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import React from 'react'
import {useFocusEffect} from '@react-navigation/native'
import {observer} from 'mobx-react-lite'
import isEqual from 'lodash.isequal'
import {NativeStackScreenProps, HomeTabNavigatorParams} from 'lib/routes/types'
import {FeedDescriptor, FeedParams} from '#/state/queries/post-feed'
import {withAuthRequired} from 'view/com/auth/withAuthRequired'
import {FollowingEmptyState} from 'view/com/posts/FollowingEmptyState'
import {FollowingEndOfFeed} from 'view/com/posts/FollowingEndOfFeed'
import {CustomFeedEmptyState} from 'view/com/posts/CustomFeedEmptyState'
import {FeedsTabBar} from '../com/pager/FeedsTabBar'
import {Pager, PagerRef, RenderTabBarFnProps} from 'view/com/pager/Pager'
import {useStores} from 'state/index'
import {FeedPage} from 'view/com/feeds/FeedPage'
import {useSetMinimalShellMode, useSetDrawerSwipeDisabled} from '#/state/shell'
type Props = NativeStackScreenProps<HomeTabNavigatorParams, 'Home'>
export const HomeScreen = withAuthRequired(
observer(function HomeScreenImpl({}: Props) {
const store = useStores()
const setMinimalShellMode = useSetMinimalShellMode()
const setDrawerSwipeDisabled = useSetDrawerSwipeDisabled()
const pagerRef = React.useRef<PagerRef>(null)
const [selectedPage, setSelectedPage] = React.useState(0)
const [customFeeds, setCustomFeeds] = React.useState<FeedDescriptor[]>([])
const [requestedCustomFeeds, setRequestedCustomFeeds] = React.useState<
string[]
>([])
React.useEffect(() => {
const pinned = store.preferences.pinnedFeeds
if (isEqual(pinned, requestedCustomFeeds)) {
// no changes
return
}
const feeds: FeedDescriptor[] = []
for (const uri of pinned) {
if (uri.includes('app.bsky.feed.generator')) {
feeds.push(`feedgen|${uri}`)
} else if (uri.includes('app.bsky.graph.list')) {
feeds.push(`list|${uri}`)
}
}
pagerRef.current?.setPage(0)
setCustomFeeds(feeds)
setRequestedCustomFeeds(pinned)
}, [
store,
store.preferences.pinnedFeeds,
customFeeds,
setCustomFeeds,
pagerRef,
requestedCustomFeeds,
setRequestedCustomFeeds,
])
const homeFeedParams = React.useMemo<FeedParams>(() => {
if (!store.preferences.homeFeed.lab_mergeFeedEnabled) {
return {}
}
return {
mergeFeedEnabled: true,
mergeFeedSources: store.preferences.savedFeeds,
}
}, [
store.preferences.homeFeed.lab_mergeFeedEnabled,
store.preferences.savedFeeds,
])
useFocusEffect(
React.useCallback(() => {
setMinimalShellMode(false)
setDrawerSwipeDisabled(selectedPage > 0)
return () => {
setDrawerSwipeDisabled(false)
}
}, [setDrawerSwipeDisabled, selectedPage, setMinimalShellMode]),
)
const onPageSelected = React.useCallback(
(index: number) => {
setMinimalShellMode(false)
setSelectedPage(index)
setDrawerSwipeDisabled(index > 0)
},
[setDrawerSwipeDisabled, setSelectedPage, setMinimalShellMode],
)
const onPressSelected = React.useCallback(() => {
store.emitScreenSoftReset()
}, [store])
const onPageScrollStateChanged = React.useCallback(
(state: 'idle' | 'dragging' | 'settling') => {
if (state === 'dragging') {
setMinimalShellMode(false)
}
},
[setMinimalShellMode],
)
const renderTabBar = React.useCallback(
(props: RenderTabBarFnProps) => {
return (
<FeedsTabBar
key="FEEDS_TAB_BAR"
selectedPage={props.selectedPage}
onSelect={props.onSelect}
testID="homeScreenFeedTabs"
onPressSelected={onPressSelected}
/>
)
},
[onPressSelected],
)
const renderFollowingEmptyState = React.useCallback(() => {
return <FollowingEmptyState />
}, [])
const renderCustomFeedEmptyState = React.useCallback(() => {
return <CustomFeedEmptyState />
}, [])
return (
<Pager
ref={pagerRef}
testID="homeScreen"
onPageSelected={onPageSelected}
onPageScrollStateChanged={onPageScrollStateChanged}
renderTabBar={renderTabBar}
tabBarPosition="top">
<FeedPage
key="1"
testID="followingFeedPage"
isPageFocused={selectedPage === 0}
feed="home"
feedParams={homeFeedParams}
renderEmptyState={renderFollowingEmptyState}
renderEndOfFeed={FollowingEndOfFeed}
/>
{customFeeds.map((f, index) => {
return (
<FeedPage
key={f}
testID="customFeedPage"
isPageFocused={selectedPage === 1 + index}
feed={f}
renderEmptyState={renderCustomFeedEmptyState}
/>
)
})}
</Pager>
)
}),
)
|
