lbry-desktop/ui/component/commentsReplies/view.jsx
2021-04-23 16:20:17 -04:00

126 lines
4.1 KiB
JavaScript

// @flow
import * as ICONS from 'constants/icons';
import React from 'react';
import Comment from 'component/comment';
import Button from 'component/button';
type Props = {
comments: Array<any>,
uri: string,
claimIsMine: boolean,
myChannels: ?Array<ChannelClaim>,
linkedComment?: Comment,
commentingEnabled: boolean,
threadDepth: number,
};
function CommentsReplies(props: Props) {
const { uri, comments, claimIsMine, myChannels, linkedComment, commentingEnabled, threadDepth } = props;
const [isExpanded, setExpanded] = React.useState(true);
const [start, setStart] = React.useState(0);
const [end, setEnd] = React.useState(9);
const sortedComments = comments ? [...comments].reverse() : [];
const numberOfComments = comments ? comments.length : 0;
const linkedCommentId = linkedComment ? linkedComment.comment_id : '';
const commentsIndexOfLInked = comments && sortedComments.findIndex((e) => e.comment_id === linkedCommentId);
function showMore() {
if (start > 0) {
setStart(0);
} else {
setEnd(numberOfComments);
}
}
// todo: implement comment_list --mine in SDK so redux can grab with selectCommentIsMine
function isMyComment(channelId: string) {
if (myChannels != null && channelId != null) {
for (let i = 0; i < myChannels.length; i++) {
if (myChannels[i].claim_id === channelId) {
return true;
}
}
}
return false;
}
function handleCommentDone() {
if (!isExpanded) {
setExpanded(true);
setStart(numberOfComments || 0);
}
setEnd(numberOfComments + 1);
}
React.useEffect(() => {
if (
setStart &&
setEnd &&
setExpanded &&
linkedCommentId &&
Number.isInteger(commentsIndexOfLInked) &&
commentsIndexOfLInked > -1
) {
setStart(commentsIndexOfLInked);
setEnd(commentsIndexOfLInked + 1);
setExpanded(true);
}
}, [setStart, setEnd, setExpanded, linkedCommentId, commentsIndexOfLInked]);
const displayedComments = sortedComments.slice(start, end);
return (
Boolean(numberOfComments) && (
<div className="comment__replies-container">
{Boolean(numberOfComments) && !isExpanded && (
<div className="comment__actions--nested">
<Button
className="comment__action"
label={__('Show Replies')}
onClick={() => setExpanded(!isExpanded)}
icon={isExpanded ? ICONS.UP : ICONS.DOWN}
/>
</div>
)}
{comments && displayedComments && isExpanded && (
<div>
<div className="comment__replies">
<Button className="comment__threadline" aria-label="Hide Replies" onClick={() => setExpanded(false)} />
<ul className="comments--replies">
{displayedComments.map((comment, index) => {
return (
<Comment
threadDepth={threadDepth}
uri={uri}
authorUri={comment.channel_url}
author={comment.channel_name}
claimId={comment.claim_id}
commentId={comment.comment_id}
key={comment.comment_id}
message={comment.comment}
timePosted={comment.timestamp * 1000}
claimIsMine={claimIsMine}
commentIsMine={comment.channel_id && isMyComment(comment.channel_id)}
linkedComment={linkedComment}
commentingEnabled={commentingEnabled}
handleCommentDone={handleCommentDone}
supportAmount={comment.support_amount}
/>
);
})}
</ul>
</div>
</div>
)}
{isExpanded && comments && (end < numberOfComments || start > 0) && (
<div className="comment__actions">
<Button button="link" label={__('Show more')} onClick={showMore} className="button--uri-indicator" />
</div>
)}
</div>
)
);
}
export default CommentsReplies;