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import React from 'react'
import {ListRenderItemInfo, Pressable} from 'react-native'
import {atoms as a} from '#/alf'
import {useFocusEffect} from '@react-navigation/native'
import {useSetMinimalShellMode} from 'state/shell'
import {ViewHeader} from 'view/com/util/ViewHeader'
import {NativeStackScreenProps} from '@react-navigation/native-stack'
import {CommonNavigatorParams} from 'lib/routes/types'
import {useSearchPostsQuery} from 'state/queries/search-posts'
import {Post} from 'view/com/post/Post'
import {PostView} from '@atproto/api/dist/client/types/app/bsky/feed/defs'
import {enforceLen} from 'lib/strings/helpers'
import {
ListFooter,
ListHeaderDesktop,
ListMaybePlaceholder,
} from '#/components/Lists'
import {List} from 'view/com/util/List'
import {msg} from '@lingui/macro'
import {useLingui} from '@lingui/react'
import {sanitizeHandle} from 'lib/strings/handles'
import {CenteredView} from 'view/com/util/Views'
import {ArrowOutOfBox_Stroke2_Corner0_Rounded} from '#/components/icons/ArrowOutOfBox'
import {shareUrl} from 'lib/sharing'
import {HITSLOP_10} from 'lib/constants'
const renderItem = ({item}: ListRenderItemInfo<PostView>) => {
return <Post post={item} />
}
const keyExtractor = (item: PostView, index: number) => {
return `${item.uri}-${index}`
}
export default function HashtagScreen({
route,
}: NativeStackScreenProps<CommonNavigatorParams, 'Hashtag'>) {
const {tag, author} = route.params
const setMinimalShellMode = useSetMinimalShellMode()
const {_} = useLingui()
const [isPTR, setIsPTR] = React.useState(false)
const fullTag = React.useMemo(() => {
return `#${tag.replaceAll('%23', '#')}`
}, [tag])
const queryParam = React.useMemo(() => {
if (!author) return fullTag
return `${fullTag} from:${sanitizeHandle(author)}`
}, [fullTag, author])
const headerTitle = React.useMemo(() => {
return enforceLen(fullTag.toLowerCase(), 24, true, 'middle')
}, [fullTag])
const sanitizedAuthor = React.useMemo(() => {
if (!author) return
return sanitizeHandle(author)
}, [author])
const {
data,
isFetching,
isLoading,
isRefetching,
isError,
error,
refetch,
fetchNextPage,
hasNextPage,
} = useSearchPostsQuery({query: queryParam})
const posts = React.useMemo(() => {
return data?.pages.flatMap(page => page.posts) || []
}, [data])
useFocusEffect(
React.useCallback(() => {
setMinimalShellMode(false)
}, [setMinimalShellMode]),
)
const onShare = React.useCallback(() => {
const url = new URL('https://bsky.app')
url.pathname = `/hashtag/${tag}`
if (author) {
url.searchParams.set('author', author)
}
shareUrl(url.toString())
}, [tag, author])
const onRefresh = React.useCallback(async () => {
setIsPTR(true)
await refetch()
setIsPTR(false)
}, [refetch])
const onEndReached = React.useCallback(() => {
if (isFetching || !hasNextPage || error) return
fetchNextPage()
}, [isFetching, hasNextPage, error, fetchNextPage])
return (
<CenteredView style={a.flex_1}>
<ViewHeader
title={headerTitle}
subtitle={author ? _(msg`From @${sanitizedAuthor}`) : undefined}
canGoBack={true}
renderButton={() => (
<Pressable
accessibilityRole="button"
onPress={onShare}
hitSlop={HITSLOP_10}>
<ArrowOutOfBox_Stroke2_Corner0_Rounded
size="lg"
onPress={onShare}
/>
</Pressable>
)}
/>
<ListMaybePlaceholder
isLoading={isLoading || isRefetching}
isError={isError}
isEmpty={posts.length < 1}
onRetry={refetch}
empty={_(msg`We couldn't find any results for that hashtag.`)}
/>
{!isLoading && posts.length > 0 && (
<List<PostView>
data={posts}
renderItem={renderItem}
keyExtractor={keyExtractor}
refreshing={isPTR}
onRefresh={onRefresh}
onEndReached={onEndReached}
onEndReachedThreshold={4}
// @ts-ignore web only -prf
desktopFixedHeight
ListHeaderComponent={
<ListHeaderDesktop
title={headerTitle}
subtitle={author ? _(msg`From @${sanitizedAuthor}`) : undefined}
/>
}
ListFooterComponent={
<ListFooter
isFetching={isFetching && !isRefetching}
isError={isError}
error={error?.name}
onRetry={fetchNextPage}
/>
}
/>
)}
</CenteredView>
)
}
|
