters, useTheme} from '#/alf'
+import {Button, ButtonIcon} from '#/components/Button'
+import {GradientFill} from '#/components/GradientFill'
+import {TimesLarge_Stroke2_Corner0_Rounded as X} from '#/components/icons/Times'
+import {Trending2_Stroke2_Corner2_Rounded as Graph} from '#/components/icons/Trending2'
+import * as Prompt from '#/components/Prompt'
+import {
+  TrendingTopic,
+  TrendingTopicLink,
+  TrendingTopicSkeleton,
+} from '#/components/TrendingTopics'
+import {Text} from '#/components/Typography'
+
+export function TrendingInterstitial() {
+  const {enabled} = useTrendingConfig()
+  const {trendingDisabled} = useTrendingSettings()
+  return enabled && !trendingDisabled ? <Inner /> : null
+}
+
+export function Inner() {
+  const t = useTheme()
+  const {_} = useLingui()
+  const gutters = useGutters(['wide', 'base'])
+  const trendingPrompt = Prompt.usePromptControl()
+  const {setTrendingDisabled} = useTrendingSettingsApi()
+  const {data: trending, error, isLoading} = useTrendingTopics()
+  const noTopics = !isLoading && !error && !trending?.topics?.length
+
+  return error || noTopics ? null : (
+    <View
+      style={[
+        gutters,
+        a.gap_lg,
+        a.border_t,
+        t.atoms.border_contrast_low,
+        t.atoms.bg_contrast_25,
+      ]}>
+      <View style={[a.flex_row, a.align_center, a.gap_sm]}>
+        <View style={[a.flex_1, a.flex_row, a.align_center, a.gap_sm]}>
+          <Graph size="lg" />
+          <Text style={[a.text_lg, a.font_heavy]}>
+            <Trans>Trending</Trans>
+          </Text>
+          <View style={[a.py_xs, a.px_sm, a.rounded_sm, a.overflow_hidden]}>
+            <GradientFill gradient={tokens.gradients.primary} />
+            <Text style={[a.text_sm, a.font_heavy, {color: 'white'}]}>
+              <Trans>BETA</Trans>
+            </Text>
+          </View>
+        </View>
+
+        <Button
+          label={_(msg`Hide trending topics`)}
+          size="tiny"
+          variant="outline"
+          color="secondary"
+          shape="round"
+          onPress={() => trendingPrompt.open()}>
+          <ButtonIcon icon={X} />
+        </Button>
+      </View>
+
+      <View style={[a.flex_row, a.flex_wrap, {rowGap: 8, columnGap: 6}]}>
+        {isLoading ? (
+          Array(TRENDING_TOPICS_COUNT)
+            .fill(0)
+            .map((_n, i) => <TrendingTopicSkeleton key={i} index={i} />)
+        ) : !trending?.topics ? null : (
+          <>
+            {trending.topics.map(topic => (
+              <TrendingTopicLink key={topic.link} topic={topic}>
+                {({hovered}) => (
+                  <TrendingTopic
+                    topic={topic}
+                    style={[
+                      hovered && [
+                        t.atoms.border_contrast_high,
+                        t.atoms.bg_contrast_25,
+                      ],
+                    ]}
+                  />
+                )}
+              </TrendingTopicLink>
+            ))}
+          </>
+        )}
+      </View>
+
+      <Prompt.Basic
+        control={trendingPrompt}
+        title={_(msg`Hide trending topics?`)}
+        description={_(msg`You can update this later from your settings.`)}
+        confirmButtonCta={_(msg`Hide`)}
+        onConfirm={() => setTrendingDisabled(true)}
+      />
+    </View>
+  )
+}

src/lib/routes/types.ts

@@ -47,6 +47,7 @@ export type CommonNavigatorParams = {
   AppIconSettings: undefined
   Search: {q?: string}
   Hashtag: {tag: string; author?: string}
+  Topic: {topic: string}
   MessagesConversation: {conversation: string; embed?: string}
   MessagesSettings: undefined
   NotificationSettings: undefined
@@ -92,6 +93,7 @@ export type FlatNavigatorParams = CommonNavigatorParams & {
   Feeds: undefined
   Notifications: undefined
   Hashtag: {tag: string; author?: string}
+  Topic: {topic: string}
   Messages: {pushToConversation?: string; animation?: 'push' | 'pop'}
 }
 
@@ -105,6 +107,7 @@ export type AllNavigatorParams = CommonNavigatorParams & {
   Notifications: undefined
   MyProfileTab: undefined
   Hashtag: {tag: string; author?: string}
+  Topic: {topic: string}
   MessagesTab: undefined
   Messages: {animation?: 'push' | 'pop'}
   Start: {name: string; rkey: string}

src/lib/statsig/gates.ts

@@ -4,3 +4,4 @@ export type Gate =
   | 'debug_subscriptions'
   | 'new_postonboarding'
   | 'remove_show_latest_button'
+  | 'trending_topics_beta'

src/routes.ts

@@ -53,6 +53,7 @@ export const router = new Router({
   CopyrightPolicy: '/support/copyright',
   // hashtags
   Hashtag: '/hashtag/:tag',
+  Topic: '/topic/:topic',
   // DMs
   Messages: '/messages',
   MessagesSettings: '/messages/settings',

