import React, {useCallback, useEffect, useRef} from 'react'
import {ScrollView, View} from 'react-native'
import Animated, {LinearTransition} from 'react-native-reanimated'
import {type AppBskyFeedDefs, AtUri} from '@atproto/api'
import {msg, Trans} from '@lingui/macro'
import {useLingui} from '@lingui/react'
import {useNavigation} from '@react-navigation/native'
import {type NavigationProp} from '#/lib/routes/types'
import {useHideSimilarAccountsRecomm} from '#/state/preferences/hide-similar-accounts-recommendations'
import {useModerationOpts} from '#/state/preferences/moderation-opts'
import {useGetPopularFeedsQuery} from '#/state/queries/feed'
import {type FeedDescriptor} from '#/state/queries/post-feed'
import {useProfilesQuery} from '#/state/queries/profile'
import {
useSuggestedFollowsByActorQuery,
useSuggestedFollowsQuery,
} from '#/state/queries/suggested-follows'
import {useSession} from '#/state/session'
import * as userActionHistory from '#/state/userActionHistory'
import {type SeenPost} from '#/state/userActionHistory'
import {BlockDrawerGesture} from '#/view/shell/BlockDrawerGesture'
import {
atoms as a,
useBreakpoints,
useTheme,
type ViewStyleProp,
web,
} from '#/alf'
import {Button, ButtonIcon, ButtonText} from '#/components/Button'
import {useDialogControl} from '#/components/Dialog'
import * as FeedCard from '#/components/FeedCard'
import {ArrowRight_Stroke2_Corner0_Rounded as ArrowRight} from '#/components/icons/Arrow'
import {Hashtag_Stroke2_Corner0_Rounded as Hashtag} from '#/components/icons/Hashtag'
import {TimesLarge_Stroke2_Corner0_Rounded as X} from '#/components/icons/Times'
import {InlineLinkText} from '#/components/Link'
import * as ProfileCard from '#/components/ProfileCard'
import {Text} from '#/components/Typography'
import {type Metrics, useAnalytics} from '#/analytics'
import {IS_IOS} from '#/env'
import type * as bsky from '#/types/bsky'
import {FollowDialogWithoutGuide} from './ProgressGuide/FollowDialog'
import {ProgressGuideList} from './ProgressGuide/List'
const DISMISS_ANIMATION_DURATION = 200
const MOBILE_CARD_WIDTH = 165
const FINAL_CARD_WIDTH = 120
function CardOuter({
children,
style,
}: {children: React.ReactNode | React.ReactNode[]} & ViewStyleProp) {
const t = useTheme()
const {gtMobile} = useBreakpoints()
return (
{children}
)
}
export function SuggestedFollowPlaceholder() {
return (
)
}
export function SuggestedFeedsCardPlaceholder() {
return (
)
}
function getRank(seenPost: SeenPost): string {
let tier: string
if (seenPost.feedContext === 'popfriends') {
tier = 'a'
} else if (seenPost.feedContext?.startsWith('cluster')) {
tier = 'b'
} else if (seenPost.feedContext === 'popcluster') {
tier = 'c'
} else if (seenPost.feedContext?.startsWith('ntpc')) {
tier = 'd'
} else if (seenPost.feedContext?.startsWith('t-')) {
tier = 'e'
} else if (seenPost.feedContext === 'nettop') {
tier = 'f'
} else {
tier = 'g'
}
let score = Math.round(
Math.log(
1 + seenPost.likeCount + seenPost.repostCount + seenPost.replyCount,
),
)
if (seenPost.isFollowedBy || Math.random() > 0.9) {
score *= 2
}
const rank = 100 - score
return `${tier}-${rank}`
}
function sortSeenPosts(postA: SeenPost, postB: SeenPost): 0 | 1 | -1 {
const rankA = getRank(postA)
const rankB = getRank(postB)
// Yes, we're comparing strings here.
