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import { Component } from 'inferno';
import { Helmet } from 'inferno-helmet';
import { Subscription } from 'rxjs';
import { retryWhen, delay, take } from 'rxjs/operators';
import { PostForm } from './post-form';
import { toast, wsJsonToRes } from '../utils';
import { WebSocketService, UserService } from '../services';
import {
UserOperation,
PostFormParams,
WebSocketJsonResponse,
GetSiteResponse,
Site,
} from '../interfaces';
import { i18n } from '../i18next';
interface CreatePostState {
site: Site;
}
export class CreatePost extends Component<any, CreatePostState> {
private subscription: Subscription;
private emptyState: CreatePostState = {
site: {
id: undefined,
name: undefined,
creator_id: undefined,
published: undefined,
creator_name: undefined,
number_of_users: undefined,
number_of_posts: undefined,
number_of_comments: undefined,
number_of_communities: undefined,
enable_downvotes: undefined,
open_registration: undefined,
enable_nsfw: undefined,
},
};
constructor(props: any, context: any) {
super(props, context);
this.handlePostCreate = this.handlePostCreate.bind(this);
this.state = this.emptyState;
if (!UserService.Instance.user) {
toast(i18n.t('not_logged_in'), 'danger');
this.context.router.history.push(`/login`);
}
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')
);
WebSocketService.Instance.getSite();
}
componentWillUnmount() {
this.subscription.unsubscribe();
}
get documentTitle(): string {
if (this.state.site.name) {
return `${i18n.t('create_post')} - ${this.state.site.name}`;
} else {
return 'Lemmy';
}
}
render() {
return (
<div class="container">
<Helmet title={this.documentTitle} />
<div class="row">
<div class="col-12 col-lg-6 offset-lg-3 mb-4">
<h5>{i18n.t('create_post')}</h5>
<PostForm
onCreate={this.handlePostCreate}
params={this.params}
enableDownvotes={this.state.site.enable_downvotes}
enableNsfw={this.state.site.enable_nsfw}
/>
</div>
</div>
</div>
);
}
get params(): PostFormParams {
let urlParams = new URLSearchParams(this.props.location.search);
let params: PostFormParams = {
name: urlParams.get('title'),
community: urlParams.get('community') || this.prevCommunityName,
body: urlParams.get('body'),
url: urlParams.get('url'),
};
return params;
}
get prevCommunityName(): string {
if (this.props.match.params.name) {
return this.props.match.params.name;
} else if (this.props.location.state) {
let lastLocation = this.props.location.state.prevPath;
if (lastLocation.includes('/c/')) {
return lastLocation.split('/c/')[1];
}
}
return undefined;
}
handlePostCreate(id: number) {
this.props.history.push(`/post/${id}`);
}
parseMessage(msg: WebSocketJsonResponse) {
console.log(msg);
let res = wsJsonToRes(msg);
if (msg.error) {
toast(i18n.t(msg.error), 'danger');
return;
} else if (res.op == UserOperation.GetSite) {
let data = res.data as GetSiteResponse;
this.state.site = data.site;
this.setState(this.state);
}
}
}