src/screens/Search/components/ExploreRecommendations.tsx

@@ -0,0 +1,95 @@
+import {View} from 'react-native'
+import {Trans} from '@lingui/macro'
+
+import {isWeb} from '#/platform/detection'
+import {useTrendingSettings} from '#/state/preferences/trending'
+import {
+  DEFAULT_LIMIT as RECOMMENDATIONS_COUNT,
+  useTrendingTopics,
+} from '#/state/queries/trending/useTrendingTopics'
+import {useTrendingConfig} from '#/state/trending-config'
+import {atoms as a, useGutters, useTheme} from '#/alf'
+import {Hashtag_Stroke2_Corner0_Rounded} from '#/components/icons/Hashtag'
+import {
+  TrendingTopic,
+  TrendingTopicLink,
+  TrendingTopicSkeleton,
+} from '#/components/TrendingTopics'
+import {Text} from '#/components/Typography'
+
+export function ExploreRecommendations() {
+  const {enabled} = useTrendingConfig()
+  const {trendingDisabled} = useTrendingSettings()
+  return enabled && !trendingDisabled ? <Inner /> : null
+}
+
+function Inner() {
+  const t = useTheme()
+  const gutters = useGutters([0, 'compact'])
+  const {data: trending, error, isLoading} = useTrendingTopics()
+  const noRecs = !isLoading && !error && !trending?.suggested?.length
+
+  return error || noRecs ? null : (
+    <>
+      <View
+        style={[
+          isWeb
+            ? [a.flex_row, a.px_lg, a.py_lg, a.pt_2xl, a.gap_md]
+            : [{flexDirection: 'row-reverse'}, a.p_lg, a.pt_2xl, a.gap_md],
+          a.border_b,
+          t.atoms.border_contrast_low,
+        ]}>
+        <View style={[a.flex_1, a.gap_sm]}>
+          <View style={[a.flex_row, a.align_center, a.gap_sm]}>
+            <Hashtag_Stroke2_Corner0_Rounded
+              size="lg"
+              fill={t.palette.primary_500}
+              style={{marginLeft: -2}}
+            />
+            <Text style={[a.text_2xl, a.font_heavy, t.atoms.text]}>
+              <Trans>Recommended</Trans>
+            </Text>
+          </View>
+          <Text style={[t.atoms.text_contrast_high, a.leading_snug]}>
+            <Trans>Feeds we think you might like.</Trans>
+          </Text>
+        </View>
+      </View>
+
+      <View style={[a.pt_md, a.pb_lg]}>
+        <View
+          style={[
+            a.flex_row,
+            a.justify_start,
+            a.flex_wrap,
+            {rowGap: 8, columnGap: 6},
+            gutters,
+          ]}>
+          {isLoading ? (
+            Array(RECOMMENDATIONS_COUNT)
+              .fill(0)
+              .map((_, i) => <TrendingTopicSkeleton key={i} index={i} />)
+          ) : !trending?.suggested ? null : (
+            <>
+              {trending.suggested.map(topic => (
+                <TrendingTopicLink key={topic.link} topic={topic}>
+                  {({hovered}) => (
+                    <TrendingTopic
+                      topic={topic}
+                      style={[
+                        hovered && [
+                          t.atoms.border_contrast_high,
+                          t.atoms.bg_contrast_25,
+                        ],
+                      ]}
+                    />
+                  )}
+                </TrendingTopicLink>
+              ))}
+            </>
+          )}
+        </View>
+      </View>
+    </>
+  )
+}

src/screens/Search/components/ExploreTrendingTopics.tsx

@@ -0,0 +1,102 @@
+import {View} from 'react-native'
+import {Trans} from '@lingui/macro'
+
+import {isWeb} from '#/platform/detection'
+import {useTrendingSettings} from '#/state/preferences/trending'
+import {
+  DEFAULT_LIMIT as TRENDING_TOPICS_COUNT,
+  useTrendingTopics,
+} from '#/state/queries/trending/useTrendingTopics'
+import {useTrendingConfig} from '#/state/trending-config'
+import {atoms as a, tokens, useGutters, useTheme} from '#/alf'
+import {GradientFill} from '#/components/GradientFill'
+import {Trending2_Stroke2_Corner2_Rounded as Trending} from '#/components/icons/Trending2'
+import {
+  TrendingTopic,
+  TrendingTopicLink,
+  TrendingTopicSkeleton,
+} from '#/components/TrendingTopics'
+import {Text} from '#/components/Typography'
+
+export function ExploreTrendingTopics() {
+  const {enabled} = useTrendingConfig()
+  const {trendingDisabled} = useTrendingSettings()
+  return enabled && !trendingDisabled ? <Inner /> : null
+}
+
+function Inner() {
+  const t = useTheme()
+  const gutters = useGutters([0, 'compact'])
+  const {data: trending, error, isLoading} = useTrendingTopics()
+  const noTopics = !isLoading && !error && !trending?.topics?.length
+
+  return error || noTopics ? null : (
+    <>
+      <View
+        style={[
+          isWeb
+            ? [a.flex_row, a.px_lg, a.py_lg, a.pt_2xl, a.gap_md]
+            : [{flexDirection: 'row-reverse'}, a.p_lg, a.pt_2xl, a.gap_md],
+          a.border_b,
+          t.atoms.border_contrast_low,
+        ]}>
+        <View style={[a.flex_1, a.gap_sm]}>
+          <View style={[a.flex_row, a.align_center, a.gap_sm]}>
+            <Trending
+              size="lg"
+              fill={t.palette.primary_500}
+              style={{marginLeft: -2}}
+            />
+            <Text style={[a.text_2xl, a.font_heavy, t.atoms.text]}>
+              <Trans>Trending</Trans>
+            </Text>
+            <View style={[a.py_xs, a.px_sm, a.rounded_sm, a.overflow_hidden]}>
+              <GradientFill gradient={tokens.gradients.primary} />
+              <Text style={[a.text_sm, a.font_heavy, {color: 'white'}]}>
+                <Trans>BETA</Trans>
+              </Text>
+            </View>
+          </View>
+          <Text style={[t.atoms.text_contrast_high, a.leading_snug]}>
+            <Trans>What people are posting about.</Trans>
+          </Text>
+        </View>
+      </View>
+
+      <View style={[a.pt_md, a.pb_lg]}>
+        <View
+          style={[
+            a.flex_row,
+            a.justify_start,
+            a.flex_wrap,
+            {rowGap: 8, columnGap: 6},
+            gutters,
+          ]}>
+          {isLoading ? (
+            Array(TRENDING_TOPICS_COUNT)
+              .fill(0)
+              .map((_, i) => <TrendingTopicSkeleton key={i} index={i} />)
+          ) : !trending?.topics ? null : (
+            <>
+              {trending.topics.map(topic => (
+                <TrendingTopicLink key={topic.link} topic={topic}>
+                  {({hovered}) => (
+                    <TrendingTopic
+                      topic={topic}
+                      style={[
+                        hovered && [
+                          t.atoms.border_contrast_high,
+                          t.atoms.bg_contrast_25,
+                        ],
+                      ]}
+                    />
+                  )}
+                </TrendingTopicLink>
+              ))}
+            </>
+          )}
+        </View>
+      </View>
+    </>
+  )
+}

src/screens/Settings/ContentAndMediaSettings.tsx

@@ -9,6 +9,11 @@ import {
   useInAppBrowser,
   useSetInAppBrowser,
 } from '#/state/preferences/in-app-browser'
+import {
+  useTrendingSettings,
+  useTrendingSettingsApi,
+} from '#/state/preferences/trending'
+import {useTrendingConfig} from '#/state/trending-config'
 import * as SettingsList from '#/screens/Settings/components/SettingsList'
 import * as Toggle from '#/components/forms/Toggle'
 import {Bubbles_Stroke2_Corner2_Rounded as BubblesIcon} from '#/components/icons/Bubble'
@@ -16,6 +21,7 @@ import {Hashtag_Stroke2_Corner0_Rounded as HashtagIcon} from '#/components/icons
 import {Home_Stroke2_Corner2_Rounded as HomeIcon} from '#/components/icons/Home'
 import {Macintosh_Stroke2_Corner2_Rounded as MacintoshIcon} from '#/components/icons/Macintosh'
 import {Play_Stroke2_Corner2_Rounded as PlayIcon} from '#/components/icons/Play'
+import {Trending2_Stroke2_Corner2_Rounded as Graph} from '#/components/icons/Trending2'
 import {Window_Stroke2_Corner2_Rounded as WindowIcon} from '#/components/icons/Window'
 import * as Layout from '#/components/Layout'
 