// The "larger" string means a worse rank.
if (rankA > rankB) {
return 1
} else if (rankA < rankB) {
return -1
} else {
return 0
}
}
function useExperimentalSuggestedUsersQuery() {
const {currentAccount} = useSession()
const userActionSnapshot = userActionHistory.useActionHistorySnapshot()
const dids = React.useMemo(() => {
const {likes, follows, followSuggestions, seen} = userActionSnapshot
const likeDids = likes
.map(l => new AtUri(l))
.map(uri => uri.host)
.filter(did => !follows.includes(did))
let suggestedDids: string[] = []
if (followSuggestions.length > 0) {
suggestedDids = [
// It's ok if these will pick the same item (weighed by its frequency)
followSuggestions[Math.floor(Math.random() * followSuggestions.length)],
followSuggestions[Math.floor(Math.random() * followSuggestions.length)],
followSuggestions[Math.floor(Math.random() * followSuggestions.length)],
followSuggestions[Math.floor(Math.random() * followSuggestions.length)],
]
}
const seenDids = seen
.sort(sortSeenPosts)
.map(l => new AtUri(l.uri))
.map(uri => uri.host)
return [...new Set([...suggestedDids, ...likeDids, ...seenDids])].filter(
did => did !== currentAccount?.did,
)
}, [userActionSnapshot, currentAccount])
const {data, isLoading, error} = useProfilesQuery({
handles: dids.slice(0, 16),
})
const profiles = data
? data.profiles.filter(profile => {
return !profile.viewer?.following
})
: []
return {
isLoading,
error,
profiles: profiles.slice(0, 6),
}
}
export function SuggestedFollows({feed}: {feed: FeedDescriptor}) {
const {currentAccount} = useSession()
const [feedType, feedUriOrDid] = feed.split('|')
if (feedType === 'author') {
if (currentAccount?.did === feedUriOrDid) {
return null
} else {
return
}
} else {
return
}
}
export function SuggestedFollowsProfile({did}: {did: string}) {
const {gtMobile} = useBreakpoints()
const moderationOpts = useModerationOpts()
const maxLength = gtMobile ? 4 : 6
const {
isLoading: isSuggestionsLoading,
data,
error,
} = useSuggestedFollowsByActorQuery({
did,
})
const {
data: moreSuggestions,
fetchNextPage,
hasNextPage,
isFetchingNextPage,
} = useSuggestedFollowsQuery({limit: 25})
const [dismissedDids, setDismissedDids] = React.useState>(
new Set(),
)
const [dismissingDids, setDismissingDids] = React.useState>(
new Set(),
)
const onDismiss = React.useCallback((dismissedDid: string) => {
// Start the fade animation
setDismissingDids(prev => new Set(prev).add(dismissedDid))
// After animation completes, actually remove from list
setTimeout(() => {
setDismissedDids(prev => new Set(prev).add(dismissedDid))
setDismissingDids(prev => {
const next = new Set(prev)
next.delete(dismissedDid)
return next
})
}, DISMISS_ANIMATION_DURATION)
}, [])
// Combine profiles from the actor-specific query with fallback suggestions
const allProfiles = React.useMemo(() => {
const actorProfiles = data?.suggestions ?? []
const fallbackProfiles =
moreSuggestions?.pages.flatMap(page => page.actors) ?? []
// Dedupe by did, preferring actor-specific profiles
const seen = new Set()
const combined: bsky.profile.AnyProfileView[] = []
for (const profile of actorProfiles) {
if (!seen.has(profile.did)) {
seen.add(profile.did)
combined.push(profile)
}
}
for (const profile of fallbackProfiles) {
if (!seen.has(profile.did) && profile.did !== did) {
seen.add(profile.did)
combined.push(profile)
}
}
return combined
}, [data?.suggestions, moreSuggestions?.pages, did])
const filteredProfiles = React.useMemo(() => {
return allProfiles.filter(p => !dismissedDids.has(p.did))
}, [allProfiles, dismissedDids])
// Fetch more when running low
React.useEffect(() => {
if (
moderationOpts &&
filteredProfiles.length < maxLength &&
hasNextPage &&
!isFetchingNextPage
) {
fetchNextPage()
}
}, [
