287 lines
10 KiB
JavaScript
287 lines
10 KiB
JavaScript
// @flow
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import React from 'react';
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import classnames from 'classnames';
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import Spinner from 'component/spinner';
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import CommentCreate from 'component/commentCreate';
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import LivestreamComment from 'component/livestreamComment';
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import Button from 'component/button';
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import UriIndicator from 'component/uriIndicator';
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import CreditAmount from 'component/common/credit-amount';
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import ChannelThumbnail from 'component/channelThumbnail';
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import Tooltip from 'component/common/tooltip';
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type Props = {
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uri: string,
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claim: ?StreamClaim,
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activeViewers: number,
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embed?: boolean,
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doCommentSocketConnect: (string, string) => void,
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doCommentSocketDisconnect: (string) => void,
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doCommentList: (string, string, number, number) => void,
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comments: Array<Comment>,
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fetchingComments: boolean,
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doSuperChatList: (string) => void,
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superChats: Array<Comment>,
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superChatsReversed: Array,
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superChatsTotalAmount: number,
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superChatsFiatAmount: number,
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myChannels: ?Array<ChannelClaim>,
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};
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const VIEW_MODE_CHAT = 'view_chat';
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const VIEW_MODE_SUPER_CHAT = 'view_superchat';
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const COMMENT_SCROLL_OFFSET = 100;
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const COMMENT_SCROLL_TIMEOUT = 25;
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export default function LivestreamComments(props: Props) {
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const {
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claim,
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uri,
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embed,
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doCommentSocketConnect,
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doCommentSocketDisconnect,
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comments, // superchats in chronological format
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doCommentList,
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fetchingComments,
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doSuperChatList,
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myChannels,
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superChats, // superchats organized by tip amount
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} = props;
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let { superChatsReversed, superChatsFiatAmount, superChatsTotalAmount } = props;
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const commentsRef = React.createRef();
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const [scrollBottom, setScrollBottom] = React.useState(true);
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const [viewMode, setViewMode] = React.useState(VIEW_MODE_CHAT);
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const [performedInitialScroll, setPerformedInitialScroll] = React.useState(false);
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const claimId = claim && claim.claim_id;
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const commentsLength = comments && comments.length;
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const commentsToDisplay = viewMode === VIEW_MODE_CHAT ? comments : superChats;
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const discussionElement = document.querySelector('.livestream__comments');
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const commentElement = document.querySelector('.livestream-comment');
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// sum total amounts for fiat tips and lbc tips
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if (superChats) {
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let fiatAmount = 0;
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let LBCAmount = 0;
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for (const superChat of superChats) {
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if (superChat.is_fiat) {
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fiatAmount = fiatAmount + superChat.support_amount;
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} else {
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LBCAmount = LBCAmount + superChat.support_amount;
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}
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}
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superChatsFiatAmount = fiatAmount;
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superChatsTotalAmount = LBCAmount;
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}
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// array of superchats organized by fiat or not first, then support amount
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if (superChats) {
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const clonedSuperchats = JSON.parse(JSON.stringify(superChats));
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// sort by fiat first then by support amount
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superChatsReversed = clonedSuperchats.sort(function(a,b) {
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if (a.is_fiat === b.is_fiat) {
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return b.support_amount - a.support_amount;
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} else {
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return (a.is_fiat === b.is_fiat) ? 0 : a.is_fiat ? -1 : 1;
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}
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}).reverse();
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}
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// todo: implement comment_list --mine in SDK so redux can grab with selectCommentIsMine
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function isMyComment(channelId: string) {
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if (myChannels != null && channelId != null) {
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for (let i = 0; i < myChannels.length; i++) {
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if (myChannels[i].claim_id === channelId) {
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return true;
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}
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}
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}
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return false;
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}
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React.useEffect(() => {
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if (claimId) {
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doCommentList(uri, '', 1, 75);
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doSuperChatList(uri);
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doCommentSocketConnect(uri, claimId);
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}
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return () => {
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if (claimId) {
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doCommentSocketDisconnect(claimId);
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}
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};
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}, [claimId, uri, doCommentList, doSuperChatList, doCommentSocketConnect, doCommentSocketDisconnect]);
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const handleScroll = React.useCallback(() => {
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if (discussionElement) {
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const negativeCommentHeight = commentElement && -1 * commentElement.offsetHeight;
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const isAtRecent = negativeCommentHeight && discussionElement.scrollTop >= negativeCommentHeight;
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setScrollBottom(isAtRecent);
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}
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}, [commentElement, discussionElement]);
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React.useEffect(() => {
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if (discussionElement) {
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discussionElement.addEventListener('scroll', handleScroll);
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if (commentsLength > 0) {
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// Only update comment scroll if the user hasn't scrolled up to view old comments
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// If they have, do nothing
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if (!performedInitialScroll) {
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setTimeout(
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() =>
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(discussionElement.scrollTop =
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discussionElement.scrollHeight - discussionElement.offsetHeight + COMMENT_SCROLL_OFFSET),
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COMMENT_SCROLL_TIMEOUT
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);