@@ -29,6 +35,9 @@ export function ContentAndMediaSettingsScreen({}: Props) {
   const setAutoplayDisabledPref = useSetAutoplayDisabled()
   const inAppBrowserPref = useInAppBrowser()
   const setUseInAppBrowser = useSetInAppBrowser()
+  const {enabled: trendingEnabled} = useTrendingConfig()
+  const {trendingDisabled} = useTrendingSettings()
+  const {setTrendingDisabled} = useTrendingSettingsApi()
 
   return (
     <Layout.Screen>
@@ -104,6 +113,24 @@ export function ContentAndMediaSettingsScreen({}: Props) {
               <Toggle.Platform />
             </SettingsList.Item>
           </Toggle.Item>
+          {trendingEnabled && (
+            <>
+              <SettingsList.Divider />
+              <Toggle.Item
+                name="show_trending_topics"
+                label={_(msg`Enable trending topics`)}
+                value={!trendingDisabled}
+                onChange={value => setTrendingDisabled(!value)}>
+                <SettingsList.Item>
+                  <SettingsList.ItemIcon icon={Graph} />
+                  <SettingsList.ItemText>
+                    <Trans>Enable trending topics</Trans>
+                  </SettingsList.ItemText>
+                  <Toggle.Platform />
+                </SettingsList.Item>
+              </Toggle.Item>
+            </>
+          )}
         </SettingsList.Container>
       </Layout.Content>
     </Layout.Screen>

src/screens/Topic.tsx

@@ -0,0 +1,204 @@
+import React from 'react'
+import {ListRenderItemInfo, View} from 'react-native'
+import {PostView} from '@atproto/api/dist/client/types/app/bsky/feed/defs'
+import {msg} from '@lingui/macro'
+import {useLingui} from '@lingui/react'
+import {useFocusEffect} from '@react-navigation/native'
+import {NativeStackScreenProps} from '@react-navigation/native-stack'
+
+import {HITSLOP_10} from '#/lib/constants'
+import {useInitialNumToRender} from '#/lib/hooks/useInitialNumToRender'
+import {CommonNavigatorParams} from '#/lib/routes/types'
+import {shareUrl} from '#/lib/sharing'
+import {cleanError} from '#/lib/strings/errors'
+import {enforceLen} from '#/lib/strings/helpers'
+import {useSearchPostsQuery} from '#/state/queries/search-posts'
+import {useSetMinimalShellMode} from '#/state/shell'
+import {Pager} from '#/view/com/pager/Pager'
+import {TabBar} from '#/view/com/pager/TabBar'
+import {Post} from '#/view/com/post/Post'
+import {List} from '#/view/com/util/List'
+import {atoms as a, web} from '#/alf'
+import {Button, ButtonIcon} from '#/components/Button'
+import {ArrowOutOfBox_Stroke2_Corner0_Rounded as Share} from '#/components/icons/ArrowOutOfBox'
+import * as Layout from '#/components/Layout'
+import {ListFooter, ListMaybePlaceholder} from '#/components/Lists'
+
+const renderItem = ({item}: ListRenderItemInfo<PostView>) => {
+  return <Post post={item} />
+}
+
+const keyExtractor = (item: PostView, index: number) => {
+  return `${item.uri}-${index}`
+}
+
+export default function TopicScreen({
+  route,
+}: NativeStackScreenProps<CommonNavigatorParams, 'Topic'>) {
+  const {topic} = route.params
+  const {_} = useLingui()
+
+  const headerTitle = React.useMemo(() => {
+    return enforceLen(decodeURIComponent(topic), 24, true, 'middle')
+  }, [topic])
+
+  const onShare = React.useCallback(() => {
+    const url = new URL('https://bsky.app')
+    url.pathname = `/topic/${topic}`
+    shareUrl(url.toString())
+  }, [topic])
+
+  const [activeTab, setActiveTab] = React.useState(0)
+  const setMinimalShellMode = useSetMinimalShellMode()
+
+  useFocusEffect(
+    React.useCallback(() => {
+      setMinimalShellMode(false)
+    }, [setMinimalShellMode]),
+  )
+
+  const onPageSelected = React.useCallback(
+    (index: number) => {
+      setMinimalShellMode(false)
+      setActiveTab(index)
+    },
+    [setMinimalShellMode],
+  )
+
+  const sections = React.useMemo(() => {
+    return [
+      {
+        title: _(msg`Top`),
+        component: (
+          <TopicScreenTab topic={topic} sort="top" active={activeTab === 0} />
+        ),
+      },
+      {
+        title: _(msg`Latest`),
+        component: (
+          <TopicScreenTab
+            topic={topic}
+            sort="latest"
+            active={activeTab === 1}
+          />
+        ),
+      },
+    ]
+  }, [_, topic, activeTab])
+
+  return (
+    <Layout.Screen>
+      <Layout.Header.Outer noBottomBorder>
+        <Layout.Header.BackButton />
+        <Layout.Header.Content>
+          <Layout.Header.TitleText>{headerTitle}</Layout.Header.TitleText>
+        </Layout.Header.Content>
+        <Layout.Header.Slot>
+          <Button
+            label={_(msg`Share`)}
+            size="small"
+            variant="ghost"
+            color="primary"
+            shape="round"
+            onPress={onShare}
+            hitSlop={HITSLOP_10}
+            style={[{right: -3}]}>
+            <ButtonIcon icon={Share} size="md" />
+          </Button>
+        </Layout.Header.Slot>
+      </Layout.Header.Outer>
+      <Pager
+        onPageSelected={onPageSelected}
+        renderTabBar={props => (
+          <Layout.Center style={[a.z_10, web([a.sticky, {top: 0}])]}>
+            <TabBar items={sections.map(section => section.title)} {...props} />
+          </Layout.Center>
+        )}
+        initialPage={0}>
+        {sections.map((section, i) => (
+          <View key={i}>{section.component}</View>
+        ))}
+      </Pager>
+    </Layout.Screen>
+  )
+}
+
+function TopicScreenTab({
+  topic,
+  sort,
+  active,
+}: {
+  topic: string
+  sort: 'top' | 'latest'
+  active: boolean
+}) {
+  const {_} = useLingui()
+  const initialNumToRender = useInitialNumToRender()
+  const [isPTR, setIsPTR] = React.useState(false)
+
+  const {
+    data,
+    isFetched,
+    isFetchingNextPage,
+    isLoading,
+    isError,
+    error,
+    refetch,
+    fetchNextPage,
+    hasNextPage,
+  } = useSearchPostsQuery({
+    query: decodeURIComponent(topic),
+    sort,
+    enabled: active,
+  })
+
+  const posts = React.useMemo(() => {
+    return data?.pages.flatMap(page => page.posts) || []
+  }, [data])
+
+  const onRefresh = React.useCallback(async () => {
+    setIsPTR(true)
+    await refetch()
+    setIsPTR(false)
+  }, [refetch])
+
+  const onEndReached = React.useCallback(() => {
+    if (isFetchingNextPage || !hasNextPage || error) return
+    fetchNextPage()
+  }, [isFetchingNextPage, hasNextPage, error, fetchNextPage])
+
+  return (
+    <>
+      {posts.length < 1 ? (
+        <ListMaybePlaceholder
+          isLoading={isLoading || !isFetched}
+          isError={isError}
+          onRetry={refetch}
+          emptyType="results"
+          emptyMessage={_(msg`We couldn't find any results for that topic.`)}
+        />
+      ) : (
+        <List
+          data={posts}
+          renderItem={renderItem}
+          keyExtractor={keyExtractor}
+          refreshing={isPTR}
+          onRefresh={onRefresh}
+          onEndReached={onEndReached}
+          onEndReachedThreshold={4}
+          // @ts-ignore web only -prf
+          desktopFixedHeight
+          ListFooterComponent={
+            <ListFooter
+              isFetchingNextPage={isFetchingNextPage}
+              error={cleanError(error)}
+              onRetry={fetchNextPage}
+            />
+          }
+          initialNumToRender={initialNumToRender}
+          windowSize={11}
+        />
+      )}
+    </>
+  )
+}

