forked from nutomic/lemmy
490 lines
15 KiB
TypeScript
490 lines
15 KiB
TypeScript
import { Component, linkEvent } from 'inferno';
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import { Link } from 'inferno-router';
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import { Subscription } from "rxjs";
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import { retryWhen, delay, take } from 'rxjs/operators';
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import { UserOperation, Community, Post as PostI, GetPostResponse, PostResponse, Comment, CommentForm as CommentFormI, CommentResponse, CommentLikeForm, CommentSortType, CreatePostLikeResponse, CommunityUser, CommunityResponse } from '../interfaces';
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import { WebSocketService, UserService } from '../services';
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import { msgOp, hotRank,mdToHtml } from '../utils';
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import { MomentTime } from './moment-time';
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import { PostListing } from './post-listing';
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import { Sidebar } from './sidebar';
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import * as autosize from 'autosize';
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interface CommentNodeI {
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comment: Comment;
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children?: Array<CommentNodeI>;
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};
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interface PostState {
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post: PostI;
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comments: Array<Comment>;
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commentSort: CommentSortType;
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community: Community;
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moderators: Array<CommunityUser>;
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}
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export class Post extends Component<any, PostState> {
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private subscription: Subscription;
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private emptyState: PostState = {
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post: null,
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comments: [],
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commentSort: CommentSortType.Hot,
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community: null,
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moderators: []
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}
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constructor(props, context) {
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super(props, context);
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this.state = this.emptyState;
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let postId = Number(this.props.match.params.id);
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this.subscription = WebSocketService.Instance.subject
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.pipe(retryWhen(errors => errors.pipe(delay(3000), take(10))))
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.subscribe(
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(msg) => this.parseMessage(msg),
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(err) => console.error(err),
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() => console.log('complete')
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);
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WebSocketService.Instance.getPost(postId);
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}
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componentWillUnmount() {
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this.subscription.unsubscribe();
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}
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componentDidMount() {
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autosize(document.querySelectorAll('textarea'));
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}
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render() {
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return (
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<div class="container">
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{this.state.post &&
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<div class="row">
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<div class="col-12 col-sm-8 col-lg-7 mb-3">
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<PostListing post={this.state.post} showBody showCommunity editable />
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<div className="mb-2" />
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<CommentForm postId={this.state.post.id} />
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{this.sortRadios()}
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{this.commentsTree()}
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</div>
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<div class="col-12 col-sm-4 col-lg-3 mb-3">
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{this.state.comments.length > 0 && this.newComments()}
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</div>
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<div class="col-12 col-sm-12 col-lg-2">
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{this.sidebar()}
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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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sortRadios() {
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return (
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<div class="btn-group btn-group-toggle mb-3">
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<label className={`btn btn-sm btn-secondary ${this.state.commentSort === CommentSortType.Hot && 'active'}`}>Hot
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<input type="radio" value={CommentSortType.Hot}
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checked={this.state.commentSort === CommentSortType.Hot}
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onChange={linkEvent(this, this.handleCommentSortChange)} />
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</label>
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<label className={`btn btn-sm btn-secondary ${this.state.commentSort === CommentSortType.Top && 'active'}`}>Top
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<input type="radio" value={CommentSortType.Top}
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checked={this.state.commentSort === CommentSortType.Top}
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onChange={linkEvent(this, this.handleCommentSortChange)} />
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</label>
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<label className={`btn btn-sm btn-secondary ${this.state.commentSort === CommentSortType.New && 'active'}`}>New
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<input type="radio" value={CommentSortType.New}
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checked={this.state.commentSort === CommentSortType.New}
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onChange={linkEvent(this, this.handleCommentSortChange)} />
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</label>
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</div>
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)
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}
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newComments() {
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return (
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<div class="sticky-top">
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<h4>New Comments</h4>
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{this.state.comments.map(comment =>
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<CommentNodes nodes={[{comment: comment}]} noIndent />
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)}
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</div>
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)
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}
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sidebar() {
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return (
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<div class="sticky-top">
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<Sidebar community={this.state.community} moderators={this.state.moderators} />
