1 files changed, 109 insertions, 0 deletions
diff --git a/src/components/LikedByList.tsx b/src/components/LikedByList.tsx
new file mode 100644
index 000000000..bd1213639
--- /dev/null
+++ b/src/components/LikedByList.tsx
@@ -0,0 +1,109 @@
+import React from 'react'
+import {View} from 'react-native'
+import {AppBskyFeedGetLikes as GetLikes} from '@atproto/api'
+import {Trans} from '@lingui/macro'
+
+import {logger} from '#/logger'
+import {List} from '#/view/com/util/List'
+import {ProfileCardWithFollowBtn} from '#/view/com/profile/ProfileCard'
+import {useResolveUriQuery} from '#/state/queries/resolve-uri'
+import {useLikedByQuery} from '#/state/queries/post-liked-by'
+import {useInitialNumToRender} from 'lib/hooks/useInitialNumToRender'
+import {ListFooter} from '#/components/Lists'
+
+import {atoms as a, useTheme} from '#/alf'
+import {Loader} from '#/components/Loader'
+import {Text} from '#/components/Typography'
+
+export function LikedByList({uri}: {uri: string}) {
+  const t = useTheme()
+  const [isPTRing, setIsPTRing] = React.useState(false)
+  const {
+    data: resolvedUri,
+    error: resolveError,
+    isFetching: isFetchingResolvedUri,
+  } = useResolveUriQuery(uri)
+  const {
+    data,
+    isFetching,
+    isFetched,
+    isRefetching,
+    hasNextPage,
+    fetchNextPage,
+    isError,
+    error: likedByError,
+    refetch,
+  } = useLikedByQuery(resolvedUri?.uri)
+  const likes = React.useMemo(() => {
+    if (data?.pages) {
+      return data.pages.flatMap(page => page.likes)
+    }
+    return []
+  }, [data])
+  const initialNumToRender = useInitialNumToRender()
+  const error = resolveError || likedByError
+
+  const onRefresh = React.useCallback(async () => {
+    setIsPTRing(true)
+    try {
+      await refetch()
+    } catch (err) {
+      logger.error('Failed to refresh likes', {message: err})
+    }
+    setIsPTRing(false)
+  }, [refetch, setIsPTRing])
+
+  const onEndReached = React.useCallback(async () => {
+    if (isFetching || !hasNextPage || isError) return
+    try {
+      await fetchNextPage()
+    } catch (err) {
+      logger.error('Failed to load more likes', {message: err})
+    }
+  }, [isFetching, hasNextPage, isError, fetchNextPage])
+
+  const renderItem = React.useCallback(({item}: {item: GetLikes.Like}) => {
+    return (
+      <ProfileCardWithFollowBtn key={item.actor.did} profile={item.actor} />
+    )
+  }, [])
+
+  if (isFetchingResolvedUri || !isFetched) {
+    return (
+      <View style={[a.w_full, a.align_center, a.p_lg]}>
+        <Loader size="xl" />
+      </View>
+    )
+  }
+
+  return likes.length ? (
+    <List
+      data={likes}
+      keyExtractor={item => item.actor.did}
+      refreshing={isPTRing}
+      onRefresh={onRefresh}
+      onEndReached={onEndReached}
+      onEndReachedThreshold={3}
+      renderItem={renderItem}
+      initialNumToRender={initialNumToRender}
+      ListFooterComponent={() => (
+        <ListFooter
+          isFetching={isFetching && !isRefetching}
+          isError={isError}
+          error={error ? error.toString() : undefined}
+          onRetry={fetchNextPage}
+        />
+      )}
+    />
+  ) : (
+    <View style={[a.p_lg]}>
+      <View style={[a.p_lg, a.rounded_sm, t.atoms.bg_contrast_25]}>
+        <Text style={[a.text_md, a.leading_snug]}>
+          <Trans>
+            Nobody has liked this yet. Maybe you should be the first!
+          </Trans>
+        </Text>
+      </View>
+    </View>
+  )
+}