filteredProfiles.length,
maxLength,
hasNextPage,
isFetchingNextPage,
fetchNextPage,
moderationOpts,
])
return (
)
}
export function SuggestedFollowsHome() {
const {gtMobile} = useBreakpoints()
const moderationOpts = useModerationOpts()
const maxLength = gtMobile ? 4 : 6
const {
isLoading: isSuggestionsLoading,
profiles: experimentalProfiles,
error: experimentalError,
} = useExperimentalSuggestedUsersQuery()
const {
data: moreSuggestions,
fetchNextPage,
hasNextPage,
isFetchingNextPage,
error: suggestionsError,
} = useSuggestedFollowsQuery({limit: 25})
const [dismissedDids, setDismissedDids] = React.useState>(
new Set(),
)
const [dismissingDids, setDismissingDids] = React.useState>(
new Set(),
)
const onDismiss = React.useCallback((did: string) => {
// Start the fade animation
setDismissingDids(prev => new Set(prev).add(did))
// After animation completes, actually remove from list
setTimeout(() => {
setDismissedDids(prev => new Set(prev).add(did))
setDismissingDids(prev => {
const next = new Set(prev)
next.delete(did)
return next
})
}, DISMISS_ANIMATION_DURATION)
}, [])
// Combine profiles from experimental query with paginated suggestions
const allProfiles = React.useMemo(() => {
const fallbackProfiles =
moreSuggestions?.pages.flatMap(page => page.actors) ?? []
// Dedupe by did, preferring experimental profiles
const seen = new Set()
const combined: bsky.profile.AnyProfileView[] = []
for (const profile of experimentalProfiles) {
if (!seen.has(profile.did)) {
seen.add(profile.did)
combined.push(profile)
}
}
for (const profile of fallbackProfiles) {
if (!seen.has(profile.did)) {
seen.add(profile.did)
combined.push(profile)
}
}
return combined
}, [experimentalProfiles, moreSuggestions?.pages])
const filteredProfiles = React.useMemo(() => {
return allProfiles.filter(p => !dismissedDids.has(p.did))
}, [allProfiles, dismissedDids])
// Fetch more when running low
React.useEffect(() => {
if (
moderationOpts &&
filteredProfiles.length < maxLength &&
hasNextPage &&
!isFetchingNextPage
) {
fetchNextPage()
}
}, [
filteredProfiles.length,
maxLength,
hasNextPage,
isFetchingNextPage,
fetchNextPage,
moderationOpts,
])
return (
)
}
export function ProfileGrid({
isSuggestionsLoading,
error,
profiles,
totalProfileCount,
recId,
viewContext = 'feed',
onDismiss,
dismissingDids,
isVisible = true,
}: {
isSuggestionsLoading: boolean
profiles: bsky.profile.AnyProfileView[]
totalProfileCount?: number
recId?: number
error: Error | null
dismissingDids?: Set
viewContext: 'profile' | 'profileHeader' | 'feed'
onDismiss?: (did: string) => void
isVisible?: boolean
}) {
const t = useTheme()
const ax = useAnalytics()
const {_} = useLingui()
const moderationOpts = useModerationOpts()
const {gtMobile} = useBreakpoints()
const followDialogControl = useDialogControl()
const isLoading = isSuggestionsLoading || !moderationOpts
const isProfileHeaderContext = viewContext === 'profileHeader'
const isFeedContext = viewContext === 'feed'
const maxLength = gtMobile ? 3 : isProfileHeaderContext ? 12 : 6
const minLength = gtMobile ? 3 : 4
// hide similar accounts
const hideSimilarAccountsRecomm = useHideSimilarAccountsRecomm()
// Track seen profiles
const seenProfilesRef = useRef>(new Set())
const containerRef = useRef(null)
const hasTrackedRef = useRef(false)
const logContext: Metrics['suggestedUser:seen']['logContext'] = isFeedContext
? 'InterstitialDiscover'
: isProfileHeaderContext
? 'Profile'
: 'InterstitialProfile'
// Callback to fire seen events
const fireSeen = useCallback(() => {
if (isLoading || error || !profiles.length) return
if (hasTrackedRef.current) return
hasTrackedRef.current = true
const profilesToShow = profiles.slice(0, maxLength)
profilesToShow.forEach((profile, index) => {
