bsky-social-app/src/view/com/util/PostEmbeds.tsx

import React, {useEffect, useState} from 'react'
import {
  ActivityIndicator,
  StyleSheet,
  StyleProp,
  Text,
  View,
  ViewStyle,
} from 'react-native'
import {Entity} from '../../../third-party/api/src/client/types/app/bsky/feed/post'
import {Link} from '../util/Link'
import {LinkMeta, getLikelyType, LikelyType} from '../../../lib/link-meta'
import {colors} from '../../lib/styles'
import {useStores} from '../../../state'
import {register} from 'react-native-bundle-splitter'

export const PostEmbeds = register(
  ({entities, style}: {entities?: Entity[]; style?: StyleProp<ViewStyle>}) => {
    const store = useStores()
    const [linkMeta, setLinkMeta] = useState<LinkMeta | undefined>(undefined)
    const link = entities?.find(
      ent =>
        ent.type === 'link' &&
        getLikelyType(ent.value || '') === LikelyType.HTML,
    )

    useEffect(() => {
      let aborted = false
      store.linkMetas.getLinkMeta(link?.value || '').then(linkMeta => {
        if (!aborted) {
          setLinkMeta(linkMeta)
        }
      })

      return () => {
        aborted = true
      }
    }, [link])

    if (!link) {
      return <View />
    }

    return (
      <Link style={[styles.outer, style]} href={link.value}>
        {linkMeta ? (
          <>
            <Text numberOfLines={1} style={styles.title}>
              {linkMeta.title || linkMeta.url}
            </Text>
            <Text numberOfLines={1} style={styles.url}>
              {linkMeta.url}
            </Text>
            {linkMeta.description ? (
              <Text numberOfLines={2} style={styles.description}>
                {linkMeta.description}
              </Text>
            ) : undefined}
          </>
        ) : (
          <ActivityIndicator />
        )}
      </Link>
    )
  },
)

const styles = StyleSheet.create({
  outer: {
    borderWidth: 1,
    borderColor: colors.gray2,
    borderRadius: 8,
    padding: 10,
  },
  title: {
    fontSize: 16,
    fontWeight: 'bold',
  },
  description: {
    marginTop: 4,
    fontSize: 15,
  },
  url: {
    color: colors.gray4,
  },
})