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import React, {useState, useMemo} from 'react'
import {StyleProp, StyleSheet, View, ViewStyle} from 'react-native'
import {
AppBskyFeedDefs,
AppBskyFeedPost,
AtUri,
moderatePost,
PostModeration,
RichText as RichTextAPI,
} from '@atproto/api'
import {FontAwesomeIcon} from '@fortawesome/react-native-fontawesome'
import {Link, TextLink} from '../util/Link'
import {UserInfoText} from '../util/UserInfoText'
import {PostMeta} from '../util/PostMeta'
import {PostEmbeds} from '../util/post-embeds'
import {PostCtrls} from '../util/post-ctrls/PostCtrls'
import {ContentHider} from '../util/moderation/ContentHider'
import {PostAlerts} from '../util/moderation/PostAlerts'
import {Text} from '../util/text/Text'
import {RichText} from '../util/text/RichText'
import {PreviewableUserAvatar} from '../util/UserAvatar'
import {s, colors} from 'lib/styles'
import {usePalette} from 'lib/hooks/usePalette'
import {makeProfileLink} from 'lib/routes/links'
import {MAX_POST_LINES} from 'lib/constants'
import {countLines} from 'lib/strings/helpers'
import {useModerationOpts} from '#/state/queries/preferences'
import {useComposerControls} from '#/state/shell/composer'
import {Shadow, usePostShadow, POST_TOMBSTONE} from '#/state/cache/post-shadow'
export function Post({
post,
showReplyLine,
style,
}: {
post: AppBskyFeedDefs.PostView
showReplyLine?: boolean
style?: StyleProp<ViewStyle>
}) {
const moderationOpts = useModerationOpts()
const record = useMemo<AppBskyFeedPost.Record | undefined>(
() =>
AppBskyFeedPost.isRecord(post.record) &&
AppBskyFeedPost.validateRecord(post.record).success
? post.record
: undefined,
[post],
)
const postShadowed = usePostShadow(post)
const richText = useMemo(
() =>
record
? new RichTextAPI({
text: record.text,
facets: record.facets,
})
: undefined,
[record],
)
const moderation = useMemo(
() => (moderationOpts ? moderatePost(post, moderationOpts) : undefined),
[moderationOpts, post],
)
if (postShadowed === POST_TOMBSTONE) {
return null
}
if (record && richText && moderation) {
return (
<PostInner
post={postShadowed}
record={record}
richText={richText}
moderation={moderation}
showReplyLine={showReplyLine}
style={style}
/>
)
}
return null
}
function PostInner({
post,
record,
richText,
moderation,
showReplyLine,
style,
}: {
post: Shadow<AppBskyFeedDefs.PostView>
record: AppBskyFeedPost.Record
richText: RichTextAPI
moderation: PostModeration
showReplyLine?: boolean
style?: StyleProp<ViewStyle>
}) {
const pal = usePalette('default')
const {openComposer} = useComposerControls()
const [limitLines, setLimitLines] = useState(
() => countLines(richText?.text) >= MAX_POST_LINES,
)
const itemUrip = new AtUri(post.uri)
const itemHref = makeProfileLink(post.author, 'post', itemUrip.rkey)
let replyAuthorDid = ''
if (record.reply) {
const urip = new AtUri(record.reply.parent?.uri || record.reply.root.uri)
replyAuthorDid = urip.hostname
}
const onPressReply = React.useCallback(() => {
openComposer({
replyTo: {
uri: post.uri,
cid: post.cid,
text: record.text,
author: {
handle: post.author.handle,
displayName: post.author.displayName,
avatar: post.author.avatar,
},
},
})
}, [openComposer, post, record])
const onPressShowMore = React.useCallback(() => {
setLimitLines(false)
}, [setLimitLines])
return (
<Link href={itemHref} style={[styles.outer, pal.view, pal.border, style]}>
{showReplyLine && <View style={styles.replyLine} />}
<View style={styles.layout}>
<View style={styles.layoutAvi}>
<PreviewableUserAvatar
size={52}
did={post.author.did}
handle={post.author.handle}
avatar={post.author.avatar}
moderation={moderation.avatar}
/>
</View>
<View style={styles.layoutContent}>
<PostMeta
author={post.author}
authorHasWarning={!!post.author.labels?.length}
timestamp={post.indexedAt}
postHref={itemHref}
/>
{replyAuthorDid !== '' && (
<View style={[s.flexRow, s.mb2, s.alignCenter]}>
<FontAwesomeIcon
icon="reply"
size={9}
style={[pal.textLight, s.mr5]}
/>
<Text
type="sm"
style={[pal.textLight, s.mr2]}
lineHeight={1.2}
numberOfLines={1}>
Reply to{' '}
<UserInfoText
type="sm"
did={replyAuthorDid}
attr="displayName"
style={[pal.textLight]}
/>
</Text>
</View>
)}
<ContentHider
moderation={moderation.content}
style={styles.contentHider}
childContainerStyle={styles.contentHiderChild}>
<PostAlerts moderation={moderation.content} style={styles.alert} />
{richText.text ? (
<View style={styles.postTextContainer}>
<RichText
testID="postText"
type="post-text"
richText={richText}
lineHeight={1.3}
numberOfLines={limitLines ? MAX_POST_LINES : undefined}
style={s.flex1}
/>
</View>
) : undefined}
{limitLines ? (
<TextLink
text="Show More"
style={pal.link}
onPress={onPressShowMore}
href="#"
/>
) : undefined}
{post.embed ? (
<ContentHider
moderation={moderation.embed}
moderationDecisions={moderation.decisions}
ignoreQuoteDecisions
style={styles.contentHider}>
<PostEmbeds
embed={post.embed}
moderation={moderation.embed}
moderationDecisions={moderation.decisions}
/>
</ContentHider>
) : null}
</ContentHider>
<PostCtrls post={post} record={record} onPressReply={onPressReply} />
</View>
</View>
</Link>
)
}
const styles = StyleSheet.create({
outer: {
paddingTop: 10,
paddingRight: 15,
paddingBottom: 5,
paddingLeft: 10,
borderTopWidth: 1,
// @ts-ignore web only -prf
cursor: 'pointer',
},
layout: {
flexDirection: 'row',
},
layoutAvi: {
width: 70,
paddingLeft: 8,
},
layoutContent: {
flex: 1,
},
alert: {
marginBottom: 6,
},
postTextContainer: {
flexDirection: 'row',
alignItems: 'center',
flexWrap: 'wrap',
},
replyLine: {
position: 'absolute',
left: 36,
top: 70,
bottom: 0,
borderLeftWidth: 2,
borderLeftColor: colors.gray2,
},
contentHider: {
marginBottom: 2,
},
contentHiderChild: {
marginTop: 6,
},
})
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