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import React, {useEffect, useState} from 'react'
import {StyleSheet, Text, View} from 'react-native'
import {observer} from 'mobx-react-lite'
import {ViewSelector} from '../com/util/ViewSelector'
import {ScreenParams} from '../routes'
import {ProfileUiModel, SECTION_IDS} from '../../state/models/profile-ui'
import {useStores} from '../../state'
import {ProfileHeader} from '../com/profile/ProfileHeader'
import {FeedItem} from '../com/posts/FeedItem'
import {ErrorScreen} from '../com/util/ErrorScreen'
import {ErrorMessage} from '../com/util/ErrorMessage'
import {s, colors} from '../lib/styles'
const LOADING_ITEM = {_reactKey: '__loading__'}
const END_ITEM = {_reactKey: '__end__'}
const EMPTY_ITEM = {_reactKey: '__empty__'}
export const Profile = observer(({visible, params}: ScreenParams) => {
const store = useStores()
const [hasSetup, setHasSetup] = useState<boolean>(false)
const [profileUiState, setProfileUiState] = useState<
ProfileUiModel | undefined
>()
useEffect(() => {
if (!visible) {
return
}
const user = params.name
if (hasSetup) {
console.log('Updating profile for', user)
profileUiState?.update()
} else {
console.log('Fetching profile for', user)
store.nav.setTitle(user)
const newProfileUiState = new ProfileUiModel(store, {user})
setProfileUiState(newProfileUiState)
newProfileUiState.setup().then(() => {
setHasSetup(true)
})
}
}, [visible, params.name, store])
// events
// =
const onSelectView = (index: number) => {
profileUiState?.setSelectedViewIndex(index)
}
const onRefresh = () => {
profileUiState
?.refresh()
.catch((err: any) => console.error('Failed to refresh', err))
}
const onEndReached = () => {
profileUiState
?.loadMore()
.catch((err: any) => console.error('Failed to load more', err))
}
const onPressTryAgain = () => {
profileUiState?.setup()
}
// rendering
// =
const renderHeader = () => {
if (!profileUiState) {
return <View />
}
return <ProfileHeader view={profileUiState.profile} />
}
let renderItem
let items: any[] = []
if (profileUiState) {
if (profileUiState.selectedViewIndex === SECTION_IDS.POSTS) {
if (profileUiState.isInitialLoading) {
items.push(LOADING_ITEM)
renderItem = () => <Text style={styles.loading}>Loading...</Text>
} else if (profileUiState.feed.hasError) {
items.push({
_reactKey: '__error__',
error: profileUiState.feed.errorStr,
})
renderItem = (item: any) => (
<View style={s.p5}>
<ErrorMessage
message={item.error}
onPressTryAgain={onPressTryAgain}
/>
</View>
)
} else if (profileUiState.currentView.hasContent) {
items = profileUiState.feed.feed.slice()
if (profileUiState.feed.hasReachedEnd) {
items.push(END_ITEM)
}
renderItem = (item: any) => {
if (item === END_ITEM) {
return <Text style={styles.endItem}>- end of feed -</Text>
}
return <FeedItem item={item} />
}
} else if (profileUiState.currentView.isEmpty) {
items.push(EMPTY_ITEM)
renderItem = () => <Text style={styles.loading}>No posts yet!</Text>
}
}
if (profileUiState.selectedViewIndex === SECTION_IDS.BADGES) {
items.push(EMPTY_ITEM)
renderItem = () => <Text>TODO</Text>
}
}
if (!renderItem) {
renderItem = () => <View />
}
return (
<View style={styles.container}>
{profileUiState?.profile.hasError ? (
<ErrorScreen
title="Failed to load profile"
message={`There was an issue when attempting to load ${params.name}`}
details={profileUiState.profile.error}
onPressTryAgain={onPressTryAgain}
/>
) : (
<ViewSelector
sections={ProfileUiModel.SELECTOR_ITEMS}
items={items}
renderHeader={renderHeader}
renderItem={renderItem}
refreshing={profileUiState?.isRefreshing || false}
onSelectView={onSelectView}
onRefresh={onRefresh}
onEndReached={onEndReached}
/>
)}
</View>
)
})
const styles = StyleSheet.create({
container: {
flexDirection: 'column',
height: '100%',
},
loading: {
paddingVertical: 10,
paddingHorizontal: 14,
},
endItem: {
paddingTop: 20,
paddingBottom: 30,
color: colors.gray5,
textAlign: 'center',
},
})
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