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import React, { useEffect, useState, useRef, useCallback } from 'react';
import PropTypes from 'prop-types';
import ReactRouterPropTypes from 'react-router-prop-types';
import { UserType, MessageType } from './Types';
import Message from './Message';
import MessageInput from './MessageInput';
import Spinner from './Spinner';
import Avatar from './Avatar';
import Button from './Button';
import { format, embedUrls } from '../utils/embed';
import { getMessages, comment, markReadTracker, fetchUserUri } from '../api';
import './Thread.css';
let isMounted;
function Comment({ msg, visitor, active, setActive, postComment }) {
const embedRef = useRef();
const msgRef = useRef();
const [author, setAuthor] = useState(msg.user);
useEffect(() => {
if (msgRef.current) {
embedUrls(msgRef.current.querySelectorAll('a'), embedRef.current);
if (!embedRef.current.hasChildNodes()) {
embedRef.current.style.display = 'none';
}
}
}, []);
useEffect(() => {
isMounted = true;
if (author.uri) {
fetchUserUri(author.uri).then(response => {
if (isMounted) {
setAuthor(response.data);
}
});
}
return () => {
isMounted = false;
};
}, [author.uri]);
return (
<div>
<div className="msg-header" style={{ padding: '6px', display: 'flex', alignItems: 'flex-start' }}>
<Avatar user={author} link={author.uri}>
<div className="msg-ts">
{msg.replyto > 0 &&
(
<a href={`#${msg.replyto}`} className="info-avatar"><img src={msg.to.avatar} /> {msg.to.uname} </a>
)}
</div>
</Avatar>
<div className="msg-links">
{
visitor.uid > 0 ? (
<>
{active === msg.rid || <span style={linkStyle} onClick={() => setActive(msg.rid)}>Reply</span>}
</>
) : (
<>
<span> · </span>{active === msg.rid || <Button>Reply</Button>}
</>
)
}
</div>
</div>
<div className="msg-bubble">
{
msg.html ? <div dangerouslySetInnerHTML={{ __html: msg.body }} ref={msgRef} />
:
<div ref={msgRef}>
<p dangerouslySetInnerHTML={{ __html: format(msg.body, msg.mid, (msg.tags || []).indexOf('code') >= 0) }} />
</div>
}
</div>
{
msg.photo &&
<div className="msg-media">
<a href={`//i.juick.com/p/${msg.mid}-${msg.rid}.${msg.attach}`} data-fname={`${msg.mid}-${msg.rid}.${msg.attach}`}>
<img src={`//i.juick.com/p/${msg.mid}-${msg.rid}.${msg.attach}`} alt="" />
</a>
</div>
}
<div className="embedContainer" ref={embedRef} />
<div className="msg-links">
{
active === msg.rid && <MessageInput data={msg} onSend={postComment}>Write a comment...</MessageInput>
}
</div>
</div>
);
}
Comment.propTypes = {
msg: MessageType.isRequired,
visitor: UserType.isRequired,
active: PropTypes.number.isRequired,
setActive: PropTypes.func.isRequired,
postComment: PropTypes.func.isRequired
};
export default function Thread(props) {
const [message, setMessage] = useState((props.location.state || {}).msg || {});
const [replies, setReplies] = useState([]);
const [loading, setLoading] = useState(false);
const [active, setActive] = useState(0);
useEffect(() => {
setActive(0);
loadReplies();
}, [loadReplies]);
useEffect(() => {
if (props.connection.addEventListener && message.mid) {
props.connection.addEventListener('msg', onReply);
}
return () => {
if (props.connection.removeEventListener && message.mid) {
props.connection.removeEventListener('msg', onReply);
}
};
}, [props.connection, message.mid, onReply]);
let loadReplies = useCallback(() => {
document.body.scrollTop = 0;
document.documentElement.scrollTop = 0;
setReplies([]);
setLoading(true);
const { mid } = props.match.params;
let params = {
mid: mid
};
if (props.visitor && props.visitor.hash) {
params.hash = props.visitor.hash;
}
getMessages('/api/thread', params)
.then(response => {
setMessage(response.data.shift());
setReplies(response.data);
setLoading(false);
setActive(0);
}
).catch(ex => {
console.log(ex);
});
}, [props.visitor, props.match.params]);
let onReply = useCallback((json) => {
const msg = JSON.parse(json.data);
if (msg.mid == message.mid) {
setReplies(oldReplies => {
return [...oldReplies, msg];
});
}
}, [message]);
let postComment = (template) => {
const { mid, rid, body, attach } = template;
comment(mid, rid, body, attach).then(res => {
loadReplies();
})
.catch(console.log);
};
const loaders = Math.min(message.replies || 0, 10);
return (
<>
{
message.mid ? (
<Message data={message} visitor={props.visitor}>
{active === (message.rid || 0) && <MessageInput data={message} onSend={postComment}>Write a comment...</MessageInput>}
</Message>
) : (
<Spinner />
)
}
<ul id="replies">
{
!loading ? replies.map((msg) => (
<li id={msg.rid} key={msg.rid}>
<Comment msg={msg} visitor={props.visitor} active={active} setActive={setActive} postComment={postComment} />
</li>
)) : (
<>
{Array(loaders).fill().map((it, i) => <Spinner key={i} />)}
</>
)
}
</ul>
</>
);
}
const linkStyle = {
cursor: 'pointer'
};
Thread.propTypes = {
location: ReactRouterPropTypes.location,
history: ReactRouterPropTypes.history,
match: ReactRouterPropTypes.match,
visitor: UserType.isRequired,
connection: PropTypes.object.isRequired
};
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