1 files changed, 131 insertions, 0 deletions
diff --git a/src/components/LikesDialog.tsx b/src/components/LikesDialog.tsx
new file mode 100644
index 000000000..94a3f27e2
--- /dev/null
+++ b/src/components/LikesDialog.tsx
@@ -0,0 +1,131 @@
+import React, {useMemo, useCallback} from 'react'
+import {ActivityIndicator, FlatList, View} from 'react-native'
+import {msg, Trans} from '@lingui/macro'
+import {useLingui} from '@lingui/react'
+import {AppBskyFeedGetLikes as GetLikes} from '@atproto/api'
+
+import {useResolveUriQuery} from '#/state/queries/resolve-uri'
+import {useLikedByQuery} from '#/state/queries/post-liked-by'
+import {cleanError} from '#/lib/strings/errors'
+import {logger} from '#/logger'
+
+import {atoms as a, useTheme} from '#/alf'
+import {Text} from '#/components/Typography'
+import * as Dialog from '#/components/Dialog'
+import {ErrorMessage} from '#/view/com/util/error/ErrorMessage'
+import {ProfileCardWithFollowBtn} from '#/view/com/profile/ProfileCard'
+import {Loader} from '#/components/Loader'
+
+interface LikesDialogProps {
+  control: Dialog.DialogOuterProps['control']
+  uri: string
+}
+
+export function LikesDialog(props: LikesDialogProps) {
+  return (
+    <Dialog.Outer control={props.control}>
+      <Dialog.Handle />
+
+      <LikesDialogInner {...props} />
+    </Dialog.Outer>
+  )
+}
+
+export function LikesDialogInner({control, uri}: LikesDialogProps) {
+  const {_} = useLingui()
+  const t = useTheme()
+
+  const {
+    data: resolvedUri,
+    error: resolveError,
+    isFetched: hasFetchedResolvedUri,
+  } = useResolveUriQuery(uri)
+  const {
+    data,
+    isFetching: isFetchingLikedBy,
+    isFetched: hasFetchedLikedBy,
+    isFetchingNextPage,
+    hasNextPage,
+    fetchNextPage,
+    isError,
+    error: likedByError,
+  } = useLikedByQuery(resolvedUri?.uri)
+
+  const isLoading = !hasFetchedResolvedUri || !hasFetchedLikedBy
+  const likes = useMemo(() => {
+    if (data?.pages) {
+      return data.pages.flatMap(page => page.likes)
+    }
+    return []
+  }, [data])
+
+  const onEndReached = useCallback(async () => {
+    if (isFetchingLikedBy || !hasNextPage || isError) return
+    try {
+      await fetchNextPage()
+    } catch (err) {
+      logger.error('Failed to load more likes', {message: err})
+    }
+  }, [isFetchingLikedBy, hasNextPage, isError, fetchNextPage])
+
+  const renderItem = useCallback(
+    ({item}: {item: GetLikes.Like}) => {
+      return (
+        <ProfileCardWithFollowBtn
+          key={item.actor.did}
+          profile={item.actor}
+          onPress={() => control.close()}
+        />
+      )
+    },
+    [control],
+  )
+
+  return (
+    <Dialog.Inner label={_(msg`Users that have liked this content or profile`)}>
+      <Text style={[a.text_2xl, a.font_bold, a.leading_tight, a.pb_lg]}>
+        <Trans>Liked by</Trans>
+      </Text>
+
+      {isLoading ? (
+        <View style={{minHeight: 300}}>
+          <Loader size="xl" />
+        </View>
+      ) : resolveError || likedByError || !data ? (
+        <ErrorMessage message={cleanError(resolveError || likedByError)} />
+      ) : likes.length === 0 ? (
+        <View style={[t.atoms.bg_contrast_50, a.px_md, a.py_xl, a.rounded_md]}>
+          <Text style={[a.text_center]}>
+            <Trans>
+              Nobody has liked this yet. Maybe you should be the first!
+            </Trans>
+          </Text>
+        </View>
+      ) : (
+        <FlatList
+          data={likes}
+          keyExtractor={item => item.actor.did}
+          onEndReached={onEndReached}
+          renderItem={renderItem}
+          initialNumToRender={15}
+          ListFooterComponent={
+            <ListFooterComponent isFetching={isFetchingNextPage} />
+          }
+        />
+      )}
+
+      <Dialog.Close />
+    </Dialog.Inner>
+  )
+}
+
+function ListFooterComponent({isFetching}: {isFetching: boolean}) {
+  if (isFetching) {
+    return (
+      <View style={a.pt_lg}>
+        <ActivityIndicator />
+      </View>
+    )
+  }
+  return null
+}