From 372e20efa36c52a04cf2aa48816b82a1d96e0711 Mon Sep 17 00:00:00 2001
From: Samuel Newman <mozzius@protonmail.com>
Date: Tue, 9 Sep 2025 22:40:25 +0300
Subject: ALF saved feeds screen (#8844)

---
 src/screens/SavedFeeds.tsx | 415 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 415 insertions(+)
 create mode 100644 src/screens/SavedFeeds.tsx

(limited to 'src/screens/SavedFeeds.tsx')

diff --git a/src/screens/SavedFeeds.tsx b/src/screens/SavedFeeds.tsx
new file mode 100644
index 000000000..1baceb4f4
--- /dev/null
+++ b/src/screens/SavedFeeds.tsx
@@ -0,0 +1,415 @@
+import {useCallback, useState} from 'react'
+import {View} from 'react-native'
+import Animated, {LinearTransition} from 'react-native-reanimated'
+import {type AppBskyActorDefs} from '@atproto/api'
+import {TID} from '@atproto/common-web'
+import {msg, Trans} from '@lingui/macro'
+import {useLingui} from '@lingui/react'
+import {useFocusEffect} from '@react-navigation/native'
+import {useNavigation} from '@react-navigation/native'
+import {type NativeStackScreenProps} from '@react-navigation/native-stack'
+
+import {RECOMMENDED_SAVED_FEEDS, TIMELINE_SAVED_FEED} from '#/lib/constants'
+import {useHaptics} from '#/lib/haptics'
+import {
+  type CommonNavigatorParams,
+  type NavigationProp,
+} from '#/lib/routes/types'
+import {logger} from '#/logger'
+import {
+  useOverwriteSavedFeedsMutation,
+  usePreferencesQuery,
+} from '#/state/queries/preferences'
+import {type UsePreferencesQueryResponse} from '#/state/queries/preferences/types'
+import {useSetMinimalShellMode} from '#/state/shell'
+import {FeedSourceCard} from '#/view/com/feeds/FeedSourceCard'
+import * as Toast from '#/view/com/util/Toast'
+import {NoFollowingFeed} from '#/screens/Feeds/NoFollowingFeed'
+import {NoSavedFeedsOfAnyType} from '#/screens/Feeds/NoSavedFeedsOfAnyType'
+import {atoms as a, useBreakpoints, useTheme} from '#/alf'
+import {Admonition} from '#/components/Admonition'
+import {Button, ButtonIcon, ButtonText} from '#/components/Button'
+import {
+  ArrowBottom_Stroke2_Corner0_Rounded as ArrowDownIcon,
+  ArrowTop_Stroke2_Corner0_Rounded as ArrowUpIcon,
+} from '#/components/icons/Arrow'
+import {FilterTimeline_Stroke2_Corner0_Rounded as FilterTimeline} from '#/components/icons/FilterTimeline'
+import {FloppyDisk_Stroke2_Corner0_Rounded as SaveIcon} from '#/components/icons/FloppyDisk'
+import {Pin_Filled_Corner0_Rounded as PinIcon} from '#/components/icons/Pin'
+import {Trash_Stroke2_Corner0_Rounded as TrashIcon} from '#/components/icons/Trash'
+import * as Layout from '#/components/Layout'
+import {InlineLinkText} from '#/components/Link'
+import {Loader} from '#/components/Loader'
+import {Text} from '#/components/Typography'
+
+type Props = NativeStackScreenProps<CommonNavigatorParams, 'SavedFeeds'>
+export function SavedFeeds({}: Props) {
+  const {data: preferences} = usePreferencesQuery()
+  if (!preferences) {
+    return <View />
+  }
+  return <SavedFeedsInner preferences={preferences} />
+}
+
+function SavedFeedsInner({
+  preferences,
+}: {
+  preferences: UsePreferencesQueryResponse
+}) {
+  const t = useTheme()
+  const {_} = useLingui()
+  const {gtMobile} = useBreakpoints()
+  const setMinimalShellMode = useSetMinimalShellMode()
+  const {mutateAsync: overwriteSavedFeeds, isPending: isOverwritePending} =
+    useOverwriteSavedFeedsMutation()
+  const navigation = useNavigation<NavigationProp>()
