forked from tanner/qotnews
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145 lines
3.5 KiB
145 lines
3.5 KiB
import React from 'react'; |
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import { Link } from 'react-router-dom'; |
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import { HashLink } from 'react-router-hash-link'; |
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import { Helmet } from 'react-helmet'; |
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import moment from 'moment'; |
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import localForage from 'localforage'; |
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import { infoLine, ToggleDot } from '../utils.js'; |
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class Article extends React.Component { |
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constructor(props) { |
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super(props); |
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const id = this.props.match.params.id; |
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const cache = this.props.cache; |
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if (id in cache) console.log('cache hit'); |
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this.state = { |
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story: cache[id] || false, |
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error: false, |
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collapsed: [], |
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expanded: [], |
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}; |
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} |
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componentDidMount() { |
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const id = this.props.match.params.id; |
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localForage.getItem(id) |
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.then( |
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(value) => { |
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this.setState({ story: value }); |
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} |
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); |
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fetch('/api/' + id) |
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.then(res => res.json()) |
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.then( |
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(result) => { |
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this.setState({ story: result.story }, () => { |
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const hash = window.location.hash.substring(1); |
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if (hash) { |
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document.getElementById(hash).scrollIntoView(); |
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} |
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}); |
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localForage.setItem(id, result.story); |
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}, |
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(error) => { |
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this.setState({ error: true }); |
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} |
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); |
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} |
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collapseComment(cid) { |
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this.setState(prevState => ({ |
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...prevState, |
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collapsed: [...prevState.collapsed, cid], |
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expanded: prevState.expanded.filter(x => x !== cid), |
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})); |
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} |
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expandComment(cid) { |
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this.setState(prevState => ({ |
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...prevState, |
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collapsed: prevState.collapsed.filter(x => x !== cid), |
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expanded: [...prevState.expanded, cid], |
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})); |
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} |
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countComments(c) { |
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return c.comments.reduce((sum, x) => sum + this.countComments(x), 1); |
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} |
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displayComment(story, c, level) { |
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const cid = c.author + c.date; |
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const collapsed = this.state.collapsed.includes(cid); |
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const expanded = this.state.expanded.includes(cid); |
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const hidden = collapsed || (level == 4 && !expanded); |
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const hasChildren = c.comments.length !== 0; |
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return ( |
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<div className={level ? 'comment lined' : 'comment'} key={cid}> |
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<div className='info'> |
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<p> |
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{c.author === story.author ? '[OP]' : ''} {c.author || '[Deleted]'} |
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{' '} | <HashLink to={'#' + cid} id={cid}>{moment.unix(c.date).fromNow()}</HashLink> |
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{hasChildren && ( |
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hidden ? |
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<span className='collapser expander pointer' onClick={() => this.expandComment(cid)}>+</span> |
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: |
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<span className='collapser pointer' onClick={() => this.collapseComment(cid)}>–</span> |
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)} |
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</p> |
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</div> |
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<div className={collapsed ? 'text hidden' : 'text'} dangerouslySetInnerHTML={{ __html: c.text }} /> |
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{hidden && hasChildren ? |
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<div className='comment lined info pointer' onClick={() => this.expandComment(cid)}>[show {this.countComments(c) - 1} more]</div> |
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: |
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c.comments.map(i => this.displayComment(story, i, level + 1)) |
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} |
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</div> |
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); |
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} |
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render() { |
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const id = this.props.match.params.id; |
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const story = this.state.story; |
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const error = this.state.error; |
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return ( |
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<div className='container'> |
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{error && <p>Connection error?</p>} |
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{story ? |
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<div className='article'> |
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<Helmet> |
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<title>{story.title} - QotNews Comments</title> |
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</Helmet> |
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<h1>{story.title}</h1> |
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<div className='info'> |
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<Link to={'/' + story.id}>View article</Link> |
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</div> |
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{infoLine(story)} |
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<div className='comments'> |
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{story.comments.map(c => this.displayComment(story, c, 0))} |
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</div> |
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</div> |
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: |
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<p>loading...</p> |
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} |
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<ToggleDot id={id} article={true} /> |
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</div> |
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); |
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} |
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} |
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export default Article;
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