97 lines
2.9 KiB
JavaScript
97 lines
2.9 KiB
JavaScript
import React, { useState, useEffect } from 'react';
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import { StyleSheet, SafeAreaView, FlatList } from 'react-native';
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import API from './../API.js';
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import Post from './../components/Post.js';
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import GlobalState from '../contexts/GlobalState.js';
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import AsyncStorage from '@react-native-async-storage/async-storage';
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const storeFeed = async (value) => {
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try {
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const jsonValue = JSON.stringify(value)
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await AsyncStorage.setItem('feed', jsonValue)
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} catch (e) {
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}
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}
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const getFeed = async () => {
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try {
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const value = await AsyncStorage.getItem('feed')
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if (value !== null) {
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return JSON.parse(value);
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}
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} catch (e) {
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return []
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}
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}
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let Feed = ({ navigation, route }) => {
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let [Posts, setPosts] = useState([]);
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console.log("Render Feed");
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useEffect(() => {
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let subscribed = true;
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const getData = async () => {
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let loggedIn = await API.isLoggedIn();
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if (!loggedIn) return navigation.reset({
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index: 0,
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routes: [{ name: 'Login' }],
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});
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if (route.params && route.params.profileid) {
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return navigation.navigate('Profile', { profileid: route.params.profileid })
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}
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API.getMe().then((me) => {
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if (subscribed)
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GlobalState.me = me;
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});
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console.log("Feed from cache")
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let cacheFeed = await getFeed() || [];
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if (cacheFeed.length && subscribed) setPosts(cacheFeed);
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console.log("Feed from server")
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let posts = await API.getPosts();
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if (subscribed) {
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setPosts(posts);
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storeFeed(posts);
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}
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console.log("Feed, end useEffect")
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}
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getData()
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return () => {
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subscribed = false;
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}
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}, [route.params]);
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const renderPost = (({ item }) => {
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if (item.nonOrganicType === 'PopularUsers' || item.nonOrganicType === 'PopularGroups')
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return (<></>);
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return (<Post post={item} />);
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});
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return (
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<SafeAreaView>
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<FlatList
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data={Posts}
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renderItem={renderPost}
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keyExtractor={item => item._id || item.createdAt}
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//ListHeaderComponent={<NewPost newPostCB={(newPost) => setPosts([newPost, ...Posts])} />}
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refreshing={Posts.length === 0}
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onRefresh={() => {
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API.getPosts().then(setPosts);
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}}
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initialNumToRender={3}
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maxToRenderPerBatch={3}
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removeClippedSubviews={true}
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style={styles.container}
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/>
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</SafeAreaView>
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);
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}
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export default Feed;
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const styles = StyleSheet.create({
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container: {
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backgroundColor: "#edf2f7",
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},
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});
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