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|
import React from 'react'
import {View} from 'react-native'
import {AppBskyActorDefs, moderateProfile, ModerationOpts} from '@atproto/api'
import {msg, Plural, Trans} from '@lingui/macro'
import {useLingui} from '@lingui/react'
import {makeProfileLink} from '#/lib/routes/links'
import {sanitizeDisplayName} from 'lib/strings/display-names'
import {UserAvatar} from '#/view/com/util/UserAvatar'
import {atoms as a, useTheme} from '#/alf'
import {Link, LinkProps} from '#/components/Link'
import {Text} from '#/components/Typography'
const AVI_SIZE = 30
const AVI_BORDER = 1
/**
* Shared logic to determine if `KnownFollowers` should be shown.
*
* Checks the # of actual returned users instead of the `count` value, because
* `count` includes blocked users and `followers` does not.
*/
export function shouldShowKnownFollowers(
knownFollowers?: AppBskyActorDefs.KnownFollowers,
) {
return knownFollowers && knownFollowers.followers.length > 0
}
export function KnownFollowers({
profile,
moderationOpts,
onLinkPress,
}: {
profile: AppBskyActorDefs.ProfileViewDetailed
moderationOpts: ModerationOpts
onLinkPress?: LinkProps['onPress']
}) {
const cache = React.useRef<Map<string, AppBskyActorDefs.KnownFollowers>>(
new Map(),
)
/*
* Results for `knownFollowers` are not sorted consistently, so when
* revalidating we can see a flash of this data updating. This cache prevents
* this happening for screens that remain in memory. When pushing a new
* screen, or once this one is popped, this cache is empty, so new data is
* displayed.
*/
if (profile.viewer?.knownFollowers && !cache.current.has(profile.did)) {
cache.current.set(profile.did, profile.viewer.knownFollowers)
}
const cachedKnownFollowers = cache.current.get(profile.did)
if (cachedKnownFollowers && shouldShowKnownFollowers(cachedKnownFollowers)) {
return (
<KnownFollowersInner
profile={profile}
cachedKnownFollowers={cachedKnownFollowers}
moderationOpts={moderationOpts}
onLinkPress={onLinkPress}
/>
)
}
return null
}
function KnownFollowersInner({
profile,
moderationOpts,
cachedKnownFollowers,
onLinkPress,
}: {
profile: AppBskyActorDefs.ProfileViewDetailed
moderationOpts: ModerationOpts
cachedKnownFollowers: AppBskyActorDefs.KnownFollowers
onLinkPress?: LinkProps['onPress']
}) {
const t = useTheme()
const {_} = useLingui()
const textStyle = [
a.flex_1,
a.text_sm,
a.leading_snug,
t.atoms.text_contrast_medium,
]
const slice = cachedKnownFollowers.followers.slice(0, 3).map(f => {
const moderation = moderateProfile(f, moderationOpts)
return {
profile: {
...f,
displayName: sanitizeDisplayName(
f.displayName || f.handle,
moderation.ui('displayName'),
),
},
moderation,
}
})
const count = cachedKnownFollowers.count - Math.min(slice.length, 2)
return (
<Link
label={_(
msg`Press to view followers of this account that you also follow`,
)}
onPress={onLinkPress}
to={makeProfileLink(profile, 'known-followers')}
style={[
a.flex_1,
a.flex_row,
a.gap_md,
a.align_center,
{marginLeft: -AVI_BORDER},
]}>
{({hovered, pressed}) => (
<>
<View
style={[
{
height: AVI_SIZE,
width: AVI_SIZE + (slice.length - 1) * a.gap_md.gap,
},
pressed && {
opacity: 0.5,
},
]}>
{slice.map(({profile: prof, moderation}, i) => (
<View
key={prof.did}
style={[
a.absolute,
a.rounded_full,
{
borderWidth: AVI_BORDER,
borderColor: t.atoms.bg.backgroundColor,
width: AVI_SIZE + AVI_BORDER * 2,
height: AVI_SIZE + AVI_BORDER * 2,
left: i * a.gap_md.gap,
zIndex: AVI_BORDER - i,
},
]}>
<UserAvatar
size={AVI_SIZE}
avatar={prof.avatar}
moderation={moderation.ui('avatar')}
/>
</View>
))}
</View>
<Text
style={[
textStyle,
hovered && {
textDecorationLine: 'underline',
textDecorationColor: t.atoms.text_contrast_medium.color,
},
pressed && {
opacity: 0.5,
},
]}
numberOfLines={2}>
{count > 2 ? (
<Trans>
Followed by{' '}
<Text key={slice[0].profile.did} style={textStyle}>
{slice[0].profile.displayName}
</Text>
,{' '}
<Text key={slice[1].profile.did} style={textStyle}>
{slice[1].profile.displayName}
</Text>
, and{' '}
<Plural value={count - 2} one="# other" other="# others" />
</Trans>
) : count === 2 ? (
<Trans>
Followed by{' '}
<Text key={slice[0].profile.did} style={textStyle}>
{slice[0].profile.displayName}
</Text>{' '}
and{' '}
<Text key={slice[1].profile.did} style={textStyle}>
{slice[1].profile.displayName}
</Text>
</Trans>
) : (
<Trans>
Followed by{' '}
<Text key={slice[0].profile.did} style={textStyle}>
{slice[0].profile.displayName}
</Text>
</Trans>
)}
</Text>
</>
)}
</Link>
)
}
|