if (!seenProfilesRef.current.has(profile.did)) {
seenProfilesRef.current.add(profile.did)
ax.metric('suggestedUser:seen', {
logContext,
recId,
position: index,
suggestedDid: profile.did,
category: null,
})
}
})
}, [ax, isLoading, error, profiles, maxLength, logContext, recId])
// For profile header, fire when isVisible becomes true
useEffect(() => {
if (isProfileHeaderContext) {
if (!isVisible) {
hasTrackedRef.current = false
return
}
fireSeen()
}
}, [isVisible, isProfileHeaderContext, fireSeen])
// For feed interstitials, use IntersectionObserver to detect actual visibility
useEffect(() => {
if (isProfileHeaderContext) return // handled above
if (isLoading || error || !profiles.length) return
const node = containerRef.current
if (!node) return
// Use IntersectionObserver on web to detect when actually visible
if (typeof IntersectionObserver !== 'undefined') {
const observer = new IntersectionObserver(
entries => {
if (entries[0]?.isIntersecting) {
fireSeen()
observer.disconnect()
}
},
{threshold: 0.5},
)
// @ts-ignore - web only
observer.observe(node)
return () => observer.disconnect()
} else {
// On native, delay slightly to account for layout shifts during hydration
const timeout = setTimeout(() => {
fireSeen()
}, 500)
return () => clearTimeout(timeout)
}
}, [isProfileHeaderContext, isLoading, error, profiles.length, fireSeen])
const content = isLoading
? Array(maxLength)
.fill(0)
.map((_, i) => (
))
: error || !profiles.length
? null
: profiles.slice(0, maxLength).map((profile, index) => (
{
ax.metric('suggestedUser:press', {
logContext: isFeedContext
? 'InterstitialDiscover'
: 'InterstitialProfile',
recId,
position: index,
suggestedDid: profile.did,
category: null,
})
}}
style={[a.flex_1]}>
{({hovered, pressed}) => (
{onDismiss && (
)}
{
ax.metric('suggestedUser:follow', {
logContext: isFeedContext
? 'InterstitialDiscover'
: 'InterstitialProfile',
location: 'Card',
recId,
position: index,
suggestedDid: profile.did,
category: null,
})
}}
/>
)}
))
// Use totalProfileCount (before dismissals) for minLength check on initial render.
const profileCountForMinCheck = totalProfileCount ?? profiles.length
if (error || (!isLoading && profileCountForMinCheck < minLength)) {
ax.logger.debug(`Not enough profiles to show suggested follows`)
return null
}
if (!hideSimilarAccountsRecomm) {
return (
{isFeedContext ? (
Suggested for you
) : (
Similar accounts
)}
{!isProfileHeaderContext && (
)}
{gtMobile ? (
{content}
) : (
{content}
{!isProfileHeaderContext && (
{
followDialogControl.open()
ax.metric('suggestedUser:seeMore', {
logContext: 'Explore',
})
}}
/>
)}
)}
)
}
}
function SeeMoreSuggestedProfilesCard({onPress}: {onPress: () => void}) {
const {_} = useLingui()
return (
)
}
const numFeedsToDisplay = 3
export function SuggestedFeeds() {
const t = useTheme()
const ax = useAnalytics()
const {_} = useLingui()
const {data, isLoading, error} = useGetPopularFeedsQuery({
limit: numFeedsToDisplay,
})
const navigation = useNavigation()
const {gtMobile} = useBreakpoints()
const feeds = React.useMemo(() => {
const items: AppBskyFeedDefs.GeneratorView[] = []
if (!data) return items
for (const page of data.pages) {
for (const feed of page.feeds) {
items.push(feed)
}
}
return items
}, [data])
const content = isLoading ? (
Array(numFeedsToDisplay)
.fill(0)
.map((_, i) => )
) : error || !feeds ? null : (
<>
{feeds.slice(0, numFeedsToDisplay).map(feed => (
{
ax.metric('feed:interstitial:feedCard:press', {})
}}>
{({hovered, pressed}) => (
)}
))}
>
)
return error ? null : (
Some other feeds you might like
{gtMobile ? (
{content}
Browse more suggestions
) : (
{content}
)}
)
}
export function ProgressGuide() {
const t = useTheme()
const {gtMobile} = useBreakpoints()
return (
)
}