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</div>
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);
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}
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handleCommentSortChange(i: Post, event) {
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i.state.commentSort = Number(event.target.value);
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i.setState(i.state);
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}
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private buildCommentsTree(): Array<CommentNodeI> {
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let map = new Map<number, CommentNodeI>();
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for (let comment of this.state.comments) {
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let node: CommentNodeI = {
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comment: comment,
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children: []
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};
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map.set(comment.id, { ...node });
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}
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let tree: Array<CommentNodeI> = [];
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for (let comment of this.state.comments) {
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if( comment.parent_id ) {
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map.get(comment.parent_id).children.push(map.get(comment.id));
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}
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else {
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tree.push(map.get(comment.id));
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}
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}
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this.sortTree(tree);
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return tree;
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}
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sortTree(tree: Array<CommentNodeI>) {
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if (this.state.commentSort == CommentSortType.Top) {
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tree.sort((a, b) => b.comment.score - a.comment.score);
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} else if (this.state.commentSort == CommentSortType.New) {
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tree.sort((a, b) => b.comment.published.localeCompare(a.comment.published));
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} else if (this.state.commentSort == CommentSortType.Hot) {
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tree.sort((a, b) => hotRank(b.comment) - hotRank(a.comment));
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}
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for (let node of tree) {
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this.sortTree(node.children);
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}
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}
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commentsTree() {
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let nodes = this.buildCommentsTree();
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return (
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<div className="">
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<CommentNodes nodes={nodes} />
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</div>
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);
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}
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parseMessage(msg: any) {
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console.log(msg);
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let op: UserOperation = msgOp(msg);
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if (msg.error) {
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alert(msg.error);
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return;
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} else if (op == UserOperation.GetPost) {
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let res: GetPostResponse = msg;
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this.state.post = res.post;
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this.state.comments = res.comments;
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this.state.community = res.community;
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this.state.moderators = res.moderators;
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this.setState(this.state);
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} else if (op == UserOperation.CreateComment) {
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let res: CommentResponse = msg;
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this.state.comments.unshift(res.comment);
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this.setState(this.state);
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} else if (op == UserOperation.EditComment) {
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let res: CommentResponse = msg;
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let found = this.state.comments.find(c => c.id == res.comment.id);
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found.content = res.comment.content;
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found.updated = res.comment.updated;
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this.setState(this.state);
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}
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else if (op == UserOperation.CreateCommentLike) {
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let res: CommentResponse = msg;
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let found: Comment = this.state.comments.find(c => c.id === res.comment.id);
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found.score = res.comment.score;
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found.upvotes = res.comment.upvotes;
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found.downvotes = res.comment.downvotes;
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if (res.comment.my_vote !== null)
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found.my_vote = res.comment.my_vote;
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this.setState(this.state);
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} else if (op == UserOperation.CreatePostLike) {
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let res: CreatePostLikeResponse = msg;
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this.state.post.my_vote = res.post.my_vote;
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this.state.post.score = res.post.score;
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this.state.post.upvotes = res.post.upvotes;
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this.state.post.downvotes = res.post.downvotes;
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this.setState(this.state);
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} else if (op == UserOperation.EditPost) {
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let res: PostResponse = msg;
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this.state.post = res.post;
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this.setState(this.state);
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} else if (op == UserOperation.EditCommunity) {
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let res: CommunityResponse = msg;
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this.state.community = res.community;
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this.state.post.community_id = res.community.id;
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this.state.post.community_name = res.community.name;
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this.setState(this.state);
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} else if (op == UserOperation.FollowCommunity) {
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let res: CommunityResponse = msg;
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this.state.community.subscribed = res.community.subscribed;
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this.state.community.number_of_subscribers = res.community.number_of_subscribers;
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this.setState(this.state);
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}
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}