+
+  /*
+   * Use optimistic data if exists and no error, otherwise fallback to remote
+   * data
+   */
+  const [currentFeeds, setCurrentFeeds] = useState(
+    () => preferences.savedFeeds || [],
+  )
+  const hasUnsavedChanges = currentFeeds !== preferences.savedFeeds
+  const pinnedFeeds = currentFeeds.filter(f => f.pinned)
+  const unpinnedFeeds = currentFeeds.filter(f => !f.pinned)
+  const noSavedFeedsOfAnyType = pinnedFeeds.length + unpinnedFeeds.length === 0
+  const noFollowingFeed =
+    currentFeeds.every(f => f.type !== 'timeline') && !noSavedFeedsOfAnyType
+
+  useFocusEffect(
+    useCallback(() => {
+      setMinimalShellMode(false)
+    }, [setMinimalShellMode]),
+  )
+
+  const onSaveChanges = async () => {
+    try {
+      await overwriteSavedFeeds(currentFeeds)
+      Toast.show(_(msg({message: 'Feeds updated!', context: 'toast'})))
+      if (navigation.canGoBack()) {
+        navigation.goBack()
+      } else {
+        navigation.navigate('Feeds')
+      }
+    } catch (e) {
+      Toast.show(_(msg`There was an issue contacting the server`), 'xmark')
+      logger.error('Failed to toggle pinned feed', {message: e})
+    }
+  }
+
+  return (
+    <Layout.Screen>
+      <Layout.Header.Outer>
+        <Layout.Header.BackButton />
+        <Layout.Header.Content align="left">
+          <Layout.Header.TitleText>
+            <Trans>Feeds</Trans>
+          </Layout.Header.TitleText>
+        </Layout.Header.Content>
+        <Button
+          testID="saveChangesBtn"
+          size="small"
+          color={hasUnsavedChanges ? 'primary' : 'secondary'}
+          onPress={onSaveChanges}
+          label={_(msg`Save changes`)}
+          disabled={isOverwritePending || !hasUnsavedChanges}>
+          <ButtonIcon icon={isOverwritePending ? Loader : SaveIcon} />
+          <ButtonText>
+            {gtMobile ? <Trans>Save changes</Trans> : <Trans>Save</Trans>}
+          </ButtonText>
+        </Button>
+      </Layout.Header.Outer>
+
+      <Layout.Content>
+        {noSavedFeedsOfAnyType && (
+          <View style={[t.atoms.border_contrast_low, a.border_b]}>
+            <NoSavedFeedsOfAnyType
+              onAddRecommendedFeeds={() =>
+                setCurrentFeeds(
+                  RECOMMENDED_SAVED_FEEDS.map(f => ({
+                    ...f,
+                    id: TID.nextStr(),
+                  })),
+                )
+              }
+            />
+          </View>
+        )}
+
+        <SectionHeaderText>
+          <Trans>Pinned Feeds</Trans>
+        </SectionHeaderText>
+
+        {preferences ? (
+          !pinnedFeeds.length ? (
+            <View style={[a.flex_1, a.p_lg]}>
+              <Admonition type="info">
+                <Trans>You don't have any pinned feeds.</Trans>
+              </Admonition>
+            </View>
+          ) : (
+            pinnedFeeds.map(f => (
+              <ListItem
+                key={f.id}
+                feed={f}
+                isPinned
+                currentFeeds={currentFeeds}
+                setCurrentFeeds={setCurrentFeeds}
+                preferences={preferences}
+              />
+            ))
+          )
+        ) : (
+          <View style={[a.w_full, a.py_2xl, a.align_center]}>
+            <Loader size="xl" />
+          </View>
+        )}
+
+        {noFollowingFeed && (
+          <View style={[t.atoms.border_contrast_low, a.border_b]}>
