qotnews/webclient/src/Comments.js

109 lines
2.4 KiB
JavaScript

import React from 'react';
import { Link } from 'react-router-dom';
import { HashLink } from 'react-router-hash-link';
import { Helmet } from 'react-helmet';
import moment from 'moment';
import localForage from 'localforage';
import { infoLine, ToggleDot } from './utils.js';
class Article extends React.Component {
constructor(props) {
super(props);
const id = this.props.match.params.id;
const cache = this.props.cache;
if (id in cache) console.log('cache hit');
this.state = {
story: cache[id] || false,
error: false,
};
}
componentDidMount() {
const id = this.props.match.params.id;
localForage.getItem(id)
.then(
(value) => {
this.setState({ story: value });
}
);
fetch('/api/' + id)
.then(res => res.json())
.then(
(result) => {
this.setState({ story: result.story }, () => {
const hash = window.location.hash.substring(1);
if (hash) {
document.getElementById(hash).scrollIntoView();
}
});
localForage.setItem(id, result.story);
},
(error) => {
this.setState({ error: true });
}
);
}
displayComment(story, c, level) {
return (
<div className={level ? 'comment lined' : 'comment'} key={c.author+c.date}>
<div className='info'>
<p>
{c.author === story.author ? '[OP]' : ''} {c.author || '[Deleted]'}
&#8203; | <HashLink to={'#'+c.author+c.date} id={c.author+c.date}>{moment.unix(c.date).fromNow()}</HashLink>
</p>
</div>
<div className='text' dangerouslySetInnerHTML={{ __html: c.text }} />
{level < 5 ?
c.comments.map(i => this.displayComment(story, i, level + 1))
:
<div className='info'><p>[replies snipped]</p></div>
}
</div>
);
}
render() {
const id = this.props.match.params.id;
const story = this.state.story;
const error = this.state.error;
return (
<div className='container'>
{error && <p>Connection error?</p>}
{story ?
<div className='article'>
<Helmet>
<title>{story.title} - QotNews Comments</title>
</Helmet>
<h1>{story.title}</h1>
<div className='info'>
<Link to={'/' + story.id}>View article</Link>
</div>
{infoLine(story)}
<div className='comments'>
{story.comments.map(c => this.displayComment(story, c, 0))}
</div>
</div>
:
<p>loading...</p>
}
<ToggleDot id={id} article={true} />
</div>
);
}
}
export default Article;