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}
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interface CommentNodesState {
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}
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interface CommentNodesProps {
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nodes: Array<CommentNodeI>;
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noIndent?: boolean;
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}
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export class CommentNodes extends Component<CommentNodesProps, CommentNodesState> {
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constructor(props, context) {
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super(props, context);
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}
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render() {
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return (
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<div className="comments">
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{this.props.nodes.map(node =>
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<CommentNode node={node} noIndent={this.props.noIndent} />
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)}
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</div>
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)
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}
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}
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interface CommentNodeState {
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showReply: boolean;
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showEdit: boolean;
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}
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interface CommentNodeProps {
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node: CommentNodeI;
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noIndent?: boolean;
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}
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export class CommentNode extends Component<CommentNodeProps, CommentNodeState> {
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private emptyState: CommentNodeState = {
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showReply: false,
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showEdit: false
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}
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constructor(props, context) {
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super(props, context);
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this.state = this.emptyState;
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this.handleReplyCancel = this.handleReplyCancel.bind(this);
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this.handleCommentLike = this.handleCommentLike.bind(this);
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this.handleCommentDisLike = this.handleCommentDisLike.bind(this);
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}
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render() {
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let node = this.props.node;
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return (
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<div className={`comment ${node.comment.parent_id && !this.props.noIndent ? 'ml-4' : ''}`}>
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<div className="float-left small text-center">
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<div className={`pointer upvote ${node.comment.my_vote == 1 ? 'text-info' : 'text-muted'}`} onClick={linkEvent(node, this.handleCommentLike)}>▲</div>
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<div>{node.comment.score}</div>
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<div className={`pointer downvote ${node.comment.my_vote == -1 && 'text-danger'}`} onClick={linkEvent(node, this.handleCommentDisLike)}>▼</div>
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</div>
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<div className="details ml-4">
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<ul class="list-inline mb-0 text-muted small">
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<li className="list-inline-item">
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<Link to={`/user/${node.comment.creator_id}`}>{node.comment.creator_name}</Link>
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</li>
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<li className="list-inline-item">
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<span>(
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<span className="text-info">+{node.comment.upvotes}</span>
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<span> | </span>
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<span className="text-danger">-{node.comment.downvotes}</span>
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<span>) </span>
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</span>
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</li>
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<li className="list-inline-item">
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<span><MomentTime data={node.comment} /></span>
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</li>
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</ul>
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{this.state.showEdit && <CommentForm node={node} edit onReplyCancel={this.handleReplyCancel} />}
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{!this.state.showEdit &&
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<div>
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<div className="md-div" dangerouslySetInnerHTML={mdToHtml(node.comment.content)} />
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<ul class="list-inline mb-1 text-muted small font-weight-bold">
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<li className="list-inline-item">
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<span class="pointer" onClick={linkEvent(this, this.handleReplyClick)}>reply</span>
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</li>
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{this.myComment &&
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<li className="list-inline-item">
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<span class="pointer" onClick={linkEvent(this, this.handleEditClick)}>edit</span>
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</li>
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}
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{this.myComment &&
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<li className="list-inline-item">
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<span class="pointer" onClick={linkEvent(this, this.handleDeleteClick)}>delete</span>
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</li>
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}
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<li className="list-inline-item">
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<a className="text-muted" href="test">link</a>
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</li>
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</ul>
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</div>
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}
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</div>
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{this.state.showReply && <CommentForm node={node} onReplyCancel={this.handleReplyCancel} />}
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{this.props.node.children && <CommentNodes nodes={this.props.node.children} />}
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</div>
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)
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}
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private get myComment(): boolean {
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return UserService.Instance.loggedIn && this.props.node.comment.creator_id == UserService.Instance.user.id;
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}
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handleReplyClick(i: CommentNode, event) {
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i.state.showReply = true;
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i.setState(i.state);
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}
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handleEditClick(i: CommentNode, event) {
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i.state.showEdit = true;