src/state/persisted/schema.ts

@@ -125,6 +125,7 @@ const schema = z.object({
   subtitlesEnabled: z.boolean().optional(),
   /** @deprecated */
   mutedThreads: z.array(z.string()),
+  trendingDisabled: z.boolean().optional(),
 })
 export type Schema = z.infer<typeof schema>
 
@@ -170,6 +171,7 @@ export const defaults: Schema = {
   kawaii: false,
   hasCheckedForStarterPack: false,
   subtitlesEnabled: true,
+  trendingDisabled: false,
 }
 
 export function tryParse(rawData: string): Schema | undefined {

src/state/preferences/index.tsx

@@ -10,6 +10,7 @@ import {Provider as KawaiiProvider} from './kawaii'
 import {Provider as LanguagesProvider} from './languages'
 import {Provider as LargeAltBadgeProvider} from './large-alt-badge'
 import {Provider as SubtitlesProvider} from './subtitles'
+import {Provider as TrendingSettingsProvider} from './trending'
 import {Provider as UsedStarterPacksProvider} from './used-starter-packs'
 
 export {
@@ -39,7 +40,9 @@ export function Provider({children}: React.PropsWithChildren<{}>) {
                   <AutoplayProvider>
                     <UsedStarterPacksProvider>
                       <SubtitlesProvider>
-                        <KawaiiProvider>{children}</KawaiiProvider>
+                        <TrendingSettingsProvider>
+                          <KawaiiProvider>{children}</KawaiiProvider>
+                        </TrendingSettingsProvider>
                       </SubtitlesProvider>
                     </UsedStarterPacksProvider>
                   </AutoplayProvider>

src/state/preferences/trending.tsx

@@ -0,0 +1,69 @@
+import React from 'react'
+
+import * as persisted from '#/state/persisted'
+
+type StateContext = {
+  trendingDisabled: Exclude<persisted.Schema['trendingDisabled'], undefined>
+}
+type ApiContext = {
+  setTrendingDisabled(
+    hidden: Exclude<persisted.Schema['trendingDisabled'], undefined>,
+  ): void
+}
+
+const StateContext = React.createContext<StateContext>({
+  trendingDisabled: Boolean(persisted.defaults.trendingDisabled),
+})
+const ApiContext = React.createContext<ApiContext>({
+  setTrendingDisabled() {},
+})
+
+function usePersistedBooleanValue<T extends keyof persisted.Schema>(key: T) {
+  const [value, _set] = React.useState(() => {
+    return Boolean(persisted.get(key))
+  })
+  const set = React.useCallback<
+    (value: Exclude<persisted.Schema[T], undefined>) => void
+  >(
+    hidden => {
+      _set(Boolean(hidden))
+      persisted.write(key, hidden)
+    },
+    [key, _set],
+  )
+  React.useEffect(() => {
+    return persisted.onUpdate(key, hidden => {
+      _set(Boolean(hidden))
+    })
+  }, [key, _set])
+
+  return [value, set] as const
+}
+
+export function Provider({children}: React.PropsWithChildren<{}>) {
+  const [trendingDisabled, setTrendingDisabled] =
+    usePersistedBooleanValue('trendingDisabled')
+
+  /*
+   * Context
+   */
+  const state = React.useMemo(() => ({trendingDisabled}), [trendingDisabled])
+  const api = React.useMemo(
+    () => ({setTrendingDisabled}),
+    [setTrendingDisabled],
+  )
+
+  return (
+    <StateContext.Provider value={state}>
+      <ApiContext.Provider value={api}>{children}</ApiContext.Provider>
+    </StateContext.Provider>
+  )
+}
+
+export function useTrendingSettings() {
+  return React.useContext(StateContext)
+}
+
+export function useTrendingSettingsApi() {
+  return React.useContext(ApiContext)
+}

src/state/queries/index.ts

@@ -6,6 +6,7 @@ export const STALE = {
   MINUTES: {
     ONE: 1e3 * 60,
     FIVE: 1e3 * 60 * 5,
+    THIRTY: 1e3 * 60 * 30,
   },
   HOURS: {
     ONE: 1e3 * 60 * 60,