+            <NoFollowingFeed
+              onAddFeed={() =>
+                setCurrentFeeds(feeds => [
+                  ...feeds,
+                  {...TIMELINE_SAVED_FEED, id: TID.next().toString()},
+                ])
+              }
+            />
+          </View>
+        )}
+
+        <SectionHeaderText>
+          <Trans>Saved Feeds</Trans>
+        </SectionHeaderText>
+
+        {preferences ? (
+          !unpinnedFeeds.length ? (
+            <View style={[a.flex_1, a.p_lg]}>
+              <Admonition type="info">
+                <Trans>You don't have any saved feeds.</Trans>
+              </Admonition>
+            </View>
+          ) : (
+            unpinnedFeeds.map(f => (
+              <ListItem
+                key={f.id}
+                feed={f}
+                isPinned={false}
+                currentFeeds={currentFeeds}
+                setCurrentFeeds={setCurrentFeeds}
+                preferences={preferences}
+              />
+            ))
+          )
+        ) : (
+          <View style={[a.w_full, a.py_2xl, a.align_center]}>
+            <Loader size="xl" />
+          </View>
+        )}
+
+        <View style={[a.px_lg, a.py_xl]}>
+          <Text
+            style={[a.text_sm, t.atoms.text_contrast_medium, a.leading_snug]}>
+            <Trans>
+              Feeds are custom algorithms that users build with a little coding
+              expertise.{' '}
+              <InlineLinkText
+                to="https://github.com/bluesky-social/feed-generator"
+                label={_(msg`See this guide`)}
+                disableMismatchWarning
+                style={[a.leading_snug]}>
+                See this guide
+              </InlineLinkText>{' '}
+              for more information.
+            </Trans>
+          </Text>
+        </View>
+      </Layout.Content>
+    </Layout.Screen>
+  )
+}
+
+function ListItem({
+  feed,
+  isPinned,
+  currentFeeds,
+  setCurrentFeeds,
+}: {
+  feed: AppBskyActorDefs.SavedFeed
+  isPinned: boolean
+  currentFeeds: AppBskyActorDefs.SavedFeed[]
+  setCurrentFeeds: React.Dispatch<AppBskyActorDefs.SavedFeed[]>
+  preferences: UsePreferencesQueryResponse
+}) {
+  const {_} = useLingui()
+  const t = useTheme()
+  const playHaptic = useHaptics()
+  const feedUri = feed.value
+
+  const onTogglePinned = async () => {
+    playHaptic()
+    setCurrentFeeds(
+      currentFeeds.map(f =>
+        f.id === feed.id ? {...feed, pinned: !feed.pinned} : f,
+      ),
+    )
+  }
+
+  const onPressUp = async () => {
+    if (!isPinned) return
+
+    const nextFeeds = currentFeeds.slice()
+    const ids = currentFeeds.map(f => f.id)
+    const index = ids.indexOf(feed.id)
+    const nextIndex = index - 1
+
+    if (index === -1 || index === 0) return
+    ;[nextFeeds[index], nextFeeds[nextIndex]] = [
+      nextFeeds[nextIndex],
+      nextFeeds[index],
+    ]
+
+    setCurrentFeeds(nextFeeds)
+  }
+
+  const onPressDown = async () => {
+    if (!isPinned) return
+
+    const nextFeeds = currentFeeds.slice()
+    const ids = currentFeeds.map(f => f.id)
+    const index = ids.indexOf(feed.id)
+    const nextIndex = index + 1
+
+    if (index === -1 || index >= nextFeeds.filter(f => f.pinned).length - 1)
+      return
+    ;[nextFeeds[index], nextFeeds[nextIndex]] = [
+      nextFeeds[nextIndex],
+      nextFeeds[index],
+    ]
+
+    setCurrentFeeds(nextFeeds)
+  }
+
