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import { Component } from 'inferno';
import { Link } from 'inferno-router';
import { Subscription } from "rxjs";
import { retryWhen, delay, take } from 'rxjs/operators';
import { UserOperation, CommunityUser, GetFollowedCommunitiesResponse } from '../interfaces';
import { WebSocketService, UserService } from '../services';
import { PostListings } from './post-listings';
import { msgOp } from '../utils';
interface State {
subscribedCommunities: Array<CommunityUser>;
}
export class Main extends Component<any, State> {
private subscription: Subscription;
private emptyState: State = {
subscribedCommunities: []
}
constructor(props: any, context: any) {
super(props, context);
this.state = this.emptyState;
this.subscription = WebSocketService.Instance.subject
.pipe(retryWhen(errors => errors.pipe(delay(3000), take(10))))
.subscribe(
(msg) => this.parseMessage(msg),
(err) => console.error(err),
() => console.log('complete')
);
if (UserService.Instance.loggedIn) {
WebSocketService.Instance.getFollowedCommunities();
}
}
componentWillUnmount() {
this.subscription.unsubscribe();
}
render() {
return (
<div class="container">
<div class="row">
<div class="col-12 col-lg-9">
<PostListings />
</div>
<div class="col-12 col-lg-3">
<h4>A Landing message</h4>
{UserService.Instance.loggedIn &&
<div>
<hr />
<h4>Subscribed forums</h4>
<ul class="list-unstyled">
{this.state.subscribedCommunities.map(community =>
<li><Link to={`/community/${community.community_id}`}>{community.community_name}</Link></li>
)}
</ul>
</div>
}
</div>
</div>
</div>
)
}
parseMessage(msg: any) {
console.log(msg);
let op: UserOperation = msgOp(msg);
if (msg.error) {
alert(msg.error);
return;
} else if (op == UserOperation.GetFollowedCommunities) {
let res: GetFollowedCommunitiesResponse = msg;
this.state.subscribedCommunities = res.communities;
this.setState(this.state);
}
}
}
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