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import React, {useCallback, useMemo} from 'react'
import {
RefreshControl,
StyleSheet,
View,
ActivityIndicator,
FlatList,
TouchableOpacity,
} from 'react-native'
import {useFocusEffect} from '@react-navigation/native'
import {NativeStackScreenProps} from '@react-navigation/native-stack'
import {useAnalytics} from 'lib/analytics'
import {usePalette} from 'lib/hooks/usePalette'
import {CommonNavigatorParams} from 'lib/routes/types'
import {observer} from 'mobx-react-lite'
import {useStores} from 'state/index'
import AlgoItem from 'view/com/algos/AlgoItem'
import {withAuthRequired} from 'view/com/auth/withAuthRequired'
import {ViewHeader} from 'view/com/util/ViewHeader'
import {CenteredView} from 'view/com/util/Views'
import {Text} from 'view/com/util/text/Text'
import {isDesktopWeb} from 'platform/detection'
import {colors, s} from 'lib/styles'
import {FontAwesomeIcon} from '@fortawesome/react-native-fontawesome'
import {AlgoItemModel} from 'state/models/feeds/algo/algo-item'
import {SavedFeedsModel} from 'state/models/feeds/algo/saved'
type Props = NativeStackScreenProps<CommonNavigatorParams, 'SavedFeeds'>
export const SavedFeeds = withAuthRequired(
observer(({}: Props) => {
// hooks for global items
const pal = usePalette('default')
const rootStore = useStores()
const {screen} = useAnalytics()
// hooks for local
const savedFeeds = useMemo(() => rootStore.me.savedFeeds, [rootStore])
useFocusEffect(
useCallback(() => {
screen('SavedFeeds')
rootStore.shell.setMinimalShellMode(false)
savedFeeds.refresh()
}, [screen, rootStore, savedFeeds]),
)
const _ListEmptyComponent = () => {
return (
<View
style={[
pal.border,
!isDesktopWeb && s.flex1,
pal.viewLight,
styles.empty,
]}>
<Text type="lg" style={[pal.text]}>
You don't have any saved feeds. To save a feed, click the save
button when a custom feed or algorithm shows up.
</Text>
</View>
)
}
const _ListFooterComponent = () => {
return (
<View style={styles.footer}>
{savedFeeds.isLoading && <ActivityIndicator />}
</View>
)
}
return (
<CenteredView style={[s.flex1]}>
<ViewHeader title="Saved Feeds" showOnDesktop />
<FlatList
style={[!isDesktopWeb && s.flex1]}
data={savedFeeds.feeds}
keyExtractor={item => item.data.uri}
refreshing={savedFeeds.isRefreshing}
refreshControl={
<RefreshControl
refreshing={savedFeeds.isRefreshing}
onRefresh={() => savedFeeds.refresh()}
tintColor={pal.colors.text}
titleColor={pal.colors.text}
/>
}
renderItem={({item}) => (
<SavedFeedItem item={item} savedFeeds={savedFeeds} />
)}
initialNumToRender={10}
ListFooterComponent={_ListFooterComponent}
ListEmptyComponent={_ListEmptyComponent}
extraData={savedFeeds.isLoading}
// @ts-ignore our .web version only -prf
desktopFixedHeight
/>
</CenteredView>
)
}),
)
const SavedFeedItem = observer(
({item, savedFeeds}: {item: AlgoItemModel; savedFeeds: SavedFeedsModel}) => {
const isPinned = savedFeeds.isPinned(item)
return (
<View style={styles.itemContainer}>
<AlgoItem
key={item.data.uri}
item={item}
showBottom={false}
style={styles.item}
/>
<TouchableOpacity
accessibilityRole="button"
onPress={() => {
savedFeeds.togglePinnedFeed(item)
console.log('pinned', savedFeeds.pinned)
console.log('isPinned', savedFeeds.isPinned(item))
}}>
<FontAwesomeIcon
icon="thumb-tack"
size={20}
color={isPinned ? colors.blue3 : colors.gray3}
/>
</TouchableOpacity>
</View>
)
},
)
const styles = StyleSheet.create({
footer: {
paddingVertical: 20,
},
empty: {
paddingHorizontal: 20,
paddingVertical: 20,
borderRadius: 16,
marginHorizontal: 24,
marginTop: 10,
},
itemContainer: {
flexDirection: 'row',
alignItems: 'center',
marginRight: 18,
},
item: {
borderTopWidth: 0,
},
})
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