+  const onPressRemove = async () => {
+    playHaptic()
+    setCurrentFeeds(currentFeeds.filter(f => f.id !== feed.id))
+  }
+
+  return (
+    <Animated.View
+      style={[a.flex_row, a.border_b, t.atoms.border_contrast_low]}
+      layout={LinearTransition.duration(100)}>
+      {feed.type === 'timeline' ? (
+        <FollowingFeedCard />
+      ) : (
+        <FeedSourceCard
+          key={feedUri}
+          feedUri={feedUri}
+          style={[isPinned && a.pr_sm]}
+          showMinimalPlaceholder
+          hideTopBorder={true}
+        />
+      )}
+      <View style={[a.pr_lg, a.flex_row, a.align_center, a.gap_sm]}>
+        {isPinned ? (
+          <>
+            <Button
+              testID={`feed-${feed.type}-moveUp`}
+              label={_(msg`Move feed up`)}
+              onPress={onPressUp}
+              size="small"
+              color="secondary"
+              shape="square">
+              <ButtonIcon icon={ArrowUpIcon} />
+            </Button>
+            <Button
+              testID={`feed-${feed.type}-moveDown`}
+              label={_(msg`Move feed down`)}
+              onPress={onPressDown}
+              size="small"
+              color="secondary"
+              shape="square">
+              <ButtonIcon icon={ArrowDownIcon} />
+            </Button>
+          </>
+        ) : (
+          <Button
+            testID={`feed-${feedUri}-toggleSave`}
+            label={_(msg`Remove from my feeds`)}
+            onPress={onPressRemove}
+            size="small"
+            color="secondary"
+            variant="ghost"
+            shape="square">
+            <ButtonIcon icon={TrashIcon} />
+          </Button>
+        )}
+        <Button
+          testID={`feed-${feed.type}-togglePin`}
+          label={isPinned ? _(msg`Unpin feed`) : _(msg`Pin feed`)}
+          onPress={onTogglePinned}
+          size="small"
+          color={isPinned ? 'primary_subtle' : 'secondary'}
+          shape="square">
+          <ButtonIcon icon={PinIcon} />
+        </Button>
+      </View>
+    </Animated.View>
+  )
+}
+
+function SectionHeaderText({children}: {children: React.ReactNode}) {
+  const t = useTheme()
+  // eslint-disable-next-line bsky-internal/avoid-unwrapped-text
+  return (
+    <View
+      style={[
+        a.flex_row,
+        a.flex_1,
+        a.px_lg,
+        a.pt_2xl,
+        a.pb_md,
+        a.border_b,
+        t.atoms.border_contrast_low,
+      ]}>
+      <Text style={[a.text_xl, a.font_heavy, a.leading_snug]}>{children}</Text>
+    </View>
+  )
+}
+
+function FollowingFeedCard() {
+  const t = useTheme()
+  return (
+    <View style={[a.flex_row, a.align_center, a.flex_1, a.p_lg]}>
+      <View
+        style={[
+          a.align_center,
+          a.justify_center,
+          a.rounded_sm,
+          a.mr_md,
+          {
+            width: 36,
+            height: 36,
+            backgroundColor: t.palette.primary_500,
+          },
+        ]}>
+        <FilterTimeline
+          style={[
+            {
+              width: 22,
+              height: 22,
+            },
+          ]}
+          fill={t.palette.white}
+        />
+      </View>
+      <View style={[a.flex_1, a.flex_row, a.gap_sm, a.align_center]}>
+        <Text style={[a.text_sm, a.font_bold, a.leading_snug]}>
+          <Trans context="feed-name">Following</Trans>
+        </Text>
+      </View>
+    </View>
+  )
+}
-- 
cgit 1.4.1