src/state/queries/service-config.ts

@@ -0,0 +1,32 @@
+import {useQuery} from '@tanstack/react-query'
+
+import {STALE} from '#/state/queries'
+import {useAgent} from '#/state/session'
+
+type ServiceConfig = {
+  checkEmailConfirmed: boolean
+  topicsEnabled: boolean
+}
+
+export function useServiceConfigQuery() {
+  const agent = useAgent()
+  return useQuery<ServiceConfig>({
+    refetchOnWindowFocus: true,
+    staleTime: STALE.MINUTES.FIVE,
+    queryKey: ['service-config'],
+    queryFn: async () => {
+      try {
+        const {data} = await agent.api.app.bsky.unspecced.getConfig()
+        return {
+          checkEmailConfirmed: Boolean(data.checkEmailConfirmed),
+          topicsEnabled: Boolean(data.topicsEnabled),
+        }
+      } catch (e) {
+        return {
+          checkEmailConfirmed: false,
+          topicsEnabled: false,
+        }
+      }
+    },
+  })
+}

src/state/queries/trending/useTrendingTopics.ts

@@ -0,0 +1,49 @@
+import React from 'react'
+import {AppBskyUnspeccedDefs} from '@atproto/api'
+import {hasMutedWord} from '@atproto/api/dist/moderation/mutewords'
+import {useQuery} from '@tanstack/react-query'
+
+import {STALE} from '#/state/queries'
+import {usePreferencesQuery} from '#/state/queries/preferences'
+import {useAgent} from '#/state/session'
+
+export type TrendingTopic = AppBskyUnspeccedDefs.TrendingTopic
+
+export const DEFAULT_LIMIT = 14
+
+export const trendingTopicsQueryKey = ['trending-topics']
+
+export function useTrendingTopics() {
+  const agent = useAgent()
+  const {data: preferences} = usePreferencesQuery()
+  const mutedWords = React.useMemo(() => {
+    return preferences?.moderationPrefs?.mutedWords || []
+  }, [preferences?.moderationPrefs])
+
+  return useQuery({
+    refetchOnWindowFocus: true,
+    staleTime: STALE.MINUTES.THIRTY,
+    queryKey: trendingTopicsQueryKey,
+    async queryFn() {
+      const {data} = await agent.api.app.bsky.unspecced.getTrendingTopics({
+        limit: DEFAULT_LIMIT,
+      })
+
+      const {topics, suggested} = data
+      return {
+        topics: topics.filter(t => {
+          return !hasMutedWord({
+            mutedWords,
+            text: t.topic + ' ' + t.displayName + ' ' + t.description,
+          })
+        }),
+        suggested: suggested.filter(t => {
+          return !hasMutedWord({
+            mutedWords,
+            text: t.topic + ' ' + t.displayName + ' ' + t.description,
+          })
+        }),
+      }
+    },
+  })
+}

src/state/trending-config.tsx

@@ -0,0 +1,70 @@
+import React from 'react'
+
+import {useGate} from '#/lib/statsig/statsig'
+import {useLanguagePrefs} from '#/state/preferences/languages'
+import {useServiceConfigQuery} from '#/state/queries/service-config'
+import {device} from '#/storage'
+
+type Context = {
+  enabled: boolean
+}
+
+const Context = React.createContext<Context>({
+  enabled: false,
+})
+
+export function Provider({children}: React.PropsWithChildren<{}>) {
+  const gate = useGate()
+  const langPrefs = useLanguagePrefs()
+  const {data: config, isLoading: isInitialLoad} = useServiceConfigQuery()
+  const ctx = React.useMemo<Context>(() => {
+    if (__DEV__) {
+      return {enabled: true}
+    }
+
+    /*
+     * Only English during beta period
+     */
+    if (
+      !!langPrefs.contentLanguages.length &&
+      !langPrefs.contentLanguages.includes('en')
+    ) {
+      return {enabled: false}
+    }
+
+    /*
+     * While loading, use cached value
+     */
+    const cachedEnabled = device.get(['trendingBetaEnabled'])
+    if (isInitialLoad) {
+      return {enabled: Boolean(cachedEnabled)}
+    }
+
+    /*
+     * Doing an extra check here to reduce hits to statsig. If it's disabled on
+     * the server, we can exit early.
+     */
+    const enabled = Boolean(config?.topicsEnabled)
+    if (!enabled) {
+      // cache for next reload
+      device.set(['trendingBetaEnabled'], enabled)
+      return {enabled: false}
+    }
+
+    /*
+     * Service is enabled, but also check statsig in case we're rolling back.
+     */
+    const gateEnabled = gate('trending_topics_beta')
+    const _enabled = enabled && gateEnabled
+
+    // update cache
+    device.set(['trendingBetaEnabled'], _enabled)
+
+    return {enabled: _enabled}
+  }, [isInitialLoad, config, gate, langPrefs.contentLanguages])
+  return <Context.Provider value={ctx}>{children}</Context.Provider>
+}
+
+export function useTrendingConfig() {
+  return React.useContext(Context)
+}

src/storage/schema.ts

@@ -8,4 +8,5 @@ export type Device = {
   geolocation?: {
     countryCode: string | undefined
   }
+  trendingBetaEnabled: boolean
 }

src/view/com/posts/PostFeed.tsx

@@ -23,6 +23,7 @@ import {logger} from '#/logger'
 import {isIOS, isWeb} from '#/platform/detection'
 import {listenPostCreated} from '#/state/events'
 import {useFeedFeedbackContext} from '#/state/feed-feedback'
+import {useTrendingSettings} from '#/state/preferences/trending'
 import {STALE} from '#/state/queries'
 import {
   FeedDescriptor,
@@ -34,7 +35,9 @@ import {
 } from '#/state/queries/post-feed'
 import {useSession} from '#/state/session'
 import {useProgressGuide} from '#/state/shell/progress-guide'
+import {useBreakpoints} from '#/alf'
 import {ProgressGuide, SuggestedFollows} from '#/components/FeedInterstitials'
+import {TrendingInterstitial} from '#/components/interstitials/Trending'
 import {List, ListRef} from '../util/List'
 import {PostFeedLoadingPlaceholder} from '../util/LoadingPlaceholder'
 import {LoadMoreRetryBtn} from '../util/LoadMoreRetryBtn'
@@ -90,6 +93,10 @@ type FeedRow =
       type: 'interstitialProgressGuide'
       key: string
     }
+  | {
+      type: 'interstitialTrending'
+      key: string
+    }
 
 export function getFeedPostSlice(feedRow: FeedRow): FeedPostSlice | null {
   if (feedRow.type === 'sliceItem') {
@@ -156,6 +163,7 @@ let PostFeed = ({
   const checkForNewRef = React.useRef<(() => void) | null>(null)
   const lastFetchRef = React.useRef<number>(Date.now())
   const [feedType, feedUri, feedTab] = feed.split('|')
+  const {gtTablet} = useBreakpoints()
 
   const opts = React.useMemo(
     () => ({enabled, ignoreFilterFor}),
@@ -259,6 +267,8 @@ let PostFeed = ({
   const showProgressIntersitial =
     (followProgressGuide || followAndLikeProgressGuide) && !isDesktop
 
