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import React, {useEffect, useMemo, useState} from 'react'
import {View} from 'react-native'
import {makeRecordUri} from '../../lib/strings'
import {ViewHeader} from '../com/util/ViewHeader'
import {PostThread as PostThreadComponent} from '../com/post-thread/PostThread'
import {PostThreadViewModel} from '../../state/models/post-thread-view'
import {ScreenParams} from '../routes'
import {useStores} from '../../state'
import {s} from '../lib/styles'
export const PostThread = ({navIdx, visible, params}: ScreenParams) => {
const store = useStores()
const {name, rkey} = params
const [viewSubtitle, setViewSubtitle] = useState<string>(`by ${name}`)
const uri = makeRecordUri(name, 'app.bsky.feed.post', rkey)
const view = useMemo<PostThreadViewModel>(
() => new PostThreadViewModel(store, {uri}),
[store, uri],
)
useEffect(() => {
let aborted = false
const threadCleanup = view.registerListeners()
const setTitle = () => {
const author = view.thread?.post.author
const niceName = author?.handle || name
setViewSubtitle(`by ${niceName}`)
store.nav.setTitle(navIdx, `Post by ${niceName}`)
}
if (!visible) {
return threadCleanup
}
setTitle()
store.shell.setMinimalShellMode(false)
if (!view.hasLoaded && !view.isLoading) {
view.setup().then(
() => {
if (!aborted) {
setTitle()
}
},
err => {
store.log.error('Failed to fetch thread', err)
},
)
}
return () => {
aborted = true
threadCleanup()
}
}, [visible, store.nav, store.log, store.shell, name, navIdx, view])
return (
<View style={s.h100pct}>
<ViewHeader title="Post" subtitle={viewSubtitle} />
<View style={s.h100pct}>
<PostThreadComponent uri={uri} view={view} />
</View>
</View>
)
}
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