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setPerformedInitialScroll(true);
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}
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}
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return () => discussionElement.removeEventListener('scroll', handleScroll);
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}
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}, [commentsLength, discussionElement, handleScroll, performedInitialScroll, setPerformedInitialScroll]);
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if (!claim) {
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return null;
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}
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function scrollBack() {
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if (discussionElement) {
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discussionElement.scrollTop = 0;
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setScrollBottom(true);
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}
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}
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return (
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<div className="card livestream__discussion">
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<div className="card__header--between livestream-discussion__header">
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<div className="livestream-discussion__title">{__('Live discussion')}</div>
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{superChatsTotalAmount > 0 && (
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<div className="recommended-content__toggles">
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{/* the superchats in chronological order button */}
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<Button
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className={classnames('button-toggle', {
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'button-toggle--active': viewMode === VIEW_MODE_CHAT,
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})}
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label={__('Chat')}
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onClick={function() {
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setViewMode(VIEW_MODE_CHAT);
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const livestreamCommentsDiv = document.getElementsByClassName('livestream__comments')[0]
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const divHeight = livestreamCommentsDiv.scrollHeight;
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livestreamCommentsDiv.scrollTop = divHeight;
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}}
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/>
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{/* the button to show superchats listed by most to least support amount */}
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<Button
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className={classnames('button-toggle', {
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'button-toggle--active': viewMode === VIEW_MODE_SUPER_CHAT,
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})}
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label={
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<>
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<CreditAmount amount={superChatsTotalAmount} size={8} /> /
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<CreditAmount amount={superChatsFiatAmount} size={8} isFiat={true} /> {' '}{__('Tipped')}
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</>
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}
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onClick={function() {
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setViewMode(VIEW_MODE_SUPER_CHAT);
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const livestreamCommentsDiv = document.getElementsByClassName('livestream__comments')[0]
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const divHeight = livestreamCommentsDiv.scrollHeight;
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livestreamCommentsDiv.scrollTop = divHeight * -1;
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}}
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/>
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</div>
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)}
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</div>
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<>
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{fetchingComments && !comments && (
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<div className="main--empty">
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<Spinner />
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</div>
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)}
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<div ref={commentsRef} className="livestream__comments-wrapper">
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{viewMode === VIEW_MODE_CHAT && superChatsTotalAmount > 0 && superChats && (
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<div className="livestream-superchats__wrapper">
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<div className="livestream-superchats__inner">
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{superChats.map((superChat: Comment) => (
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<Tooltip key={superChat.comment_id} label={superChat.comment}>
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<div className="livestream-superchat">
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<div className="livestream-superchat__thumbnail">
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<ChannelThumbnail uri={superChat.channel_url} xsmall />
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</div>
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<div className="livestream-superchat__info">
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<UriIndicator uri={superChat.channel_url} link />
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<CreditAmount
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size={10}
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className="livestream-superchat__amount-large"
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amount={superChat.support_amount}
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isFiat={superChat.is_fiat}
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/>
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</div>
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</div>
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</Tooltip>
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))}
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</div>
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</div>
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)}
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{/* top to bottom comment display */}
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{!fetchingComments && comments.length > 0 ? (
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<div className="livestream__comments">
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{viewMode === VIEW_MODE_CHAT && commentsToDisplay.map((comment) => (
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<LivestreamComment
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key={comment.comment_id}
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uri={uri}
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authorUri={comment.channel_url}
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commentId={comment.comment_id}
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message={comment.comment}
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supportAmount={comment.support_amount}
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isFiat={comment.is_fiat}
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commentIsMine={comment.channel_id && isMyComment(comment.channel_id)}
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/>
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))}
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{viewMode === VIEW_MODE_SUPER_CHAT && superChatsReversed && superChatsReversed.map((comment) => (
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<LivestreamComment
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key={comment.comment_id}
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uri={uri}
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authorUri={comment.channel_url}
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commentId={comment.comment_id}
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message={comment.comment}
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supportAmount={comment.support_amount}
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isFiat={comment.is_fiat}
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commentIsMine={comment.channel_id && isMyComment(comment.channel_id)}
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/>
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))}
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</div>
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) : (
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<div className="main--empty" style={{ flex: 1 }} />
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)}
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{!scrollBottom && (
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<Button
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button="alt"
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className="livestream__comments-scroll__down"
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label={__('Recent Comments')}
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onClick={scrollBack}
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/>
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)}
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<div className="livestream__comment-create">
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<CommentCreate livestream bottom embed={embed} uri={uri} />
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</div>
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</div>
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</>
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</div>
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);
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}
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