import { StatusBar } from 'expo-status-bar';
import React, { useState, useEffect } from 'react';
import { View, ActivityIndicator, StyleSheet, SafeAreaView, FlatList } from 'react-native';
import API from './../API.js';
import Post from './../components/Post.js';
import { Provider as PaperProvider } from 'react-native-paper';
import MaterialIcons from 'react-native-vector-icons/MaterialIcons';
import NewPost from "./../components/NewPost.js";



let Profile = ({ navigation, route }) => {
    let [Me, setMeProfile] = useState({});
    let [Posts, setPosts] = useState([]);
    useEffect(async () => {
        setPosts([]);
        let r = await API.getMe();
        setMeProfile(r);
        if (route.params && route.params.profileid) {
            API.getPosts(route.params.profileid).then((data) => {
                setPosts(data);
            });
        } else {
            navigation.navigate('Feed')
        }
    }, [route.params]);
    const renderPost = (({ item }) => {
        return (<Post post={item} viewer={Me} />);
    });

    return (
        <PaperProvider settings={{
            icon: props => <MaterialIcons {...props} />,
        }}>
            <SafeAreaView style={styles.container}>
                <View>
                    {Posts.length === 0 && <ActivityIndicator />}
                    {Posts.length !== 0 &&
                        <FlatList
                            data={Posts}
                            renderItem={renderPost}
                            keyExtractor={item => item._id || item.createdAt}
                            ListHeaderComponent={<NewPost newPostCB={(newPost) => setPosts([newPost, ...Posts])} />}
                            refreshing={Posts.length === 0}
                            onRefresh={()=>{
                                API.getPosts(route.params.profileid).then(setPosts);
                            }}
                        />
                    }
                </View>
                <StatusBar style="auto" />
            </SafeAreaView>
        </PaperProvider>
    );
}

export default Profile;

const styles = StyleSheet.create({
    container: {
        flex: 1,
        alignItems: 'center',
        backgroundColor: "#edf2f7",
    },
});