+  const {trendingDisabled} = useTrendingSettings()
+
   const feedItems: FeedRow[] = React.useMemo(() => {
     let feedKind: 'following' | 'discover' | 'profile' | undefined
     if (feedType === 'following') {
@@ -304,7 +314,16 @@ let PostFeed = ({
                     type: 'interstitialProgressGuide',
                     key: 'interstitial-' + sliceIndex + '-' + lastFetchedAt,
                   })
-                } else if (sliceIndex === 20) {
+                } else if (
+                  sliceIndex === 15 &&
+                  !gtTablet &&
+                  !trendingDisabled
+                ) {
+                  arr.push({
+                    type: 'interstitialTrending',
+                    key: 'interstitial-' + sliceIndex + '-' + lastFetchedAt,
+                  })
+                } else if (sliceIndex === 30) {
                   arr.push({
                     type: 'interstitialFollows',
                     key: 'interstitial-' + sliceIndex + '-' + lastFetchedAt,
@@ -390,6 +409,8 @@ let PostFeed = ({
     feedTab,
     hasSession,
     showProgressIntersitial,
+    trendingDisabled,
+    gtTablet,
   ])
 
   // events
@@ -476,6 +497,8 @@ let PostFeed = ({
         return <SuggestedFollows feed={feed} />
       } else if (row.type === 'interstitialProgressGuide') {
         return <ProgressGuide />
+      } else if (row.type === 'interstitialTrending') {
+        return <TrendingInterstitial />
       } else if (row.type === 'sliceItem') {
         const slice = row.slice
         if (slice.isFallbackMarker) {

src/view/screens/Search/Explore.tsx

@@ -24,6 +24,8 @@ import {
   ProfileCardFeedLoadingPlaceholder,
 } from '#/view/com/util/LoadingPlaceholder'
 import {UserAvatar} from '#/view/com/util/UserAvatar'
+import {ExploreRecommendations} from '#/screens/Search/components/ExploreRecommendations'
+import {ExploreTrendingTopics} from '#/screens/Search/components/ExploreTrendingTopics'
 import {atoms as a, useTheme, ViewStyleProp} from '#/alf'
 import {Button} from '#/components/Button'
 import * as FeedCard from '#/components/FeedCard'
@@ -239,6 +241,14 @@ type ExploreScreenItems =
       style?: ViewStyleProp['style']
       icon: React.ComponentType<SVGIconProps>
     }
+  | {
+      type: 'trendingTopics'
+      key: string
+    }
+  | {
+      type: 'recommendations'
+      key: string
+    }
   | {
       type: 'profile'
       key: string
@@ -325,17 +335,27 @@ export function Explore() {
   ])
 
   const items = React.useMemo<ExploreScreenItems[]>(() => {
-    const i: ExploreScreenItems[] = [
-      {
-        type: 'header',
-        key: 'suggested-follows-header',
-        title: _(msg`Suggested accounts`),
-        description: _(
-          msg`Follow more accounts to get connected to your interests and build your network.`,
-        ),
-        icon: Person,
-      },
-    ]
+    const i: ExploreScreenItems[] = []
+
+    i.push({
+      type: 'trendingTopics',
+      key: `trending-topics`,
+    })
+
+    i.push({
+      type: 'recommendations',
+      key: `recommendations`,
+    })
+
+    i.push({
+      type: 'header',
+      key: 'suggested-follows-header',
+      title: _(msg`Suggested accounts`),
+      description: _(
+        msg`Follow more accounts to get connected to your interests and build your network.`,
+      ),
+      icon: Person,
+    })
 
     if (profiles) {
       // Currently the responses contain duplicate items.
@@ -490,6 +510,12 @@ export function Explore() {
             />
           )
         }
+        case 'trendingTopics': {
+          return <ExploreTrendingTopics />
+        }
+        case 'recommendations': {
+          return <ExploreRecommendations />
+        }
         case 'profile': {
           return (
             <View style={[a.border_b, t.atoms.border_contrast_low]}>

src/view/shell/desktop/Feeds.tsx

@@ -14,7 +14,7 @@ import {createStaticClick, InlineLinkText} from '#/components/Link'
 export function DesktopFeeds() {
   const t = useTheme()
   const {_} = useLingui()
-  const {data: pinnedFeedInfos} = usePinnedFeedsInfos()
+  const {data: pinnedFeedInfos, error, isLoading} = usePinnedFeedsInfos()
   const selectedFeed = useSelectedFeed()
   const setSelectedFeed = useSetSelectedFeed()
   const navigation = useNavigation<NavigationProp>()
@@ -25,14 +25,40 @@ export function DesktopFeeds() {
     return getCurrentRoute(state)
   })
 
-  if (!pinnedFeedInfos) {
+  if (isLoading) {
+    return (
+      <View
+        style={[
+          {
+            gap: 12,
+          },
+        ]}>
+        {Array(5)
+          .fill(0)
+          .map((_, i) => (
+            <View
+              key={i}
+              style={[
+                a.rounded_sm,
+                t.atoms.bg_contrast_25,
+                {
+                  height: 16,
+                  width: i % 2 === 0 ? '60%' : '80%',
+                },
+              ]}
+            />
+          ))}
+      </View>
+    )
+  }
+
+  if (error || !pinnedFeedInfos) {
     return null
   }
 
   return (
     <View
       style={[
-        a.flex_1,
         web({
           gap: 10,
           /*

src/view/shell/desktop/RightNav.tsx

@@ -1,6 +1,8 @@
+import React from 'react'
 import {View} from 'react-native'
 import {msg, Trans} from '@lingui/macro'
 import {useLingui} from '@lingui/react'
+import {useNavigation} from '@react-navigation/core'
 
 import {FEEDBACK_FORM_URL, HELP_DESK_URL} from '#/lib/constants'
 import {useWebMediaQueries} from '#/lib/hooks/useWebMediaQueries'
@@ -8,17 +10,41 @@ import {useKawaiiMode} from '#/state/preferences/kawaii'
 import {useSession} from '#/state/session'
 import {DesktopFeeds} from '#/view/shell/desktop/Feeds'
 import {DesktopSearch} from '#/view/shell/desktop/Search'
+import {SidebarTrendingTopics} from '#/view/shell/desktop/SidebarTrendingTopics'
 import {atoms as a, useGutters, useTheme, web} from '#/alf'
+import {Divider} from '#/components/Divider'
 import {InlineLinkText} from '#/components/Link'
 import {ProgressGuideList} from '#/components/ProgressGuide/List'
 import {Text} from '#/components/Typography'
 
