import { Component, linkEvent } from 'inferno'; import { Link } from 'inferno-router'; import { Subscription } from "rxjs"; import { retryWhen, delay, take } from 'rxjs/operators'; import { UserOperation, Community, ListCommunitiesResponse, CommunityResponse, FollowCommunityForm, ListCommunitiesForm, SortType } from '../interfaces'; import { WebSocketService } from '../services'; import { msgOp } from '../utils'; declare const Sortable: any; interface CommunitiesState { communities: Array; loading: boolean; } export class Communities extends Component { private subscription: Subscription; private emptyState: CommunitiesState = { communities: [], loading: true } 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') ); let listCommunitiesForm: ListCommunitiesForm = { sort: SortType[SortType.TopAll], limit: 9999, } WebSocketService.Instance.listCommunities(listCommunitiesForm); } componentWillUnmount() { this.subscription.unsubscribe(); } componentDidMount() { let table = document.querySelector('#community_table'); Sortable.initTable(table); } render() { return (
{this.state.loading ?
:
Communities
{this.state.communities.map(community => )}
Name Title Category Subscribers Posts Comments
{community.name} {community.title} {community.category_name} {community.number_of_subscribers} {community.number_of_posts} {community.number_of_comments} {community.subscribed ? Unsubscribe : Subscribe }
}
); } handleUnsubscribe(communityId: number) { let form: FollowCommunityForm = { community_id: communityId, follow: false }; WebSocketService.Instance.followCommunity(form); } handleSubscribe(communityId: number) { let form: FollowCommunityForm = { community_id: communityId, follow: true }; WebSocketService.Instance.followCommunity(form); } parseMessage(msg: any) { console.log(msg); let op: UserOperation = msgOp(msg); if (msg.error) { alert(msg.error); return; } else if (op == UserOperation.ListCommunities) { let res: ListCommunitiesResponse = msg; this.state.communities = res.communities; this.state.communities.sort((a, b) => b.number_of_subscribers - a.number_of_subscribers); this.state.loading = false; this.setState(this.state); } else if (op == UserOperation.FollowCommunity) { let res: CommunityResponse = msg; let found = this.state.communities.find(c => c.id == res.community.id); found.subscribed = res.community.subscribed; found.number_of_subscribers = res.community.number_of_subscribers; this.setState(this.state); } } }