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import React from 'react'
import {View} from 'react-native'
import {useFocusEffect, useIsFocused} from '@react-navigation/native'
import {useQueryClient} from '@tanstack/react-query'
import {
NativeStackScreenProps,
NotificationsTabNavigatorParams,
} from 'lib/routes/types'
import {ViewHeader} from '../com/util/ViewHeader'
import {Feed} from '../com/notifications/Feed'
import {TextLink} from 'view/com/util/Link'
import {ListMethods} from 'view/com/util/List'
import {LoadLatestBtn} from 'view/com/util/load-latest/LoadLatestBtn'
import {MainScrollProvider} from '../com/util/MainScrollProvider'
import {usePalette} from 'lib/hooks/usePalette'
import {useWebMediaQueries} from 'lib/hooks/useWebMediaQueries'
import {s, colors} from 'lib/styles'
import {useAnalytics} from 'lib/analytics/analytics'
import {logger} from '#/logger'
import {useSetMinimalShellMode} from '#/state/shell'
import {Trans, msg} from '@lingui/macro'
import {useLingui} from '@lingui/react'
import {
useUnreadNotifications,
useUnreadNotificationsApi,
} from '#/state/queries/notifications/unread'
import {RQKEY as NOTIFS_RQKEY} from '#/state/queries/notifications/feed'
import {listenSoftReset, emitSoftReset} from '#/state/events'
import {truncateAndInvalidate} from '#/state/queries/util'
import {isNative} from '#/platform/detection'
type Props = NativeStackScreenProps<
NotificationsTabNavigatorParams,
'Notifications'
>
export function NotificationsScreen({}: Props) {
const {_} = useLingui()
const setMinimalShellMode = useSetMinimalShellMode()
const [isScrolledDown, setIsScrolledDown] = React.useState(false)
const scrollElRef = React.useRef<ListMethods>(null)
const checkLatestRef = React.useRef<() => void | null>()
const {screen} = useAnalytics()
const pal = usePalette('default')
const {isDesktop} = useWebMediaQueries()
const queryClient = useQueryClient()
const unreadNotifs = useUnreadNotifications()
const unreadApi = useUnreadNotificationsApi()
const hasNew = !!unreadNotifs
const isScreenFocused = useIsFocused()
// event handlers
// =
const scrollToTop = React.useCallback(() => {
scrollElRef.current?.scrollToOffset({animated: isNative, offset: 0})
setMinimalShellMode(false)
}, [scrollElRef, setMinimalShellMode])
const onPressLoadLatest = React.useCallback(() => {
scrollToTop()
if (hasNew) {
// render what we have now
truncateAndInvalidate(queryClient, NOTIFS_RQKEY())
} else {
// check with the server
unreadApi.checkUnread({invalidate: true})
}
}, [scrollToTop, queryClient, unreadApi, hasNew])
const onFocusCheckLatest = React.useCallback(() => {
// on focus, check for latest, but only invalidate if the user
// isnt scrolled down to avoid moving content underneath them
unreadApi.checkUnread({invalidate: !isScrolledDown})
}, [unreadApi, isScrolledDown])
checkLatestRef.current = onFocusCheckLatest
// on-visible setup
// =
useFocusEffect(
React.useCallback(() => {
setMinimalShellMode(false)
logger.debug('NotificationsScreen: Focus')
screen('Notifications')
checkLatestRef.current?.()
}, [screen, setMinimalShellMode]),
)
React.useEffect(() => {
if (!isScreenFocused) {
return
}
return listenSoftReset(onPressLoadLatest)
}, [onPressLoadLatest, isScreenFocused])
const ListHeaderComponent = React.useCallback(() => {
if (isDesktop) {
return (
<View
style={[
pal.view,
{
flexDirection: 'row',
alignItems: 'center',
justifyContent: 'space-between',
paddingHorizontal: 18,
paddingVertical: 12,
},
]}>
<TextLink
type="title-lg"
href="/notifications"
style={[pal.text, {fontWeight: 'bold'}]}
text={
<>
<Trans>Notifications</Trans>{' '}
{hasNew && (
<View
style={{
top: -8,
backgroundColor: colors.blue3,
width: 8,
height: 8,
borderRadius: 4,
}}
/>
)}
</>
}
onPress={emitSoftReset}
/>
</View>
)
}
return <></>
}, [isDesktop, pal, hasNew])
return (
<View testID="notificationsScreen" style={s.hContentRegion}>
<ViewHeader title={_(msg`Notifications`)} canGoBack={false} />
<MainScrollProvider>
<Feed
onScrolledDownChange={setIsScrolledDown}
scrollElRef={scrollElRef}
ListHeaderComponent={ListHeaderComponent}
/>
</MainScrollProvider>
{(isScrolledDown || hasNew) && (
<LoadLatestBtn
onPress={onPressLoadLatest}
label={_(msg`Load new notifications`)}
showIndicator={hasNew}
/>
)}
</View>
)
}
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