frontend/src/organisms/NewsSection.js

import { Container, Col, Row } from 'react-bootstrap';
import NewsItem from '../molecules/NewsItem';
import CacheStorage from './CacheStorage';
import axios from 'axios';
import { useState, useEffect } from 'react';

function NewsSection() {
    
    const [feeds, setFeeds] = useState([]); // Lưu danh sách bài đăng
    const [loading, setLoading] = useState(true); // Trạng thái tải dữ liệu
    
    function truncateText(text, maxLength = 100) {
        if (text.length <= maxLength) {
            return text;
        }
        return text.slice(0, maxLength) + '...';
    }

    useEffect(() => {
        const fetchFeeds = async () => {
            try {
                const response = await axios.get(process.env.REACT_APP_API_URL + '/feeds?limit=3');
                setFeeds(response.data.data);
                setLoading(false);
                CacheStorage.set('feeds',JSON.stringify(response.data.data));
                console.log(response.data);
            } catch (error) {
                console.error('Error fetching branches:', error);
                setLoading(false);
            }
        }

        if (CacheStorage.get('feeds')) {
            setFeeds(JSON.parse(CacheStorage.get('feeds')));
            setLoading(false);
            console.log(JSON.parse(CacheStorage.get('feeds')));
            console.log('fetched from cache');
        } else {
            fetchFeeds();
        }
    }, []);

    let feedContent;

    if (loading) {
        feedContent = (<p>Đang tải các bài đăng...</p>);
    } else {
        feedContent = (<Row xs={1} md={2} xl={3} className="g-4">
            {Array.from(feeds).map((feed, idx) => (
                <Col key={idx}>
                    <NewsItem title={feed.title}
                        text={truncateText(feed.description)}
                        imageSrc={feed.image_url}
                        // feedHref={feed.feedHref}
                        feedHref={'/news?id='+feed.id} //demo
                        >
                    </NewsItem>
                </Col>
            ))}
        </Row>);
    }

    return (
        <Container fluid id="news" className="text-center justify-content-center align-items-center my-5" style={{maxWidth:"90%"}}>
            <h1 className='mb-5'>Tin tức</h1>
            {feedContent}
        </Container>
    );
}

export default NewsSection;