+function useWebQueryParams() {
+  const navigation = useNavigation()
+  const [params, setParams] = React.useState<Record<string, string>>({})
+
+  React.useEffect(() => {
+    return navigation.addListener('state', e => {
+      try {
+        const {state} = e.data
+        const lastRoute = state.routes[state.routes.length - 1]
+        const {params} = lastRoute
+        setParams(params)
+      } catch (e) {}
+    })
+  }, [navigation, setParams])
+
+  return params
+}
+
 export function DesktopRightNav({routeName}: {routeName: string}) {
   const t = useTheme()
   const {_} = useLingui()
   const {hasSession, currentAccount} = useSession()
   const kawaii = useKawaiiMode()
   const gutters = useGutters(['base', 0, 'base', 'wide'])
+  const isSearchScreen = routeName === 'Search'
+  const webqueryParams = useWebQueryParams()
+  const searchQuery = webqueryParams?.q
+  const showTrending = !isSearchScreen || (isSearchScreen && !!searchQuery)
 
   const {isTablet} = useWebMediaQueries()
   if (isTablet) {
@@ -29,6 +55,7 @@ export function DesktopRightNav({routeName}: {routeName: string}) {
     <View
       style={[
         gutters,
+        a.gap_lg,
         web({
           position: 'fixed',
           left: '50%',
@@ -43,21 +70,18 @@ export function DesktopRightNav({routeName}: {routeName: string}) {
           overflowY: 'auto',
         }),
       ]}>
-      {routeName !== 'Search' && (
-        <View style={[a.pb_lg]}>
-          <DesktopSearch />
-        </View>
-      )}
+      {!isSearchScreen && <DesktopSearch />}
+
       {hasSession && (
         <>
-          <ProgressGuideList style={[a.pb_xl]} />
-          <View
-            style={[a.pb_lg, a.mb_lg, a.border_b, t.atoms.border_contrast_low]}>
-            <DesktopFeeds />
-          </View>
+          <ProgressGuideList />
+          <DesktopFeeds />
+          <Divider />
         </>
       )}
 
+      {showTrending && <SidebarTrendingTopics />}
+
       <Text style={[a.leading_snug, t.atoms.text_contrast_low]}>
         {hasSession && (
           <>

src/view/shell/desktop/SidebarTrendingTopics.tsx

@@ -0,0 +1,104 @@
+import {View} from 'react-native'
+import {msg, Trans} from '@lingui/macro'
+import {useLingui} from '@lingui/react'
+
+import {
+  useTrendingSettings,
+  useTrendingSettingsApi,
+} from '#/state/preferences/trending'
+import {useTrendingTopics} from '#/state/queries/trending/useTrendingTopics'
+import {useTrendingConfig} from '#/state/trending-config'
+import {atoms as a, useTheme} from '#/alf'
+import {Button, ButtonIcon} from '#/components/Button'
+import {Divider} from '#/components/Divider'
+import {TimesLarge_Stroke2_Corner0_Rounded as X} from '#/components/icons/Times'
+import {Trending2_Stroke2_Corner2_Rounded as Graph} from '#/components/icons/Trending2'
+import * as Prompt from '#/components/Prompt'
+import {
+  TrendingTopic,
+  TrendingTopicLink,
+  TrendingTopicSkeleton,
+} from '#/components/TrendingTopics'
+import {Text} from '#/components/Typography'
+
+const TRENDING_LIMIT = 6
+
+export function SidebarTrendingTopics() {
+  const {enabled} = useTrendingConfig()
+  const {trendingDisabled} = useTrendingSettings()
+  return !enabled ? null : trendingDisabled ? null : <Inner />
+}
+
+function Inner() {
+  const t = useTheme()
+  const {_} = useLingui()
+  const trendingPrompt = Prompt.usePromptControl()
+  const {setTrendingDisabled} = useTrendingSettingsApi()
+  const {data: trending, error, isLoading} = useTrendingTopics()
+  const noTopics = !isLoading && !error && !trending?.topics?.length
+
+  return error || noTopics ? null : (
+    <>
+      <View style={[a.gap_sm, {paddingBottom: 2}]}>
+        <View style={[a.flex_row, a.align_center, a.gap_xs]}>
+          <Graph size="sm" />
+          <Text
+            style={[
+              a.flex_1,
+              a.text_sm,
+              a.font_bold,
+              t.atoms.text_contrast_medium,
+            ]}>
+            <Trans>Trending</Trans>
+          </Text>
+          <Button
+            label={_(msg`Hide trending topics`)}
+            size="tiny"
+            variant="ghost"
+            color="secondary"
+            shape="round"
+            onPress={() => trendingPrompt.open()}>
+            <ButtonIcon icon={X} />
+          </Button>
+        </View>
+
+        <View style={[a.flex_row, a.flex_wrap, {gap: '6px 4px'}]}>
+          {isLoading ? (
+            Array(TRENDING_LIMIT)
+              .fill(0)
+              .map((_n, i) => (
+                <TrendingTopicSkeleton key={i} size="small" index={i} />
+              ))
+          ) : !trending?.topics ? null : (
+            <>
+              {trending.topics.slice(0, TRENDING_LIMIT).map(topic => (
+                <TrendingTopicLink key={topic.link} topic={topic}>
+                  {({hovered}) => (
+                    <TrendingTopic
+                      size="small"
+                      topic={topic}
+                      style={[
+                        hovered && [
+                          t.atoms.border_contrast_high,
+                          t.atoms.bg_contrast_25,
+                        ],
+                      ]}
+                    />
+                  )}
+                </TrendingTopicLink>
+              ))}
+            </>
+          )}
+        </View>
+      </View>
+      <Prompt.Basic
+        control={trendingPrompt}
+        title={_(msg`Hide trending topics?`)}
+        description={_(msg`You can update this later from your settings.`)}
+        confirmButtonCta={_(msg`Hide`)}
+        onConfirm={() => setTrendingDisabled(true)}
+      />
+      <Divider />
+    </>
+  )
+}

yarn.lock

@@ -72,6 +72,20 @@
     tlds "^1.234.0"
     zod "^3.23.8"
 