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i.setState(i.state);
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}
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handleDeleteClick(i: CommentNode, event) {
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let deleteForm: CommentFormI = {
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content: "*deleted*",
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edit_id: i.props.node.comment.id,
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post_id: i.props.node.comment.post_id,
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parent_id: i.props.node.comment.parent_id,
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auth: null
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};
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WebSocketService.Instance.editComment(deleteForm);
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}
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handleReplyCancel(): any {
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this.state.showReply = false;
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this.state.showEdit = false;
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this.setState(this.state);
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}
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handleCommentLike(i: CommentNodeI, event) {
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let form: CommentLikeForm = {
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comment_id: i.comment.id,
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post_id: i.comment.post_id,
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score: (i.comment.my_vote == 1) ? 0 : 1
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};
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WebSocketService.Instance.likeComment(form);
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}
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handleCommentDisLike(i: CommentNodeI, event) {
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let form: CommentLikeForm = {
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comment_id: i.comment.id,
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post_id: i.comment.post_id,
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score: (i.comment.my_vote == -1) ? 0 : -1
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};
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WebSocketService.Instance.likeComment(form);
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}
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}
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interface CommentFormProps {
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postId?: number;
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node?: CommentNodeI;
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onReplyCancel?();
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edit?: boolean;
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}
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interface CommentFormState {
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commentForm: CommentFormI;
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buttonTitle: string;
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}
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export class CommentForm extends Component<CommentFormProps, CommentFormState> {
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private emptyState: CommentFormState = {
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commentForm: {
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auth: null,
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content: null,
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post_id: this.props.node ? this.props.node.comment.post_id : this.props.postId
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},
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buttonTitle: !this.props.node ? "Post" : this.props.edit ? "Edit" : "Reply"
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}
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constructor(props, context) {
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super(props, context);
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this.state = this.emptyState;
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if (this.props.node) {
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if (this.props.edit) {
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this.state.commentForm.edit_id = this.props.node.comment.id;
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this.state.commentForm.parent_id = this.props.node.comment.parent_id;
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this.state.commentForm.content = this.props.node.comment.content;
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} else {
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// A reply gets a new parent id
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this.state.commentForm.parent_id = this.props.node.comment.id;
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}
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}
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}
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componentDidMount() {
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autosize(document.querySelectorAll('textarea'));
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}
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render() {
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return (
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<div>
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<form onSubmit={linkEvent(this, this.handleCommentSubmit)}>
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<div class="form-group row">
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<div class="col-sm-12">
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<textarea class="form-control" value={this.state.commentForm.content} onInput={linkEvent(this, this.handleCommentContentChange)} placeholder="Comment here" required />
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</div>
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</div>
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<div class="row">
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<div class="col-sm-12">
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<button type="submit" class="btn btn-sm btn-secondary mr-2">{this.state.buttonTitle}</button>
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{this.props.node && <button type="button" class="btn btn-sm btn-secondary" onClick={linkEvent(this, this.handleReplyCancel)}>Cancel</button>}
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</div>
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</div>
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</form>
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</div>
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);
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}
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handleCommentSubmit(i: CommentForm, event) {
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if (i.props.edit) {
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WebSocketService.Instance.editComment(i.state.commentForm);
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} else {
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WebSocketService.Instance.createComment(i.state.commentForm);
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}
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i.state.commentForm.content = undefined;
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i.setState(i.state);
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event.target.reset();
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if (i.props.node) {
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i.props.onReplyCancel();
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}
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}
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handleCommentContentChange(i: CommentForm, event) {
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i.state.commentForm.content = event.target.value;
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i.setState(i.state);
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}
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handleReplyCancel(i: CommentForm, event) {
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i.props.onReplyCancel();
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}
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}
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