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Diffstat (limited to 'src/view/com/post-thread/PostThread.tsx')
-rw-r--r-- | src/view/com/post-thread/PostThread.tsx | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/src/view/com/post-thread/PostThread.tsx b/src/view/com/post-thread/PostThread.tsx new file mode 100644 index 000000000..bc6642e07 --- /dev/null +++ b/src/view/com/post-thread/PostThread.tsx @@ -0,0 +1,88 @@ +import React, {useState, useEffect} from 'react' +import {observer} from 'mobx-react-lite' +import {ActivityIndicator, FlatList, Text, View} from 'react-native' +import {OnNavigateContent} from '../../routes/types' +import { + PostThreadViewModel, + PostThreadViewPostModel, +} from '../../../state/models/post-thread-view' +import {useStores} from '../../../state' +import {PostThreadItem} from './PostThreadItem' + +export const PostThread = observer(function PostThread({ + uri, + onNavigateContent, +}: { + uri: string + onNavigateContent: OnNavigateContent +}) { + const store = useStores() + const [view, setView] = useState<PostThreadViewModel | undefined>() + + useEffect(() => { + if (view?.params.uri === uri) { + console.log('Post thread doing nothing') + return // no change needed? or trigger refresh? + } + console.log('Fetching post thread', uri) + const newView = new PostThreadViewModel(store, {uri}) + setView(newView) + newView.setup().catch(err => console.error('Failed to fetch thread', err)) + }, [uri, view?.params.uri, store]) + + // not yet setup + if ( + !view || + (view.isLoading && !view.isRefreshing) || + view.params.uri !== uri + ) { + return ( + <View> + <ActivityIndicator /> + </View> + ) + } + + // error + if (view.hasError) { + return ( + <View> + <Text>{view.error}</Text> + </View> + ) + } + + // rendering + const posts = Array.from(flattenThread(view.thread)) + const renderItem = ({item}: {item: PostThreadViewPostModel}) => ( + <PostThreadItem item={item} onNavigateContent={onNavigateContent} /> + ) + const onRefresh = () => { + view.refresh().catch(err => console.error('Failed to refresh', err)) + } + return ( + <View> + {view.isRefreshing && <ActivityIndicator />} + {view.hasContent && ( + <FlatList + data={posts} + keyExtractor={item => item._reactKey} + renderItem={renderItem} + refreshing={view.isRefreshing} + onRefresh={onRefresh} + /> + )} + </View> + ) +}) + +function* flattenThread( + post: PostThreadViewPostModel, +): Generator<PostThreadViewPostModel, void> { + yield post + if (post.replies?.length) { + for (const reply of post.replies) { + yield* flattenThread(reply) + } + } +} |