+"@atproto/api@^0.13.21":
+  version "0.13.21"
+  resolved "https://registry.yarnpkg.com/@atproto/api/-/api-0.13.21.tgz#8ee27a07e5a024b5bf32408d9bd623dd598ad1cc"
+  integrity sha512-iOxSj2YS3Fx9IPz1NivKrSsdYPNbBgpnUH7+WhKYAMvDFDUe2PZe7taau8wsUjJAu/H3S0Mk2TDh5e/7tCRwHA==
+  dependencies:
+    "@atproto/common-web" "^0.3.1"
+    "@atproto/lexicon" "^0.4.4"
+    "@atproto/syntax" "^0.3.1"
+    "@atproto/xrpc" "^0.6.5"
+    await-lock "^2.2.2"
+    multiformats "^9.9.0"
+    tlds "^1.234.0"
+    zod "^3.23.8"
+
 "@atproto/aws@^0.2.10":
   version "0.2.10"
   resolved "https://registry.yarnpkg.com/@atproto/aws/-/aws-0.2.10.tgz#e0b888fd50308cc24b7086cf3ec209587c13bbe4"
@@ -3247,7 +3261,7 @@
     "@babel/parser" "^7.25.9"
     "@babel/types" "^7.25.9"
 
-"@babel/traverse--for-generate-function-map@npm:@babel/traverse@^7.25.3":
+"@babel/traverse--for-generate-function-map@npm:@babel/traverse@^7.25.3", "@babel/traverse@^7.25.3", "@babel/traverse@^7.25.9":
   version "7.25.9"
   resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.25.9.tgz#a50f8fe49e7f69f53de5bea7e413cd35c5e13c84"
   integrity sha512-ZCuvfwOwlz/bawvAuvcj8rrithP2/N55Tzz342AkTvq4qaWbGfmCk/tKhNaV2cthijKrPAA8SRJV5WWe7IBMJw==
@@ -3308,19 +3322,6 @@
     debug "^4.3.1"
     globals "^11.1.0"
 
-"@babel/traverse@^7.25.3", "@babel/traverse@^7.25.9":
-  version "7.25.9"
-  resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.25.9.tgz#a50f8fe49e7f69f53de5bea7e413cd35c5e13c84"
-  integrity sha512-ZCuvfwOwlz/bawvAuvcj8rrithP2/N55Tzz342AkTvq4qaWbGfmCk/tKhNaV2cthijKrPAA8SRJV5WWe7IBMJw==
-  dependencies:
-    "@babel/code-frame" "^7.25.9"
-    "@babel/generator" "^7.25.9"
-    "@babel/parser" "^7.25.9"
-    "@babel/template" "^7.25.9"
-    "@babel/types" "^7.25.9"
-    debug "^4.3.1"
-    globals "^11.1.0"
-
 "@babel/types@^7.0.0", "@babel/types@^7.20.0", "@babel/types@^7.20.7", "@babel/types@^7.22.10", "@babel/types@^7.22.5", "@babel/types@^7.3.3", "@babel/types@^7.4.4":
   version "7.22.10"
   resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.22.10.tgz#4a9e76446048f2c66982d1a989dd12b8a2d2dc03"
@@ -17456,16 +17457,7 @@ string-natural-compare@^3.0.1:
   resolved "https://registry.yarnpkg.com/string-natural-compare/-/string-natural-compare-3.0.1.tgz#7a42d58474454963759e8e8b7ae63d71c1e7fdf4"
   integrity sha512-n3sPwynL1nwKi3WJ6AIsClwBMa0zTi54fn2oLU6ndfTSIO05xaznjSf15PcBZU6FNWbmN5Q6cxT4V5hGvB4taw==
 
-"string-width-cjs@npm:string-width@^4.2.0":
-  version "4.2.3"
-  resolved "https://registry.yarnpkg.com/string-width/-/string-width-4.2.3.tgz#269c7117d27b05ad2e536830a8ec895ef9c6d010"
-  integrity sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==
-  dependencies:
-    emoji-regex "^8.0.0"
-    is-fullwidth-code-point "^3.0.0"
-    strip-ansi "^6.0.1"
-
-string-width@^4.1.0, string-width@^4.2.0, string-width@^4.2.3:
+"string-width-cjs@npm:string-width@^4.2.0", string-width@^4.1.0, string-width@^4.2.0, string-width@^4.2.3:
   version "4.2.3"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-4.2.3.tgz#269c7117d27b05ad2e536830a8ec895ef9c6d010"
   integrity sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==
@@ -17565,7 +17557,7 @@ string_decoder@~1.1.1:
   dependencies:
     safe-buffer "~5.1.0"
 
-"strip-ansi-cjs@npm:strip-ansi@^6.0.1":
+"strip-ansi-cjs@npm:strip-ansi@^6.0.1", strip-ansi@^6.0.0, strip-ansi@^6.0.1:
   version "6.0.1"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-6.0.1.tgz#9e26c63d30f53443e9489495b2105d37b67a85d9"
   integrity sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==
@@ -17579,13 +17571,6 @@ strip-ansi@^5.2.0:
   dependencies:
     ansi-regex "^4.1.0"
 
-strip-ansi@^6.0.0, strip-ansi@^6.0.1:
-  version "6.0.1"
-  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-6.0.1.tgz#9e26c63d30f53443e9489495b2105d37b67a85d9"
-  integrity sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==
-  dependencies:
-    ansi-regex "^5.0.1"
-
 strip-ansi@^7.0.1:
   version "7.1.0"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-7.1.0.tgz#d5b6568ca689d8561370b0707685d22434faff45"
@@ -18860,7 +18845,7 @@ wordwrap@^1.0.0:
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
   integrity sha512-gvVzJFlPycKc5dZN4yPkP8w7Dc37BtP1yczEneOb4uq34pXZcvrtRTmWV8W+Ume+XCxKgbjM+nevkyFPMybd4Q==
 
-"wrap-ansi-cjs@npm:wrap-ansi@^7.0.0":
+"wrap-ansi-cjs@npm:wrap-ansi@^7.0.0", wrap-ansi@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-7.0.0.tgz#67e145cff510a6a6984bdf1152911d69d2eb9e43"
   integrity sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==
@@ -18878,15 +18863,6 @@ wrap-ansi@^6.2.0:
     string-width "^4.1.0"
     strip-ansi "^6.0.0"
 
-wrap-ansi@^7.0.0:
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-7.0.0.tgz#67e145cff510a6a6984bdf1152911d69d2eb9e43"
-  integrity sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==
-  dependencies:
-    ansi-styles "^4.0.0"
-    string-width "^4.1.0"
-    strip-ansi "^6.0.0"
-
 wrap-ansi@^8.0.1, wrap-ansi@^8.1.0:
   version "8.1.0"
   resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-8.1.0.tgz#56dc22368ee570face1b49819975d9b9a5ead214"